Current setting

1.    STOP/Im is the rotary switch that can set output current of holding motor status as 20%-80% of normal output current (decrease in CW, increase in CCW).
2.    RUN/Im is the rotary switch for adjustment of the motor current.

 

R-1	0	1	2	3	4	5	6	7	8	9	A	B	C	D	E	F
Q2HB88 Im(A)	0.5	1.0	1.5	2.0	2.5	3.0	3.5	4.0	4.5	5.0	5.5	6.0	6.5	7.0	7.5	8.0

 

 

 

Caution

1.         Please don’t reverse the power supply, supply voltage shouldn’t exceed 80VDC (130VDC).

2.         Input control signal is 5V, current-limiting resistance should be connected when it is over 5V.

3.         O.H / L.V is low input voltage / overheat indicator. The indicator lights and the driver stops working when the driver temperature is over 70℃ or input voltage is below 24V (40V). It restarts working until the temperature falls to 50℃. The heat sink is needed when overheat occurs.

 

Parameter switch function

 

Steps per revolution	1(full step)	2(half step)
DP1	ON	OFF
DP3	ON, double pulse: PU is positive step pulse signal, DR is negative step pulse signal
	OFF, single pulse: PU is step pulse signal, DR is direction signal

 

 

Terminal function

Symbol	Signal	Specification
+	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	Connected to +5V power supply. Drive voltage ranges from +5V to +24V. Current-limiting resistance is needed when it is over 5V.
DR	DP3=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>200μS
	DP3=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.
PUS	DP3=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.
	DP3=ON, DR is positive step pulse signal
+	Positive of opto-isolated overheat / low voltage protection	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℃.
FAL	Negative of opto-isolated overheat / low voltage protection	Connect + to current limiting resistance of output signal and connect FAL to ground. The maximum drive current is 50mA, the highest drive voltage is 50V.
N	Dummy port
+V	Positive of power supply	24-80VDC (40-130VDC)
-V	Negative of power supply
+A、-A	Connection
+B、-B