2-phase Stepping Motor DriverD-2620v1
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.

MN0339-1

D-2620v1

Instructions Manual
Introduction
This Instructions Manual describes the safe and proper method of handling"2-phase Stepping Motor Driver D-2620v1" 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-

D-2620v1

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:

WARNINGCAUTION

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

-3-D-2620v1

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

11
11
11

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

12
13
13
13
14

４． Setting
4-1. Setting STEP ANGLE SELECT switch
4-2. Setting HOLD CURRENT SELECT switch
4-3. Setting DRIVE CURRENT SELECT switch
4-4. Setting PULSE INPUT TYPE SELECT switch
4-5. Setting MOTOR SELECT switch
4-6. Setting ROTATE CHARACTERISTIC SELECT 1 switch
4-7. Setting ROTATE CHARACTERISTIC SELECT 2 switch

15
16
17
18
18
19
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,J2）
6-3. Connecting AC Input/Motor Output Terminal Block（J3）6-4. Inputting Power

22
23
24
26

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

27

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D-2620v1

Instructions Manual
PAGE

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

28
29

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

30
30

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) Overheat alarm signal output and overheat alarm LED
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-

31

(O.H.A)

32
33
34
35
36
37
38
41A

D-2620v1

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 electric shock, injury or fire.
(3) This product is designed for use within machinery, so it should be installed
within an enclosure.
Be sure to ground the protective earth terminal of the driver.
(4) 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.
(5) Only qualified personnel are allowed to transport, move, install the product,
perform connections or inspections.
Failure to do so may cause electric shock, injury or fire.

CAUTION(6) 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.
(7) Ensure to use this product according to the method specified
in the Instructions Manual and within the specifications.
(8) 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.
(9) 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.

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D-2620v1

Instructions Manual
１－２．Safety Information for Handling●Overall:WARNING
Do not touch the driver during operation.
Failure to do so may cause electric shock.

WARNING
indicate terminals on which power voltage
is applied.
Do not touch such terminals while
inputting power and while POWER LED is on.
Doing so may cause electric shock.

WARNINGUse only an insulated screwdriver toadjust or set internal switches.
Failure to do so may cause electric shock.

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

●When connecting the AC Input/Motor Output Terminal Block (J3):WARNING
Turn the main power OFF.
Failure to do so may cause electric shock.

WARNING
Securely ground the protective earth
Failure to do so may cause electric shock.

WARNING
Do not force the power line or the motor
line to be bent or pulled or pinched.
Doing so may cause electric shock or fire.

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D-2620v1

Instructions Manual
CAUTION
Erroneous connection may resultin breakage of the motor or the driver.
Correctly connect the motor wiring.

●When setting up the STEP ANGLE SELECT switch:
CAUTION
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:
CAUTION
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 DRIVE CURRENT SELECT switch:

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

●When setting up the PULSE INPUT TYPE SELECT switch:
CAUTION
Erroneous setting may cause breakage ofthe machine or injury due to unexpectedrotation of the moter.
Ensure correct setting.

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D-2620v1

Instructions Manual●When inputting the motor excitation stop (M.F) signal:
CAUTION
Deterioration of the holding power withthe motor may cause breakage of machineor injury.
Check safety before inputting.

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

●When inputting power:
WARNING
Do not contact with a wet hand.
Doing so may cause electric shock.

WARNING
indicate terminals on which power voltage
is applied.
Do not touch such terminals while
inputting power and while POWER LED is on.
Doing so may cause electric shock.

CAUTION
Unexpected behavior of the motor may cause
breakage of the machine or injury.
Maintain the state where emergency stop is
enabled at any time.

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

-9-D-2620v1

Instructions Manual●When the overheat alarm (O.H.A) LED comes on
WARNING
Overheating may cause fire.
Stop operation when this LED comes on.

●When performing maintenance and checking:WARNING
Only qualified personnel are allowed toperform maintenance and checking.
Failure to do so may cause electric shock.

WARNING
Do not contact with a wet hand.
Doing so may cause electric shock.

WARNING
indicate terminals on which power voltage
is applied.
Do not touch such terminals while
inputting power and while POWER LED is on.
Doing so may cause electric shock.

WARNING
Do not replace fuse.
Do not disassemble, repair or modify.
Doing so may cause electric shock, injury
or fire.

