Thermal overload of brake coil or brake coil defective / connected incorrectly

What does 89 mean?

The brake coil has experienced thermal overload, is defective, or is connected incorrectly. This can be triggered by a ramp time set too short, an issue identified during brake inspection, or an incorrect combination of the drive (brake coil) and MOVIFIT®-FC frequency inverter. It indicates a problem with the braking system's integrity or control.

• Brake coil overheated due to sustained current.
• Incorrect wiring of the brake coil (e.g., reversed polarity).
• Brake coil resistance outside of specification.
• Mechanical binding of the brake mechanism.

Click steps to track your progress.

1. 1

   Increase the set ramp time in the inverter parameters.

2. 2

   Perform a brake inspection as detailed in the motor operating instructions.

3. 3

   Check the brake coil connection for proper wiring and integrity.

4. 4

   If the fault occurs shortly after the first enable, verify the combination of the drive (brake coil) and MOVIFIT®-FC frequency inverter.

5. 5

   For combinations of "MOVIFIT®-FC" and "motors with one power rating lower," check the setting of DIP switch S10/5.

6. 6

   Reset the fault by switching off the DC 24 V supply voltage.