R7M-DC8C
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: +81(6)6659-8201 Fax: +81(6)6659-8510 E-mail: [email protected]
EM-7803-U Rev.4 P. 3 / 7
WIRING INSTRUCTIONS
■
SCREW TERMINAL
Torque
: 0.5 N·m
■
SOLDERLESS TERMINAL
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 mm
2
(AWG 22 to 16)
Recommended manufacturer: Japan Solderless Terminal
MFG. Co., Ltd, Nichifu Co., Ltd
6 (.24) max
3.3 (.13) max
mm (inch)
CONNECTION DIAGRAM
Connect the unit as in the diagram below.
4 Points / common
10
14
1
2
5
11
+24V
Y0
0V
Y3
COM0
COM0
+
–
+
–
18
6
9
15
Y4
Y7
COM1
COM1
+
–
+
–
8 Points / common
10
14
1
2
5
11
+24V
24V DC
Y0
0V
+
–
Y3
15
Y4
18
Y7
COM0
COM0
6
9
COM1
COM1
+
–
+
–
24V DC
+
–
5
2
6
4
7
13
8
9
14
12
15
11
16
17
18
COM0
COM0
COM0
Y0
Y1
Y2
Y3
COM0
COM1
COM1
COM1
Y4
Y5
Y6
Y7
COM1
3
4
1
2
5
3
FG
6
7
24 V DC
0 V
SLD
DG
DB
DA
10
1
0 V
+24 V
■
Output Connection Example
In order to improve EMC performance, bond the FG
terminal to ground.
Caution: FG terminal is NOT a protective conductor terminal.
MASTER CONNECTION
■
MASTER CONNECTION
Tx+/Rx+
Tx–/Rx–
SG
Rx+
Rx–
Host PC
DA
DB
DG
SLD
FG
Remote Unit
DA
DB
DG
SLD
FG
Remote Unit
TERMINATOR
TERMINATOR
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.