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D-2620v1

Instructions Manual

２．Overview
２－１．Characteristics
D-2620v1 is a driver for a 2-phase stepping motor with single-phase 100V input.
Driving method is unipolar constant current type.
Step angles can be selected from six angles ranging from 1/1 division to
1/32 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.
● D-2620v1(Complete with terminal block covers)● Housing for J1 (171822-6:TE Connectivity)● Housing for J2 (171822-2:TE Connectivity)● Contact (170204-4:TE Connectivity)

One unit
One unit(accessory)
One unit(accessory)
10 contacts (accessories,2 for spares)

２－３．Appearance

Model Name
Mounting Section
D-2620V1

8

０

4

C

OHA

O.H.A LED(RED)Operating Section

MOTOR

POWER LED(GREEN)

Terminal Block(J3)・Protective earth Terminal
・AC Input Terminal
・Motor Output Terminal

Mounting Section

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C

O.H.A +
O.H.A -

8０

4Signal I/O Connector(J1,J2)

D-2620v1

Instructions Manual

３．Name and Function of Each Section
３－１．Signal I/O Connector（Ｊ１，Ｊ２）
D-2620v1

CW drive pulse signal input terminal

CW+

1

CW-

2

CCW+

3

CCW-

4

M.F+

5

M.F-

6

O.H.A+

1

Overheat alarm signal output terminal

O.H.A-

2●Outputs the signal when internal temperatureof the driver has reached approx. 70℃ or more.

J1

J2●Directs the motor to operate CW.

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

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

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Instructions Manual
３－２．AC Input/Motor Output Terminal Block（Ｊ３）WARNING
Do not touch the driver during operation.
Failure to do so may cause electric shock.

D-2620v1

J3

Protective earth terminal
1
L

2

N

3

M.COM

4

A

5

A

6

B

7

B

8

AC input terminal

100V～

MOTOR

●Protects against electric shock as connectedto the protective earth terminal of the equipment.

●Power input terminal.
The power supply is connected.

Motor output terminal●Outputs current to drive the motor.

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.

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D-2620v1

Instructions Manual
３－５．Operation Section
WARNING
Do not touch the driver during operation.
Failure to do so may cause electric shock.

D-2620v1

8DRIVE CURRENT SELECT switch (DRIVE)

8

0

4

DRIVE

HOLD CURRENT SELECT switch (HOLD)

C

0

4

HOLD

C

ON
SPI
SC
SB
SA

ON
OP1
RC2
RC1
MSEL

[2P - 1P]
[OFF - ON][OFF - ON][OFF - ON]

PULSE INPUT TYPE SELECT switch (SPI)
STEP ANGLE SELECT switch (SC,SB,SA)

Extend functions switch
ROTATE CHARACTERISTIC SELECT 2 switch (RC2)[OFF - ON][OFF - ON][OFF - ON]

ROTATE CHARACTERISTIC SELECT 1 switch (RC1)

MOTOR SELECT switch (MSEL)

Name of Operation Section

Function

Factory Setting

DRIVE CURRENT SELECT switch
HOLD CURRENT SELECT switch

Selects DRIVE CURRENT.
Selects HOLD CURRENT.

No.6
No.4

PULSE INPUT TYPE CELECT
switchSelects a pulse input type.

OFF

SC
SB
SA

Extend functions switch

Please use it with OFF.

OFF
ON
ON
OFF

ROTATE CHARACTERISTIC
SELECT 2 switch

Selects a high-speed torqueOFF

ROTATE CHARACTERISTIC
SELECT 1 switch

Selects a characteristic of motor rotation.

ON

MOTOR SELECT

Selects the applicable motor.

OFF

STEP ANGLESELECT switch

switchSelects a step angle.

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Instructions Manual

４．Setting
４－１．Setting STEP ANGLE SELECT switch
CAUTION
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 〔SC,SB,SA〕 switch.

(1) Set the 〔SC,SB,SA〕switch to the step angle required.
● Relationship between the 〔SC,SB,SA〕switch and the step angle.
SC

SB

SA

1/
Divisions

ON
ON
ON
ON
OFF
OFF
OFF
OFF

ON
ON
OFF
OFF
ON
ON
OFF
OFF

ON
OFF
ON
OFF
ON
OFF
ON
OFF

1/1
1/2
1/4
1/8
1/16
1/32
-

Step angle(°)
1.8°motor
1.8
0.9
0.45
0.225
0.11250.05625--15-(Factory Setting)D-2620v1

Instructions Manual
４－２．Setting HOLD CURRENT SELECT switch
CAUTION
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〕switch.

(1) Set the 〔HOLD〕switch No. to the ratio of HOLD CURRENT to
DRIVE CURRENT required.
● Ratio of HOLD CURRENT
Ratio of HOLD CURRENT（％）＝

HOLD CURRENT
DRIVE CURRENT

Switch No.

Ratio of HOLD CURRENT (％)

0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
Ｆ

Less than 5
10
20
30
40
50
60
70
80
90
100
-

×100

(Factory Setting)● HOLD CURRENT changes relative to DRIVE CURRENT setting.
The ratio of HOLD CURRENT set the switch No. to [No.A]:100% represents
the same as the setting for DRIVE CURRENT.
● The greater the ratio of HOLD CURRENT grows, the more heat the motor
generates when is on holding-state.

