RHYTAX® Drive<<CAUTION>>■ The product should be handled by an experienced and skilled personnel.
■ The maintenance manual should be delivered to a customer who uses the product.
■ Make sure the maintenance manual stored securely.

Maintenance manual No.NM2102E-2

Introduction: Safety Precautions- Carefully read this maintenance manual and all accompanying documents before use (installation, operation, maintenance, inspection, etc.). Thoroughly understand the machine, information about safety, and all precautions for correct operation. Thoroughly understand the machine, information about safety, and all precautions for correct operation.					After reading, retain this manual for future reference.
- Pay close attention to the "DANGER" and "CAUTION" warnings regarding safety and proper use.

DANGER

Improper handling may result in physical damage, serious personal injury and / or death.

CAUTION

Improper handling may result in physical damage and/ or personal injury.

Matters described in

CAUTION may lead to serious danger depending on the situation.

Be sure to observe important matters described herein.

DANGER- Transport, installation, plumbing, wiring, operation, maintenance, and inspections should be performed by trained technicians; otherwise, electric shock, injury, fire, or damage to the equipment may result.
- In the case of maintenance with disassembly of this device, contact the nearest authorized maintenance shop.
- In the case of an explosion proof motor, the work of transportation, installation, plumbing, wiring, operation, maintenance,
and inspection should be performed by persons who have knowledge and skill concerning various explosion proof structures, installation of electrical facilities, related laws and regulations, and also principles and functions. otherwise, explosion,
ignition, an electric shock, injury, a fire, or damage to the equipment may occur.
- When the unit is to be used in a system for human transport a protecting device for human safety should be installed to prevent chances of accidents resulting in personal injury or damage to the equipment due to running out of control or falling.
- When the unit is to be used for an elevator or lifter, install a safety protecting device on the elevator side to prevent it fromfalling; otherwise, personal injury or damage to the equipment due to falling of hoisting equipment.

1Introduction: How to Refer to the Maintenance Manual, Table of Contents
This instruction manual is common to the gearmotor and the reducer.
The marks in the table below are used for classification by being attached to top right or top left of each page, so read the applicableparts.
Also, regarding only certain specifications in pages marked COMMON , a mark is applied to the text concerned.

Specifications

SymbolCommon to All
Specifications

Gearmotor
Without Brake

Speed Reducer
With Brake

CommonContents
Introduction: Safety Precautions………………………………………………………………………………………… 1
Introduction: Reading the Maintenance Manual, Table of Contents… ……………………………………………… 2
1. Receiving Inspection…………………………………………………………………………………………………… 3
2. Storage… ……………………………………………………………………………………………………………… 6
3. Transport… …………………………………………………………………………………………………………… 7
4. Installation……………………………………………………………………………………………………………… 8
5. Coupling with Other Machines… …………………………………………………………………………………… 9
6. Wiring…………………………………………………………………………………………………………………… 20
7. Operation… …………………………………………………………………………………………………………… 38
8. Daily Inspection and Maintenance… ………………………………………………………………………………… 40
9. Troubleshooting… …………………………………………………………………………………………………… 71
10. Construction Drawings… …………………………………………………………………………………………… 73
11. Warranty… …………………………………………………………………………………………………………… 75

2

1. Receiving Inspection Common
CAUTION- Unpack the unit after verifying that it is positioned right side up; otherwise, injury may result. otherwise, injury may result.
- Verify that the unit received is in fact the one you ordered. Installing the wrong unit may result In personal injury or equipment damage.
- Do not remove the nameplate.

Verify the items listed below upon receiving the product. If a nonconformity or problem is found, please contact with your nearest
agent, distributor, or sales office.
[1] Does the information on the nameplate conform to what you ordered?
[2] Was any part broken during transport?
[3] Are all bolts and nuts tightened firmly?

1-1 Reading the Nameplates
There are two main types of nameplates: type 1 and type 2. Representative examples are shown below. Please observe them by type.
When contacting the company, please provide [1]. Gearmotor or reducer nomenclature, [2]. Reduction ratio, and [3]. Serial number.

(1) Gearmotor- Motor capacity- Motor characteristics[1] Gearmotor nomenclature(see P4)- Motor Nomenclature (see P5)- For motor with brakeB rake type for motor with brake(see P5)[2] Reduction Ratio- Service factor- Input capacitance,
motor speed- Motor frame size
- For motor with brake
Brake torque for motor withbrake

- Allowable output torque[3] Serial number[3] Serial number-B rake current value for for motor withbrake For motor with brake(Gear Unit Nameplate)(Motor Unit Nameplate)Figure 1-1 Gearmotor Nameplate(2) Speed reducer[1]Type of speed reducer(see P4)[2] Reduction ratio- Service factor- Input capacitance, motor speed- Allowable output torque[3] Serial number
Figure 1-2 Nameplate of Speed Reducer

1-2 Lubrication Method
Oil lubrication parts Oil is removed from oil lubrication parts before shipment from our factory. Supply recommended oil before use.
(see P41 - 43)3Common

1. Receiving Inspection

1-3 Gearmotor and Speed Reducer Type Nameplate
Symbol meanings are shown below. Please confirm that the nomenclature matches the order.

K H Y M
Model Symbol
K RHYTAX DRIVE

3

72

Special Specification
Standard
Blank
Specification
SpecialS
Specification

Output Shaft
Alignment
None
Blank
(Hollow Shaft)L(see P11 - 14)R
T Both Sides

Output Shaft Direction
H Horizontal
Vertical (Hollow Shaft)V
Vertical, Down (Solid Shaft)
W Vertical, Up (Solid Shaft)

M

JM

B

Blank
Note:

Auxiliary TypeWith 3-Phase Motor

With Premium-Efficiency,
3-Phase Motor
With Premium-Efficiency,AP
3-Phase Motor for Inverter
Note: For gearmotor only.
EP

With High-Efficiency,
3-Phase Motor

AV

With AF Motor for Inverter

Motor Capacity (Gearmotor)
4
P

08

1

10

Symbol

05

1H

2

3

4

5

8

kW
(HP)

0.4 0.55 0.75 1.1(1/2) (3/4) (1) (1.5)

1.5
(2)

2.2
(3)

3.0
(4)

3.7
(5)

5.5 7.5 11
15 18.5 22303745(7.5) (10) (15) (15) (25) (30) (40) (50) (60)

4

15

20

25

30

40

Reduction
Ratio
Nominal Ratio

ES

Frame Size
72
72DA
82
82DA
92
95
92DA
102
105
102DA
112
115
112DA

Input Side Type
Speed
Reducer
Gearmotor(Direct Coupling)
Speed reducer
Blank(Double Shaft Type)With Motor Flange
J(With a Connecting Stand, Connected to a Coupling)

80

With or without
Brake
Without
Blank
Brake
B With Brake

Mounting
Position(see P10 - 14)

Mounting Style
Hollow Shaft, Shaft Mount
Y
Hollow Shaft, Flange
F Solid Shaft, Flange
H Solid Shaft, Foot

Gearmotor

EP Y1

50

60

1. Receiving Inspection
1-4 Motor Nomenclature
Symbol meanings are shown below. Please confirm that the nomenclature matches the order.
When using other manufacturer’s motor due to motor’s specification, follow the operation manual for that motor.

H

T

C

E

X
Explosion Proof, Protection Method
A Increased Safety (Indoor)
B Increased Safety (Outdoor)
C Flame Proof (Indoor)
CX Flame Proof (Outdoor)
X No Explosion Proof (Outdoor)
Blank No Explosion Proof (Indoor)

Mounting Style
H FootBlank Flange
Type of Enclosure
T Totally Enclosed

Driving Power Supply
V Inverter Drive (Motor for Inverter)
Blank Commercial Power Source Drive

C
K

Rotor
Ordinary cageSpecial cageF
B
E

Cooling Method
With Fan (Self Ventilation)
With Fan (Fan Motor Ventilation)
Fanless (Self Ventilation)

Support for Standards and Regulations
P Premium-Efficiency Motor
E High-Efficiency Motor (IEC Standard)
Blank Motor Other Than Above
Other Specification
A UL, NEMA, CSA Specification (230, 240, 460, 480V)
C UL, NEMA, CSA Specification (575V)
Blank Motor Other Than Above

1-5 Brake TypeThe relationship between the standard brake type and the motor type and capacity is as follows:
Table 1-1 Brake Type
Motor Capacity (kW)Brake Type
FB-05A1
FB-1D
FB-1E
FB-1HE
FB-2E
FB-3E
FB-4E
FB-5E
FB-8E
FB-10E
FB-15E
FB-20
FB-30
ESB-250(Horizontal type)
ESB-250-2(Vertical type)3-Phase Motor
0.4
0.55
-

Premium-Efficiency,
Premium-Efficiency,
AF Motor for Inverter 3-Phase Motor for
3-Phase Motor
Inverter
0.4
0.75
0.75
1.1
1.5
1.5
2.2
2.2
3.0
3.7
3.7
5.5
5.5
7.5
7.5
11
11
15
15
18.5 22 30
18.5 22 30
37 45

30 37

37 45

Note) The brake type may differ from that in Table 1-1 depending on the specifications. Check the nameplate.

5Common

2. Storage

If this product is not for immediate use, note the following points when storing it.

2-1 Storage Location
Store the product in the clean and dry indoor.
Do not store outdoors. Store in a location that is free of moisture, dust, extreme temperature changes, corrosive gases, etc.

2-2 Storage Period- The storage period should be less than 6 months.
- Standard rust prevention specifications
External rust prevention	Rust prevention oil is applied before shipping from the factory. Once every 6 months after the productis shipped, check the machined surfaces for rusting, and if necessary, apply rust preventive oil once
again.
Internal rust prevention

Rust prevention period: 6 months

		Store in an ordinary factory or warehouse in an environment free of moisture, dust, extreme temperature changes, corrosive gases, etc.
- If the equipment is to be exported or stored for at least one year, special rust prevention measures must be taken.
- If the equipment is to be stored for at least 6 months, run it for several minutes under no load, once every 2 to 3 months. Measure andcheck the insulation resistance of the motor at that time (refer to P21.)

2-3 Using after Storage- Oil seals are affected by temperature, ultraviolet light and other ambient conditions and can easily degrade. After long storage periods, inspect before operation, and replace any degraded seals with new seals.
- If the equipment is to be stored for at least 2 years, replace the oil seals and replenish the grease immediately before resuming operation.
- At startup, check that there are no unusual noises, vibrations, temperature rises, or other symptoms. For motor with brakes, check thatbrakes work properly. If any abnormalities are found, immediately contact the nearest authorized maintenance shop.

63. Transport Common
DANGER- Do not step under the unit suspended by a crane or other machines for transport; otherwise, injury, or death may result.

CAUTION- Be careful not to drop the gearmotor or speed reducer during transport.					When a hanging bolt or hole is provided, make sure to use it. After mounting the gearmotor or speed reducer on a system,
however, do not hoist the entire system using the hanging bolt or hole; otherwise, the system may be damaged by the falling
unit or broken brackets.
- Before hoisting, check the weight with the nameplate, crate, outline drawing, catalog, etc. Never hoist the gearmotor or speed
reducer that exceeds load capacity of the crane or other mechanism being used to lift it; otherwise, injury or damage to theequipment and/or lifting device may occur.
- Use a suitable hoisting attachment, check to ensure that the eye bolts and nuts are not loose, and then hoist the product.
- Before installing, moving or transporting the equipment, be sure to drain off the lubricating oil.				
If you move the equipment with lubricating oil inside, the lubricating oil may flow out from the oil filler plug.

7

Common

4. Installation
DANGER- Do not use the unit in an explosive atmosphere. Use an explosion proof motor in that case; Otherwise, explosion, ignition, an
electric shock, injury, a fire, or damage to the equipment may occur.
- Use an appropriate explosion proof type motor in a danger zone (which is likely to be filled with explosive gas or steam);
Otherwise, explosion, ignition, an electric shock, injury, a fire, or damage to the equipment may occur.
- F or inverter driven flame proof motor ,the inverter unit is not explosion proof construction. So be sure to place it in a location
where there is no explosive gas. Otherwise, explosion, ignition, an electric shock, injury, a fire, or damage to the equipment
may occur.

CAUTION- Do not use the products for purposes other than those shown on the nameplate or in the manufacturing specifications; otherwise, electric shock, personal injury, or damage to the equipment may result.
- Do not place inflammables around the gearmotor; otherwise, a fire may occur.
- Do not place any objects that hinder ventilation around the gearmotor or speed reducer; otherwise, cooling effects may be
reduced, leading to a fire hazard due to excessive heating.
- Do not step on or hang from the gearmotor or speed reducer; otherwise, injury or damage to the equipment may result.
- Do not touch the shaft end of the products, inside keyways, or the edge of the cooling fan with bare hands; otherwise, injury
may result.
-When the unit used in food processing applications which is vulnerable to oil contamination, install an oil pan or other suchdevice to cope with oil leakage due to failure or limited service life; otherwise, oil leakage may damage products.
- Before installing, moving or transporting the equipment, be sure to drain off the lubricating oil. If you move the equipment
when it contains lubricating oil, the lubricating oil may flow out from the air bleed plug.

4-1 Location of Installation
Ambient temperature:−10 to +40°C

Ambient humidity:

85% max.

Altitude:

1000m max.

Ambient atmosphere:

There should be no corrosive gas, explosive gas, or steam.
The location should be well ventilated and free from dust.

Location of installation:

Indoor type:

Indoor (free from dust or water splash)Outdoor type: Indoor or outdoor (area with little contact with rain water)
Vibration:

1G max.

- Mounting In conditions other than the above requires adherence to optional specifications. Please consult with us.
- Drives built according to special specifications, such as explosion proof, can be used In the specified Mounting environments. However, concerning the connector to the machine used, implement measures based on the Mounting environment.
- Mount In a location that enables easy operation, such as inspection and maintenance.
- Mount on a sufficiently rigid base.

4-2 Mounting Angle
Install the gearmotor or speed reducer so that the output shaft and the motor shaft are horizontal or vertical.
(The mounting direction will depend upon the model, so refer to P4. Also, when you wish to install it obliquely, please contact us.)Note, however, that if the product is manufactured according to your designated mounting angle, do not use it at any other mounting angle.
Do not remove the eyebolt from the motor. If it is removed for some reason, insert a bolt, etc., into the threaded hole to prevent
water from entering the motor.

4-3 Severe Load Conditions
We recommend using mounting bolts of strength at least class 8.8 (as indicated in JISB-1051), for conditions with strong vibrations or
frequent start-stop.

8

5. Coupling with Other Machines Common
CAUTION- Check the rotation direction before coupling with its driven machine. Difference in the direction of rotation may cause injury
or damage to the equipment.
- Remove the key temporarily attached to the output shaft of the gearmotor or speed reducer, when the shaft is unattached toany other vehicle (i.e.: not loaded); 										otherwise the key could fly off, and injury may result.
- Install appropriate protective device around rotating parts; otherwise, injury may result.
- When coupling the gearmotor or speed reducer with other machine, pay attention to the alignment, belt tension, and parallelism of pulleys. Pay attention to the direct coupling accuracy when the unit is directly coupled with another machine. Whena belt is used for coupling, adjust the belt tension correctly. Correctly fasten tightening bolts on the pulley and coupling before operation; otherwise, injury or damage to the equipment may result due to scattering fragments.

5-1 Confirming Rotation Direction and Location of Oil Filling/Drain Ports(1) Gearmotor- Directions of output shaft rotation with wiring shown on P23 - 36 and location of oil filling/drain ports are as shown in P10 - 14.
- When wiring is performed as shown on P23 - 36, the motor shaft rotates to the right as seen from the fan cover side.
- To cause reverse rotation, reverse R and T shown on P23 and P25 - 36.

(2) Speed Reducer- In the case where the input shaft rotates clockwise, the direction of the output shaft is as the arrow direction shown in P10 to 14.		
Check it as well as the position of the oil filling/drain ports.

95. Coupling with Other Machines

CommonHollow Shaft, Shaft Mount
KHYM-□-Y1

KHYM-□-Y2

KHYM-□-Y3

Top

Top

Top

A
A
A

A〜

A〜

A〜

Bottom

Bottom

BottomKHYJM-□-Y4

KVYM-□-Y5

KVYM-□-Y6

Top

A

BottomA Top

A〜

BottomTop

A

A〜

BottomOil filling port

Oil level

A〜

Oil drain port

Hollow Shaft, Flange Type (L Side）
KHYM-□-F1

KHYM-□-F2Top

KHYM-□-F3

Top

Top

A

A
A
A〜

A〜

A〜

Bottom

Bottom

BottomKHYJM-□-F4KVYM-□-F5

KVYM-□-F6

Top

Top

A

A〜

BottomTop A

BottomA

A〜

BottomOil filling port

Oil level

A〜

Oil drain port

Hollow Shaft, Flange Type (R Side）
KHYM-□-G1

KHYM-□-G2

KHYM-□-G3

Top

Top

Top

A

A
A
A〜

BottomKHYJM-□-G4
Top

A

A〜

BottomKVYM-□-G6

Top

Top A

A〜

BottomA〜

BottomKVYM-□-G5

BottomA

A〜

A〜

BottomOil filling port

Figure 5-1 Confirming Rotation Direction and Location of Oil Filling/Drain Ports (Hollow Shaft)

10

Oil level

Oil drain port

5. Coupling with Other Machines Common
Solid Shaft, Flange Type, Shaft Alignment L (L Side）
KHFM-□L-F1

KHFM-□L-F2

KHFM-□L-F3

Top

Top

Top

A

A
A
A〜

A〜

A〜

Bottom

Bottom

BottomKHFJM-□L-F4

KWFM-□L-F5

KVFM-□L-F6

A

A

Top

BottomTop

A〜

BottomTopA〜

A Bottom
Oil filling port

Oil level

A〜

Oil drain port

Solid Shaft, Flange Type, Shaft Alignment R (L Side）
KHFM-□R-F1

KHFM-□R-F2

KHFM-□R-F3

Top

Top

Top

A

A
A
A〜

A〜

A〜

Bottom

Bottom

BottomKHFJM-□R-F4

KVFM-□R-F5

KWFM-□R-F6

Top

Top

A

A〜

Bottom

Bottom

A

Top

A

A〜

A〜

BottomOil filling port

Oil level

Oil drain port

Solid Shaft, Flange Type, Shaft Alignment T (L Side）
KHFM-□T-F1

KHFM-□T-F2

KHFM-□T-F3

Top

Top

Top

A

A
A
A〜

BottomKHFJM-□T-F4
Top

A〜

Bottom
KVFM-□T-F6

Top

A

A〜

BottomA〜

Bottom
KWFM-□T-F5

Bottom

Top

A

A

A〜

A〜

BottomOil filling port

Oil level

Figure 5-2 Confirming Rotation Direction and Location of Oil Filling/Drain Ports (Solid Shaft, Flange Type, L Side)11

Oil drain port

5. Coupling with Other Machines

CommonSolid Shaft, Flange Type, Shaft Alignment L (R Side）
KHFM-□L-G1

KHFM-□L-G2

KHFM-□L-G3

Top

Top

Top

A

A
A
A〜

A〜

A〜

Bottom

Bottom

BottomKHFJM-□L-G4

KWFM-□L-G5

KVFM-□L-G6

A

A Top

Top

BottomA〜

BottomTop

A〜A
Oil filling port

Bottom

Oil level

A〜

Oil drain port

Solid Shaft, Flange Type, Shaft Alignment R (R Side）
KHFM-□R-G1

KHFM-□R-G2

KHFM-□R-G3

Top

Top

Top

A

A
A
A〜

A〜

A〜

Bottom

Bottom

BottomKHFJM-□R-G4

KVFM-□R-G5

KWFM-□R-G6

Top

Top

A

A〜

BottomTop

BottomA

A〜A

BottomOil filling port

Oil level

A〜

Oil drain port

Solid Shaft, Flange Type, Shaft Alignment T (R Side）
KHFM-□T-G1

KHFM-□T-G2

KHFM-□T-G3

Top

Top

Top

A

A
A
A〜

BottomKHFJM-□T-G4
Top

A

A〜

Bottom
KWFM-□T-G6

Top

Top A

A〜

BottomA〜

Bottom
KVFM-□T-G5

BottomA

A〜

A〜

BottomOil filling port

Oil level

Figure 5-3 Confirming Rotation Direction and Location of Oil Filling/Drain Ports (Solid Shaft, Flange Type R Side)12

Oil drain port

5. Coupling with Other Machines Common
Solid Shaft, Foot Type, Shaft Alignment L
KHHM-□L-K1

KHHM-□L-K2

Top

KHHM-□L-K3

Top

Top

A
A
A

A〜

BottomKHHJM-□L-K4
A

A〜

A〜

Bottom

BottomKWHM-□L-K5

KVHM-□L-K6

A Top

Top

BottomA〜

BottomTop

A〜A
Oil filling port

Bottom

Oil level

A〜

Oil drain port

Solid Shaft, Foot Type, Shaft Alignment R
KHHM- □R-K1

KHHM- □R-K2

KHHM- □R-K3

Top

Top

Top

A
A
A〜

A

A〜

A〜

Bottom

Bottom

BottomKHHJM- □R-K4

KVHM- □R-K5

KWHM- □R-K6

Top

Top

A

A〜

BottomTop

BottomA

A〜A

BottomOil filling port

Oil level

A〜

Oil drain port

Solid Shaft, Foot Type, Shaft Alignment T
KHHM-□T-K1
Top

KHHM-□T-K2
Top

KHHM-□T-K3
Top

A

A
A〜

BottomKHHJM-□T-K4
Top

A

A

A〜

BottomKVHM-□T-K6

Top

Top

A〜

BottomA〜

BottomKVHM-□T-K5

Bottom

A

A

A〜

A〜

BottomOil filling port

Oil level

Figure 5-4 Confirming Rotation Direction and Location of Oil Filling/Drain Ports (Solid Shaft, Foot Type)13

Oil drain port

Common

5. Coupling with Other Machines

Solid Shaft, Foot Type (Floor Installed), Shaft Alignment L, R, T
KHHM-□L-V2

KHHM-□R-V2

KHHM-□T-V2

Top

Top

Top

A

A

A

A〜

BottomA〜

A〜

Bottom

BottomOil filling port

Oil level

Figure 5-5 Confirming Rotation Direction and Location of Oil Filling/Drain Ports (Solid Shaft, Foot Type, Floor Installed)

14

Oil drain port

5. Coupling with Other Machines Common
5-2 Mounting Connector- When mounting connector, do not give an impact or excessive axial load to the shaft. Otherwise, the bearing may be damaged orcollar may come off.
- shrinkage-fit is recommended.

