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Publication1734-IN058B-EN-P - June 2005

Installation Instructions

POINT I/O 24V dc Expansion Power Supply

Catalog N umber 1734-EP24DC, Series B

Inside . . .

For See Page

Important User Informat ion 2

Prevent ing Electrostat ic Discharge 3

Environment and Enclosure 4

N ort h Am erican Hazardous Locat ion A pproval 5

European Hazardous Locat ion Approval 6

About the Pow er Supply 8

Instal l the Pow er Supply 9

Remove t he Pow er Supply 10Replace the Pow er Supply 10

W ire the Pow er Supply 11

Specif icat ions 16
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2 POINT I/ O 24V dc Expansion Pow er Supply


Important User Information

Solid state equipment has operational characteristics diff ering from those of electromechanicalequipment. Safety Guidelines for the Application, Installation and M aintenance of Solid State Controls(Publication SGI-1.1 available from your local Rockwell Automation sales office or online athttp:/ / w w w.lit erature.rockw ellautomation.com) describes some important differences betw een solidstate equipment and hard-wired electromechanical devices. Because of this difference, and alsobecause of t he w ide variety of uses for solid st ate equipment, all persons responsible f or applying thisequipment must satisfy t hemselves that each intended application of t his equipment is acceptable.

In no event w ill Rockwel l Autom ation, Inc. be responsible or liable for indirect or consequenti al damagesresulting from the use or application of t his equipment.

The examples and diagrams in this manual are i ncluded solely for ill ustrati ve purposes. Because of the

many variables and requirements associated w ith any particular installation, Rockwell Automat ion, Inc.cannot assume responsibility or liability for actual use based on the examples and diagrams.

No patent l iabil i ty is assumed by Rockw ell Aut omation, Inc. w ith respect to use of information, circuits,equipment, or softw are described in this manual.

Reproduction of the contents of this manual, in w hole or in part, w ithout w ritten permission of Rockw ellAutomation, Inc., is prohibited.

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

WARNING Identif ies inform ation about pract ices or circumstances that can cause an explosion ina hazardous environment, w hich may lead to personal inj ury or death, property

damage, or economic loss.

IMPORTANT Identifies information t hat is critical for successful application and understanding ofthe product.

ATTENTION Identifies information about practices or circumstances that can lead to personalinjury or death, property damage, or economic loss. Attentions help you identify ahazard, avoid a hazard and recognize t he consequences.

SHOCK HAZARD

Labels may be located on or inside t he equipment (e.g., drive or motor) to alert peoplethat dangerous voltage may be present.

BURN HAZARD

Labels may be located on or inside t he equipment (e.g., drive or motor) to alert peoplethat surfaces may be dangerous temperatures.

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POINT I/O 24V dc Expansion Pow er Supply 3

Publication 1734-IN 058B-EN-P - June 2005

Preventing Electrostatic Discharge

ATTENTION This equipm ent is sensitive to electrostatic discharge,w hich can cause internal dam age and affect norm al

operation. Follow these guidelines w hen you handle this

equipm ent:

Touch a grounded object to discharge potential static.

W ear an approved grounding w riststrap.

D o not touch connectors or pins on com ponent

boards.

D o not touch circuit com ponents inside the

equipm ent.

If available, use a static-safe w orkstation.

W hen not in use, store the equipm ent in appropriate

static-safe packaging.

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Environment and Enclosure

ATTENTION This equipm ent is intended for use in a Pollution D egree2 industrial environm ent, in overvoltage Category II

applications (as defined in IEC publication 60664-1), at

altitudes up to 2000 m eters w ithout derating.

This equipm ent is considered G roup 1, Class A industrial

equipm ent according to IEC/CISPR Publication 11.

W ithout appropriate precautions, there m ay be potential

difficulties ensuring electrom agnetic com patibility in other

environm ents due to conducted as w ell as radiateddisturbance.

This equipm ent is supplied as open typeequipm ent. It

m ust be m ounted w ithin an enclosure that is suitably

designed for those specific environm ental conditions that

w ill be present and appropriately designed to prevent

personal injury resulting from accessibility to live parts.

