Allen-Bradley 1771-OBN User manual

DC (1030V) Output Module

Cat. No. 1771OBN

Installation Instructions

This document provides information on:

important pre-installation considerations

power supply requirements

installing the module

connecting the wiring

using the indicators on the module for troubleshooting

module specifications

The 1771-OBN dc output module is a source output and requires a sink

input. A sink input provides a path to ground and a source output provides

a positive voltage path.

Use this module in all 1771 I/O chassis except 1771-A1, -A2 and 1771-A4

chassis. Refer to the table below for processor compatibility.

Table A

Processor

Compatibility Chart

System Type Use with Processors:

Local MiniPLC2/02(cat. no. 1772LZ, LZP)

MiniPLC2/16 (cat. no. 1772LX, LXP)

MiniPLC2/17 (cat. no. 1772LW, LWP)

PLC5/15, Series B and later (cat. no. 1785LT)

Remote (with a 1771ASB

remote I/O adapter)

PLC2/20(cat. no. 1772LP2)

PLC2/30 (cat. no. 1772LP3)

PLC3(cat. no. 1775L1, L2, L3, L4)

PLC3/10 (cat. no. 1775LP4, LP8)

PLC5/15, Series B and later (cat. no. 1785LT)

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.

To The Installer

Preinstallation

Considerations

!C (10 " 30#) O$tp$t Mod$le

(Cat. %o. 1771"OB%)

Installation Instructions

I/O Module Groups

Each module condenses 2 full module groups (32 outputs) into each I/O

chassis slot. For example:

Module group 1 = outputs 00 through 17

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

represents the second set of outputs).

In Figure 1, 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.

!i"ure 1

Connection

Dia"ram #or the 1771OBN DC Output Module

O$tp$t 0

O$tp$t 2

O$tp$t 4

O$tp$t 6

Common 0

O$tp$t 10

O$tp$t 12

O$tp$t 14

O$tp$t 16

Common 1

O$tp$t 0

O$tp$t 2

O$tp$t 4

O$tp$t 6

Common 2

O$tp$t 10

O$tp$t 12

O$tp$t 14

O$tp$t 16

Common 3

& dc

O$tp$t 1

O$tp$t 3

O$tp$t 5

O$tp$t 7

& dc

O$tp$t 11

O$tp$t 13

O$tp$t 15

O$tp$t 17

& dc

O$tp$t 1

O$tp$t 3

O$tp$t 5

O$tp$t 7

& dc

O$tp$t 11

O$tp$t 13

O$tp$t 15

O$tp$t 17

S$ppl'

dc O$tp$t

!e*ice

(See applica+le codes and laws.)

%ote, Terminals on the le-t are

e*en n$m+ered (2 thr$ 40) / and

terminals on the ri8ht are odd

n$m+ered (1 thr$ 39). 2

(Act$al wirin8 r$ns in this direction.) 11:50I

!C (10 " 30#) O$tp$t Mod$le

(Cat. %o. 1771"OB%)

Installation Instructions

ATTENTION: Miswiring or shorting the output terminals will

cause permanent damage to this module.

ATTENTION: Observe proper polarity with dc power

connections. Reverse polarity, or application of ac voltage could

damage the module.

