E.BE
Brake transistor err
Mitsubishi Electric · Mitsubishi FR-E800 Variable Frequency Drive
What does E.BE mean?
The inverter output is shut off due to a fault in the brake circuit, typically indicating damage to the brake transistor. This is a critical internal hardware fault requiring immediate attention to prevent further damage.
Common Causes
- Brake transistor failure.
- The electronic brake is not functioning correctly.
- Overheating of the brake transistor.
- Internal fault in the brake control circuit.
- Short circuit within the brake system.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Reduce the load inertia to minimize demands on the regenerative braking circuit.
- 2
Check that the brake duty cycle is proper for the application, ensuring it does not exceed the inverter's capabilities.
- 3
Replace the entire inverter as this fault often signifies irreparable internal damage.
Verified technical data. Last updated: March 2026
Related Faults
Source: Mitsubishi FR-E800 Variable Frequency Drive