２-phase Stepping Motor Driver

ADB-2640U
Instructions Manual(For designers' use)

Please ensure to read and understand thisInstructions Manual before using the product.
Please keep this Instructions Manual at hand

MN0341ADB-2640U

Instructions Manual
Introduction
This Instructions Manual describes the safe and proper method of handing"2-phase Stepping Motor Driver ADB-2640U" 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.

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ADB-2640U

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

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ADB-2640U

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
11
12
12
13

４． Function Set-up by Use
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 ROTATE CHARACTERISTIC SELECT switch

14
15
16
17
17

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

18
19

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

20
21
22
23

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

24

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Instructions Manual
PAGE

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

25
26

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

27
27

１０． Specifications
10-1. General Specifications
10-2. I/O Signal(1) Example Circuit Connection (J1)
(2) Drive pulse input (CW,CCW)(3) Motor excitation stop input (M.F)
10-3. Overheat Alarm (O.H.A) LED
10-4. Dimensions
10-5. Applicable Motors
10-6. Torque Characteristics
10-7. Conforming to Europe standards
The main parts which revised by this manual

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28
29
30
31
32
33
34
35
40

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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.

CAUTION(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.

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ADB-2640U

Instructions Manual
１－２．Safety Information for Handling●Overall:CAUTION
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 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 motor
deterioration or damage and 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 motor.
Ensure correct setting.
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ADB-2640U

Instructions Manual●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):
CAUTION
Erroneous connection may cause
breakage of the motor or the driver.
Correctly connect the DC Input/Motor
output connector.

●When inputting power:
CAUTION
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.

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

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ADB-2640U

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
Injury or fire is apprehended due to
unexpected behavior.
Do not replace fuse.
Do not disassemble, repair or modify.

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Instructions Manual

２．Overview
２－１．Characteristics
ADB-2640U is a driver for a 2-phase stepping motor with DC+24V input.
Driving method is unipolar constant current type.
It can drive a 2-phase stepping motor of unipolar winding ranging from
0.4A/phase to 2.0/phase.
Step angles can be selected from fourteen step angles ranging from 1 division to
32 division of the basic angle.
HOLD CURRENT and DRIVE CURRENT can be set up.

２－２．Product Configuration●ADB-2640U

One unit(main frame)

J1, J2, J3 of the housing and the contact is not in accessories.

２－３．Appearance

Signal Input Connector (J1)

Operating section

Mounting section

O.H.A LED (RED)POWER LED (GREEN)

Melec Made in Ja pan

N

ADB-2640UN

Model name

Motor Output
Connector (J3)

Operation section

DC Input Connector (J2)

Mounting section-10-

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Instructions Manual

３．Name and Function of Each Section
３－１．Signal I/O Connector（Ｊ１）
ADB-2640U
J1
1

CW+

2

CW-

3

CCW+

4

CCW-

5

M.F+

6

M.F-

7

(N.C)

8

(N.C)

CW drive pulse signal input terminal●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.

３－２．DC Input/Motor Output Connector（Ｊ２，Ｊ３）
ADB-2640U

J2
DC+ DC+ 1
DC input terminal
0V DC- 2

ADB-2640U

MOTOR●Power input terminal.
DC power supply is connected.

J3
A

1

A

2

B

3
Motor output terminal

B

4

A.COM

5

B.COM

6

●Outputs current to drive the motor.

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Instructions Manual
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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Instructions Manual
３－５．Operating Section
ADB-2640U(ON ⇔OFF)

STEP ANGLE SELE CT sw tch(STEP SEL)

POWER

DRIVE CURRENT SE LECT
swit ch (DRIVE I. SEL)

Name of Operating Section

4

ROTATE C HARACTERISTIC SE LECT
switch (R.C SEL)

OHA

1
2
3
4

HOLD CURRE NT SELECT
swit ch (HOLD I. SEL)(ON ⇔OFF)

1
2
3
4

PULSE INPUT TYPE SE LECT
switch (SPI SEL)

Function

DRIVE CURRENT SELECT switch

Selects DRIVE CURRENT.

