INVT iMars Operation Manual page 63

iMars grid-tied solar inverters
Table 8-1 Fault code
Fault
Message
code
A
A001 Input UV
A002 Bus UV
A003 Grid UV
A004 Grid OV
A005 Grid UF
A006 Grid OF
A007 Clock Fail
A009 Cmd Shut
A011 Grid Loss
E
E001 Input OV
E003 Bus OV
E004 Boost Fail
E005 Grid OC
E006
E007 Riso Low
E008 IGBT drv
E009 Int Comm
E010 ILeek Fail
E011 Relay Fault
E012 Fan Fail
E013 Eeprom
E014 Dc inject
Instruction
Input undervoltage
Bus undervoltage
AC undervoltage
AC overvoltage
AC underfrequency
AC overfrequency
Clock alarm
Manual stutdown
The public grid
disconnects.
Input overvoltage
Bus overvoltage
Voltage-boost fault
AC overcurrent
OTP Overtemperature
Low isolation
impedance
IGBT drive
protection
communication fault
Huge leakage
Relay fault
Memory error
High DC injection
PV1 undervoltage
PV2 undervoltage
DC input
Low voltage of the public grid
High voltage of the public grid
Low frequency of the public grid
High frequency of the public grid
Wrong setting
Stop by the operation panel or upper
PC
Check if inverter AC connection is
well
DC input overvoltage
Internal bus voltage
Voltage-boost fault of the inverter
Internal AC overcurrent
Internal overtemperature
Low isolation impedance of the
external port system
IGBT drive protection of the inverter
Master-slave DSP communication
Internal
disabled
Error of master-slave DSP check bit
Huge leakage current of the system
current or inverter
Internal relay fault
Fan fault Internal fan fault
Internal memory error
High DC injection during AC output
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Troubleshooting
Fault analysis