(1) When Using a Coupling
The alignment accuracy (A, B, X) in figure 5-6 should be no greater than that shown in Table 5-1.
Table 5-1 Centering Accuracy of Flexible Coupling
B

A

Allowable Tolerance A

0.1mm or manufacturerspecified value
Manufacturer-specified
value

Dimension B Tolerance

0.1mm or manufacturerspecified value
Manufacturer-specified
value

X

manufacturer-specified
value

X

X

Figure 5-6(2) When Using Chains, Sprockets, or Gears- When using a chain, attach so that the chain tension angle is perpendicular to the shaft.
- Refer to the chain catalog or other reference for chain tension.
- Select a sprocket or gear pitch diameter that is at least three times the shaft diameter.
- The working load point of the sprocket or gear should go from the center of the shaft to this product. (See Figure 5-7)(3) When Using a V Belt
- Over-tightening the V belt will damage the shaft and bearing. Refer to the V belt catalog or other reference for V belt tension.
- The parallelism, eccentricity β of the two pulleys should be within 20´. (See Figure 5-8)
- When using multiple V belts, use a matched set having the same length.

Connector

This product
β

Shaft

β

Figure 5-7

Figure 5-815Common

5. Coupling with Other Machines

5-3 Hollow Shaft, Torque Arm/Flange Mounted(1) Driven Shaft Length
When mounting the driven shaft onto the hollow shaft, make sure that the insertion length is at or above the "recommended driven
shaft length."
Refer to the catalog or consult us for more details.

(2) Mounting on the Driven Shaft[1] A pply the molybdenum disulfide grease to the surface of the driven shaft and the hollow shaft bore and insert the product into thedriven shaft.

トルクアーム取付1[2] I f the fit is tight, lightly hit the end face of the hollow shaft with a wooden hammer to insert the shaft. When doing so, never hit the caseor the oil seal directly. If the fit is particularly tight, use a jig such as the one shown in Figure 5-9 for a smoother insertion.
abⓐ Retaining ringcⓑ Spacerⓒ Thrust bearing

d

ⓓ Nut

e

ⓔ Stud bolt

Figure 5-9 Mounting Jig
The hollow shaft is created with a JIS H8 tolerance. The following tolerances are recommended for driven shafts.
- If an impact does not occur when a uniform load is applied: JIS h6 or js6- If an impact is expected or the overhung load is significant: JIS js6 or k6- Size of retaining ring (snap ring): JI B 2804 C-ring(3) Mounting on the Driven Shaft
If you use torque arm for retaining, be sure to fix the product onto the driven shaft.
Bearing unit

Spacer

Set screw

Stopper

Machine side
Fixing With a Spacer(With No Driven Shaft Step)

Fixing with a Stepped Shaft

Fixing With a Set Screw And a Stopper Ring
(No Driven Shaft Step)

Figure 5-10 Method of Fixing So That the Product Does Not Move to the Machine Side
Retaining ringSpacerEnd plate

Stopper
Set screw

Machine side
Fixing with a Spacer And a Snap

Fixing With an End Plate

Fixing With a Set Screw And a Stopper Ring

Figure 5-11 Method of Fixing So That the Product Does Not Move in the Opposite Direction of the Machine
Notes: 1. Jigs and parts for installation or fixing are to be prepared by the customer.
2. Refer to the catalog for recommended sizes.

16

5. Coupling with Other Machines Common(4) Mounting Torque Arm (Option)(1) Mount the torque arm on the driven shaft machine side of the case.
(2) E nsure there is some degree of freedom for the torque arm retainer (Figure 5-13, 5-14) so that no excessive force is applied between
the product and the driven shaft. (The retainer is to be prepared by the customer.)(3) N ever fix the torque arm using a retainer bolt.
(4) I f frequent starting and stopping are expected, or for repetitious plugging operations, attach

Disk springa disk spring (see Fig. 5-12) between the torque arm and the mounting bolt (or spacer) as abuffer material to lessen the impact.
(5) Use bolts that have a strength class of at least 10.9 (JIS B 1051).
(6) When installing the torque arm, be sure to lock the bolt.
(Use spring washers, U nuts, or apply locking adhesive.)

Figure 5-12 Disk Spring
Make sure to havesome room

Torque arm

Special bolt
or pinFlat washer
Spacer

Locking part of
torque arm
Part of

Adjust the amount of the space to a size that
does not result in excessive force or contact
based on the movement of the machine.

Torque arm and machine-side base fixed(adhered) with no freedom of motion
The retainer bolt, machine or the product may be damaged due to excessive
force.

Good Example

Bad Example

is to be supplied by customer.

Figure 5-13 Retainer Mounting Examples (Attachment Type Torque Arm)

Torque arm

Make sure to havesome room

SpacerFlat washer

Special bolt

Good Example
Figure 5-14 Retainer Mounting Examples (Plate Type Torque Arm)17

No freedom intorque armʼs motion

Bad Example

Common

5. Coupling with Other Machines(5) Flange Mounted Option[1] Mount the product on the driven shaft machine.
[2] Assemble the driven shaft on the hollow shaft.
[3] Assemble the bearing unit onto the driven shaft, and upon confirming that there is no shaft looseness, fix the bearing unit.

Note: E xercise caution to prevent the case from getting twisted relative to the driven shaft and the hollow shaft, which may result in excessive force. Otherwise, the product and shaft bearing unit may be subjected to an unreasonable force, resulting in a damage of internal
parts.

Bearing unit
This productThe concentricity of the driven shaft
and the mounted spigot is not appropriate.

Good Example

The perpendicularity of the driven shaft centerand the mounted ange surface is not appropriate.

Bad Example

トルクアームの取付2Figure 5-15 Flange Mounted Example(6) Removing from the Driven Shaft
Be careful not to allow excessive force to apply between the case and the hollow shaft. Use a jig such as the one shown in Figure 5-16
to remove it more smoothly.
iⓕ Spacerⓖ Finished boltⓗ Disc
h

A

f

g

A〜

Figure 5-16 Removal of Jig
Notes: 1. The removal jig and parts are to be prepared by the customer.
2. Refer to the catalog for recommended sizes.

18ⓘ Retaining ring

5. Coupling with Other Machines Common
5-4 Hollow Shaft, Shrink Disc Mounted(1) Mounting Shrink Disc (Option)
A shrink disc is installed on the product before shipment, with its face for clamping bolt coated with grease. Therefore you can install
as-is.
(1) I f an object is lodged between both plates while the equipment is being transported, you can dislodge it by slackening all of the bolts.
(2) When you wish to remove a shrink disc that you had used previously, and then reuse it, 1) disassemble and wash it, 2)coat the sliding
cone, fastener bolts, and the face touching the bolt head with molybdenum disulfide grease.
(3) Completely degrease the boss holes and also the shafts touching them.
(4) S lide the shrink disc over the hollow shaft. Do not tighten the fastener bolts until the driven shaft enters the hollow shaft.
(5) Slide the driven shaft or this product, and insert the driven shaft into the hollow shaft.
(6) When tightening the bolts, take care to ensure that the faces of both plates are parallel to each other. In this case, it is recommended
that you use a spanner with a short handle.
(7) C heck that the shrink disc has been set correctly, and then tightening the fastener bolts with spanner of proper length.
While maintaining both plates uniformly in sequence, tighten the fastener bolts in the clockwise direction (not in diagonally opposite
pairs.) In this case, it is recommended that you tighten each bolt 30° in one turn.
(8) After the shrink disc has been tightened, be sure to use a torque wrench to obtain the tightening torque indicated in Table 5-2.
(9) Finally, check if both plates are parallel to each other.
Table 5-2 Fastener Bolts
Strength Class (JIS B 1051)
Size
Tightening Torque (N･m)

10.9
M8
29.4

M10
57.8

Note: D o not operate the gearmotor or speed reducer until the shrink disc has been installed by following the above procedure. The contacting parts of the hollow shaft and the driven shaft are not lubricated, so if you rotate the motor when it has been installed using an
incorrect method, the shaft is liable to become damaged or scuffed.

(2) Removing Shrink Disc
(1) Remove the shrink disc in the reverse sequence to the mounting procedure.
(2) To prevent both plates from tilting on the sliding cone, slacken the bolts in sequence a little at a time.
(3) I f both plates are not parallel to each other, do not attempt to remove the bolts. Both plates are likely to suddenly fly off the sliding
cone. For this reason, gently slacken all of the bolts, then insert a wedge between the two plates so that they are parallel.

Plate
Tightening bolt

Sliding cone
Hollow shaft(Output shaft of reducer)
Degrease inner diameter of hollow shaft andexternal diameter of driven shaft completely.

Driven shaft(Shaft of application machine)

Figure 5-17 Shrink Disc Structure19

6. Wiring
When using other manufacturer’s motor (another manufacturer’s motor could conceivably be used depending upon the specifications of the motor), refer to the instruction manual for the motor concerned.
This manual shows wiring for motors with Japanese standard specifications. Please consult with us for motors with overseas specifications.

DANGER- Do not handle the unit when cables are energized. Be sure to turn off the power when working on the unit; otherwise, electric
shock may result.
- Connect a power cable to the unit according to the diagram shown inside the terminal box or in the maintenance manual;
otherwise, electric shock or fire may result.
- Do not forcibly bend, pull, or clamp the power cable and lead wires; otherwise, electric shock or fire may result.
- Correctly ground the grounding bolt; otherwise, electric shock may result.
- In the case of explosion proof motor, drew lead wire with following the facility’s regulations, electrical codes, and explosion
proofing standard. otherwise, electric shock, injury, fire, or damage to the equipment may result.

CAUTION- When wiring, follow the facility’s regulations and electrical codes, in order to prevent burning, electric shock, injury, and fire.
- The motor is not equipped with a protection device. However, it is compulsory to install an overload protector according tofacility electrical codes. It is recommended to install other protective devices (earth leakage breaker, etc.), in addition to an
overload protector to prevent burning, electric shock, injury, and fire.
- Do not touch the terminals when measuring insulation resistance; otherwise, electric shock may result.
- When using a star-delta starter, select one with an electromagnetic switch on the primary side (3-contact point type); otherwise, fire may result.
- Voltage PWM inverters that use I GBT generate high-voltage surges at the motor terminals, which may degrade the insulationon the motor windings. Especially when hen using long 400v cable, a surge voltage over 1300V occurs. Therefore, in this case,install an LCR filter, AC reactor, etc. between the inverter and motor to inhibit the surge voltage.
- For motor with brake, do not energize the brake coil when the motor is stopped. Otherwise coil burnout fire may result. Also,
mistaken wiring could damage the rectifier.
- When measuring the insulation resistance of explosion proof motor , confirm that there is no gas or explosive vapor in thevicinity, in order to prevent explosion or ignition.
- If ambient temperature exceeds 60°C, place the rectifier in a location where the temperature is 60°C or less. In this case, always protect the entire rectifier with a cover. However, standard ambient temperature conditions for units with and without
brakes is -10 to +40°C. (Manufacturing with a special specification is required for operation in an environment where ambient
temperature exceeds 40°C.)- Long cables cause large voltage drops. Select cables with appropriate diameter so that the voltage drop will no be grater
than 2%.
- After wiring outdoor types and explosion proof types, check that terminal box mounting bolts are not loose, and correctly
attach the terminal box cover.

20

6. Wiring
6-1 Removing and Attaching the Resin Terminal Box Cover
3-phase motor: 0.4 kW(1) Removal
As shown in Figure 6-1, to remove the cover, grab the sides of the terminal box, and pull it toward you.

(2) Attachment
Push the terminal box cover from above the terminal box case until it snaps shut.

Figure 6-1

6-2 Measuring Insulation Resistance
When measuring insulation resistance, always disconnect the control panel and measure the motor alone.
Measure insulation resistance before wiring. Insulation resistance (R) is changed by a number of factors, including motor output, voltage, type of insulation, winding temperature, moisture, degree of fouling, time used, and amount of applied voltage for test However,normally, it must be above the values in Table 6-1.
Table 6-1 Values for Insulation ResistanceMotor Voltage
Low-voltage electric motors of
no more than 600V

Megohmmeter Voltage

Insulation Resistance (R)500V

1 MΩ or more

Reference: JEC-2100 contains the following equation.

R≧

R≧

Rated Voltage (V)Rated output power (kW) + 1,000
Rated Voltage (V) + (RPM/3)
Rated output power (kW) + 2,000（MΩ）＋ 0.5（MΩ）

Low insulation resistance is a sign that there is an insulation failure. Do not apply power. Consult an accredited maintenance shop.

6-3 Coordination of System Protection- use a wiring breaker for short circuit protection.
- use an overload protection device designed to handle currents that exceed the rated current on the nameplate.
- For increased safety motors, use an overload protection device designed to handle currents that exceed the rated current on the nameplate.

6-4 Connecting the Power Cable
Connect the power cable and motor lead wire by clasping in a pressure connection

Power source cableterminal as shown in Figure 6-2.

Insulation tape
Motor lead

Figure 6-2

21

6. Wiring
6-5 Motor Wiring
Showing page number having motor wiring diagrams.
Table 6-2 Without Brake
Page
Direct Input
Number of Lead
Motor TypeCapacity (kW)
from
Wires
Inverter Drive
Commercial
Power Source
Standard
0.4 - 0.55
3
P23
P24
3-Phase Motor
0.4 - 7.5
3
Increased safety
P23
11 - 4560.75 - 3.7
3Standard
P23
P24
Premium
5.5 - 456-Efficiency,
0.75 - 3.7
3
3-Phase Motor Increased safety
P23
5.5 - 22
6
0.4
3
AF Motor for Inverter
P24
30 - 37
11
Normal Braking Circuit
for Inverter Circuit
0.75 - 3.7
3
P24
Premium-Efficiency,
5.5 - 45
6
3-Phase Motor
Table 6-3 With Brake							Motor Type
3-Phase Motor

Premium-Efficiency,
3-Phase Motor

Capacity (kW)Brake Type

0.4
0.55
0.75
1.1
1.5
2.2
3.0
3.7
5.5
7.5
11
15
18.5 22 30

FB-05A1
FB-1D
FB-1E
FB-1HE
FB-2E
FB-3E
FB-4E
FB-5E
FB-8E
FB-10E
FB-15E
FB-20
FB-30
ESB-250
ESB-250-2
FB-1D
ESB-250
ESB-250-2
FB-1E
FB-2E
FB-3E
FB-5E
FB-8E
FB-10E
FB-15E
FB-20
FB-30
ESB-250
ESB-250-2

37 45
0.4
AF Motor for Inverter

Normal Braking Circuit
for Inverter CircuitPremium-Efficiency,
3-Phase Motor

30 37
0.75
1.5
2.2
3.7
5.5
7.5
11
15
18.5 22 30
37 45

Number of Lead
One-Direction
Wires
Rotation

Page
Plugging
Rotation

Inverter Drive

5

P25

P29

P33

5

P25

P29

P33

P26

P30
P34

8

P27

P31

P28

P32

-

-

5
13

P35
P33

5

P36

P33

-

P34

8
P35

Note 1. Brake type may differ depending on specification. Check the nameplate.
2. These diagrams above are for motors with standard Japanese domestic specifications. Please consult with us for motors with overseas specifications.

22

6. Wiring
These diagrams indicate the standard specifications of the motor wiring and also the symbols for the terminals and lead wires.

■ Without Brake. 3-Phase Power Source
3-Phase Motor
Premium-Efficiency, 3-Phase Motor
3 Lead Wires

R

S

T
MC

V

Motor

U

Control Panel

OLR

W

Motor

6 Lead Wires‒Δ Starting

Direct On-Line Starting

R

R

S

S

MCM
MCΔ
MC
Δ wiring when MCM
acceleration is MCΔ
MCcompleted.
At start
WiringT

T

MC
MC
Control Panel

OLR

OLR

MCΔ

MCM

W1

V2

W2

U2

MC

Motor

U1

V1

W1

V2

Motor

MC : Electromagnetic contactor
OLR : Overload protection device or electronic thermal relay

W2

U2

Motor

V1

Control Panel

Motor

U1

ON
OFF
ON
ON
OFF
OFF

Customer needs to prepare.

- This diagram shows cases for motors with standard Japanese domestic specifications. Please consult with us for motors with overseas
specifications.

23

6. Wiring■ Without Brake, Inverter Drive
3-phase motor
Premium-efficiency, 3-phase motor
AF motor for inverter
Premium-efficiency, 3-phase motor for inverter
3 Lead Wires
RS

6 Lead Wires

T

R

S

T

MCB

V

W

U1

Motor

V2

S

T

V

W

V1

W1

W2

U2

Inverter

Motor

U

R
U

Control Panel

T
W

Motor

S

V

Inverter

Control Panel

R
U

MCB

Motor

11 Lead Wires
AF Motor for Inverter With Axial Flow Fan
Indoor Type, Waterproof 200V Class
Outdoor Type, Waterproof 200/400V ClassRS

Indoor Type, Waterproof 400V Class
R

T

S

T
MCB1

MCB1

U1

V1

W1

V2

W2

U2

Motor

T1

T2

R

MCB2
F

S

T

V

W

U1

V1

W1

V2

W2

U2

U

Inverter

F

U

V

W

Axial ﬂow fan
Thermostat

Motor

MCB : Breaker for wiring
Tr : Transformer capacity 250 – 600VA, secondary voltage 200 – 220VF
: Fuse 3 – 5A

T1

T2

Motor

W

T
W

Control Panel

V

Axial ﬂow fan

SV

Inverter

Motor

U

U

Control Panel

R

MCB2

400V
Tr
200V

Thermostat

customer needs to prepare.

- This diagram shows cases for motors with standard Japanese domestic specifications. Please consult with us for motors with overseas
specifications.
- When using inverter for 400v class 3-phase motor / high-efficiency 3-phase motor, the motor must be insulated.
For AF motor for inverter with axial flow fan (fully enclosed ventilation type) , note the following points.
- Connect electric power to an axial fan as well.
- In the case of 400 V class indoor equipment, the power source voltage for the axial fan is 200 V. In the case of special specifications, theactual product may sometimes differ from the above drawing, so check the manufacturing specifications.
- Connect the fan so that it rotates in the direction indicated on the nameplate.
(When the fan is operating normally, it should blow cooling air from the non-load side to the load side.)- When leaving the motor stopped for a long period, leave the axial fan motor stopped as well.
- As thermostat is installed to the motor, wiring to it.
- Specifications of the thermostat
Terminal codes: T1, T2 or P1, P2
Operation function: Normally closed (b contact)
Working temperature: 135°C (For heat resistance class 155 (F))
Max current: 24 VDC 18 A, 230 VAC 13 A

24

6. Wiring■ With Brake, 3-Phase Power Source, Operates Rotating in One Direction
3-phase motor
Premium-efficiency, 3-phase motor
FB-05A1

FB-1D, FB-1E - FB-5E
5 Lead Wires

R

S

T

R

S

T

MC

MC
Control Panel

Control Panel

OLR

Motor

U

V

1

W

Motor
R

S

4

M N

Rectiﬁer

2

Brake

Motor

Normal Braking Circuit

OLR

U

R

S

2

3

M N

Brake

MC

VR

Control Panel

OLR

Motor

U

V

Motor

W

4

M N

Rectiﬁer

1

2

Brake

MC : Electromagnetic contactor
OLR : Overload protection device or electronic thermal relay
VR : Varistor (for protecting contact points, rectifier, etc.)

Motor

Quick Braking Circuit

OLR

4

Rectiﬁer

TControl Panel

VR

1

W

Motor

T
MC

V

U

V

W

Motor

1

4

M N

Rectiﬁer

2

3

Brake

Customer needs to prepare.

- This diagram shows cases for motors with standard Japanese domestic specifications. Please consult with us for motors with overseas
specifications.
- For brake types, see Table 1-1 on P5.
- Brake action delay time is different between normal and quick braking circuits.						Table 7-2 on P39 shows action delay time. Choose the circuit that matches work requirements.
- Use a quick braking circuit to improve hoisting equipment and stopping precision.
- Use a quick braking circuit When a phase-advancing capacitor is mounted.
- For information on electromagnetic contactors and varistors for quick braking circuits, see Table 6-4 on P37.
- In the case of quick braking circuits, interlock brake circuit’s electromagnetic contractor with the motor’s electromagnetic contractor.

