Allen-bradley 1771-p7 User manual

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  



(Cat. No. 1771-P7 Series D)

This document provides you with the following information:

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Because of the variety of uses for the products described in this

publication, those responsible for the application and use of this

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.

In no event will the Allen-Bradley Company 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, the

Allen-Bradley Company cannot assume responsibility or liability for

actual use based on the examples and diagrams.

Allen-Bradley publication SGI-1.1, “Safety Guidelines for the

Application, Installation and Maintenance of Solid State Controls”

describes some important differences between solid state equipment

and hard–wired electromechanical devices that should be taken into

consideration when applying products such as those described in this

publication.

Reproduction of the contents of this manual, in whole or in part,

without written permission of the Allen-Bradley Company is

prohibited.

  

Installation Instructions

  

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AC (120/220V) 16A Power Supply2

     

Throughout this document 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.

Attentions help you:

•identify a hazard

•avoid the hazard

•recognize the consequences

ATTENTION

!

Identifies information about practices or

circumstances that 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.

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AC (120/220V) 16A Power Supply 3

     

ATTENTION

!

Environment and Enclosure

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

meters 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 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.

See NEMA Standards publication 250 and IEC

publication 60529, as applicable, for explanations

of the degrees of protection provided by different

types of enclosures. Also, see the appropriate

sections in this publication, as well as the

Allen–Bradley publication 1770–4.1, (“Industrial

Automation Wiring and Grounding Guidelines”),

for additional installation requirements pertaining

to this equipment.

The 1771-P7 power supply can power one 1771-A1B, -A2B, -A3B,

-A3B1, or -A4B I/O chassis when used with any adapter module or

programmable controller (Mini-PLC-2/02, Mini-PLC-2/05,

Mini-PLC-2/16, Mini-PLC-2/17, or PLC-5family processor)

that does not have an internal power supply.

IMPORTANT The power supply is not compatible with the

1771-A1, -A2, or -A4 I/O chassis.

  

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AC (120/220V) 16A Power Supply4

     

!

ATTENTION The 1771-P7 is a stand-alone power supply. Do

not connect it in parallel with any other power

supply. Connecting it in parallel could result in

processor memory loss or injury due to

unexpected machine operation.

!

WARNING When used in a Class I Division 2 hazardous

location, this equipment must be mounted in a

suitable enclosure with a proper wiring method

that complies with governing electrical codes.

!

ATTENTION Preventing Electrostatic Discharge

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.

•If available, use a static–safe workstation.

•When not in use, keep modules in appropriate

static–safe packaging.

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AC (120/220V) 16A Power Supply 5

Publication 1771ĆIN056B EN-P - December 2001

Before installing the power supply, you should:

•mount the I/O chassis that the power supply will be connected to.

See the Universal I/O Chassis Installation Data (1771-2.210) for

information on mounting the I/O chassis.

•set the power supply configuration jumper on the I/O chassis.

The 1771-P7 is an external power supply. Set the configuration

jumper to the N position.



Using

Power Supply

Module in

the Chassis?

12620ĆI

The power supply has a D-shell power connector that provides

power to the I/O chassis backplane.

A1

3

4

5

A2

1

2

A1 backplane common

A2 backplane +5 dc

1 no connection

2 backplane processor enable

3 backplane +5 dc sense

4 backplane signal ground sense

5 no connection

bottom view of power supply 13445

If you ha e this I/O chassis Use this power cable1To connect a 1771ĆP7 mounted

1771ĆA3B 1771ĆCP2 within 1.52m (5ft) of the I/O chassis

1771ĆA1B, ĆA2B, ĆA3B1, or ĆA4B 1771ĆCP1 within 0.32m (1.04ft) on the leftĆside of the I/O chassis

1771ĆCP2 within 1.52m (5ft) of the I/O chassis

1771ĆCP3

(right angle connector) within 1.68m (5.5ft) of the I/O chassis

1Power supply cable is not shipped with the power supply.

If you are mounting the power supply Go to

on the left side of a panelĆmounted I/O chassis next section

separately from an I/O chassis page 9

Install the 1771ĆP7 and

Connect Backplane Power

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AC (120/220V) 16A Power Supply6

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Attaching to a PanelĆmounted I/O Chassis

1. Attach the mounting screws to the side of the I/O chassis:

!

ATTENTION Use the mounting screws provided with the

1771-P7. Longer screws may intrude into the

I/O chassis and interfere with module

insertion.

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!&#"

#!%" &#"

Tighten this sc ew until snug,

plus 1/4 tu n (about 29

pound-inches).

