Troubleshooting for an inrush contactor fault
Diagnostic code 765
Diagnostic code 765 occurs when the current at the inrush contactor is too high.
Symptoms
Code Symptoms XPR models XPR action Code cancels with...
765 The inrush contactor driver finds an overcurrent con-
dition.
XPR300,
XPR460
None • Set process
• Remove on-off
Corrective action
1. Examine the inrush contactor, the inrush contactor relay, and the wiring.
2. Replace components that have damage or excess wear.
3. Make sure that you have the most recent XPR firmware.
You can log in into the Xnet at www.hypertherm.com to download it.
4. If you cannot find or correct the problem, speak to your cutting machine supplier or regional
Hypertherm Technical Service team.
Troubleshooting for a pump-enable fault or remote-relay fault
Diagnostic codes 766, 767
Diagnostic codes 766 and 767 occur when there is a fault that is related to the pump solid-state relay.
Symptoms
Code Symptoms XPR models XPR action Code cancels with...
766 The pump-enable driver finds an overcurrent condi-
tion.
767 The remote on-off relay driver finds an overcurrent
condition.
All models None • Set process
• Remote on-off
Diagnostics and Troubleshooting
8
375811530Instruction ManualXPR460
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