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D-2620v1

Instructions Manual
４－３．Setting DRIVE CURRENT SELECT switch
CAUTION
Erroneous setting may cause burn on theskin due to overheating of the motor.
Ensure correct setting.

DRIVE CURRENT is set up with the 〔DRIVE〕switch.

(1) Set the 〔DRIVE〕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.

A/phase

0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F

0.30
0.41
0.53
0.64
0.75
0.87
0.98
1.09
1.21
1.32
1.43
1.55
1.66
1.77
1.89
2.00

(Factory Setting)-17-

D-2620v1

Instructions Manual
４－４．Setting PULSE INPUT TYPE SELECT switch
CAUTION
Erroneous setting may cause breakage ofthe machine or injury due to unexpectedrotation of motor.
Ensure correct setting.

2-pulse input method / 1-pulse input method are
set up by the 〔SPI〕switch.
The new setting of the function setting switch
will become effective after the power is cycled.

(1) Set the 〔SPI〕
SPI

Input typeON

1PULSE (1P)OFF

2PULSE (2P)

(Factory Setting)● When the motor is operated with two pulse signal inputs of CW and CCW,
set the SPI switch to [OFF].
● When the motor is operated with the pulse signal and direction signal
input, set the SPI switch to [ON].
● 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)"

４－５．Setting MOTOR SELECT switch
The 〔MSEL〕switche is turned to the setting
corresponding to the motor in use.
(1) Set the 〔MSEL〕switche to the specified in the talbe"10-4. Applicable Motors."-18-

D-2620v1

Instructions Manual
４－６．Setting ROTATE CHARACTERISTIC SELECT 1 switch
ROTATE CHARACTERISTIC is set up with the 〔RC1〕switch.
The new setting of the function setting switch
will become effective after the power is cycled.
● When the division of the STEP switch is 1/1 or 1/2,
by setting the 〔RC1〕switch to 〔OFF〕the vibration of the motorin a acceleration/deceleration drive may reduce.

４－７．Setting ROTATE CHARACTERISTIC SELECT 2 switch
High-speed torque is set up with the 〔RC2〕switch.
(1) Set the〔RC2〕switch to the high-speed torque required.
● Relationship between the〔RC2〕switch and the high-speed torque.
TorqueRC2：ON

RC2：OFF
Motor rotation
speed

Torque Model● Select the〔RC2〕switch〔ON〕if high-speed torque is required.
In case of the switch 〔ON〕, the temperature of the motor rises.

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D-2620v1

Instructions Manual

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

(1) Designed for incorporating into equipment used indoors, this product requires
to be installed in the following environment:● Area that is free of explosive, corrosive or inflammable gas● Indoors (Area not exposed to direct sunshine)● Area that ambient temperature and humidity are controlled within the range
set out in the specifications● Area protected from dust, salt or iron particles● Area not subject to direct vibration or shock● Area not subject to splashing water, oil or chemicals(2) Install the driver at least 10mm away from other equipment.
However, please be installed to a distance of at least 15mm from theheating element.

15mm or more

Heating
element
Driver10mm or more

Driver10mm or more

10mm or more

10mm or more

● Please contact us if you are not installed to a distance of at least 15mm
from the heating element.
(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 space
ようにする。
around 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 an overheat alarm signal is output, perform the cooling measure of
the mounting plate is enlarged or compulsion air cooling etc.
Use the driver on the condition that an overheat alarm signal is not output.
(5) Do not allow standing or placing anything heavy on the product.
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D-2620v1

Instructions Manual
５－２．Mounting Method
The following items are required:● M-3 screw (8mm or more in length):● M-3 spring washer:● M-3 flat washer:333(1) Fix the product at the three cutouts.
● Mounting example

Fixing with a screw

Fixing with a screw
M-3 screw
M-3 spring washer

8

０

4

DRIVE

C

M-3 flat washer

8

０

4

HOLD

C

ON
SPI
SC
SB
SA

ON
OP1
RC2
RC1
MSEL

MADE IN JAPANFixing with a screw-21-

D-2620v1

Instructions Manual

６．Connection
６－１．Overview of Connection Configuration
D-2620v1

User
controller
CWP
CWP
CCWP
CCWP
+COM
M.F

Twistedpair wire

J1
1
2
3

4
5
6

CW+
CWCCW+
CCWM.F+
M.F-

J2
O.H.A
R.GND

1
2

O.H.A+
O.H.A-

J3
1

L
N
M.COM
A
A
B
B

Protective earthterminal for the(O.75mm2 or more) equipment (PE)Single-phase 100V
Single-phase 100V

2
3

4
5

Motor

6
7
8

● Connect only one motor to one driver.
● 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 ferrite core for the motor line if it generates significant noise.
● Provide ferrite core for power line if it generates significant noise.
〔Example configuration〕
The metallic enclosure and shielded wires and ferrite core work to shield noise.
Metal Enclosure

