socomec SUNSYS - B10, Installation And Operation Manual

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46
Fault
Message
Fault definition Possible Causes
Proposed Actions for
End-user
Proposed Actions for
Professionals
Consistent
Fault
The readings of 2
microprocessors
are inconsistent
1. Software problem
2. Circuits inside
Inverter are
abnormal
3. Inverter is
abnormal
1. Open all DC connections of
Inverter
2. Wait for 3 minutes
3. Reconnect DC connection
and check
4. If the fault continues, call
your local service
1. Open all DC connections
of Inverter
2. Wait for 3 minutes
3. Reconnect DC connection
and check
4. If the fault continues

Update the firmware
according to
instructions, or

Replace the Inverter
Inve
rt
e
r
Fa
il
ure
Over
Temperatur
e
The detected
temperature is high
1. Ambient
temperature is too
high
2. Heat dissipation
problem might be
occurred
3. Inverter is
abnormal
1. Make sure the ambient
temperature of installation
is less than 55 C
2. Check the space near the
heat sink
3. Remove any obstacle that
block the heat dissipation
near heat sink
4. Call local service if the
problems persists
1. Make sure the ambient
temperature of installation
is less than 55 C
2. Check the installed
location which should be
not directly to the sun
3. Check the required space
near the heat sink and the
air flow area of heat sink
ensure it is clear
4. Remove any obstacle that
block the heat dissipation
near heat sink
5. If the problem persists,
replace it
Relay Fault
The checking of
AC relay is
abnormal
Inverter is abnormal
1. Disconnect ALL PV (+) and
PV (-)
2. Wait for 1 minutes
3. After no display on LCD,
reconnect the DC again
and check
4. If the fault message still
appears again after restart,
call your local service
1. Make sure installation is
configured under
specification
2. Processes the same
actions again as left
column mentioned
3. If the problem still persists,
please try to

Upgrade the latest
firmware according to
instruction or

Replace the unit
DC INJ High
The detected DC
current of Hall
sensor component
of AC output side is
higher than
permission
1. The Hall sensor at
output is
abnormal
2. DC current of AC
grid is higher than
the permissible
value.
3. Inverter is
abnormal
1. Observe the faulty
condition for 1 minute.
2. If it does not restore to
normal operation, please
call service.
1. Reconnect DC connection
and check
2. If the fault continues

Update the firmware
according to
instructions, or

Replace the Inverter
EEPROM
Failure
Reading or writing
of EEPROM of
control board
inside Inverter is
abnormal
1. Operating
Firmware is
abnormal
2. Circuits of control
board inside
Inverter are
abnormal
3. Inverter is
abnormal
1. Disconnect PV (+) and PV
(-) from the input, start the
unit again.
2. If it does not work, please
call service.
1. Do the same actions as left
column again
2. If the fault continues

Update the firmware
according to
instructions, or

Replace the Inverter
SCI Failure
Communication
between the two
CPUs is abnormal .
1. Operating
firmware is
abnormal
2. Circuits of control
board inside
Inverter are
abnormal
3. Inverter is
abnormal
1. Disconnect PV (+) and PV
(-) from the input, start the
unit again.
2. If it does not work, please
call service.
1. Do the same actions as left
column again
2. If the fault continues

Update the firmware
according to
instructions, or

Replace the Inverter