Rockwell Automation ControlLogix 1756-PA72 Series C Bedienungsanleitung

Installation Instructions

ControlLogix Power Supplies

Catalog Numbers 1756-PA72 Series C, 1756-PB72

Series C, 1756-PA75 Series B, 1756-PB75 Series B,

1756-PH75 Series B, 1756-PC75 Series B

About the Power Supplies

ControlLogix power supplies are used with the 1756 chassis to provide 1.2V, 3.3V, 5V, and

24V DC power for all modules installed in the chassis. The non-redundant power supplies are

mounted on the left end of the chassis, where they are plugged directly into the backplane.

Topic Page

Important User Information 2

Environment and Enclosure 3

Safety-related Programmable Electronic Systems 4

North American Hazardous Location Approval 4

European Hazardous Location Approval 5

Before You Begin 5

Install the Power Supply 6

Ground the Power Supply at Protective Earth Ground 8

Connect the Power 10

Remove the Protective Label 11

Activate the Power Supply 12

Determine the Input Power Requirements/Transformer Sizing 12

Status Indicators 14

Specifications 15

Additional Resources 23

2ControlLogix Power Supplies

Publication 1756-IN613A-EN-P - December 2008

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://literature.rockwellautomation.com) 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.

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.

IMPORTANT Identifies information that is critical for successful application and understanding of

the product.

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 consequences.

SHOCK HAZARD

Labels may be on or inside the equipment (for example, drive or motor) to alert people

that dangerous voltage may be present.

BURN HAZARD

Labels may be on or inside the equipment (for example, drive or motor) to alert people

that surfaces may reach dangerous temperatures.

ControlLogix Power Supplies 3

Publication 1756-IN613A-EN-P - December 2008

Environment and Enclosure

Prevent Electrostatic Discharge

ATTENTION This equipment is intended for use in a Pollution Degree 2 industrial environment, in

overvoltage Category II applications (as defined in IEC publication 60664-1), at altitudes

up to 2000 m (6562 ft) without derating.

This equipment is considered Group 1, Class A industrial equipment according to

IEC/CISPR Publication 11. Without appropriate precautions, there may be potential

difficulties ensuring electromagnetic compatibility in other environments due to

conducted as well as radiated disturbance.

This equipment is supplied as open-type equipment. It must be mounted within an

enclosure that is suitably designed for those specific environmental conditions that will

be present and appropriately designed to prevent personal injury resulting from

accessibility to live parts. The enclosure must have suitable flame-retardant properties to

prevent or minimize the spread of flame, complying with a flame spread rating of 5VA,

V2, V1, V0 (or equivalent) if non-metallic. The interior of the enclosure must be accessible

only by the use of a tool. Subsequent sections of this publication may contain additional

information regarding specific enclosure type ratings that are required to comply with

certain product safety certifications.

In addition to this publication, see:

•Industrial Automation Wiring and Grounding Guidelines, for additional installation

requirements, Allen-Bradley publication 1770-4.1.

•NEMA Standards publication 250 and IEC publication 60529, as applicable, for

explanations of the degrees of protection provided by different types of enclosure.

ATTENTION This equipment is sensitive to electrostatic discharge, which can cause internal damage

and affect normal operation. Follow these guidelines when you handle this equipment:

•Touch a grounded object to discharge potential static.

•Wear an approved grounding wriststrap.

•Do not touch connectors or pins on component boards.

•Do not touch circuit components inside the equipment.

•Use a static-safe workstation, if available.

•Store the equipment in appropriate static-safe packaging when not in use.

4ControlLogix Power Supplies

Publication 1756-IN613A-EN-P - December 2008

Safety-related Programmable Electronic Systems

North American Hazardous Location Approval

ATTENTION Personnel responsible for the application of safety-related programmable electronic

systems (PES) shall be aware of the safety requirements in the application of the system

and shall be trained in using the system.

The following information applies when operating

this equipment in hazardous locations. Informations sur l’utilisation de cet équipement en

environnements dangereux.

Products marked "CL I, DIV 2, GP A, B, C, D" are suitable for use in

Class I Division 2 Groups A, B, C, D, Hazardous Locations and

nonhazardous locations only. Each product is supplied with

markings on the rating nameplate indicating the hazardous

location temperature code. When combining products within a

system, the most adverse temperature code (lowest "T" number)

may be used to help determine the overall temperature code of

the system. Combinations of equipment in your system are subject

to investigation by the local Authority Having Jurisdiction at the

time of installation.

Les produits marqués "CL I, DIV 2, GP A, B, C, D" ne conviennent

qu'à une utilisation en environnements de Classe I Division 2

Groupes A, B, C, D dangereux et non dangereux. Chaque produit

est livré avec des marquages sur sa plaque d'identification qui

indiquent le code de température pour les environnements

dangereux. Lorsque plusieurs produits sont combinés dans un

système, le code de température le plus défavorable (code de

température le plus faible) peut être utilisé pour déterminer le

code de température global du système. Les combinaisons

d'équipements dans le système sont sujettes à inspection par les

autorités locales qualifiées au moment de l'installation.

WARNING EXPLOSION HAZARD -

• Do not disconnect equipment

unless power has been removed

or the area is known to be

nonhazardous. Do not disconnect

equipment unless power has

been removed or the area is

known to be nonhazardous.

• Do not disconnect connections to

this equipment unless power has

been removed or the area is

known to be nonhazardous.

Secure any external connections

that mate to this equipment by

using screws, sliding latches,

threaded connectors, or other

means provided with this product.

• Substitution of components may

impair suitability for Class I,

Division 2.

• If this product contains batteries,

they must only be changed in an

area known to be nonhazardous.

