Cause : HW OverCurrent comes when the drive output current has exceeded the hardware current limit. "HW OverCurrent" typically refers to a hardware overcurrent fault in drive.

An Allen-Bradley fault code 12 indicates a Hardware Overcurrent fault on your drive. This means the drive's output current has exceeded its safe limit.

Here's a breakdown of the fault and some troubleshooting steps:

Cause:

• The most common reason is a wiring or motor fault causing a surge in current.
• Other possibilities include excess load on the motor, incorrect motor selection for the application, or drive configuration issues.

Troubleshooting Steps:

1. Safety First: Before starting any troubleshooting, ensure the system is powered down and locked out.
2. Check the Load: If possible, disconnect the motor and see if the fault persists. This helps isolate a motor or mechanical issue.
3. Inspect Wiring: Look for any damage or loose connections in the wiring between the drive and the motor.
4. Motor Tests: Consider performing an insulation resistance (IR) test on the motor windings to check for internal damage.
5. Drive Parameters: Verify that the drive parameters are set correctly for your specific motor and application. Refer to the Allen-Bradley manual for your drive model for proper configuration.
6. Consult the Manual: The Allen-Bradley user manuals for your specific drive model will have detailed information on fault code 12 and troubleshooting steps.