ROTATE CHARACTERISTIC SELECT
switchSelects a characteristic of motor rotation.

Selects a step angle.

PULSE INPUT TYPE SELECT
switchSelects a pulse input type.

SB：〔ON〕

2P：〔OFF〕
H3：〔OFF〕

3 HOLD CURRENT SELECT switch
2 HOLD CURRENT SELECT switch

RC：〔OFF〕

SA：〔ON〕

1 STEP ANGLE SELECT switch
4〔No.7〕

SC：〔OFF〕

3 STEP ANGLE SELECT switch
2 STEP ANGLE SELECT switch

Factory Setting

Selects HOLD CURRENT.

H2：〔ON〕
H1：〔ON〕

1 HOLD CURRENT SELECT switch-13-

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Instructions Manual

４．Function Set-up by Use
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 STEP SEL switch.
The step angle can be selected from six different
types of step angles.

(1) Set the step angle required by the STEP SEL switch [SA,SB,SC].
●Relationship between the STEP SEL switch and the step angle.
STEP SEL switch
SC
SB
SA
ON
ON
ON
ON
ON
OFF
ON
OFF
ON
ON
OFF
OFF
OFF
ON
ON
OFF
ON
OFF
OFF
OFF
ON
OFF
OFF
OFF

1/
Divisions
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--14-(Factory setting)ADB-2640U

Instructions Manual
４－２．Setting HOLD CURRENT SELECT switch
注意
CAUTION
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 HOLD I.SEL switch.
The ratio of HOLD CURRENT to DRIVE CURRENT can be selected.

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

100

DRIVE I.SEL〔No.0～No.A〕
HOLD I.SEL switch
H3
H2
H1
OFF
OFF
OFF
OFF
OFF
ON
OFF
ON
OFF
OFF
ON
ON
ON
OFF
OFF
ON
OFF
ON
ON
ON
OFF
ON
ON
ON

Ratio of HOLD
CURRENT (％)
10
20
30
40
50
60
70
100

(Factory setting)

DRIVE I.SEL〔No.B～No.F〕
HOLD I.SEL switch
H3
H2
H1
OFF
OFF
OFF
OFF
OFF
ON
OFF
ON
OFF
OFF
ON
ON
ON
OFF
OFF
ON
OFF
ON
ON
ON
OFF
ON
ON
ON

Ratio of HOLD
CURRENT (％)
10
20
30
40
50
60
70
－

● HOLD CURRENT changes relative to DRIVE CURRENT setting.
The ratio of HOLD CURRENT [100%] represents the same as the setting for
DRIVE CURRENT.
● The effective range of the HOLD I.SEL switch varies according to the settingof the DRIVE I.SEL switch.
●HOLD電流の割合を高くすると、停止時のモータ発熱が高くなります。
The greater the ratio of HOLD CURRENT grows, the more heat the motor
generates when is on holding-state.

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

DRIVE CURRENT is set up with the DRIVE I.SEL switch.

(1) Set the switch No. to the setting specified in the table "10-5. 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
0.40
0.50
0.60
0.70
0.80
0.90
1.00
1.10
1.20
1.40
1.50
1.70
1.80
1.90
2.00

(Factory setting)-16-

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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.

Pulse input method is set up with the SPI SEL switch.
Set this switch with power OFF.

(1) Turn power [OFF].
(2) Set the SPI SEL [2P/1P] switch.
SPI SEL

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 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-)
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 ROTATE CHARACTRISTIC SELECT switch
Rotate character is set up with the ROTATE CHARACTRISTIC SEL
switch.
Set this switch with power OFF.
●When the division of the STEP SEL switch is 1/1 or 1/2,
by setting the R.C SEL switch to [OFF] the vibration of the motorin a acceleration/deceleration drive may reduce.

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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 5mm away from other equipment.
However, please be installed to a distance of at least 15mm from the heating element.