The interior of the enclosure m ust be accessible only by

the use of a tool. Subsequent sections of this publicationm ay contain additional inform ation regarding specific

enclosure type ratings that are required to com ply w ith

certain product safety certifications.

See N EM A Standards publication 250 and IEC publication

60529, as applicable, for explanations of the degrees of

protection provided by different types of enclosure. Also,

see the appropriate sections in this publication, as w ell as

the Allen-Bradley publication 1770-4.1 (Industrial

Autom ation W iring and G rounding G uidelines), for

additional installation requirem ents pertaining to this

equipm ent.

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North American Hazardous Location Approval

The following information applies whenoperating this equipment in hazardouslocations:

Informations sur lutilisation de cet quipementen environnements dangereux:

Products marked CL I, DIV 2, GP A, B, C, D are suit ablefor use in Class I Division 2 Groups A , B, C, D, HazardousLocations and nonhazardous locations only. Each productis supplied w ith markings on the rating nameplateindicating the hazardous location temperature code. W hencombining products w ithin a system, t he most adversetemperature code (low est T number) may be used tohelp determine the overall temperature code of thesystem. Combinations of equipment in your system aresubject t o investigation by the local Aut hority Having

Jurisdiction at the time of i nstallation.

Les produits marqus CL I, DIV 2, GP A, B, C, D neconviennent qu une uti lisatio n en environnements de Classe IDivision 2 Groupes A, B, C, D dangereux et non dangereux.Chaque produit est l ivr avec des marquages sur sa plaquedidentification qui indiquent le code de temprature pour lesenvironnement s dangereux. Lorsque plusieurs produits sontcombins dans un systme, le code de temprature le plusdfavorable (code de temprature le plus faible) peut treutil is pour dterminer le code de temprature global dusystme. Les combinaisons dquip ements dans le systme

sont sujettes inspection par les autorits locales qualifiesau moment de l installation.

EXPLOSION HAZARD - Do not disconnect equipment unless

pow er has been removed or t he areais know n to be nonhazardous.

Do not disconnect connections tothis equipment unless power hasbeen removed or the area is knownto be nonhazardous. Secure anyexternal connections that mate tothis equipment by using screws,sliding latches, threaded

connectors, or other means providedw ith this product.

Substitut ion of components mayimpai r suitabili ty for Class I, Division2.

If t his product contains batteries,they must onl y be changed in anarea known to be nonhazardous.

RISQUE DEXPLOSION Couper le courant ou sassurer que

lenvironnement est class nondangereux avant de dbrancherl'quipement.

Couper le courant ou s'assurer quelenvironnement est class nondangereux avant de dbrancher lesconnecteurs. Fixer t ous lesconnecteurs externes relis cetquipement l'aide de vis, loquets

coulissants, connecteurs filets ouautres moyens fourni s avec ceproduit.

La substitution de composants peutrendre cet quipement inadapt uneutil isation en environnement deClasse 1, Division 2.

Sassurer que lenvironnement estclass non dangereux avant dechanger les piles.

WARNING AVERTISSEMENT

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European Hazardous Location Approval

European Zone 2 Certification (The following applies when the product bears theEEx marking.)This equipment is intended f or use in potentiall y explosive atmospheres as defined by

European Union Direct ive 94/ 9/ EC.

DEM KO certif ies that thi s equipment has been found to comply wi th the Essential Health

and Safety Requirement s relating to t he design and construction of Category 3 equipment

intended f or use in potenti ally explosive atmospheres, given in Annex II to thi s Directive.

The examinat ion and test results are recorded in confident ial report N o 03NK30347.

Compliance w ith t he Essential Health and Safet y Requirements has been assured bycompliance with EN 50021.

IMPORTANT O bserve the follow ing additional Zone 2 certification

requirem ents.

This equipm ent is not resistant to sunlight or

other sources of U V radiation. The secondary of a current transform er shall not

be open-circuited w hen applied in Class I, Zone

2 environm ents.

Equipm ent of lesser Enclosure Type Rating m ust

be installed in an enclosure providing at least

IP54 protection w hen applied in Class I, Zone 2

environm ents.

This equipm ent shall be used w ithin its specified

ratings defined by Allen-Bradley.

