５-phase Stepping Motor Driver

GDB-5F40
Instructions Manual(For designers' use)

Please ensure to read and understand thisInstructions Manual before using the product.
Please keep this Instructions Manual at handso that it is always available for reference.

MN0091-1

Instructions Manual

Introduction
This Instructions Manual describes the safe and proper method of handing"5-phase Stepping Motor Driver GDB-5F40" with emphasis on the specifications,assuming that our readers are engaged in designing of control devices
incorporating stepping motors.
Please ensure to read and understand this Instructions Manual
before using the product.
Please keep this Instructions Manual at handso that it is always available for reference.

-2-

Instructions Manual

Descriptions in this manual on safety matters:
This product must be operated and used properly.
Otherwise, or when it is operated and used erroneously, unforeseen accidents
may occur, causing physical injuries or property damages.
Majority of these accidents can be avoided if you are well informed ofhazardous circumstances in advance.
Consequently, this instructions manual describes all the hazardous anddangerous circumstances and situations which can be foreseen and anticipatedas well as necessary precautions.
All the above descriptions are being titled by the following symbol-marks andsignal-words, namely:

 WARNING

 A

I N

Represents warnings ignorance of which can cause accidents
involving fatal or serious physical injuries.
Represents cautions ignorance of which can cause accidents
involving minor physical injuries or property damages.

-3-Instructions Manual

Introduction
Descriptions in this manual on safety matters:
CONTENTS

PAGE

１． Safety
1-1. Safety Precautions
1-2. Safety Information for Handling

6
7

２． Overview
2-1. Characteristics
2-2. Product Configuration
2-3. Appearance

10
10
10

３． Name and Function of Each Section
3-1. Signal I/O Connector （J1）3-2. DC Input/Motor Output Connector （J2, J3)
3-3. POWER LED
3-4. O.H.A LED
3-5. Operating Section

11
12
12
12
13

４． Setting
4-1. Setting MOTOR SELECT switch
4-2. Setting STEP TABLE switch and STEP ANGLE SELECT switch
4-3. Setting HOLD CURRENT SELECT switch
4-4. Setting DRIVE CURRENT SELECT switch
4-5. Setting PULSE INPUT TYPE SELECT switch
4-6. Setting HOLD SWITCHING TIME SELECT switch

14
15
16
17
18
19

５． Installation
5-1. Conditions for Installation
5-2. Mounting Method

20
21

６． Connection
6-1. Overview of Connection Configuration
6-2. Connecting Signal I/O Connector （J1）
6-3. Connecting DC Input/Motor Output Connector （J2, J3）
6-4. Inputting Power

22
23
24
25

７． Confirmation of Setting and Connection
7-1. Check Points

26

-4-

Instructions Manual

PAGE

８． Maintenance and Check-up
8-1. Maintenance and Check-up
8-2. Troubleshooting

27
28

９． Storing and Disposal
9-1. Storing
9-2. Disposal

29
29

１０． Specifications
10-1. General Specifications
10-2. I/O Signal(1) Example Circuit Connection(2) Drive pulse input(CW,CCW)(3) Motor excitation stop input (M.F)(4) Phase signal output(P.O)(5) Overheat alarm signal output and overheat alarm LED (O.H.A)(6) Step angle switch input(C.S)
10-3. Dimensions
10-4. Applicable Motors
10-5. Torque Characteristics
10-6. Conforming to Europe standards
The main parts which revised by this manual

-5-

30
31
32
33
34
35
36
37
38
39
45

Instructions Manual

１．Safety１－１．Safety Precautions
 WARNING(1) This product is not designed or manufactured for application for equipment
requiring high level of reliability such as equipment related to nuclear
energy, aeronautics-related equipment, automobiles, ships, medical appliances
directly handling the human body and equipment that might seriously affectproperties.
(2) Do not use or keep the product in explosive or corrosive environments,
in the presence of flammable gases, locations subjected to splashing water,fine particles, soot, steam, or exposed to radiation or direct sunshine.
Doing so may cause injury or fire.
(3) For the driver's power supply, use a DC power supply with reinforced insulation
on its primary and secondary sides.
Failure to do so may cause electric shock.
(4) This product is designed for use within machinery,
within an enclosure.
Failure to do so may cause injury.

so it should be installed(5) Do not transport, move, install the product, perform connections or inspections
when the power is on.
Doing so may cause electric shock, injury or fire.
(6) Only qualified personnel are allowed to transport, move, install the product,
perform connections or inspections.
Failure to do so may cause injury or fire.

 A

I N

(7) Do not touch the driver during operation or immediately after stopping.
Doing so may cause burn on the skin due to overheating of the driver.
(8) Ensure to use this product according to the method specified
in the Instructions Manual and within the specifications.
(9) Depending on the operational conditions, the stepping motor may step out when
it is on holding-state or driving-state.
In particular, the load in transport may fall if the motor steps out on thevertical drive (such as the Z-axis).
Start operation after test run for deliberate confirmation of operation.
(10) Provide fail-safe measures so that the entire system may operate in a safe
mode even in cases of the external power supply failure, disconnection of thesignal line, or any failure on the driver.

-6-

Instructions Manual

１－２．Safety Information for Handling●Overall: A

I N

Do not touch the driver during operation
or immediately after stopping.
it may cause burn on the skin due tooverheating of the driver.