25

6. Wiring■ With Brake, 3-Phase Power Source, Operates Rotating in One Direction
Premium-efficiency, 3-phase motor
FB-8E - FB-15E
8 Lead Wires‒Δ Starting

Direct On-Line Starting

MCM
MCΔ
MC
Δ wiring when MCM
acceleration is MCΔ
MCcompleted.

R S T
R

S

T

wiringat start

MC

OLR

OLR

MCΔ

MCM

Motor

V2

V1

W1

W2

U2

1 2 3 4

M N

Rectiﬁer

Brake

MC

Motor

1

U1 V1 W1 V2 W2 U2

Motor

2 3 4
Rectifier

MCM
MCΔ
MC
Δ wiring when MCM
acceleration is MCΔ
MCcompleted.
wiringat start

R S T
R

S

T

VR
OLR

W1

W2

U2

Rectiﬁer

Brake

Motor

MC : Electromagnetic contactor
OLR : Overload protection device or electronic thermal relay
VR : Varistor (for protecting contact points, rectifier, etc.)

VR

MC

U1 V1 W1 V2 W2 U2

Motor

1

2 3 4
Rectifier

M N
Brake

Motor

V1

V2

M N

MCΔ

MCM

Motor

U1

1 2 3 4

OLR

ON
OFF
ON
ON
OFF
OFF

Control Panel

Control Panel

Quick Braking Circuit

MC

M N
Brake

Motor

U1

Control Panel

Control Panel

Normal Braking Circuit

MC

ON
OFF
ON
ON
OFF
OFF

Customer needs to prepare.

- This diagram shows cases for motors with standard Japanese domestic specifications. Please consult with us for motors with overseas
specifications.
- For brake types, see Table 1-1 on P5.
- Brake action delay time is different between normal and quick braking circuits.						Table 7-2 on P39 shows action delay time. Choose the circuit that matches work requirements.
- Use a quick braking circuit to improve hoisting equipment and stopping precision.
- Use a quick braking circuit When a phase-advancing capacitor is mounted.
- For information on electromagnetic contactors and varistors for quick braking circuits, see Table 6-4 on P37.
- In the case of quick braking circuits, interlock brake circuit’s electromagnetic contractor with the motor’s electromagnetic contractor.

26

6. Wiring■ With Brake, 3-Phase Power Source, Rotating in One Direction
Premium-efficiency, 3-phase motor
FB-20, FB-30
8 Lead Wires‒Δ Starting

Direct On-Line Starting
R

S

T
MC

MC

OLR

OLR

MCM

MCΔ

W1

V2

W2

U2

1 2 3 4 5 6

M N

Rectiﬁer

Brake

Motor

V1

U1 V1 W1 V2 W2 U2Motor

MC : Electromagnetic contactor
OLR : Overload protection device or electronic thermal relay

MC

MC

Motor

U1

ON
OFF
ON
ON
OFF
OFF

Control Panel

Control Panel

Quick Braking Circuit

MCM
MCΔ
MC
Δ wiring when MCM
acceleration is MCΔ
MCcompleted.
wiringat start

R S T

Motor

1 2 3 4 5 6Rectifier

M N

Brake

Customer to prepare.

- This diagram shows cases for motors with standard Japanese domestic specifications. Please consult with us for motors with overseas
specifications.
- For brake types, see Table 1-1 on P5.
- Use with a quick braking circuit. For information on electromagnetic contactors for quick braking circuits, see Table 6-4 on P37.
- In the case of quick braking circuits, interlock brake circuit’s electromagnetic contractor with the motor’s electromagnetic contractor.
- Shipped with a short circuit plate connecting rectifier terminals 5 and 6. Remove the short circuit plate when wiring.

27

6. Wiring■ With Brake, 3-Phase Power Source, Operates Rotating in One Direction
Premium-efficiency, 3-phase motor
ESB-250, ESB-250-2
8 Lead Wires‒Δ Starting

Direct On-Line Starting
R

R

S

S

T

T
MC
MC

MC
OLR
OLR

MC

1 2 3 4 5 6Rectiﬁer

V1

4

Brake
ブレーキ

Motor
モータ
R

R

S
S

4 3
3

1 2 3 4 5 6
1 Rectifier
2 3 4 5 6

整流器

4 3
4 3

Brake
ブレーキ

Motor
モータ

MC

OLR
OLR

400V

Tr

ON
OFF
ON
ON
OFF
OFF

MC

OLR

OLR

F

Tr

MC
MC
M M

200V
F
200V級

1 2 3 4 5 6
1 2 Rectiﬁer
3 4 5 6
整流器

Motor
モータ

Brake
ブレーキ

MC
MC

MC
MC
Tr Tr F F
400V級 200V
200V級
400V

1 12 23 34 45 56 6

整流器
RectifierU1 U1V1 V1W1W1
V2 V2
W2W2
U2 U2

モータ
Motor

MC : Electromagnetic contactor
OLR : Overload protection device or electronic thermal relay
Tr : Transformer capacity 250 – 600VA, secondary voltage 200 – 220VF
: Fuse 3 – 5A

4 43 3

ブレーキ
Brake

Motor

V1 W1
V1 W1
V2 W2 U2
V2 W2 U2

4 3
4 3

Motor

U1

MC
MC
ΔΔ

Control Panel

400V級

MC

Control Panel

Quick Braking Circuit 400V Class

MCM
MCΔ
MC
Δ wiring when MCM
acceleration is MCΔ
MCcompleted.
wiringat start

R RS ST T

MC

U1

MC
MC

U1 V1 W1 V2 W2 U2U1 V1 W1 V2 W2 U2

T
T

MC
MC

Motor

W1
U1 V1 W1V2 W2 U2
V2 W2 U2

MCΔ
MCΔ

Motor

1 2 3 4 5 6
整流器

MCM
MCM

ON
OFF
ON
ON
OFF
OFF

Control Panel

Control Panel

Quick Braking Circuit 200V Class

OLR
OLR

U1

MCM
MCΔ
MC
Δ wiring when MCM
acceleration is MCΔ
MCcompleted.
wiringat start

R S T
R S T

Customer needs to prepare.

- This diagram shows cases for motors with standard Japanese domestic specifications. Please consult with us for motors with overseas
specifications.
- For brake types, see Table 1-1 on P5.
- Use with a quick braking circuit. For information on electromagnetic contactors for quick braking circuits, see Table 6-4 on P37.
- In the case of quick braking circuits, interlock brake circuit’s electromagnetic contractor with the motor’s electromagnetic contractor.
Rectifiers are external to the main unit. Rectifiers are made for indoor use. Install in an area where they will not come into contact withwater, etc.
- Brake unit is for 200V class. For 400V class power sources, prepare a 400V/200V transformer.

28

6. Wiring■ With Brake, 3-Phase Power Source, Plugging Operation
3-phase motor
Premium-efficiency, 3-phase motor
FB-05A1

FB-1D, FB-1E - FB-5E
5 Lead Wires

R

S

R

T

OLR

T

Normalrotation

ReverserotationControl Panel

ReverserotationControl Panel

OLR

U

V

W

Motor
R

S

4

M N

Rectiﬁer

1

2

Brake

Motor

Motor

Normal Braking Circuit

Normalrotation

S

U

V

Motor
R

T

MC
VR

OLR

S

4

M N

Rectiﬁer

2

3

Brake

T

Normalrotation

Reverse MC
rotation

VR

OLR

V

Motor

W

4

M N

Rectiﬁer

1

2

Brake

Electromagnetic contactor for normal and reverse rotation
MC : Electromagnetic contactor
OLR : Overload protection device or electronic thermal relay
VR : Varistor (for protecting contact points, rectifier, etc.)

Motor

Motor

U

Control Panel

ReverserotationControl Panel

Quick Braking Circuit

Normalrotation

1

W

U

V

W

Motor

4

M N

Rectiﬁer

Brake

1

2

3

Customer needs to prepare.

- This diagram shows cases for motors with standard Japanese domestic specifications. Please consult with us for motors with overseas
specifications.
- For brake types, see Table 1-1 on P5.
- Brake action delay time is different between normal and quick braking circuits.						Table 7-2 on P39 shows action delay time. Choose the circuit that matches work requirements.
- Use a quick braking circuit to improve hoisting equipment and stopping precision.
- Use a quick braking circuit When a phase-advancing capacitor is mounted.
- For information on electromagnetic contactors and varistors for quick braking circuits, see Table 6-4 on P37.
- For plugging operations using a quick braking circuit, interlock the brake circuit’s electromagnetic contactors with the motor’s normal
and reverse rotation electromagnetic contactors.

29

6. Wiring■ With Brake, 3-Phase Power Source, Plugging Operation
Premium-efficiency, 3-phase motor
FB-8E - FB-15E
8 Lead Wires‒Δ Starting

Direct On-Line Starting

MCM
MCΔ
MC
Δ wiring when MCM
acceleration is MCΔ
MCcompleted.

R S T
T

OLR

MC Δ

MC M

Motor

V1

W1

V2

W2

U2

Rectiﬁer

Brake

1

U1 V1 W1 V2 W2 U2

Motor

Motor

2 3 4
Rectifier

MCM
MCΔ
MC
Δ wiring when MCM
acceleration is MCΔ
MCcompleted.

R S T
T

VR

OLR

MC Δ MC

MC M

Motor

V2

V1

W1

W2

U2

1 2 3 4

M N

Rectiﬁer

Brake
U1 V1 W1 V2 W2 U2

Motor

Electromagnetic contactor for normal and reverse rotation
MC : Electromagnetic contactor
OLR : Overload protection device or electronic thermal relay
VR : Varistor (for protecting contact points, rectifier, etc.)

1

Motor

2 3 4
Rectifier

M N
Brake

Motor

U1

MC

VR

Y

OLR

ON
OFF
ON
ON
OFF
OFF

Control Panel

Control Panel

Reverse rotation

Quick Braking Circuit

Normal rotationMCwiringat start

Reverse rotation

S

Normal rotation

R

M N
Brake

Motor

U1

M N

Y

MC
1 2 3 4

ON
OFF
ON
ON
OFF
OFF

Control Panel

Control Panel

Reverse rotation

Normal rotation

Normal Braking Circuit

OLR

Reverse rotation

S

Normal rotationRwiringat start

Customer needs to prepare.

- This diagram shows cases for motors with standard Japanese domestic specifications. Please consult with us for motors with overseas
specifications.
- For brake types, see Table 1-1 on P5.
- Brake action delay time is different between normal and quick braking circuits.						Table 7-2 on P39 shows action delay time. Choose the circuit that matches work requirements.
- Use a quick braking circuit to improve hoisting equipment and stopping precision.
- Use a quick braking circuit When a phase-advancing capacitor is mounted.
- For information on electromagnetic contactors and varistors for quick braking circuits, see Table 6-4 on P37.
- For plugging operations using a quick braking circuit, interlock the brake circuit’s electromagnetic contactors with the motor’s normal
and reverse rotation electromagnetic contactors.

30

6. Wiring■ With Bbrake, 3-Phase Power Source, Plugging Operation
Premium-efficiency, 3-phase motor
FB-20, FB-30
8 Lead Wires‒Δ Starting

Direct On-Line Starting

Control Panel

Reverse rotation

OLR

W1

V2

W2

U2

1 2 3 4 5 6

M N

Rectiﬁer

Brake
U1 V1 W1 V2 W2 U2

Motor

Electromagnetic contactor for normal and reverse rotation
MC : Electromagnetic contactor
OLR : Overload protection device or electronic thermal relay

MC

MC Δ

MC M

Motor

1 2 3 4 5 6Rectifier

M N

Motor

V1

ON
OFF
ON
ON
OFF
OFF

OLR

MC
U1

MCM
MCΔ
MC
Δ wiring when MCM
acceleration is MCΔ
MCcompleted.
wiringat start

Control Panel

Motor

Quick Braking Circuit

Normal rotation

MC

R S T

Y

T

Reverse rotation

S

Normal rotation

R

Brake

Customer needs to prepare.

- This diagram shows cases for motors with standard Japanese domestic specifications. Please consult with us for motors with overseas
specifications.
- For brake types, see Table 1-1 on P5.
- Use with a quick braking circuit. For information on electromagnetic contactors for quick braking circuits, see Table 6-4 on P37.
- Shipped with a short circuit plate connecting rectifier terminals 5 and 6. Remove the short circuit plate when wiring.
- Interlock the brake circuit’s electromagnetic contactor with the motor’s electromagnetic contactor.

31

6. Wiring■ With Brake, 3-Phase Power Source, Plugging Operation
Premium-efficiency, 3-phase motor
ESB-250, ESB-250-2
8 Lead Wires‒Δ Starting

Direct On-Line Starting
T

Reverse rotation

Normal rotation

OLR

MCM

MCM
MCΔ
MC
Δ wiring when MCM
acceleration is MCΔ
MCcompleted.
wiringat start

OLR

MC

Rectiﬁer

U2

4

3

Brake

RectifierU1 V1 W1 V2 W2 U2

4 3

Motor

Brake

Motor

T

Reverse rotation

Normal rotation

OLR

MCM

MCM
MCΔ
MC
Δ wiring when MCM
acceleration is MCΔ
MCcompleted.
wiringat start

ON
OFF
ON
ON
OFF
OFF

MC

MCΔ

MC
Tr

400V

F

200V
1 2 3 4 5 6Rectiﬁer
W1

W2

U2

4

3

Brake

Motor

Electromagnetic contactor for normal and reverse rotation
MC : Electromagnetic contactor
OLR : Overload protection device or electronic thermal relay
Tr : Transformer capacity 250 – 600VA, secondary voltage 200 – 220VF
: Fuse 3 – 5A

400V

200V

1 2 3 4 5 6RectifierU1 V1 W1 V2 W2 U2

4 3

Motor

Brake

Motor

V1

V2

Motor

U1

F

Tr

Control Panel

OLR

Control Panel

Quick Braking Circuit 400V Class

MC

R S T

Reverse rotation

S

Normal rotation

R

Motor

W1

W2

1 2 3 4 5 6

Motor

V1

V2

Control Panel

1 2 3 4 5 6

U1

ON
OFF
ON
ON
OFF
OFF

MC

MCΔ

Control Panel

Quick Braking Circuit 200V Class

MC

R S T

Reverse rotation

S

Normal rotation

R

Customer needs to prepare.

- This diagram shows cases for motors with standard Japanese domestic specifications. Please consult with us for motors with overseas
specifications.
- For brake types, see Table 1-1 on P5.
- Use with a quick braking circuit. For information on electromagnetic contactors for quick braking circuits, see Table 6-4 on P37.
Rectifiers are external to the main unit. Rectifiers are made for indoor use. Install in an area where they will not come into contact withwater, etc.
- Brake unit is for 200V class. For 400V class power sources, prepare a 400V/200V transformer.
- Interlock the brake circuit’s electromagnetic contactor with the motor’s electromagnetic contactor.

32

6. Wiring■ With Brake, Inverter Drive
3-phase motor
Premium-efficiency, 3-phase motor
AF motor for inverter
Premium-efficiency, 3-phase motor for inverter
FB-05A1

FB-1D, FB-1E - FB-5E
5 Lead Wires

R

S

T

R

S

T

MCB

U

V

W

U

V

W

MC

R

S

T

U

V

W

U

V

W

Inverter

MC

Motor

1

Motor

R

S

4

M N

Rectiﬁer

2

Brake

Motor

T

Control Panel

S

Inverter

Control Panel

Normal Braking Circuit

R

MCB

Motor

T

R

S

W

U

V

W

Motor

M N

Brake

MC

1

2

VR

4

M N

Rectiﬁer

Brake

MC : Electromagnetic contactor
MCB : Breaker for wiring
VR : Varistor (for protecting contact points, rectifier, etc.)

R

S

T

U

V

W

U

V

W

Inverter

Motor

MC

1

2

3

VR

4

M N

Rectiﬁer

Brake

Motor

V

3

Control PanelU

Inverter

Motor

T

2

MCB

Control Panel

Quick Braking CircuitS

4

Rectiﬁer

T

MCB

R

1

Customer needs to prepare.

- This diagram shows cases for motors with standard Japanese domestic specifications. Please consult with us for motors with overseas
specifications.
- For brake types, see Table 1-1 on P5.
- When using inverter for 400v class 3-phase motor / high-efficiency 3-phase motor, the motor must be insulated.
- Brake action delay time is different between normal and quick braking circuits.						Table 7-2 on P39 shows action delay time. Choose the circuit that matches work requirements.
- Use a quick braking circuit to improve hoisting equipment and stopping precision.
- Use a quick braking circuit When a phase-advancing capacitor is mounted.
- For information on electromagnetic contactors and varistors for quick braking circuits, see Table 6-4 on P37.
- Always use the inverter’s power source side for the brake power source.
- Match the opening and closing of the brake circuit’s electromagnetic contactor to the timing of the inverter control.

33

6. Wiring■ With Brake, Inverter Drive
Premium-efficiency, 3-phase motor
Premium-efficiency, 3-phase motor for inverter
FB-8E - FB-15E

FB-20, FB-30
8 Lead Wires

R

S

T
MCB

T

U

V

W

U1

V1

W1

V2

W2

U2

MC

1

4

M N

Rectiﬁer

2

3

Brake

Motor

S

Inverter

Control Panel

Normal Braking Circuit

R

Motor
R

S

T

R

S

T

MCB

V

W

U1

V1

W1

W2

U2

V2

1

2

3

VR

4

M N

Rectiﬁer

Brake

S

T

U

V

W

U1

V1

W1

W2

U2

Inverter

V2

MC

1

2

3

4

5 6

Rectiﬁer

M N

Brake

Motor

Motor

MC : Electromagnetic contactor
MCB : Breaker for wiring
VR : Varistor (for protecting contact points, rectifier, etc.)

R

Motor

U

MC

Control Panel

T

Motor

S

Inverter

Control Panel

Quick Braking Circuit

R

MCB

Customer needs to prepare.

- This diagram shows cases for motors with standard Japanese domestic specifications. Please consult with us for motors with overseas
specifications.
- For brake types, see Table 1-1 on P5.
- Brake action delay time is different between normal and quick braking circuits.						Table 7-2 on P39 shows action delay time. Choose the circuit that matches work requirements.
- Use a quick braking circuit to improve hoisting equipment and stopping precision.
- Use a quick braking circuit When a phase-advancing capacitor is mounted.
- For information on electromagnetic contactors and varistors for quick braking circuits, see Table 6-4 on P37.
- Use with a quick braking circuit for FB-20 or FB-30.
- FB-20, 30 are shipped with a short circuit plate connecting terminals 5 and 6. Remove the short circuit plate when wiring.
- Always use the inverter’s power source side for the brake power source.
- Match the opening and closing of the brake circuit’s electromagnetic contactor to the timing of the inverter control.

34

6. Wiring■ With Brake, Inverter Drive
Premium-efficiency, 3-phase motor
Premium-efficiency, 3-phase motor for inverter
ESB-250, ESB-250-2
8 Lead Wires
R

S

T

R

S

T

U

V

W

InverterMC
1 2 3 4 5 6Rectiﬁer

U1
V2

V1

W1

W2

U2

4

3

Brake

Control Panel Motor

Quick Braking Circuit 200V Class

MCB

Motor
R

S

T

400V
R

S

T

U

V

W

Tr

F

200V

Inverter

Control PanelMC
1 2 3 4 5 6Rectiﬁer

U1

V1

W1

V2

W2

U2

4

3

Brake

Motor

Quick Braking Circuit 400V Class

MCB

Motor

MC : Electromagnetic contactor
MCB : Breaker for wiring
Tr : Transformer capacity 250 – 600VA, secondary voltage 200 – 220VF
: Fuse 3 – 5A

Customer needs to prepare.

- This diagram shows cases for motors with standard Japanese domestic specifications. Please consult with us for motors with overseas
specifications.
- For brake types, see Table 1-1 on P5.
- Use with a quick braking circuit. For information on electromagnetic contactors for quick braking circuits, see Table 6-4 on P37.
Rectifiers are external to the main unit. Rectifiers are made for indoor use. Install in an area where they will not come into contact withwater, etc.
- Brake unit is for 200V class. For 400V class power sources, prepare a 400V/200V transformer.
- Always use the inverter’s power source side for the brake power source.
- Match the opening and closing of the brake circuit’s electromagnetic contactor to the timing of the inverter control.

35

6. Wiring■ With Brake, Inverter Drive
AF motor for inverter
ESB-250, ESB-250-2
13 Lead Wires
AF Motor for Inverter with Axial Flow Fan
Quick Braking Circuit
Indoor Type, Waterproof 200V Class
Indoor Type 200V Class

R

S

T
MCB1

MCB2

S

T

V

W

InverterMC
1 2 3 4 5 6Rectiﬁer

U

VW

Axial ﬂow fan

V1

W1

V2

W2

U2

S

T

R

Motor

T1

4

T2

3

Brake

Thermostat

MCB1

F

U

S

T

V

W

InverterMCF

1 2 3 4 5 6Rectiﬁer

W

U1

V1

W1

V2

W2

U2

Motor

T1

T2

Thermostat

4

3

Brake

MC : Electromagnetic contactor
MCB : Breaker for wiring
Tr : Transformer capacity 250 – 600VA, secondary voltage 200 – 220VF
: Fuse 3 – 5A

S

T
MCB1

F

Tr

400V
R

MCB2

U

S

T

V

W

Inverter

200VMC
1 2 3 4 5 6Rectiﬁer

U

VW

Axial ﬂow fan

U1

V1

W1

V2

W2

U2

Motor

T1

T2

4

3

Brake

Motor

V

Motor

U

Axial ﬂow fan

R

Control Panel

R

MCB2

Control Panel

Quick Braking Circuit,
Indoor Type 400V Class

400V
Tr
200V

Quick Braking Circuit,Outdoor Type 400V Class

U1

Control Panel Motor

R
U

Thermostat

Customer needs to prepare.

