Rockwell Automation Publication 2711P-TD001D-EN-P - February 2011
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
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
In+
In-
In+
In-
DC+
DC-
DC+
DC-
+24V DC
Power
Common
Circuitry
Circuitry
Isolated
DC-to-DC Converter
Isolated
DC-to-DC Converter
PanelView Plus
Terminal
PanelView Plus
Terminal
L2
L1
L1
L2
DC+
DC-
DC+
DC-
Circuitry
Circuitry
PanelView Plus
Terminal
AC/DC Power Supply
2711P-RSACDIN
AC/DC Power Supply
2711P-RSACDIN
PanelView Plus
Terminal