Technical data

Chapter 5 Operation
39
Warn/Protect/
Fault
Definition Possible causes
Recommended
solutions
2、PV over-current;
3、DC breaker is
damaged;
4、Circuit inside DC
breaker is loose
2、Check DC breaker;
3、Check PV cable
connection;
4、Check whether the
sunlight is too strong or
the configuration of PV
panel is reasonable;
5、Contact after-sales
service personnel
5、
Warn0050
Temperature
sensor error
1、Temperature
inside inverter
exceeds normal
range;
2、Temperature
sensor has
problem
1、Observe for 5
minutes and see
whether the alarm will
be eliminated
automatically;
2、Check whether the
operation temperature
is ﹣25 ~60 ;℃℃
3、Contact after-sales
service personnel
6、
Warn0020~0150
Inside warning
Inverter has inside
problem
1、Observe for 5
minutes and see
whether the alarm will
be eliminated
automatically;
2、Contact after-sales
service personnel
Protect
1、
Te mp Over
Ambient
temperature or
temperature
inside inverter is
too high
1、Ambient
temperature
outside the inverter
is too high;
2、Radiation air inlet
is blocked; Too
much dust is on the
filter net;
3、Radiation fan is
blocked without
rotation
1、Confirm that external
ambient temperature is
within the specified
range of operating
temperature;
2、Check whether
radiation air inlet is
blocked and filter net
has too much dust;
3、Whether radiation fan
is blocked;
4、Observe for 30
minutes and see
whether the alarm will
be eliminated
automatically;
5、Contact after-sales
service personnel