Rockwell Automation 2711PC-xxxx PanelView Plus Compact User Manual - Manual (Page 26)

26 Publication 2711PC-UM001A-EN-P - March 2009
Chapter 3 Connecting Power
Connecting Power The PanelView Plus Compact terminals have an integrated, 24V DC
power supply. See
Appendix A , Specifications for power ratings.
The power supply is internally protected against reverse polarity of
the DC+ and DC- connections. Connecting DC+ or DC- to the earth
terminal may damage the device.
The input power terminal block supports these wire sizes.
Wire Specifications for DC Input Power Terminal Block
External Power Supply For Non-insolated DC Terminals
Use a single, 24V DC power supply to power each PanelView Plus
Compact terminal, such as cat. no. 2711P-RSACDIN. Using a separate,
isolated and ungrounded source to power each terminal prevents
ground loop currents from damaging the terminals.
Multiple AC Power Supplies to Power Multiple DC Terminals
The output on the power supply must be isolated from the input and
not connected to earth/ground.
The non-isolated power supply does not provide galvanic isolation. A
Class 2 or Safety Extra-Low Voltage (SELV) isolated power supply with
a 24V DC nominal output voltage is required to power the terminal.
Terminal Wire Type Dual-wire Gauge
(1) Single-wire Gauge Terminal Screw Torque
400 and 600 Stranded
or solid
Cu 90 °C (194 °F) 22…16 AWG 22…14 AWG
0.45…0.56 N•m (4…5 lb•in)
1000 0.56 N•m (5 lb•in)
(1)
Two-wire max. per terminal.
TIP
The PanelView Plus Compact terminals contain non-isolated DC
power supplies.
ATTENTION
Use a Class 2 or SELV supply as required by local wiring codes
for your installation. The Class 2 and SELV power sources
provide protection so that under normal and single-fault
conditions, the voltage between the conductors, and between
the conductors and functional earth or protective earth does not
exceed a safe value.
Circuitry Circuitry
dc+
PanelView Plus PanelView Plus
AC/DC Power Supply
L1 L2
dc- dc+ dc-
L1 L2
(2711P-RSACDIN) (2711P-RSACDIN)
AC/DC Power Supply