Table B

Module

Output T

erminal Assi!nments

Terminal

Number Output Assi!nment I"O pro!ram address Terminal

Number Output Assi!nment I"O pro!ram address

01 110 to 30# dc  21 110 to 30# dc 

02 O$tp$t 00 0R&00 22 O$tp$t 00 0R&00

03 O$tp$t 01 0R&01 23 O$tp$t 01 0R&01

04 O$tp$t 02 0R&02 24 O$tp$t 02 0R&02

05 O$tp$t 03 0R&03 25 O$tp$t 03 0R&03

06 O$tp$t 04 0R&04 26 O$tp$t 04 0R&04

07 O$tp$t 05 0R&05 27 O$tp$t 05 0R&05

08 O$tp$t 06 0R&06 28 O$tp$t 06 0R&06

0' O$tp$t 07 0R&07 2' O$tp$t 07 0R&07

10 Common 0  30 Common 2 

11 110 to 30# dc  31 110 to 30# dc 

12 O$tp$t 10 0R&10 32 O$tp$t 10 0R&10

13 O$tp$t 11 0R&11 33 O$tp$t 11 0R&11

14 O$tp$t 12 0R&12 34 O$tp$t 12 0R&12

15 O$tp$t 13 0R&13 35 O$tp$t 13 0R&13

16 O$tp$t 14 0R&14 36 O$tp$t 14 0R&14

17 O$tp$t 15 0R&15 37 O$tp$t 15 0R&15

18 O$tp$t 16 0R&16 38 O$tp$t 16 0R&16

1' O$tp$t 17 0R&17 3' O$tp$t 17 0R&17

20 Common 1  40 Common 3 

Where* R + rac, n$m-er (1/ 2/ 3/ etc.)

& + I9O :ro$p (0  7)

1;o$

can connect a di<

<erent power s$ppl= to each 10 to 30# dc terminal. The= are not connected internall=

. Connect each common (0/ 1/ 2/ 3) to the correspondin: s$ppl=

Commons are not internall= connected.

Speci!ications

!C (10 " 30#) O$tp$t Mod$le

(Cat. %o. 1771"OB%)

Installation Instructions

O$tp$ts per mod$le 32 (4 &ro$ps o' 8)

Mod$le Location 1771A1B thr$ A4B or later I/O Chassis

#olta&e Ratin& 10 to 30# dc

Ma*im$m O$tp$t C$rrent 0.5A per o$tp$t (not to e*ceed 8A per mod$le)

2A per o$tp$t &ro$p

Ma*im$m S$r&e C$rrent 2A per o$tp$t 'or 10msecond+ repeata,le e-er6 2 seconds.

5A per o$tp$t &ro$p 'or 10msec.+repeata,le e-er6 2 seconds.

20A per mod$le 'or 10msec.+ repeata,le e-er6 2 seconds.

Ma*im$m Onstate #olta&e !rop 1.5# dc at 0.5A

Ma*im$m O''state Lea9a&e C$rrent 1.0mA : 55oC

Ma*im$m Power Ratin& 0.75W per o$tp$t

O$tp$t Si&nal !ela6 On to O''

O'' to On

2.0ms

0.1ms

Power !issipation 13.7W (ma*)+ 1.7W (min)

Thermal !issipation 4;.7 BT</hr (ma*)+ 5.7 BT</hr (min)

Bac9plane C$rrent 330mA : 5# dc ma*im$m

Isolation #olta&e 1500# ac rms

Cond$ctors Wire Si=e

Cate&or6

14 &a$&e stranded (ma*)

3/;4 inch ins$lation (ma*)

Cate&or6 11

>n-ironmental Conditions

Operational Temperat$re

Stora&e Temperat$re

Relati-e ?$midit6

0oto ;0oC (32oto 140o@)

40oto 85oC (40oto 185o@)

5 to D5E (witho$t condensation)

Fe6in& Between 14 and 1;

Between 20 and 22

@ield Wirin& Arm Cat. %o. 1771W%

@ield Wirin& Arm Screw TorG$e 7D inchpo$nds

@$ses @o$r 4.0AH 250# normal ,low '$ses (1 per &ro$p)

1Re'er

to p$,lication 17704.1H Pro&ramma,le Controller Wirin& and Jro$ndin& J$idelines

PLC is a registered trademark of Allen-Bradley Company, Inc.

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elV (1) 414 3822000 @a*V (1) 414 3824444

AllenBradle6 has ,een helpin& its c$stomers impro-e prod$cti-it6 and G$alit6 'or D0 6ears.

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P$,lication

17712.1;8  !ecem,er 1DD4

S$persedes

p$,lication 17712.1;8  %o-em,er 1DD1 and 17712.1;8"R%1 " Septem,er 1DD3

P/%

D551

1552

Cop6ri&ht

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H Inc. Printed in <SA

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