REXROTH EFC 3610 Series - Error 7 (OE-4): Overvoltage During Stop; Error 8 (UE-1): Undervoltage During Run; Error 9 (SC): Surge Current or Short Circuit; Error 10 (IPH.L): Input Phase Loss

13.4.7 Error 7 (OE-4): Overvoltage during Stop
Possible reason Solution
Excessive inertia on the load
● Increase deceleration time (E0.27)
● Use suitable brake components
Surge voltage from the power supply Check input power supply
13.4.8 Error 8 (UE-1): Undervoltage during Run
Possible reason Solution
Power failure during running Check input power supply
Main circuit capacitor deterioration Contact with service
13.4.9 Error 9 (SC): Surge Current or Short Circuit
Possible reason Solution
External phase-phase short circuit of motor Check motor wiring
Earth surge Remove the short circuit and check motor
Internal error of power module Contact with service
Surge current
Increase the acceleration time (E0.26), reduce
the overexcitation braking factor (E0.55)
13.4.10 Error 10 (IPH.L): Input Phase Loss
Possible reason Solution
Abnormal, omitted or broken connections
of frequency converter power supply
Check power supply connections, remove omitted
or broken connections
Broken fuse Check fuse
Imbalance in the three phases of input
power supply
Check if the imbalance situation exceeds convert-
er withstand capability
Main circuit capacitor deterioration Contact with service
13.4.11 Error 11 (OPH.L): Output Phase Loss
Possible reason Solution
Abnormal, omitted or broken connections
of frequency converter outputs
Check the connections of frequency converter out-
puts, remove omitted or broken connections
Imbalance in the three phases of outputs Check motor
Bosch Rexroth AG
Diagnosis
EFC x610 Series
244/389
DOK-RCON03-EFC-X610***-IT05-EN-P