7-3 Cable wiring procedure in control panel

(1)Fixing of the cable

In order not to put any force on the cable and the JW-21MN, fasten the cable to an line nearby input of a control panel or a "T" branch point to the JW- 21MN using saddles etc.

(2)Extra length of cable

Provide an extra length of the cable of 2 to 3 m inside a control panel for easier processing of the cable end and easier wiring when changing module positions.

Saddle

JW-21MN

Saddle

An extra length of cable of 2 to 3 m

7

(3)Connection to the JW-21MN

The connector to the JW-21MN should be turned right to secure locking, not merely inserted.

(4)Insulation cover

When the connector touches with a high voltage section or external enclosures, communication errors may occur. Make sure to install an insulation cover.

Communication cable connection connector

"T" jacket

(insulation cover)

"L" jacket

(insulation cover)

(5)Grounding of power supply module (JW-22PU/31PU)

Make sure to use a class-3 grounding to connect the GND terminal of the power supply module.

-If the power supply module is not grounded, the JW-21MN cannot conduct with the ground after turning "ON" the shield ground switch.

When using a JW-31PU AC power supply module

 

POWER

L

 

Power input terminal for

 

INPUT

 

100-120VAC

85 to 132 VAC

 

 

N

Class-3

SHORT

GND (ground) terminal

grounding

GND

 

 

 

 

HALT

 

 

OUTPUT

 

 

100-120VAC

Halt output terminal

 

(24VDC)

 

 

 

1A

 

7-2