Troubleshooting for current sensor faults
Diagnostic code 631
Diagnostic code 631 can occur because of potential problems with the current sensor. Do a check of the specified connections. In some conditions it can be necessary to replace the Input/Output (I/O) Printed Circuit Board (PCB) (PCB 5).
Symptoms
| Code | Symptoms | XPR® models | XPR action | Code cancels with... |
|---|---|---|---|---|
| 631 | The current in the work cable is more than 5 A while the plasma cutting system is in the Wait for Start state. | All models | Shut down | Remote on-off |
Corrective action
- Remove the power from the cutting system.
- Examine J1.8 on PCB 1 (the control PCB in the plasma power supply) and the work cable sensor on the I/O panel on PCB 5 (the I/O PCB in the plasma power supply) for damage and loose connections.
- If the connections are good and the code continues, replace the I/O PCB.
- If you cannot find or correct the problem, speak to your cutting machine supplier or regional Hypertherm® Technical Service team.