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TERMINAL CONNECTIONS
Connect the unit as in the diagram below.
■ EXTERNAL DIMENSIONS unit: mm (inch)
■ CONNECTION DIAGRAM
20A/20B
+
INPUT 1 2W-XMTR (EXC)
18A/18B
–
16A/16B
+
INPUT 2 2W-XMTR (EXC)
14A/14B
–
12A/12B
+
INPUT 3 2W-XMTR (EXC)
10A/10B
–
8A/8B
+
INPUT 4 2W-XMTR (EXC)
6A/6B
–
19A/19B
+
INPUT 5 2W-XMTR (EXC)
17A/17B
–
15A/15B
+
INPUT 6 2W-XMTR (EXC)
13A/13B
–
11A/11B
+
INPUT 7 2W-XMTR (EXC)
9A/9B
–
7A/7B
+
INPUT 8 2W-XMTR (EXC)
5A/5B
–
3A/3B
4A/4B
SENSOR
EXCITION
1A/1B
24V DC
2A/2B
*For dual redundant communication.
Caution
Input value is less than -15% for the open input terminals, then the host PC/PLC recognizes
and configures this as error. The unused channels can be specified and configured with the
PC Configurator Software (model: R3CON).
27.5 (1.08)
INTERNAL BUS A
INTERNAL BUS B*
INTERNAL POWER
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: +81(6)6659-8201 Fax: +81(6)6659-8510 E-mail: info@m-system.co.jp
110 (4.33)
INPUT CONNECTOR (40-pin)
PIN NO.
ASSIGNMENT
1A
GND
2A
GND
3A
+24V
4A
+24V
5A
−IN8
6A
−IN4
7A
+IN8
8A
+IN4
9A
−IN7
10A
−IN3
11A
+IN7
12A
+IN3
13A
−IN6
14A
−IN2
15A
+IN6
16A
+IN2
17A
−IN5
18A
−IN1
19A
+IN5
20A
+IN1
R3Y-DS8N
POSITIONING
GUIDE
PIN NO.
ASSIGNMENT
1B
GND
2B
GND
3B
+24V
4B
+24V
5B
−IN8
6B
−IN4
7B
+IN8
8B
+IN4
9B
−IN7
10B
−IN3
11B
+IN7
12B
+IN3
13B
−IN6
14B
−IN2
15B
+IN6
16B
+IN2
17B
−IN5
18B
−IN1
19B
+IN5
20B
+IN1
EM-8968 Rev.3 P. 3 / 3
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