ShieldUser
controller(ProtectiveclassⅡ)

Metal Enclosure
Ferrite core
Metal Enclosure

D-2620v1
Motor

Transformer withreinforced insulation

GroundingGrounding

AC input-22-

GroundingD-2620v1

Instructions Manual
６－２．Connecting Signal I/O Connector（Ｊ１，Ｊ２）
The following items are required:● Housing for J1 (171822-6:TE Connectivity):● Housing for J2 (171822-2:TE Connectivity):● Contact (170204-4:TE Connectivity):● Manually operated crimping tool
for AWG26-20(91556-1:TE Connectivity):

One unit
One unit
8 contacts(accessory)(accessory)(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 housing to the connector on the main frame.
● The contacts for J1 are 6 pieces. The contacts for J2 are 2 pieces.
● When inserting, keep pushing J1 and J2 housing into the connector until it islocked. Also, check if the contacts are not displaced from the housing.
● In wiring, isolate the J1 and J2 signal lines from equipment that may be
さい。
a source of noise, the power line and the motor line.
(Surface on which the contacts are inserted)
6

5

4

3

2

1

2

Housing for J1〈Wiring〉

User
controller

1

Housing for J2〈Crimping〉〈Insertion〉 〈Connection〉

D-2620v1

Housing

J1

CWP

1

1

CW+

CWP

2

2

CW-

CCWP

3

3

CCW+

CCWP

4

4

CCW-

+COM

5

5

M.F+

M.F

6

6

M.F-

Contact

Housing

J2

O.H.A

1

1

O.H.A+

R.GND

2

2

O.H.A-

Contact● Use a signal cable of AWG26(0.15mm2) or more in diameter.

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Drive pulse input
Drive pulse input
Motor excitation
stop input

Overheat alarmD-2620v1

Instructions Manual
６－３．Connecting AC Input/Motor Output Terminal Block（Ｊ３）WARNING
Turn the main power OFF.
Failure to do so may cause electric shock.

WARNING
Securely ground the protective earth
Failure to do so may cause electric shock.

WARNING
Do not force the power line or the motor
line to be bent or pulled or pinched.
Doing so may cause electric shock or fire.

CAUTION
Erroneous connection may resultin breakage of the motor or the driver.
Correctly connect the motor wiring.

The following items are required:● Crimping terminal(TMEV1.25-3: Nichifu or the equivalent)● Manually operated crimping tool for AWG22-16(NH-11: Nichifu or the equivalent)8
One unit(1) Turn power of the equipment [OFF].
(2) Crimp the crimping terminals to the cable used for wiring.
(3) Remove the covers of terminal block, then connect.
(4) Fix the terminal block covers after completing connection.

〔Protective earth terminal ・ AC input terminal〕〈Crimping〉〈Connection〉〈Wiring〉

D-2620v1
J3

100V～

Protective earth terminal
for the equipment (PE)

Crimping terminal

Protective earthterminal

1

L

2

LIVE

N

3

NEUTRAL

Single-phase 100V-24-

D-2620v1

Instructions Manual●the protective earth terminal of the equipment (PE).
● Use a protective earth cable and power cable of AWG18(0.75mm2) or morein diameter.

〔Motor output terminal〕〈Crimping〉〈Connection〉〈Wiring〉

D-2620v1

Crimping terminal

MOTOR

J3

Unipolar winding

M.COM

4

A

5

Leads of the motor
Yellow (White)
White (Black)
Black (Orange)

A

6

Green (Blue)

B

7

Red

(Red)

B

8

Blue

(Yellow)

Motor● Color indications for leads of the motor indicate motor of the ORIENTAL MOTOR CO., Ltd..
Color indications for leads of the motor in parentheses ( ) indicate motor of
the SANYO DENKI CO., Ltd..
● Use a motor cable of AWG20(0.5mm2) or more diameter.
● When use a motor cable more than 5m, contact our office.

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D-2620v1

Instructions Manual
６－４．Inputting PowerWARNING
Do not contact with a wet hand.
Doing so may cause electric shock.

WARNING
indicate terminals on which power voltage
is applied.
Do not touch such terminals while
inputting power and while POWER LED is on.
Doing so may cause electric shock.

CAUTION
Unexpected behavior of the motor may cause
breakage of the machine or injury.
Maintain the state where emergency stop is
enabled at any time.

(1) Input power (single-phase 100V) into the cable connected to No.2
and No.3 terminals of J3.

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D-2620v1

Instructions Manual

７．Confirmation of Setting and Connection
７－１．Check Points(1) 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.
(2)(3) Check if the terminal block covers are fixed on J3.

Check Points

Check

Setting of DRIVE CURRENT
SELECT switch

Switch No.

