Rockwell-automation 1500 DeviceNet MV Controllers Installation Instruc Manual de usuario descargar pdf (Pagina 8)

2-2 Designing Cable Systems

1500-IN057C-EN-P – June 2013

Medium Voltage Controller Cable System Construction

A T T E N T I O NA T T E N T I O N

Do not apply high voltage to any installed

DeviceNet cable system or its connectors. The

high voltage will destroy internal capacitors in

the connectors.

Three types of media (cable) are used in medium voltage controllers for

DeviceNet communication:

Type

Flat

• Class 1, 600 volts, 8 amps

• 4 conductor – no shield or

bare wire required in Class

1 DeviceNet MV Controllers

Round

• Class 1, 600 volts, 8 amps

• 4 conductor – no shield or

bare wire required in Class 1

DeviceNet MV Controllers

Round

• Class 1, 600 volts, 8 amps

• 4 conductor – no shield or

bare wire requred in Class

1 DeviceNet MV Controllers

Use

Trunk lines and drop lines

Connecting units to DeviceNet

ports (unit drop lines)

Trunk line for extending trunk

beyond MV Controllers

Part number

1485C-P1E75 (75 m spool)

1485C-P1E200 (200 m spool)

1485C-P1E420 (420 m spool)

1485C-P1-B50 (50m spool)

Belden 7896A

Flat cable

Round cable

Flat cable

Round cable

Figure 2.1 – Typical DeviceNet Media Used in MV Controllers

For flat cable specifications, refer to publication 1485-CG001_-EN-P,

page 10.

I M P O R T A N TI M P O R T A N T

It is not recommended to use both Class 1- and Class

2-rated cables within the same DeviceNet system.

These two cable types are not compatible because

the following properties are different:

• Insulation class

• Overcurrent protection requirements

• Network transmission

Using Class 1- and Class 2-rated cables within the

same DeviceNet system can result in application,

code, and communication problems.

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