- This diagram shows cases for motors with standard Japanese domestic specifications. Please consult with us for motors with overseas
specifications.
- For brake types, see Table 1-1 on P5.
- Use with a quick braking circuit. For information on electromagnetic contactors for quick braking circuits, see Table 6-4 on P37.
Rectifiers are external to the main unit. Rectifiers are made for indoor use. Install in an area where they will not come into contact withwater, etc.
- Brake unit is for 200V class. For 400V class power sources, prepare a 400V/200V transformer.
- Always use the inverter’s power source side for the brake power source.
- Match the opening and closing of the brake circuit’s electromagnetic contactor to the timing of the inverter control.
For AF motor for inverter with axial flow fan (fully enclosed separate ventilate type), note the following points.
- Connect electric power to an axial fan as well.
- In the case of 400 V class indoor equipment, the power source voltage for the axial fan is 200 V.
- In the case of special specifications, the actual product may sometimes differ from the above drawing, so check the manufacturing
specifications.
- Connect the fan so that it rotates in the direction indicated on the nameplate.
(When the fan is operating normally, it should blow cooling air from the non-load side to the load side.)- When leaving the motor stopped for a long period, leave the axial fan motor stopped as well.
- A thermostat has been installed, so connect the wiring to it.
- Specifications of the thermostat
Terminal codes: T1, T2 or P1, P2
Operation function: Normally closed (b contact)
Working temperature: 135°C (For heat resistance class 155 (F))
Max current: 24 VDC 18 A, 230 VAC 13 A

36

6. Wiring
6-6 Points to Note When Using a Quick Braking Circuit
When using brakes with quick braking circuits, take note of the following items.
- Connect a varistor (protection element) to protect the quick braking circuit contact points from surge Voltage generated by the brakeaction.
- Wire the quick braking circuit contact points to secondary side contacts of the brake power source. If not, contact points might not beprotected.
- For information on using an alternating current electromagnetic contactor as contact points for quick braking circuits, see Table 6-4.
If multiple contact points are required, note the following issues.
- Connect electromagnetic contactor contact points in serial. (See Figure 6-3)
- Connect the varistor (VR) as close to the unit as possible. (See Figure 6-3)
Table 6-4 Nomenclature for Parts Recommended When Using a Quick Braking Circuit (When Using an Alternating Current Electromagnetic Contactor).
Recommended Contactor Nomenclature
AC
Voltage

Brake Type

Serial contact
points: 1(0.7A)

S-N11
or
S-N12

Serial contact
points: 1(1.2A)

Minimum
0.5A
Minimum
0.7A

SC-05

Serial contact
points: 2(3.0A)

S-N11
or
S-N12

Serial contact
points: 2(3.0A)

Minimum
1.5A

SC-05

S-N18

FB-10E
FB-15E
FB-20
FB-30
ESB-250
ESB-250-2

Serial contact
points: 3(4.0A)

SC-5-1

Serial contact
points: 3
(10A)

S-N20
or
S-N21

FB-05A1

SC-05

Serial contact
points: 2(0.4A)

S-N11
or
S-N12

FB-1D
FB-1E
FB-1HE
FB-2E
FB-3E
FB-4E
FB-5E
FB-8E

FB-1D
FB-1E
FB-1HE
FB-2E
FB-3E
FB-4E
FB-5E

400V
440V

Made by Mitsubishi
Electric Corporation

SC-05

FB-05A1

200V
220V

Made by Fuji Electric FA
Components &Systems Co., Ltd.

SC-05

Serial contact
points: 3(2.0A)FB-8E
FB-10E
FB-15E
FB-20
FB-30

-

-

Recommended Varistor(For Protecting Contactor Contact Points)
Maximum
Allowable Varistor
Power
Varistor Type
Circuit
VoltageRatingVoltage

Recommended
Contactor
Contact Point
Capacity(DC-13 Class)

TND07V-471KB00AAA0

0.25W

TND10V-471KB00AAA0

0.4W

TND14V-471KB00AAA0

AC300V

470V(423 517V)

0.6W

Serial contact DC
110V Minimum
points: 3
3.0A(5.0A)
Minimum
5.5A
Serial contact
points: 3
Minimum(10A)
4.5A

TND20V-471KB00AAA0

1.0W

Serial contact
points: 2(0.5A)

Minimum
0.3A

TND10V-821KB00AAA0

0.4W

Minimum
0.5A

TND14V-821KB00AAA0

0.6W

S-N11
or
S-N12

Serial contact
points: 3(2.0A)

S-N18

Serial contact
points: 3(2.0A)

Minimum
1.5A

S-N20
or
S-N21

Serial contact
points: 3(4.0A)

Minimum
3.0A
Minimum
2.5A

DC
220V

Minimum
1.0A

AC510V

820V(738 902V)

TND20V-821KB00AAA0

1.0W- This recommended contactor nomenclature is for Fuji electric FA Components & Systems Co., Ltd. and Mitsubishi electric Corporation
contactors. products from other manufacturers are Also allowable If they have equivalent capabilities.
- Recommended contactor contact point capacity indicates the case where durability regarding electronic opening and closing (servicelife) is approximately 2 million times (for FB-30, ESB-250, ESB-250-2 approximately 1 million times).
- Of the recommended contactors, the Mitsubishi Electric Corporation S-N11 has one auxiliary contact point; the S-N18 has none. Please
note that these 2 contractors are not usable when two or more auxiliary contact points are required for inverter drive and so on. (Other
connectors in Table 6-4 have two or more auxiliary contact points.)- This recommended varistor nomenclature is for Nippon Chemi-Con Corporation varistors. Products from other manufacturers are also
allowable if they have equivalent capabilities.
- In the FB-20, 30, ESB-250 and 250-2, a varistor for protecting the connector contact points is built in to the rectifier.
Figure 6-3 Examples of Contact Point Connections with Quick Braking Circuits
For FB-05A1〜FB-15E

MC

note

U phaseFor FB-20、FB-30、ESB-250、ESB-250-2

VR

MCBrake terminal N

U phaseRectiﬁer terminal 2
Serial contact points: 1

VR

note

Brake terminal N

Rectiﬁer terminal 2
Serial contact points: 2

MC

VR

note

U phaseBrake terminal N

MCRectiﬁer terminal 5 Rectiﬁer terminal 6

Rectiﬁer terminal 2
Serial contact points: 3

For inverter drives, connect to the L1 phase or R phase (power source side).

37

Serial contact points: 3

Common

7. Operation
DANGER- Do not approach or touch rotating parts (output shaft, etc.) during operation; otherwise loose clothing may became caught
in these rotating parts and cause serious injury or death.
- When the power supply is interrupted, be sure to turn off the power switch. Unexpected resumption of power may cause
electric shock, personal injury, or damage to the equipment.
- Do not operate the unit with the terminal box Cover removed. Return the terminal box Cover to the original position after
maintenance, otherwise, electric shock may result.
- Do not operate the machine while the brake is released by the manual brake release bolt; otherwise, falling, going out ofcontrol, or damage to the equipment may result.

CAUTION- Do not put fingers or foreign objects into the opening of the product; otherwise, electric shock, injury, fire, or damage to theequipment may result.
- The gearmotor or reducer becomes very hot during operation. Be careful not to touch with hands or body. Otherwise, burns
may result.
- Do not loosen the oil filler plug while the the gearmotor or speed reducer is operating. Otherwise, hot oil may fly out, resulting a burn.
- If any abnormality occurs during operation, stop operation immediately; otherwise, electric shock, personal injury, or fire may
result.
- Do not operate the unit in excess of the load rating; otherwise, personal injury, or damage to the equipment may result.

7-1 Items to Check Before Operation- Oil is removed from oil lubrication parts before shipment from our factory. Supply recommended oil before use. (See P41 - 43)- Grease is filled before shipment from the factory.
After installation and wiring are completed, check the following items before operating.
- is the wiring correct?
Center of oil gauge- is the unit properly coupled with the driven machine?
- are Mounting bolts tightened firmly?
- is the direction of rotation as required?
- I n the case of the oil lubricating part, is the oil level at the center of the oil gauge (Fig. 7-1)
when the gearmotor or reducer is stopped?
Upon completing the above checks, run in the motor under no load, and gradually apply
a load to it. At this time, check the items in Table 7-1.

Figure 7-1 Oil Gauge

Notes: 1. E ven if you align the oil level with the center of the oil gauge, the oil level may sometimes fall when the gearmotor or reducer is
stopped, due to air leakage from the inside while it is running. For this reason, be sure to check the oil level after a test run. If the oillevel is too low, replenish the lubricating oil.
2. Before checking the oil level, wait for a while after stopping the gearmotor or reducer. You cannot check the oil level either during
operation or immediately after the end of operation.

38

7. Operation Common
7-2 Items to Check During Operation
Table 7-1 Items to Check During Operation
Does abnormal sound or vibration
generate?

- Is the housing deformed because the installation surface is not flat?
- Is Insufficient rigidity of the installation base generating resonance?
- Is the shaft center aligned with the driven machine?
- Is the vibration of the driven machine transmitted to the gearmotor or reducer?

Is the surface temperature abnormally high?

- Does the voltage rise or drop substantially?
- Is the ambient temperature too high?
- Does the current flowing to the gearmotor exceed the rated current shown on the nameplate?

If any abnormalities are found, immediately stop operation and contact the nearest authorized maintenance shop.

7-3 Brake Torque and Activation Delay TimeThe table below shows brake types with standard specification, their brake torque, and their relationship to brake activation delay
time.
Table 7-2 Brake Torque and Activation Delay Time
Motor Capacity (kW)

Brake
Type

FB-05A1
FB-1D
FB-1E
FB-1HE
FB-2E
FB-3E
FB-4E
FB-5E
FB-8E
FB-10E
FB-15E
FB-20
FB-30

3-Phase
Motor

0.4
0.55
－
－
－
－
－
－
－
－
－
－
－
－
－
－

ESB-250(Horizontal
type)

－

ESB-250-2(Vertical type)－

Brake Activation Delay Time (sec)Normal Braking
Brake Torque
Circuit for Inverter
NormalPremium(Dynamic
PremiumCircuit
Braking Circuit
AF Motor for
Efficiency,
Quick Braking
Friction Torque)
Efficiency,(Simultaneous Normal Braking
Inverter
3-Phase Motor
Circuit(N･m)
3-Phase Motor
Turn-Off Circuit) Circuit (Separate
for Inverter
Turnoff Circuit)
0.2
4.0
0.1 - 0.15
0.03 - 0.07
0.01 - 0.015
－
－
0.4
7.5
0.2 - 0.3
0.1 - 0.15
0.01 - 0.02
－
－
0.75
0.75
7.5
0.25 - 0.45
0.15 - 0.25－
1.1
11
0.45 - 0.65
0.25 - 0.35
0.01 - 0.03
－
－
1.5
1.5
15
0.35 - 0.55
0.15 - 0.25
－
2.2
2.2
22
0.75 - 0.95
0.4 - 0.5－
3.030
0.65 - 0.85
0.3 - 0.4
－
－
3.7
3.7
40
1.1 - 1.3
0.4 - 0.5－
0.02 - 0.04
5.5
5.5
55
1.0 - 1.2
0.3 - 0.4
－
7.5
7.5
80
1.8 - 2.0
0.6 - 0.7
－
11
11
110
1.6 - 1.8
0.5 - 0.6
－
15
15
150
0.06 - 0.14
－
－
－
18.5
18.5
190
－
22
22
220
0.03 - 0.11
－
－
－
30
30
200
－
Hori212zontal30－－
Verti195
cal
Hori266
zontal
37
37
37
0.065
－
－
Verti244cal
Hori320
zontal45
45－
Verti292
cal

Notes: 1. Brake type may differ depending on specification. Check the nameplate.
2. B rake torque will change according to operating environment, operating conditions, the condition of the friction surface, etc. In
particular, brake torque may not be at the prescribed level for initial operation, and after a long period of inactivity. In such a caseturn the brake on and off under as light load as possible to contact the brake’s friction surfaces.
3. Brake activation delay time will change according to the brake’s wiring circuit. Select the optimum circuit for the application.

39

Common

8. Daily Inspection and Maintenance
DANGER- Do not handle the unit when cables are energized. Be sure to turn off the power when working on the unit; otherwise, electric
shock may result.
- Do not approach or touch any rotating parts (output shaft, etc.) while conducting maintenance during operation or the inspectionof the unit, loose clothing may become caught in these rotating parts and cause serious injury or death.
- In the case of explosion proof motor , customers must not disassemble or modify; otherwise, explosion, ignition, an electric shock,injury, a fire, or damage to the equipment may occur.
- In the case of explosion proof motor , The lead-in condition of explosion proof motor shall conform to the facility’s regulations, electrical codes, and explosion proofing standard, as well as the maintenance manual; Additionally, do not open the terminal box coverwhile operating. Otherwise, explosion, ignition, an electric shock, injury, a fire, or damage to the equipment may occur.
- Do not operate the machine while the brake is released by the manual brake release bolt; otherwise, falling, going out of control,
or damage to the equipment may result.

CAUTION- Do not put fingers or foreign objects into the opening of the gearmotor or reducer; otherwise, electric shock, injury, fire, or damage
to the equipment may result.
- The gearmotor or reducer becomes very hot during operation. Do not touch the product with bare hands. Otherwise, burns may
result.
- Do not touch the terminals when measuring insulation resistance; otherwise, electric shock may result.
- Do not operate the unit without a safety cover (removed during inspection) to shield rotating parts; otherwise loose clothing may
became caught in these rotating parts and cause serious injury or death.
- Promptly observe and repair any abnormalities during operation according to instructions in this maintenance manual. Do not
operate until the cause of the abnormality is understood, and the abnormality is repaired.
- When replacing the lubricating oil, follow the instructions in this manual. Be sure to use our recommended type of oil.
- Before installing, moving or transporting the equipment, be sure to drain off the lubricating oil. If you move the equipment withlubricating oil is inside it, the lubricating oil may flow out from the oil filler plug.
-Dot not replace the lubricating oil either during operation or immediately after the end of operation. Otherwise, burns may result.
- Do not operate damaged gearmotors or reducers; otherwise, injury, fire, or damage to the equipment may result.
- We cannot assume any responsibility for damage or injury resulting from an unauthorized modification by a customer, as it isoutside the scope of the warranty.
- Dispose of the product or lubricating oil as general industrial waste.
- In the case of explosion proof motor When measuring the insulation resistance of explosion proof motor, confirm that there is nogas or explosive vapor in the vicinity, in order to prevent explosion or ignition.
- Changing brake linings requires experience. Consult with the nearest authorized maintenance shop.				
Brake torque will change with operation environment and conditions, the condition of the friction surface, and other factors. In
particular, brake torque may not be at the prescribed level for initial operation, and after a long period of inactivity. In such a caseturn the brake on and off under as light load as possible to contact the brake’s friction surfaces.

8-1 Daily Inspection
Make certain to carry out daily inspection in accordance with Table 8-1. Lack of inspections is a source of trouble.
Table 8-1 Daily Inspection
Inspection Item
Current value
Noise
Vibration
Surface temperature
Oil level( Oil lubrication parts )Contamination of the
lubricating oil
Oil or grease leaks
Mounting bolts
Chain, V-beltInspection DetailIs the current no greater than the rated value shown on the nameplate?
Are there unusual noises, or are there extreme changes in the noises?
Is there abnormally large vibration? Are there extreme changes?
Is surface temperature unusually high? Are there extreme changes?
T emperature rises during operation will differ according to model and type. However, in case the difference
between the gear unit surface temperature and the environment temperature is approximately 60°C, there isno particular trouble if fluctuation is slight.

))- Is the oil level at the center of the oil gauge when the gearmotor or reducer is stopped?
Is the lubricating oil contaminated?
You can check the lubricating oil for contamination not only by sampling the oil when the gearmotor or
reducer is stopped, but also by using the oil gauge.
If the oil gauge is found to be contaminated, replace the oil gauge quickly.
Is grease or oil leaking from the gear unit? Are the oil seal sliding surfaces corroded?
Are the mounting bolts loose?
Are the chain or V-belt loose?

- If any problems are found in a daily inspection, follow "9. Troubleshooting" (on P71and 72) to take appropriate actions. If these actions
do not solve the issue, immediately contact the nearest authorized maintenance shop.

40

8. Daily Inspection and Maintenance Common
8-2 Checking lubrication Method
Refer to the section concerned in this manual and be sure to carry out maintenance. lack of maintenance is a source of trouble.

(1) Standard lubrication method (when the motor is being driven at the standard input rotational speed)
Confirm the lubricating method used in the gear section of the model that you are using in Table 8-2.
Table 8-5 shows the sections where the maintenance method is indicated, for each lubricating method.
Table 8-2 Standard Lubrication Method
Frame Size72, 82, 92, 95, 102, 112, 115
72DA, 82DA, 92DA, 102DA, 112DA

Lubrication
Oil bath lubrication
Output part: oil bath type lubrication; Input part (CYCLO reducer): Long-life grease lubrication

Note: The output shaft bearing is filled with grease.

8-3 Oil Supply and Change for Oil Lubrication Parts(1) Oil change interval
Table 8-3 Oil Inspection and Change Interval
Oil supply
OilchangeFirst time
Secondtime andafter

Change Interval
At the time of purchase
After 500 hours or 6 months whichever comes earlier
After 5,000 hours or a year whichever comes earlier

Duration of Operation−−0 – 35°C indoors, etc.
Outdoors, or other high temperature locationthat cannot be maintained within 0 – 35°C

After 2,500 hours or 6 months whichever comes earlier- If the ambient temperature is high, or changes abruptly, and also there is corrosive gas in the vicinity, the rate of deterioration of the oilwill increase. In this case, consult with the manufacturer of the lubricating oil.

(2) Recommended Oil
Make sure to use the recommended oil shown in Table 8-4.
Table 8-4 Recommended Lubricants (Equivalent to SP type industrial high-pressure gear oil or JIS K2219)
Ambient
Temparaure
°C

COSMO

ENEOS

IDEMITSU

Shell-10 – 25COSMOGEARSE150

BONNOCTS
150

DaphneSuper
Gear Oil
150

Shell Omala
S2 G
150

Spartan EP
150

10 – 40COSMO GEARSE
220

BONNOCTS
220

DaphneSuper
Gear Oil
220

Shell Omala
S2 G
220

30 – 50COSMO GEARSE320

BONNOCTS
320

DaphneSuper
Gear Oil320

Shell Omala
S2 G
320

Mobil

41

Gulf

CALTEXbp

Mobilgear
600 XP
150

Gulf EP
Lubricant HD
150

Meropa150

Energol
GR-XP
150

Spartan EP
220

Mobilgear
600 XP
220

Gulf EP
Lubricant HD
220

Meropa220

Energol
GR-XP
220

Spartan EP
320

Mobilgear
600 XP
320

Gulf EP
Lubricant HD
320

Meropa320

Energol
GR-XP
320

Common

8. Daily Inspection and Maintenance(3) Amount of oil
Table 8-5 shows approximate quantity of necessary oil. There are differences in the actual oil feed quantity among machines becauseof the difference in structure and so on. Even if the feed quantity of lubricating oil is the same as that indicated in Table 8-5, the actual
quantity of oil in the product may be excessive or insufficient. For this reason, be sure to confirm that the oil level corresponds to thecenter position of the oil gauge.
Table 8-5 Approximate Quantity of Oil (L)Hollow Shaft Mount, Solid Shaft, Flange Type
Frame Size72, 72DA
82, 82DA
92, 95, 92DA
102, 105, 102DA
112, 115, 112DA

Y1
F1
G1
1.9
3.4
4.1
6.7
9.5

Y2
F2
G2
8.3
11.5
15.8
23.0
33.2

Mounting Position
Y3
Y4
F3
F4
G3
G4
5.7
4.8
7.6
6.8
10.2
7.9
14.9
14.2
21.0
16.8

Y5
F5
G5
3.3
4.7
5.9
9.1
12.2

Y6
F6
G6
5.7
7.8
11.1
14.9
19.2

Solid Shaft, Foot Type
Mounting Position
Frame Size72, 72DA
82, 82DA
92, 95, 92DA
102, 105, 102DA
112, 115, 112DA

K1
2.1
3.2
4.1
6.7
8.6

K2
V2
7.6
10.7
14.1
22.2
29.6

K3

K4

K5

K6

5.0
6.8
9.1
14.3
18.5

4.5
5.9
6.8
12.9
15.0

2.8
4.0
5.1
8.6
10.7

5.4
7.4
9.7
15.3
20.4

(4) Procedure for Oil Feed and Discharge- Oil Feed Procedure(1) Remove the oil filler plug.
(2) With checking the oil level on the oil gauge, add oil from the oil filling port.
(3) Confirm that the oil level corresponds to the center position of the oil gauge.
(4) Install the oil filler plug.
- Oil Discharge Procedure
Remove the plug of the oil drain port and discharge the oil.
Oil ﬁller plug, oil ﬁlling port
Oil gauge
Oil drain port

Figure 8-1 Locations of Oil Filling/Drain Ports(E.g.: KHYM-Y1)

Figure 8-2 Locations of Oil Filling/Drain Ports(E.g.: KHYM-Y2)

For the locations of oil filling/drain ports other than the above, see P10 to 14.

