Wiring Instructions; Communication Cable Connections - M-system R9MWTU Instruction Manual

WIRING INSTRUCTIONS

■ SOLDERLESS TERMINAL
Refer to the drawing below for recommended ring tongue terminal size. Spade tongue type is also applicable.
• M3 Screw (Modbus and current input)
Applicable wire size: 0.25 to 1.65 mm
Torque: 0.5 N∙m

COMMUNICATION CABLE CONNECTIONS

■ MASTER CONNECTION
Host PC
TERMINATOR
Tx+/Rx+
Tx − /Rx −
SG
Rx+
Rx −
Be sure to connect the terminating resistor across DA and DB at both ends of communication line.
When this unit is located at an end, turn the terminating resistor SW ON.
The Host PC can be located at not only both ends but also any node of the of communication line.
(AWG22 to 16)
2
3.3 max. (.13)
mm (inch)
Remote Unit
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
• M3.5 Screw (auxiliary power and voltage input)
Applicable wire size: 1.04 to 2.63 mm
Torque: 0.8 N∙m
DA
DB
DG
SLD
FE
R9MWTU
(AWG16 to 14)
2
3.8 max. (.15)
mm (inch)
Remote Unit
TERMINATOR
DA
DB
DG
SLD
FE
EM-6221 Rev.9 P. 7 / 20