LSIS G100, Operation Manual

Page: 304 / 343

Items Cause Remedy
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
command is incorrect. Check the input option for the
frequency command.
The input voltage or current for the
frequency command is incorrect. Check the input voltage or current
for the frequency command.
The PNP/NPN mode is selected
incorrectly.
Check the PNP/NPN mode setting.
The frequency command value is
too low.
Check the frequency command
and input a value above the
minimum frequency.
The [STOP/RESET] key is pressed.
Check that the stoppage is normal,
if so resume operation normally.
Motor torque is too low.
Change the operation modes (V/F,
IMSensorless). If the fault remains,
replace the inverter with a model
with increased capacity.
The motor
rotates in the
opposite
direction to the
command.
The wiring for the motor output cable
is incorrect.
Determine if the cable on the
output side is wired correctly to the
phase (U/V/W) of the motor.
The signal connection between the
control circuit terminal
(forward/reverse rotation) of the
inverter and the forward/reverse
rotation signal on the control panel
side is incorrect.
Check the forward/reverse rotation
wiring.
The motor only
rotates in one
direction.
Reverse rotation prevention is
selected. Remove the reverse rotation
prevention.
The reverse rotation signal is not
provided, even when a 3-wire
sequence is selected. Check the input signal associated
with the 3-wire operation and
adjust as necessary.
The motor is
overheating.
The load is too high.
Reduce the load. Increase
Acc/Dec time.
Check the motor parameters and
set the correct values.
Replace the motor and the inverter
with models with appropriate
capacity for the load.