Fault 4 Brake chopper

Subfault: 4.1

Description: Overcurrent in brake chopper

 

Response: Output stage inhibit

Cause

Measure

Excessive regenerative power.

Decrease deceleration.

Short circuit in braking resistor circuit.

Check the line to the braking resistor.

The braking resistor impedance is too low.

Check the minimum permitted resistance value of the braking resistor and connect a suitable braking resistor.

Subfault: 4.2

Description: Brake chopper defective

 

Response: Output stage inhibit

Cause

Measure

Brake chopper defective.

Contact SEW‑EURODRIVE Service.