INVT iMars Operation Manual page 58

iMars grid-tied solar inverters
Table 8-1 Fault code
Fault code Message
A
A001 Input UV
A002
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
Input undervoltage
Bus UV
AC underfrequency
The public grid disconnects.
Voltage-boost fault
OTP
Low isolation impedance
IGBT drive protection
Internal communication
Huge leakage current
Instruction
Bus undervoltage
AC undervoltage
AC overvoltage
AC overfrequency
Clock alarm
Manual stutdown
Input overvoltage
Bus overvoltage
AC overcurrent
Over temperature
fault
Relay fault
Fan fault
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Troubleshooting
Fault analysis
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 over temperature
Low isolation impedance of
the external port system
IGBT drive protection of the
inverter
Master-slave DSP
communication disabled
Error of master-slave DSP
check bit
Huge leakage current of the
system or inverter
Internal relay fault
Internal fan fault