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$le
(Cat. %o. 1771"OB%)
Installation Instructions
4
I/O Module Groups
Each module condenses 2 full module groups (32 outputs) into each I/O
chassis slot. For example:
Module group 1 = outputs 00 through 17
Module group 2 = outputs 00 through 17 (module group 2
represents the second set of outputs).
In Figure 1, terminals 1 through 20 represent module group 1. Terminals
21 through 40 represent module group 2. Terminals 10, 20, 30 and 40 are
DC common and terminals 1, 11, 21 and 31 are DC power.
!i"ure 1
Connection
Dia"ram #or the 1771OBN DC Output Module
O$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$t 17
&
"
dc
S$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
4
6
:
10
12
14
16
1:
20
22
24
26
2:
30
32
34
36
3:
40
(Act$al wirin8 r$ns in this direction.) 11:50I

!C (10 " 30#) O$tp$t Mod$le
(Cat. %o. 1771"OB%)
Installation Instructions
5
ATTENTION: Miswiring or shorting the output terminals will
cause permanent damage to this module.
ATTENTION: Observe proper polarity with dc power
connections. Reverse polarity, or application of ac voltage could
damage the module.
Table B
Module
Output T erminal Assi!nments
Terminal
Number Output Assi!nment I"O pro!ram address Terminal Number Output Assi!nment I"O pro!ram address
01 110 to 30# dc  21 110 to 30# dc 
02 O$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$le
(Cat. %o. 1771"OB%)
Installation Instructions
8
O$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$idelines
PLC is a registered trademark of Allen-Bradley Company, Inc.
PLC is a registered trademark of Allen-Bradley Company, Inc.
PLC is a registered trademark of Allen-Bradley Company, Inc.
PLC is a registered trademark of Allen-Bradley Company, Inc.
PLC is a registered trademark of Allen-Bradley Company, Inc.
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P$,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
1DD4 AllenBradle6 Compan6 H Inc. Printed in <SA