LS ELECTRIC LSLV-H100 Series, User Manual

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157
Learning Advanced Features
5.7 Slip Compensation Operation
Slip refers to the variation between the setting frequency (synchronous speed) and motor
rotation speed. As the load increases there can be variations between the setting frequency
and motor rotation speed. Slip compensation is used for loads that require compensation of
these speed variations.
Group Code Name LCD Display Parameter Setting Setting Range Unit
DRV
09 Control Mode
Control
Mode
1
Slip
Compen
- -
14 Motor Capacity
Motor
Capacity
2 5.5 kW 0
–20
-
BAS
11
Number of
motor poles Pole
Number
4 2
–48
-
12
Rated slip
speed
Rated Slip 40 (5.5 kW based) 0
–3000
Rp
m
13
Rated motor
current
Rated Curr 3.6 (5.5 kW based) 1.0
–1000.0
A
14
Motor no-load
current
Noload Curr 1.6 (5.5 kW based) 0.5
–1000.0
A
16
Motor
efficiency
Efficiency 72 (5.5 kW based) 70
–100
%
Slip Compensation Operation Setting Details
Code Description
DRV-09 Control Mode
Set DRV-
09 to ‘2 (Slip Compen)’ to carry out the slip compensation
operation.
DRV-14 Motor Capacity Set the capacity of the motor connected to the inverter.
BAS-11 Pole Number Enter the number of poles from the motor rating plate.
BAS-12 Rated Slip
Enter the number of rated rotations from the motor rating plate.
𝑓
𝑠
= 𝑓
𝑟
−
𝑅𝑝𝑚 × 𝑃
120
𝑓
𝑠
= Rated slip frequency
𝑓
𝑟
= Rated frequency
𝑅𝑝𝑚
= Number of the rated motor rotations
𝑃
=
Number of motor poles
BAS-13 Rated Curr Enter the rated current from the motor rating plate.