5mm or more

15mm or moreheating
element

5mm or more
ADB-2640U
ADB-2640U

5mm or more

5mm 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 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.

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ADB-2640U

Instructions Manual
５－２．Mounting Method
The round holes on the main frame are used.

The following items are required:●M-3 screw (8mm or more in length):●M-3 spring washer:●M-3 flat washer:222(1) Fix the product at the two round holes on the main frame.
●Mounting example

Fixing witha screw

Fixing witha screw

Ｍ-３ screw
Ｍ-３ spring washer
Ｍ-３ flat washer-19-

ADB-2640U

Instructions Manual

６．Connection
６－１．Overview of Connection Configuration

DC Power Supply
DC+24V
0V(GND)

Motor

User
Controller
Twisted pair wire

J1
1
2
3
4
5
6
7
8

CW+
CWCCW+
CCWM.F+
M.F(N.C)
(N.C)

A
A
B
B
A.COM
B.COM

CWP
CWP
CCWP
CCWP
+COM
M.F

J3 1 2 3 4 5 6

J2
DC+
DC-

1
2

ADB-2640U●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.
●For the driver's power supply, use a DC power supply with reinforced insulation
on its primary and secondary sides.

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ADB-2640U

Instructions Manual
６－２．Connecting Signal I/O Connector（Ｊ１）
The following items are required:●Housing for J1 (51103-0800:Molex)●Contact for J1 (50351-8100:Molex)●Manually operated crimping tool
for AWG28-22(57295-5000:Molex)

One unit
6 contacts
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 6 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
さい。
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

8

7

6

5

4

3

2

1

〈Crimping〉〈Wiring〉 〈Insertion〉 〈Connection〉
Contact Housing
ADB-2640U
for J1(0.15mm2 or more)
J1
1
1 CW+
Drive pulse input
2
2 CW3
3 CCW+
Drive pulse input
4
4 CCW5
5 M.F+ Motor excitation
6
6 M.F- stop input
7
7 (N.C)88 (N.C)-21-

ADB-2640U

Instructions Manual
６－３．Connecting DC Input/Motor Output Connector（Ｊ２，Ｊ３）
CAUTION
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 (51067-0600:Molex)●Contact for J2,J3 (50217-9101:Molex)●Manually operated crimping tool
for AWG24-18(57189-5000:Molex)

One unit
One unit
8 contacts
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 6 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 2

1

Housing for J3 6

5

4

3

2

〔DC input Connector〕

ADB-2640U〈Connection〉
Housing
for J2J2

DC+24V DC+ 1
0V DC- 2

1
2〈Crimping〉〈Insertion〉〈Wiring〉
Contact(0.3mm2 or more)(0.3mm2-22-

or more)DC
Power Supply
DC+24V
0V(GND)1

ADB-2640U

Instructions Manual〔Motor output Connector〕
unipolar winding〈Connection〉〈Crimping〉〈Insertion〉〈Wiring〉
ADB-2640U
Housing Contact
Leads of the motor(0.3mm2 or more,
for J3J35m Max.)Orange [Brown] (Black)
A
1
1
A

2

2

Blue [Orange] (Green)

B

3

3

Red [Red]（Red）

B

4

4

Yellow [Yellow]（Blue）

A.COM

5

5

White [Black]（Yellow）

B.COM

6

6

Black [White]（White）

Motor●Color indications for leads of the motor indicate motor of the SANYO DENKI CO., LTD..
Color indications for leads of the motor in parentheses[ ] indicate motor of the
Shinano Kenshi Co., Ltd..
Color indications for leads of the motor in parentheses( ) indicate motor of the
ORIENTAL MOTOR Co., Ltd..
●Use a cable of 5m or less for the motor cable .

６－４．Inputting PowerCAUTION
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.