●When setting up the MOTOR SELECT switch:
 A

I N

Erroneous setting may cause burn on theskin due to overheating of the motor.
Ensure correct setting.

●When setting up the STEP ANGLE SELECT switch:
 A

I N

Erroneous setting may cause breakage ofthe machine or injury due to unexpectedrotation of the motor.
Ensure correct setting.

●When setting up the HOLD CURRENT SELECT switch:
 A

I N

A high setting value may cause burn on theskin due to overheating of the motor.
Do not select a high value beyond therequired.

-7-

Instructions Manual●When setting up the DRIVE CURRENT SELECT switch:
 A

I N

A high setting value may cause burn on theskin due to overheating of the motor.
Do not select a high value beyond therequired.

●When setting up the PULSE INPUT TYPE SELECT switch:
 A

I N

Erroneous setting may cause breakage ofthe machine or injury due to unexpectedrotation of the motor.
Ensure correct setting.

●When installing: WARNING
Overheating may cause fire.
Mount it on a noncombustible member.
Keep it away from combustibles.

●When connecting the DC Input/Motor Output Connectors (J2, J3):
 A

I N

Erroneous connection may cause
breakage of the motor or the driver.
Correctly connect the DC Input/Motor
output connector.

●When inputting power:
 A

I N

Breakage of the machine or injury isapprehended due to unexpected behavior of
the motor.
Maintain the state where
emergency stop is enabled at any time.

-8-Instructions Manual●When inputting the motor excitation stop (M.F) signal:
 A

I N

Deterioration of the holding power withthe motor may cause breakage of the machineor injury.
Check safety before inputting.

●When the overheat alarm (O.H.A) signal is output:
WARNING
Overheating may cause fire.
Stop operation upon output of this signal.

●When performing maintenance and checking:WARNING
Injury or fire is apprehended due to
unexpected behavior.
Do not replace fuse.
Do not disassemble, repair or modify.

-9-Instructions Manual

２．Overview
２－１．Characteristics
GDB-5F40 is a driver for a 5-phase stepping motor with DC +24V input.
It can drive a 5-phase stepping motor with 0.75A/phase and 1.4A/phase.
Step angles can be selected from seventeen step angles ranging from 1 division to4000 division of the basic angle.
HOLD CURRENT and DRIVE CURRENT can be set up.
● Applicable motors and setting for each motor are given in the table"10-4. Applicable Motors".

２－２．Product Configuration
The product consists of the main frame and the accessories.
●GDB-5F40●Housing for J1 (51103-1200:Molex)●Housing for J2 (51067-0200:Molex)●Housing for J3 (51067-0500:Molex)●Contact for J1 (50351-8100:Molex)●Contact for J2,J3 (50217-9101:Molex)

One unit
One unit(accessory)
One unit(accessory)
One unit(accessory)
14 contacts (accessories,2 for spares)
9 contacts (accessories,2 for spares)

２－３．Appearance-10-

Instructions Manual

３．Name and Function of Each Section
３－１．Signal I/O Connector（Ｊ１）
GDB-5F40
J1
1 CW+

CW drive pulse signal input terminal●Directs the motor to operate CW.

2 CW3 CCW+

CCW drive pulse signal input terminal●Directs the motor to operate CCW.

4 CCW5 M.F+

Motor excitation stop signal input terminal●Shuts off output current to drive the motor.

6 M.FPhase signal output terminal
7 P.O●Outputs the signal when the motor-excitation
state is the excitation home position.
GND terminal for P.O signal.

8 R.GND
Overheat alarm signal output terminal
9 O.H.A●Outputs the signal when internal temperatureof the driver has reached approx. 70℃ or more.
GND terminal for O.H.A signal.

10 R.GND
11 C.S+

Step angle switching signal input terminal●Switches the step angle by 20 division.

12 C.S--11-

Instructions Manual

３－２．DC Input/Motor Output Connector（Ｊ２，Ｊ３）
GDB-5F40
J3
VIO
BLU
RED
GRY
BLK
YLW
WHT
ORN
GRN
BRN

BLK 1
GRN 2
ORN 3
RED 4

Motor output terminal●Outputs current to drive the motor.

BLU 5
J2

DC+24V DC+ 1
DC input terminal
0V DC- 2●Power input terminal.
DC power supply is connected.

３－３．POWER LED
POWER LED(GREEN) comes on upon inputting power.

３－４．O.H.A LED
O.H.A LED（RED）comes on when internal temperatureof the driver has reached approx. 70℃ or more.

-12-Instructions Manual
３－５．Operating Section

Function

Name of Operating Section

HOLD CURRENT SELECT switch Selects HOLD CURRENT.
DRIVE CURRENT SELECT switch Selects DRIVE CURRENT.
Selects a step angle.
STEP ANGLE SELECT switch
Function

Name of Operating Section
4 MOTOR SELECT switch
PULSE INPUT TYPE
3
SELECT switch
HOLD SWITCHING TIME
2
SELECT switch
1 STEP TABLE switch

Use it with OFF.
Selects a pulse input type.
DRIVE/HOLD CURRENT automatic switchingtime is selected.
Selects STEP TABLE.

