Goldcut Jk Series Driver (Genuine)

| Symptom | Likely Cause | JK Series Fix | | :--- | :--- | :--- | | Motor vibrates but doesn't turn | Low current or phase mismatch | Run Auto-Config cycle; check wiring A+/A- vs B+/B- | | Lost steps at high speed | Voltage too low | Increase supply voltage (Max 110V) | | Driver overheats | Current set too high for motor | Reduce peak current via DIP switches | | Motor hums when idle | High idle current | Enable "Reduced Current" mode (Half/Quarter current after 0.5s) |

Diagnosis: Power supply voltage is dropping below 18V due to insufficient amperage. Fix: Upgrade to a power supply rated for at least 2x the total current of all drivers. (e.g., Two JK drivers at 4A each = 8A total → Use 16A supply). goldcut jk series driver

Diagnosis: Electrical noise on the DIR line. Fix: Install a 10k ohm pull-up resistor on the DIR+ line, or switch the controller to differential signaling. | Symptom | Likely Cause | JK Series

To get the most out of the Goldcut JK Series, follow these three rules: Diagnosis: Electrical noise on the DIR line