LS ELECTRIC LSLV-H100 Series, Руководство пользователя

Страница: 543 / 618

Troubleshooting
530
Type Cause Remedy
The set value for electronic thermal
protection is too low. Set an appropriate electronic thermal
level.
The inverter has been operated at
low speed for an extended duration. Replace the motor with a model that
supplies extra power to the cooling fan.
Out Phase
Open
The magnetic contactor on the
output side has a connection fault. Check the magnetic contactor on the
output side.
The output wiring is faulty. Check the output wiring.
In Phase
Open
The magnetic contactor on the input
side has a connection fault. Check the magnetic contactor on the
input side.
The input wiring is faulty. Check the input wiring.
The DC link capacitor needs to be
replaced.
Replace the DC link capacitor. Contact
the retailer or the LS ELECTRIC
customer service center.
Inverter OLT
The load is greater than the rated
motor capacity. Replace the motor and inverter with
models that have increased capacity.
The torque boost level is too high. Reduce the torque boost level.
Over Heat
There is a problem with the cooling
system. Determine if a foreign object is
obstructing the air inlet, outlet, or vent.
The inverter cooling fan has been
operated for an extended period.
Replace the cooling fan.
The ambient temperature is too high.
Keep the ambient temperature below
50
℃
.
Over
Current2
Output wiring is short-circuited. Check the output wiring.
There is a fault with the electronic
semiconductor (IGBT).
Do not operate the inverter. Contact the
retailer or the LS ELECTRIC customer
service center.
NTC Open
The ambient temperature is too low.
Keep the ambient temperature above -
10
℃
.
There is a fault with the internal
temperature sensor. Contact the retailer or the LS
ELECTRIC customer service center.
Fan Lock
/ In Fan
A foreign object is obstructing the
fan’s air vent. Remove the foreign object from the air
inlet or outlet.
The cooling fan needs to be
replaced.
Replace the cooling fan.