72
Fault 203
Bus
voltage
undervoltage
the inverter
shut
down,
the
system
can
start
itself
after
the
shutdown
state
disappears.
Grid
power
undervoltage,
or PV array
low voltage, or
hardware
fault.
Disconnect
with
AC
input,
PV
input,
ensure
inverter
no
voltage,
use
multimeter
to
check the voltage
of grid power and
PV
array
separately.
Fault 206
Winding detection
fault
Inverter can
not
work.
Please check the
motor
wire
connector
when
inverter driving a
simple
phase
motor.
Note !
If you choose a pure photovoltaic version inverter, there is no need to check
the grid under voltage fault.
9.2 Maintenance
Please check and ensure the inverter is not charged with electricity before
any maintenance.
A routine examination must be done every half year:
●
Check the inverter for damaged or with deformation.
●
Check whether there is abnormal noise when inverter is running.