Omron NSJ CONTROLLERS - 03-2008 Operation Manual page 129

Wiring
Multi-drop Connection
with a Multi-drop
Connector
Note
98
A multi-drop connect also cannot be used with serial port B on the NSJ5-
TQ0@(B)-@@@ and NSJ5-SQ0@(B)-@@@. To use a multi-drop connection,
use a standard square connector and a T-branch Tap.
The following OMRON Multi-drop Connectors (sold separately) can be used
to make a multi-drop connection with Thick Cable.
• XW4B-05C4-T-D Straight Multi-drop Connector without Attachment
Screws
• XW4B-05C4-TF-D Straight Multi-drop Connector with Attachment Screws
• XW4G-05C4-TF-D Straight Multi-drop Clamp Connector with Attachment
Screws
(1) Before connecting the communications cables, turn OFF the power sup-
plies to the NSJ Controller and all Slaves, as well as the communications
power supplies.
(2) Use crimp terminals for wiring.
(3) Use the proper crimping tool and crimping methods when attaching crimp
terminals. Consult the manufacturer of the tools and terminals you are us-
ing. Inappropriate tools or methods can result in broken wires.
(4) Be extremely careful to wire all signal lines, power lines, and shielding
wire correctly.
(5) Tighten all set screws firmly. Tighten to a torque of between 0.25 and
0.3 N ⋅ m.
(6) Wire the signal lines, power lines, and shielding wire so that they do not
become disconnected during communications.
(7) Do not pull on the communications cables. They may become discon-
nected or wires may break.
(8) Allow a sufficient bending radius in cable turns so that communications
cables are not bent too sharply. The Cables may become disconnected
or wires may break if the cables are bent too far.
(9) Never place objects on top of the communications cables. They may
break.
(10) Double-check all wiring before turning ON the power supply.
Section 5-2