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000413BG
8 - Maintenance
- Code on display
- Error message
- Signal
Name of Alarm and Cause
Solution
- E001
- Input OC
-
Yellow LED
Input over-current (photovoltaic generator):
The alarm occurs when the inverter's input current
exceeds the inverter's threshold for maximum input cur-
rent.
• Check whether the composition of the
PV generator enables
input current which exceeds the maximum threshold allowed by
the inverter and that the configuration of the
inputs (independent
or in parallel) is carried out correctly.
- If both checks are positive, contact customer assistance.
- E002
- Input OV
-
Yellow LED
Input over-voltage (photovoltaic generator):
The alarm is generated when the input voltage (from the
PV generator) exceeds the inverter's threshold of maxi-
mum input voltage.
The alarm occurs before reaching the absolute threshold
over which the inverter is damaged.
When the inverter's input voltage exceeds the Over Vol-
tage threshold, the inverter will not start up due to the
generation of the alarm.
• It is necessary to measure the
input voltage inside the inverter
with a voltmeter.
- If it is higher than the maximum voltage of the operating range,
the alarm is genuine and it is necessary to check the configura
-
tion of the PV generator. If the voltage has also exceeded the
maximum input threshold the inverter could be damaged.
- If it is lower than the maximum voltage of the operating range,
the alarm is caused by an internal malfunction and it is necessary
to contact customer assistance.
- E003
- No Parameters
-
Yellow LED
DSP initialisation error:
The main microcontroller cannot initialise correctly the
two DSPs (booster stage and inverter stage). The error
is caused by communication problems on the inverter's
internal bus.
• 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.
- 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 th-
reshold).
•
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 inver-
ter's input voltage and should this value be close to the input OV
threshold, review the configuration of the photovoltaic 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 assistance.
- 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 (once the inverter has been switched off and back
on) persists, contact customer assistance.
- E006
- Output OC
-
Yellow LED
Output over current:
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 (once the inverter has been switched off and back
on) persists, contact customer assistance.
- E007
- IGBT Sat
-
Yellow LED
Saturation recorded on the IGBT components:
The alarm occurs when one of the inverter's active devi-
ces is in a saturated state.
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.
- 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 (once the inverter has been switched off and back
on) persists, contact customer assistance.
- E010
- Bulk Low
-
Yellow LED
Low “Bulk” voltage (DC-DC circuit):
•
The alarm may be triggered by causes external to the
inverter: a reduced input voltage on the inverter (just
above the activation voltage) but which is not accompa-
nied by a sufficient availability of power from the pho
-
tovoltaic generator (typical condition of the stages with
limited irradiation)
- If the error signal occurs sporadically, it may be due to causes
external to the inverter (limited irradiation and so limited power
availability from the PV generator).
- If the problem occurs systematically also in conditions of high
irradiation and with
input voltage which is significantly higher 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 (once the inverter has been switched off and back
on) persists, contact customer assistance.
- E012
- DcDc Fail
-
Yellow LED
Error in the “Booster” circuit (DC-DC side) recorded
by the “Inverter” circuit (DC-AC side):
Error internal to inverter relating to operation of the DC-
DC circuit regime (Booster)
• 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.