
Error
code Error name Possible reason
Solution
SC
Short circuit
Internal fault of IGBT
Replace the frequency converter
External short circuit of motor
phase-phase
Check the motor
Earth surge
Remove the short circuit and
check the motor
IPHL
Input phase loss (for 3 phase
frequency converter)
Abnormal, omitted or broken
connection of frequency con‐
verter power supply
Follow operating procedures to
check power supply connections,
remove omitted or broken con‐
nection
Broken fuse
Check fuse
Imbalance in the three pha‐
ses of input power supply
Check if the imbalance situation
exceeds requirements
Main circuit capacitor deterio‐
ration
Replace the frequency converter
OPHL
Output
phase loss
Abnormal, omitted or broken
connection of frequency con‐
verter outputs
Check the connections of fre‐
quency converter outputs, remove
omitted or broken connections
Imbalance in the three pha‐
ses of outputs
Check the motor
OH
Frequency converter over temperature
Frequency converter (heat
sink) temperature is higher
than max allowable tempera‐
ture 85°C
● Reduce ambient temperature,
improve ventilation and heat
dissipation; clear dust, cotton
wadding in air ducts; check fan
and its power supply connec‐
tion (if available)
● Reduce the load if it is too
heavy
● Reduce the carrier frequency
[b0.21]
Temperature detection circuit
fault
Replace the frequency converter
Bosch Rexroth AG
Diagnosis
DOK-RCON03-EFC-3600***-IT01-EN-P
Rexroth Frequency Converter EFC 3600
134/235
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 ...