SELF TEST OVER TIME

What does SV0488 mean?

The MCC off Test was not completed within the time specified by parameter No. 1946. This indicates a potential issue with the MCC (Motor Contactor) contact operation, its wiring, or an inappropriately set test time.

• Internal self-test routine of the control system took longer than the defined time limit.
• CPU overload or slow response impacting internal diagnostics.
• Memory access issues during self-test.
• Complex operation slowing down system initialization.

Click steps to track your progress.

1. 1

   Inspect the MCC (Motor Contactor) contact for proper operation, mechanical integrity, and wear.

2. 2

   Verify the value of parameter No. 1946, which defines the maximum allowable time for the MCC off Test, and adjust if necessary.