Troubleshooting for idle choppers with current

Diagnostic codes 623, 624, 625

Diagnostic codes 623 – 625 identify if current is present in a chopper when the chopper is in an idle state.

Symptoms

Code Symptoms XPR® models XPR action Code cancels with...
623 Chopper 1 is in an idle state, and the chopper current is more than 10 A. All models None Remote on-off
624 Chopper 2 is in an idle state, and the chopper current is more than 10 A. XPR300®, XPR460®
625 Chopper 3 is in an idle state, and the chopper current is more than 10 A. XPR460

Corrective action

  1. Look for 24 VDC from the power sources (J2 pins 1 – 3).
  2. If you find 24 VDC from the power sources, the chopper is bad.
  3. Replace the chopper if necessary.