A7

j

A7

j

34

Switches with Component-adding Provision

To add diodes or resistors to Thumbwheel Switch circuits, use models with terminals that allocate component-adding provisions (e.g., output

codes 07, 19, 55, etc.).

Examples

Circuit example

Circuit board

Application example

For

mounting

diodes

Diode

Thumbwheel Switch

Note:

Use

the

terminal

marked with the as-

terisk * if the common

terminal needs no re-

sistor or diode.

Diode

Thumbwheel Switch

(e.g., A7PS-207)

For Programmable Controller inputs (OMRON C500 or C2000H)

Thumbwheel Switch

24

VDC

programmable

controller

(+24 V)

(0V)

+24 VDC

For

mounting

resistors

Thumbwheel Switch

Thumbwheel Switch

(e.g., A7PS-219)

Resistor

As a voltage divider or digital variable resistor

Output

Input

Thumbwheel

Switch