Baldor VS1MD instruction manual Sensorless Vector Control

8.6Sensorless Vector Control

Group	Display	Parameter Name	Setting	Range	Default	Unit
	H40	[Control Mode Selection]	3	0 to 3	0	-
	P30	[Motor Type Selection]	-	0.2 to 7.5	-	kW
	H32	[Rated Slip Frequency]	-	0 to 10	-	Hz
H - Function
	P32	[Motor Rated Current]	-	0.5 to 50	-	A
group 2
	H34	[Motor No Load Current]	-	0.1 to 20	-	A
	H42	[Stator Resistance (Rs)]	-	0 to 14	-	W
	H44	[Leakage Inductance (Lσ)]	-	0 to 300.00	-	mH
Function	F14	[Time for Energizing a Motor]	-	0.0 to 60.0	0.1	sec
group 1

If H40[Control mode Selection] is set to “3”, Sensorless vector control will become active.

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ATTENTION:Motor parameters should be measured for optimal performance. It is highly recommended H41 [Auto tuning] be done prior to operating via Sensorless vector control.

Ensure that the following parameters are entered correctly for optimal performance in Sensorless vector control.

P30: Select motor type connected to inverter output.

H32: Enter rated slip frequency based on motor nameplate RPM and rated frequency (See 10-6).

P32: Enter motor nameplate rated current.

H34: After removing the load, set H40[Control mode Selection] to “0” [V/F control] and run the motor at 60Hz. 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 a value equal to 40 to 50% of H33[Motor rated current] or the factory default.

H42, H44: Enter the value of the parameter measured during H41[Auto tuning] or the factory default.

F14: This parameter accelerates the motor after pre-exciting the motor for the set time. The amount of the pre-exciting current is set in H34[Motor No Load Current].

Directly enter the motor nameplate value except motor rating when 0.2kW is used.

Customizing for Your Application 8-13