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Communication problems with memory and internal
clock.
Contact technical assistance.
Problem with internal memory containing inverter
settings.
Problem with internal memory containing inverter
settings.
Reset the nation using the special menu.
Switch the inverter off and back on again.
Communication problem between the two
microprocessors.
Contact technical assistance.
Problem with internal memory containing inverter
settings.
Incompatible firmware loaded on microprocessors.
The inverter auxiliary power not working properly
Inverter differential fault.
Attempts to reconnect run out because of a ground
leakage.
The DSP have performed an operating error.
Manually start the inverter (see
‘COMMANDS’ Menu paragraph). If this
does not work, contact technical assistance.
The inverter has received a remote shutdown
command. It remains in this state until receiving an
unlock command (remote or manual).
Manually start the inverter (see
‘COMMANDS’ Menu paragraph).
Analogue readings reference fault.
Contact technical assistance.
Grid voltage reading does not match between the
two microprocessors.
Manually start the inverter (see
‘COMMANDS’ Menu paragraph). If this
does not work, contact technical assistance.
Grid frequency reading does not match between the
two microprocessors.
Leakage current reading does not match between
the two microprocessors.
The autotest procedure was not successful: one or
more thresholds or response times were incorrect.
Output current sensor fault.
Contact technical assistance.
EFFICIENCY AND POWER LIMITATION
The inverter limits its output power in the following situations:
PV generator power exceeds maximum inverter power
MPP current on the PV generator is higher than the “Max. input current”. See “Figure 1” in the Appendix.
The grid voltage is less than the “Minimum voltage at rated power”. In this case, the inverter limits output current to
“Max. output current”.
Inverter temperature exceeds the “Rated power temperature range”: in this case, the inverter reduces the output power.
In the cases provided for by local regulations: see the „INFORMATION‟ menu paragraph.
In all the aforementioned cases, the yellow LED lights up on the inverter.