Toshiba VF-A7 instruction manual Setup by analog input signals VI/II terminal, 10V VI terminal

7. 3. 2 Setup by analog input signals (VI/II terminal)

Connect current signal (4 to 20 mADC) to the terminal II or voltage signal (0 to 10 VDC) to the terminal VI so that the inverter can be run and stopped with external commands.

<Related parameters>

Title	Function	Adjustment range
	Operation command mode selection	～
	Speed setting mode selection	～
	FM terminal meter selection	～
	FM terminal meter adjustment	－
	Reference priority selection	～
	VI/II reference point #1	～ [%]
	VI/II reference point #1 frequency	～ [Hz]
	VI/II reference point #2	～ [%]
	VI/II reference point #2 frequency	～ [Hz]
	VI/II reference point #1 rate	～ [%]
	VI/II reference point #2 rate	～ [%]
	Analog input filter	(Disabled) to
		 (Max. filter capacity)

Default value (Terminal) (RR)



－

()    







Setup value

(Terminal)

(VI/II)



－

()

※













※: Set "" when current signal (4 to 20 mADC) is connected to the terminal II, or set "" when voltage signal (0 to 10 VDC) is connected to the terminal VI.

Power supply

				■Run/stop setup
MCCB	CHARGE		Motor		To control switching between forward
					rotation (F) and reverse rotation (R),
R/L1	ＶＦ－Ａ７	U/T1
			IM		run and stop by external commands.
S/L2		V/T2
				■Setup of frequency setting signal and
T/L3		W/T3
					running frequency characteristic
		RES			To set up frequency setting signal and
					characteristic of running frequency that
		S1			are to be externally input to the terminal
		S2			VI or II.
FLA					Frequency characteristic is set up at
		S3			the two points of VI/II reference point #1
FLB
		S4			()/frequency(), VI/II
	FL				reference point #2() /frequency
FLC					().
		ST
				■Connection and calibration of
P24		F	Forward rotation		frequency meter
		R	Reverse rotation		Connect a 1 mAdc full-scale DC current
					meter, 7.5 V dc full-scale DC voltmeter
OUT1					or rectifier type AC voltmeter. For
		FM	Frequency		calibration of the meter, refer to the
OUT2					section 5.4.
			meter		[Hz]
		AM
		FP						Point 2
			Running frequency			Point 1
G/E		CC
CC	RX VI II RR PP
		＋						[%]
			＊０～１０Ｖｄ			
								
		－			0%	20%		100%
		＋			(0	～ 4	～	20mA)II terminal
		－	＊４～２０ｍＡｄｃ		(0	～		10V )VI terminal
						Frequency setting signal

＊The terminals VI and II cannot be used together at a time. Be sure to use either of them.

G-12