LSIS LSLV-S100 - Troubleshooting Other Faults

Troubleshooting
386
Type
Cause
Remedy
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 LSIS
customer service center.
FAN Trip /
FAN Warning
A foreign object is obstructing the fan’s
air vent.
Remove the foreign object from the air
inlet or outlet.
The fan connector is not connected.
Connect the fan connector.
The cooling fan needs to be replaced.
Replace the cooling fan.
9.3 Troubleshooting Other Faults
When a fault other than those identified as fault trips or warnings occurs, refer to the
following table for possible causes and remedies.
Type
Cause
Remedy
Parameters
cannot be set.
The inverter is in operation (driving
mode).
Stop the inverter to change to
program mode and set the
parameter.
The parameter access is incorrect.
Check the correct parameter access
level and set the parameter.
The password is incorrect.
Check the password, disable the
parameter lock and set the
parameter.
Low voltage is detected.
Check the power input to resolve the
low voltage and set the parameter.
The motor does
not rotate.
The frequency command source is set
incorrectly.
Check the frequency command
source setting.
The operation command source is set
incorrectly.
Check the operation command
source setting.
Power is not supplied to the terminal
R/S/T.
Check the terminal connections
R/S/T and U/V/W.
The charge lamp is turned off.
Turn on the inverter.
The operation command is off.
Turn on the operation command
(RUN).
The motor is locked.
Unlock the motor or lower the load
level.
The load is too high.
Operate the motor independently.
An emergency stop signal is input.
Reset the emergency stop signal.
The wiring for the control circuit
terminal is incorrect.
Check the wiring for the control circuit
terminal.
The input option for the frequency
Check the input option for the