Sofar solar SOFAR 3.3KTLX-G3 - Page 52

SOFAR 3.3~12KTLX-G3 User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd.
- 48 -
ID03
GridOFP
The power grid
frequency is too high
If the grid voltage/frequency is within the
acceptable range and AC wiring is correct, while
the alarm occurs repeatedly, contact technical
support to change the grid over-voltage,
under-voltage, over frequency, under-frequency
protection points after obtaining approval from
the local electrical grid operator.
ID04
GridUFP
The power grid frequency
is too low
ID05
GFCIFault
GFCI Fault
If the fault occurs occasionally, the possible cause
is that the external circuits are abnormal
occasionally. inverter automatically returns to
normal operating status after the fault is rectified.
If the fault occurs frequently and lasts a long time,
check whether the insulation resistance between
the PV array and earth(ground) is too low, then
check the insulation conditions of PV cable.
ID06
OVRT
OVRT faulty
There are internal faults of inverter, turn OFF the
“DC switch”, wait for 5 minutes, then turn ON the
“DC switch”. Check whether the fault is rectified. If
no, please contact technical support.
ID07
LVRT
LVRT faulty
ID08
IslandFault
Islanding faulty
ID09
GridOVPInst
ant1
Grid instantaneous
voltage too high 1
ID10
GridOVPInst
ant2
Grid instantaneous
voltage too high 2
ID11
VGridLineFa
ult
Grid Line voltage Faulty
ID12
InvOVP
Inverter overvolatge
ID17
HwADFaultI
Grid
The grid current sampling
error
ID18
HwADFault
DCI
The DCI sampling error
ID19
HwADFault
VGrid(DC)
Grid voltage sampling
faulty（DC side）
ID20
HwADFault
VGrid(AC)
Grid voltage sampling
faulty（AC side）
ID21
GFCIDevice
Fault(DC)
Current leakage sampling
（DC side）
There are internal faults of inverter, turn OFF the
“DC switch”, wait for 5 minutes, then turn ON the
“DC switch”. Check whether the fault is rectified. If
no, please contact technical support.
ID22
GFCIDevice
Fault(AC)
Current leakage sampling
（AC side）
ID23
HwADFaultI
dcBranch
Current Branch sampling
faulty