Bosch Rexroth EFC 3600 Operating Instructions Manual page 133

DOK-RCON03-EFC-3600***-IT01-EN-P
Rexroth Frequency Converter EFC 3600
Error
Error name Possible reason
code
OL-1
Long time over load
Too large proportion of V/F
curve
Motor power and frequency
converter power do not
match
Overload happens in case of
lower speed
Too large load, too short ac‐
celeration/deceleration time
or cycle
Low mains voltage
Too much torque boost set‐
ting
Bosch Rexroth AG
Solution
Reduce over load time, reduce
load
Adjust V/F proportion and torque
increase settings
Motor power has to match with
frequency converter power
● Reduce the load in case of
lower speed
● Lower the carrier frequency
([b0.21])
● Increase the frequency con‐
verter capacity
● Adjust the load, acceleration/
deceleration time or cycle
● Increase the frequency con‐
verter capacity
Check the input power supply
Decrease the value of [S0.21]
Diagnosis
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