Allen-Bradley 2711P Manuel d'instructions

Technical Data

Wiring and Grounding Guidelines

for PanelView Plus Terminals

Catalog Number 2711P

About This Publication

This document provides information on how to properly wire, ground, and apply

power to these devices:

•PanelView Plus 6 terminals (700 to 1500)

•PanelView Plus 700 to 1500 terminals supporting FactoryTalk View

Machine Edition software, version 5.1 or earlier

•PanelView Plus 400 and 600 terminals

•PanelView Plus Compact terminals (400, 600, 1000)

Throughout this publication, PanelView Plus terminals is used generically to

refer to all terminals unless specifically stated.

Topic Page

Important User Information 2

Terms and Definitions 3

Wiring and Safety Guidelines 4

Hazardous Location Advisory 4

Remove and Install the Power Terminal Block 5

PanelView Plus Nonisolated DC Terminals 7

PanelView Plus Isolated DC Terminals 12

PanelView Plus AC Terminals 17

Communication Port Isolation 21

Ethernet Cable 22

Guidelines for Powering Nonisolated DC PanelView Plus Terminals 23

Guidelines for Powering the Isolated DC PanelView Plus Terminals 26

How to Avoid Grounding Problems 27

Additional Resources 33

Rockwell Automation Publication 2711P-TD001D-EN-P - February 2011

2Wiring and Grounding Guidelines for PanelView Plus Terminals

Important User Information

Solid-state equipment has operational characteristics differing from those of electromechanical equipment. Safety

Guidelines for the Application, Installation and Maintenance of Solid State Controls (publication SGI-1.1 available from

your local Rockwell Automation sales office or online at http://www.rockwellautomation.com/literature/) describes some

important differences between solid-state equipment and hard-wired electromechanical devices. Because of this difference,

and also because of the wide variety of uses for solid-state equipment, all persons responsible for applying this equipment

must satisfy themselves that each intended application of this equipment is acceptable.

In no event will Rockwell Automation, Inc. be responsible or liable for indirect or consequential damages resulting from the

use or application of this equipment.

The examples and diagrams in this manual are included solely for illustrative purposes. Because of the many variables and

requirements associated with any particular installation, Rockwell Automation, Inc. cannot assume responsibility or

liability for actual use based on the examples and diagrams.

No patent liability is assumed by Rockwell Automation, Inc. with respect to use of information, circuits, equipment, or

software described in this manual.

Reproduction of the contents of this manual, in whole or in part, without written permission of Rockwell Automation,

Inc., is prohibited.

Throughout this manual, when necessary, we use notes to make you aware of safety considerations.

Allen-Bradley, DH+, FactoryTalk View Machine Edition, PanelView Plus, PanelView Plus Compact, Rockwell Software, Rockwell Automation, and

TechConnect are trademarks of Rockwell Automation, Inc.

Trademarks not belonging to Rockwell Automation are property of their respective companies.

WARNING: Identifies information about practices or circumstances that can cause an explosion in a hazardous

environment, which may lead to personal injury or death, property damage, or economic loss.

ATTENTION: Identifies information about practices or circumstances that can lead to personal injury or death,

property damage, or economic loss. Attentions help you identify a hazard, avoid a hazard, and recognize the

consequence

SHOCK HAZARD: Labels may be on or inside the equipment, for example, a drive or motor, to alert people that

dangerous voltage may be present.

BURN HAZARD: Labels may be on or inside the equipment, for example, a drive or motor, to alert people that

surfaces may reach dangerous temperatures.

IMPORTAN

Identifies information that is critical for successful application and understanding of the product.

Rockwell Automation Publication 2711P-TD001D-EN-P - February 2011

Wiring and Grounding Guidelines for PanelView Plus Terminals 3

Terms and Definitions

This section provides a list of important terms and definitions referred to in this

document.