42

Figure 8-3 Oil Gauge

8. Daily Inspection and Maintenance Common- Ensure that the gearmotor or reducer is stopped before feeding oil to it.
-If the viscosity of the oil is high, it may take time for the oil level to become uniform. Take care not to add an excessive quantity of oil.
- Add oil until it reaches the center of the oil gauge.
- Before checking the oil level, wait for a while after stopping the gearmotor or reducer. You cannot check the oil level either during
operation or immediately after the end of operation.
- For the daily control method of oil level, see Table 8-1 on P40.

(5) Long-Period Stoppage
Table 8-6 Long-Period Stoppage
Period ofstoppage

About onemonth

Replace the old oil with new one, then operate the gearmotor or reducer for several minutes, and stopit.

One month or Perform flushing, then add rust preventive oil, run the gearmotor or reducer in a no-load condition for
more
several minutes, and stop it.

When re-starting the gearmotor or reducer after a long-period stoppage, be sure to replace the oil with fresh one. This is because thepreviously used oil may have deteriorated.

8-4 Grease Lubrication (Input Part: CYCLO Reducer)
As the gearmotor and reducer is filled with long-life grease, you can use it for a long period without replenishing the grease.

8-5 Main Unit Maintenance- Although it will depend on operation conditions, maintenance with disassembly after approximately 20,000 hours or 3 to 5 years will
extend product lifetime. 											Contact the nearest authorized maintenance shop regarding maintenance with disassembly.
- Oil seals have a lifetime. During long use natural degradation and frictional wear will reduce effectiveness. Reducer operating conditions
and ambient environment will cause lifetime to widely vary. Given normal operation, (uniform load, running 10 hours per day, normal
temperature) as a guideline it is recommended to change them every 1 to 3 years. If the sliding surfaces of oil seals or V-rings show signs
of wear or corrosion, replace them with new ones. The sliding surface of an oil seal is made of carbon steel, so in order to prevent rust
forming on it, if there are parts of the oil seal that are exposed to the outside, periodically take steps to prevent rusting by coating the oilseal with rust preventive oil. About replacing oil seal and V-ring, please consult with nearest authorized maintenance shop.
- If stop and start are frequent, mounting bolts (or nuts) may come loose. Periodically check for looseness as this is a source of missalignment, oil leakages, and load unbalance.

8-6 Motor Bearing Maintenance- The Sumitomo standard motor is a sealed type bearing (not constructed for filling or draining grease) is used.
- When using other manufacturer’s motor due to motor’s specification, follow the operation manual for that motor.
- Although it will depend on operation conditions, maintenance with disassembly after approximately 20,000 hours or 3 to 5 years willfurther increase lifetime.
- Contact the nearest authorized maintenance shop regarding maintenance with disassembly.

43

8. Daily Inspection and Maintenance
8-7 Brake Maintenance and Inspection
DANGER- Do not handle the unit when cables are enregized. Be sure to turn off the power when working on the unit; otherwise, electric shock
may result.
- When using for lifting, do not release the brake while a load is suspended; otherwise it could fall, causing an accident.
- Do not operate the machine while the brake is released by the manual brake release bolt; otherwise, falling, going out of control, or
damage to the equipment may result.
- Before operation turn power on and off to check brake action; otherwise falling or running out of control could occur.
- Do not let water or oil touch the brake. the brake. Brake torque degradation could cause falling or running out of control.

CAUTION- After gap inspection and adjustment do not operate with the fan cover removed; otherwise loose clothing may became caught inthese rotating parts and cause serious injury or death.
- Changing brake linings requires experience. Consult with the nearest authorized maintenance shop.

Given normal operation conditions, brake mechanical lifetime is quite long at 2 million times (1 million times for FB-30, ESB-250 and
ESB-250-2). These conditions include the moment of inertia for the load being no greater than the one for the brakemotor. However, please periodically inspect the brake gap (G). The brake lining wears after long hours of running time, making it impossible
for the brake to release. When 2 million times is exceeded (1 million times for FB-30, ESB-250 and ESB-250-2), wear and damage tomechanical parts may cause dropping or overdrive problems.

8-8 Brake Construction and Gap Inspection and Adjustment- The brake is spring activated (off brake type).
- The brake lining wears after long hours of operating the brake, making it impossible for the brake to release. Therefore please periodically inspect the brake gap (G).
- If on inspection the gap is close to the limit value, adjust the gap.
- In FB-1E - 4E a shock absorber is inserted between the stationary core and the armature plate to reduce the noise that results from thebraking action.												When inspecting, be careful that the gap gauge, other measuring tool or anything else does not damage the shock absorber or cause it
to fall out.
There is danger that if the shock absorber is damaged or falls out, brake noise will increase and the brake will not function properly.
Table 8-7 Pages Containing Information on Brake Construction and Gap Inspection and Adjustment
Brake Type
FB-05A1
FB-1D
FB-1E
FB-1HE, FB-2E
FB-3E, FB-4E
FB-5E, FB-8E
FB-10E, FB-15E
FB-20
FB-30
ESB-250, ESB-250-2

Indoor
P45
P46
P47
P48
P49
P50
P51
P52
P53
P54

Note: Please refer to P67 for the way to remove and install One-Touch Release lever.

44

Outdoor
P56
P57
P58
P59
P60
P61
P62
P63
P64
P65

8. Daily Inspection and Maintenance■ FB-05A1 (Indoor Type)

8 7

6

5

4

3 2 1

Part Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16

Ｇ

9

10 11 12 13

14 15Part Name
Stationary core
SpacerBrake lining
Attachment bolt
Boss
Shaft-retaining C-ring
Cover
Fan set screw
Fan
Leaf spring
Fixed plate
Armature plate
SpringElectromagnetic coil
Bearing
Motor shaft

16

Figure 8-4- Gap Inspection(1) Remove the cover [7].
(2) I nsert a gap gauge between the stationary core [1] and the armature plate [12]and measure the gap. Measure in 3 locations around the circumference.
(3) Adjustment is required if the gap value is near the limit.

Gap Value G (mm)Required value
Limit value(original value)
0.2 - 0.35
0.5

- Gap Adjustment(1) Remove the cover [7].
(2) Loosen the fan set screw [8] and remove the fan [9].
(3) S lightly loosen the attachment bolts [4] and rotate the fixed plate [11] counter clockwise, as far as it will go. Then tighten the attachment bolts [4]. After tightening, measure the gap (G) and check to see if the gap value is between the required value and the limit.
(This operation will reduce the gap by 0.3 mm.)(4) Turn the power on and off to check brake action.
(5) A ttach the fan [9] and cover [7]. Use a fan set screw [8] coated with Three Bond TB2365 (Sumitomo part number EW444WW-01), andtighten with a torque of 0.3 – 0.5 N•m.
Note: If the optional brake release bolt is installed, disassemble the brake after removing the release bolt.

45

8. Daily Inspection and Maintenance■ FB-1D (Indoor Type)12 11 10 9

8

7

6

5

4

3 2

1

Part Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20

Ｇ

13

14

15 16 17 18 19 20Part Name
Stationary core
Brake release
Manual release protection spacer
Brake release bolt
Spacer
Gap adjusting shims
Attachment bolt
Brake lining
Leaf spring
Boss
Shaft-retaining C-ring
Fan set screw
Cover
Fan
Fixed plate
Armature plate
SpringElectromagnetic coil
Bearing
Motor shaft

Figure 8-5- Gap Inspection(1) Remove the brake release bolt [4] and the manual release prevention spacer [3].
(2) Remove the cover [13].
(3) I nsert a gap gauge between the stationary core [1] and the armature plate [16]and measure the gap. Measure in 3 locations around the circumference.

Gap Value G (mm)Required value
Limit value(original value)
0.3 - 0.4
0.6

(4) A
 djustment is required if the gap value is near the limit.
(You cannot adjust the thickness of the gap adjustment shims to about 0.2 to 0.25 or less.)- Gap Adjustment(1) Remove the brake release bolt [4] and the manual release prevention spacer [3].
(2) Remove the cover [13].
(3) Remove the fan set screw [12] and remove the fan [14].
(4) L oosen the attachment bolts [7] and remove the spacers [5], gap adjustment shims [6], attachment bolts [7] and fixed plate [15] as aset. When removing the attachment bolts [7] make certain not to omit the gap adjustment shims [6].
(5) The gap adjustment shims [6] have a thickness of 0.2 - 0.25 mm. Reduce the number of shims according to the wear conditions, thenreassemble the spacers [5], gap adjustment shims [6], attachment bolts [7] and the fixed plate [15] as a set.
(6) Check the gap G, and readjust the shims if there is a large difference between the gap and the required value.
(7) Turn the power on and off to check brake action.
(8) A ttach the fan [14], fan set screw [12] and cover [13]. Use a fan set screw [12] coated with Three Bond TB2365 (Sumitomo part number EW445WW-01), and tighten with a torque of 0.85 - 1.05 N·m. Finally, attach the brake release bolt [4] and the manual releaseprevention spacer [3].

46

8. Daily Inspection and Maintenance■ FB-1E (Indoor Type)

12

11

10

9

8

7

6

5

4

3

2

1

22
Ｇ
X

13

14

15

16

17

18

19

20

21

X部詳細
Detailsfor X

Part Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22

Part Name
Stationary core
Brake release
Seal washer
Manual release protection spacer
Brake release bolt
Spacer
Gap adjusting shims
Attachment bolt
Brake lining
Leaf spring
Boss
Shaft-retaining C-ring
Cover
Shaft-retaining C-ring
Fan
Fixed plate
Armature plate
SpringElectromagnetic coil
Ball bearings
Motor shaft
Shock absorber

Figure 8-6- Gap Inspection(1) Remove the brake release bolt [5] and the manual release prevention spacer [4].
(2) Remove the cover [13].
(3) I nsert a gap gauge between the stationary core [1] and the armature plate [17]and measure the gap. Measure in 3 locations around the circumference.

Gap Value G (mm)Required value
Limit value(original value)
0.25 - 0.35
0.6(4) Adjustment is required if the gap value is near the limit.
(You cannot adjust the thickness of the gap adjustment shims to about 0.2 to 0.25 or less.)- Gap Adjustment(1) Remove the brake release bolt [5] and the manual release prevention spacer [4].
(2) Remove the cover [13].
(3) Remove the shaft-retaining C-ring [14], and remove the fan [15].
(4) L oosen the attachment bolts [8] and remove the spacers [6], gap adjustment shims [7], attachment bolts [8] and fixed plate [16] asa set. When removing the attachment bolts [8] only, make sure not to fall the gap adjustment shims [7] and the shock absorber [22].
(5) The gap adjustment shims [7] have a thickness of 0.2 – 0.25 mm. Reduce the number of shims according to the wear conditions, thenreassemble the spacers [6], gap adjustment shims [7], attachment bolts [8] and the fixed plate [16] as a set.
(6) Check the gap G, and readjust the shims if there is a large difference between the gap and the required value.
(7) Turn the power on and off to check brake action.
(8) Attach the fan [15], shaft-retaining C-ring [14] and cover [13].
(9) Finally, attach the brake release bolt [5] and the manual release prevention spacer [4].

47

8. Daily Inspection and Maintenance■ FB-1HE, FB-2E (Indoor Type)

12

11

10

9

8

7

6

5

4

3

2

1

22
Ｇ
X

13

14

15

16

17

18

19

20

21

Detailsfor X
X部詳細

Part Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22

Part Name
Stationary core
Brake release
Seal washer
Manual release protection spacer
Brake release bolt
Spacer
Gap adjusting shims
Attachment bolt
Brake lining
Leaf spring
Boss
Shaft-retaining C-ring
Cover
Shaft-retaining C-ring
Fan
Fixed plate
Armature plate
SpringElectromagnetic coil
Ball bearings
Motor shaft
Shock absorber

Figure 8-7- Gap Inspection(1) Remove the brake release bolt [5] and the manual release prevention spacer [4].
(2) Remove the cover [13].
(3) I nsert a gap gauge between the stationary core [1] and the armature plate [17]and measure the gap. Measure in 3 locations around the circumference.

Gap Value G (mm)Required value
Limit value(original value)
0.25 - 0.35
0.75(4) Adjustment is required if the gap value is near the limit.
(You cannot adjust the thickness of the gap adjustment shims to about 0.35 to 0.45 or less.)- Gap Adjustment(1) Remove the brake release bolt [5] and the manual release prevention spacer [4].
(2) Remove the cover [13].
(3) Remove the shaft-retaining C-ring [14], and remove the fan [15].
(4) L oosen the attachment bolts [8] and remove the spacers [6], gap adjustment shims [7], attachment bolts [8] and fixed plate [16] asa set. When removing the attachment bolts [8] only, make sure not to fall the gap adjustment shims [7] and the shock absorber [22].
(5) The gap adjustment shims [7] have a thickness of 0.35 – 0.45mm. Reduce the number of shims according to the wear conditions,then reassemble the spacers [6], gap adjustment shims [7], attachment bolts [8] and the fixed plate [16] as a set.
(6) Check the gap G, and readjust the shims if there is a large difference between the gap and the required value.
(7) Turn the power on and off to check brake action.
(8) Attach the fan [15], shaft-retaining C-ring [14] and cover [13].
(9) Finally, attach the brake release bolt [5] and the manual release prevention spacer [4].

48

8. Daily Inspection and Maintenance■ FB-3E, FB-4E (Indoor Type)

11

10

9

8

7

6

5

4

3

2

1

21
Ｇ
X

12

13

14

15

16

17

18

19

20

Detailsfor X
X部詳細

Part Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21

Part Name
Stationary core
Brake release
Manual release protection spacer
Brake release bolt
Spacer
Gap adjusting shims
Attachment bolt
Brake lining
Leaf spring
Boss
Shaft-retaining C-ring
Cover
Shaft-retaining C-ring
Fan
Fixed plate
Armature plate
SpringElectromagnetic coil
Ball bearings
Motor shaft
Shock absorber

Figure 8-8- Gap Inspection(1) Remove the brake release bolt [4] and the manual release prevention spacer [3].
(2) Remove the cover [12].
(3) I nsert a gap gauge between the stationary core [1] and the armature plate [16]and measure the gap. Measure in 3 locations around the circumference.

Gap Value G (mm)Required value
Limit value(original value)
0.25 - 0.35
0.85(4) Adjustment is required if the gap value is near the limit.
(You cannot adjust the thickness of the gap adjustment shims to about 0.45 to 0.55 or less.)- Gap Adjustment(1) Remove the brake release bolt [4] and the manual release prevention spacer [3].
(2) Remove the cover [12].
(3) Remove the shaft-retaining C-ring [13] and the fan [14].
(4) L oosen the attachment bolts [7] and remove the spacers [5], gap adjustment shims [6], attachment bolts [7] and fixed plate [15] asa set. When removing the attachment bolts [7] only, make sure not to fall the gap adjustment shims [6] and the shock absorber [21].
(5) The gap adjustment shims [6] have a thickness of 0.45 – 0.55 mm. Reduce the number of shims according to the wear conditions,then reassemble the spacers [5], gap adjustment shims [6], attachment bolts [7] and the fixed plate [15] as a set.
(6) Check the gap G, and readjust the shims if there is a large difference between the gap and the required value.
(7) Turn the power on and off to check brake action.
(8) Attach the fan [14], shaft-retaining C-ring [13] and cover [12].
(9) Finally, attach the brake release bolt [4] and the manual release prevention spacer [3].

49

8. Daily Inspection and Maintenance■ FB-5E, FB-8E (Indoor Type)13 12 11 10

9

8

7

6

5

4

3

2

1

Ｇ

14 15 16 17 18 19 20 21 22

Part Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22

Part Name
Stationary core
Brake release
Seal washer
Manual release protection spacer
Brake release bolt
Stud bolt
Adjusting washer
Spring washer
Gap adjusting nut
Brake lining
Leaf spring
Boss
Shaft-retaining C-ring
Cover
Shaft-retaining C-ring
Fan
Fixed plate
Armature plate
SpringElectromagnetic coil
Ball bearings
Motor shaft

Figure 8-9- Gap Inspection(1) Remove the brake release bolt [5] and the manual release prevention spacer [4].
(2) Remove the cover [14].
(3) I nsert a gap gauge between the stationary core [1] and the armature plate [18]and measure the gap. Measure in 3 locations around the circumference.

Gap Value G (mm)Required value
Limit value(original value)
0.35 - 0.45
1.0(4) Adjustment is required if the gap value is near the limit.

- Gap Adjustment(1) Remove the brake release bolt [5] and the manual release prevention spacer [4].
(2) Remove the cover [14].
(3) I nsert a gap gauge between the stationary core [1] and the armature plate [18] and rotate to the right the gap adjusting nuts [9] thatare attached to ends of the stud bolts [6]. If large adjustments to the gap are not possible, decrease the number of adjusting washers[7]. There are 3 gap adjusting nuts [9]. Adjust these in turn so that 3 positions on the circumference are uniformly at the required gap.
(4) Turn the power on and off to check brake action.
(5) Attach the cover [14].
(6) Finally, attach the brake release bolt [5] and the manual release prevention spacer [4].

50

8. Daily Inspection and Maintenance■ FB-10E, FB-15E (Indoor Type)13 12 11 10

9

8

7

6

5

4

3

2

1

Part Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23

Ｇ

14 15 16 17 18 19 20 21 22 23Part Name
Stationary core
Brake release
Seal washer
Manual release protection spacer
Brake release bolt
Stud bolt
Adjusting washer
Spring washer
Gap adjusting nut
Brake lining
Leaf spring
Boss
Shaft-retaining C-ring
Cover
Shaft-retaining C-ring
Fan
Fixed plate
Armature plate
SpringElectromagnetic coil
Ball bearings
Motor shaft
Bearing cover

Figure 8-10

- Gap Inspection(1) Remove the brake release bolt [5] and the manual release prevention spacer [4].
(2) Remove the cover [14].
(3) I nsert a gap gauge between the stationary core [1] and the armature plate [18]and measure the gap. Measure in 3 locations around the circumference.

Gap Value G (mm)Required value
Limit value(original value)
0.35 - 0.45
1.2(4) Adjustment is required if the gap value is near the limit.

- Gap Adjustment(1) Remove the brake release bolt [5] and the manual release prevention spacer [4].
(2) Remove the cover [14].
(3) I nsert a gap gauge between the stationary core [1] and the armature plate [18] and rotate to the right the gap adjusting nuts [9] thatare attached to ends of the stud bolts [6]. If large adjustments to the gap are not possible, decrease the number of adjusting washers[7]. There are 3 gap adjusting nuts [9]. Adjust these in turn so that 3 positions on the circumference are uniformly at the required gap.
(4) Turn the power on and off to check brake action.
(5) Attach the cover [14].
(6) Finally, attach the brake release bolt [5] and the manual release prevention spacer [4].

51

8. Daily Inspection and Maintenance■ FB-20 (Indoor Type)14 13 12 11 10

9

8

7

6

28

5

4

3

2

1

Ｇ

15 16 17 18 19 20 21 22 23 24 25 26 27
Figure 8-11

Part Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28

Part Name
RollerBrake release bolt
Rubber packing
Manual release protection spacer
Seal washer
Stationary core
Electromagnetic coilStud bolt
Brake lining
Adjusting washer
Spring washer
Gap adjusting nut
Boss
Shaft-retaining C-ring
Fan
Cover
Fan set screw
Leaf spring
Fixed plate
Armature plate
SpringNut
Tap-end studBall bearings
Release lever
Bearing cover
Motor shaft
Grommet- Gap Inspection(1) Remove the grommet [28] and cover [16].
(2) I nsert a gap gauge between the stationary core [6] and the armature plate [20]and measure the gap. Measure in 3 locations around the circumference.
(3) Adjustment is required if the gap value is near the limit.

Gap Value G (mm)Required value
Limit value(original value)
0.6 - 0.7
1.5

- Gap Adjustment(1) Remove the grommet [28] and cover [16].
(2) I nsert a gap gauge between the stationary core [6] and the armature plate [20] and rotate to the right the gap adjusting nuts [12]that are attached to ends of the stud bolts [8]. If large adjustments to the gap are not possible, decrease the number of adjusting
washers [10]. There are 3 gap adjusting nuts [12]. Adjust these in turn so that 3 positions on the circumference are uniformly at therequired gap.
(3) Turn the power on and off to check brake action.
(4) Attach the cover [16] and grommet [28].

528. Daily Inspection and Maintenance■ FB-30 (Indoor Type)14 13 12 11 10

9

8

7

6

28

5

4

3

2

1

Ｇ

15 16 17 18 19 20 21 22 23 25 27 24 26
Figure 8-12

Part Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28

Part Name
RollerBrake release bolt
Rubber packing
Manual release protection spacer
Seal washer
Stationary core
Electromagnetic coilStud bolt
Brake lining
Adjusting washer
Spring washer
Gap adjusting nut
Boss
Shaft-retaining C-ring
Fan
Cover
Fan set screw
Leaf spring
Fixed plate
Armature plate
SpringNut
Tap-end studBall bearings
Release lever
Bearing cover
Motor shaft
Grommet- Gap Inspection(1) Remove the grommet [28] and cover [16].
(2) I nsert a gap gauge between the stationary core [6] and the armature plate [20]and measure the gap. Measure in 3 locations around the circumference.
(3) Adjustment is required if the gap value is near the limit.

