SHENZHEN INVT ELECTRIC CO., LTD. CHV160 Operation Manual
86
rectification bridge is burst out, ask for service.
Check the CHARGE light. If the light is not bright, generally the failure is at the
rectification bridge or at the buffer resistor. If the light is bright, the failure may be at
the switching power supply. Ask for service.
Power supply air-break switch trip-off when power on:
Examine whether or not input power supply is grounded or short circuit failure, and
eliminate the problem.
Examine whether the rectification bridge has been burnt or not. If it is damaged, ask
for service.
Motor doesn
t move while inverter is put in operation
Inspect if there is balanced three-phase output among U,V,W. If there is, the motor
circuit or itself is damaged, or the motor is mechanically locked. Please clear it off.
There is output but uneven among the three phases, the inverter drive board or the
output module is supposed to be damaged, ask for service.
If there is no output voltage, it may be damage of inverter drive board or the output
module, ask for service.
Inverter displays in normal condition, but the power supply air switch trips off after
put in operation:
Examine if there is short circuit of phases between output modules. If there is, ask for
service.
Examine if there is short circuit or ground between motor wires. If there is, eliminate it.
If the trip-off happens occasionally and the distance between motor and inverter is far,
it should be considered to add output AC reactor.
