Package include:

• 1 x DMA860H Stepper Motor Driver
• The Pdf. user manual is available for download in the Safety and product resources section of this page.

Summarize

• Can drive 4, 6 and 8-wire two-phase stepping motor
• For Nema23 Nema34 Nema42 Stepper Motor
• Voltage input: 18-80VAC
• Maximum current: 7.2A,resolution: 0.1A
• Microstep: 400-51200
• Signal input: differential/single end,pulse/direction or double pulse
• Pulse response frequency: 200KHz

Subdivision setting

• DMA860H The driver adopts differential interface circuit applicable to differential signal, single-terminal common negative and common positive interfaces, built-in high-speed optocoupler, allowing the reception of long line driver, collector open circuit and PNP output circuit signals. Now take open collector circuit and PNP output as examples, the interface circuit diagram is as above pic.

• Signal input: differential / single-ended, pulse / direction or double pulse
• DMA860H The driver adopts differential interface circuit applicable to differential signal, single-terminal common negative and common positive interfaces, built-in high-speed optocoupler, allowing the reception of long line driver, collector open circuit and PNP output circuit signals. In harsh environments, we recommend the use of long - line driver circuit, strong anti - interference ability.
• Pulse control signal: the pulse rising edge is effective; PUL- 4 ~ 5V at high voltage and 0 ~ 0.5v at low voltage. To reliably respond to pulse signals, the pulse width should be greater than 1.2 microns. Series resistance is required if +12V or +24V is used.
• Direction signal: high/low level signal. To ensure reliable commutation, the direction signal should be established at least five microns before the pulse signal. The initial running direction of the motor is related to the wiring of the motor. Interchanging any phase windings (such as A+, A- switching) can change the initial running direction of the motor, DIR- 4 ~ 5V at high voltage and 0 ~ 0.5v at low voltage.
• Enable signal: this input signal is used to enable or disable. When ENA+ is connected to +5V and ENA- is connected to low level (or internal optocoupler conduction), the driver will cut off the current of each phase of the motor to make the motor in a free state.

Note:

1. When VCC=5V is connected in the figure, no series resistance is required at the signal end;

When VCC=12V, the signal end needs resistance of about 1K in series,R=1K/ 0.25w;

When VCC=24V, the signal end needs resistance of about 2K in series, R=2K/ 0.25w.

2. Drive internal 270 Ω resistor

Size specification