Signal supervision

What does 80B0 mean?

A fault generated by the signal supervision 1 function, indicating that a monitored signal has violated its defined limits or conditions. This signifies an abnormal condition in a specific process signal that the drive is supervising. Unresolved, it can lead to incorrect operation or safety issues.

• A monitored analog signal (e.g., AI1 or AI2) has exceeded its configured high limit (e.g., P6-10 'Signal Supervision 1 High Limit').
• A monitored analog signal has dropped below its configured low limit (e.g., P6-11 'Signal Supervision 1 Low Limit').
• A digital input (e.g., DI1) configured for supervision has changed state unexpectedly, violating its defined condition (e.g., 'always active').
• The source signal for supervision (P6-09 'Signal Supervision 1 Source') is unstable or noisy, causing intermittent limit violations.
• Incorrect configuration of the supervision parameters (P6-09 to P6-12), leading to normal operating conditions being flagged as a fault.

Click steps to track your progress.

1. 1

   Identify the monitored signal source (e.g., AI1, motor current) configured in parameter P6-09 (Signal Supervision 1 Source).

2. 2

   For analog sources, read the actual value of the monitored signal (e.g., AI1 value) and compare it against the configured high (P6-10) and low (P6-11) limits.

3. 3

   For digital sources, check the status of the associated digital input (e.g., DI1) at its terminal to confirm its state.

4. 4

   Verify the supervision limits (P6-10: High Limit, P6-11: Low Limit) and the fault delay time (P6-12) are appropriate for the application's process.

5. 5

   Inspect the wiring and connections of the source signal (identified in step 1) for any issues that could cause instability or incorrect values.

6. 6

   Temporarily disable the signal supervision function (e.g., set P6-09 to 'No selection') to confirm the fault clears, indicating the issue lies with the monitored signal or supervision parameters.