Gap Value G (mm)Required value
Limit value(original value)
0.6 - 0.7
1.5

- Gap Adjustment(1) Remove the grommet [28] and cover [16].
(2) I nsert a gap gauge between the stationary core [6] and the armature plate [20] and rotate to the right the gap adjusting nuts [12]that are attached to ends of the stud bolts [8]. If large adjustments to the gap are not possible, decrease the number of adjusting
washers [10]. There are 3 gap adjusting nuts [12]. Adjust these in turn so that 3 positions on the circumference are uniformly at therequired gap.
(3) Turn the power on and off to check brake action.
(4) Attach the cover [16] and grommet [28].

538. Daily Inspection and Maintenance■ ESB-250, ESB-250-2 (Indoor Type)11 12 13 14 15 16 17 18 19 20 21

Part Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21

Ｇ

10 9

8

7

6

5

4

3

2

1

Part Name
Center ring
Gap adjusting screw
Attachment bolt
Field
Brake coil
Actuating spring
Fan
Cover
Motor shaft
Fan set screw
Lock bolt
Armature
Inner discOuter disc
Spacer bush
Stopper
Hub
Brake adapter plate
Opposite drive end cover
Opposite drive end bearing
Opposite drive end bearing coverNotes: 1. The motor for separately ventilated
type has a different shape.

Figure 8-13

2. T here are 3 of [13][14] for ESB-250(horizontal type), and 2 for ESB-250-2(vertical type).

Items
Specifications
Rated input voltage
AC200/220V 50/60Hz
Maximum input voltage
AC240V 50/60Hz
Minimum input voltage
AC170V 50/60Hz
Standard output Instantaneous voltage DC180V (for AC200V input)
voltage
Steady voltage
DC90V (for AC200V input)
Maximum output current
DC1.8A (Steady output)
Over excitation time
0.4 - 1.2s
100MΩ or larger (When measured with
Insulation resistance
1000V megohmmeter)
Insulation withstand voltage
AC2000V for one time or more
Inching(When on-time 1.2 sec or less): 8 cycles/min
Maximum
Constant (When on-time exceeds 1.2 sec):
frequency
Steady30 cycles/min
Allowable ambient temperature-20℃ to 60℃■Accessory Rectifier (DC Power Supply Unit) Model HD-110M3
Outline Drawing
96

Internal Circuit (Diagram)

84
74
30.5

6

1

3

51

CONTACTOR

4

5

AC
200V

Instant
activation

5.5

7

41

66

4.5

BRAKE

6

2
13.5 13.5 13.5
Terminal screw M4

Figure 8-14

Notes: 1. Model HD-110M3 is an indoor model. Take care to avoid water, etc.
2. Transformer is necessary for operation with 400V class power source. Secondary voltage is 200 – 220V.

54

4Arc-extinguishing circuit

AC200V/220V

2

5
Timer and gate circuit

1

SW

MB

3

8. Daily Inspection and Maintenance- Gap Inspection(1) Remove the cover [8].
(2) I nsert a gap gauge between the field [4] and the armature [12] and measure thegap. Measure in 4 locations around the circumference.
(3) Adjustment is required if the gap value is near the limit.

Gap Value G (mm)Required value
Limit value(original value)
0.7
2.0- Gap Adjustment(1) Manually release the brake following the procedure on P70.
(2) L oosen the stopper [16] on the periphery of the center ring [1], and remove. This will free the gap adjusting screws [2]. 		
(See Figure 8-15)(3) I nsert a gap adjustment bar (An angle plate should be prepared by customer. See Figure 8-17) into the groove of adjustment screw(2) between the outer disk [14] and the center ring [1].								Rotating to the left as seen from the field [4] side, will narrow the gap. (See Figure 8-16)(4) S ix attachment bolts [3] and lock bolts [11] alternately pass through the space between the outer disc [14] and the center ring [1].
Rotating the gap adjustment bar will make the bar touch these bolts. There are 8 equally distributed holes for gap adjusting screws[2]. Adjust the gap G to the required value by repeating (3) each time the gap adjusting bar contacts a bolt.
(5) Select the point where hole and screw hole are closest to the required gap and attach the stopper [16] there.
(6) After returning the manual brake release to its original state, turn power on and off to check brake action.
(7) Attach the fan [7] and cover [8]. At this time coat the fan set screw [10] with Three Bond TB2365.

Gap Adjusting Bar Dimension

Gap adjusting bar
4

16

1
1

150mm

14

2

2

Figure 8-15

Figure 8-16

3.5mm

14

14.7±0.1mm

Figure 8-1755

8. Daily Inspection and Maintenance■ FB-05A1 (Outdoor Type)
12

14

13

17

16

15

18 19

Ｇ

11
10
9
8

20

7
6

5

4

3

2

1

Part Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20

Part Name
Armature plate
Brake lining
Spacer
Attachment bolt
Fixed plate
Fan
V-ringShaft-retaining C-ring
Boss
Leaf spring
Cover
Waterproof cover
Waterproof cover attachment bolts
Waterproof seal
SpringElectromagnetic coil
Stationary core
Bearing
Motor shaft
Fan set screw

Figure 8-18

- Gap Inspection(1) Remove the cover [11].
(2) Loosen the fan set screw [20] and remove the fan [6].
(3) Remove the waterproof seal [14].
(4) I nsert a gap gauge between the stationary core [17] and the armature plate [1]and measure the gap. Measure in 3 locations around the circumference.
(5) Adjustment is required if the gap value is near the limit.

Gap Value G (mm)Required value
Limit value(original value)
0.2 - 0.35
0.5

- Gap Adjustment(1) Remove the cover [11].
(2) Loosen the fan set screw [20] and remove the fan [6].
(3) Remove the waterproof seal [14].
(5) Remove the waterproof cover attachment bolts [13], and remove the waterproof cover [12].

ＡＢ(4) Pull off the V-ring [7].
(6) S lightly loosen the attachment bolts [4] and rotate the fixed plate [5] counter clockwise, as far as it will go. Thentighten the attachment bolts [4]. After tightening, measure the gap (G) and check to see if the gap value is between the required value and the limit. (This operation will reduce the gap by 0.3 mm.)(7) A ttach the waterproof cover [12] by using the attachment bolts [13]. Attach the waterproof cover [12] so that thegap (A) between its hole and the motor shaft [19] is nearly uniform around the circumference.
(8) Clean the surface of the waterproof seal [14] to remove impurities.
(9) A s shown in the construction diagram, install the waterproof seal [14] between the stationary core [17] and thewaterproof cover [12]. Insert the waterproof seal [14] with its arrow mark pointing toward the load side. Align the hole in the waterproof seal [14] for the release bolt with the position of release bolt. Attach the waterproof seal [14] so that its protrusion fits snugly
around the entire circumference of the stationary core’s groove [17]. Otherwise water could leak in.
(10) Turn the power on and off to check brake action.
(11) A
 ttach the V-ring [7]. Wipe off the lip and surface near the lip of the V-ring [7], lightly coat the lip surface with grease and attach.
Observe the attaching dimension (B = 4.5mm).
(12) A
 ttach the fan [7] and cover [11]. Use a fan set screw [20] coated with Three Bond TB2365 (Sumitomo part number EW444WW-01),
and tighten with a torque of 0.3 – 0.5 N•m.
Note: If the optional brake release bolt is installed, disassemble the brake after removing the release bolt.

56

8. Daily Inspection and Maintenance■ FB-1D (Outdoor Type)1312

14 15 16 17

18 19

20
21 22

11

23
24

10

9

8

7

Ｇ

6

5

4

3

2

1

Figure 8-19

Part Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24

Part Name
Armature plate
Brake lining
Spacer
Gap adjusting shims
Attachment bolt
Fixed plate
Fan
V-ringFan set screw
Shaft-retaining C-ring
Boss
Leaf spring
Cover
Waterproof cover
Waterproof cover attachment bolts
Waterproof seal
Brake release bolt
Manual release protection spacer
Brake release
SpringElectromagnetic coil
Stationary core
Bearing
Motor shaft- Gap Inspection(1) Remove the brake release bolt [17] and the manual release prevention spacer [18].
(2) Remove the cover [13].
(3) Loosen the fan set screw [9] and remove the fan [7].
Gap Value G (mm)(4) Remove the brake release [19]. (2 Places)
Required value
Limit value(5) Remove the waterproof seal [16].
(original value)(6) I nsert a gap gauge between the stationary core [22] and the armature plate [1]0.3 - 0.4
0.6
and measure the gap. Measure in 3 locations around the circumference.
(7) Adjustment is required if the gap value is near the limit.
(You cannot adjust the thickness of the gap adjustment shims to about 0.2 to 0.25 or less.)- Gap Adjustment

Ａ(1) Remove the brake release bolt [17] and the manual release prevention spacer [18].
Ｂ(2) Remove the cover [13].
(3) Loosen the fan set screw [9] and remove the fan [7].
(4) Pull off the V-ring [8].
(5) Remove the brake release [19]. (2 Places)(6) Remove the waterproof seal [16].
(7) Remove the waterproof cover attachment bolts [15], and remove the waterproof cover [14].
(8) L oosen the attachment bolts [5] and remove the spacers [3], gap adjustment shims [4], attachment bolts [5] andfixed plate [6] as a set. When removing the attachment bolts only, make sure not to fall the gap adjustment shims [4].
(9) The gap adjustment shims [4] have a thickness of 0.2 – 0.25 mm. Reduce the number of shims according to the wear
conditions, then reassemble the spacers [3], gap adjustment shims [4], attachment bolts [5] and the fixed plate [6] as a set.
(10) Check the gap G, and readjust the shims if there is a large difference between the gap and the required value.
(11) A
 ttach the waterproof cover [14] by using the attachment bolts [15]. Attach the waterproof cover [14] so that the gap (A) between
its hole and the motor shaft [24] is nearly the same.
(12) Clean the surface of the waterproof seal [16] to remove impurities.
(13) A
 s shown in the construction diagram, install the waterproof seal [16] between the stationary core [22] and the waterproof cover[14]. Then attach the brake release [19]. Insert the waterproof seal [16] with its arrow mark pointing toward the load side. Align thehole in the waterproof seal [16] for the release bolt with the position of release bolt [17]. Attach the waterproof seal [16] so that its
protrusion fits snugly around the entire circumference of the stationary core’s groove [22]. Otherwise water could leak in.
(14) Turn the power on and off to check brake action.
(15) A
 ttach the V-ring [8]. Wipe off the lip and surface near the lip of V-ring [8], lightly coat the lip surface with grease, and attach. Observe the attaching dimension (B=4.5mm).
(16) Attach the fan [7] and cover [13]. Use a fan set screw [9] coated with Three Bond TB2365 (Sumitomo part number EW445WW-01),
and tighten with a torque of 0.85 – 1.05N•m. Finally, attach the brake release bolt [17] and the manual release prevention spacer
[18].

57

8. Daily Inspection and Maintenance■ FB-1E (Outdoor Type)
12

11

10

9

8

7

6

5

4

3

2

1

22
23
24
25

26

Ｇ
X

13

14

15

16

17

18

19

20

21

X部詳細
Detailsfor X

Figure 8-20

- Gap Inspection

Part Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26

Part Name
Stationary core
Brake release
Seal washer
Manual release protection spacer
Brake release bolt
Spacer
Gap adjusting shims
Attachment bolt
Brake lining
Leaf spring
Boss
Shaft-retaining C-ring
Cover
Shaft-retaining C-ring
Fan
Fixed plate
Armature plate
SpringElectromagnetic coil
Ball bearings
Motor shaft
Waterproof seal
V-ringWaterproof cover attachment bolts
Waterproof cover
Shock absorber(1) Remove the brake release bolt [5] and the manual release prevention spacer [4].
(2) Remove the cover [13].
(3) Remove the shaft-retaining C-ring [14], and remove the fan [15].
Gap Value G (mm)(4) Remove the brake release [2] (2 locations) and remove the waterproof seal [22].
Required value
Limit value(5) I nsert a gap gauge between the stationary core [1] and the armature plate [17](original value)
and measure the gap. Measure in 3 locations around the circumference.
0.25 - 0.35
0.6(6) Adjustment is required if the gap value is near the limit.
(You cannot adjust the thickness of the gap adjustment shims to about 0.2 to 0.25 or less.)- Gap Adjustment

Ｂ

Ａ(1) Remove the brake release bolt [5] and the manual release prevention spacer [4].
(2) Remove the cover [13].
(3) Remove the shaft-retaining C-ring [14], and remove the fan [15].
(4) Pull off the V-ring [23].
(5) Remove the brake release [2] (2 locations) and remove the waterproof seal [22].
(6) Remove the waterproof cover attachment bolts [24], and remove the waterproof cover [25].
(7) L oosen the attachment bolts [8] and remove the spacers [6], gap adjustment shims [7], attachment bolts [8] andfixed plate [16] as a set. When removing the attachment bolts [8] only, make sure not to fall the gap adjustment
shims [7] and the shock absorber [26].
(8) The gap adjustment shims [7] have a thickness of 0.2 – 0.25 mm. Reduce the number of shims according to the wear conditions, thenreassemble the spacers [6], gap adjustment shims [7], attachment bolts [8] and the fixed plate [16] as a set.
(9) Check the gap G, and readjust the shims if there is a large difference between the gap and the required value.
(10) A
 ttach the waterproof cover [25] using the attachment bolts [24]. At this time align the cutout area on the side of the waterproof
cover [25] with the brake release bolt [5]. Attach the waterproof cover [25] so that the gap (A) between its hole and the motor shaft[21] is nearly the same.
(11) Clean the surface of the waterproof seal [22] to remove impurities.
(12) A
 s shown in the construction diagram, install the waterproof seal [22] between the stationary core [1] and the waterproof cover[25]. Then attach the brake release [2]. Insert the waterproof seal [22] with its arrow mark pointing toward the load side. Align thehole in the waterproof seal [22] for the release bolt with the position of release bolt [5]. Attach the waterproof seal [22] so that its
protrusion fits snugly around the entire circumference of the stationary core’s groove [1]. (Be careful that the waterproof seal [22]does not meander. Otherwise water could leak in.) Otherwise water could leak in.)(13) Turn the power on and off to check brake action.
(14) A
 ttach the V-ring [23]. Wipe off the lip and surface near the lip of the V-ring [23], lightly coat the lip surface with grease, and attach.
Observe the attaching dimension (B = 6mm).
(15) Attach the fan [15], shaft-retaining C-ring [14] and cover [13].
(16) Finally, attach the brake release bolt [5] and the manual release prevention spacer [4].

58

8. Daily Inspection and Maintenance■ FB-1HE, FB-2E (Outdoor Type)

26
X

X部詳細
Detailsfor X

Figure 8-21

- Gap Inspection

Part Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26

Part Name
Stationary core
Brake release
Seal washer
Manual release protection spacer
Brake release bolt
Spacer
Gap adjusting shims
Attachment bolt
Brake lining
Leaf spring
Boss
Shaft-retaining C-ring
Cover
Shaft-retaining C-ring
Fan
Fixed plate
Armature plate
SpringElectromagnetic coil
Ball bearings
Motor shaft
Waterproof seal
V-ringWaterproof cover attachment bolts
Waterproof cover
Shock absorber(1) Remove the brake release bolt [5] and the manual release prevention spacer [4].
(2) Remove the cover [13].
(3) Remove the shaft-retaining C-ring [14], and remove the fan [15].
Gap Value G (mm)(4) Remove the brake release [2] (2 locations) and remove the waterproof seal [22].
Required value(5) I nsert a gap gauge between the stationary core [1] and the armature plate [17]Limit value(original value)
and measure the gap. Measure in 3 locations around the circumference.
0.25 - 0.35
0.75(6) Adjustment is required if the gap value is near the limit.
(You cannot adjust the thickness of the gap adjustment shims to about 0.35 to 0.45 or less.)- Gap Adjustment

Ａ(1) Remove the brake release bolt [5] and the manual release prevention spacer [4].
(2) Remove the cover [13].
(3) Remove the shaft-retaining C-ring [14], and remove the fan [15].
(4) Pull off the V-ring [23].
(5) Remove the brake release [2] (2 locations) and remove the waterproof seal [22].
(6) Remove the waterproof cover attachment bolts [24], and remove the waterproof cover [25].
(7) L oosen the attachment bolts [8] and remove the spacers [6], gap adjustment shims [7], attachment bolts [8] and fixed plate [16] asa set. When removing the attachment bolts [8] only, make sure not to fall the gap adjustment shims [7] and the shock absorber [26].
(8) The gap adjustment shims [7] have a thickness of 0.35 – 0.45mm. Reduce the number of shims according to the wearＢ
conditions, then reassemble the spacers [6], gap adjustment shims [7], attachment bolts [8] and the fixed plate [16]as a set.
(9) Check the gap G, and readjust the shims if there is a large difference between the gap and the required value.
(10) A
 ttach the waterproof cover [25] using the attachment bolts [24]. At this time align the cutout area on the side of
the waterproof cover [25] with the brake release bolt [5]. Attach the waterproof cover [25] so that the gap (A) between its hole and the motor shaft [21] is nearly the same.
(11) Clean the surface of the waterproof seal [22] to remove impurities.
(12) As shown in the construction diagram, install the waterproof seal [22] between the stationary core [1] and the waterproof cover [25]. Then attach the brake release [2]. Insert the waterproof seal [22] with its arrow mark pointing
toward the load side. Align the hole in the waterproof seal [22] for the release bolt with the position of release bolt[5]. Attach the waterproof seal [22] so that its protrusion fits snugly around the entire circumference of the stationary core’s groove[1]. (Be careful that the waterproof seal [22] does not meander. Otherwise water could leak in.) Otherwise water could leak in.)(13) Turn the power on and off to check brake action.
(14) Attach the V-ring [23]. Wipe off the lip and surface near the lip of the V-ring [23], lightly coat the lip surface with grease, and attach.
Observe the attaching dimension (B = 6mm).
(15) Attach the fan [15], shaft-retaining C-ring [14] and cover [13].
(16) Finally, attach the brake release bolt [5] and the manual release prevention spacer [4].

59

8. Daily Inspection and Maintenance■ FB-3E, FB-4E (Outdoor Type)
11

10

9

8

7

6

5

4

3

2

1

21
22
23
24

25

Ｇ
X

12

13

14

15

16

17

18

19

Figure 8-22

20
X部詳細
Detailsfor X- Gap Inspection

Part Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25

Part Name
Stationary core
Brake release
Manual release protection spacer
Brake release bolt
Spacer
Gap adjusting shims
Attachment bolt
Brake lining
Leaf spring
Boss
Shaft-retaining C-ring
Cover
Shaft-retaining C-ring
Fan
Fixed plate
Armature plate
SpringElectromagnetic coil
Ball bearings
Motor shaft
Waterproof seal
V-ringWaterproof cover attachment bolts
Waterproof cover
Shock absorber(1) Remove the brake release bolt [4] and the manual release prevention spacer [5].
(2) Remove the cover [12].
(3) Remove the shaft-retaining C-ring [13] and the fan [14].
Gap Value G (mm)(4) Remove the brake release [2] (2 locations) and remove the waterproof seal [21].
Required value(5) I nsert a gap gauge between the stationary core [1] and the armature plate [16]Limit value(original value)
and measure the gap. Measure in 3 locations around the circumference.
0.25 - 0.35
0.85(6) Adjustment is required if the gap value is near the limit.
(You cannot adjust the thickness of the gap adjustment shims to about 0.45 to 0.55 or less.)- Gap Adjustment

Ａ(1) Remove the brake release bolt [4] and the manual release prevention spacer [5].
(2) Remove the cover [12].
(3) Remove the shaft-retaining C-ring [13] and the fan [14].
(4) Pull off the V-ring [22].
(5) Remove the brake release [2] (2 locations) and remove the waterproof seal [21].
(6) Remove the waterproof cover attachment bolts [23], and remove the waterproof cover [24].
(7) L oosen the attachment bolts [7] and remove the spacers [5], gap adjustment shims [6], attachment bolts [7] and fixed plate [15] asa set. When removing the attachment bolts [7] only, make sure not to fall the gap adjustment shims [6] and the shock absorber [25].
(8) The gap adjustment shims [6] have a thickness of 0.45 – 0.55 mm. Reduce the number of shims according to the wear conditions,then reassemble the spacers [5], gap adjustment shims [6], attachment bolts [7] and the fixed plate [15] as a set.
(9) Check the gap G, and readjust the shims if there is a large difference between the gap and the required value.
Ｂ(10) A
 ttach the waterproof cover [24] using the attachment bolts [23]. At this time align the cutout area on the side of
the waterproof cover [24] with the brake release bolt [4]. Attach the waterproof cover [24] so that the gap (A) between its hole and the motor shaft [20] is nearly the same.
(11) Clean the surface of the waterproof seal [21] to remove impurities.
(12) As shown in the construction diagram, install the waterproof seal [21] between the stationary core [1] and thewaterproof cover [24]. Then attach the brake release [2]. At this time align the hole in the waterproof seal [21] forthe release bolt with the position of release bolt [4]. Attach the waterproof seal [21] so that its protrusion fits snugly
around the entire circumference of the stationary core’s groove [1]. (Be careful that the waterproof seal [21] does
not meander. Otherwise water could leak in.)(13) Turn the power on and off to check brake action.
(14) Attach the V-ring [22]. Wipe off the lip and surface near the lip of the V-ring [22], lightly coat the lip surface with grease, and attach.
Observe the attaching dimension (B = 6mm).
(15) Attach the fan [14], shaft-retaining C-ring [13] and cover [12].
(16) Finally, attach the brake release bolt [4] and the manual release prevention spacer [3].