UL Class 2 - A UL Class 2 power supply meets the requirements of UL 1310,

Class 2 Power Units. A Class 2 power source has a ‘Class 2’ marking and UL

symbol on its nameplate. Such a supply, when properly applied, provides output

power that is safe from electrical shock and fire hazard.

Safety Extra-low Voltage (SELV) - An electrical secondary circuit in which the

voltage cannot exceed a safe value under normal and single-fault conditions,

including earth faults in other circuits. SELV is defined in IEC EN60950 and

IEC EN60364-4-41.

The voltage between any two conductors in a SELV circuit, and the voltage

between any conductor and earth, cannot exceed 30V rms, 42.4V AC peak, or

60V DC under normal operating or single-fault conditions.

SELV Power Source - A power source determined by a regulatory body to meet

SELV requirements.

Protective Extra-low Voltage (PELV) - A safety extra-low voltage output with

its common connected to earth ground.

Earth/Ground - A conducting path between an electric circuit or equipment

and ground for safety or EMC reduction. In industrial equipment, the earth

connection is typically a grounded metal bar with features to facilitate connecting

to multiple pieces of equipment.

DC Common - For PanelView Plus terminals that operate on 24V DC power,

DC common is the conductor that returns 24V DC current to the source supply,

and is connected to the DC(-) position on the input power terminal block.

Functional Earth (FE) Conductor - A conductor that is in electrical contact

with Earth for interference immunity improvement.

Protective Earth (PE) Conductor - A conductor that is in electrical contact

with Earth for safety protection against electrical shock.

Ground Bus - The system ground bus is a metal bar in the enclosure whose

purpose is to provide a grounding point for the equipment that comprises the

system. The ground bus has multiple features to facilitate grounding multiple

pieces of equipment. The ground bus is connected to the grounding electrode

system via the grounding electrode conductor.

In typical industrial systems, the ground bus is mounted on the back panel of the

enclosure. The protective earth and functional earth terminals of the various

equipment in the enclosure are connected to the ground bus bar.

Rockwell Automation Publication 2711P-TD001D-EN-P - February 2011

4Wiring and Grounding Guidelines for PanelView Plus Terminals

Wiring and Safety

Guidelines

Use publication NFPA 70E, Electrical Safety Requirements for Employee

Workplaces, IEC 60364 Electrical Installations in Buildings, or other applicable

wiring safety requirements for the country of installation when wiring the

devices. In addition to the NFPA guidelines, follow these guidelines:

•Connect the device and other similar electronic equipment to its own

branch circuit.

•Protect the input power by a fuse or circuit breaker rated at no more than

15 A.

•Route incoming power to the device by a separate path from the

communication lines.

•Cross power and communication lines at right angles, if they must cross.

Communication lines can be installed in the same conduit as low-level DC

I/O lines (less than 10V).

•Shield and ground cables appropriately to avoid electromagnetic

interference (EMI).

Grounding minimizes noise from EMI and is a safety measure in electrical

installations.

For more information on grounding recommendations, refer to the National

Electrical Code published by the National Fire Protection Association.

Hazardous Location

Advisory

WARNING: Explosion Hazard

Substitution of components may impair suitability for hazardous locations.

Do not disconnect equipment unless power has been switched off and the

area is known to be nonhazardous.

Do not connect or disconnect components unless power has been switched

off.

All wiring must comply with N.E.C. articles 501, 502, 503, and C.E.C. section

18-1J2, as appropriate.

Peripheral equipment must be suitable for the location it is used in.

Rockwell Automation Publication 2711P-TD001D-EN-P - February 2011

Wiring and Grounding Guidelines for PanelView Plus Terminals 5

Remove and Install the

Power Terminal Block

PanelView Plus terminals are shipped with the power terminal block installed.

You can remove the terminal block for ease of installation, wiring, and

maintenance.

PanelView Plus 400 and 600 Terminals

Follow these steps to remove the terminal block in any PanelView Plus 400 and

600 terminal, including the PanelView Plus Compact 400 and 600 terminals.

