SOFAR 1.1K~3KTL
User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd
- 51 -
Event
List NO.
Event List
Name
Event List
description
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.
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.
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, overfrequency,
under-frequency protection points after
obtaining approval from the local electrical
grid operator.
ID02
GridUVP
The power grid
voltage is too low
ID03
GridOFP
The power grid
frequency is too
high
ID04
GridUFP
The power grid
frequency is too
low
ID05
PVUVP
The input voltage
is too low
Check whether too few PV modules are
series connected in a PV string, thus the
voltage(Vmp) of the PV string is lower than
the minimum operating voltage of inverter.
If yes, adjust the number of series
connected PV modules to increase the
voltage of the PV string to fit the input
voltage range of inverter. inverter
automatically returns to normal operating
status after correct adjustments.
ID09
PVOVP
The input voltage
is too high
Check whether too many PV modules are
series connected in a PV string, thus the
voltage(Voc) of the PV string is higher than
the maximum input voltage of inverter. If
yes, adjust the number of series connected
PV modules to decrease the voltage of the
PV string to fit the input voltage range of
inverter. inverter automatically returns to
normal operating status after correct
adjustments.
ID10 IpvUnbalance Input current is
not balanced
Check the input mode(parallel mode/
independent mode) setting of inverter
according to Section 6.3 (C) 6.Input Mode
ID11 PvConfigSetW Incorrect input
