Braking Error

What does E36 mean?

This fault occurs during brake control operation if the inverter fails to receive the braking confirmation signal within the specified time (b124) after a brake release, or if the output current doesn't reach the brake release current (b126) during the brake wait time (b121). It indicates a problem with the brake's operation or its feedback to the inverter.

• Mechanical brake malfunction (e.g., seized brake pads, worn components) preventing proper release or engagement.
• Brake feedback switch (e.g., microswitch, proximity sensor) not activating or faulty, failing to provide the 'brake open' signal.
• Incorrect timing parameter for brake release/engagement (e.g., b124 Brake confirm time) set too short for the brake's response.
• Wiring fault between the inverter's brake control output, the brake, and the brake feedback input.
• External brake contactor or relay failure preventing proper power application to the brake.

Click steps to track your progress.

1. 1

   1. Verify the mechanical operation of the brake; manually cycle the brake (if safe) to observe its release and engagement.

2. 2

   2. Measure the voltage (VDC/VAC) supplied to the brake coil/solenoid from the inverter's brake output terminals (e.g., T1, T2) to confirm activation.

3. 3

   3. Check the state of the brake feedback input terminals (e.g., X1, X2) using a multimeter (continuity or voltage) to confirm the brake 'open' signal is received by the inverter.

4. 4

   4. Review and adjust parameter b124 (Brake confirmation time) to allow sufficient time for brake release before motor current rise.

5. 5

   5. Inspect all wiring related to the brake circuit for damage, loose connections, or incorrect termination at both the inverter and the brake assembly.