Parameter set mode is absolute instead of relative.

What does 157 mean?

An absolute parameter set (C1311) was performed or is active during relative positioning (position mode C1210). This mismatch in positioning modes prevents correct operation.

• The positioning mode parameter (e.g., C1210) is configured for relative positioning, but a motion command or parameter set (e.g., C1311) expecting an absolute position reference was issued.
• A program sequence in the master controller or internal drive logic incorrectly switches between absolute and relative motion commands without updating the drive's active mode.
• Incorrect parameter value downloaded for the positioning mode (C1210) not matching the application's intended operation.
• Communication error or corrupted data causing the drive to misinterpret the intended motion mode from the master controller.

Click steps to track your progress.

1. 1

   1. Verify the current positioning mode (Parameter C1210) and ensure it matches the application's requirements (0 = relative, 1 = absolute).

2. 2

   2. Review the motion control program (PLC or master controller) for any instances where an absolute parameter set (e.g., C1311) is called while the drive is configured for relative mode.

3. 3

   3. Adjust the positioning mode parameter (C1210) to match the type of positioning commands being sent, or modify the motion program accordingly.

4. 4

   4. Perform a drive parameter backup and restore, or re-download the correct parameter set to ensure C1210 is accurately applied.

5. 5

   5. Monitor the drive's status words (e.g., P5-06 for mode bits) to confirm the drive's active positioning mode prior to the fault.