Old Hand Fault Finder

Allen-Bradley PowerFlex 525 F013: Ground Fault

Cites the manual · line-by-line check pending

What it means Current is leaking from an output phase to ground.

Likely causes

  • Damaged motor insulation
  • Wet conduit
  • Nicked cable

Checks, in order

  1. Megger motor and leads separately
  2. Inspect junction box for water

Old Hand tip

Wet junction boxes after washdown are a common cause.

Source

Source (reworded, not copied): Rockwell Automation, PowerFlex 520-Series AC Drives User Manual, publication 520-UM001O-EN-E (September 2025), Chapter 4 Troubleshooting. Official manual (PDF). Fault numbers and names can differ between firmware versions.