EN
125
- Error code
- Error message
- LED status
Name of Alarm and Cause
Solution
- W049 *
- Global-Settings Event
- No LED
Variation of the grid standard
Variation of the inverter's grid standard;
this change can be made through the Web
User Interface.
• The variation in the inverter's grid standard 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
- W058
- System Frozen
- Yellow LED
Converter in locked state:
The converter lock state is connected to
an installation phase in which the starts-up
and grid connection conditions are not yet
present.
• Complete the commissioning phase of the inverter.
- If the problem persists (once the commissioning phase has
been completed and the inverter has been switched off and
back on again), contact customer assistance.
- 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 current.
• 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 overvoltage (photovoltaic generator):
The alarm is generated when the input
voltage (from the PV generator) exceeds
the inverter's threshold of maximum input
voltage.
The alarm is triggered before reaching
the absolute threshold beyond which the
inverter will be damaged.
When the inverter's input voltage exceeds
the Over Voltage 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
configuration 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 pars (DSP)
- Yellow LED
DSP initialisation error:
The main microcontroller is unable to
correctly initialize 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 persists (once the inverter has been switched
off and back on again), 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
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 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
- Internal error
- Yellow LED
Communication error inside the inverter:
The alarm occurs when there are
communication problems 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.
