ABB Fimer PVI-10.0/12.5-TL-OUTD Product Manual page 92

- Code on display
- Error message Name of Alarm and Cause
- Signal
Failure of the test on the inverter's relay (DC-AC cir-
cuit):
Before connecting to the grid the inverter carries out in-
- E021
ternal tests. One of these tests concerns the correct ope-
- Self Test Error 2
ration of the inverter relay. The test is carried out by "for-
-
Yellow LED
cing" the switching of the relay and checking its operation.
The error is generated if a problem is found in actioning
the relay.
Timeout of the tests undertaken on the relays inside
- E022 the inverter:
- Self Test Error 4 Execution time for the self-test carried out on the relay
-
Yellow LED of the DC_AC (inverter) circuit too high. It may indicate a
problem connected to the aforementioned relays
Feeding of continuous current to grid outside of ran-
ge:
The error is generated if the continuous component of
the current supplied to the grid exceeds the threshold of
- E023 0.5% of the normal operating current.
- DC in error In any case the inverter is not blocked due to the E023
-
Yellow LED error, but tries to reconnect to the grid.
The sporadic repetition of the error is a sign of serious
grid distortions or sharp irradiation changes, while sy-
stematic repetition of the error signal will indicate a bre-
akdown on the inverter
- E024
Error inside the inverter:
- Internal error
Error inside the inverter
-
Yellow LED
Low value of insulation resistance:
Before connecting to the grid the inverter measures the
insulation resistance of the PV generator compared to
ground. Should the measurement of the insulation resi-
stance be below 1Mohm, the inverter does not connect
to the grid and shows the "Riso Low" error. The causes
- E025*
may be:
- Riso Low
- PV panel(s) damaged;
- Yellow LED
- Junction box(es) of the panels not correctly sealed, so
as to permit infiltration by water and/or humidity;
*not visualised on di-
- Problems in connections between panels (not perfectly
splay
fit);
- Poor quality of cable joints;
- Presence in the DC section of unsuitable or damaged
overvoltage surge arresters outside the inverter (redu-
ced 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 inverter
- Yellow LED
Grid voltage outside of range:
- E027 Error in the internal measurement of grid voltage (set by
- Error Meas V law) in order to have a redundant measurement (2 mea-
-
Yellow LED surements on the same parameter made by two different
circuits)
Grid frequency outside of range:
- E028 Error in the internal measurement of grid frequency (set
- Error Meas F
by law) in order to have a redundant measurement (2
- Yellow LED measurements on the same parameter made by two dif-
ferent circuits)
- E029 Internal over voltage on the measurement of the
- Mid Bulk OV "Mid bulk":
- Yellow LED Error internal to the inverter (only triphase models)
Solution
• Error inside the inverter and cannot be checked externally.
By its nature, the alarm only occurs prior to connection to the grid
- If the problem (once the inverter has been switched off and back
on) persists, contact customer assistance.
• Error inside the inverter and cannot be checked externally.
- If the problem (once the inverter has been switched off and back
on) persists, contact customer assistance.
Once the error occurs, the inverter tries to return to normal ope-
ration.
- Should the error occur sporadically, it may be caused by a bru-
sque 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 breakdown, 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 (once the inverter has been switched off and back
nor) persists, contact customer assistance.
• Measure the insulation resistance using a megohmmeter posi-
tioned in the photovoltaic field (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 gene-
rator 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 (once the inverter has been switched off and back
on) persists, contact customer assistance.
• Error inside the inverter and cannot be checked externally.
- If the problem (once the inverter has been switched off and back
on) persists, contact customer assistance.
• Error inside the inverter and cannot be checked externally.
- If the problem (once the inverter has been switched off and back
on) persists, contact customer assistance.
• Error inside the inverter and cannot be checked externally.
- If the problem (once the inverter has been switched off and back
on) persists, contact customer assistance.
8 - Maintenance
92