Toshiba VF-A7 Setup by analog input signals RR terminal, Title Function Adjustment range 

7. 3. 1 Setup by analog input signals (RR terminal)

If a variable resistor (1-10 kΩ, 1/4 W) for setting up frequency is connected with the RR terminal, the inverter can be run and stopped with external commands.

For bringing this function into practice, connect a potentiometer to the terminals of PP, RR and

CCso as to divide the reference voltage (10 VDC) at the terminal PP and to input 0 to 10 VDC of divided voltage between the RR and CC terminals.

If analog voltage signal of 0 to 10 VDC is input between the terminals of RR and CC, frequency can be set up without connection of a potentiometer.

<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	～
	Analog input filter	(Disabled) to
		 (Max. filter capacity)
	RR reference point #1	～ [%]
	RR reference point #1 frequency	～ [Hz]
	RR reference point #2	～ [%]
	RR reference point #2 frequency	～ [Hz]
	RR reference point #1 rate	～ [%]
	RR reference point #2 rate	～ [%]

Default value	Setup value
(Terminal)	(Terminal)
(RR)	(RR)
	
－	－
()	()
	
	
	
	
	
	
	

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

Frequency setting signal

G-11