Bosch Rexroth EFC 3600 - Diagnosis on Errors

9.5 Diagnosis on Errors
9.5.1 Error Description and Solution
When EFC 3600 detects a status or situation that affects or prevents correct operation,
an error message will be generated, as shown below:
Error
code
Error name Possible reason Solution
OC-1
Over current at constant
speed
Sudden change in run mode
Reduce occurrence and scale of
sudden change
Low mains voltage Check the input power supply
Motor power and frequency
converter power do not
match
Motor power has to match with
frequency converter power
Too large inertia or load
Check motor power, converter
power, load
The motor cable is too long
● Decrease the carrier frequency
● Select a larger frequency con‐
verter
Excessive torque compensa‐
tion
● Check the amount of voltage
boost
● Reduce the amount of voltage
boost until the current be‐
comes less
Bosch Rexroth AG
Diagnosis
DOK-RCON03-EFC-3600***-IT01-EN-P
Rexroth Frequency Converter EFC 3600
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