Q2HB88 2-phase stepper motor driver
Product Description
Features
- High performance, low price
- Highest response frequency: 200Kpps
- Current of winding will be reduced to set current value when no step pulse command is received for 0.1 second
- Bipolar constant current chopping circuit
- Opto-isolated input/output
- Drive current is continuously adjustable from
0.5A /phase to 8A /phase (0.4A /phase to 6.4A /phase) - Single power supply voltage from 24V to 80VDC (40V to 130VDC)
- Work as double 4 step or 4-phase 8 step
- Overvoltage protection, overheat protection, overcurrent protection
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
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
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 |
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 |
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