Name of Operating Section
4
3
2
1

Sub adjustment switch
Sub adjustment switch
Sub adjustment switch
Sub adjustment switch

Function
Use it with OFF.
Use it with OFF.
Use it with OFF.
Use it with OFF.

-13-

Factory
Setting〔No.3〕〔No.F〕〔No.1〕
Factory
Setting[OFF]〔OFF(2P)〕[OFF(DH1)]〔OFF(S.T1)〕
Factory
Setting
[OFF]
[OFF]
[OFF]
[OFF]

Instructions Manual

４．Setting
４－１．Setting MOTOR SELECT switch
 A

I N

Erroneous setting may cause burn on
the skin due to overheating of the
motor.
Ensure correct setting.
Set this switch with power OFF.
The switch is factory-set to [OFF].

(1) Use it with [OFF].

-14-

Instructions Manual

４－２．Setting STEP TABLE switch and STEP ANGLE SELECT switch
 A

I N

Erroneous setting may cause breakage ofthe machine or injury due to unexpectedrotation of motor.
Ensure correct setting.
The step angle is set up with the S.T SEL switch andthe STEP SEL switch.
The step angle can be selected from seventeen different
types of step angles.
The switch is factory-set to [S.T1] [No.1].
Set S.T SEL switch with power OFF.
(1) Turn power [OFF].

(2) Set the step angle required by combining the S.T SEL switch
and the STEP SEL switch No.
●Relationship between the S.T SEL switch, the STEP SEL switch No. and the step
angle.
S.T SEL switch〔OFF：S.T1〕
STEP SEL No.

０
１
２
３
４
５
６
７
８
９
Ａ
Ｂ
Ｃ
Ｄ
Ｅ
Ｆ

1/
Divisions
1/1
1/2
1/4
1/10
1/20
1/40
1/100
1/200
1/400
1/800
1/10001/20001/4000－－－S.T SEL switch〔ON：S.T2〕

step angle(°)
0.72°motor
0.72
0.36
0.18
0.072
0.036
0.018
0.00720.00360.00180.00090.00072
0.000360.00018－－－

STEP SEL No.

０
１
２
３
４
５
６
７
８
９
Ａ
Ｂ
Ｃ
Ｄ
Ｅ
Ｆ

1/
Divisions
－
－
－
－
－
－
－
－
－
－
－
－
1/8
1/16
1/80
1/160

step angle(°)
0.72°motor
－
－
－
－
－
－
－
－
－
－
－
－
0.09
0.045
0.009
0.0045●Step angles are theoretical values.
●Drive with two types of step angles are provided by combining the C.S signal.
●When the step angle is switched from the setting of 1000, 2000 or 4000
divisions to other number of divisions(1～800), change of the excitation position
may be caused.

-15-

Instructions Manual

４－３．Setting HOLD CURRENT SELECT switch
 A

I N

A high setting value may cause burn on theskin due to overheating of the motor.
Do not select a high value beyond therequired.
HOLD CURRENT is set up with the HOLD I. SEL switch.
The ratio of HOLD CURRENT to DRIVE CURRENT can be selected.
The switch is factory-set to [No.3 (approx 40%)].

(1) Set the HOLD I.SEL switch No. to the ratio of HOLD CURRENT to DRIVE CURRENT
required.
●Relationship between the HOLD CURRENT.
Ratio of HOLD CURRENT（％）＝

HOLD CURRENT
DRIVE CURRENT

×100

Ratio of HOLD CURRENT

DRIVE I.SEL〔No.0～No.2〕
HOLD I.SEL No.

０
１
２
３
４
５
６
７
８
９

Ratio of
HOLD CURRENT(%)
－
20
30
40
50
60
70
80
90
100

DRIVE I.SEL〔No.3～No.F〕
HOLD I.SEL No.

０
１
２
３
４
５
６
７
８
９

Ratio of
HOLD CURRENT(%)
10
20
30
40
（Factory setting）
50
60
70
80
90
100

● HOLD CURRENT changes relative to DRIVE CURRENT setting.
The ratio of HOLD CURRENT set the switch No. to [No.9] : 100% represents
the same as the setting for DRIVE CURRENT.
● When the DRIVE I.SEL switch is set to No.0 ～ No.2, the useful rangeof the HOLD I.SEL switch becomes No.1 ～ No.9.
●The greater the ratio of HOLD CURRENT grows, the more heat the motor
generates when is on holding-state.

-16-

Instructions Manual

４－４．Setting DRIVE CURRENT SELECT switch
 A

I N

A high setting value may cause burn on theskin due to overheating of the motor.
Do not select a high value beyond therequired.
DRIVE CURRENT is set up with the DRIVE I.SEL switch.
The switch is factory-set to [No.F].

(1) Set the switch No. to the setting specified in the table "10-4. Applicable Motors."●Relationship between the DRIVE I.SEL switch and DRIVE CURRENT.

switch No.
０
１
２
３
４
５
６
７
８
９
Ａ
Ｂ
Ｃ
Ｄ
Ｅ
Ｆ

A/phase
0.30
0.325
0.35
0.40
0.50
0.60
0.70
0.75
0.80
0.90
1.05
1.15
1.20
1.25
1.30
1.35

（Factory setting）-17-

Instructions Manual

４－５．Setting PULSE INPUT TYPE SELECT switch
 A

I N

Erroneous setting may cause breakage ofthe machine or injury due to unexpectedrotation of motor.
Ensure correct setting.

