Brake chopper

What does F04 mean?

An immediate switch-off with inhibit due to issues with the brake chopper. This can be caused by excessive regenerative power, an interrupted or short-circuited braking resistor circuit, an improperly high braking resistance, a defective brake chopper, or a ground fault.

• Too much regenerative power
• Braking resistor circuit interrupted
• Short circuit in the braking resistor circuit
• Braking resistance too high
• Brake chopper defective
• Ground fault

Click steps to track your progress.

1. 1

   Extend deceleration ramps to reduce regenerative power

2. 2

   Check the supply cable to the braking resistor for continuity

3. 3

   Rectify any short circuit detected in the braking resistor circuit

4. 4

   Check the technical data of the braking resistor to ensure correct value

5. 5

   Eliminate any ground fault detected