Q2HB68 2-phase stepper motor driver
Product Description
- High performance, low price
- Highest response frequency: 50Kpps
- Current of winding will be reduced by approximately 50% when no step pulse command is received for 0.1 second
- Bipolar constant current chopping mode
- Opto-isolated signal I/O
- Drive current is continuously adjustable from
- Single power supply voltage from 24V to 80VDC
Caution
- Please don’t reverse the power supply, supply voltage shouldn’t exceed 80VDC.
- Input control signal is 5V, current-limiting resistance should be connected when it is over 5V.
- Alarm indicator lights and the driver stops working when the driver temperature is over 70℃. It restarts working until the temperature falls to 50℃. The heat sink is needed when overheat occurs.
- 6 or 8 leads motors have to be used because of the special control circuit in the driver.
Parameter switch function
Steps per revolution
1(full step)
2(half step)
D0
ON
OFF
D4
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
Steps per revolution
1(full step)
2(half step)
D0
ON
OFF
D4
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
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 |
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 |
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