150
000761AG-F
8 - Maintenance
- Error code
- Error message
- Warning
Name of Alarm and Cause
Solution
- E004
- Bulk OV
-
Yellow LED
“Bulk” over-voltage (DC-DC circuit):
Error inside the inverter. The alarm is raised when the
voltage at the heads of the bulk capacitors exceeds
the Over Voltage threshold (internal unchangeable
threshold).
• The alarm may be triggered by causes external to the
inverter:
- An excessive input voltage can be recorded as a condition
for bulk over voltage. In this case it is advisable to check the
inverter's input voltage and should this value be close to the
input OV threshold, review the configuration of the photovol
-
taic generator.
- Excessive grid voltage could cause the bulk voltage to rise in
uncontrolled fashion with a consequent protection intervention
and hence generation of the alarm. In these cases the alarm is
transitory and the inverter automatically restarts
- The alarm may be triggered by causes inside the inverter
and in this case it is necessary to contact customer assistan-
ce.
- E005
- Comm.Error
-
Yellow LED
Communication error inside the inverter:
The alarm occurs when there are communication pro-
blems between the control devices inside the inverter.
• 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.
- E006
- Output OC
-
Yellow LED
Output overcurrent:
The alarm occurs when the inverter's output current
exceeds the inverter's threshold for maximum output
current.
• 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.
- E007
- IGBT Sat
-
Yellow LED
Saturation recorded on the IGBT components:
The alarm appears when one of the active devices of
the inverter is in saturation state.
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.
- E009
- Internal error
-
Yellow LED
Error inside the inverter:
Error inside the inverter
• 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.
- E010
- Bulk Low
-
Yellow LED
Low “Bulk” voltage (DC-DC circuit):
The alarm can be caused by causes external to the
inverter: a reduced input voltage on the inverter (just
above the activation voltage) but which is not accom-
panied by a sufficient availability of power from the
photovoltaic generator (typical condition of the stages
with limited irradiation)
- If the error signal occurs sporadically, it may be due to cau-
ses external to the inverter (limited irradiation and so limited
power availability from the
PV generator).
- If the problem occurs systematically even in conditions of
high irradiation and with
input voltage which is significantly hi
-
gher than the activation voltage, contact customer assistance.
- E011
- Ramp Fail
-
Yellow LED
Long wait for “Booster” regime to start:
Error internal to inverter relating to start up time for
DC-DC circuit regime (Booster)
• 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.
- E012
- DcDc Fail
-
Yellow LED
Error in the “Booster” circuit (DC-DC side) recor
-
ded by the “Inverter” circuit (DC-AC side):
Error inside the inverter regarding the operation of the
DC-DC circuit part (Booster).
• 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.
- E013
- Wrong Mode
-
Yellow LED
Incorrect configuration of inputs (set in parallel
rather than independent):
The alarm is generated solely when the inverter is
configured with parallel inputs. In this particular confi
-
guration the inverter checks the input voltage of each
of the two channels and if the two voltages differ by
more than 20Vdc, the alarm is raised
.
• Check that the setting of the "IN MODE" switch is specifically
set to "PAR" and that the bridges between the two
input chan-
nels have been included.
- If the configuration of the inverter is correct, check that the
input strings have the usual number of standard panels of the
usual brand and with the same inclination/orientation.
- If both the configuration of the inverter and the characteristics
of the
PV generator conform with the specifications, contact
customer assistance.
- E014
- Over Temp.
-
Yellow LED
Excessive temperature inside the inverter:
External temperature over 60°C. This parameter also
depends on the power which the inverter must supply
since the measurement of temperatures is done
internally and is influenced by the heat dissipated by
the components of the inverter itself
• Check that the inverter is not exposed to direct sunlight. Wait
for the temperatures to which the inverter is exposed to return
to the operating range and for the inverter to cool down.
- If the problem persists (once the ambient temperature has
returned to within the range), contact customer assistance.
You must remember to wait for the time necessary to allow the
inverter to cool down.
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