1. Insert the tip of a small screwdriver into the terminal block access slot.

2. Gently pry the terminal block away from the terminal to release the

locking mechanism.

Follow these steps to replace the terminal block.

1. Press the terminal block base in first with the block leaning outward.

2. Gently push the top of the terminal block back to the vertical position to

snap in the locking tab.

WARNING: Explosion Hazard

Do not disconnect equipment unless power has been switched off and the

area is known to be nonhazardous.

Disconnect all power before installing or replacing components. Failure to

disconnect power may result in electrical shock or damage to the device.

Rockwell Automation Publication 2711P-TD001D-EN-P - February 2011

6Wiring and Grounding Guidelines for PanelView Plus Terminals

PanelView Plus 700 to 1500 Terminals

The terminal block installed in the 700 to 1500 terminals depends on the series

of the logic module and the power input type.

Follow these steps to remove the terminal block.

1. Loosen the two screws that secure the terminal block.

2. Gently pull the terminal block away from the connector.

Follow these steps to install the terminal block.

1. Reattach the terminal block to the connector until seated.

2. Tighten the two screws that secure the terminal block to the connector.

Table 1 - Power Terminal Block

Power

Input This Terminal

Block is Used With This Device

DC 2-position •Series A or later PanelView Plus 6 logic modules

•Series E or later PanelView Plus logic modules(1)

•PanelView Plus Compact 1000 terminals

(1) These logic modules support FactoryTalk View Machine Edition software, version 5.1 or earlier.

3-position •Series A-D logic modules (PanelView Plus) (1)

AC 3-position •All terminals and logic modules with an AC power input

3-position AC or DC

2-position DC Terminal

Rockwell Automation Publication 2711P-TD001D-EN-P - February 2011

Wiring and Grounding Guidelines for PanelView Plus Terminals 7

PanelView Plus

Nonisolated DC Terminals

PanelView Plus terminals with a nonisolated DC power input

require both of these:

•Separate, external power supply for each device

•Functional earth/ground connection

Nonisolated DC Terminals

All PanelView Plus 400 and 600 terminals, and PanelView Plus Compact

terminals that operate on DC power contain nonisolated, DC power supplies.

Nonisolated DC Logic Modules

Nonisolated, DC logic modules are used with PanelView Plus 700 to 1500

terminals supporting FactoryTalk View ME software, version 5.1 or earlier.

Table 2 - Terminals with Nonisolated DC Power Supplies

Cat. No. Terminal Type

•2711P-K4M5D, 2711P-K4M20D

•2711P-K4C5D, 2711P-B4C5D

•2711P-K4C20D, 2711P-B4C20D

PanelView Plus 400

•2711P-K6M5D, 2711P-T6M5D, 2711P-B6M5D

•2711P-K6C5D, 2711P-T6C5D, 2711P-B6C5D

•2711P-K6M20D, 2711P-T6M20D, 2711P-B6M20D

•2711P-K6C20D, 2711P-T6C20D, 2711P-B6C20D

PanelView Plus 600

•2711PC-K4M20D, 2711PC-B4C20D,

•2711PC-T6M20D, 2711PC-T6C20D,

•2711PC-T10C4D1

PanelView Plus Compact

400, 600, 1000

TIP All DC logic modules used by PanelView Plus 6 terminals are isolated.

Table 3 - Nonisolated DC Logic Modules

Cat. No. (1)

(1) These logic modules support FactoryTalk View Machine Edition software, version 5.1 or earlier.

Logic Modules with Nonisolated DC Power

2711P-RP Logic module without nonvolatile memory and RAM

2711P-RP1 Logic module with 64 MB nonvolatile memory and RAM

2711P-RP2 Logic module with 128 MB nonvolatile memory and RAM

2711P-RP6 CE logic module with 128 MB nonvolatile memory and RAM

2711P-RP2K Conformal-coated logic module with 128 MB nonvolatile memory and RAM

2711P-RP6K CE conformal-coated logic module with 128 MB nonvolatile memory and RAM

2711P-RP3 Logic module with 256 MB nonvolatile memory and RAM

2711P-RP7 CE logic module with 256 MB nonvolatile memory and RAM

IMPORTANT Refer to Communication Port Isolation on page 21 for information on

communication port isolation.

