Charging feedback missing

What does 5697 mean?

The ACS880 drive detected that the feedback signal coming from the charging system is missing. This typically indicates an issue with the pre-charge circuit or its monitoring, which can prevent the drive from powering up correctly.

• Disconnected or damaged feedback wiring from the charging system to the drive's control board.
• Faulty charging contactor auxiliary contact, which provides the feedback signal.
• Issue with the pre-charge circuit components (e.g., resistors, contactor) preventing proper DC bus charging.
• Control board input failure for the charging feedback signal.

Click steps to track your progress.

1. 1

   Check the wiring and connections of the feedback signal coming from the charging system to the drive for breaks or looseness.

2. 2

   Verify the proper operation of the charging contactor and its auxiliary contacts, if used for feedback, by checking continuity and state.

3. 3

   Inspect the pre-charge resistors for damage, open circuits, or signs of overheating.

4. 4

   Measure the DC bus voltage to confirm if charging is actually occurring, despite the reported missing feedback.

5. 5

   If wiring and components appear functional, investigate the drive's control board input for the feedback signal.