Setting of HOLD CURRENT
SELECT switch

Switch No.

Setting of PULSE INPUT TYPE
SELECT switch
SC
SB
SA

Setting of STEP ANGLESELECT switch
SettingswitchOFF/ONof Extend functions

OFF/ON
OFF/ON
OFF/ON
OFF/ON

Setting of ROTATECHARACTERISTIC SELECT 2 switch

OFF/ON

Setting of ROTATECHARACTERISTIC SELECT 1 switch

OFF/ON

Setting

OFF/ONof MOTOR SELECT switch

Connection of J1
Connection of J2

Connection of J3

AC input terminal (L,N)
Motor output terminal
Terminal block cover-27-

Remarks

D-2620v1

Instructions Manual

８．Maintenance and Check-up
８－１．Maintenance and Check-up
WARNING
Only qualified personnel are allowed toperform maintenance and checking.
Failure to do so may cause electric shock.

WARNING
Do not contact with a wet hand.
Doing so may cause electric shock.

WARNING
indicate terminals on which power voltage
is applied.
Do not touch such terminals while
inputting power and while POWER LED is on.
Doing so may cause electric shock.

WARNING
Do not replace fuse.
Do not disassemble, repair or modify.
Doing so may cause electric shock, injury
or fire.

(1) As for a maintenance inspection the engineer of the specialty shall do it.
(2) We recommend that the following check-ups should be performed periodically:● Checking for any loosened screws on the terminal block andcontacts 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.

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D-2620v1

Instructions Manual
８－２．Troubleshooting
Trouble1. POWER LED does notcome on.

Check Item
・Connection of power supply.
・Value of power voltage.

Assumed Cause・Wiring error with power supply.
・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・Wiring error with the motor
and the driver.
・The M.F signal is input.

signal.
・Setting of the HOLD CURRENT
SELECT switch.

・Hold current is set to zero.
・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 PULSE INPUT
The motor steps out.
TYPE SELECT switch.

・Wrong setting for the pulse
input type.
・Connection of the pulse signal. ・Wiring error with the pulse
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.
・Driver failure.
・Motor failure.

4. The motor steps out
during acceleration.

・Starting pulse speed.
・Acceleration time.

5. The motor generates
excessive heat.

6. Overheat alarm signal
is output.
(1)・Setting of the DRIVE CURRENT
SELECT switch.

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

・Setting of the HOLD CURRENT
SELECT switch.

・DRIVE CURRENT is higher than
the setting for the applicablemotor.
・The setting for HOLD CURRENT
is too high.

・Ambient temperature aroundthe driver.

・Ambient temperature is too high
(50℃ or more).

Short-circuiting of the motor output terminal may cause the driver to fail.
● Short-circuiting between the motor output terminal and the earth terminal (PE)● Short-circuiting between the motor output terminal and the power line
● Short-circuiting between the motor output terminal and the motor output terminal● Wiring error or snapping of the motor output lines(2)

When a large inertial load (motor rotor inertia x 5 or more)is operated athigh speed(rotational speed 20s-1 or more),regenerative energy will
generate and increase the power supply voltage,which can damage the driver.
Review the operating condition and make sure regenerative voltage will notgenerate.
When the failure phenomenon cannot be remedied, contact our office.

-29-

D-2620v1

Instructions Manual

９．Storing and Disposal
９－１．Storing(1) Keep the product in the following environment:● Area that is free of explosive, corrosive or inflammable gas● Indoors (Area not exposed to direct sunshine)● Area that ambient temperature and humidity are controlled within the range
set out in the specifications● Area protected from dust, salt or iron particles● Area not subject to direct vibration or shock● Area not subject to splashing 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.

-30-

D-2620v1

Instructions Manual

１０．Specifications
１０－１．General Specifications
Single-phase 100V(50/60Hz) *1●Rated power at DRIVE:〔DRIVE ⇒ No.F set up〕*2
AC100V : 2.1A

●Rated power at HOLD:〔DRIVE ⇒ No.F, HOLD ⇒ 40% set up〕
AC100V : 0.5A or less

●DRIVE CURRENT●HOLD CURRENT

0.3A/phase～2.0A/phase (16 levels)
5%～100% of DRIVE CURRENT (11 levels)

Supply Power

Motor output current

Input Signal●Drive pulse input●Motor excitation stop input(CW, CCW)(M.F)

Photo-coupler input
Photo-coupler input

Output Signal●Overheat alarm signal output(O.H.A)O/C output●DRIVE CURRENT selection●HOLD CURRENT selection
Function of Operating ●STEP ANGLE selection
Sections●MOTOR selection●PULSE INPUT TYPE selection●ROTATE CHARACTERISTIC selection(DRIVE)(HOLD)(SA,SB,SC)(MSEL)(SPI)(RC1,RC2)

