Technical data

40
Chapter 5 Operation
Warn/Protect/
Fault
Definition Possible causes
Recommended
solutions
2、
GridV.OutLim
Grid voltage
exceeds the
specified range,
or grid is not
detected
1、Grid voltage is
abnormal;
2、Power grid
outage
3、Cable
connection
between the
inverter and the
grid is
disconnected
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 connection to the
grid is disconnected or
has abnormalities;
4、Contact after-sales
service personnel
3、GridF.OutLim
Grid voltage
frequency is
abnormal, or grid
is not detected
1、Grid frequency
has abnormalities;
2、Power outage of
the grid;
3、Cable
connection
between the
inverter and the
grid is
disconnected
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 connection to the
grid is disconnected or
has abnormalities;
4、Contact after-sales
service personnel
4、PV.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
switch, wait for 5
minutes, turn on the
switch again;