Toshiba VF-A7 Frequency setting, Speed setting mode selection parameter  at 

■Frequency setting

１）Setting the operation frequency with an external volume control

By default, the VF-A7 inverter has been set to a mode in which an external volume control can be used for setting the operation frequency.

MAX

MIN

ＰＰ

ＲＲ

ＣＣ

Frequency setting ： with potentiometer

★Volume control

The operation frequency by potentiometer (1 to 10kΩ1/4 W) for setting

Refer to 7.3 for details of adjustment.

80Hz
Frequency
0	MAX
MIN

[Parameter setting]

Speed setting mode selection parameter  at .

(There is no need to set this parameter before the first use after purchase.)

２）Setting the frequency by voltage signals (0 to 10 V)

＋ ＲＲ

－ ＣＣ

★Voltage signal

	Voltage signals (0 to 10 V) for setting t
	he operation frequency
：Voltage signal 0 to 10Vdc	Refer to 7.3 for details of adjustment.

80Hz

周波数

Frequency

0

[Parameter setting]

0Vdc10Vdc

Speed setting mode selection parameter  at .

(There is no need to set this parameter before the first use after purchase.)

３）Setting the frequency by a current signal (4 to 20 mA)

			★Current signal
			Current signals (4 to 20 mA) for setting the
			operation frequency.
＋	ＩＩ		Refer to 7.3 for details of adjustment.
		：Current signal 4 to 20mAdc
	ＣＣ		80Hz
			Frequency
－
	[Parameter	setting]	0	4mAdc	20mAdc

Speed setting mode selection parameter  at .

This setting cannot be made when the terminal VI is used.

C-4