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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
PULSE INPUT TYPE SELECT switch
Setting of ROTATECHARACTERISTIC SELECT switch
Setting of HOLD CURRENT
SELECT switch
Setting of
PULSE INPUT TYPE SELECT switch
Setting of DRIVE CURRENT
SELECT switch

Check
STEP SEL(SA,SB,SC)RC SELHOLD I.SEL(H1,H2,H3)
SPI SEL(1P/2P)DRIVE I.SEL(switch No.)

Connection of J1
Connection of J2

DC+, DC-

Connection of J3

MOTOR

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Remarks

ADB-2640U

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.

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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.

・Wiring error with the motor
and the driver.
・The M.F signal is input.
・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
・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.
・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 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.

(1) 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.
(2) Disconnection of the motor output line may cause the driver to fail.
●Disconnection of the motor output line cable.
●Loose connection of connector.
(3) 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.
-26-

ADB-2640U

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.

-27-

ADB-2640U

Instructions Manual

１０．Specifications
１０－１．General Specifications

Supply Power

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: 2.5A *2● Rated input current :〔HOLD I.SEL ⇒ Approx. 40％ set up〕
at HOLD
DC+24V: 0.6A

Driving method

Unipolar constant current type

Motor output
current●DRIVE CURRENT●HOLD CURRENT

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

0.30A/phase～2.00A/phase
Approx. 40% of DRIVE CURRENT●STEP ANGLE selection●HOLD CURRENT selection
Functions ofOperating Sections ●DRIVE CURRENT selection●PULSE INPUT TYPE selection●ROTATE CHARACTERISTIC selection
Overheat alarm
Operating Ambient
Temperature
Operating Ambient
Humidity

Altitude

Photo-coupler input
Photo-coupler input(STEP SEL)(HOLD I.SEL)(DRIVE I.SEL)(SPI SEL)(R.C SEL)●Overheat alarm (O.H.A LED)
0℃ ～ +40℃(No freezing allowed.)

80％RH 以下

(No condensation allowed.)

Storing Temperature -10℃ ～ +55℃
Storing Humidity(factory-set)

80％RH or less

(No freezing allowed.)(No condensation allowed.)

Up to 1000m above sea level
Indoor (Exposure to direct sun is not allowed.)

Atmosphere

Without any explosive, corrosive or inflammable gas, oil mist,
or dust.

Withstanding
Vibration
Insulation
resistance

No abnormality should be found after a vibration testat 10～55Hz, 0.15mm P-P
DC connector - signal connector - Frame
DC500V 100MΩ or more
(Each other)

Exterior Dimensions
Weight*1*2

H

70 × W70 × D28 (mm)0.090kg

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

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ADB-2640U

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

Example connection of
The user controller

Y
26LS31

CWP

CW+

CWP

CW-

ADB-2640U

1

300Ω

2

Z
Y
26LS31

Photo-coupler

CCWP

CCW+

CCWP

CCW-

3

300Ω

4

Z

Photo-coupler

+5V
+COM

M.F+

M.F

M.F-

5

1.3kΩ

6
Photo-coupler

GND

-29-

(N.C)

7

(N.C)

8

ADB-2640U

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)② Timing chart

ADB-2640U

CW+

1

CW-

2

300Ω

Photo-coupler

90％

CWP

CCW+

3

CCW-

4

300Ω

10％
Photo-coupler

CCWP
t1

t2
tf
t3

[To the line driver 26LS31］

tr

Y

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

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

Maximum response frequency : 640kHz(at 50％ duty)● 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 about "t1".
DRIVE CURRENT continues if pulse is input on driving-state.
④ Direction of rotation

CCW

CW(Clockwise)-30-

ADB-2640U

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 4.5 V～26.4 V.
(Photo-coupler diode VF≒ 1.1 V)(J1)

ADB-2640U

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≦300ms
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.)-31-

ADB-2640U

Instructions Manual
１０－３．Overheat alarm LED（O.H.A）
WARNING
Overheating may cause fire.
Stop operation when this LED comes on.

