6.3.3 Motor parameters setting
1) PAR_07(Motor rating setting)
Company
Capacity (Kw)
Ex) Company 1
3.7kW, 6.2kW, 6.5kW, 7.1kW, 12.5kW, 14.1Kw
Ex) Company 2
3.7kW, 6.2kW, 6.5kW, 7.5kW, 11kW, 15Kw
Ex) Company 3
13.3kw
Ex) Company 4
6.7kw
* Advise to compare and validate set up values with motor ratings’ plate, since PAR_17, 18, 19, 20, 21, 22, 28, and 30
are to change automatically upon motor capacity selections.
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 ~ 220.0
User Define
kW
Same as inverter
rating
PAR_08
UserMotorSel
Motor cap. Selection of User
1.5 ~ 220.0
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