System Alarm: Feedback Mismatch, Semi-Closed Loop Error, or Current Offset Error

Was bedeutet Alarm 5 ?

This alarm can indicate multiple issues depending on the set bits. If the OFS bit is set, it is a Feedback Mismatch alarm, suggesting opposite move directions for the position and velocity detectors. Other bits include MCC for Excessive Semi-Closed Loop Error and LDM for Current Offset Error.

• Discrepancy between commanded position and actual feedback position.
• Error detected in a semi-closed loop configuration.
• The current offset of the motor is outside acceptable limits.
• Feedback signal from the encoder or sensor is unreliable.

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1. 1

   If the OFS bit is set (Feedback mismatch alarm), check the rotation direction of the separate detector.

2. 2

   If the separate detector's direction is opposite to the motor's rotation: For a Phase A/B detector, reverse the A and __A connections.

3. 3

   If the separate detector's direction is opposite to the motor's rotation: For a Serial detector, reverse the signal direction setting for the separate detector.

4. 4

   For Series 90B0/07 and subsequent editions, verify the setting that allows the signal direction to be reversed even for the phase A/B detector.