RBU100H operation manual
7 Fault tracking
-23-
Fault
code
Fault type
Possible cause
What to do
OH2
IGBT
overheat
1.
Air duct jam or fan
damage
2.
Ambient temperature
is too high.
1. Refer to the overcurrent
solution
2. Redistribute
dredge the wind channel or
change the fan
3. Low the ambient temperature
4. Check and reconnect
5. Ask for help
EF
External
fault
S3 external fault input
terminals action
1. Check the external device
input
2.
Ask for help
ItE
Current
detection
fault
The connection of the
control board is not good
1. Check the connector and
reconnect
2. Ask for help
EEP
EEPROM
fault
1.
Error of controlling
the write and read of
the parameters
2.
EEPROM damage
1. Press STOP/RST
2. Ask for help
CP
Control
power fault
Auxiliary power supply
damage
1. Ask for help
PEr
Parameters
error
Apply non-isolation circuit for the RBU. Disconnect (+) and (-) and ensure
there is no voltage present before operation.
Summary of Contents for RBU100H
Page 1: ...RBU100H Regenerative Energy Unit...
Page 33: ...66001 00144...