ABB UNO-2.0-TL-OUTD - Page 108

- 108 -
000515AG
8 - Maintenance
- Code on display
- Error message
- Signal
Name of Alarm and Cause Solution
- W015
- Island Detect.
-
Yellow LED
Disconnection due to Anti-Islanding:
The inverter has been improperly connected to an is-
land grid.
• Check that the grid to which the inverter is connected is not
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.
- W017*
- String Err.
-
Yellow LED lamp.
* (only for models with
monitored string fuses)
Error recorded in measuring string currents:
Damaged string protection fuse(s)
• 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 contin-
ues to show the alarm message check whether the settings
to be made through the Aurora Manager software are correct
(presence or absence of one or more input strings).
- W018 *
- SPD DC Err
-
Yellow LED lamp.
* (only for models with
monitored SPD)
Intervention of overvoltage surge arresters on DC
side:
Damaged overvoltage surge arresters positioned on
DC side
• Observe the inspection window on each surge arrester (DC
side). If it is red, the surge arrester is damaged and the car-
tridge must be replaced.
- If the alarm status persists, even if all the surge arresters have
a green inspection window, contact customer assistance.
- W019 *
- SPD AC Err
-
Yellow LED lamp.
* (only for models with
monitored SPD)
Intervention of overvoltage surge arresters on AC
side:
Damaged overvoltage surge arresters positioned on
AC side
• Observe the inspection window on each surge arrester (AC
side). If it is red, the surge arrester is damaged and the car-
tridge must be replaced.
- If the alarm status persists, even if all the surge arresters have
a green inspection window, contact customer assistance.
- W022 *
- Reactive power
mode changed
-
No LED
*not visualised on dis-
play
Variation in means of managing reactive power:
Variation in the means of managing reactive power;
this change can be made through the display or ad-
vanced conguration software.
The variation in the means of managing reactive power is done
directly by the customer/installer and is not an error. The infor-
mation is only saved on the historic record of the events memo-
rised by the inverter
- W023 *
- date/time changed
-
No LED
*not visualised on dis-
play
Variation in the inverter's date and time:
Variation of the inverter's date and time; this change
can be made through the display or advanced congu-
ration software.
• 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 saved on the historic record of the events memorised
by the inverter
- W024 *
- Energy data reset
-
No LED
*not visualised on dis-
play
Zeroing of the statistical energy data memorised in
the EEPROM:
Reset of the energy data saved in the inverter; this
operation can be handled through the display or ad-
vanced conguration software.
The zeroing of the partial energy values memorised by the in-
verter 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
- W026 *
- AFDD user reset
-
No LED
*not visualised on dis-
play
Reset of the Arc Fault error:
Manual reset of the Arc Fault error; this operation can
be made through the display or advanced conguration
software.
• The reset of the Arc Fault error is done directly by the cus-
tomer/installer and is not an error. The information is only saved
on the historic record of the events memorised by the inverter
- W027 *
- Latch-Manual reset
-
No LED
*not visualised on dis-
play
Resetting of the Latch alarm conditions:
Manual reset of the Latch alarm conditions; this opera-
tion can be made through the display or advanced con-
guration 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
- 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 rmware update has not
been completed.
• Complete any pending rmware updates.
- If the problem persists once the rmware 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.
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