Goodwe GW10K-ES-C10 - Page 176

176
undervoltage
exceeds the set time
of LVRT.
temporarily. The inverter will recover
automatically after detecting that the
utility grid is normal.
2. If the problem occurs frequently,
check whether the grid frequency is
within the permissible range. If not,
contact the local power company. If
yes, contact the dealer or the after-
sales service.
11
HVRT Overvoltage/
F11:HVRT
Overvoltage
Utility grid exception.
The duration of utility
grid exception
exceeds the set time
of HVRT.
12
Abnormal GFCI
30mA/ F12:Abnormal
GFCI 30mA (internal)
The input insulation
impedance becomes
low when the inverter
is working.
1. If the problem occurs occasionally, it
may be caused by a cable exception.
The inverter will recover automatically
after the problem is solved.
2. Check whether the impedance
between the PV string and PE is too
low if the problem occurs frequently
or persists.
Abnormal GFCI
60mA/ F13:Abnormal
GFCI 60mA (internal)
Abnormal GFCI
150mA/
F14:Abnormal GFCI
150mA (internal)
Abnormal GFCI/
F15:Abnormal GFCI
13
Large DC of AC
current L1/
F16:DCI protection
L1
The DC component of
the output current
exceeds the safety
range or default
range.
1. If the problem is caused by an
external fault like a utility grid
exception or frequency exception, the
inverter will recover automatically
after solving the problem.
2. If the problem occurs frequently and
the PV station cannot work properly,
contact the dealer or the after-sales
service.
Large DC of AC
current L2/
F17:DCI protection
L2
14
Isolation Fail/
F18:Low insulation
resistance
The PV string is short-
circuited to PE.
The PV system is in a
moist environment
and the cable is not
well insulated to the
ground.
1. Check whether the resistance of the
PV string to PE exceeds 50kΩ. If no,
check the short circuit point.
2. Check whether the PE cable is
connected correctly.
3. If it is confirmed that the insulation
resistance is indeed lower than the
default value in rainy weather, please