Operating Ambient
Temperature

0℃ ～ +50℃(No freezing allowed)

Operating Ambient
Humidity

80％RH or less

(No condensation allowed)

Storing Temperature-10℃ ～ +55℃

(No freezing allowed)

Storing Humidity

80％RH or less

(No condensation allowed)

AltitudeAtmosphereWithstanding
Vibration
Insulated
Withstanding Voltage

Up to 1000m above sea level
Indoor (Exposure to direct sunshine is not allowed.)
Without any explosive, corrosive or inflammable gas, oil mist, or dust
No abnormality should be found after a vibration testat 10～55Hz, 0.15mm P-P.
(At ordinary temperature and humidity)
AC terminal － signal terminal

Insulation Resistance
Exterior Dimensions
Weight*1*2*3

1500VAC: for one minute
500VDC: 100MΩ or more
1500VAC: for one minute
500VDC: 100MΩ or moreＨ

110 × Ｗ132 × Ｄ45.4 (mm) *3

0.35 kg

Input voltage range is single-phase 100V±10%.
Power demand varies with rotation speed, a load, etc.
Including screws and terminal blocks.

-31-D-2620v1

Instructions Manual
１０－２．I/O Signal(1) Example Circuit Connection
Example connectionof the user controller(J1)

Y
26LS31

CWP

CW+

CWP

CW-

D-2620v1
1

300Ω

2

Z

Photo-coupler

Y
26LS31

CCWP

CCW+

CCWP

CCW-

3

300Ω

4

Z

Photo-coupler

+24V
+COM

M.F+

M.F

M.F-

5

1.3kΩ

6
Photo-coupler

GND
+Vo

(J2)
R
Photo-coupler

O.H.A

O.H.A+R.GND

O.H.A-

1

2
Photo-coupler-Vo● Power supply for I/O circuit shall be reinforced or double insulation
against hazardous voltage such as 100Vac mains.
Proving SELV≦60Vdc power supply circuit is necessary.

-32-

D-2620v1

Instructions Manual(2) Drive pulse input（CW, CCW）
① Operating current range : 5mA～14mA
The photo-coupler turns on withinter-terminal voltage of 3.1 V～5.5 V.
(Photo-coupler diode VF≒ 1.5 V)

(J1)

CW+
CW-

② Timing chart

D-2620v1
300Ω

1

2
Photo-coupler

90％

CWP

CCW+

10％

CCW-

3

300Ω

4
Photo-coupler

CCWP
t1

t2
tf
t3

tr

[To the line driver 26LS31］
t4

Y
26LS31t1≧0.78μs，t2≧0.78μs，tf,tr≦1μs
t3≧1.56μs，t4＞1.56μs

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

Maximum response frequency : 640kHz(Duty 50%)
● 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≒150ms● Inputting drive pulse causes the current output to the motor to change fromHOLD CURRENT to DRIVE CURRENT, which returns to HOLD CURRENT in "t1".
DRIVE CURRENT continues if pulse is input on driving-state.
④ Direction of rotation

CCW

CW(Clockwise)-33-

D-2620v1

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

CAUTION
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 4.5V～26.4V.
(Photo-coupler diode VF≒ 1.1 V)

D-2620v1

(J1)
M.F+

5

M.F-

6

1.3kΩ

Photo-coupler● 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
ON

OFF

M.F
ON

Motor
excitation
t1

t1≦1.5s
t2≦5mst3≦100ms

OFF

t2

ON

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.)-34-

D-2620v1

Instructions Manual(4) Overheat alarm signal output（O.H.A）

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

WARNING
Overheating may cause fire.
Stop operation when this LED comes on.

① Output current

a. IC≦6mA, VCE＜2V
b. IC≦2mA, VCE(sat)＜0.6V
VCEO≦30V(J2)

D-2620v1

O.H.A+

1

O.H.A-

2
Photo-coupler● Use overheat alarm signal output（O.H.A）without fail.
● In case of internal temperature of the driver reaches approx. 70℃ or more,this 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.
● Perform the cooling measure of the mounting plate is enlarged orcompulsion air cooling, for example, if this signal is output
while no abnormality is detected.
● Continuous operation is possible unless this signal is output.

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D-2620v1

Instructions Manual
１０－３．Dimensions

31.2

MADE IN JAPAN

ON
OP1
RC2
RC1
MSEL

HOLD

4

DRIVE

37

17

(3)

4

11.2

０

０

42.4

C

C

120

(4)

(3)

(4)

D-2620V1

O.H.A +
O.H.A -

2

MOT OR

107

OHA

(110)

(45.4)

8
4

8

ON
SPI
SC
SB
SA

14.2

3.5

（Unit：ｍｍ）

9

110

9

(132)

(4)

42.4
(45.4)-36-

D-2620v1

Instructions Manual
１０－４．Applicable Motors● D-2620v1 can drive a 2-phase unipolar stepping motor of 0.95 - 2.0 A/phase.
Basic
Angle
(°)

Current(A/phase)

DRIVE
switchMSELswitchTorque Data
Fig. No.

