Technical data

Chapter 5 Operation
41
Warn/Protect/
Fault
Definition Possible causes
Recommended
solutions
4、Contact after-sale
service personnel
5、PV.Reverse
PV panel is
connected
reversely
1、PV positive pole
and negative pole
are connected
reversely;
1、Check whether
positive pole and
negative pole are
connected reversely;
2、Contact after-sales
service personnel
6、AC.ContErr
AC contactor has
abnormality
1、AC contactor is
damaged;
2、Power supply
circuit of the
contactor has
problem
Contact after-sale
service personnel
7、EmergencyStp
Inverter is in the
status of
emergent stop
Emergency stop
button is pressed
1、Check whether
emergency stop button
is pressed. If so, restore
the button;
2、Contact after-sale
service personnel if the
problem still exists
8、GFCI.Err
PV grounding
fault
1、Excessive
current passes
through return
circuit in the result
of disconnecting
internal PV
grounding
1、Check whether the
system has ground
connection or
grounding fault;
2、Check whether the
LED on GFDI is lighted
on. If so, replace with a
new fuse;
3、Contact after-sales
service
personnel