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 condition. 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.