Symbol | Signal | Specification |
O.H | Alarm indicator | The red indicator lights when overheat occurs. |
POWER | Power indicator | The green indicator lights when power is on. |
Im | Rotary switch for adjustment of the motor current | Adjust motor’s phase current. Turning it in CCW will decrease the current and in CW will increase. |
+ | Positive of opto-isolated | Connected to +5V power supply. Drive voltage ranges from +5V to +24V. Current-limiting resistance is needed when it is over 5V. |
PU | D4=OFF, PU is step pulse signal | With the falling edge of the signal PU, the motor executes an angular step. The input resistance is 220Ω. Low voltage 0-0.5V, high voltage 4-5V, pulse width>2.5μS. |
D4=ON, PU is positive step pulse signal |
+ | Positive of opto-isolated | Connected to +5V power supply. Drive voltage ranges from +5V to +24V. Current-limiting resistance is needed when it is over 5V. |
DR | D4=OFF, DR is direction signal | Change motor’s direction of rotation. Input resistance is 220Ω. Low voltage 0-0.5V, high voltage 4-5V, pulse width>2.5μS |
D4=ON, DR is negative step pulse signal |
+ | Positive of opto-isolated | Connected to +5V power supply. Drive voltage ranges from +5V to +24V. Current-limiting resistance is needed when it is over 5V. |
MF | Motor free signal | The motor current will be cut off and the driver stops working when it is effective. |
+ | Positive of opto-isolated | The motor current is cut off automatically and signal FL is effective (low voltage) when the temperature of the driver is over 70℃. The driver starts to work and the FL is cleared when the temperature falls to 50℃. |
FL | Negative of opto-isolated | Connect + to current limiting resistance of output signal and connect FL to ground. The maximum drive current is 50mA, the highest drive voltage is 50V. |
+V | Positive of power supply | 24-80VDC |
-V | Negative of power supply |
AC、BC | Connection | 
|
+A、-A |
+B、-B |
