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- Code on display
- Error message
Name of Alarm and Cause
- Signal
- W010 *
- Fan broken!
Fan broken:
-
Yellow LED lamp.
This error occurs when there is a malfunction in the fan/
*not visualised on di-
fans inside the inverter.
splay
Bulk Under-voltage:
- W011
The alarm (which is a warning and not an error) is gene-
- Bulk UV
rated when the voltage at the heads of the bulk capaci-
-
Yellow LED
tors does not reach the threshold for the operation of the
inverter (internal unchangeable threshold).
- W012 *
- Batt. Flat
Battery flat:
-
Yellow LED
The inverter displays the "Battery flat" message when it
*not visualised on di-
records a voltage for the buffer battery which is too low.
splay
- W013 *
Clock broken:
- Clock broken
The alarm occurs when there is a difference of over 1
-
Yellow LED
minute in the time displayed compared to the internal
*not visualised on di-
time of the microprocessors and indicates a malfunction
splay
of the clock circuit.
- W017*
- String Err.
Error recorded in measuring string currents:
-
Yellow LED lamp.
Damaged string protection fuse(s)
* (only for models with
monitored string fuses)
- W018 *
Intervention of overvoltage surge arresters on DC
- SPD DC Err
side:
-
Yellow LED lamp.
Damaged overvoltage surge arresters positioned on DC
* (only for models with
side
monitored SPD)
- W019 *
Intervention of overvoltage surge arresters on AC
- SPD AC Err
side:
-
Yellow LED lamp.
Damaged overvoltage surge arresters positioned on AC
* (only for models with
side
monitored SPD)
- W022 *
- Reactive power mode
Variation in means of managing reactive power:
changed
Variation in the means of managing reactive power; this
-
No LED
change can be made through the display or advanced
*not visualised on di-
configuration software.
splay
- W023 *
Variation in the inverter's date and time:
- date/time changed
Variation of the inverter's date and time; this change can
-
No LED
be made through the display or advanced configuration
*not visualised on di-
software.
splay
Zeroing of the statistical energy data memorised in
- W024 *
the EEPROM:
- Energy data reset
Reset of the energy data saved in the inverter; this ope-
-
No LED
ration can be handled through the display or advanced
*not visualised on di-
configuration software.
splay
Solution
• Error inside the inverter and cannot be checked externally.
- If the alarm repeats persistently, contact customer assistance.
• Raise the value of the activation voltage (Vstart) so as to have
sufficient power from the PV generator at the time of the inver-
ter's grid connection.
• Check the input voltage on the inverter.
- If it does not exceed Vstart, check for the presence of suffi-
cient irradiation and the correct composition of the system.
- If it exceeds Vstart, contact customer assistance
• Check that the date/time are set correctly and, if they are not,
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
(section AC and DC side) being careful to maintain the polarity
• Error inside the inverter and cannot be checked externally.
- If the alarm repeats persistently, contact customer assistance.
• Check with a multimeter the state of the fuses (positioned on
the fuse boards).
- If one or more fuses is open, arrange to replace them and check
that the input current on the string(s) does not exceed the rating
of the fuses (should parallel strings have been made outside the
inverter).
- If there are no damaged string fuses and the inverter continues
to show the alarm message check whether the settings to be
made through the Aurora Manager software are correct (presen-
ce or absence of one or more input strings).
• Observe the inspection window on each surge arrester (DC
side). If it is red, the surge arrester is damaged and the cartridge
must be replaced.
- If the alarm status persists, even if all the surge arresters have a
green inspection window, contact customer assistance.
• Observe the inspection window on each surge arrester (AC
side). If it is red, the surge arrester is damaged and the cartridge
must be replaced.
- If the alarm status persists, even if all the surge arresters have a
green inspection window, contact customer assistance.
The variation in the means of managing reactive power is done
directly by the customer/installer and is not an error. The informa-
tion is only saved on the historic record of the events memorised
by the inverter
The variation in the inverter's date and time is done directly by the
customer/installer and is not an error. The information is only sa-
ved on the historic record of the events memorised by the inverter
The zeroing of the partial energy values memorised by the inver-
ter 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
• The notice may also occur on substitution of the Memory Card
where the statistical production data is saved
8 - Maintenance
89
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