Pulse input method is set up with the SPI SEL switch.
Set this switch with power OFF.
The switch is factory-set to 2-pulse input method[2P].
(1) Turn power [OFF].
(2) Set the SPI SEL [2P/1P] switch.
SPI SEL

Input typeON

1PULSE (1P)OFF

2PULSE (2P)

● When the motor is operated with two pulse signal inputs of CW and CCW,
set the SPI SEL switch to [OFF(2P)].
● When the motor is operated with the pulse signal and direction signal
input, set the SPI SEL switch to [ON(1P)].
● In the case that 1-pulse input method is selected, the CCW terminal becomes
direction signal input designating the direction of the motor rotation.
Drive pulse set to the CW terminal(CW+,CW-).
Photo-coupler OFF ： CCW direction

CCW terminal(CCW+,CCW-)
direction set

Photo-coupler ON ： CW direction● The input timing is same with 2-pulse input method and 1-pulse input method .
As for input timing, refer to "10-2. (2)Drive pulse input（CW, CCW)"-18-

Instructions Manual

４－６．Setting HOLD SWITCHING TIME SELECT switch
DRIVE/HOLD CURRENT automatic switching time is set up
with the DHT SEL switch.
The switch is factory-set to [DH1].

(1) Set the DHT SEL [DH1/DH2] switch.
DHT SEL

Hold Switching
Time

ON

DH2(16ms)

OFF

DH1(150ms)-19-

Instructions Manual

５．Installation
５－１．Conditions for Installation
 WARNING
Overheating may cause fire.
Mount it on a noncombustible member.
Keep it away from combustibles.

(1) Designed for incorporating into equipment used indoors, this product requires
to be installed in the following environment:●Indoors (where it is not exposed to direct sun).
●Where ambient temperature and humidity are controlled within the range set
out in the specifications.
●Where there is no explosive, corrosive or inflammable gas.
●Where it can be protected from dust, salt or iron powder.
●Where the product main frame is not exposed to direct vibration or shock.
●Where it is not exposed to splashes of water, oil or chemicals.

(2) Install the driver at least 15mm away from other equipment.

15mm or more
15mm or more
GDB-5F40

GDB-5F40

15mm or more
15mm or more

(3) Considering heat release, control the ambient temperature around the driver
within the specified value.
● Take measures against accumulation of heat such as allowing generous spacearound the driver or installing a fan so that heat release is taken care of.
● Install the driver securely in contact with metal or other substance withadequate heat conductivity.
(4) In the case that the overheat alarm signal is output, perform the cooling measureof the mounting plate is enlarged or compulsion air cooling etc.
Use the driver on the condition that the overheat alarm signal is not output.
(5) Do not allow standing or placing anything heavy on the product.

-20-

Instructions Manual

５－２．Mounting Method
The round holes on the main body are used.

The following items are required:●M-3 screw (8mm or more in length):●M-3 spring washer:●M-3 flat washer:(1) Fix the product at the two round holes on the main body.
●Mounting example

-21-

2
2
2

Instructions Manual

６．Connection
６－１．Overview of Connection Configuration
MOTOR
DC Power Supply
DC+24V
0V(GND)
GDB-5F40
Twistedpair wireJ3 1 2 3 4 5
J1
1
2
3
4
5
6
7
8
9
10
11
12

CWP
CWP
CCWP
CCWP
+COM
M.F
P.O
R.GND
O.H.A
R.GND
+COM
C.S

J2 1 2
DC+
DC-

User
Controller

CW+
CWCCW+
CCWM.F+
M.FP.O
R.GND
O.H.A
R.GND
C.S+
C.S-

●Connect only one motor to one driver.
●Do not power ON/OFF by the relay etc. in the output side of the DC power supply.
●Use twisted pair wire for the CW/CCW input signal line.
●Provide shielding for the signal line where considerable noise is generated.
●Use the wire material of the characteristic that is difficult to burn.
●Provide shielding for the motor line if it generates significant noise.
●For the driver's power supply, use a DC power supply with reinforced insulation
on its primary and secondary sides.
〔Example configuration〕
The metallic enclosure and shielded wires work to shield noise.
Metal Enclosure

Metal Enclosure
ShieldMetal Enclosure

ShieldUser
Controller

MOTOR
GDB-5F40

GroundingGrounding-22-

GroundingInstructions Manual

６－２．Connecting Signal I/O Connector（Ｊ１）
The following items are required:●Housing for J1 (51103-1200:Molex)●Contact for J1 (50351-8100:Molex)●Manually operated crimping tool
for AWG28-22(57295-5000:Molex)

One unit(accessory)
12 contacts (accessories)
One unit(1) Crimp the contact to the cable used for wiring.
(2) Insert the contact into the housing.
Make sure that the housing No. and the connector No. on the main frame arematched before inserting the contacts.
(3) Connect the housings to the connectors on the main frame.
●The contacts for J1 are 12 pieces.
●When inserting, keep pushing J1 housing into the connectors until it is locked.
Also, check if the contacts are not displaced from the housing.
●In wiring, isolate the J1 signal lines from equipment that may be
a source of noise, the power line and the motor line.