Provision shall be m ade to prevent the rated

voltage from being exceeded by transient

disturbances of m ore than 40% w hen applied in

Class I, Zone 2 environm ents.

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ATTENTION D o not connect 120/240V ac to the 1734-EP24D Cterm inals. D am age to the supply w ill result.

ATTENTION U se the 1734-EP24D C expansion pow er supply only w ith

1734 PO IN T I/O adapters, such as the 1734-AD N

D eviceN et adapter.

ATTENTION PO IN T I/O is grounded through the D IN rail to chassis

ground. U se zinc plated yellow -chrom ate steel D IN rail to

assure proper grounding. The use of other D IN rail

m aterial (e.g., alum inum , plastic, etc.) that can corrode,

oxidize, or are poor conductors, can result in im proper orinterm ittent grounding.

Secure D IN rail to m ounting surface approxim ately every

200 m m (7.8 inches).

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About the Power Supply

The expansion pow er supply passes 24V dc field pow er to the I/O

m odules to the right of it. The expansion pow er supply extends thebackplane bus pow er for up to 17 I/O m odules to the right of the

supply and creates a new field voltage partition segm ent for driving

field devices. The expansion pow er supply separates field pow er

from I/O m odules to the left of the unit, effectively providing

functional and logical partitioning for the follow ing.

Separate field pow er betw een input and output m odules.

Separate field pow er to the analog and digital m odules. G roup m odules to perform a specific task or function.

The dark-gray color of the expansion pow er supply allow s for easy

visual inspection and identification. Refer to the figure to identify

external pow er supply com ponents.

U se m ultiple expansion pow er supplies w ith PO IN T I/O adapters to

assem ble a full system . W ith any PO IN T I/O adapter, use an

expansion pow er supply to add additional m odules in 4-17 m oduleincrem ents, for a total of 63 I/O m odules.

Interlocking SidePieces

Module

Label

DIN Rail Locking

Screw (orange)

RTB Removal

Handle

Removable

Terminal

Block (RTB)

43970

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Install the Power Supply

To install the expansion pow er supply on the D IN rail, proceed as

follow s.

1. Position the pow er supply vertically above the D IN rail.

2. Engage the interlocking side pieces w ith the unit on the left.

3. Press dow n firm ly to install the pow er supply on the D IN rail.

The locking m echanism locks the m odule to the D IN rail.

Remove the Power Supply

To rem ove an expansion pow er supply, proceed as follow s.

WARNING W hen you insert or rem ove the m odule w hile

backplane pow er is on, an electrical arc can occur.

This could cause an explosion in hazardous

location installations.

Be sure that pow er is rem oved or the area is

nonhazardous before proceeding. Repeated

electrical arcing causes excessive w ear to contactson both the m odule and its m ating connector. W orn

contacts m ay create electrical resistance that can

affect m odule operation.

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1. Pull up on the RTB rem oval handle to rem ove the term inal

block.

2. Rem ove the m odule to the right of the 1734-EP24D C m odule

from its base unit.

3. U se a sm all-bladed screw driver to rotate the D IN rail lockingscrew to a vertical position.

This releases the locking m echanism .

4. Lift straight up to rem ove.

Replace the Power SupplyTo install a replacem ent expansion pow er supply, proceed as follow s.

WARNING W hen you connect or disconnect the rem ovable

term inal block (RTB) w ith field-side pow er applied,

an electrical arc can occur. This could cause an

explosion in hazardous location installations.

Be sure that pow er is rem oved or the area is

nonhazardous before proceeding.

42511

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1. Rem ove the m odule to the right of the pow er supply from its

base unit.

2. Position the pow er supply vertically above the D IN rail.

3. Slide the pow er supply dow n allow ing the interlocking side

pieces to engage the adjacent m odules (both left and right

sides).

4. Press firm ly to seat the pow er supply on the D IN rail.

The pow er supply locking m echanism snaps into place.

5. Reinsert the m odule into the base next to the expansion

pow er supply.

Wire the Power Supply

WARNING If you connect or disconnect w iring w hile the field-side

pow er is on, an electrical arc can occur. This could cause

an explosion in hazardous location installations. Be sure

that pow er is rem oved or the area is nonhazardous before

proceeding.

