Power The Nonisolated Dc Panelview Plus Terminals - Allen-Bradley 2711P Technical Data Manual

24 Wiring and Grounding Guidelines for PanelView Plus Terminals

Power the Nonisolated DC PanelView Plus Terminals

For systems with nonisolated DC PanelView Plus terminals, you must use a
separate converter or power supply to power each terminal.
To power multiple PanelView Plus DC terminals from one DC power supply, use
an isolated DC-to-DC converter with each terminal. The current from each
converter returns to the converter through the DC- wiring. This prevents DC-
current from returning to the PanelView Plus terminal through earth/ground
and damaging the terminal.
Figure 11 - Isolated DC-to-DC Converters to Power Multiple DC Terminals
+24V DC
Power
Common
DC-to-DC Converter
DC+
PanelView Plus
If a system contains multiple PanelView Plus DC terminals, use a separate
AC-to-DC power supply with each device. The current from each supply returns
to the power supply via the DC- wiring.
Figure 12 - Separate AC Power Supplies to Power Multiple DC Terminals
L2 L1
AC/DC Power Supply
2711P-RSACDIN
DC+ DC-
Circuitry
PanelView Plus
Terminal
Rockwell Automation Publication 2711P-TD001D-EN-P - February 2011
In+ In- In+ In-
Isolated Isolated
DC-to-DC Converter
DC- DC+ DC-
Circuitry
Circuitry
PanelView Plus
Terminal
Terminal
L2 L1
AC/DC Power Supply
2711P-RSACDIN
DC+ DC-
Circuitry
PanelView Plus
Terminal