(Surface on which the contacts are inserted)
Housing for J1

User
Controller
CWP
CWP
CCWP
CCWP
+COM
M.F
P.O
R.GND
O.H.A
R.GND
+COM
C.S

〈Crimping〉〈Wiring〉 〈Insertion〉 〈Connection〉
Contact Housing
2
for J1J1(0.15mm or more)
1
1 CW+
2
2 CW3 CCW+
34 CCW45 M.F+
5
6 M.F67 P.O
7
8 R.GND
8
9 O.H.A
9
10 R.GND
10
11 C.S+
11
12
12 C.S--23-

GDB-5F40
Drive pulse input
Drive pulse input
Motor excitation
stop input
Phase signal output
Overheat alarm
signal output
Step angle
switching inputInstructions Manual

６－３．Connecting DC Input/Motor Output Connector（Ｊ２，Ｊ３）
 A

I N

Erroneous connection may cause
breakage of the motor or the driver.
Correctly connect the DC Input/Motor
output connector.

The following items are required:●Housing for J2 (51067-0200:Molex)●Housing for J3 (51067-0500:Molex)●Contact for J2,J3 (50219-9101:Molex)●Manually operated crimping tool
for AWG24-18(57189-5000:Molex)

One unit(accessory)
One unit(accessory)
7 contacts (accessories)
One unit(1) Crimp the contact to the cable used for wiring.
(2) Insert the contact into the housing.
Make sure that the housing No. and the connector No. on the main frame arematched before inserting the contacts.
(3) Connect the housings to the connectors on the main frame.
● The contacts for J2(for DC input) are 2 pieces, and for J3(motor output)
are 5 pieces.
● When inserting, keep pushing J2,J3 housings into the connectors until it islocked. Also, check if the contacts are not displaced from the housing.
(Surface on which the contacts are inserted)
Housing for J2

Housing for J3〔DC input Connector〕〈Connection〉
GDB-5F40
Housing
for J2J2
DC+24V DC+ 1

1〈Crimping〉〈Insertion〉〈Wiring〉
Contact(0.3mm 2 or more)

DC
Power Supply
DC+24V

2

0V DC- 2

2(0.3mm or more)

0V(GND)●Do not power ON/OFF by the relay etc. in the output side of the DC power supply.

-24-

Instructions Manual〔Motor output Connector〕〈Connection〉〈Crimping〉〈Insertion〉〈Wiring〉
GDB-5F40
Housing Contact(0.3mm 2 or more,
for J3J35m Max.)
VIO
BLK 1
1
BLU
RED
GRN 2
2
GRY
BLK
ORN 3
3
YLW
WHT
RED 4
4
ORN
GRN
5
BLU 5
BRN

〈Connection〉〈Crimping〉〈Insertion〉〈Wiring〉
GDB-5F40
Housing Contact(0.3mm 2 or more,
for J3J35m Max.)
VIO
BLK 1
1
BLU
RED
GRN 2
2
GRY
BLK
3
ORN 3
YLW
WHT
RED 4
4
ORN
GRN
BLU 5
5
BRN

Leads of the motor
Violet/Blue
Red/GrayBlack/Yellow
White/Orange
Green/Brown

Leads of the motor
Black
Green
OrangeRed
Blue●Color indications for the motor crimping J3 represent colors of the leads ofthe motor.
●Use a cable of 5m or less for the motor cable .

６－４．Inputting Power
 A

I N

Breakage of the machine or injury isapprehended due to unexpected behavior of
the motor.
Maintain the state where
emergency stop is enabled at any time.

(1) Input the DC power supply (DC+24V) in the cable that connected to No.1 and No. 2
terminals of J2.

-25-

Motor

Motor

Instructions Manual

７．Confirmation of Setting and Connection
７－１．Check Points
This product requires different switch setting and motor wiring depending on
the motor used.
Check if the switch setting and the motor wiring are correctly performed.

Check Points
Setting of
MOTOR SELECT switch
Setting of
PULSE INPUT TYPE SELECT switch
Setting of HOLD SWITCHING TIME
SELECT switch
Setting of
STEP TABLE switch
Setting of STEP ANGLESELECT switch
Setting of DRIVE CURRENT
SELECT switch
Setting of HOLD CURRENT
SELECT switch

Check
MOTOR SEL(OFF)SPI SEL(1P/2P)DHT SEL(DH1/DH2)
S.T SEL(S.T1/S.T2)
STEP SEL(switch No.)DRIVE I.SEL(switch No.)HOLD I.SEL(switch No.)

Connection of J1
Connection of J2

DC+, DC-

Connection of J3

MOTOR

-26-

Remarks

Instructions Manual

８．Maintenance and Check-up
８－１．Maintenance and Check-up
WARNING
Injury or fire is apprehended due to
unexpected behavior.
Do not replace fuse.
Do not disassemble, repair or modify.

(1) As for maintenance inspections the engineer of the specialty shall do it.
(2) We recommend that the following check-ups should be performed periodically:●Checking for any loosened contact on the connectors.
●Checking for any flaw and crack on the cabling.
(3) In case of failure, return the driver to us and have it repaired.

-27-

Instructions Manual

８－２．Troubleshooting

Trouble1. POWER LED does notcome on.

Check Item

Assumed Cause

・Connection of power supply. ・Wiring error with power
supply.
・Value of power voltage.
・Power voltage failure.
・Driver failure.