PK243-01A(B)

1.8

0.95

6

OFF

Fig.1

PK264-01A(B)

1.8

1.0

6

OFF

Fig.2

PK266-01A(B)PK268-01A(B)

1.8

1.0

6

ON

Fig.3
Fig.4

□42mm

PK244-01A(B)PK245-01A(B)

1.8

1.2

8

OFF

Fig.5
Fig.6

□56.4mm

PK264-02A(B)PK266-02A(B)PK268-02A(B)

1.8

2.0

F

OFF

Fig.7
Fig.8
Fig.9

□85mm

PK296-01A(B)PK299-01A(B)

1.8

2.0

F

ON

Fig.10
Fig.11ORIENTAL MOTOR CO., LTD.

□42mm

□56.4mm() : Both axes

● When use a non-applicable motor, contact our office.

-37-

D-2620v1

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

Motor rotation speed (s-１)

×

360°＝ Drive pulse input frequency(Hz)Step angle(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 producedby motormakers.

-38-

D-2620v1

Instructions Manual

Fig.1
D-2620v1
PK243-01A(B)
0.95A/PHASEINPUT CURRENT(A)TORQUE(N･m)
0.20

Fig.2
D-2620v1
PK264-01A(B)

DRIVE = No.6 (0.98A/PHASE)
MSEL = 0FF
AC100VRC2 = ON
RC2 = OFFHOLD 40% = 0.067N・m

0.16

1.0A/PHASEINPUT CURRENT(A)TORQUE(N･m)

5.0

0.5

4.0

0.4

DRIVE = No.6 (0.98A/PHASE)
MSEL = OFF
AC100VRC2 = ON
RC2 = OFFHOLD 40% = 0.18N・m

5.0
4.0

PULLOUT TORQUEPULLOUT TORQUE

0.12

3.0

0.3

3.0

0.08

2.0

0.2

2.0

1.0

0.1

0.0

0.0

0.04

INPUT CURRENT

0.00
0.01

0.1

Fig.3
D-2620v1
PK266-01A(B)

1.0A/PHASE

fs 10

100
(s-1)

0.01

0.1

Fig.4
D-2620v1
PK268-01A(B)

DRIVE = No.6 (0.98A/PHASE)
MSEL = ON
AC100VINPUT CURRENT(A)TORQUE(N･m)
1.0

1

1.0

INPUT CURRENT

1.0A/PHASE

1

fs 10

0.0
100
(s-1)

DRIVE = No.6 (0.98A/PHASE)
MSEL = ON
AC100VINPUT CURRENT(A)TORQUE(N･m)

5.0

2.0

4.0

1.6

0.6

3.0

1.2

3.0

0.4

2.0

0.8

2.0

1.0

0.4

0.0

0.0

RC2 = ON
RC2 = OFFHOLD 40% = 0.37N・m

0.8

HOLD 40% = 0.62N・m

RC2 = ON
RC2 = OFF

5.0

4.0

PULLOUT TORQUEPULLOUT TORQUE

0.2

INPUT CURRENT

0.0
0.01

0.1

Fig.5
D-2620v1
PK244-01A(B)

1.2A/PHASE

fs 10

100
(s-1)

0.01

RC2 = ON
RC2 = OFFHOLD 40% = 0.11N・m

0.4

0.1

Fig.6
D-2620v1
PK245-01A(B)

DRIVE = No.8 (1.21A/PHASE)
MSEL = OFF
AC100VINPUT CURRENT(A)TORQUE(N･m)
0.5

11.2A/PHASE

0.5

4.0

0.4

1

fs 10

0.0
100
(s-1)

DRIVE = No.8 (1.21A/PHASE)
MSEL = OFF
AC100VINPUT CURRENT(A)TORQUE(N･m)

5.0

1.0

INPUT CURRENTHOLD 40% = 0.12N・m

RC2 = ON
RC2 = OFF

5.0
4.0

PULLOUT TORQUE

0.3

PULLOUT TORQUE

0.2
0.1

INPUT CURRENT

0.0
0.01

0.1

1

fs 10

3.0

0.3

3.0

2.0

0.2

2.0

1.0

0.1

0.0

0.0

100

1.0

INPUT CURRENT

0.01

(s-1)

0.1

自起動記

1

fs 10

0.0
100

デー
デー

(s-1)

横
縦

こ
-39-

D-2620v1

Instructions Manual

Fig.7
D-2620v1
PK264-02A(B)

