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Last updated January 2002

ORIENTAL MOTOR U.S.A. CORP.

A Full Range of Driver Functions

Input/Output Signal (TB1)

Indication

24/36V

GND

TIMING

TIMING

C.OFF

C.OFF

DIR./CCW

DIR./CCW

PLS/CW

Input

Output

Input

Input

Input

24 VDC

10% or 

36 VDC

10%

Timing Signal

All Windings OFF Signal

Rotation Direction Signal

(CCW Pulse Signal)

Pulse Signal

(CW Pulse Signal)

PLS/CW

Input/Output

 Signal Name

4

Function Select Switches

Indicator

 Switch Name

Functions

1P/2P

F/H

Pulse input mode switch

Step angle select switch

Switches between 1-pulse input and 2-pulse input.

Switches the motor's step angle.

F (Full Step): 1.8˚/step, H (Half Step): 0.9˚/step

(F: 0.9˚/step, H: 0.45˚/step for High-Resolution Type)

Output current automatically drops to 25

40% 

approximately 0.1 second after the pulse input rises.

Changes power supply voltage.

For 24 VDC and 36 VDC

ACD

24/36V

Automatic current cutback 

function select switch

Power supply voltage

select switch

3

Current Adjustment Potentiometer

Indicator

Name of Potentiometer

Functions

RUN

VR

STOP

VR

Motor run current 
potentiometer

Can adjust the motor 
running current.

Motor stop current 
potentiometer

Can adjust the current 
at the motor standstill.

2

Signal Monitor Display

 

1

Indicator   Color Functions

POWER

Green Power input display

DIR

     /CCW

C.OFF

TIMING

POWER

BLUE

RED

GREEN

BLACK

WHITE

YELL

OW

PULSE

        /CW

TB1

1  

2  

3  

4

OFF

VE

XT

A

C.C

.+

C.C.-

AC

D

F/H

1P

/2P

24/36V

RUN

    VR

STO

P

     

VR

P0W

TB2

Motor terminal 
blocks

4

3

1

2

To see specifications and pricing, use the Web Catalog search function.

Driver Model

: CSD2120-T

Web Catalog–Connection and Operation

Summary of Contents for CSD2120-T

Page 1: ...t automatically drops to 25 40 approximately 0 1 second after the pulse input rises Changes power supply voltage For 24 VDC and 36 VDC ACD 24 36V Automatic current cutback function select switch Power supply voltage select switch 3 Current Adjustment Potentiometer Indicator Name of Potentiometer Functions RUN VR STOP VR Motor run current potentiometer Can adjust the motor running current Motor sto...

Page 2: ...Web Catalog search function Driver Model CSD2120 T Web Catalog Connection and Operation Description of Input Output Signals Pulse CW Input and Rotation Direction CCW Input Signal 1 Pulse Input Mode Pulse Input Signal Pulse signal is input to the PULSE CW terminal When the photocoupler state changes from ON to OFF the motor rotates one step The direction of rotation is determined by the rotation di...

Page 3: ...mmediately after switching the All Windings Off input signal to the photocoupler OFF state or the motor may lose synchronism In general a minimum interval of 100 ms is required 3 The motor will not operate properly if a pulse signal is input when either the CW or CCW pulse is in the photocoupler ON state The shaded area indicates when the photocoupler is ON Current Cutback All Windings Off 2 100 s...

Page 4: ...g current is set for the rated current at the time of shipping The RUN potentiometer can be used lower the operating current to reduce temperature rise in the motor driver adjust torque margin and reduce vibration Note The motor RUN current should be less than the motor rated current To see specifications and pricing use the Web Catalog search function Driver Model CSD2120 T Web Catalog Connection...

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