- 139 -
000908AG
8 - Maintenance
- Error code
- Error message
- Warning
Name of Alarm and Cause
Solution
- W006
- Grid OF
-
(On)
Grid over-frequency:
This error signal occurs when during the inverter's
normal operation the grid frequency exceeds the
maximum limit set by the operator.
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- If the voltage and the grid frequency come back within the
limits (also when the inverter is connected to the grid), contact
customer assistance
- W007
- Grid UF
-
(On)
Grid under-frequency:
This error signal occurs when during the inverter's
normal operation the grid frequency exceeds the
minimum limit set by the operator.
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- If the voltage and the grid frequency come back within the
limits (also when the inverter is connected to the grid), contact
customer assistance
- W010
- Fan Fail
-
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Fan Fail:
This error occurs when there is a malfunction in the
fan/fans inside the inverter.
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- If the alarm repeats persistently, contact customer
assistance.
- W011
- Bulk UV
-
(On)
Low “Bulk” voltage (DC-DC circuit):
The alarm (which is a warning and not an error)
is generated when the voltage at the heads of the
bulk capacitors does not reach the threshold for
the operation of the inverter (internal unchangeable
threshold).
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inverter's grid connection.
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input voltage on the inverter.
- If it does not exceed Vstart, check for the presence of
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- If it exceeds Vstart, contact customer assistance.
- W012
- Batt. Low
-
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Battery Low:
The inverter has detected a backup battery voltage
that is too low.
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set them.
Subsequently arrange to completely switch off the inverter (on
both AC and DC) and wait a few minutes.
Finally, restart the inverter and check whether the date/
time are now correctly set or whether they have reset to
01/01/2000. In this case replace the battery with the inverter
completely switched off (isolate AC and DC side) being careful
to maintain the polarity
- W013
- Clock Fail
-
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Clock Fail:
The alarm occurs when there is a difference of more
than 1 minute in the time shown on the web server
user interface compared to the internal time of the
microprocessors and indicates a malfunction of the
clock circuit.
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- If the alarm repeats persistently, contact customer
assistance.
- W015
- Island Detect.
-
(On)
Disconnection due to Anti-Islanding:
The inverter has been improperly connected to an
island grid.
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an island grid.
- If the grid to which the inverter is connected is an island
grid, switch the inverter off and then on again: if the problem
persists, contact customer assistance.
- W022
- Reactive power
mode changed
-
No Icon
Variation in means of managing reactive power:
Variation in the means of managing reactive power;
this change can be made through the web server user
interface.
The variation in the means of managing reactive power 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
- W023
- date/time changed
-
No Icon
Variation in the inverter's date and time:
Variation of the inverter's date and time; this change
can be made through the web server user interface.
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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
- W024
- Energy data reset
-
No Icon
Zeroing of the statistical energy data memorised
in the EEPROM:
Reset of the energy data saved in the inverter; this
change can be made through the web server user
interface.
The zeroing of the partial energy values memorised by the
inverter 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
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which the production statistics are saved is replaced
- W026
- AFDD user reset
-
No Icon
Reset of the Arc Fault error:
Manual reset of the Arc Fault error; this change can
be made through the web server user interface.
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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 Icon
METER device communication problem:
Error detected on the RS485 serial communication
line between the inverter and the energy meter
(METER).
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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.
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- If the problem persists (once the inverter has been switched
off and back on again), contact customer assistance.
