Our DM542 microstep stepper driver adopts the advanced bipolar constant-current chopper drive technology, it shows stable operation, provides excellent high torque. The DM542 has the feature of low-noise, low-vibration and low-heating. The voltage of stepper driver is DC18~50V. It applies to 2-phase hybrid stepper motor under 4.2A current. The DM542 has 15 kinds of microsteps. The maximum step number is 25600 steps/rev (microstep is 1/128). The peak operating current ranges from 1.0A to 4.2A, and the output current has 8 stalls. The DM542 stepper driver has automatic semi-flow, over-voltage, under-voltage, and over-current protection functions. Our DM542 stepper driver can be applied in a variety of small scale automation equipment and instruments, such as labeling machine, cutting machine, packing machine, drawing machine, engraving machine, CNC machine and so on.
1.Features
● Adoption of 32-bit DSP, pure sine wave subdivision technology
● Low-noise, low-vibration and low temperature rising
● Voltage 18-50VDC
● With 8 stalls output current setting, peak current4.2A
● With 15 stalls microstep subdivision setting
● Automatic half current, self-test, over voltage, under voltage, over current protection
● Internal optical isolation, highest frequency response 200KHZ.
● Suitable for current range 1.0~4.2A 2-phase, 4-phase nema 23 stepper motor, nema34 stepper motor
2.Microstep Resolution Selection
Pulse/Rev |
SW5 |
SW6 |
SW7 |
SW8 |
400 |
OFF |
ON |
ON |
ON |
800 |
ON |
OFF |
ON |
ON |
1600 |
OFF |
OFF |
ON |
ON |
3200 |
ON |
ON |
OFF |
ON |
6400 |
OFF |
ON |
OFF |
ON |
12800 |
ON |
OFF |
OFF |
ON |
25600 |
OFF |
OFF |
OFF |
ON |
1000 |
ON |
ON |
ON |
OFF |
2000 |
OFF |
ON |
ON |
OFF |
4000 |
ON |
OFF |
ON |
OFF |
5000 |
OFF |
OFF |
ON |
OFF |
8000 |
ON |
ON |
OFF |
OFF |
10000 |
OFF |
ON |
OFF |
OFF |
20000 |
ON |
OFF |
OFF |
OFF |
25000 |
OFF |
OFF |
OFF |
OFF |
Default: The pulse can be customized according to customers’ requirements.
3.Current Setting
Peak |
RMS |
SW1 |
SW2 |
SW3 |
1.00A |
0.71A |
ON |
ON |
ON |
1.46A |
1.04A |
OFF |
ON |
ON |
1.92A |
1.36A |
ON |
OFF |
ON |
2.37A |
1.69A |
OFF |
OFF |
ON |
2.84A |
2.03A |
ON |
ON |
OFF |
3.32A |
2.36A |
OFF |
ON |
OFF |
3.76A |
2.69A |
ON |
OFF |
OFF |
4.20A |
3.00A |
OFF |
OFF |
OFF |
Users can set the stepper driver half flow function by SW4. "OFF" indicates the quiescent current is set to half of the dynamic current, "ON" indicates the quiescent current and the dynamic current are the same. User can set SW4 to "OFF", in order to reduce motor and driver heating and improve reliability.
4.Interface description
Signal |
Function |
Description |
PWR/ALM |
Indicator Lights |
Power indicator is green. When the stepper driver power on, the green light will always be lit. Fault indicator is red, when there is over-voltage or over-current fault, the red light will always be lit; after the driver fault is cleared, if re-power the red light will be off. |
PUL+/PUL- |
Signal Interfaces |
PUL is the setting pulse input; DIR is the stepper motor direction input; OPTO is the power supply for signal port + 5V; ENA is the motor free input. |
DIR+/DIR- | ||
ENBL+/ENBL- | ||
DC- |
Power Interfaces |
The stepper driver uses DC power supply. Recommended operating voltage is 18VDC-50VDC, and power consumption should be greater than 100W. |
DC+ | ||
A+ |
Motor Interfaces |
A+ and A- are connected to a phase winding of motor; B+ and B are connected to another phase winding of motor. If you need to backward, one of the phase winding can be reversed. |
A- | ||
B+ | ||
B- |
5.Overall Dimensions
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