INVT iMars BG25KTR

iMars grid-tied solar inverters Troubleshooting
60
Table 8-1 Fault code
Fault
code
Message
Instruction Fault analysis
A
A001
Input UV
Input undervoltage
PV1 undervoltage
PV2 undervoltage
A002
Bus UV
Bus undervoltage
DC input
A003
Grid UV
AC undervoltage
Low voltage of the public grid
A004
Grid OV AC overvoltage
H
igh voltage of the public grid
A005
Grid UF
AC underfrequency
L
ow frequency of the public grid
A006
Grid OF
AC overfrequency
H
igh frequency of the public grid
A007
Clock Fail
Clock alarm
W
rong setting
A009
Cmd Shut
Manual st
utdown
Stop by the operation panel or upper
PC
A0
11
Grid Loss
The public grid
disconnects.
Check if inverter AC connection is
well
E
E001
Input OV
Input overvoltage
DC input overvoltage
E003
Bus OV Bus
overvoltage
Internal bus voltage
E004
Boost Fail
Voltage-
boost fault
Volt
age-boost fault of the inverter
E005
Grid OC
AC overcurrent
Internal AC overcurrent
E006
OTP O
vertemperature
Internal overtemperature
E007
Riso Low
Low isolation
impedance
Low isolation impedance of the
external port system
E008
IGBT drv
IGBT drive
protection
IGBT
drive protection of the inverter
E009
Int Comm
Internal
communication fault
Master-slave DSP communication
disabled
Error of master-slave DSP check bit
E010
ILeek Fail
Huge leakage
current
Huge leakage current of the system
or inverter
E011
Relay Fault
Relay fault
Internal relay fault
E012
Fan Fail Fan fault
Internal fan fault
E013
Eeprom Memory error
Internal memory error
E014
Dc inject H
igh DC injection
High DC injection during AC output