E6581160

QSINK (Negative) logic/SOURCE (Positive) logic (When an external power supply is used)

The PLC terminal is used to connect to an external power supply or to insulate a terminal from other input or output terminals. As for input terminals, turn the SW1 slide switch to the PLC position.

Examples of connections when an external power supply is used

Slide switch SW1:PLC

Sink (Negative) logic

24VDC

Common PLC

Output

F

24VDC

Slide switch SW1:PLC

Source (Positive) logic

24VDC

Input

Output

F

Common

PLC

Output 24VDC

Common OUT

2

Input

Output

Input

OUT

 

 

 

 

Input

NO

Common

NO

 

 

Programmable

Inverter

Programmable

Inverter

controller

 

controller

 

QSelecting the functions of the VIA and VIB terminals between analog input and contact input

The functions of the VIA and VIB terminals can be selected between analog input and contact input by changing parameter settings (H). (Factory default setting: Analog input)

When using these terminals as contact input terminals in a sink logic circuit, be sure to insert a resistor between the P24 and VIA terminals or between the P24 and VIB terminals. (Recommended resistance: 4.7KΩ-1/2W)

When using the VIA terminal as a contact input terminal, be sure to turn the VIA switch to the V position. If no resistor is inserted or the VIA slide switch is not turned to the V position, contact input will be left always ON, which is very dangerous.

Switch between analog input and contact input before connecting the terminals to the control circuit terminals. Otherwise the inverter or devices connected to it may be damaged.

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Toshiba VF-S11 manual Slide switch SW1PLC Source Positive logic