2. The motor is not excited. ・Connection of the motor to(It can be easily
the driver.
rotated by hand.)・ON/OFF status of the M.F
signal.
・Value of the HOLD CURRENT
SELECT switch.

・Wiring error with the motor
and the driver.
・The M.F signal is input.
・The setting for HOLD CURRENT
is too low.
・Driver failure.

3. The motor does not rotate. ・The same check items as
The motor behaves
those under item 2 above.
abnormally.
・Setting of the MOTOR SELECT ・Wrong setting for the MOTOR
The motor steps out.
switch.
selection.
・Setting of the PULSE INPUT ・Wrong setting for the pulse
TYPE SELECT switch.
input type.
・Connection of the pulse
・Wiring error with the pulse
signal.
signal line.
・Voltage and wave form of the ・Pulse signal of wrong
pulse signal.
specifications.
・Setting of the DRIVE CURRENT ・DRIVE CURRENT is too low.
SELECT switch.
・Setting of the STEP ANGLE
・Wrong setting for the step
SELECT switch.
angle.
・ON/OFF status of the C.S
・The C.S signal is input.
signal.
・Driver failure.
・Motor failure.
4. The motor steps out
during acceleration.

・Starting pulse speed.
・Acceleration time.

5. The motor generates
excessive heat.

・Starting pulse signal speed
is too high.
・Acceleration time is too
short.

・Setting of the MOTOR SELECT ・Wrong setting for the MOTOR
switch.
selection.
・Setting of the DRIVE CURRENT ・DRIVE CURRENT is higher than
SELECT switch.
the setting for theapplicable motor.
・Value of the HOLD CURRENT
・The setting for HOLD CURRENT
SELECT switch.
is too high.

Short-circuiting of the motor output connector may cause the driver to fail.
●The motor output connector and the power line.
●The motor output connector and the motor output connector.
When the failure phenomenon cannot be remedied, contact our office.
-28-

Instructions Manual

９．Storing and Disposal
９－１．Storing(1) Keep the product in the following environment:●Indoors (where it is not exposed to direct sun).
●Where ambient temperature and humidity are controlled within the range set
out in the specifications.
●Where there is no explosive, corrosive or inflammable gas.
●Where it can be protected from dust, salt or iron powder.
●Where the product main frame is not exposed to direct vibration or shock.
●Where it is not exposed to splashes of water, oil or chemicals.
(2) Do not allow standing or placing anything heavy on the product.

９－２．Disposal(1) Dispose of the product as industrial waste.

-29-

Instructions Manual

１０．Specifications
１０－１．General Specifications

Supply Power

Motor output
current

DC+24V *1 (Ripple voltage P-P 2.0V or less)● Rated input current :〔DRIVE I.SEL ⇒ No.F set up〕
at DRIVE
DC+24V: 2.0A *2● Rated input current :〔HOLD I.SEL ⇒ Approx. 40％ set up〕
at HOLD
DC+24V: 0.4A
●DRIVE CURRENT●HOLD CURRENT

0.30A/phase～1.35A/phase
Approx. 40% of DRIVE CURRENT(factory-set)

Input Signal●Drive pulse input●Motor excitation stop input●Step angle switch input(CW, CCW)
(M.F)
(C.S)

Photo-coupler input
Photo-coupler input
Photo-coupler input

Output Signal●Phase signal output●Overheat alarm output(P.O)(O.H.A)O/C output
O/C output

Functions ofOperating Sections

Operating Ambient
Temperature
Operating Ambient
Humidity●MOTOR selection●STEP TABLE selection●Step angle selection●HOLD CURRENT selection●DRIVE CURRENT selection●PULSE INPUT TYPE selection●HOLD switching time selection(MOTOR SEL)
(S.T SEL)(STEP SEL)(HOLD I.SEL)(DRIVE I.SEL)(SPI SEL)(DHT SEL)

0℃ ～ +40℃(No freezing allowed.)

80％RH or less

(No condensation allowed.)

Storing Temperature-10℃ ～ +55℃

(No freezing allowed.)

Storing Humidity

80％RH or less

(No condensation allowed.)

Atmosphere

Indoor (Exposure to direct sun is not allowed.)
Without any explosive, corrosive or inflammable gas, oil mist,
or dust.

Withstanding
Vibration

No abnormality should be found after a vibration testat 10～55Hz, 0.15mm P-P

Insulation resistance
Exterior Dimensions
Weight*1*2

DC connector - signal connector - Frame(Each other)
Ｈ

DC500V 100MΩ or more

70 × Ｗ75 × Ｄ29 (mm)0.17 kg

Input voltage range is DC+24V±10%.
Use a power supply that provides sufficient input current.

-30-Instructions Manual

１０－２．I/O Signal(1) Example Circuit Connection-31-

Instructions Manual(2) Drive pulse input（CW, CCW）
① Operating current range : 9mA～27mA
The photo-coupler turns on withinter-terminal voltage of 3.1 V～5.5 V.
(Photo-coupler diode V F≒ 1.6 V)② Timing chart
90%

CWP

10%

CCWP

t1

t2
tf

tr

t3

t4

[To the line driver 26LS31］Y
26LS31t1≧0.5μs， t2≧0.5μs， tf,tr≦1μs
t3＞1μs，t4＞1μsZ

CW +(CCW +)CW -(CCW -)

Maximum response frequency : 1MHz
● The shaded area () indicates light emission from the photo-coupler,
and the motor is driven at the rising edge ().
"t4" greatly varies according to the inertial moment including that of the motor.

