Sofar HYD 5KTL-3PH - Page 100

HYD 5/6/8/10/15/20KTL-3PH USER MANUAL
98
ID006
OVRT
OVRT function is
faulty
If the alarm occurs
occasionally, the
possible cause is
that the electric
grid is abnormal
occasionally.
Inverter will
automatically
return 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 yes, please check
the AC circuit
breaker and AC
wiring of the
inverter.
If the grid
voltage/frequency
is NOT within the
acceptable range
and AC wiring is
correct, but 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.
ID007
LVRT
LVRT function is
faulty
ID008
IslandFault
Island protection
fault
ID009
GridOVPInstant1
Transient
overvoltage of
mains voltage 1
ID010
GridOVPInstant2
Transient
overvoltage of
mains voltage 2
ID011
VGridLineFault
Power grid line
voltage error
ID012
InvVoltFault
Inverter
overvoltage
Internal faults of