Allen-Bradley Series B Manuale utente

Publication 1771-IN036C-EN-P - July 2002

DC (10-30V) Output Module

Cat. No. 1771–OVN Series B

This document provides information on:

See page

Important User Information 1

Preinstallation Consi erations 4

Calculate Power Requirements 4

Initial Han ling 5

Key the I/O Chassis 5

Install the Mo ule an Fiel Wiring Arm 6

Connect Wiring to the Fiel Wiring Arm 7

Replacing the Fuse 10

For this reference information See page

Intepreting the Status In icators 10

Hazar ous Location Approval 11

Specifications 12

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

publication, those responsible for the application and use of these

products 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 Rockwell Automation be

responsible or liable for indirect or consequential damage resulting

from the use or application of these products.

Any illustrations, charts, sample programs, and layout examples

shown in this publication are intended solely for purposes of

example. Since there are many variables and requirements associated

with any particular installation, Rockwell Automation does not

assume responsibility or liability (to include intellectual property

liability) for actual use based upon the examples shown in this

publication.

Important User Information

Installation Instructions

To The Installer

DC (10–30V) Output Module2

Publication 1771-IN036C-EN-P - July 2002

Allen–Bradley publication SGI–1.1, Safety Guidelines for

Application, Installation, and Maintenance of Solid–State Control

(available from your local Rockwell Automation 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 publication, notes may be used to make you aware

of safety considerations. The following annotations and their

accompanying statements help you to identify a potential hazard,

avoid a potential hazard, and recognize the consequences of a

potential hazard.

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 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.

DC (10–30V) Output Module 3

Publication 1771-IN036C-EN-P - July 2002

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.

DC (10–30V) Output Module4

Publication 1771-IN036C-EN-P - July 2002

ATTENTION reventing 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.

The Series B 1771-OVN dc output module is a sink output and

requires a source input. A source input provides a positive voltage

path and a sink output provides a path to ground.

You must use this module in a 1771-A1B, -A2B, -A3B, -A3B1,

-A4B or later 1771 I/O chassis. Refer to the table below for

processor compatibility.

Table A rocessor Compatibility Chart

System Type Use with rocessors:

Local MiniĆPLCĆ2/02 (cat. no. 1772ĆLZ, ĆLZP)

MiniĆPLCĆ2/16 (cat. no. 1772ĆLX, ĆLXP)

MiniĆPLCĆ2/17 (cat. no. 1772ĆLW, ĆLWP)

PLCĆ5/15, Series B an later (cat. no. 1785ĆLT)

Remote (with a 1771ĆASB

remote I/O a apter)

PLCĆ2/20 (cat. no. 1772ĆLP2)

PLCĆ2/30 (cat. no. 1772ĆLP3)

PLCĆ3 (cat. no. 1775ĆL1, ĆL2, ĆL3, ĆL4)

PLCĆ3/10 (cat. no. 1775ĆLP4, ĆLP8)

PLCĆ5/15, Series B an later (cat. no. 1785ĆLT)

Do not place this module in the same I/O chassis as the 1771-IX

thermocouple module. You can use this module in the same chassis

as the 1771-IXE thermocouple module.

The controller or I/O chassis power supply, connected through the

backplane of the I/O chassis, powers the logic circuitry of the output

modules. The maximum current drawn from this supply is 330mA.

reĆinstallation

Considerations

Calculate ower Supply

Requirements

DC (10–30V) Output Module 5

Publication 1771-IN036C-EN-P - July 2002

ATTENTION Remove power from the 1771 I/O chassis

backplane and field wiring arm before removing

or installing an I/O module.

•Failure to remove power from the backplane or

wiring arm could cause module damage,

degradation of performance, or injury.

•Failure to remove power from the backplane

could cause injury or equipment damage due to

possible unexpected operation.

ATTENTION A module inserted into a wrong slot could be

damaged by improper voltages connected through

the wiring arm. Use keying bands to prevent

damage to the module.