2.0A/PHASEINPUT CURRENT(A)TORQUE(N･m)
0.5

RC2 = ON
RC2 = OFFHOLD 40% = 0.14N・m

0.4

Fig.8
D-2620v1
PK266-02A(B)DRIVE = No.F (2.0A/PHASE)
MSEL = OFF
AC100VPULLOUT TORQUE

2.0A/PHASEINPUT CURRENT(A)TORQUE(N･m)

5.0

1.0

4.0

0.8

DRIVE = No.F (2.0A/PHASE)
MSEL = OFF
AC100VRC2 = ON
RC2 = OFFHOLD 40% = 0.36N・m

5.0
4.0

PULLOUT TORQUE

0.3

3.0

0.6

3.0

0.2

2.0

0.4

2.0

1.0

0.2

0.0

0.0

INPUT CURRENT

0.1
0.0
0.01

0.1

Fig.9
D-2620v1
PK268-02A(B)

2.0A/PHASE

fs 10

0.01

RC2 = ON
RC2 = OFFPULLOUT TORQUE

0.1

Fig.10D-2620v1
PK296-01A(B)

DRIVE = No.F (2.0A/PHASE)
MSEL = OFF
AC100VHOLD 40% = 0.62N・m

1.6

100
(s-1)

INPUT CURRENT(A)TORQUE(N･m)
2.0

1

INPUT CURRENT

2.0A/PHASE

2.5

4.0

2.0

1

fs 10

0.0
100
(s-1)

DRIVE = No.F (2.0A/PHASE)
MSEL = ON
AC100VINPUT CURRENT(A)TORQUE(N･m)

5.0

1.0

HOLD 40% = 0.98N・m

RC2 = ON
RC2 = OFF

5.0

4.0
PULLOUT TORQUE

1.2

3.0

1.5

3.0

0.8

2.0

1.0

2.0

1.0

0.5

0.0

0.0

INPUT CURRENT

0.4

0.0
0.01

0.1

Fig.11
D-2620v1
PK299-01A(B)

2.0A/PHASE

fs 10

0.01

RC2 = ON
RC2 = OFF

fs 10

0.0
100
(s-1)

5.0

3.0

3.0

2.0

2.0
INPUT CURRENT

0.1

自起動記

1.0

0.0
0.01

1

4.0

PULLOUT TORQUE

1.0

0.1

DRIVE = No.F (2.0A/PHASE)
MSEL = ON
AC100VHOLD 40% = 2.02N・m

4.0

100
(s-1)

1.0

INPUT CURRENT(A)TORQUE(N･m)
5.0

1

INPUT CURRENT

1

fs 10

デー
デー

0.0
100

(s-1)

横
縦

こ
-40-

D-2620v1

Instructions Manual
１０－６．Conforming to Europe standards

R1

This product conducted the validation test of low voltage directive and EMC directivewith TÜV SÜD(TÜV SÜD Japan) for self-declaration of the CE making.
(1) Safety standards
EN 61800-5-1●Installation conditions・Protective class:・Overvoltage category:・Pollution degree:・Protective type:Ⅰ
Ⅱ
Class 2
IP10●Warning for UL standards
This product has no provision for motor over temperature protection.
Motor over temperature protection is required in the end use product.
●Low voltage directive
This product is designed for use as a built-in component.
・Install the product within an enclosure in order to avoid contact with thehand.
・Securely ground the protective earth terminals.
This product has no provision for motor over temperature protection and motor
overload protection. Motor over temperature protection and motor overload
protection is required in the end use product.
This product cannot detect a ground fault in an IT ground system power supply.
This product has no provision for ground fault protection. When wiring, follow
the wiring example. Also, consider next.
・Install the product in conformity with a local law and local regulation.
・Earth-Leakage Circuit Breaker(ELCB)：Rated current sensitivity 30mA・When connecting to the power supply of overvoltage category Ⅲ, use an
isolation transformer. Also,grounding the secondary side (1φ Neutral side)of the isolation transformer.
・Fault loop impedance：500 ohm or less
Wiring example
・TN SYSTEM
L

L
ELCB

N

DRIVERN

GroundingFault loop
-41A-

D-2620v1

Instructions Manual
R1
・TT SYSTEM
L

L
ELCB

DRIVERN

N

GroundingFault loop

(2) EMC standards
EN 61800-3●EMC derective
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.
Metal Enclosure

ShieldUser
controller(ProtectiveclassⅡ)

Metal Enclosure
Ferrite core
Metal Enclosure

D-2620v1
Motor

Transformer withreinforced insulation

GroundingGrounding

AC input-41B-

GroundingD-2620v1

Instructions Manual

The main parts which revised by this manual
Parts
P41A,P41B

Content【R1】
Addition of update contents of the standard EN 61800-5-1.
(Ground fault protection, Motor over temperature protection,
Motor overload protection)-42-

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.

C2306