③ Automatic switching for DRIVE/HOLD
CWP
CCWP
Motor
current

DRIVE
HOLD

HOLD
t1

t1≒ 16ms (HOLD SWITCHING TIME SELECT switch : ON ・DH2)
t1≒150ms (HOLD SWITCHING TIME SELECT switch : OFF・DH1)● Inputting drive pulse causes the current output to the motor to change fromHOLD CURRENT to DRIVE CURRENT, which returns to HOLD CURRENT in about "t1".
DRIVE CURRENT continues if pulse is input on driving-state.
④ Direction of rotation

CCW
CW(Clockwise)-32-

Instructions Manual(3) Motor excitation stop input（M.F）

 A

I N

Deterioration of the holding power withthe motor may cause breakage of the machineor injury.
Check safety before inputting.

① Operating current range : 2.6mA～19.5mA
The photo-coupler turns on withinter-terminal voltage of 4.5 V～26.4 V.
(Photo-coupler diode V F≒ 1.1 V)● Motor output current is shut off with the photo-coupler ON.
At this time, motor torque changes to detent torque.
● When this signal is input, motor torque may be lost, resulting in failure toretain the load transported.
In particular, this risk is high with the vertical drive (such as the Z-axis).
② Timing chart

ON
Supply
power
OFF

ON
M.F

t1

t1≦300ms
t2≦5mst3≦100ms

OFF

ON

Motor
excitation

ON

t2

t3

(t1：Time required for the motor to be enabled.)(t2：Time required for the motor output current to be shut off.)(t3：Time required for the motor to be enabled.)-33-

Instructions Manual(4) Phase signal output（P.O）① Output current

a. IC≦6mA, V CE(sat) ＜5V
b. IC≦2mA, V CE(sat) ≦0.6V
VCEO≦30V● In case of the excitation home position, the signal is output.
(photo-coupler ON)● In case of simultaneously using P.O signal and C.S signal,
input C.S signal while P.O signal is being output to switch the step angle.
Otherwise, P.O signal may not be output.

② Timing chart● P.O output timing (for 1/1 STEP)
1

2

3

4

5

6

7

8

9

0

1

2

CWP
1

0

CCWP
P.O
7.2°
(For a motor with the basic angle of 0.72°)● P.O output time
1/1 STEP: once in
10 pulses
1/2 STEP: once in
20 pulses
1/4 STEP: once in
40 pulses
1/10 STEP: once in 100 pulses
1/20 STEP: once in 200 pulses
1/40 STEP: once in 400 pulses
1/100 STEP: once in 1000 pulses
1/200 STEP: once in 2000 pulses
1/400 STEP: once in 4000 pulses
1/800 STEP: once in 8000 pulses
1/1000 STEP: once in 10000 pulses
1/2000 STEP: once in 20000 pulses
1/4000 STEP: once in 40000 pulses

1/8 STEP: once in
80 pulses
1/16 STEP: once in 160 pulses
1/80 STEP: once in 800 pulses
1/160 STEP: once in 1600 pulses-34-

Instructions Manual(5) Overheat alarm signal output and overheat alarm LED（O.H.A）

WARNING
Overheating may cause fire.
Stop operation upon output of this signal.

① Output current

a. IC≦6mA, V CE(sat) ＜5V
b. IC≦2mA, V CE(sat) ≦0.6V
VCEO≦30V● Use overheat alarm signal output（O.H.A）without fail.
● In case of internal temperature of the driver reaches approx. 70℃ or more,
the signal is output(photo-coupler ON) and O.H.A LED comes on.
At this time the motor output current is not blocked.
● When this signal is output, stop operation and check if there is any
abnormality occurring with the motor and the driver.
● Provide mechanical cooling, for example, if this signal is output while
no abnormality is detected.
● Continuous operation is possible unless this signal is output.

-35-

Instructions Manual(6) Step angle switch input（C.S）① Operating current range : 2.6mA～19.5mA
The photo-coupler turns on withinter-terminal voltage of 4.5 V～26.4 V.
(Photo-coupler diode V F≒ 1.1 V)● Step angle division is switched to 20 divisions of the basic angle withthe photo-coupler ON.
The setting for the STEP ANGLE SELECT switch is ignored.
●When the step angle is set 1000,2000 or 4000 divisions of the basic angle,change of the excitation position may be caused by inputting C.S signal.
② Timing chart
Divisions of
STEP SEL No.

1/20(0.036ﾟ）Divisions of
STEP SEL No.

