Quick start
Start with the motor or other powered load disconnected. Check the labels on your board and the signal requirements of the connected device. Connector names below follow the V1.0 schematic.
| Connection | Wiring and purpose |
|---|---|
| J2 | Pin 1 is GND, pin 2 is the 5 V board supply, and pin 3 is PWM out. Share ground with the connected device. |
| S1 interlock | P1 is GND and P2 is the switch input. Normally open by default. Closing it sends the stop signal. |
| Reverse switch | P3 is GND and P4 is the switch input. In 50 Hz bidirectional mode, open requests forward and closed requests reverse. |
| S2 | Set with power off. Bridging S2 forces one-direction operation in 50 Hz mode. |
| Throttle | Use the onboard knob or connect a compatible Hall signal to PA7. Disconnect the knob wiper when using a Hall sensor and share ground with the board. |
- Return the throttle to zero before powering the board. The default is 50 Hz bidirectional output with a normally open S1. The board can run with S1 unconnected in this setting.
- With zero output, hold K1 to open the menu. Check the output protocol, throttle source, and S1 type. Restart if the display shows
88. - Verify the stop waveform against the target device before connecting the load. Start at low throttle and verify speed control, the stop signal, and recovery after releasing the interlock.
Enable delay and interlock
The enable delay starts once the throttle has settled at zero. The default delay is 0 seconds. If the throttle leaves zero during the delay, the countdown cancels and starts over when the throttle returns to zero. After S1 permits operation again, the throttle must return to zero and complete the delay before output can resume.
| S1 setting | Open or unconnected | Closed |
|---|---|---|
| Normally open (NO), default | Operation permitted | Stop signal |
| Normally closed (NC) | Stop signal | Operation permitted |
Reverse and status LED
In 50 Hz bidirectional mode, a change of direction first brings output to neutral. The new direction takes effect after the throttle returns to zero and output holds at neutral. The LED stays on in reverse and flashes while the menu is open.
In 50 Hz mode, S2 takes priority over the temporary K1 override, which takes priority over the saved menu setting. With S2 open, hold K1 while powering on to temporarily invert the saved direction mode for that power cycle.