60

8. Daily Inspection and Maintenance■ FB-5E, FB-8E (Outdoor Type)
13 12

11 10

9

8

7

6

5

4

3

2

1

23
24
25
26

Ｇ

14 15 16 17 18 19 20

21 22

Figure 8-23

- Gap Inspection(1) Remove the brake release bolt [5] and the manual release prevention spacer [4].
(2) Remove the cover [14].
(3) Remove the shaft-retaining C-ring [15], and remove the fan [16].
(4) Remove the brake release [2] (2 locations) and remove the waterproof seal [23].
(5) I nsert a gap gauge between the stationary core [1] and the armature plate [18]and measure the gap. Measure in 3 locations around the circumference.
(6) Adjustment is required if the gap value is near the limit.

Part Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26

Part Name
Stationary core
Brake release
Seal washer
Manual release protection spacer
Brake release bolt
Stud bolt
Adjusting washer
Spring washer
Gap adjusting nut
Brake lining
Leaf spring
Boss
Shaft-retaining C-ring
Cover
Shaft-retaining C-ring
Fan
Fixed plate
Armature plate
SpringElectromagnetic coil
Ball bearings
Motor shaft
Waterproof seal
V-ringWaterproof cover attachment bolts
Waterproof cover

Gap Value G (mm)Required value
Limit value(original value)
0.35 - 0.45
1.0

- Gap Adjustment

Ａ(1) Remove the brake release bolt [5] and the manual release prevention spacer [4].
(2) Remove the cover [14].
(3) Remove the shaft-retaining C-ring [15], and remove the fan [16].
(4) Pull off the V-ring [24].
(5) Remove the brake release [2] (2 locations) and remove the waterproof seal [23].
(6) Remove the waterproof cover attachment bolts [25], and remove the waterproof cover [26].
(7) I nsert a gap gauge between the stationary core [1] and the armature plate [18] and rotate to the right the gap adjusting nuts [9] thatare attached to ends of the stud bolts [6]. If large adjustments to the gap are not possible, decrease the number of adjusting washers[7]. There are 3 gap adjusting nuts [9]. Adjust these in turn so that 3 positions on the circumference are uniformly at the required gap.
(8) A ttach the waterproof cover [26] by using the attachment bolts [25]. At this time, align the cutout area on the side of the waterproof
cover [26] with the brake release bolt [5]. Attach the waterproof cover [26] so that the gap (A) between its hole and the motor shaft[22] is nearly the same.
(9) Clean the surface of the waterproof seal [23] to remove impurities.
(10) A
 s shown in the construction diagram, install the waterproof seal [23] between the stationary core [1] and the waＢ
terproof cover [26]. Then attach the brake release [2]. At this time, align the hole in the waterproof seal [23] for the
release bolt with the position of release bolt [5]. Then attach the brake release along the machined surfaces aroundthe stationary core [1]. (Be careful that the waterproof seal [23] does not meander. Otherwise water could leak in.)(11) Turn the power on and off to check brake action.
(12) A
 ttach the V-ring [24]. Wipe off the lip and surface near the lip of the V-ring [24], lightly coat the lip surface withgrease, and attach. Observe the attaching dimension (B = 6mm).
(13) Attach the fan [16], shaft-retaining C-ring [15] and cover [14].
(14) Finally, attach the brake release bolt [5] and the manual release prevention spacer [4].

61

8. Daily Inspection and Maintenance■ FB-10E, FB-15E (Outdoor Type)13 12 11 10

9

8

7

6

5

4

3

2

1

Part Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27

24
25
26
27

Ｇ

14 15 16 17 18 19 20 21 22 23
Figure 8-24

- Gap Inspection(1) Remove the brake release bolt [5] and the manual release prevention spacer [4].
(2) Remove the cover [14].
(3) Remove the shaft-retaining C-ring [15], and remove the fan [16].
(4) Remove the brake release [2] (2 locations) and remove the waterproof seal [24].
(5) I nsert a gap gauge between the stationary core [1] and the armature plate [18]and measure the gap. Measure in 3 locations around the circumference.
(6) Adjustment is required if the gap value is near the limit.

Part Name
Stationary core
Brake release
Seal washer
Manual release protection spacer
Brake release bolt
Stud bolt
Adjusting washer
Spring washer
Gap adjusting nut
Brake lining
Leaf spring
Boss
Shaft-retaining C-ring
Cover
Shaft-retaining C-ring
Fan
Fixed plate
Armature plate
SpringElectromagnetic coil
Ball bearings
Motor shaft
Bearing cover
Waterproof seal
V-ringWaterproof cover attachment bolts
Waterproof cover

Gap Value G (mm)Required value
Limit value(original value)
0.35 - 0.45
1.2

- Gap Adjustment

Ａ(1) Remove the brake release bolt [5] and the manual release prevention spacer [4].
(2) Remove the cover [14].
(3) Remove the shaft-retaining C-ring [15], and remove the fan [16].
(4) Pull off the V-ring [25].
(5) Remove the brake release [2] (2 locations) and remove the waterproof seal [24].
(6) Remove the waterproof cover attachment bolts [26], and remove the waterproof cover [27].
(7) I nsert a gap gauge between the stationary core [1] and the armature plate [18] and rotate to the right the gap adjusting nuts [9] thatare attached to ends of the stud bolts [6]. If large adjustments to the gap are not possible, decrease the number of adjusting washers[7]. There are 3 gap adjusting nuts [9]. Adjust these in turn so that 3 positions on the circumference are uniformly at the required gap.
(8) A ttach the waterproof cover [27] by using the attachment bolts [26]. At this time, align the cutout area on the side of the waterproof
cover [27] with the brake release bolt [5]. Attach the waterproof cover [27] so that the gap (A) between its hole andthe motor shaft [22] is nearly the same.
Ｂ(9) Clean the surface of the waterproof seal [24] to remove impurities.
(10) A
 s shown in the construction diagram install the waterproof seal [24] between the stationary core [1] and thewaterproof cover [27]. Then attach the brake release [2]. At this time align the hole in the waterproof seal [24] forthe release bolt with the position of release bolt [5]. Then attach brake release along the machined surfaces aroundthe stationary core [1]. (Be careful that the waterproof seal [24] does not meander. Otherwise water could leak in.)(11) Turn the power on and off to check brake action.
(12) A
 ttach the V-ring [24]. Wipe off the lip and surface near the lip of the V-ring [25], lightly coat the lip surface withgrease, and attach. Observe the attaching dimension (B = 6mm).
(13) Attach the fan [16], shaft-retaining C-ring [15] and cover [14].
(14) Finally, attach the brake release bolt [5] and the manual release prevention spacer [4].

62

8. Daily Inspection and Maintenance■ FB-20 (Outdoor Type)14 13 12 11 10 9

28

8

7

6

5

4

3

2

1

C

29
30
31
32
33

Ｇ

15 16 17 18 19 20 21 22 23 24 25 26 27
Figure 8-25

- Gap Inspection(1) Remove the outdoor cover [33] and the cover [16].
(2) Loosen the fan set screw [17] and remove the fan [15].
(3) Remove the waterproof seal [32].
(4) I nsert a gap gauge between the stationary core [6] and the armature plate [20]and measure the gap. Measure in 3 locations around the circumference.

Part Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33

Part Name
RollerBrake release bolt
Rubber packing
Manual release protection spacer
Seal washer
Stationary core
Electromagnetic coilStud bolt
Brake lining
Adjusting washer
Spring washer
Gap adjusting nut
Boss
Shaft-retaining C-ring
Fan
Cover
Fan set screw
Leaf spring
Fixed plate
Armature plate
SpringNut
Tap-end studBall bearings
Release lever
Bearing cover
Motor shaft
Waterproof cover
V-ringWaterproof cover attachment bolts
Waterproof cover gasket
Waterproof seal
Outdoor coverNote: The outdoor cover [33] for the vertical
types has a different shape.

(5) Adjustment is required if the gap value is near the limit.

- Gap Adjustment

Gap Value G (mm)Required value
Limit value(original value)
0.6 - 0.7
1.5(1) Remove the outdoor cover [33] and the cover [16].
(2) Loosen the fan set screw [17] and remove the fan [15].
(3) Pull off the V-ring [29](4) Remove the waterproof seal [32].

(5) I nsert a gap gauge between the stationary core [6] and the armature plate [20] and rotate to the right the gap adjusting nuts [12]that are attached to ends of the stud bolts [8]. If large adjustments to the gap are not possible, decrease the number of adjusting
washers [10]. There are 3 gap adjusting nuts [12]. Adjust these in turn so that 3 positions on the circumference are uniformly at therequired gap.
(6) Turn the power on and off to check brake action.
(7) A ttach the waterproof cover [26] so that the gap (A) between its hole and the motor shaft [27] is nearly the same around the entire
circumference. (Only when the waterproof cover [26] has been removed)(9) A s shown in the construction diagram, install the waterproof seal [32] between the stationary core [6] and the fixedplate [19]. (Be careful that the waterproof seal [32] does not meander. Otherwise water could leak in.)(10) A
 ttach the V-ring [29]. Wipe off the lip and surface near the lip of the V-ring [29], lightly coat the lip surface withgrease, and attach. Observe the attaching dimension (B = 7mm).
(11) Thoroughly coat the gap (C) (the gap between adjusting nuts [12] and the stud bolts [8], and the gap between stud[8] bolts and the fixed plate [19]. ) with waterproof adhesive (Three Bond 1102).
(12) Attach the fan [15] and cover [16] and outdoor cover [33].

63

Ｂ

Ａ

(8) Clean the surface of the waterproof seal [32] to remove impurities.

8. Daily Inspection and Maintenance■ FB-30 (Outdoor Type)14 13 12 11 10 9

8

7

6

5

4

3

2

C

28
29
30
31
32
33

Ｇ

15 16 17 18 19 20 21 22 23 25 27 24 26
Figure 8-26

- Gap Inspection

1

Part Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33

Part Name
RollerBrake release bolt
Rubber packing
Manual release protection spacer
Seal washer
Stationary core
Electromagnetic coilStud bolt
Brake lining
Adjusting washer
Spring washer
Gap adjusting nut
Boss
Shaft-retaining C-ring
Fan
Cover
Fan set screw
Leaf spring
Fixed plate
Armature plate
SpringNut
Tap-end studBall bearings
Release lever
Bearing cover
Motor shaft
Waterproof cover
V-ringWaterproof cover attachment bolts
Waterproof cover gasket
Waterproof seal
Outdoor cover(1) Remove the outdoor cover [33] and the cover [16].
(2) Loosen the fan set screw [17] and remove the fan [15].
(3) Remove the waterproof seal [32].
(4) I nsert a gap gauge between the stationary core [6] and the armature plate [20] Note: The outdoor cover [33] for the verticaland measure the gap. Measure in 3 locations around the circumference.
types has a different shape.
(5) Adjustment is required if the gap value is near the limit.

- Gap AdjustmentＡ

Gap Value G (mm)Required value(1) Remove the outdoor cover [33] and the cover [16].
Limit value(original value)(2) Loosen the fan set screw [17] and remove the fan [15].
0.6 - 0.7
1.5(3) Pull off the V-ring [29](4) Remove the waterproof seal [32].
(5) I nsert a gap gauge between the stationary core [6] and the armature plate [20] and rotate to the right the gap adjusting nuts [12]that are attached to ends of the stud bolts [8]. If large adjustments to the gap are not possible, decrease the number of adjusting
washers [10]. There are 3 gap adjusting nuts [12]. Adjust these in turn so that 3 positions on the circumference are uniformly at therequired gap.
(6) Turn the power on and off to check brake action.
(7) A ttach the waterproof cover [26] so that the gap (A) between its hole and the motor shaft [27] is nearly uniform. (Onlywhen the waterproof cover [26] has been removed)Ｂ(8) Clean the surface of the waterproof seal [32] to remove impurities.
(9) A s shown in the construction diagram, install the waterproof seal [32] between the stationary core [6] and the fixedplate [19]. (Be careful that the waterproof seal [32] does not meander. Otherwise water could leak in.)(10) A
 ttach the V-ring [29]. Wipe off the lip and surface near the lip of the V-ring [29], lightly coat the lip surface withgrease, and attach. Observe the attaching dimension (B = 7mm).
(11) Thoroughly coat the gap (C) (the gap between adjusting nuts [12] and the stud bolts [8], and the gap between stud[8] bolts and the fixed plate [19]. ) with waterproof adhesive (Three Bond 1102).
(12) Attach the fan [15] and cover [16] and outdoor cover [33].

648. Daily Inspection and Maintenance■ ESB-250, ESB-250-2 (Outdoor Type)Part Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25

11 12 13 14 15 16 17 18 19 20 21

25
24
23
22

Ｇ

10 9

8

7

6

5

4

3

2

1

注) 屋外立形仕様の場合、
Figure 8-27
屋外カバー 25 の形状は異なります。
Items
Specifications
Rated input voltage
AC200/220V 50/60Hz
Maximum input voltage
AC240V 50/60Hz
Minimum input voltage
AC170V 50/60Hz
Standard output Instantaneous voltage DC180V (for AC200V input)
voltage
Steady voltage
DC90V (for AC200V input)
Maximum output current
DC1.8A (Steady output)
Over excitation time
0.4 - 1.2s
100MΩ or larger
Insulation resistance(When measured with 1000V megohmmeter)
Insulation withstand voltage
AC2000V for one time or more
Inching(When on-time 1.2 sec or less): 8 cycles/min
Maximum
Constant (When on-time exceeds 1.2 sec):
frequency
Steady30 cycles/min
Allowable ambient temperature-20℃ to 60℃

Part Name
Center ring
Gap adjusting screw
Attachment bolt
Field
Brake coil
Actuating spring
Fan
Cover
Motor shaft
Fan set screw
Lock bolt
Armature
Inner discOuter disc
Spacer bush
Stopper
Hub
Brake adapter plate
Opposite drive end cover
Opposite drive end bearing
Opposite drive end bearing coverBrake cover
V-ringBrake cover gasket
Outdoor coverNotes: 1. The motor for separately ventilated
type has a different shape.
2. There are 3 of [13][14] for ESB-250(horizontal type), and 2 for ESB-250-2(vertical type).
3. The outdoor cover [25] for ESB-250-2(vertical type) has a different shape.

■ Accessory Rectifier (DC Power Supply Unit) Model HD-110M3
Outline Drawing
96

Internal Circuit (Diagram)

84
74
30.5

6

1

3

51

CONTACTOR

4

5

AC
200V

Instant
activation

5.5

7

41

66

4.5

BRAKE

6

2
13.5 13.5 13.5
Terminal screw M4

Figure 8-28

Notes: 1. Model HD-110M3 is an indoor model. Take care to avoid water, etc.
2. Transformer is necessary for operation with 400V class power source. Secondary voltage is 200 – 220V.

65

4Arc-extinguishing circuit

AC200V/220V

2

5
Timer and gate circuit

1

SW

MB

3

8. Daily Inspection and Maintenance- Gap Inspection

Gap Value G (mm)Required value
Limit value(original value)
0.7
2.0(1) Remove the outdoor cover [25] and the cover [8].
(2) Loosen the fan set screw [10] and remove the fan [7].
(3) Pull off the V-ring [23] and remove the brake cover [22].

(4) I nsert a gap gauge between the field [4] and the armature [12] and measure the gap. Measure in 4 locations around the circumference.
(5) Adjustment is required if the gap value is near the limit.

- Gap Adjustment(1) Manually release the brake with following the procedure on P70.
(2) L oosen the stopper [16] on the periphery of the center ring [1], and remove. This will free the gap adjusting screws [2].
(See Figure 8-29)(3) I nsert a gap adjustment bar (An angle plate should be prepared by customer. See Figure 8-31) into the groove of adjustment screw(2) between the outer disk (14) and the center ring (1)								Rotating the gap adjusting bar to the left as seen from the field [4] side, will narrow the gap. (See Figure 8-30)(4) S ix attachment bolts [3] and lock bolts [11] alternately pass through the space between the outer disc [14] and the center ring [1].
Rotating the gap adjustment bar will make the bar touch these bolts. There are 8 equally distributed holes for gap adjusting screws[2]. Adjust the gap G to the required value by repeating (3) each time the gap adjusting bar contacts a bolt.
(5) Select the point where hole and screw hole are closest to the required gap and attach the stopper [16] there.
(6) After returning the manual brake release to its original state, turn power on and off to check brake action.
(7) A ttach the brake cover [22], V-ring [23], fan [7], fan set screw [10], cover [8] and outdoor cover [25]. At this time coat the fan set screw[10] with Three Bond TB2365.

Gap Adjusting Bar Dimension

Gap adjusting bar
4

16

1
1

150mm

14

2

2

Figure 8-29

Figure 8-30

3.5mm

14

14.7±0.1mm

Figure 8-31

66

8. Daily Inspection and Maintenance
8-9 Removing and Installing One-Touch Release Lever①②③

Part Number
1
2
3
4
5
6

Part Name
HolderRelease lever
Release pin
Retaining ring
Brake release
Fan cover

A

A

④

⑤② ④

⑥

③
Figure 8-32

A-A

- Removing One-Touch Release Lever(1) Removing retaining ring [4] (E-retaining ring or shaft retaining C-ring) in 2 locations.
(2) Remove release lever [2] from holder [1].
(3) E xpand release lever [2] to the outside from each side of the lever in turn, removing it from release pin [3]. (Do not expand the release
lever overly).
(4) Remove release pin [3].
(5) Remove fan cover [6].

- Installing One-Touch Release Lever(1) Attach fan cover [6].
(2) Insert release pin [3] into brake release [5] with preventing pin to drop.
(3) Attach release lever [2] to U-hole of release pin [3] by extending release lever [2] to the outside from each side of the lever in turn.
(4) Attach retaining ring [4].
(5) Check that brake is released by pushing release lever [2].
(6) Fix release lever [2] to holder [1].

67

8. Daily Inspection and Maintenance
8-10 Changing the Brake Lining and Inner DiscIf the following conditions occur, ask the nearest authorized maintenance shop to exchange the brake linings and inner discs withnew ones.

(1) FB Brakes (excluding FB-05A1), ESB-250, ESB-250-2
When the thickness of brake lining (FB brake) or inner disc (ESB-250, ESB-250-2) reaches the use limit thickness in Table 8-8(2) FB-05A1
When the brake gap still reaches the limit after the gap adjustment (see P45 and P56)
Table 8-8 Brake Lining, Inner Disc Dimensions
Brake Type

Brake Lining
Inner Disc
Dimension Drawing

FB-05A1
FB-1D
FB-1E
FB-1HE
FB-2E
FB-3E
FB-4E
FB-5E
FB-8E
FB-10E
FB-15E
FB-20
FB-30
ESB-250
ESB-250-2

t0
t0
t0

Original Thickness
T0 (mm)T1 (mm)

t1
t1
t1

t0
t0
t0

t1
t1
t1

T0 (mm)

7.0

−
6.0

8.8

7.8

9.0

8.0

10.4

t0
t0
t0

Usable Thickness Limit

−

8.4

10

6.0

11

7.0

16

12

6.0

1.5

3.6

T1 (mm)−0.3- Brake torque may not be at the prescribed level during initial operation. In such a case turn the brake on and off under as light load as
possible to contact the brake’s friction surfaces.
- When changing the brake lining, replace the boss and leaf springs (for FB-5E – FB-15E, FB-20, FB-30, the gap adjusting nuts are included) as a set.
- After 2 million or more cycles of operation, (for FB-30, ESB-250 and ESB-250-2 1 million cycles or more), or after 10 years or more havepassed since shipment from the factory, inspect to check whether continued operation is possible, even if the lining is not at the usable thickness limit.
- Check the following items concerning the condition of each mechanical part.
Are the linings split or chipped?
Is there any peeling or gap between the lining and the disc?
Does the brake lining or the spline of the inner disc exhibit cracking, chipping, or stepped wear?
Is there any stepped wear on the surfaces around the stud bolts or armature plate?
- Change the brake lining, even if it has not reached the usable thickness limit, in following cases. (1) if 10 or more years have elapsed
since the manufacturing date, (2) the brake is used outdoors or in a high-humidity environment, (3) if it is stored or rested for a long
period of time.

8-11 Changing the V-Ring and Waterproof Seal (Outdoor Type)V-rings and waterproof seals degrade over the years, losing their waterproofing abilities. As a guideline contact the nearest authorized
maintenance shop every 3 years. If the sliding surfaces of oil seals or V-rings show signs of wear or corrosion, replace them with new
ones. Sliding surfaces are made of carbon steel, so rain water, condensation and other factors could cause rust to form and spread.
Because this could lead to oil seal damage, take on-going rust prevention measures.

68

8. Daily Inspection and Maintenance
8-12 Manually Releasing the Brake
To manually release the brake with its power off, operate the brake release mechanism as shown below.

