Technical data

Chapter 4 Operation
35
A
larm/
Protection/
Fault
Definition Possible causes
Recommended
solutions
service personnel
2、
GridV.OutLim
Grid voltage exceeds
the specified range,
1、Grid voltage is
abnormal;
Power grid breaks
down
2、Cable
connection
between the
inverter and the
grid is poor;
1、Observe for 10
minutes and see
whether the alarm will
be eliminated
automatically;
2、Check whether the
grid voltage is within the
specified range;
3、Check whether the
cable between the
inverter and power grid
is disconnected or has
abnormalities;
4、Contact after-sales
service personnel
3、GridF.OutLim
Grid voltage
frequency is
abnormal, or power
grid is not detected
1、Grid frequency
has abnormalities;
2、Cable
connection
between the
inverter and the
grid is poor;
1、Observe for 10
minutes and see
whether the alarm will
be eliminated
automatically;
2、Check whether the
grid frequency is within
the specified range;
3、Check whether the
cable between the
inverter and power grid
is disconnected or has
abnormalities;
4、Contact after-sales
service personnel
4、PV1 (2)
VoltOver*
PV voltage exceeds
the specified value
PV over-voltage
1、Observe for 30
minutes and see
whether the alarm will
be eliminated
automatically;
2、Check whether PV
voltage exceeds the
specified range;
3、Turn off the PV input