Place your module in any slot in the chassis

except the leftmost slot, which is reserved for

processors or adapters.

Observe the following precautions

when inserting or removing keys:

•insert or remove keys with your

fingers

•make sure that key placement is

correct

Incorrect keying or the use of a tool

can result in damage to the

backplane connector and possible

system faults.

ATTENTION

Position the keying ban s in the backplane connectors to correspon to

the key slots on the mo ule.

You can change the position of these ban s if

subsequent system esign an rewiring makes

insertion of a ifferent type of mo ule necessary.

Upper Connector

11022ĆI

I/O chassis

Place the keying ban s:

- between 14 an 16

- between 32 an 34

The 1771–OVN module is a modular component of the 1771 I/O

system requiring a properly installed system chassis. Refer to

publication 1771–IN075 for detailed information on acceptable

chassis, proper installation and grounding requirements.

Initial Handling

rocedures

Keying the I/O Chassis

DC (10–30V) Output Module6

Publication 1771-IN036C-EN-P - July 2002

ATTENTION Remove power from the 1771 I/O chassis

backplane and field wiring arm before removing

or installing an I/O module.

•Failure to remove power from the backplane or

wiring arm could cause module damage, degra-

dation of performance, or injury.

•Failure to remove power from the backplane

could cause injury or equipment damage due to

possible unexpected operation.

Swing the chassis locking bar own into place to secure

the mo ules. Make sure the locking pins engage.

1771ĆA1B, ĆA2B, ĆA3B, ĆA3B1, ĆA4B I/O chassis 1771ĆA1B, ĆA2B, ĆA3B1, ĆA4B Series B I/O chassis

locking tab

car gui es

mo ule

19809

car gui es

locking bar

locking bar pin

Snap the chassis latch over

the top of the mo ule to secure it.

17643

wiring arm

install

remove

horizontal bar

Attach the wiring arm (1771ĆWN) to the horizontal

bar at the bottom of the I/O chassis.

The wiring arm pivots upwar an connects with

the mo ule so you can install or remove the

mo ule without isconnecting the wires. 1771ĆWN

WARNING If you insert or remove the module while

backplane power is on, or you connect or

disconnect the wiring arm with field 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.

Install the Module and

Field Wiring Arm

DC (10–30V) Output Module 7

Publication 1771-IN036C-EN-P - July 2002

WARNING When you connect or disconnect the wiring arm

with field 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 Remove power from the 1771 I/O chassis

backplane and field wiring arm before removing

or installing an I/O module.

•Failure to remove power from the backplane or

wiring arm could cause module damage,

degradation of performance, or injury.

•Failure to remove power from the backplane

could cause injury or equipment damage due to

possible unexpected operation.

Make wiring connections to the module through the field wiring arm

cat. no. 1771-WN. The arm pivots on the I/O chassis to connect with

terminals on the front of the module and acts as a terminal strip. The

wiring arm allows the module to be removed from the chassis

without disconnecting wiring.

ATTENTION The field wiring arm terminal identification

number is not the same as the number of the bit

which controls that output.

I/O Module Groups

Each module condenses two full module groups (32 outputs) into

each I/O chassis slot. For example:

Module group 1 = inputs 00 through 17

Module group 2 = inputs 00 through 17 (module group 2

represents the second set of outputs).

Terminals 1 through 20 represent module group 1. Terminals 21

through 40 represent module group 2. Terminals 10, 20, 30 and 40

are DC common and terminals 1, 11, 21 and 31 are DC power.