■ FB Brakes (excluding FB-20 and FB-30) (FB-05A1 is an option)(1) F irst, remove the brake release bolts from the 2 opposing angles and remove the release prevention spacers. Reinsert the bolts androtate them with a hexagonal wrench to release the brake. Be careful not to over rotate the brake release bolts. (Rotate the brakerelease bolts while checking to see if the brake is released.) (See Figures 8-33, 8-34)(2) A fter releasing the brake, to return it to its original condition, for safety, return the manual release prevention spacers that were
removed in (1) to their original positions. (See Figure 8-34)

Brake Type
FB-05A1, FB-1D
FB-1E - FB-2E
FB-3E - FB-4E
FB-5E - FB-15E(3) This table shows brake release bolt sizes.

Waterproof seal

Bolt Size
M5
M6
M8
M10
Brake release bolt
Manual release protection spacer

Brake release bolt

Waterproof
cover

When Released

When Operating

Figure 8-33

Figure 8-34

Note: Indoor types do not come with waterproof seals or waterproof covers.

■FB-20, FB-30(1) I n the case of outdoor types, remove the lid on the window part of the outdoor cover [33]. Remove the grommet [28] (indoortype), remove the brake release bolt [2] by using a hexagonal wrench (for an M8 hole bolt), and remove the rubber gasket [3] andthe manual release prevention spacer [4]. The brake will release when you again rotate the bolt by using the hexagonal wrench.
Be careful not to over rotate the brake release bolt. (Rotate the brake release bolt [2] while checking to see if the brake is released.)(See Figure 8-35)(2) A fter releasing the brake, to return it to its original condition, for safety, return the manual release prevention spacer and the rubber
gasket [3] that were removed in (1) to their original positions, and firmly tighten the brake release bolt [2]. (See Figure 8-36)
Next, re-attach the grommet [28] (indoor type) in its original state. In the case of outdoor types, attach the lid on the window partof the outdoor cover [33] as it was before.
- Note that if the rubber gasket [3] and the seal washer [5] for the brake release bolt [2] unit are not attached when returning to theoriginal state, dust-proofing and waterproofing capabilities will be lost.					Also, firmly tighten the brake release bolt [2]. Otherwise waterproofing capability may be lost.				
Also make certain to return the grommet [28] (indoor type) or outdoor cover [33] window lid (outdoor type) to their originalstates.
- If the machine is operated when the brake release bolt has not been returned to its original position, in the worst case it is possible that the manual release would function before maximum gap is obtained, and the brake would cease to function. Therefore,make certain to always operate with the manual release prevention spacer attached.
Brake release bolt
Manual release protection spacer

When Released

When Operating

Figure 8-35

Figure 8-36

69

Seal washer
Rubber packing

8. Daily Inspection and Maintenance■ FB-250, ESB-250-2(1) I n the case of outdoor types, remove the outdoor cover [25]. Remove the cover [8], fan [7] and brake cover [22] (Outdoor Type).
(2) I nsert M12×65 hexagon socket head bolts (prepared by customer) through the manual releasing holes, to the field. (Note that if thehexagon socket head bolts are too long, they will hit the outer disc and deform it.)(3) There are two manual release holes at opposing angles. By using a hexagonal wrench, tighten the bolts equally in turn in turn.
(4) To release the brake, tighten the bolts until the armature and field stick together.
(5) A fter returning the brake to its original state, attach the brake cover [22] (outdoor type), fan [7], and cover [8].			
At this time coat the fan set screw [10] with Three Bond TB2365.							In the case of outdoor types, attach the outdoor cover as it was before.

Manualrelease
hole

Field

Armature
Outer disc
Inner disc

Gap

Adhesion

Hexagonsockethead bolt

Hexagonal
wrenchManualreleasehole

Figure 8-37

Figure 8-38

Figure 8-39

■ One-Touch Release Lever Type (Excluding FB-20, FB-30. FB-05A1 is optional)
All you need to do to release the brake is push the release lever over. (See Figure 8-40)(1) To release the brake, pull the release lever out of the holder, and push it toward the load or anti-load side.		
(Some specifications do not allow pushing the release lever toward the load side.)					Be careful not to push the lever too far. Pushing the lever too far could damage the brake.					(Push the release lever while checking to see if the brake is released.)(2) When operating the motor, make certain to return the lever to its original position and set it inside the holder. Start operation after
confirming that the brake operates properly.
Note: While the lever is held down, the brake remains released. When the lever is released, the brake is applied.
When Operating

When Brake is Manually Released

Premium-Efficiency Motor

Other than Premium-Efficiency Motor
Figure 8-40

70

9. Troubleshooting Common
If any abnormal condition occurs, refer to Table 9-1, 9-2 and promptly take appropriate measures.
If these actions do not solve the issue, immediately contact the nearest authorized maintenance shop.
Table 9-1 Troubleshooting
Problem

The motor will not operate under no load

The motor rotates without a load but theslow speed shaft does not rotate.
The switch overheats
When a load is applied

The slow speed shaft turns with no load

Fuse tripping

Cause

Correction

Power failure

Contact the electric power company.

Defective electric circuit

Check the circuit.

Blown fuse

Replace the fuse.

Protective device is engaged

Fix the problem and re-operate.

Load locking

Check the load and safety device.

Poor switch contact

Adjust the contact unit.

Motor stator coil disconnect

Confer with authorized maintenance shop.

Bearing damage

Confer with authorized maintenance shop.

3-phase is functioning as single-phase

Check the power supply with a voltmeter.
Check the motor, transformer coil, contactor,
fuse, etc. and repair or replace them.

Friction surface of brake is corroded

Request brake cleaning from an authorized
maintenance shop.

Incorrect brake gap adjustment

Re-adjust brake gap.
(See P45 - 66.)

Damage to gear unit due to overloading ofgears, etc.

Confer with authorized maintenance shop.

Insufficient switch capacity

Replace with a specified switch.

Overload

Decrease the load to the specified value.

Insufficient fuse capacity

Replace with a specified switch.

Overload

Decrease the load to the specified value.

Voltage drop
The speed will not increase andOverload
the motor is overheating.
Short-circuited motor stator coilContact the electric power company.
Decrease the load to the specified value.
Confer with authorized maintenance shop.

The key is not inserted

Insert key.

Bearing burnout

Confer with authorized maintenance shop.

Poor adjustment of protection device

Adjust the protection device.

Wiring error

Change the connection.

The lead wire is short circuited.

Confer with authorized maintenance shop.

Poor contact between motor and starter

Make good connection.

Overload

Decrease the load to the specified value.

Voltage drop or riseContact the electric power company.

The ambient temperature is highImprove the ventilation method.

Damaged bearing

Confer with authorized maintenance shop.

Abnormal wear of reducer parts due to overload. etc.

Confer with authorized maintenance shop.

Oil and fat blot or drip from the seal
section of input / output shaft.

Grease applied to the oil seal seeps out at
first.

Wipe off around the oil seal, and observe.

Oil/grease leaks from the contact
surfaces of frame and outside cover.

Damaged oil seal or damaged shaft (or collar) Confer with authorized maintenance shop.

Leakage of oil and grease from themating faces of the casing, etc.

Loose fastener bolts

Tighten fastener bolts correctly.

Damaged oil seal or oil thrower

Consult with authorized maintenance shop.

Excessive oil/grease supply

Remove excess oil/grease.

It stops.
The motor runs in the reverse direction.
Fuse tripping

Excessive temperature rise

Oil leakage

Oil/grease leaks into motor.

71

Common

9. Troubleshooting

Table 9-2 Troubleshooting
ProblemAbnormal sound
Excessive vibration

Abnormal motor sounds

Does not activate

Brake is ineffective

Cause

Correction

Dust and foreign matter in bearings, or damaged bearings

Consult with authorized maintenance shop.

Reducer parts grinding on foreign matter

Consult with authorized maintenance shop.

Reducer parts are damaged

Consult with authorized maintenance shop.

Warping of housing because the installation
surface is not flat

Make the installation base flat or make adjustment using liners, etc.

Resonance due to insufficient rigidity of theinstallation baseReinforce the installation base to increase
rigidity.

Nonalignment of the center of axle withdriven machine

Align the center of axle.

Transmission of vibration from the driven
machineIndividually operate the product to check thesource of the sound.

Foreign objects have entered

Consult with authorized maintenance shop.

Bearing damage

Consult with authorized maintenance shop.

Improper brake gap adjustment

Adjust the brake gap.
(See P45 - 66.)

Wear of the brake lining or inner disc

Request brake lining and inner disc replacement from an authorized maintenance shop.

Brake unit electromagnetic coil burnout

Consult with authorized maintenance shop.

Rectifier damage

Consult with authorized maintenance shop.

A leaf spring in the brake boss unit has comeoff or is damaged.

Consult with authorized maintenance shop.

Forgot to restore the brake release bolt to its
original position

Restore the release bolt.

Improper adjustment after disassembly

Request authorized maintenance shop to readjust.

Not using the quick braking circuit

Change to quick braking circuit.
(See P25 - 34.)

Foreign objects or oil adhesion in brake lining Request cleaning from authorized mainteunit and inner discnance shop.
Slips(Braking takes a longtime)

Overcurrent shut-off

Wear of the brake lining or inner disc

Adjust the brake gap.
Request brake lining and inner disc replacement from an authorized maintenance shop.

Brake gap not uniform

Adjust the brake gap.

Overload

Decrease the load to the specified value.

Brake release bolt not sufficiently restored

Restore the release bolt.

Sudden speed changes

Increase the time for speed changes.

InverterInverter Tripping

Extreme load fluctuation

Decrease load fluctuation.

Overcurrent due toground fault

Ground fault on output side

Take measures to prevent ground fault.

Direct current overcurrent

Short on output side

Take measures to prevent short.
Inspect wiring.

Regenerative overvoltage
Sudden speed reduction
shut-off

Increase the time for speed reduction.
Decrease brake frequency.

Thermal operation

Decrease the load to the specified value.

Overload72

10. Construction Drawings Common
10-1 Construction
1

2

3

4

5

19 20 21 22

7

6

23

8

24

9

25

26

10

27

28

11

12

13

14

29

30

31

32

15

16

17

18

34

35

36

33

Figure 10-1 KHHM Type (Gearmotor) (E.g.: Frame Size 72R-K1)

37

38 39

40

41

42

43

44

Figure 10-2 KHYM Type (Gearmotor) (E.g.: Frame Size 72DA-Y1)

45

46

47

48

49

Figure 10-3 KHF Type (Reducer) (E.g.: Frame Size 72L-F1)

73

50

51

52

Common

10. Construction Drawings

53

54

Figure 10-4 KHH Type (Reducer) (E.g.: Frame Size 115R-K1)

Figure 10-5 KHH Type (Reducer) (E.g.: Frame Size 72DAR-K1)

Table10-1 Principal Parts
Part
Part Name
Number1 Output Shaft
2 Oil seal
3 Output side cover (1)4 O-ring
5 Bearing
6 Gear (third stage)
7 O-ring
8 Output side cover (2)9 Casing
10 Pinion (first stage)
11 Oil filler plug
12 O-ring
13 Oil seal
14 Motor shaft

PartPart Name
Number15 Motor frame
16 Stationary core
17 Rotor core
18 Fan cover
19 Snap ring for C-type hole
20 Spacer
21 Bearing
22 Pinion (third stage)
23 Bevel gear
24 Oil drain plug
25 Seal cap
26 Oil gauge
27 Bevel pinion
28 Bearing

Part
Part Name
Number
29 Gear (first stage)
30 Joint plate
31 Motor joint cover
32 Bearing
33 Rotor conductor
34 Stationary coil
35 Bearing
36 Fan37 Hollow shaft
38 Snap ring for C-type hole
39 Spacer
40 Casing cover
41 Coupling bush42 Coupling cover

74

Part
Part Name
Number43 Oil seal
44 CYCLO reducer
45 O-ring
46 Flange
47 Bearing
48 Bearing
49 Input shaft cover
50 Collar
51 Oil seal
52 Input shaft
53 Fan cover
54 Fan11. Warranty Common
The scope of warranty of our delivered products is limited only to what we manufactured.
Warranty (period and description)

PeriodThe warranty period applies only to new products and represents 18 months after the shipment or 12 months after theactual operation, whichever is shorter.
If the product failed within the warranty period, in the case where mounting is done properly, connection and maintenance & administration are followed according to the maintenance manual, and the product is properly run basedon the specification on the catalog or under conditions agreed between us, we will repair or provide an alternative

Description

product at our discretion for free of charge, except the exclusions below
However, as far as the product is connected with customers' other devices, we will not indemnify those expenses on
dismounting from/mounting on the devices, etc. and other associated construction expenses, transportation expenses and opportunity loss and operation loss the customers suffered from, and other indirect damages.
The following items will be excluded from the warranty:
1. A breakdown resulting from defects in the mounting of the product and connection with other devices, etc.
2. A breakdown resulting from insufficient maintenance & administration and improper handling of the product, including a case that the product is not stored according to our defined storage manual.
3. A breakdown resulting from operation which does not fall within our specification and other operation conditions

Exclusionfrom thewarranty

and use status we hardly can know or a failure caused by the use of lubricant which we do not recommended.
4. A breakdown resulting from defects, special specification, etc of device prepared and connected by customer.
5. A breakdown resulting from modification or reconstruction of the product.
6. A breakdown resulting from defects in parts supplied or specified by customers.
7. A breakdown caused by inevitable force including earthquake, fire, flood disaster, salt damage, gas damage, andlightning strike, etc.
8. W
 arranty of natural wear and tear, abrasion, and deterioration of consumable parts such as a bearing and oil seal,etc. under normal usage.
9. A breakdown caused for reasons not attributable to each of the above item.

75

【MEMO】

76

Worldwide Locations
U.S.A
Sumitomo Machinery Corporation of America(SMA)
4200 Holland Blvd. Chesapeake, VA 23323, U.S.A.
TEL (1)757-485-3355 FAX (1)757-485-7490
CanadaSM Cyclo of Canada, Ltd. (SMC)
1453 Cornwall Road, Oakville, Canada ON L6J 7T5
TEL (1)905-469-1050 FAX (1)905-469-1055
MexicoSM Cyclo de Mexico, S.A. de C.V. (SMME)
Av. Desarrollo 541, Col. Finsa, Guadalupe,
Nuevo León, México, CP67132
TEL (52)81-8144-5130 FAX (52)81-8144-5130
BrazilSumitomo Industrias Pesadas do Brasil Ltda.
(SHIB)
Rodovia do Acucar (SP-075) Km 26
Itu, Sao Paulo, Brasil
TEL (55)11-4886-1000 FAX (55)11-4886-1000
Chile
SM-Cyclo de Chile Ltda. (SMCH)
Camino Lo Echevers 550, Bodegas 5 y 6,
Quilicura, Región Metropolitana, Chile
TEL (56)2-892-7000
FAX (56)2-892-7001
Argentina
SM-Cyclo de Argentina S.A. (SMAR)
Ing Delpini 2230, B1615KGB Grand Bourg,
Malvinas Argentinas, Buenos Aires, Argentina
TEL (54)3327-45-4095 FAX (54)3327-45-4099
GuatemalaSM Cyclo de Guatemala Ensambladora, Ltda.
(SMGT)
Parque Industrial Unisur, 0 Calle B 19-50 Zona 3,
Bodega D-1 Delta Bárcenas en Villa Nueva, Guatemala
TEL (502)6648-0500 FAX (502)6631-9171
Colombia
SM Cyclo Colombia, S.A.S. (SMCO)
Parque Industrial Celta, Km 7.0 Autopista Medellín,
Costado Occidental, Funza, Cundinamarca, Colombia
TEL (57)1-826-9766

Austria
Sumitomo (SHI) Cyclo Drive Germany GmbH(SCG)SCG Branch Austria Office
Gruentalerstraße 30A, 4020 Linz, Austria
TEL (43)732-330958 FAX (43)732-331978

Korea
Sumitomo (SHI) Cyclo Drive Korea, Ltd. (SCK)
Room #913, Royal Bldg, Saemunan-ro 5 gil 19, Jongro-gu,
Seoul, Korea 03173
TEL (82)2-730-0151
FAX (82)2-730-0156

Belgium
Hansen Industrial Transmissions NV (HIT)
Leonardo da Vincilaan 1, Edegem, Belgium
TEL (32)34-50-12-11 FAX (32)34-50-12-20

TaiwanTatung SM-Cyclo Co., Ltd. (TSC)
22 Chungshan N. Road 3rd., Sec. Taipei, Taiwan 104,
R.O.C.
TEL (886)2-2595-7275 FAX (886)2-2595-5594

FranceSM-Cyclo France SAS (SMFR)
8 Avenue Christian Doppler, 77700 Serris, France
TEL (33)164171717
FAX (33)164171718
Italy
SM-Cyclo Italy Srl (SMIT)
Via dell' Artigianato 23, 20010 Cornaredo (MI), Italy
TEL (39)293-481101 FAX (39)293-481103
Spain
SM-Cyclo Iberia, S.L.U. (SMIB)
C/Gran Vía Nº 63 Bis, Planta 1, Departamento 1B
48011 Bilbao–Vizcaya, SpainTEL (34)9448-05389 FAX (34)9448-01550
United Kingdom
SM-Cyclo UK Ltd. (SMUK)Unit 29, Bergen Way, Sutton Fields Industrial Estate,
Kingston upon Hull, HU7 0YQ, East Yorkshire,
United Kingdom
TEL (44)1482-790340 FAX (44)1482-790321
TurkeySM Cyclo Turkey Güç Aktarım Sis. Tic. Ltd. Sti.
(SMTR)
Barbaros Mh. Çiğdem Sk. Ağaoğlu, Office Mrk. No:1 Kat:4 D.18
Ataşehir, İstanbul, Turkey
TEL (90)216-250-6069 FAX (90)216-250-5556
India
Sumi-Cyclo Drive India Private Limited (SDI)
Gat No. 186, Raisoni Industrial Park, Alandi Markal Road,
Fulgaon-Pune, Maharashtra, India
TEL (91)96-0774-5353

Peru
SM Cyclo de Perú, S.A.C (SMPE)
Jr. Monte Rosa 255, Oficina 702, Lima,
Santiago de Surco, PerúTEL (51)1-713-0342
FAX (51)1-715-0223

China
Sumitomo (SHI) Cyclo Drive Shanghai, Ltd.
(SCS)
11F, SMEG Plaza, No. 1386 Hongqiao Road,
Changning District, Shanghai, China 200336
TEL (86)21-3462-7877 FAX (86)21-3462-7922

Germany
Sumitomo (SHI) Cyclo Drive Germany GmbH
(SCG)
Cyclostraße 92, 85229 Markt Indersdorf, Germany
TEL (49)8136-66-0
FAX (49)8136-5771

Hong Kong
SM-Cyclo of Hong Kong Co., Ltd. (SMHK)
Room 19, 28th Floor, Metropole Square, No.2 On
Yiu Street, Shatin, New Territories, Hong Kong
TEL (852)2460-1881 FAX (852)2460-1882

Singapore
Sumitomo (SHI) Cyclo Drive Asia Pacific Pte.
Ltd. (SCA)
15 Kwong Min Road, Singapore 628718
TEL (65)6591-7800
FAX (65)6863-4238
Philippines
Sumitomo (SHI) Cyclo Drive Asia Pacific Pte. Ltd.
Philippines Branch Office (SMPH)
C4 & C5 Buildings Granville Industrial Complex, Carmona,
Cavite 4116, Philippines
TEL (63)2-584-4921
FAX (63)2-584-4922
Vietnam
SM-Cyclo (Vietnam) Co., Ltd. (SMVN)
Factory 2B, Lot K1-2-5, Road No. 2-3-5A,
Le Minh Xuan Industrial Park, Binh Chanh Dist.,
HCMC, Vietnam
TEL (84)8-3766-3709 FAX (84)8-3766-3710
Malaysia
SM-Cyclo (Malaysia) Sdn. Bhd. (SMMA)
No.7C, Jalan Anggerik Mokara 31/56, Kota Kemuning,
Seksyen 31, 40460 Shah Alam, Selangor Darul Ehsan,
Malaysia
TEL (60)3-5121-0455 FAX (60)3-5121-0578
Indonesia
PT. SM-Cyclo Indonesia (SMID)
Jalan Sungkai Blok F 25 No. 09 K, Delta Silicon III,
Lippo Cikarang, Bekasi 17530, Indonesia
TEL (62)21-2961-2100 FAX (62)21-2961-2211
Thailand
SM-Cyclo (Thailand) Co., Ltd. (SMTH)
195 Empire Tower, Unit 2103-4, 21st Floor, South
Sathorn Road, Yannawa, Sathorn, Bangkok 10120,
ThailandTEL (66)2670-0998
FAX (66)2670-0999
Australia
Sumitomo (SHI) Hansen Australia Pty. Ltd.
(SHAU)
181 Power St, Glendenning, NSW 2761, Australia
TEL (61)2-9208-3000 FAX (61)2-9208-3050
Japan
Sumitomo Heavy Industries, Ltd. (SHI)
ThinkPark Tower, 1-1 Osaki 2-chome, Shinagawa-ku,
Tokyo 141-6025, JapanTEL (81)3-6737-2511 FAX (81)3-6866-5160

Specifications, dimensions, and other items are subject to change without prior notice.

Power Transmission & Controls Group
Headquarter ThinkPark Tower, 1-1 Osaki 2-chome, Shinagawa-ku, Tokyo 141-6025, Japan

No.NM2102E-2.4

EA12 Printed 2020.12