CWP
CCWP
ON

OFF

C.S
t1

t2

t1

t2

t1≧30mst2≧ 1ms● Switching the step angle by the C.S signal requires time "t1" and "t2" before
and after inputting drive pulse.
③ STEP ANGLE SELECT switch and C.S signal〔STEP ANGLE SELECT switch〕
S.T SEL switch〔OFF：S.T1〕

S.T SEL switch〔OFF：S.T2〕

step angle(°)
STEP SEL
1/
Divisions 0.72°motor
No.
０
1/1
0.72
１
1/2
0.36
２
0.18
1/4
３
0.072
1/10
0.036
４
1/20
５
1/40
0.018
６
1/100
0.0072７
1/200
0.0036８
1/400
0.0018９1/800
0.0009Ａ
1/10000.00072
1/2000Ｂ
0.00036Ｃ
1/40000.00018
Ｄ
－
－
Ｅ
－
－
Ｆ
－
－

step angle(°)
STEP SEL
1/
Divisions 0.72°motor
No.
－
０
－
－
１
－
－
２
－
３
－
－
－
４
－
５
－
－
６
－
－
７
－
－
８
－
－
９
－
－
Ａ
－
－
Ｂ
－
－
Ｃ
0.09
1/8
Ｄ
0.045
1/16
Ｅ
0.009
1/80
Ｆ
0.00451/160-36-〔When the C.S

signal is input〕
1/20(0.036°)

Instructions Manual

１０－３．Dimensions（Unit：ｍｍ）-37-

Instructions Manual

１０－４．Applicable Motors●GDB-5F40 can drive a 5-phase stepping motor with 0.75A/phase and 1.4A/phase.
ORIENTAL MOTOR Co., Ltd.

Basic
Angle
(°)

Settingswitch No.

Setting
MOTOR SEL
switch No.

Torque Data
Fig. No.

Current
DRIVE I.SEL(A/phase)□42mm PK543-A(B)PK544-A(B)PK545-A(B)

0.72
0.72
0.72

0.75
0.75
0.75

7
7
7

OFF
OFF
OFF

Fig.1
Fig.2
Fig.3

□60mm PK564-A(B)PK564H-A(B)PK566-A(B)PK566H-A(B)PK569-A(B)

0.72
0.72
0.72
0.72
0.72

0.75
1.4
0.75
1.4
1.4

7
F
7
F
F

OFF
OFF
OFF
OFF
OFF

Fig.4
Fig.5
Fig.6
Fig.7
Fig.8

Settingswitch No.

Setting
MOTOR SEL
switch No.

Torque Data
Fig. No.

SANYO DENKI Co., LTD.

Basic
Angle
(°)

Current
DRIVE I.SEL(A/phase)□28mm 103F3505-7441(7411)
103F3515-7441(7411)

0.72
0.72

0.75
0.75

7
7

OFF
OFF

Fig.9
Fig.10□42mm 103F5505-7241(7211)
103F5505-8241(8211)
103F5508-7241(7211)
103F5508-8241(8211)
103F5510-7241(7211)
103F5510-8241(8211)

0.72
0.72
0.72
0.72
0.72
0.72

0.75
1.4
0.75
1.4
0.75
1.4

7
F
7
F
7
F

OFF
OFF
OFF
OFF
OFF
OFF

Fig.11
Fig.12
Fig.13
Fig.14
Fig.15
Fig.16□60mm 103F7851-8241(8211)
103F7852-8241(8211)
103F7853-8241(8211)

0.72
0.72
0.72

1.4
1.4
1.4

F
F
F

OFF
OFF
OFF

Fig.17
Fig.18
Fig.19F

OFF－

Factory Setting( ) : Both axes

-38-Instructions Manual

１０－５．Torque Characteristics(1) Representations in the torque characteristics table are made in terms of the
motor rotation (s -１) vs. torque (N・m).
Motor rotation (s -１) and drive pulse frequency (Hz) are converted as follows:

Motor rotation(s -１) ×360°＝ Drive pulse input frequency(Hz)Step angle● Maximum value of the rotate speed is 100s -1 at 0.72゜ motor.
(2) The Maximum Starting Pulse Rate is represented as "fs" by the value at zeroinertial load.
(3) Upon operation, provide adequate allowance for torque.
(4) The stepping motor may attain high temperature, depending on the operational
conditions.
Use the stepping motor according to the Instructions Manual produced by
motormakers.

-39-

Instructions Manual-40-Instructions Manual-41-

Instructions Manual-42-Instructions Manual-43-Instructions Manual-44-Instructions Manual

１０－６．Conforming to Europe standards

R1(1) Low voltage directive
This product is not subject to the EC’s Low Voltage Directive by the following.
・ This product should be installed within an enclosure.
・ For the driver’s power supply, use a DC power supply with reinforced insulation
on its primary and secondary sides.
(2) EMC directive
This product declares the CE marking based on the EMC Directive by oneself.
● Applicable Standards
EN61000-6-4
EN61000-6-2● This product conducted EMC measurement with the system configuration for EMC.
・ EMC characteristic may vary depending on the configuration of the equipment that
contains the driver or stepping motor. Be sure to conduct EMC measurement withthe product assembled in your equipment.

Configuration
The metallic enclosure and shielded wires and ferrite core work to shield noise.

-45-

Instructions Manual

The main parts which revised by this manual
Parts
P45

Content【R1】
Deletion of the directive number.

-46-

Technical Service
TEL.(042)664-5382 FAX.(042)666-5664
E-mail s-support@melec-inc.com

Sales and Service
TEL.(042)664-5384 FAX.(042)666-2031
URL:http://www.melec-inc.com
Melec Inc. Control equipment marketing department
516-10,Higashiasakawa-cho,Hachioji-shi,Tokyo 193-0834,Japan
This Operating Manual is subject to change without prior noticefor the purpose of product improvement.

C1610