● In case of internal temperature of the driver reaches approx. 70℃ or more,
O.H.A LED comes on.
At this time the motor output current is not blocked.
● When O.H.A LED comes on, stop operation and check if there is any
abnormality occurring with the motor and the driver.
● Provide mechanical cooling, for example, if O.H.A LED comes on while
no abnormality is detected.
● Continuous operation is possible unless O.H.A LED comes on.

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ADB-2640U

Instructions Manual
１０－４．Dimensions（Unit：ｍｍ）

2.5

3.5

Ｆ０１２
Ｅ

７８９Ａ
６

３４５

2.5

70

65

ＢＣＤ

15.5
28

24.9

3

70

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ADB-2640U

Instructions Manual
１０－５．Applicable Motors●ADB-2640U can drive a 2-phase stepping motor of unipolar winding
ranging from 0.4A/phase to 2.0A/phase.
SANYO DENKI CO., LTD.

Basic
Angle
(°)

Setting

Current
DRIVE I.SEL(A/phase)switch No.

Torque Data
Fig. No.

□56mm

103H7121-0140(0110)
103H7123-0140(0110)
103H7126-0140(0110)

1.8
1.8
1.8

1.0
1.0
1.0

7
7
7

Fig.1
Fig.2
Fig.3

□56mm

103H7121-0440(0410)
103H7123-0440(0410)
103H7126-0440(0410)

1.8
1.8
1.8

2.0
2.0
2.0

F
F
F

Fig.4
Fig.5
Fig.6

Shinano Kenshi Co., Ltd..

Basic
Angle
(°)

Setting

Current
DRIVE I.SEL(A/phase)switch No.

Torque Data
Fig. No.

□42mm

P-PMSA-U42D3M(U42D3MD)

1.8

0.8

5

Fig.7

□28mm

P-PMSB-U28DA1(U28DA1D)

1.8

1.0

7

Fig.8

□42mm

P-PMSA-U42D2(U42D2D)

1.8

1.2

9

Fig.9

□56.4mm P-PMSA-U56D1(U56D1D)
P-PMSA-U56D3(U56D3D)
P-PMSA-U56D5(U56D5D)

1.8
1.8
1.8

2.0
2.0
2.0

F
F
F

Fig.10
Fig.11
Fig.12ORIENTAL MOTOR Co., Ltd.

Basic
Angle
(°)

Setting

Current
DRIVE I.SEL(A/phase)switch No.

Torque Data
Fig. No.

□28mm

PKP223U09A2(B2)
PKP225U09A2(B2)

1.8
1.8

0.95
0.95

6
6

Fig.13
Fig.14□42mm

PK243-01A(B)

1.8

0.95

6

Fig.15□56.4mm PK264-01A(B)PK266-01A(B)PK268-01A(B)

1.8
1.8
1.8

1.0
1.0
1.0

7
7
7

Fig.16
Fig.17
Fig.18□42mm

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

1.8
1.8

1.2
1.2

9
9

Fig.19Fig.20□56.4mm PK264-02A(B)PK266-02A(B)PK268-02A(B)

1.8
1.8
1.8

2.0
2.0
2.0

F
F
F

Fig.21
Fig.22
Fig.23

7－

Factory Setting() : Both axis

● Please contact us if you want to use the motor other than the above to our office.

-34-

ADB-2640U

Instructions Manual
１０－６．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(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.

-35-

ADB-2640U

Instructions Manual

Fig.1
ADB-2640U
103H7121-0140(0110)
1.0A/PHASE

DRIVE I.SEL = No.7 (1.0A/PHASE)
DC24V

INPUT CURRENT(A)TORQUE(N･m)0.50.4DRIVE I.SEL = No.7 (1.0A/PHASE)
DC24V

INPUT CURRENT(A)TORQUE(N･m)

