Diagnostics and Troubleshooting
XPR170 Instruction Manual 810060 321
Current sensor diagnostic codes (631)
1. Remove the power from the cutting system. Refer to Remove the power from the cutting system
on page 238.
2. Examine J1.8 on PCB 1 (control PCB) and the work lead sensor located on the I/O panel on
PCB5 (I/O PCB).
3. Look for:
Damage
Loose connections
4. If the connections are good and the code continues, replace PCB5 (I/O PCB).
5. If you cannot find or resolve the problem with these corrective actions, contact your cutting
machine supplier or regional Hypertherm Technical Service team.
WARNING
ELECTRIC SHOCK CAN KILL
Disconnect electrical power before doing troubleshooting or diagnostic work.
All work requiring removal of the plasma power supply outer cover or panels
must be done by a qualified technician.
See the Safety and Compliance Manual (80669C) for more safety
information.
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