To troubleshoot a ground fault, first check the panel display to determine if the fault is internal or on the field wiring. A GROUND FAULT LOOP x message indicates the fault is on a specific SLC loop, whereas a general GROUND FAULT indicates the issue is within the panel (Page 74) [1].
Check Mounting: Ensure all mounting holes are secured with screws or standoffs, as these are required for Earth Ground continuity (Page 4) [1].
Identify the Loop: Note whether the panel reports Loop 1 or Loop 2 (Page 74) [1].
Locate and Repair: Physically inspect the SLC field wiring for the reported loop to find and repair the ground connection (Page 74) [1].
