Santerno Sinus M, User Manual

Page: 110 / 219

10-10
10.6 Slip compensation
Group Display Parameter Name Setting Range Default Unit
Function
group 2
H30
[Motor type select]
- 0.2 ~ 7.5 7.5
H31
[Number of motor poles] -
2 ~ 12 4
H32
[Rated slip frequency]
- 0 ~ 10 2.33 Hz
H33
[Motor rated current]
- 0.5 ~ 50 26.3 A
H34
[Motor No Load Current] -
0.1 ~ 20 11.0 A
H36
[Motor efficiency]
- 50 ~ 100 87 %
H37
[Load inertia rate]
- 0 ~ 2 0
H40 [Control mode select] 1
0 ~ 3
0

Set H40 – [Control mode select] to 1 {Slip compensation}.

This function allows the motor to run in constant speed by compensating slip in an
induction motor.

H30: Set the motor type connected to the inverter output side.
H30 [Motor type select] 0.2
0.2kW
~
5.5 5.5kW
7.5 7.5kW

H31: Enter the pole number as shown on the Motor nameplate.

H32: Enter the slip frequency in accordance with the following formula and motor nameplate.






×
− =
120
P rpm
f f
r s
Where,
s
f
= Rated slip frequency
r
f
= Rated frequency
rpm
= Motor rated RPM
P
= Motor pole number
Ex) Rated freq.: 60Hz, Rated RPM: 1740rpm, Poles: 4,
Hz f
s
2
120
4 1740
60
=






×
− =