ABB PVS-60-TL-US Product Manual page 157

- Error code
- Error message Name of Alarm and Cause
- Warning
Feeding of direct current to grid outside of range:
The error is generated if the direct component of the
current supplied to the grid exceeds the threshold of
0.5% of the rated operating current.
- E023
In any case, the inverter does not stop because of the
- DC in error
E023 error, but tries to connect to the grid again.
- Yellow LED
The sporadic repetition of the error is a sign of serious
grid distortions or sharp irradiation changes, while
systematic repetition of the error signal will indicate a
breakdown on the inverter
- E024
Error inside the inverter:
- Internal error
Error inside the inverter
- Yellow LED
Low value of isolation resistance:
Before connecting to the grid the inverter measures
the isolation resistance of the PV generator compared
to ground. Should the measurement of the isolation
resistance be below 1Mohm, the inverter does not
connect to the grid and shows the "Riso Low" error. The
causes may be:
- Damaged PV panel(s).
- E025
- Junction box(es) of the panels not correctly sealed,
- Riso Low
so as to permit infiltration by water and/or humidity;
-
Red LED
- Problems in connections between panels (not
perfectly fit);
- Poor quality of cable joints;
- Presence in the DC section of unsuitable or
damaged overvoltage surge arresters outside the
inverter (reduced ignition voltage compared to the
characteristics of the strings of the PV generator);
- Presence of humidity inside any junction box
- E026 Internal reference voltage outside of range:
- Vref Error Wrong measurement of reference voltage inside
- Yellow LED inverter
Grid voltage outside of range:
- E027 Error in the internal measurement of grid voltage
- Error Meas V (set by law) to have a redundant measurement (2
-
Yellow LED measurements on the same parameter made by two
different circuits)
Grid frequency outside of range:
- E028 Error in the internal measurement of the grid
- Error Meas F frequency (imposed by regulations) to have a
- Yellow LED measurement redundancy (2 measurements on the
same parameter carried out by two different circuits).
- E029 Internal overvoltage on the measurement of the
- Mid Bulk OV "Mid bulk":
- Yellow LED Error inside the inverter (only triphase models)
High leakage current (DC side):
- Error on the internal measurement (performed when
- E030 the inverter is connected to the grid) of the DC side
- Error Meas Ileak
(PV generator) leakage current with respect to ground
- Yellow LED (required by regulations) to have a measurement
redundancy (2 measurements of the same parameter
carried out by two independent circuits)
Output relay damaged:
- E031 Measurement of internal voltage on heads of the
- Error Read V output relay outside of range. There is too great a
- Yellow LED difference in voltage between the input and output of
the grid connection relay.
Imbalanced output currents:
- E032
Measurement of the unbalance in the output voltage
- Error Read I
(made across the three phases) outside of range (only
-
Yellow LED
in three-phase models)
Solution
Once the error appears, the inverter attempts to resume
normal operation.
- Should the error occur sporadically, it may be caused by a
brusque transition of the grid voltage or of the input voltage,
but is not due to a malfunction by the inverter.
- If the error is connected to an internal fault, it will continue to
appear and so it is necessary to contact customer assistance.
• 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.
• Measure the isolation resistance using a megohmmeter
positioned in the photovoltaic array (positive terminal short-
circuited at the negative pole) compared to ground. The
measurement is strongly influenced by the environmental
conditions, so must be made under the same conditions in
which the error occurred.
- If the value measured is lower than 1 megaohm, a
check must be carried out by a technician/installer on the
photovoltaic generator to identify and eliminate the problem.
- If the value measured is higher than 1 megaohm and the
error signal persists, contact customer assistance.
• 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.
• 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.
• 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.
• 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.
• 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.
• 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.
• 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.
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8 - Maintenance