ABB · ACS580
This programmable fault is triggered by the signal supervision function 4, indicating that a monitored signal (defined in parameter 32.37) has violated its configured supervision criteria (defined in parameter 32.36). This helps in detecting abnormal conditions of critical internal or external signals, preventing unintended operation or damage.
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1. Identify the signal source configured in P32.37 (Signal Source 4) and monitor its actual value (e.g., using P01.XX monitoring parameters or an external meter).
2. Verify the supervision limits set in P32.38 (Signal 4 Min Limit) and P32.39 (Signal 4 Max Limit) are appropriate for the application's normal operating range.
3. Check the status and calibration of the external sensor or device providing the signal to P32.37.
4. Adjust supervision delay time P32.40 (Signal 4 Delay) if transient signal fluctuations are causing nuisance trips.
5. Inspect wiring integrity for the signal linked to P32.37 for loose connections, damage, or proper shielding.