Omron CS1W-RPT01, CVM1-CLK21 Connecting the Communications Cables, Using a Relay Terminal Block

Wiring Section 3-3

Using a Relay Terminal Block

			CVM1-CLK21			CS1W-CLK21-V1
						CJ1W-CLK21-V1
C200HW-CLK21	Relay	Terminating				(End node)
					Terminating
(End node)	Terminal	resistance	↓	TER SW	resistance	↓	TER SW
	Block (see	(OFF)	ON		(ON)	ON
	note 1.)					BD	H
BD H			BD H
BD L			BD L			BD	L

SHLD	TER	SHLD	SHLD
	SW

Terminating resistance ↓

(ON) ON

Ground

Note 1. Mounting and dismounting during communications is not possible for Re- lay Terminal Blocks connected to the nodes at the ends of the network (i.e.: the nodes with terminating resistance).

2.Use the recommended crimp terminals when connecting the cable’s signal lines or shield line to the terminal blocks. Short circuits can damage the Units.

Connecting the Communications Cables

Use crimp terminals when connecting communications cables to a Controller Link Unit. Use the following procedure to connect communications cables to a terminal block.

1,2,3... 1. Peel back the cover of the cable for about 50 mm without scratching the mesh of the shield. Do not peel too much because it may cause a short- circuit.

Approx. 50 mm

2.Twist the mesh of the shield to form a line.

3.Leave the tip of the wire created by twisting the shield exposed and cover the remaining section with a heat-shrinking tube.

Wire created by twisting the shield

Cover with a heat-shrinking tube

Exposed portion for crimp terminal connection

4.Remove enough of the cover from the signal lines to allow the crimp termi- nals to be connected, taking care not to damage the signal lines. Damage to the signal lines could cause the cable to break.

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