Santerno Sinus M, User Manual

Page: 126 / 219

10-26
10.9 Sensorless Vector Control
Group Display Parameter Name Setting Range Default Unit
Function
group 2
H40 [Control mode select] 3
0 ~ 3 0 -
H30
[Motor type select]
- 0.2 ~ 7.5 - kW
H32
[Rated
slip frequency]
- 0 ~ 10 - Hz
H33
[Motor rated current]
- 0.5 ~ 50 - A
H34
[Motor No Load Current] -
0.1 ~ 20 - A
H42
[Stator resistance (Rs)]
- 0 ~ 14 -
Ω
H44
[Leakage inductance
(L σ )]
- 0~300.00 - mH
Function
group 1
F14
[Time for energizing a
motor]
- 0.0~60.0 1.0 sec

If H40 – [Control mode select] is set to 3, Sensorless vector control will become active.
CAUTION:
Motor parameters should be measured for high performance. It is highly recommended H41 –
[Auto tuning] be done prior to proceeding operation via Sensorless vector control.

Ensure that the following parameters are entered correctly for high performance in Sensorless vector
control.

H30: Select motor type connected to inverter output.

H32: Enter rated slip frequency, (See chapter 10-6).

H33: Enter motor nameplate rated current.

H34: After removing the load, select H40 – [Control mode select] to 0 {V/F control} and run the motor at
50Hz. Enter the current displayed in Cur-[Output current] as motor no load current. If it is difficult to
remove the load from the motor shaft, enter the value either 40 to 50% of the H33 – [Motor rated current]
or the factory default.

In case that torque ripple occurs at high speed, lower H34 [No load current] to 30%.

H42, H44: Enter the value of the parameter measured during H41 – [Auto tuning] or the factory default.

F14: Is the set time needed to magnetize which will run after this time. A low value set in F14 reduce the
output available torque. The amount of the pre-exciting current is set in H34- [Motor no load current].

Directly enter the motor nameplate values except when 0.2kW motor is used.