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Chapter 3 Installation and Wiring
3-8
3.3.3 Wiring for Diagnostic Digital Input module (XGI-D21D)
Broken
Wire
Detection
Circuit
R
DC24V
R
R
Input
diagnosis
Photo-Coupler
Photo-Coupler
TB9
TB1
R
TB8
10kΩ 1/4W
Note
In order to detect broken wire, you need to connect a diagnostic resistor in parallel with the input signal device.
Please use
10KΩ 1/4W
diagnostic resistance value.
Terminal
block
Contact
XGI-D21D
1
2
3
4
5
6
7
8
9
01
02
03
00
04
05
06
07
COM
+ -
24 Vd.c
8mA
R
R
0 1 2 3 4 5 6 7
8 9 A B C D E F
IN
DIAG
TB1
Input 0
TB2
Input 1
TB3
Input 2
TB4
Input 3
TB5
Input 4
TB6
Input 5
TB7
Input 6
TB8
Input 7
TB9
COM