
Error
code Error name Possible reason
Solution
OL-2
Motor overload
Motor locked
Prevent motor lock
Normal motor runs long time
with large load at low speed
● Increase frequency converter
output frequency ([b1.04] or
potentiometer)
● Reduce load
● Use variable frequency motor
or set zero speed load
([E4.05]) to a higher value
● Set correct thermal motor time
constant ([S2.23])
Low mains voltage
Check the input power supply
Too large proportion of V/F
curve
Adjust V/F proportion and torque
increases
Too large sudden load
change
Check load
Wrong input of motor rated
current
Set correct motor rated current to
[S2.04]
Multiple motors are running
under same frequency con‐
verter
Do not connect more than one
motor to the frequency converter
Over excitation
Reduce [b1.45]
EEP-
Flash read/ write error
Flash memory in a bad condi‐
tion
Try to backup the data from the
operating panel, and then replace
the frequency converter
SPI-
SPI communication
problem
EMC problem on the main
board
Check the wiring of control circuit,
main circuit and ground to find out
the source of interference
Internal error on I/O board
Remove the EMC problem, if it
happens again, replace the fre‐
quency converter
Bosch Rexroth AG
Diagnosis
DOK-RCON03-EFC-3600***-IT01-EN-P
Rexroth Frequency Converter EFC 3600
132/235
Содержание Rexroth EFC 3600
Страница 6: ...Bosch Rexroth AG DOK RCON03 EFC 3600 IT01 EN P Rexroth Frequency Converter EFC 3600 IV 235 ...
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Страница 237: ...Notes DOK RCON03 EFC 3600 IT01 EN P Rexroth Frequency Converter EFC 3600 Bosch Rexroth AG ...
Страница 238: ...ООО Комфорт Компани 03038 г Киев Украина ул Н Гринченко 4 тел 38 044 362 3676 info comfort co com comfort co com ...