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TERMINAL CONNECTIONS
Connect the unit as in the diagram below.
■ EXTERNAL DIMENSIONS unit: mm (inch)
■ CONNECTION DIAGRAM
INTERNAL BUS A
* INTERNAL BUS B
INTERNAL POWER
*For dual redundant communication.
27.5 (1.08)
1
20–M3
11
2
SCREW
12
3
13
4
14
5
15
6
16
7
17
8
18
9
19
10
TERMINAL
20
COVER
1
1
L
Do 1
2
L
Do 2
3
L
Do 3
4
L
Do 4
5
L
Do 5
6
L
Do 6
7
L
Do 7
8
L
Do 8
11
L
Do 9
12
L
Do 10
13
L
Do 11
14
L
Do 12
15
L
Do 13
16
L
Do 14
17
L
Do 15
18
L
Do 16
9
COM
10
COM
19
COM
20
COM
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
109 (4.29)
WIRING INSTRUCTIONS
■ SCREEN TERMINAL
Torque: 0.5 N·m
■ SOLDERLESS TERMINAL unit: mm (inch)
Refer to the drawing below for recommended ring tongue
terminal size. Spade tongue type is also applicable. Solder-
less terminals with insulation sleeve do not fit.
Applicable wire size: 0.3 – 0.5 mm
Recommended manufacturer: Japan Solderless Terminal
MFG. Co., Ltd., Nichifu Co., Ltd.
3 (.12) max.
4 min.
(.16)
12 (.47) max.
FUNCTIONS
■ OUTPUT HOLD or OUTPUT OFF
In normal conditions, the module outputs the signal from
the preferred bus A.
When an error is detected, the output is switched to the
data from the bus B.
• Output Hold
If both are in error, the module holds the signal and
stands by until one of the communications recovers.
• Output OFF
If both are in error, the module outputs OFF signals and
stands by until one of the communications recovers.
At the startup, it outputs OFF until the communication is
established and normal data is received.
R3-PD16B
POSITIONING
GUIDE
2
3.2 (.13) dia.
EM-8390 Rev.2 P. 10 / 10
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