
Possible reason
Solution
Excessive overexcitation braking factor Reduce [E0.55]
Wrong motor parameter setting
Correct motor parameters setting
13.4.4 Error 4 (OE-1): Overvoltage at Constant Speed
Possible reason
Solution
Surge voltage from power supply
Check input power supply
Motor to earth short circuit causes
DC-bus capacitors overcharged
Check motor connection
Excessive load rotation inertia
Use suitable brake components
Noise interference
Check wiring of control circuit, main circuit and grounding
13.4.5 Error 5 (OE-2): Overvoltage during Acceleration
Possible reason
Solution
Surge voltage from power supply
Check input power supply
Motor to earth short circuit causes
DC-bus capacitors overcharged
Check motor connection
Direct start during motor running
Restart after motor stop or start with speed capture (E0.35)
Excessively short acceleration time
Increase acceleration time (E0.26) or use S-curve (E0.25,
E0.28, E0.29)
13.4.6 Error 6 (OE-3): Overvoltage during Deceleration
Possible reason
Solution
Surge voltage from power supply
Check input power supply
Motor to earth short circuit causes
DC-bus capacitors overcharged
Check motor connection
Excessive load rotation inertia
Use suitable brake components
Excessively short deceleration time
● Increase deceleration time (E0.27)
● Use a brake resistor or a brake resistor unit
● Enable stall overvoltage prevention during deceleration
(C0.25)
Wrong wiring of brake resistor
Check the wiring of brake resistor
The brake chopper is damaged
Contact with service
VFC 3210
Bosch Rexroth AG
Diagnosis
DOK-RCON04-VFC3210****-IT01-EN-P
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