Home » HSS57C Closed-Loop Stepper Motor Driver (Digital, DSP-Controlled, for NEMA 23/24 Motors)
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HSS57C Closed-Loop Stepper Motor Driver (Digital, DSP-Controlled, for NEMA 23/24 Motors)

In stock
SKU: RM6642
$85.80 AUD

GRMOT HS57C stepper motor driver—especially regarding signal, motor, encoder, and power terminals. This image aligns closely with what you’d find in related GRMOT models like HS1-57 or HSS57.

 HS57C—the following connections apply.

1. Power Input

  • V+/AC → Positive of 24–50 V DC (or 18–36 V AC)

  • V-/AC → Negative of the power supply

2. Motor Outputs

  • A+ / A- → Coil A of the stepper motor

  • B+ / B- → Coil B of the stepper motor

3. Control Signals (5–24 V DC, optically isolated)

  • PU+ / PU- → Step (pulse) signal lines

  • DR+ / DR- → Direction signal lines

  • EN+ / EN- → Enable line—can be used to disable the motor or clear alarms

    Signal behavior:

    • PU rising edge triggers stepping; pulse width should be at least 2.5 µs

    • DR (direction) should be valid for at least 50 µs before a pulse is sent

    • EN high (EN+ to high, EN- to low) puts driver in free (disabled) state—or clears alarms when necessary.

4. Encoder (Closed-Loop Feedback, if used)

  • PA+ / PA-, PB+ / PB- → Encoder channels A and B

  • VCC / GND → Encoder power supply (polarity must be correct.

Summary Table

Interface Driver Terminals Connection Purpose
Power V+/AC, V-/AC 24–50 V DC (or 18–36 V AC) supply
Motor A+, A- ; B+, B- Connect to the corresponding motor coils
Control Signals PU+/PU- ; DR+/DR- ; EN+/EN- Step, Direction, Enable inputs
Encoder (optional) PA+/PA- ; PB+/PB- ; VCC / GND Closed-loop feedback connections

How to Integrate with Your Controller (e.g., Mach3, Arduino, Breakout Board)

  1. Connect Power Supply:

    • Positive to V+/AC

    • Negative to V-/AC

  2. Wire the Motor:

    • Stepper coil A → A+ / A-

    • Stepper coil B → B+ / B-

  3. Hook Up Control Signals:

    • STEP+ → PU+

    • STEP- → PU-

    • DIR+ → DR+

    • DIR- → DR-

    • ENA+ / ENA- → EN+ / EN- (or leave open if not needed)

  4. Encoder (if applicable):

    • Connect encoder lines to PA+/-, PB+/-, and provide power via VCC/GND

  5. Set DIP Switches (SW1–SW8):

    • Configure microstepping, rotate direction, logic modes, and smoothing based on your setup.

Final Notes

This wiring is standard across GRMOT HS-series drivers, where the HS57C shares the same interface and functional design as its close relatives (e.g., HS1-57). Always double-check pin labels physically on your unit before powering up. And when in doubt, refer to the official manual or diagrams for your exact modelStepper Motor Driver Wiring Diagram - Circuit Diagram