- 153 -
000570BG
8 - Maintenance
- Error code
- Error message
- Warning
Name of Alarm and Cause
Solution
- W027 *
- Latch-Manual reset
-
No LED
*not visualised on
display
Resetting of the Latch alarm conditions:
Manual reset of the Latch alarm conditions; this
operation can be made through the display or
advanced configuration software.
• The reset of the Latch alarm conditions is done directly by
the customer/installer and is not an error. The information is
only saved on the historic record of the events memorised by
the inverter
- W030
- Energy Meter
ERROR *
-
No LED
* text “METER COM.
ERR." shown on the
display in the general
information (cyclical
screens)
METER device communication problem:
Error detected on the RS485 serial communication
line between the inverter and the energy meter
(METER).
• Check the serial communication line connections between
the inverter and the METER. Particularly check the signal
correspondence, the correct installation of the conductors and
that there are no breaks in the cables.
• Faulty communication card (Comm. card)
• Error inside the inverter and cannot be checked externally.
- If the problem persists (once the inverter has been switched
off and back on again), contact customer assistance.
- W031
- BMS fault
-
No LED
* text “BMS COM.
ERR." shown on the
display in the general
information (cyclical
screens)
Battery unit communication problem:
Error detected on the internal communication line
between the inverter unit and the battery unit.
• Check the serial communication line connections between
the inverter unit and the battery unit. Particularly check the
connectors have been installed correctly and that there are no
breaks in the cables connecting the two units.
• Error inside the inverter and cannot be checked externally.
- If the problem persists (once the inverter has been switched
off and back on again), contact customer assistance.
- W036
- Batt. 1 - W
-
No LED
Problem inside battery unit 1:
Problem inside battery unit. This condition can be
transitory with automatic reset at the end of the alarm
situation
• Error inside the inverter and cannot be checked externally.
- If the problem persists (once the inverter has been switched
off and back on again), contact customer assistance.
- W037
- Batt. 1 - F1
-
No LED
Error inside battery unit 1:
Problem inside battery unit. This condition can be
transitory with automatic reset at the end of the alarm
situation
• Error inside the inverter and cannot be checked externally.
- If the problem persists (once the inverter has been switched
off and back on again), contact customer assistance.
- W039
- Batt. 2 - W
-
No LED
Problem inside battery unit 2:
Problem inside battery unit. This condition can be
transitory with automatic reset at the end of the alarm
situation
• Error inside the inverter and cannot be checked externally.
- If the problem persists (once the inverter has been switched
off and back on again), contact customer assistance.
- W040
- Batt. 2 - F1
-
No LED
Error inside battery unit 2:
Problem inside battery unit. This condition can be
transitory with automatic reset at the end of the alarm
situation
• Error inside the inverter and cannot be checked externally.
- If the problem persists (once the inverter has been switched
off and back on again), contact customer assistance.
- W042
- Batt. 3 - W
-
No LED
Problem inside battery unit 3:
Problem inside battery unit. This condition can be
transitory with automatic reset at the end of the alarm
situation
• Error inside the inverter and cannot be checked externally.
- If the problem persists (once the inverter has been switched
off and back on again), contact customer assistance.
- W043
- Batt. 3 - F1
-
No LED
Error inside battery unit 3:
Problem inside battery unit. This condition can be
transitory with automatic reset at the end of the alarm
situation
• Error inside the inverter and cannot be checked externally.
- If the problem persists (once the inverter has been switched
off and back on again), contact customer assistance.
- W045
- Sys disconnected
-
Yellow LED
Disconnection of system from grid:
Warning of disconnection of system from electrical
grid (no DC input voltage) because of dead battery
pack or no demand from domestic loads
• Check that, when the warning occurs, the battery pack
is dead and/or there have been no energy demands from
domestic loads for more than 10 minutes.
- W046
- Grid conn. fault
-
Yellow LED
Connection to the grid unsuccessful
The alarm is logged when a Missing grid or Input UV
error occurs or due to the manual disconnection of the
inverter during the grid connection sequence.
• Once the error occurs, the inverter tries to return to normal
operation.
If the problem persists after a number of attempts to connect
the inverter, switch the inverter off and then on again.
- If the problem persists (once the inverter has been switched
off and back on again), contact customer assistance.
- W047
- Update Incomplete
-
Yellow LED
FW update method unsuccessful
The alarm occurs when a firmware update has not
been completed.
• Complete any pending firmware updates.
- If the problem persists once the firmware updates have been
completed, switch the inverter off and on again.
- If the problem persists (once the inverter has been switched
off and back on again), contact customer assistance.
- W048
- Periodic GridOff
-
Yellow LED
Automatic disconnection from the grid due to time
limit:
If the inverter exceeds the set grid connection time
limit set by the grid standard, it will automatically have
to carry out a disconnection and reconnection to the
grid to carry out the Riso test.
• The presence of this alarm is not an error as the automatic
disconnection is prescribed by safety regulations.
- If the inverter disconnects in a shorter time than expected,
contact customer assistance.
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