Cause : Ground Fault comes when a current path to earth ground has been detected at one or more of the drive output terminals.

In Allen-Bradley drives, Fault Code 13 indicates a Ground Fault. This means there's a current leakage path detected between the drive's output and ground.

Here's what you need to know about Fault 13:

Cause:

The leakage current can originate from various sources:

• Damaged motor windings.
• Faulty wiring insulation.
• Issues within the drive itself (less common).

Troubleshooting Steps:

1. Safety First: Ensure the system is completely powered down and locked out before troubleshooting.
2. Check Wiring: Inspect the wiring between the drive and the motor for any damage or loose connections.
3. Motor Test: If possible, disconnect the motor and see if the fault persists. This helps isolate a motor issue. Consider performing an insulation resistance (IR) test on the motor windings to check for internal damage.
4. Drive Operation Mode: In some cases, the fault might be triggered by specific operating modes. Try running the drive in a simpler mode like V/Hz and see if the fault occurs.
5. Drive Parameters: Double-check that the drive parameters are set correctly for your motor and application. Refer to the Allen-Bradley user manual for your specific drive model for parameter details.