ATTENTIONU se the 1734-EP24D C expansion pow er supply only w ith

adapter class products.

ATTENTION U se the 1734-EP24D C expansion pow er supply only w ith

1734 PO IN T I/O adapters, such as the 1734-AD N

D eviceN et adapter.

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12/24Vdc Wiring

NC = No Connection

CHAS GND = Chassis Ground

C = Common

V = Supply

41970

NC

C

V V

NC

CHAS GNDCHAS GND

C

NC NC

C

V V

C

CHASGND

V dc

This supply w ill beconnected to the

internal f ield pow er

bus.

EP24

V = 12/ 24V dc C = Comm onCHAS GND = Chassis Ground

3

5

7

0 1

2

4

6

12/ 24V dc

CHASGND

Do not connect

120/240V ac pow er to

this supply.

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Example of Continuing Power

Connect Terminal Terminals (for continuing power)

+V dc 6 7

-V dc 4 5

Chas Gnd 2 3

12/ 24V dc becomes the internal f ield pow er bus for modules to the right.

1

r

1734adn4

Adapter

Status

DeviceNet

Status

PointBusStatus

IB

2

IB

4

OB

2E

OB

4E

ADN

IE

2C

IE

2C

OE

2C

EP24DC

0 1 0 1 0 1 0 10 1 0 10 10 1

SystemPower

Powe rDeviceNet

Example of Continued Pow er12/ 24V dc only

1734 -EP24DC1734-ADN

SystemPower

PowerDeviceNet

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Example of Functional Partitioning

1

r

1734adn4

Adapter

Status

DeviceNet

Status

PointBusStatus

IB2

IB4

OB2E

OB4E

ADN

IE2C

IE2C

OE2C

EP24DC

0 1 0 1 0 1 0 10 1 0 10 10 1

SystemPower

Powe rDeviceNet

12/24V dc

Digital Supply

1734 -EP24DC1734-ADN

12/ 24V dc

AnalogSupply

System

Power

Devi ceNetPower

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Example of Logical Partitioning

1

r

1734adn4

Adapter

Status

DeviceNet

Status

PointBusStatus

IE2C

OE2C

IB2

OB2E

ADN

IB2

OB2E

OB4E

EP24DC

0 1 0 1 0 1 0 10 1 0 10 10 1

SystemPower

Powe rDeviceNet

24V dc Supply

1734 -EP24DC1734-ADN

12V dc

Supply

Sta tu sPower

PowerDeviceNet

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Specifications

1734-EP24DC POINT I/O 24V dc Expansion Power Supply

Specification Value

I/ O M odul e Capaci ty 4-17 m odul es, dependi ng on current ra ti ng of each m odul e

Input Voltage Rat ing 24V dc nominal

10 28.8V dc range

Field Side Power

Requirements

24V dc (+20% = 28.8V dc maximum) @ 400 m A m aximum

Inrush Current 6 A maximum for 10 ms

Indicators 1 Green Field Pow er Status Indicator

1 Green 5V System Pow er Indicator

POINTBus Ou tput Current Hori zontal mount i ng -

1 A at 10 19.2V input;

1.3 A at 19.2 28.8V input

Vertical mount ing -1 A at 10 28.8V input

Input Overvoltage Protect ion Reverse polari ty protected

Interrupt ion Output voltage w il l stay w ithin specif icat ions w hen input

drops out for 10ms at 10V wit h maximum load.

M odule Locat ion Betw een I/ O modules in 1734 system

Breaks field pow er bus

Limitat ions Use w ith POINT I/ O Adapters only

Dimensions mil l imeters

inches

76.2H x 25.4W x 133.4L mm

(3.00H x 1.00W x 5.25L in)

W eight 0.12 kg (0.27 lb)

Terminal Base Screw Torque 0.6 Nm (7 lb-in)

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General Specifications

Specification ValuePow er Consumpt ion 9.8 W maximum @ 28.8V dc

Pow er Dissipat ion 3.0 W maximum @ 28.8V dc

Thermal Dissipat ion 10.0 BTU/ hr maximum @ 28.8V dc

Isolation Voltage

(continuous-voltage

withstand rating)

