Technical data

Chapter 4 Operation
36
A
larm/
Protection/
Fault
Definition Possible causes
Recommended
solutions
switch, wait for 5
minutes, and then turn
on the switch again;
4、Contact after-sales
service personnel
5、PV1 (2)
Reverse*
PV module is
connected inversely
PV positive pole
and negative pole
are connected
inversely;
1、Check whether
positive pole and
negative pole are
connected inversely;
2、Contact after-sales
service personnel
6、GFCI.Err
System leakage
current is too high
1、Excessive
parasitic
capacitance on PV
module due to
environmental
factor;
2、Grounding is
abnormal;
3、Fault inside the
inverter
1、Observe for 10
minutes and see
whether the alarm will
be eliminated
automatically;
2.、Detect whether the
electrical connection is
abnormal
3、Contact after-sales
service personnel
7、IsolationErr
Insulation impedance
of PV positive to
ground or PV
negative to ground
exceeds the specified
range
Air humidity is high
1、 Observe for 10
minutes and see
whether the alarm will
be eliminated
automatically;
2、Check insulation of
PV system;
3、Contact after-sales
service personnel
8、
IntProtectA~Z
Internal protection of
the inverter
Protection
procedure occurs
inside the inverter
1、Observe for 10
minutes and see
whether the alarm will
be eliminated
automatically;
2、Contact after-sales
service personnel