Rockwell-automation 1500 DeviceNet MV Controllers Installation Instruc Manual de usuario descargar pdf (Pagina 23)

DeviceNet Power Supply 6-3

1500-IN057C-EN-P – June 2013

Connecting Two Power Supplies

When an additional 24 Vdc Class 1 power supply must be installed for

MV controller line-ups, the red trunk conductor between the power

supplies must be broken. Locate a linking connector between sections

and disconnect the red conductor (refer to the following figure).

Ground only ONE of the two power supplies.

Power Supply Power Supply

Red V+

White CAN_H

Blue CAN_L

Black V- (common)

break

Power Supply Power Supply

Red V+

White CAN_H

Blue CAN_L

Black V- (common)

break

Figure 6.2 – Connecting Two DeviceNet Power Supplies

MCC line-ups with more than 10 2-Hi sections could exceed the 39

meters (128 feet) cumulative drop limit to support 500 kbps

communications. When the trunk length exceeds this limit, 250 kbps

communications should be specified.

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