AVERTISSEMENT RISQUE D’EXPLOSION –

• Couper le courant ou s'assurer

que l'environnement est classé

non dangereux avant de

débrancher l'équipement.

• Couper le courant ou s'assurer

que l'environnement est classé

non dangereux avant de

débrancher les connecteurs. Fixer

tous les connecteurs externes

reliés à cet équipement à l'aide

de vis, loquets coulissants,

connecteurs filetés ou autres

moyens fournis avec ce produit.

• La substitution de composants

peut rendre cet équipement

inadapté à une utilisation en

environnement de Classe I,

Division 2.

• S'assurer que l'environnement est

classé non dangereux avant de

changer les piles.

ControlLogix Power Supplies 5

Publication 1756-IN613A-EN-P - December 2008

European Hazardous Location Approval

Before You Begin

Before you attempt to install a power supply, make sure you have the required tools.

Required Tools

•1/8” slotted screwdriver

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

•Torque screwdriver

•Needle-nose pliers

•Crimping tool

1756-PB72 Series C, 1756-PB75 Series B (only)

European Zone 2 Certification (The following applies when the product bears the Ex or EEx

Marking)

This equipment is intended for use in potentially explosive atmospheres as defined by European Union

Directive 94/9/EC and has been found to comply with the Essential Health and Safety Requirements

relating to the design and construction of Category 3 equipment intended for use in potentially explosive

atmospheres, given in Annex II to this Directive.

Compliance with the Essential Health and Safety Requirements has been assured by compliance with

EN 60079-15 and EN 60079-0.

WARNING •This equipment must be installed in an enclosure providing at least IP54 protection

when applied in Zone 2 environments.

•This equipment shall be used within its specified ratings defined by Allen-Bradley.

•Provisions shall be made to prevent the rated voltage from being exceeded by

transient disturbances of more than 40% when applied in Zone 2 environments.

•This equipment must be used only with ATEX certified backplanes.

•Secure any external connections that mate to this equipment by using screws, sliding

latches, threaded connectors, or other means provided with this product.

•Do not disconnect equipment unless power has been removed or the area is known to

be nonhazardous.

ATTENTION This equipment is not resistant to sunlight or other sources of UV radiation.

6ControlLogix Power Supplies

Publication 1756-IN613A-EN-P - December 2008

Install the Power Supply

The chassis series you have determines what power supply you can use. The following table

lists the chassis that is to be installed with a respective power supply.

Follow these steps to install the power supply.

1. Align the power-supply circuit board with the card guides on the left side of the

chassis.

2. Guide the extended tab on the power-supply circuit board into the notch of the

chassis.

Chassis Compatibility

Power Supply Cat. No. Chassis Cat. No.

1756-PA72 Series C 1756-A4, 1756-A7, 1756-A10, 1756-A13, 1756-A17

Series A, B

1756-PB72 Series C

1756-PA75 Series B

1756-A4, 1756-A7, 1756-A10, 1756-A13, 1756-A17

Series B only

1756-PB75 Series B

1756-PC75 Series B

1756-PH75 Series B

20264a-M

43614

Notch

ControlLogix Power Supplies 7

Publication 1756-IN613A-EN-P - December 2008

3. Slide the power supply in until it is flush with the back of the chassis.

4. Fasten the power supply to the chassis.

44144

44145

8ControlLogix Power Supplies

Publication 1756-IN613A-EN-P - December 2008

Ground the Power Supply at Protective Earth Ground

The following steps describe how to connect the equipment-protective earth ground from

the power supply to the chassis.

1. Connect the equipment-protective earth ground from the power supply to the chassis.

2. Connect the protective-earth ground from the chassis to the system earth ground.

3. Tighten the nut on the equipment-protective earth ground terminal stud to a torque

of 1.4 N•m (12 lb•in).

Item Description

1 Wiring terminal block

2 Protective earth-ground terminal stud

3 Nut with captive star washer

4Equipment grounding conductor (ground lug with 2.1 mm2[14 AWG] wire) protective earth ground

from wiring terminal block to chassis

5 Nut with captive star washer

6Equipment grounding conductor (ground lug with 2.1 mm2[14 AWG] wire) protective earth ground

from chassis to ground bus

44146

ControlLogix Power Supplies 9

Publication 1756-IN613A-EN-P - December 2008

Verify the Grounding Configuration

Before continuing, verify that the Protective and Functional Earth grounds are connected to

the system. We recommend that you use a ground bus to reduce the electrical resistance at the

connection.

For more information on grounding the wiring to the ControlLogix chassis, refer to the

ControlLogix Chassis–Series B Installation Instructions, publication 1756-IN080.

TIP Keep wire lengths as short as possible.

20231a-M

Functional Earth Ground

Earth Ground

Protective Earth Ground

10 ControlLogix Power Supplies

Publication 1756-IN613A-EN-P - December 2008

Connect the Power

Use 2.5 mm2(14 AWG) 75 °C (167 °F) copper wire with 1.2 mm (3/64-in.) insulation to

connect power. Follow these steps for each wire (high side (L1), low side (L2/N), and

ground) to connect power.

1. Turn the screw counterclockwise to open the wiring terminal.

WARNING If you connect or disconnect wiring while the field-side power is on, an electrical arc can

occur. This could cause an explosion in hazardous location installations. Be sure that

power is removed or the area is nonhazardous before proceeding.

IMPORTANT The third terminal from the top (between low side and ground) is not used on the 1756

power supplies.

43894

1756-PA72 Series C, 1756-PA75 Series B

43632

1756-PB72 Series C, 1756-PB75 Series B,

1756-PH75 Series B, 1756-PC75 Series B

(AC Power Supplies)

(DC Power Supplies)

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