Go to Config > I/O Setup.
| Issue | Symptom | Resolution |
| :--- | :--- | :--- |
| Driver Not Loaded | "No motion card found" | Run install_lpt_driver.bat as admin; disable UAC. |
| Garbled English | Mixed Chinese/English text | Reinstall with English locale; copy EN_US.qm file to \Lang folder. |
| Axis moves only one direction | Jog + works, Jog - does nothing | Check DIR signal connection; toggle "Invert Direction" in motor parameters. |
| Spindle won't start with M3 | Relay not clicking | Verify output pin mapping matches breakout board (e.g., Output #1). | control ncstudio v55601 english setup work
Navigate to Config → Motor Parameters. Go to Config > I/O Setup
| Parameter | Formula / Action | Example (Lead screw: 5mm pitch, 1/8 microstep) |
| :--- | :--- | :--- |
| Steps per Unit | (Motor steps/rev * Microsteps) / Lead pitch | (200 * 8) / 5 = 320 steps/mm |
| Start Speed | 10-20% of max speed (avoid stall) | 5 mm/s |
| Max Speed | Machine mechanical limit | 50 mm/s |
| Acceleration | Test by increasing until stall, then reduce 20% | 300 mm/s² | Tool table:
| Issue | Fix | |-------|-----| | No axis movement | Check E-stop is released + Reset button green | | Jogging reverses direction | Reverse axis polarity in System Parameters | | Spindle won't start | Set M3/M4 output pins correctly in I/O Setup | | "No license" error | Run the patch file (if you have a valid backup) |
Do not just double-click the icon yet. Follow this:
Tip: For v5.5.601, the "English" option is often buggy. Save a backup of the ENGLISH.LNG file immediately.