socomec SUNSYS - B10, Installation And Operation Manual

Page: 47 / 54

47
Fault
Message
Fault definition Possible Causes
Proposed Actions for
End-user
Proposed Actions for
Professionals
High DC
Bus
DC voltage of DC
BUS that inside
Inverter is higher
than expectation
DC Input voltage
that feed to DC BUS
is too high
1. Disconnect PV (+) and PV
(-) from the input, start the
unit again.
2. If so, please call service.
1. Do the same actions as left
column again
2. Confirm the configuration
of the PV Panel to ensure
the it is used within
specification
3. If the fault continues

Update the firmware
according to
instructions, or

Replace the Inverter
Low DC
Bus
DC voltage of DC
inside Inverter is
lower than
expectation
DC Input voltage
that feed to DC BUS
is too low
DC Sensor
Fault
The DC sensor at
output is abnormal
1. Operation
firmware is
Abnormal
2. Detected current
of Hall sensor 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 Inverter
Warning: Dangerous high voltage exists on both DC and AC wires and connections. For end-user,
Please do NOT touch any live parts.