Rockwell Automation 1791-32AO User Manual

32 Input AC Block I/O Module

4.35

Cat. No. 1791-32A0 Series B

Installation

Mount the block I/O module in a vertical (recommended) or horizontal position.
Allow sufficient room around the block for cooling air to flow through the block
module. Refer to Figure 1.

Figure 1
Mounting
Cat. No. 1791–32A0 (PLC version shown)

Dimensions for the Block I/O Module

0.5

(12.7)

6.95

6.60

(176.5)

(167.6)

30

Equipment

Grounding Stud

CAUTION:

When tightening grounding

stud nut, do not exceed 15 in-lbs.

(110.5)

3.35

Inches

(Millimeters)

(85.1)

1791-32A0

120V

1

00
01
02
03
04
05
06

07

00
01
02
03
04
05
06

07

ac INPUT

G

COMM

STATUS

00
01
02
03
04
05
06

07

(G+1)

RACK

#

ALLENĆBRADLEY

10
11
12
13
14
15
16

17

IN

IN

G

G+1

10

00

10

11

01

11

12

02

12

13

03

13

14

04

14

15

05

15

16

06

16

17

07

17

10
11
12
13
14
15
16

17

30

Block

2.0 (50.8) air gap
on all 4 sides.

Operating temperature
in air gap below module
must not exceed 60oC

o

(140

1

F).

2

mounting holes

for #8 screws

Dimensions

6.95H x 4.35W x 3.85D
(176.5H x 1

10.5W x 98D)

1

Installation Instructions

Block I/O
Cat. No. 1791-32A0 Series B

Figure 2
Mounting

on a DIN Rail

DIN Rail

A-B Pt. No. 199-DR1

46277-3

EN 50022

(35 x 7.5mm)

1. Hook

top of slot over DIN rail.

2. While pressing block against rail, pull
down on locking levers.

3.

When block is flush against rail, push up
on locking levers to secure block to rail.

Locking levers

Figure 3
Inserting

2

Labels

A

set of die-cut labels is supplied with your
module. Select the proper module
designation labels (PLC or SLC) for the front
door and terminal strips.

1.

Remove labels from package. Select
correct labels for your application. (PLC
label is numbered 00–07 and 10–17. SLC
is numbered 00–07 and 08–15.)

Remove plastic cover on terminal strip

2

2.
by flexing in middle. Slip the terminal
designation label with power and RIO
designations into built-in holders in left
terminal strip cover
to install. Repeat for the other
terminal strip using the remaining label.

3.

Open clear front door
designation label into slots in door

. Flex cover slightly

. Insert module

.

3

T

PL

able

A

Acceptable Wiring Cables for Block I/O Connection

Use Cable Type

Remote I/O link Belden 9463

Installation Instructions

Block I/O
Cat. No. 1791-32A0 Series B

Input and output wiring

Up to 14AWG (2mm2) stranded with
3/64 inch (1.2mm) insulation

Connect wiring as shown in Figure 4 or Figure 5.

Figure 4
Wiring

Connections with PLC Family Programmable Controllers (refer

to T

able B)

C

1

1

L1

2

GND

N

NOT

USED

RIO

L2/N

L1

NOT

USED

BLU

SHD

CLR

COM

COM

2

1

COM

2

COM

1

COM

2

COM

1

in 10

00

in

in 1

1

in 01

in 12

in 02

in 13

in 03

in 14

in 04

in 15

in 05

in 16

in 06

29

in 17

30 1

in 07

30

L2/N

USED
NOT

USED
NO

CONN
NO

CONN

3

COM

in 00
in 01
in 02
in 03
in 04
in 05
in 06

in 07
1

30

30

NO
CONN

NOT

NO
CONN

NOT

USED
NO

CONN

COM

4

COM

4

3

COM

4

3

in 10
in 1

1

in 12
in 13

in 14
in 15
in 16

2

in 17

L2/N

L1

L2/NL1

29

COM
COM

L2/N

L1

L1

NOTE:

COM

1 connections are internally connected together
COM 2 connections are internally connected together
COM 3 connections are internally connected together
COM 4 connections are internally connected together

.
.
.
.

3

Installation Instructions

Block I/O
Cat. No. 1791-32A0 Series B

Figure 5
Wiring

Connections with SLC Family Processors (refer to Table B)

SLC

L2/N

L1

RIO

2

30

GND

NOT

USED

BLU
CLR

COM

COM

COM

in
in 01
in 02
in 03
in 04
in 05
in 06
in 07

1

1

L1

N

NOT

USED

SHD

COM

2

COM

1

2

COM

1

2

1

in 08

00

in 09
in 10

in 1

1
in 12
in 13
in 14

29

in 15

L2/N

L1

L2/N

L2/N

L1

L1

30

NOTE: COM

1 connections are internally connected together
COM 2 connections are internally connected together
COM 3 connections are internally connected together
COM 4 connections are internally connected together

29

1

USED
NO

CONN

NO
CONN

COM
COM

COM

in
in 01
in 02
in 03
in 04
in 05
in 06
in 07

NOT

USED
NOT

3
3
3

00

1

30

30

NO
CONN

NO
CONN

NOT

USED
NO

CONN

COM

4

COM
COM

4
4

L2/N

in 08
in 09

in 10
in 1

1

in 12

L1

in 13
in 14

2

in 15

.
.
.
.

The block I/O module has an equipment grounding stud on the lower left side of
the module. Connect this grounding stud to your equipment ground. Torque the
nut to 15 in-lbs maximum when connecting to your equipment ground.

ATTENTION: Do not overtighten the nut on the grounding stud

when connecting the wire. Damage to the module could result.

Refer to “Industrial Automation Wiring and Grounding Guidelines” (1770-4.1)
for further information.

4