Internal fault (General)

What does 38 mean?

A general internal fault has been detected within the frequency converter, preventing normal operation. A specific sub-code, referenced in Table 7.6, provides more detailed diagnostic information about the nature of the internal issue. This fault indicates a critical hardware or software problem requiring specific troubleshooting based on the sub-code.

Complete Troubleshooting Guide

1. 1

   Cycle power to the frequency converter, waiting a few minutes before restarting.

2. 2

   Thoroughly inspect all installed option cards to ensure they are properly seated and undamaged.

3. 3

   Check for any loose or missing internal wiring connections within the drive.

4. 4

   Note the specific internal code number displayed (e.g., 38.256) and refer to the detailed fault descriptions for that sub-code, or provide it to technical support.