Chapter 5: Installation

Installation procedure

Turn "OFF" the power supply to the JW20/JW20H/JW30H.

Set the mode switch, the termination resistance switch, and the shield ground switch on the rear side of the JW-21MN.

(See page 11-2 to 11-4 for settings)

(Rear view of the JW-21MN)

5

Applicable screwdriver

Mode switch

Termination resistance switch

MODE

ON

LT

OFF

ON

Shield ground switch

LG

OFF

 

2 to 3mm

0.5mm

Hang the module retention rib of the JW-21MN on the retention rib insertion hole of the JW20/ JW20H/JW30H's basic rack panel, and press in the JW-21MN. Then tighten the module retention screws at the top of the JW-21MN module using a Phillips screwdriver.

Partition plate or control panel Basic rack panel Module insertion guide

JW-21MN

Remarks

(Installation example)

Ventilation hole

 

Module retention screw Basic rack panel

Power supply module

Module retention rib insertion hole Phillips

Module retention rib

screwdriver

 

 

JW-21MN

Control module

JW-21CU/22CU, JW-31CUH/32CUH/33CUH

JW-31CUH1/32CUH1

JW-33CUH1/33CUH2/33CUH3

-The JW-21MN cannot be installed on the expansion rack panel.

-Number of installations of the JW-21MN on the same JW20/JW20H/JW30H basic rack panel should be within 7 in total including other option module (including JW-21MN). Installation of more than seven modules of the JW-21MN will not allow the JW20/JW20H/JW30H to function.

-Make sure to tighten the module retention screws securely. Looseness of the screws may cause malfunctions.

5-1