LG Electronics C Series manual ⎛ rpm ⋅ P ⎞

Chapter 7. Function list

Function group 2

LED

Parameter

Min/Max

Description

Factory

Adjustable

Page

display

Name

Range

defaults

during run

H31

[Number of

2/12

ƒ

This setting is displayed via rPM in

-

X

motor poles]

drive group.

H32

[Rated slip

0/10

⎛ rpm ⋅ P ⎞

X

frequency]

[Hz]

f s

= f r − ⎜

⎟

2)

120

ƒ

⎝

⎠

Automatically

Where,

fs = Rated slip frequency

set

fr = Rated frequency

rpm = Motor nameplate RPM

P = Number of Motor poles

H33

[Motor rated

1.0/20

ƒ

Enter motor rated current on the

-

X

current]

[A]

nameplate.

H34

[No Load

0.1/12

ƒ

Enter the current value detected

-

X

10-6

Motor

[A]

when the motor is rotating in rated rpm

Current]

after the load connected to the motor

shaft is removed.

ƒ Enter the 50% of

the rated current

value when it is difficult to measure H34

- [No Load Motor Current].

H36

[Motor

50/100

ƒ

Enter the motor efficiency (see motor

-

X

efficiency]

[%]

nameplate).

H37

[Load inertia

0/2

ƒ

Select one of the following according

0

X

10-6

rate]

to motor inertia.

0

Less than 10 times that of

motor inertia

1

About 10 times that of motor

inertia

2

More than 10 times that of

motor inertia

H39

[Carrier

1/15

ƒ

This

parameter affects the audible

3

O

10-

frequency

[kHz]

sound of the motor, noise emission from

16

select]

the inverter, inverter temp, and leakage

current. If the value is set higher, the

inverter sound is quieter but the noise

from the inverter and leakage current will

become greater.

H40

[Control

0/3

0

{Volts/frequency Control}

0

X

9-15

mode select]

1

{Slip compensation control}

10-6

2

{PID Feedback control}

10-8

3

{Sensorless vector control}

10-11

H41

[Auto tuning]

0/1

ƒ

If this

parameter is set to 1, it

0

X

10-

automatically measures parameters of

10

the H42 and H43.

H42

[Stator

0/5.0[Ω]

ƒ

This is the value of the motor stator

-

X

resistance

resistance.

(Rs)]

H44

[Leakage

0/300.0

ƒ

This is leakage inductance of the

-

X

inductance

[mH]

stator and rotor of the motor.

(Lσ)]

H45

Sensorless P

0/32767

ƒ

P gain for Sensorless control

1000

O

1)

gain

H46

Sensorless I

ƒ

I gain for Sensorless control

100

O

gain

H50

[PID

0/1

0

Terminal I input (0 ~ 20 mA)

0

X

10-8

Feedback

1

Terminal V1 input (0 ~ 10 V)

select]

1): Set H40 to 2 (PID control) or 3(Sensorless vector control) to display these parameters.

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