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Chapter
Before seeking service, users should first inspect the unit and record fault details
according to information in this section. If service is required, please contact Saelig.
Fault
code
Err-01
U-phase IGBT1 over current fault
Err-02
U-phase IGBT2 over current fault
Err-03
U-phase IGBT3 over current fault
Err-04
U-phase IGBT4 over current fault
Err-05
V-phase IGBT1 over current fault
Err-06
V-phase IGBT2 over current fault
Err-07
V-phase IGBT3 over current fault
Err-08
V-phase IGBT4 over current fault
Err-09
W-phase IGBT1 over current fault
Err-10
W-phase IGBT2 over current fault
Err-11
W-phase IGBT3 over current fault
Err-12
W-phase IGBT4 over current fault
Err-13
Radiator over-temperature
Err-14
Transformer over-temperature
Err-15
Emergency stop button
Err-16
Fuse 1 is broken
Err-17
Fuse 2 is broken
Err-18
Fuse 3 is broken
Err-19
IGBT over-temperature 1
Err-20
IGBT over-temperature 2
Err-21
Input under voltage fault
Err-22
Input over voltage fault
Err-23
DC voltage is too low
Err-24
DC voltage is too high
Err-25
Err-26
Err-27
W overload
Err-28
Output under voltage fault
Err-29
Output over voltage fault
7 Troubleshooting
Fault type
U overload
V overload
Table 7-1 Alarm contents and solutions
and
Possible causes of faults
U-phase IGBT is damaged
U-phase IGBT is damaged
U-phase IGBT is damaged
U-phase IGBT is damaged
V-phase IGBT is damaged
V-phase IGBT is damaged
V-phase IGBT is damaged
V-phase IGBT is damaged
W-phase IGBT is damaged
W-phase IGBT is damaged
W-phase IGBT is damaged
W-phase IGBT is damaged
The fan works abnormally
The fan works abnormally
The emergency stop button
is presses
The fuse blows out
The fuse blows out
The fuse blows out
The fan works abnormally
The fan works abnormally
The input voltage is too low
The output voltage is too high
The input voltage is too low
The output voltage is too high
U-phase overload
V-phase overload
W-phase overload
The output voltage is too low
The output voltage is too high
37
Solutions
Solutions
Check and replace IGBT
Check and replace IGBT
Check and replace IGBT
Check and replace IGBT
Check and replace IGBT
Check and replace IGBT
Check and replace IGBT
Check and replace IGBT
Check and replace IGBT
Check and replace IGBT
Check and replace IGBT
Check and replace IGBT
Check the fan
Check the fan
Check the emergency stop
button
Check and replace the fuse
Check and replace the fuse
Check and replace the fuse
Check the fan
Check the fan
Check the input voltage
Check the input voltage
Check the input voltage
Check the input voltage
Check the load
Check the load
Check the load
Check the output voltage
Check the output voltage
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