REFUSOL 20K-2T - Page 60

REFUsol 20K-2T (853P020.200)
User manual
- 55 -
List 8-1 Even list
Even
List ID
Event List Name
Even List
Description
Even Reason & Solution
ID01
GridOVP
The power grid
voltage is too
high
If the alarm occurs occasionally, the
possible cause is that the electric grid
is abnormal occasionally. inverter
automatically returns to normal
operating status when the electric
grid’s back to normal.
ID02
GridUVP
The power grid
voltage is too low
If the alarm occurs frequently, check
whether the grid voltage/frequency
is within the acceptable range. If no,
contact technical support. If yes,
check the AC circuit breaker and AC
wiring of the inverter.
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
ID07
LVRT
LVRT faulty