Connect Wiring to the

Module

DC (10–30V) Output Module8

Publication 1771-IN036C-EN-P - July 2002

Connection Diagram for the 1771ĆOVN/B DC Output Module

Output 0

Output 2

Output 4

Output 6

Common 0

Output 10

Output 12

Output 14

Output 16

Common 1

Output 0

Output 2

Output 4

Output 6

Common 2

Output 10

Output 12

Output 14

Output 16

Common 3

+ c

Output 1

Output 3

Output 5

Output 7

+ c

Output 11

Output 13

Output 15

Output 17

+ c

Output 1

Output 3

Output 5

Output 7

+ c

Output 11

Output 13

Output 15

Output 17

Supply

c Output

Device

Note: Terminals on the left are even

numbere (2 thru 40) , an terminals

on the right are o numbere

(1 thru 39). 2

Actual wiring runs in this irection. 10435ĆI

Terminals 1 through 20 represent mo ule group 1.

Terminals 21 through 40 represent mo ule group 2.

Terminals 10, 20, 30 an 40 are c common an

terminals 1, 11, 21, an 31 are c power.

If multiple power sources are use , o not excee the specifie isolation voltage.

ATTENTION Observe proper polarity, as indicated in the

connection diagram with dc power connections.

Reverse polarity, or application of ac voltage,

could damage the module.

ATTENTION Miswiring or shorting the output terminals will

cause permanent damage to this module.

DC (10–30V) Output Module 9

Publication 1771-IN036C-EN-P - July 2002

Table B

Module Output Terminal Assignments

Terminal

Number Output Assignment I/O program address Terminal

Number Output Assignment I/O program address

01 110 to 30V c Ć 21 110 to 30V c Ć

02 Output 00 0RG00 22 Output 00 0RG00

03 Output 01 0RG01 23 Output 01 0RG01

04 Output 02 0RG02 24 Output 02 0RG02

05 Output 03 0RG03 25 Output 03 0RG03

06 Output 04 0RG04 26 Output 04 0RG04

07 Output 05 0RG05 27 Output 05 0RG05

08 Output 06 0RG06 28 Output 06 0RG06

09 Output 07 0RG07 29 Output 07 0RG07

10 Common 0 Ć 30 Common 2 Ć

11 110 to 30V c Ć 31 110 to 30V c Ć

12 Output 10 0RG10 32 Output 10 0RG10

13 Output 11 0RG11 33 Output 11 0RG11

14 Output 12 0RG12 34 Output 12 0RG12

15 Output 13 0RG13 35 Output 13 0RG13

16 Output 14 0RG14 36 Output 14 0RG14

17 Output 15 0RG15 37 Output 15 0RG15

18 Output 16 0RG16 38 Output 16 0RG16

19 Output 17 0RG17 39 Output 17 0RG17

20 Common 1 Ć 40 Common 3 Ć

Where: R = rack number (1, 2, 3, etc.)

G = I/O group (0 Ć 7)

1You can connect a ifferent power supply to each 10 to 30V c terminal. They are not connecte internally. Connect each common (0, 1, 2, 3) to the correspon ing

supply. Commons are not internally connecte .

DC (10–30V) Output Module10

Publication 1771-IN036C-EN-P - July 2002

The module has 32 status indicators on the module front plate. These

represent the control status of the outputs. Each indicator is lit when

its corresponding output is energized. An additional indicator is

provided to indicate a blown fuse condition.

Status In icators (re )

FUSE

Fuse Blown In icator

10436ĆI

To replace a blown fuse, proceed as follows:

ATTENTION Remove power from the 1771 I/O chassis

backplane and field wiring arm before removing

or installing an I/O module.

•Failure to remove power from the backplane or

wiring arm could cause module damage,

degradation of performance, or injury.

•Failure to remove power from the backplane

could cause injury or equipment damage due to

possible unexpected operation.

1. Turn off power to the chassis.

2. Remove the module from the I/O chassis.

3. Remove the blown fuse from the fuse holder (accessible through

side cover), and replace it with a 4A, 250V normal blow fuse.

4. Reinsert the module into the I/O chassis.

5. Turn on power to the chassis.

Interpreting the Status

Indicators

Replacing the Fuses

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