50V continuous

Tested to w ithstan d 2600V dc for 60 s

Field Pow er Bus

Supply Volt age

Voltage Range

Supply Current

24V dc nominal

10 28.8V dc range

10 A maximum

Environmental Specifications

Specification Value

Operat ional Temperature IEC 60068-2-1 (Test Ad, Operat ing Cold),

IEC 60068-2-2 (Test Bd, Operating Dry Heat),

IEC 60068-2 -14 (Test Nb , Operating Thermal Shock)

-20 ...55 C (-4...131 F)

Storage Temperature IEC60068-2 -1 (Test Ab , Unpackaged Non-operat i ng Cold)

IEC60068-2-2 (Test Bb, Unpackaged Non-operat ing Dry

Heat)

IEC60068-2-14 (Test N a, Unpackaged Non-opera ti ngThermal Shock)

-40...85C (-40...185 F)

Relat ive Humidity IEC60068-2-30

(Test Db, Unpackaged Non-operating Damp Heat)

5...95% non-condensing

Shock Operat ing IEC60068-2-27 (Test Ea, Unpackaged Shock) 30 g

Shock Non-opera ti ng IEC60068-2 -27 (Test Ea, Unpackaged Shock) 50 g

Vibrat ion IEC 60068-2-6 (Test Fc, Operat ing)

5 g @ 10-500 Hz

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Emissions CISPR 11: Group 1, Class AESD Immunity IEC6100-4-2

6 kV contact discharges

8 kV air discharges

Radiated RF Immunity IEC 61000-4-3

10V/ m w ith 1 KHz sine-wave 80% AM

from 30 M Hz to 2000 M Hz

10V/ m w ith 200 Hz 50% Pulse 100% AM at 900 M Hz

10V/ m w ith 200 Hz 50% Pulse 100% AM at 1890 M Hz

EFT/ B Immunity IEC 61000-4-4

+4 kV at 2.5 kHz on pow er ports

Surge Transi ent Im muni ty IEC 61000-4 -5

+1 kV line-line (DM ) and + 2kV line-earth (CM )

on power ports

Conduct ed RF Immunit y IEC61000-4-6

10Vrms w ith 1 kHz sine-w ave 80% AMfrom 150 kHz to 80 M Hz

Enclosure Type Rat ing N one (open-style)

Conductor Size #22 #14 AW G (0.324 2.08 sq. mm)

solid or stranded copper w ire rated @ 75 C or greater

3/ 64 inch (1.2 mm) insulati on maximum

Conductor Category1 1 - on pow er ports

1 Use this Conductor Category information for planning conductor routing. Refer to publ ication1770-4.1, Industrial Automation Wiring and Grounding Guidelines.


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Current Derating for Mounting


1.3

1.0

0.5Horizontal - 1A @ (10-19.2V); 1.3A @ (19.2-28.8)Vertical - 1A @ (10-28.8V)

10 19.2 28.8

Voltage

Current

43971

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Publication1734-IN058B-EN-P - June 2005 PN 957955-68

Certifications

Certifications1

(w hen product is marked)

c-UL-us UL Listed Industri al Cont rol Equipm ent ,certifi ed for U.S. and Canada

c-UL-us UL Listed for Class I, Division 2, Group A,B,C,D

Hazardous Locations, certi fi ed for U.S. and Canada

CE European Union 89/ 336/ EEC EM C Direct ive,

compliant with:

EN 50082-2; Industrial Imm unity

EN 61326; M eas./Control/ Lab., Industrial

Requirements

EN 61000-6-2; Industrial Immunit y EN 61000-6-4; Industri al Emissions

C-Tick Australian Radiocommunicat ions Act,

compliant w ith:

AS/ NZS CISPR11; Industri al Emissions

EEX European Union 94/ 9/ EC ATEX Direct ive,

compliant w ith:

EN 50021; Potent ially Explosive At mospheres,

Protection n (Zone 2)

1 See the Product Certif ication link at w w w.ab.com for Declarations of Conform ity, Certif icates,and other certification details.

PO IN T I/O and PO IN TBus are tradem arks of Rockw ell Autom ation.

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