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  !&#"#

Loosely attach these sc ews.

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

2. Connect the power cable (ordered separately) to the D-shell

connector on the I/O chassis and tighten the connector screws.

!

WARNING If you connect or disconnect the power supply

cable with power applied an electrical arc can

occur. This could cause an explosion in hazardous

location installations. Be sure power is removed

or the area is nonhazardous before proceeding.

'# ! $!"

' 

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

Tighten connecto sc ews

until snug, plus 1/4 tu n).

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AC (120/220V) 16A Power Supply 7

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3. Slide the power supply onto the left side of the chassis:

&

# "  """

Slide power supply down.

Place keyhole slot over

large screw on I/O chassis.

Make sure mounting brackets

are behind the small screws. 

4. Tighten the small screws until snug, plus 1/4 turn (about 29

pound–inches), to secure the power supply to the I/O chassis.

&

# "  """

&

" "!%"

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AC (120/220V) 16A Power Supply8

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5. Attach the other end of the power cable to the D-shell connector

on the bottom of the power supply and tighten the connector

screws.

!

WARNING If you connect or disconnect the power supply

cable with power applied an electrical arc can

occur. This could cause an explosion in hazardous

location installations. Be sure power is removed

or the area is nonhazardous before proceeding.

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&"  # !

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&

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

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    

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AC (120/220V) 16A Power Supply 9

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Mounting the Po er Supply Separately

When mounted separately, the power supply may be mounted above

or next to the I/O chassis. It may not be mounted below, since it is

necessary to allow convection cooling of both the power supply and

the I/O chassis. A minimum vertical distance of 6 inches (15.2cm)

should be maintained.

1. Mount the power supply vertically, above and within the specified

cable-feet (for your cable) of the D-shell connector on the I/O

chassis.

Allo for a generous bend of the

1771ĆCP2 or 1771ĆCP3 cable to reduce

stress on the connectors mounted on

the chassis and the po er supply.

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)

I

O

2. Connect one end of the power cable to the D-shell connector

located on the bottom of the power supply and tighten the

connector screws until snug, plus 1/4 turn.

 !# ) 

)

! %!# $#'$

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AC (120/220V) 16A Power Supply10

      

!

WARNING If you connect or disconnect the power supply

cable with power applied an electrical arc can

occur. This could cause an explosion in hazardous

location installations. Be sure power is removed

or the area is nonhazardous before proceeding.

3. Connect the other end of the power cable to the D-shell connector

on the I/O chassis and tighten the connector screws until snug,

plus 1/4 turn.

        



 



 

 

 

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I

0

I

POWER

0



!

AC (120/220V) 16A Power Supply 11

  !    

The power supply operates on nominal 120V ac or 220V ac

input source.

1. Make sure the power switch is set to 0 (off).

2. Use a 1/8” slotted screwdriver to set the input-voltage

selector switch.

!

WARNING Do not set the input voltage selector switch with

power applied. This could cause an electrical arc

which could cause an explosion in hazardous

location installations. Be sure power is removed

or the area is nonhazardous before proceeding.

!

ATTENTION To avoid damaging the power supply, do not

place the screwdriver blade more than 3/8”

into the switch slot.

For an input voltage of Set the voltage selector switch to

      

    

 

3. Connect the ac power line to the terminal strip on the

power supply.

!

WARNING If you connect or disconnect the ac power line to

the terminal strip with power applied an electrical

arc can occur. This could cause an explosion in

hazardous location installations. Be sure power is

removed or the area is nonhazardous before

proceeding.

!

ATTENTION You must connect a 14 AWG wire from the GND

terminal to the ground bus to provide an adequate

safety ground.

Connect ac Power Source

to the Power Supply

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P/S

A tive

12627ĆI

I

O

AC (120/220V) 16A Power Supply12

Publi ation 1771ĆIN056B EN-P - De ember 2001

Line 1

Line 2 or

neutral

Ground

Bus

ac power connectors

Grounding ele trode

ondu tor

a power

( ustomer

supplied)

A 3A 250V normalĆblow fuse prote ts the input line L1 from drawing more than 3 amperes.

14 AWG

L1

L2/N

GND

entral ground bus (earth ground)

low side of the line power

high side of the line power

Connect

12626ĆI

I

O

The power supply has a green P/S ACTIVE LED that provides status

indication during power supply operation.

Normal operation If indicator is Then

on off it may be due to:

input voltage not within spe ified range

blown fuse

over urrent

Important: If a shutdown condition occurs, wait 15 seconds before

attempting to apply power.

For additional assistance, contact your local Allen-Bradley

representative.

