Allen-Bradley 2711P-B10C4A8, Руководство пользователя

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Rockwell Automation Publication 2711P-UM006E-EN-P - January 2017 39
Install Terminal Chapter 2
PanelView Plus 6 devices were tested to operate with the catalog number
2711P-RSACDIN power supply. To use another power supply, review the
criteria in the table.
Earth/Ground Connection
PanelView Plus 6 devices with a DC power input have an earth/ground terminal
that you must connect to a low-impedance earth/ground.
• On 400 and 600 terminals, the earth/ground connection is on the power
terminal block.
• On 700 to 1500 terminals, the earth/ground connection is on the rear of
the display module.
Table 38 - Power Supply Criteria
If the PanelView Plus 6 Device Use a Description
Connects to equipment with isolated
communication ports SELV or PELV power supply Other equipment can share this power
supply with the PanelView Plus 6 device
provided that no ground loops are created.
A PELV source internally connects the
negative power terminal to chassis ground.
Does not connect to other equipment
Connects to equipment with non-
isolated communication ports Dedicated, isolated, and
ungrounded SELV source to
power each terminal This prevents ground loops from damaging
the device.
IMPORTANT
All of the communication ports on the terminals and supported
communication modules are isolated, with the exception of the USB ports.
IMPORTANT
The earth/ground connection to ground is mandatory. This connection is
required for the following:
• Noise immunity, reliability, and Electromagnetic Compliance (EMC) with
the European Union (EU) EMC directive for CE-mark conformance
• Safety by Underwriters Laboratory
Table 39 - Earth Wire Specifications for DC Power
Terminal Symbol Wire Type Wire Gauge Terminal Screw Torque
400, 600 GND
Stranded or solid
Cu 90 °C (194 °F) 2.1…3.3 mm
2
(14…12 AWG)
0.45…0.56 N•m
(4…5 lb•in)
700 to 1500 GND
Stranded or solid
Cu 90 °C (194 °F) 2.1…5.3 mm
2
(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.