MODEL: MDW5-CC

MDW5-CC SPECIFICATIONS

ES-8220 Rev.5 Page 2/3

https://www.m-system.co.jp/

CONNECTION EXAMPLES

MDW5-CC

MDW5-CC

Surge Side

Surge Side

Panel / Cabinet

Panel / Cabinet

Protected Side

Network Cable

Protected Side

Network Cable

Protected

Devices

(Stations)

Protected

Devices

(Stations)

• Install the lightning surge protector in a place where it is considered lightning surge may enter (where the space between

panels/cabinets are greatly separated, such as outdoor wiring).

Also, connecting the surge protector, serial resistance or the number of CC-Link devices capacitance, are added to the network,

therefore, it is needed to reduce the maximum number of slave stations per number of surge protector’s connections.

Reduce until 5 the number of slave station connections per 1 surge protector.

If you install 2 surge protectors, the maximum number of connections is 54.

• To keep good communication quality, leave a distance of at least 20 cm between units, and as short as possible length for the cable

of the surge protector and protected devices.

• Irrespectively of transmission speed, T junction connection is not available.

• Make the wiring in concordance with Ver.1.1.0 specifications.

• Refer to “Cable Wiring Manual” issued by CC-Link Partner Association for CC-Link network details.

■ NETWORK WITH BRANCH

• When lightning surge may enter from cables more than one, use the repeater (T-Branch) units and make T-Branch network so that

additional surge protectors can be installed.

• When 2 surge protectors are used on each of both trunk and branch networks (see below), 54 CC-Link devices can be installed on

the each networks.

• In case of using repeater (T-Branch) unit, refer to “Cable Wiring Manual” issued by CC-Link Partner Association and manual of the

unit.

*1. if the CC-Link devices used capacitance is low or transmission distance is short, there are cases that it is due to the slave

stations are less than the number of the maximum connections, or to the arrester extension. In such a case, check all connection

installation.

■ NETWORK CONFIGURATION

FG

FG

FE

FE

Earthing

Earthing

MDW5-CC

Repeater Unit

MDW5-CC

CC-Link Device

CC-Link devices

Surge Protector

MDW5-CC

MDW5-CC

Trunk Network

Branch Network

Surge Protector

Surge Protector

Surge Protector

CC-Link devices