LS Industrial Systems SV-iV5 Series - Motor Parameters Setting; Par_07(Motor Rating Setting); Par_08(Motor Cap. Selection of User); Par_09(Motor Cooling Method)

6. Function Description
6-26
6.3.3 Motor parameters setting
1) PAR_07(Motor rating setting)
2) PAR_08(Motor cap. selection of user)
Select the motor rating. Its factory default value is the same as inverter capacity. If this is set, motor parameters are
automatically set. These are designed to fit for LG-OTIS vector motor. When other makers’ motor is used, program the
motor parameters properly. When using a motor having a rating not specified in this code, select “User Define”. Then,
PAR_08 will be displayed. Enter motor rating in this code. Then, enter motor parameters in the name plate and perform
Auto-tuning to gain proper parameters before use.
Code LCD display Description Setting range Unit Factory setting
PAR_07 Motor select Motor rating select
2.2 ~ 375.0
User Define
kW
Same as inverter
rating
PAR_08 UserMotorSel Motor cap. Selection of User 1.5 ~ 375.0 kW 5.5
3) PAR_09 (Motor cooling method)
Select the cooling method of the motor to use. ‘Motor cooling method’ is used to check if the motor is currently
overloaded or not. The self-cooled motor should be set to ‘Self-Cool’ and the forced cooled motor to ‘Forced-Cool’.
Code LCD display Description Setting range Unit Factory setting
PAR_09 Cooling Mtd Motor Cooling method
Forced-cool
Self-cool
Forced-cool
4) Encoder parameters (PAR_10 ~ 13: Pulse number of encoder, direction, error detection, LPF)
Enter the pulse number of encoder mounted on the motor shaft at the PAR_10 (the pulse number of
encoder). If PAR_12(Encoder error check enable) is set to ‘Yes’, Encoder error signal is detected and
then triggers fault alarm in the case of the wire cut or the miswiring. But, for open collector type
encoder, it is unable to detect the encoder error, therefore PAR_12 should be set to ‘No’. In case
the wiring for encoder (A, B phase) or inverter output (U, V, W) is changed, ‘Enc AB Chgd’ message is
shown during the auto-tuning operation. In this case, PAR_11 (Enc Dir Set) can be changed without
changing the wiring of pulse encoder. If encoder signal is mixed with electromagnetic noise signal, encoder
signal may be less affected by the electromagnetic noise signal by adjusting PAR_13 (Encoder LPF Time
Constant).
Code LCD display Description Setting range Factory setting
PAR_11 Enc Dir Set Encoder direction setting A Phase Lead/B Phase Lead A Phase Lead