Allen-Bradley ProcessLogix 1757-PLX52 User manual

Publication 1757-5.1 - August 1999

Installation Instructions

ProcessLogix Hardware

(Cat. No. 1757-PLX52)

This document tells you how to install the components of the ProcessLogix™

system, including the:

•chassis and power supply

•1756-CNB ControlNet communication module

•1757-PLX52 Process Controller module

•I/O modules

•ProcessLogix server

•ControlNet cabling

We also help you to understand installation requirements.

TIP

For installation information and specifications for the Redundancy

Module, refer to publication 1757-5.15 (shipped with the

1757-SRM Redundancy Module).

For specifications for each module in your system, refer to the

documentation that was shipped with the module(s).

IMPORTANT The 1757-PLX52 Process Controller module is supplied with only

the boot code installed. You must configure the module before

you can use it in your system. Refer to the ProcessLogix Software

Installation Manual, publication 1757-5.74, for more information.

Allen-Bradley Automation

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Publication 1757-5.1 - August 1999

Important User Information

Because of the variety of uses for the products described in this publication, those

responsible for the application and use of this control equipment must satisfy

themselves that all necessary steps have been taken to assure that each application

and use meets all performance and safety requirements, including any applicable

laws, regulations, codes and standards.

The illustrations, charts, sample programs and layout examples shown in this guide

are intended solely for purposes of example. Since there are many variables and

requirements associated with any particular installation, Allen-Bradley does not

assume responsibility or liability (to include intellectual property liability) for actual

use based upon the examples shown in this publication.

Allen-Bradley publication SGI-1.1, Safety Guidelines for the Application, Installation

and Maintenance of Solid-State Control (available from your local Allen-Bradley

office), describes some important differences between solid-state equipment and

electromechanical devices that should be taken into consideration when applying

products such as those described in this publication.

Reproduction of the contents of this copyrighted publication, in whole or part,

without written permission of Rockwell Automation, is prohibited.

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

Attention statements help you to:

•identify a hazard

•avoid a hazard

•recognize the consequences

Allen-Bradley is a trademark of Rockwell Automation

ATTENTION

Identifies information about practices or circumstances that can

lead to personal injury or death, property damage or economic

loss

IMPORTANT Identifies information that is critical for successful application

and understanding of the product.

ProcessLogix Hardware 3

Publication 1757-5.1 - August 1999

European Communities (EC) Directive Compliance

If this product has the CE mark it is approved for installation within the European

Union and EEA regions. It has been designed and tested to meet the following

directives.

EMC Directive

This product is tested to meet the Council Directive 89/336/EC Electromagnetic

Compatibility (EMC) by applying the following standards, in whole or in part,

documented in a technical construction file:

•EN 50081-2 EMC — Generic Emission Standard, Part 2 — Industrial

Environment

•EN 5001082-2 EMC — Generic Immunity Standard, Part 2 — Industrial

Environment

This product is intended for use in an industrial environment.

Low Voltage Directive

This product is tested to meet Council Directive 73/23/EEC Low Voltage, by

applying the safety requirements of EN 61131-2 Programmable Controllers, Part 2 -

Equipment Requirements and Tests. For specific information required by EN

61131-2, see the appropriate sections in this publication, as well as the

Allen-Bradley publication Industrial Automation Wiring and Grounding Guidelines

For Noise Immunity, publication 1770-4.1.

This equipment is classified as open equipment and must be mounted in an

enclosure during operation to provide safety protection.

Allen-Bradley Automation

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Publication 1757-5.1 - August 1999

Installation Requirements

Before you begin installing the system, take a moment to review these system

installation requirements.

Location

The ProcessLogix system is CSA certified and FM approved non-incendive

equipment for installation in Class I, Division 2, Group A, B, C & D hazardous

(classified) locations. The user must ensure all parts of the system, and any other

equipment in the Division 2 area, are listed for installation in a Class I, Division 2

hazardous (classified) location.

Removal and Insertion Under Power

Some ProcessLogix modules (e.g., I/O and communications modules) as well as the

1757-PLX52 Process Controller module have been designed to permit removal and

insertion under power (RIUP) without damaging the module or interrupting

backplane communications.

Any time electrical connections are made or broken, there is a potential for arcing

or sparking. Do not remove or insert any modules while they are still powered up

when you are in a hazardous (potentially explosive) environment.

ATTENTIO

The ProcessLogix RIUP feature does not apply to

installations that must conform to Division 2 hazardous

location requirements. Unless the location is known to be

non-hazardous, do not:

•connect or disconnect cables

•connect or disconnect removable terminal blocks

•install or remove modules

ProcessLogix Hardware 5

Publication 1757-5.1 - August 1999

Installing the Chassis and Power Supply

Follow this procedure to install the ControlLogix chassis and power supply.