5.0

HOLD 40% = 0.15N・m

Fig.2
ADB-2640U
103H7123-0140(0110)
1.0A/PHASE
1.0

5.0

HOLD 40% = 0.35N・m
PULLOUT TORQUE

4.0

0.8

0.3

3.0

0.6

3.0

0.2

2.0

0.4

2.0

1.0

0.2

0.0

0.0

PULLOUT TORQUE

0.1

INPUT CURRENT

0.0
0.01

0.1

Fig.3
ADB-2640U
103H7126-0140(0110)
1.0A/PHASE

1

100
(s-1)

INPUT CURRENT(A)

HOLD 40% = 0.56N・m

1.6

INPUT CURRENT

0.01

DRIVE I.SEL = No.7 (1.0A/PHASE)
DC24V

TORQUE(N･m)
2.0

fs 10

4.0

0.1

Fig.4
ADB-2640U
103H7121-0440(0410)
2.0A/PHASE

1.0

1

0.5

4.0

0.4

3.0

0.3

2.0

0.2

0.0
100
(s-1)

DRIVE I.SEL = No.F (2.0A/PHASE)
DC24V

INPUT CURRENT(A)TORQUE(N･m)

5.0

fs 10

5.0

HOLD 40% = 0.14N・m

4.0

PULLOUT TORQUEPULLOUT TORQUE

1.2
0.8

3.0
2.0

INPUT CURRENTINPUT CURRENT

0.4
0.0
0.01

0.1

Fig.5
ADB-2640U
103H7123-0440(0410)
2.0A/PHASE

1

0.0

0.0

100
(s-1)

PULLOUT TORQUE

0.6

0.4

1.0

0.01

INPUT CURRENT(A)

HOLD 40% = 0.32N・m

0.8

0.1

DRIVE I.SEL = No.F (2.0A/PHASE)
DC24V

TORQUE(N･m)
1.0

fs 10

1.0

Fig.6
ADB-2640U
103H7126-0440(0410)
2.0A/PHASE

0.0

0.01

0.1

1

fs 10

1

2.0

4.0

1.6

3.0

1.2

2.0

0.8

1.0

0.4

0.0

0.0

100
(s-1)

fs 10

0.0
100
(s-1)

DRIVE I.SEL = No.F (2.0A/PHASE)
DC24V

INPUT CURRENT(A)TORQUE(N･m)

5.0

5.0

HOLD 40% = 0.50N・m

4.0
PULLOUT TORQUE

3.0

2.0

INPUT CURRENTINPUT CURRENT

0.2

0.1

自起動記

1.0

0.01

0.1

1

fs 10

0.0

100
(s-1)

デ
デ

横

-36-

ADB-2640U

Instructions Manual

Fig.7
ADB-2640U
P-PMSA-U42D3M(U42D3MD)
0.8A/PHASE

DRIVE I.SEL = No.5 (0.8A/PHASE)
DC24V

INPUT CURRENT(A)TORQUE(N･m)
0.5

Fig.8
ADB-2640U
P-PMSB-U28DA1(U28DA1D)
1.0A/PHASE
0.10

4.0

0.08

0.3

3.0

0.06

0.2

2.0

0.04

1.0

0.02

0.0

0.00

0.4

INPUT CURRENT(A)TORQUE(N･m)

5.0

HOLD 40% = 0.14N・m

DRIVE I.SEL = No.7 (1.0A/PHASE)
DC24V

5.0

HOLD 40% = 0.018N・m

4.0

PULLOUT TORQUE

0.1

INPUT CURRENT

0.0
0.01

0.1

Fig.9
ADB-2640U
P-PMSA-U42D2(U42D2D)
1.2A/PHASE

1

100
(s-1)

INPUT CURRENT(A)

HOLD 40% = 0.099N・m

0.4
0.3

PULLOUT TORQUE

0.2

2.0
1.0

INPUT CURRENT

0.01

DRIVE I.SEL = No.9 (1.2A/PHASE)
DC24V

TORQUE(N･m)
0.5

fs 10

3.0

PULLOUT TORQUE

0.1

Fig.10
ADB-2640U
P-PMSA-U56D1(U56D1D)
2.0A/PHASE

1

1.0

4.0

0.8

3.0

0.6

2.0

0.4

0.0
10

100
(s-1)

