89
Thermal overload of brake coil or brake coil defective/incorrectly connected
SEW Eurodrive · MOVIMOT MM..D With AC Motor DRS
What does 89 mean?
The brake coil has experienced a thermal overload, is defective, or is connected improperly. This can lead to braking issues, potential drive damage, and requires inspection of the brake system.
Common Causes
- Ramp time set too short, causing frequent or prolonged brake engagement and overheating
- Defective brake coil
- Incorrect brake coil connection
- Mismatched drive (brake coil) and MOVIMOT® frequency inverter combination signaled shortly after first enable
- Incorrect setting of DIP switch S1/6 for combinations of MOVIMOT® and motor with a lower power rating
Repair Steps & Checklist
Click steps to track your progress.
- 1
Increase the set ramp time
- 2
Perform brake inspection (refer to 'Inspection and maintenance of the brake' section in the manual)
- 3
Check the brake coil connection and correct if necessary
- 4
Check the combination of the drive (brake coil) and MOVIMOT® frequency inverter for compatibility
- 5
Check the setting of DIP switch S1/6 for combinations of MOVIMOT® and motor with one lower power rating
- 6
Reset the error by switching off the DC 24 V supply voltage
Verified technical data. Last updated: March 2026
Related Faults
Source: SEW Eurodrive MOVIMOT MM..D With AC Motor DRS