Display Message Causes Solution
E002
Input OV
(Input Overvoltage)
This alarm is indicated when the
inverter input voltage (coming
from the PV array) exceeds the
operating threshold. The alarm
is triggered before reaching the
absolute threshold beyond which
the inverter will be damaged.
When the inverter input voltage
exceeds the Over Voltage
threshold, the inverter will
generate the alarm and not start.
Measure the input voltage in the inverter with a
voltmeter.
If it is higher than the maximum voltage of the
operating interval, the alarm is valid. Check the
conguration of the PV array.
If it is lower than the maximum voltage of the
operating interval, the alarm is caused by an internal
malfunction. Contact ABB technical support.
E003
No Pars (DSP)
(Internal
Parameters Error)
The main microcontroller is
unable to correctly initialize the
two DSPs (boost stage and
inverter stage).
This is usually due to
communication problems on the
internal bus of the inverter.
This is an error inside the inverter that cannot be
checked externally. If the problem persists (after
switching the inverter off and then on again), contact
ABB technical support.
E004
Bulk OV
(Bulk Overvoltage)
Error inside the inverter. The
alarm is raised when the voltage
at the ends of the bulk capacitors
exceeds the Over Voltage
threshold.
The alarm can be triggered by causes external to the
inverter. An excessive inverter input voltage can be
detected as a bulk overvoltage condition. In this case,
it is advisable to check the inverter input voltage and
if this value is near the input OV threshold, reexamine
the conguration of the photovoltaic array. The alarm
can be triggered by causes internal to the inverter; If
input voltage is O.K. and alarm is still present, contact
ABB technical support.
E005
Internal Error
(Internal
Communication
Error)
The alarm occurs when there
are communication problems
between the control devices
inside the inverter.
Error inside the inverter that cannot be checked
externally. If the problem persists (after switching the
inverter off and then on again), contact ABB technical
support.
E006
Output OC
(Output
Overcurrent)
The alarm appears when the
inverter output current exceeds
the output overcurrent threshold
of the inverter.
Error inside the inverter that cannot be checked
externally. If the problem persists (after switching the
inverter off and then on again), contact ABB technical
support.
E007
IGBT Sat.
(IGBT Saturation)
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. If the error occurs
sporadically, it may be caused by a sharp transition
of the grid voltage or the input voltage, but is not
attributable to inverter malfunctioning. If the error is
associated with an internal fault, it will continue to
appear; contact ABB technical support.
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