DRIVE I.SEL = No.F (2.0A/PHASE)
DC24V

INPUT CURRENT(A)TORQUE(N･m)

5.0

fs

5.0

HOLD 40% = 0.22N・m

4.0
PULLOUT TORQUE

3.0
2.0

INPUT CURRENTINPUT CURRENT

0.1
0.0
0.01

0.1

Fig.11
ADB-2640U
P-PMSA-U56D3(U56D3D)
2.0A/PHASE

1

0.2

0.0

0.0

100
(s-1)

INPUT CURRENT(A)0.1

Fig.12
ADB-2640U
P-PMSA-U56D5(U56D5D)
2.0A/PHASE

1

2.0

fs 10

0.0
100
(s-1)

DRIVE I.SEL = No.F (2.0A/PHASE)
DC24V

INPUT CURRENT(A)TORQUE(N･m)

5.0

HOLD 40% = 0.41N・m

1.0

0.01

DRIVE I.SEL = No.F (2.0A/PHASE)
DC24V

TORQUE(N･m)
1.0

fs 10

1.0

5.0

HOLD 40% = 0.78N・m
PULLOUT TORQUE

0.8

PULLOUT TORQUE

0.6

0.4

4.0

1.6

4.0

3.0

1.2

3.0

2.0

0.8

1.0

0.4

0.0

0.0

INPUT CURRENT

2.0

INPUT CURRENT

0.2
0.0

0.01

0.1

1

fs 10

100
(s-1)

自起動記

1.0

0.01

0.1

1

fs 10

0.0

100
(s-1)

デ
デ

横

-37-

ADB-2640U

Instructions ManualFig.13
ADB-2640U
PKP223U09A2(B2)
0.95A/PHASE

DRIVE I.SEL = No.6 (0.9A/PHASE)
DC24V

INPUT CURRENT(A)TORQUE(N･m)0.10

Fig.14
ADB-2640U
PKP225U09A2(B2)
0.95A/PHASE
0.20

4.0

0.16

0.06

3.0

0.12

0.04

2.0

0.08

1.0

0.04

0.0

0.00

0.08

INPUT CURRENT(A)TORQUE(N･m)

5.0

HOLD 40% = 0.021N・m

DRIVE I.SEL = No.6 (0.9A/PHASE)
DC24V

5.0

HOLD 40% = 0.045N・m

4.0

PULLOUT TORQUE

0.02

INPUT CURRENT

0.00
0.01

0.1

Fig.15
ADB-2640U
PK243-01A(B)
0.95A/PHASE

1

10

100
(s-1)

3.0
2.0
1.0

INPUT CURRENT

0.01

0.1

DRIVE I.SEL = No.6 (0.9A/PHASE)
DC24V

Fig.16
ADB-2640U
PK264-01A(B)

INPUT CURRENT(A)TORQUE(N･m)

TORQUE(N･m)
0.20

fs

PULLOUT TORQUE

1.0A/PHASE

1

fs 10

0.0
100
(s-1)

DRIVE I.SEL = No.7 (1.0A/PHASE)
DC24V

INPUT CURRENT(A)

5.0

0.5

4.0

0.4

0.12

3.0

0.3

3.0

0.08

2.0

0.2

2.0

1.0

0.1

0.0

0.0

HOLD 40% = 0.059N・m
PULLOUT TORQUE

0.16

0.04

INPUT CURRENT

0.00
0.01

0.1

Fig.17
ADB-2640U
PK266-01A(B)

1.0A/PHASE

1

100
(s-1)

INPUT CURRENT(A)

4.0

1.6

0.6

3.0

1.2

0.4

2.0

0.8

PULLOUT TORQUE

0.1

1.0A/PHASE

1.0

1

fs 10

0.0
100
(s-1)

