Larsen & Toubro C*2000 Series, User Manual

Page: 61 / 183

Chapter 5 – Function list
5-16
Cx2000 AC Drive
Function group 2
LED
display
Address
for
comm
Parameter
name
Range Description
Factory
defaults
Adj.
During
run
Page
H34 1322
No load
motor current
0.1
～
100.0[A]
Enter the current value detected when the
motor is rotating in rated rpm after the
load connected to the motor shaft is
removed. Enter the 50% of the rated
current value when it is difficult to
measure no Load Motor Current.
0.7 X 8-15
H36 1324
Motor
efficiency
50
～
100[%]
Enter the motor efficiency (see motor
nameplate).
72 X -
H37 1325
Load
inertia
rate
0
～
2
Select one of the following according to
motor inertia.
0 X 8-1
0 Less than 10 times
1 About 10 times
2 More than 10 times
H39 1327
Carrier
frequency
1.0
～
15.0
[kHz]
This parameter affects the audible sound
of the motor, noise emission from the
inverter, inverter temp, and leakage
current. If the set value is higher, the
inverter sound is quieter but the noise
from the inverter and leakage current will
become greater.
5.0
1)
O 8-20
3.0
1)
H40 1328
Control mode
select
0 ～ 3
0 V/F Control}
0 X
7-17
1 Slip compensation control 8-8
2
3 Sensorless vector control 8-15
H41 1329
Auto
tuning
0 ～ 1
If this parameter is set to 1, it
automatically measures parameters of
H42 and H44.
0 X
8-14 H42 132A
Stator
resistance (Rs)
0.000
～
56.000[ ]
This is the value of the motor stator
resistance.
- X
H44 132C
Leakage
inductance (L )
0.00
～
600.00
[mH]
This is leakage inductance of the stator
and rotor of the motor.
- X
1)
:Default carrier frequency of 0.1~3.7KW series is 5KHz
， and default value of 5.5 ～ 7.5KW series is 3 KHz.