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CONNECTION DIAGRAM
Connect the unit as in the diagram below.
INPUT 0
10
+IN0
11
–IN0
1
+CJ0
2
–CJ0
INPUT 1
12
+IN1
13
–IN1
3
+CJ1
4
–CJ1
INPUT 2
15
+IN2
16
–IN2
6
+CJ2
7
–CJ2
INPUT 3
17
+IN3
18
–IN3
8
+CJ3
9
–CJ3
In order to improve EMC performance, bond the FG
terminal to ground.
Caution: FG terminal is NOT a protective conductor terminal.
Input Connection Example
T/C
+
+INn
–
–INn
+CJn
CJC
SENSOR
–CJn
• Unused Input Channels
Close across the unused input terminals as shown below.
(Choose K (CA) thermocouple for unused channels.)
+INn
Short
–INn
+CJn
CJC
SENSOR
–CJn
MASTER CONNECTION
MASTER CONNECTION
Host PC
TERMINATOR
Tx+/Rx+
Tx–/Rx–
Rx+
Rx–
Be sure to connect the terminating resistor included in the product package to the unit at both ends of transmission line.
The terminator must be connected across DA and DB.
The Host PC can be located other than at the extreme ends of transmission line.
4
DA
1
DB
5
DG
2
SLD
3
FG
6
24VDC
7
0V
SG
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
WIRING INSTRUCTIONS
■ SCREW TERMINAL
Torque: 0.5 N·m
■ SOLDERLESS TERMINAL mm (inch)
Refer to the drawing below for recommended ring tongue
terminal size. Spade tongue type is also applicable. Solder-
less terminal:
Applicable wire size: 0.25 to 1.65 mm2 (AWG 22 to 16)
Recommended manufacturer: Japan Solderless Terminal
MFG. Co., Ltd, Nichifu Co., Ltd
Remote Unit
DA
DB
DG
SLD
FG
R7M-TS4
3.3 (.13) max
mm (inch)
Remote Unit
TERMINATOR
DA
DB
DG
SLD
FG
EM-7803-B Rev.8
P. 3 / 7
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