Jntech JNP2K2L-V5 - Maintenance

85
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 204
Grid power
phase lose
Inverter stop
working,
stop state
disappear,
system will
start
automaticall
y
A phase or
two-phase
output cable of
grid power is
not well
connected with
inverter. The
grid power
connection is
loose and falls
off.
Disconnect the
grid power and PV
input switch to
ensure that there
is no voltage at the
input of the
inverter, and
check the wiring at
the input side of
the grid
9.2 Maintenance
Please check and ensure the inverter is not charged with electricity before
any maintenance.