·
54
·
2. with low solar
energy, AC power
source cannot
complement
Fault202
AC input
over-current
Inverter shutdown
and will restart
automatically after
the fault
disappears
1
、
Pump motor
locked-rotor, or
damaged.
2
、
hardware failure
1. Check the pump
wiring and the pump for
normal operation;
2. Check if the
inverter output is
normal.
Fault203
BUS
low-voltage
Inverter shutdown
and will restart
automatically after
the fault
disappears
The grid voltage is
too low, or the
array voltage is too
low or a hardware
failure.
Disconnect the
grid and PV input
switch to ensure that
the inverter input has
no voltage. Check the
grid voltage and PV
voltage with a
multimeter.
Fault204
Shortage-pha
se input
Inverter shutdown
and will restart
automatically after
the fault
disappears
One or two phase
output cables of the
grid are not well
connected to the
inverter.
The power grid
connection is loose
and falls off.
Disconnect the
grid and PV input
switch to ensure that
the inverter input has
no voltage.
Check the wiring
on the input side of the
grid.
11.2 Troubleshooting for JNP22KH-V5~JNP55KH-V5
Stop condition and troubleshooting
