INVT XG50KTR

Three-phase Grid-tied Solar Inverter Troubleshooting
29
7 Troubleshooting
This chapter introduces fault alarms and codes, which are used to quickly find inverter faults.
Table 7-1 Inverter fault codes
Number
Fault types
Fault main
code
Fault
subcode
Fault information
Display
information
1
PV voltage fault
01
01
PV electricity down
01-01
02
PV voltage high
01-02
2
BUS voltage
error
03
01
Low voltage BUS
03-01
02
BUS voltage high
03-02
03
BUS voltage imbalance
03-03
3
Flow failures
05
01
Inverter hardware flow
05-01
02
Inverter software flow
05-02
03
The BOOST hardware
flow
05-03
04
The BOOST software
flow
05-04
4
Thermal failure
06
01
The inverter temperature
thermal
06-01
02
The BOOST thermal
06-02
03
The radiator thermal
06-03
04
The environmental
thermal
06-04
5
Insulation
detection fault
07
01
Insulation detection fault
07-01
6
Drive failure
08
01
Drive failure
08-01
7
Communication
failure
09
01
DSP1 and ARM SCI
failure
09-01
02
DSP2 with ARM SCI
failure
09-02
03
DSP1 SPI fault
09-03
04
DSP2 SPI fault
09-04
05
SCI failure DSP1 and
MCU
09-05
8
Leakage current
fault
10
01
The static leakage
current is high
10-01