LS ELECTRIC LSLV-L100 Series, Руководство пользователя

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Troubleshooting
348
Fault Remedy
If analog input is the command source and the speed (displayed at
DIS_01–DIS_03) is not the correct, ensure that one of the two analog
inputs (Ai1 or Ai2) has been set to “Speed Ref.”
(8) 0 V analog input
signals do not
stop the motor.
If AIO_01 (Ai1 define) is set to “Speed Ref“:
•
Adjust the percentage settings (%) at AIO_04 (Ai1 Out Y1) and
AIO_08 (Ai1-Out Y1). Adjust the values so that a 0 V input signal
generates a 0.0% output, and then press [Enter].
Check the setting for Ai2 input and adjust the setting
as required.
(9) The operation
speed follows
the reference
speed but over
time the motor
starts to overheat
or hunt, and the
speed
decreases.
Check the motor connections.
•
If the motor supports 220 V and 380 V input, ensure that the
connections are configured for the correct input voltage.
•
The motor will not operate if the number of poles is set
incorrectly. Power supply connection faults generally result in
motor damage. If you suspect the wrong voltage has been
connected, contact the manufacturer or supplier of the motor.
Refer to the terminal block section in this manual for the correct
motor wiring connections.
Confirm that the motor rating is set correctly.
•
Check the motor rating set at PAR_09. To confirm the rating,
refer to the rating plate on the motor.
Confirm that the motor parameters are set correctly.
•
Motor parameters vary for different manufacturers. The inverter’s
default motor parameter settings are based on HIGEN vector
motor specifications. For motors other than HIGEN vector
motors, enter parameter settings based on the specifications of
the motor to be used in the installation before operating it.