Earth/ground connection – Rockwell Automation 2711P PanelView Plus Terminal User Manual User Manual

Page 53

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Publication 2711P-UM001J-EN-P - November 2009

53

Power Connections Chapter 3

External Power for 700 to 1500 Isolated DC Terminals
(2711P-Rxx
Dx Logic Modules)

Use an SELV or PELV 24V DC power supply, such as cat. no.
2711P-RSACDIN, to power the isolated DC PanelView Plus terminal.

The isolated DC terminals may be powered by the same power source
as other equipment, by a DC power bus.

Earth/Ground Connection

PanelView Plus devices with a DC power input have an earth/ground
terminal that you must connect to a low-impedance earth/ground.

The 700 to 1500 terminals have the earth/ground connection on
the rear of the display module.

The 400 and 600 terminals have the functional earth/ground
connection on the power input terminal block.

The earth terminal requires a minimum wire gauge.

Earth Wire Specifications for DC Power

ATTENTION

Use an SELV or PELV supply as required by local wiring codes
for your installation. The SELV and PELV power sources provide
protection so that under normal and single fault conditions, the
voltage between conductors and earth/ground does not exceed
a safe value.

IMPORTANT

The earth/ground connection to ground is mandatory. This
connection is required for noise immunity, reliability, and
Electromagnetic Compliance (EMC) with the European Union
(EU) EMC directive for CE-mark conformance and is required for
safety by Underwriters Laboratory.

Terminal

Symbol

Wire Type

Wire Gauge

Terminal Screw Torque

400 and 600

Stranded or solid

Cu 90 °C (194 °F)

14…12 AWG

0.45…0.56 Nm (4…5 lb•in)

700 to1500

GND

14…10 AWG

1.13…1.36 Nm (10…12 lb•in)

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