Rockwell Automation Publication 2711P-TD001D-EN-P - February 2011

8Wiring and Grounding Guidelines for PanelView Plus Terminals

External Power Supply for Nonisolated DC Terminals

Use a single, 24V DC power supply, such as catalog number 2711P-RSACDIN,

to power PanelView Plus terminals with a nonisolated DC power supply. Using a

separate, isolated, and ungrounded source with each terminal prevents ground

loop currents from damaging the product.

The output on the power supply must be isolated from the input and not

connected to the earth/ground.

The nonisolated 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.

Figure 1 - AC Power Supplies Powering Multiple PanelView Plus DC Terminals

ATTENTION: Use a Class 2 or SELV power 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 conductors, and between the conductors and functional

earth or protective earth, does not exceed a safe value.

L2L1 L1L2

DC+ DC- DC+ DC-

Circuitry

PanelView Plus

Terminal PanelView Plus

Terminal

AC/DC Power Supply

2711P-RSACDIN

AC/DC Power Supply

2711P-RSACDIN

Rockwell Automation Publication 2711P-TD001D-EN-P - February 2011

Wiring and Grounding Guidelines for PanelView Plus Terminals 9

Earth/Ground Connection for Nonisolated DC Terminals

PanelView Plus devices with a nonisolated DC power supply have a functional

earth/ground (FE) terminal that you must connect to a low-impedance

earth/ground:

•The 700 to 1500 terminals have the functional 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 functional earth terminal wiring requires a minimum wire gauge.

On most PanelView Plus DC terminals, the earth/ground terminal is internally

connected to the DC- terminal within the product.

The functional earth terminal is typically connected to a system grounding bus. If

the grounding bus has tapped holes, the conductor from the functional earth

terminal must have a ground lug on the ground bus end. A bolt should pass

through a star washer, then through the ground conductor lug, then into the

ground bus.

Use the shortest, practical wire length to connect the functional earth/ground to

a low-impedance earth/ground. The ground wire must be either green or green

with a yellow stripe.

Refer to local wiring codes and regulations for grounding requirements.

IMPORTANT The functional earth 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.

Table 4 - Functional Earth Wiring

Terminal Model FE Symbol Wire Type Wire Gauge Terminal Screw Torque

400 and 600 (1)

Cu 90 °C (194 °F) Copper

Stranded or solid

2.1…3.3 mm2

(14…12 AWG) 0.45…0.56 N•m

(4…5 lb•in)

700 to 1500 (2) GND 2.1…5.3 mm2

(14…10 AWG) 1.13…1.36 N•m

(10…12 lb•in)

(1) Includes the PanelView Plus Compact 400 and 600 terminals.

(2) Includes the PanelView Plus Compact 1000 terminal.

ATTENTION: Damage or malfunction can occur when a voltage potential

exists between two separate ground points. Make sure the PanelView

Plus terminal does not serve as a conductive path between ground points

at different potentials.

Rockwell Automation Publication 2711P-TD001D-EN-P - February 2011

10 Wiring and Grounding Guidelines for PanelView Plus Terminals

Figure 2 - Functional Earth Connection for 700 to 1500 Nonisolated DC Terminals

Figure 3 - Functional Earth Connection for 400 and 600 DC Terminals

Enclosure Wall

To Grounding Electrode System

Tapped Hole

Ground Lug

Bolt

Star Washer

Ground Bus

Functional Earth/Ground to Ground Bus

Enclosure Wall

To Grounding Electrode System

Tapped Hole

Ground Lug

Bolt

Star Washer DC +

DC - Functional Earth

Ground Bus

Ce manuel convient aux modèles suivants

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