Rockwell Automation 2711PC-T10C4D1 PanelView Plus Terminals and Display Modules - Manual (Page 18)

18 PanelView Plus 700 to 1500 and PanelView Plus Compact 1000 Terminals and Display Modules
Publication 2711P-IN001I-EN-P - November 2009
External Power for Isolated DC Terminals
Use an SELV or PELV 24V DC power supply, such as catalog number 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.
Earth/Ground Connection
PanelView Plus devices with a DC power input have a earth/ground terminal that you must
connect to a low-impedance earth/ground. The earth/ground connection is on the rear of
the display module.
The earth/ground terminal requires a minimum wire gauge.
On most PanelView Plus devices, the earth/ground terminal is internally connected to the
DC- terminal within the product.
The PanelView Plus devices have isolated and non-isolated communication ports.
For more information refer to the PanelView Plus Terminals User Manual, publication
2711P-UM001 .
TIP
Isolated DC logic modules are identified by catalog number 2711P-RPxDx.
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. This connection is required for safety
by Underwriters Laboratory.
Earth/Ground Wire Specifications for DC Power
Symbol Wire Type Wire Gauge Terminal Screw Torque
GND
Stranded or solid Cu 90 °C (194 °F) 14…10 AWG 1.13…1.36 N•m (10…12 lb•in)
ATTENTION
Damage or malfunction can occur when a voltage potential exists between two
separate ground points. Make sure the terminal does not serve as a conductive
path between ground points at different potentials.