DRIVE I.SEL = No.7 (1.0A/PHASE)
DC24V

INPUT CURRENT(A)TORQUE(N･m)
2.0

0.8

4.0

INPUT CURRENT

Fig.18
ADB-2640U
PK268-01A(B)

5.0

HOLD 40% = 0.37N・m

PULLOUT TORQUE

0.01

DRIVE I.SEL = No.7 (1.0A/PHASE)
DC24V

TORQUE(N･m)
1.0

fs 10

5.0

HOLD 40% = 0.17N・m

5.0

HOLD 40% = 0.66N・m

4.0

PULLOUT TORQUE

3.0

2.0

自起動記

INPUT CURRENTINPUT CURRENT

0.2
0.0

0.01

0.1

1

fs 10

1.0

0.4

0.0

0.0

100
(s-1)

1.0

0.01

0.1

1

fs 10

0.0

100
(s-1)

デ
デ

横

-38-

ADB-2640U

Instructions ManualFig.19ADB-2640U
PK244-01A(B)

1.2A/PHASE

DRIVE I.SEL = No.9 (1.2A/PHASE)
DC24V

Fig.20
ADB-2640U
PK245-01A(B)

INPUT CURRENT(A)TORQUE(N･m)

TORQUE(N･m)
0.5HOLD 40% = 0.096N・m

0.4
0.3

PULLOUT TORQUE

0.2
INPUT CURRENT

0.1
0.0
0.01

0.1

Fig.21
ADB-2640U
PK264-02A(B)

2.0A/PHASE

1

4.0

0.4

3.0

0.3

2.0

0.2

1.0

0.1

0.0

0.0

100
(s-1)

PULLOUT TORQUEINPUT CURRENT

0.3
0.2

4.0

0.8

3.0

0.6

2.0

0.4

0.0

Fig.23
ADB-2640U
PK268-02A(B)

2.0A/PHASE

1

fs 10

0.0
100
(s-1)

DRIVE I.SEL = No.F (2.0A/PHASE)
DC24V

INPUT CURRENT(A)
5.0

PULLOUT TORQUE

4.0
3.0
2.0

fs 10

1.0

0.2

0.0

0.0

100
(s-1)

1.0

0.01

0.1

1

fs 10

0.0
100
(s-1)

DRIVE I.SEL = No.F (2.0A/PHASE)
DC24V

INPUT CURRENT(A)TORQUE(N･m)
2.0

1

INPUT CURRENT

0.1

0.1

2.0A/PHASE

1.0

HOLD 40% = 0.37N・m

INPUT CURRENT

0.01

0.1

TORQUE(N･m)PULLOUT TORQUE

3.0
2.0

INPUT CURRENT(A)

1.0

5.0
4.0

0.01

5.0

INPUT CURRENT(A)

HOLD 40% = 0.11N・m

Fig.22
ADB-2640U
PK266-02A(B)

HOLD 40% = 0.14N・m

0.4

0.5

DRIVE I.SEL = No.F (2.0A/PHASE)
DC24V

TORQUE(N･m)
0.5

fs 10

5.0

1.2A/PHASE

DRIVE I.SEL = No.9 (1.2A/PHASE)
DC24V

5.0

HOLD 40% = 0.65N・m

1.6

4.0
PULLOUT TORQUE

1.2

3.0

0.8

2.0

INPUT CURRENT

0.4

自起動記

1.0

0.0

0.01

0.1

1

fs 10

デ
デ

0.0

100
(s-1)

横

-39-

ADB-2640U

Instructions Manual
１０－７．Conforming to Europe standards(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 derective
This product declares the CE marking based on the EMC(2014/30/EU) 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.
ShieldMetal Encloseure
User
controller(ProtectiveclassⅡ)

Grounding
AC line filter

Metal Encloseure

DC power
supplyMotor

AC input
Grounding
ADB-2640U

GroundingGroundingGrounding-40-

ADB-2640U

Instructions Manual

The main parts which revised by this manual
Parts

Content-41-

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.

C1609