Toshiba VF-A7 instruction manual Basic parameters #2, Setting of switching terminals

6.4 Basic parameters #2

6.4.1Switching among V/f characteristics #1, #2, #3 and #4 from input terminal

 ：Base frequency #2

 ：Base frequency voltage #2

 ：Manual torque boost #2

 ：Motor overload protection level #2

 ：Base frequency #3

 ：Base frequency voltage #3













：Manual torque boost #3

：Motor overload protection level #3

：Base frequency #4

：Base frequency voltage #4

：Manual torque boost #4

：Motor overload protection level #4

・Function

These parameters is useful for - for example - when 4 motors are connected to a single inverter and thus they need to be switched from time to time to operate or there is a need to change V/f characteristics (#1 to #4).

1)Switching with input terminal

2)Switching by parameter settings => Refer to 6.29.6.

Note) The setting of the parameter  (V/f control mode selection) is valid only when V/f #1 is selected. If V/f #2, V/f #3 or V/f #4 is selected, V/f control is performed in constant torque mode. Do not switch motors when the parameter  (Motor control mode selection) is set at 7, 8 or 9. For parameters selected when changing V/f characteristics (1 to 4), refer to table on the next page.

■Setting of switching terminals

The V/f #1, V/f #2, V/f #3 and V/f #4 switching function is not yet assigned to any terminal. Therefore, it is necessary to assign them to unused terminals.

Ex.) Assigning the V/f switching #1 function to S1 and the V/f switching #2 function to S2.

Title Function

	Input terminal selection #5(S1)
	Input terminal selection #6(S2)

Adjustment range

～ ～

Setting value

: (V/f switching #1)

: (V/f switching #2)

Ｍ

S1：V/f switching #1

S2：V/f switching #2

CC

F-9