Before You Begin

Before you begin, gather these tools:

•1/8” slotted screwdriver

•1/4” slotted (#2) or phillips screwdriver

•torque screwdriver

•needle-nose pliers

•crimping tool

Set the Line Voltage Input Jumper

Use needle-nose pliers to set the jumper to the correct position.

TIP Ensure that you have properly calculated the backplane

requirements for the power supply you are installing.

IMPORTANT The “HI” and “LOW” positions are marked on the power supply’s

circuit board

for this power supply set jumper to this position

1756-PA72 (120V ac) low (default)

1756-PA72 (240V ac) high

Allen-Bradley Automation

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Publication 1757-5.1 - August 1999

Install the Power Supply

1. Align the power supply’s circuit board with the card guides on the left side

of the chassis

2. Slide the power supply in until it is flush with the chassis.

3. Tighten the screw holding the power supply to the chassis.

4. Connect safety ground from the power supply to the chassis.

5. Use the following illustration to run functional and safety ground

connections from the chassis and power supply to the ground bus.

Stationary Nut

To ground bus

Equipment grounding

conductor (ground lug

with 2.1 mm

(14 AWG)

wire) safety ground from

chassis to ground bus

Equipment grounding

conductor (ground lug

with 2.1 mm

(14 AWG)

wire) safety ground

from power supply

Nut with captive

stare washer

30188-M

Safety gound

terminal stud

Wiring terminal

block

Nut with captive star washer

Safety ground

terminal stud Stationary nut

Wiring terminal

block

To ground bus

Equipment grounding

conductor (ground lug

with 2.1 mm2[14 AWG]

wire) safety ground from

power supply

Equipment grounding

conductor (ground lug

with 2.1 mm2[14 AWG]

wire) safety ground

from power supply

ProcessLogix Hardware 7

Publication 1757-5.1 - August 1999

IMPORTANT We recommend using a ground bus because it reduces the

electrical resistance at the connection.

20231a-M

Earth Ground

Keep wire lengths as short as possible.

Allen-Bradley Automation

8ProcessLogix Hardware

Publication 1757-5.1 - August 1999

Connect Power

1. Use #14 AWG 75 °C copper wire.

2. Tighten terminals to a torque of 7 inch-pounds.

3. Connect L1 for the high side of line power.

4. Connect L2 for the low side of line power.

1. Remove the protective label from the top of the power supply.

2. Apply power by toggling the switch on the front of the power supply from

OFF to ON.

ATTENTIO

Turn off power lines before connecting power. Failure to

do so could cause injury to personnel and/or damage to

equipment.

IMPORTANT Make sure you mount the chassis and complete work on the

panel before you remove the protective label. The label protects

the power supply from metal shavings falling inside the power

supply and damaging it during operation.

ProcessLogix Hardware 9

Publication 1757-5.1 - August 1999

Troubleshoot the Power Supply

The ControlLogix power supply has a green LED indicator that remains on during

normal operation. If the indicator is off during normal operation, try the following:

1. Verify that line voltage is within the specified range.

2. Make sure the input voltage jumper is in the proper position (see page 5).

3. If indicator remains off, cycle line power off.

4. Loosen the screws holding the power supply to the chassis.

5. Slide the power supply out so the rear connector is disconnected.

6. Wait 45 seconds and re-apply power.

7. If the indicator turns on, verify that the system module loads are within the

output rating of the power supply and re-install the power supply in the

chassis.

8. If the LED turns off, return the power supply to your local Rockwell

Automation distributor.

Installing the ControlNet Communications Module

Install the 1756-CNB module for ControlNet communications into slot 0 of the

chassis.

1. Align the module circuit board with the top and bottom guides in the

chassis.

2. Slide the module into the chassis. Make sure the module properly connects

to the chassis backplane.

TIP The module is fully installed when it is flush with the power

supply or other installed modules.

To remove the module, push down on the locking clips at the

top and bottom of each module. Slide the module out of the

chassis.

Allen-Bradley Automation

10 ProcessLogix Hardware

Publication 1757-5.1 - August 1999

Installing the 1757-PLX52 Process Controller Module

Install the 1757-PLX52 module into slot 1, 3, 5,7, 9, 11, 13 or 15 of the chassis.

1. Align the module circuit board with the top and bottom guides in the

chassis.

2. Slide the module into the chassis in the appropriate slot. Make sure the

module properly connects to the chassis backplane.

Install the Battery

The battery is disconnected during shipping to conserve power. To install the

battery:

1. Open the front door of the 1752-PLX module.

2. Locate the battery connector (a small, white plug at the end of a pair of red

and black twisted wires).

TIP The module is fully installed when it is flush with the other

installed modules.

To remove the module, push down on the locking clips at the

top and bottom of each module. Slide the module out of the

chassis.

ATTENTIO

The 1757-PLX52 module contains a non-rechargeable

lithium battery. This battery may present a risk of fire or

chemical burns if mishandled. Do not recharge,

disassemble, heat above 100 °C (212 °F), or incinerate.

Always dispose of lithium batteries properly.

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