Use these graphs to determine your:

•cooling requirements

•power cost

•transformer size (unless the transformer manufacturer has a

recommended multiplier for sizing a transformer for an ac-to-dc

power supply)

0

4

8

12

16

20 60 100 140 180

0

4

8

12

16

0 306090120

Apparent Power (VA) Real Power (Watts)

Backplane

Load Current

(Amps)

0

4

8

12

16

0 75 150 225 300

Transformer Sizin (VA) =

Real Power (Watts) x 2.5

Troubleshootin

Power Ratin s

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







!$ #  









&





!

AC (120/220V) 16A Power Supply 13

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 

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AC (120/220V) 16A Power Supply14

Public tion 1771ĆIN056B EN-P - December 2001

The f ll wing inf rmati n applies when perating this equipment in hazard us l cati ns:

Products m rked CL I, DIV 2, GP A, B, C, D" re suit ble for use in Cl ss I Division 2 Groups A, B, C, nd D

H z rdous Loc tions nd nonh z rdous loc tions only. E ch product is supplied with m rkings on the r ting n mepl te

indic ting the h z rdous loc tion temper ture code. When combining products within system, the most dverse

temper ture code (lowest T" number) m y be used to help determine the over ll temper ture code of the system.

Combin tions of equipment in your system re subject to investig tion by the loc l Authority H ving Jurisdiction t the

time of inst ll tion.

!

WARNING EXPLOSION HAZARD -

•Do not disconnect equipment unless power h s been removed or the re is known to be

nonh z rdous.

•Do not disconnect connections to this equipment unless power h s been removed or the re

known to be nonh z rdous. Secure ny extern l connections th t m te to this equipment by

screws, sliding l tches, thre ded connectors, or other me ns provided with this product.

•Substitution of components m y imp ir suit bility for Cl ss I, Division 2.

•If this product cont ins b tteries, they must only be ch nged in n re known to be

nonh z rdous.

Inf rmati ns sur l'utilisati n de cet équipement en envir nnements dangereux:

Les produits m rqués CL I, DIV 2, GP A, B, C, D ne conviennent que une utilis tion en environnements de Cl sse I

Division 2 Groupes A, B, C, D d ngereux et non d ngereux. Ch que produit est livré vec des m rqu ges sur s

pl que d'identific tion qui indiquent le code de tempér ture pour les environnements d ngereux. Lorsque plusieurs

produits sont combinés d ns un systéme, le code de tempér ture le plus déf vor ble (code de tempér ture le plus

f ible) peut e tre utilisé pour déterminer le code de tempér ture glob l du systéme. Les combin isons d'equipements

d ns le systéme sont sujettes à inspection p r les utorités loc les qu lifiées u moment de l'inst ll tion.

!

AVERTISSEMENT RISQUE D'EXPLOSION -

•Couper le cour nt ou s' ssurer que l'environnement est cl ssé non d ngereux v nt de

débr ncher l'équipement.

•Couper le cour nt ou s' ssurer que l'environnement est cl ssé non d ngereux v nt de

débr ncher les connecteurs. Fixer tous les connecteurs externes reliés à cet équipement à

l' ide de vis, loquets couliss nts, connecteurs filetés ou utres moyens fournis vec ce prod

u

•L substitution de compos nts peut rendre cet équipement in d pté à une utilis tion en

environnement de Cl sse 1, Division 2.

•S' ssurer que l'environnement est cl ssé non d ngereux v nt de ch nger les piles.

PLC-2/02, PLC-2/05, PLC-2/16, and PLC-2/17 are trademarks of Allen-Bradley Company, Inc.

WWW.100Y.COM.TW WWW.100Y.COM.TW WWW.100Y.COM.TW

AC (120/220V) 16A Power Supply 15

Publication 1771ĆIN056B EN-P - December 2001

Supply Voltage Range 120V ac: 97Ć132V ac 50/60 z 2.0A

220V ac: 195Ć264V ac 50/60 z 1.3A

Input Power (Real/Apparent) 108 Watts/176VA maximum (see charts)

External Transformer 270VA at full load

Isolation Voltage Tested to 1200V ac for 1s

Output Voltage 5.06V dc ±3.8%

Output Current 16A max @ 5V dc

Power Loss Time Delay Ċ

Input Power to Processor Disable 13.6ms ±2.9ms

Maximum User-supplied Overcurrent

Protection115A

Fuse23A, 250V 3AG normal blow

(Bussmann AGC 3 Ċ Littelfuse 312003)

Conductor Wire Size

Allen-Bradley 1771-p7 User manual

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