Toshiba Single-phase 200V class 0.2 to 2.2kW Base frequency, Selecting control mode

E6581090

5.8Base frequency

 : Base frequency 1 (Hz)

•Function

Sets the base frequency in conformance with load specifications or the motor's rated frequency.

Note: This is an important parameter that determines the constant torque control area.

Base frequency voltage



Output voltage [V]

0

	* A voltage higher than the voltage
	set with  is applied to the
	motor at a frequency higher than
	the base frequency set with vl,
	even if the  parameter is	5
	set at a voltage lower than the
	input voltage.

Output frequency (Hz)

■Parameter setting

Title	Function	Adjustment range	Default setting
	Base frequency 1 (Hz)	25～200 (Hz)	*
When operating the inverter with = selected, change the setting of  to the value printed
on the rating plate, in addition to the setting of .

*The value is changed according to the set-up parameter condition. (VFNC1 (S)-□□□□P□-W type)

60 [Hz] for VFNC1 (S)-□□□□P□type.

5.9Selecting control mode

 : V/F control mode selection

 : Torque boost 1 (%)

 : Slip frequency gain

•Function

With VF-nC1, the V/F controls shown below can be selected.

xV/F constant

xVector control

*When torque is not produced enough at low speeds, adjust the rotational speed using the torque boost parameter. To correct the slip frequency, use the  parameter (slip correction gain).

■Parameter setting

Title	Function	Adjustment range	Default setting
	V/F control mode	0 (1,2): V/F constant	0
	selection	3: Sensorless vector control

Follow the steps below to set the pt parameter.

(Example: Setting the V/F control mode selection parameter () to 3 (Vector control))

Key operated	LED display	Operation
		Displays the operation frequency (operation stopped).
		(When standard monitor display selection = is set
		to 0 [operation frequency]).
ENT		The first basic parameter "History ()" is displayed.

▲Switch to the control mode selection parameter () by  pressing the △ key.

ENT		Press the ENTER key to display the parameter setting.
		(Default setting: 0 (V/F))

▲Change the setting to 3 (Vector control) by pressing the △  key.

ENT	⇔	Press the ENTER key to save the new setting.  and the
		parameter setting “3” are displayed alternately.
		E-7