Allen-Bradley 1791-32A0 Bedienungsanleitung

32 Input AC Block I/O Module

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

Dimensions for the Block I/O Module

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

mounting holes

for #8 screws

4.35

(110.5)

3.35

(85.1)

6.95

(176.5) 6.60

(167.6)

0.5

(12.7)

6.95H x 4.35W x 3.85D

(176.5H x 1

10.5W x 98D)

Inches

(Millimeters)

Equipment

Grounding Stud

CAUTION:

When tightening grounding

stud nut, do not exceed 15 in-lbs.

Block

Operating temperature

in air gap below module

must not exceed 60

(140oF).

2.0 (50.8) air gap

on all 4 sides.

1791-32A0

120V

ac INPUT

IN IN

GG+1

(G+1)

COMM

STATUS

RACK

ALLENĆBRADLEY

Dimensions

Installation Instructions

Block I/O

Cat. No. 1791-32A0 Series B

Figure 2

Mounting

on a DIN Rail

1. Hook

top of slot over DIN rail.

2. While pressing block against rail, pull

down on locking levers.

When block is flush against rail, push up

on locking levers to secure block to rail.

Locking levers

DIN Rail

A-B Pt. No. 199-DR1

46277-3

EN 50022

(35 x 7.5mm)

Figure 3

Inserting

Labels

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.

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.)

Open clear front door

. Insert module

designation label into slots in door

Remove plastic cover on terminal strip

by flexing in middle. Slip the terminal

designation label with power and RIO

designations into built-in holders in left

terminal strip cover

. Flex cover slightly

to install. Repeat for the other

terminal strip using the remaining label.

Installation Instructions

Block I/O

Cat. No. 1791-32A0 Series B

able

Acceptable

iring Cables for Block I/O Connection

Use Cable Type

Remote I/O link Belden 9463

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)

L2/NL1

RIO

NOT

USED

NOT

USED

NOT

USED

CONN

CONN NO

CONN

GND

BLU

CLR

in 01

in 02

in 03

in 04

in 05

COM

NOT

USED

COM

in 1

SHD

COM

in 10

in 12

in 13

in 14

in 15

in 16

in 17

COM

NOT

USED

COM

in 07

in 06

in 00

in 01

in 02

in 03

in 04

in 05

in 10

in 12

in 13

in 14

in 15

in 16

in 17

in 07

in 06

in 1

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

30 1 2

29 30

L2/N

NOTE:

Installation Instructions

Block I/O

Cat. No. 1791-32A0 Series B

Figure 5

Wiring

Connections with SLC Family Processors (refer to Table B)

RIO

L2/N

SLC L2/N

GND

COM

BLU

CLR

in 01

in 02

in 03

in 04

in 05

in 06

in 07

COM

NOT

USED

SHD

COM

in 08

in 1

in 12

in 13

in 14

in 15

COM

NOT

USED

COM

in 09

in 10

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

L2/N

COM

in 01

in 02

in 03

in 04

in 05

in 06

in 07

COM

NOT

USED

COM

in 08

in 1

in 12

in 13

in 14

in 15

COM

NOT

USED

COM

in 09

in 10

L2/N

NOT

USED

CONN

CONN NO

CONN

30 12

29 30

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.

Installation Instructions

Block I/O

Cat. No. 1791-32A0 Series B

able B

Wiring

Block Designations

1791–32A0 Series B Connector/Terminal

Connections Designation Description Left Conn. Right Conn.

Power

Connections

L1 ac hot 1

Power

Connections Nac neutral 3

GND Chassis ground 21

Remote I/O

Connections

BLU Blue wire – RIO 6

Remote I/O

Connections CLR Clear wire – RIO 8

SHD Shield – RIO 7

I/O Connections

in 00 thru in 07 Input 00 thru 07 16, 18, 20,

22, 24, 26,

28, 30

Input

(G)6

COM 1 L2/N Input Common 10, 12, 142

Input

(G)6COM 2 L2/N Input Common 9, 11, 133

PLC: in 10 thru in 17

SLC: in 08 thru in 15 PLC: Input 10 thru 17

SLC: Input 08 thru 15

15, 17, 19,

21, 23, 25,

27, 29

in 00 thru in 07 Input 00 thru 07 15, 13, 11,

9, 7, 5, 3, 1

Input

(G+1)7

COM 3 L2/N Input Common 21, 19, 174

Input

(G+1)7COM 4 L2/N Input Common 22, 20, 185

PLC: in 10 thru in 17

SLC: in 08 thru in 15 PLC: Input 10 thru 17

SLC: Input 08 thru 15 16, 14, 12,

10, 8, 6, 4, 2

Not used For internal test only;

not for customer use. 4, 5 29, 27, 26

No Conn No internal connection;

customer can use. 30, 28, 25,

24, 23

Connect chassis ground to equipment grounding stud. These are not internally connected.

Left connector terminals 10, 12 and 14 are internally connected together

Left connector terminals 9, 1

1 and 13 are internally connected together

Right connector terminals 21, 19 and 17 are internally connected together

Right connector terminals 22, 20 and 18 are internally connected together

IN (G) = input module group (1 word).

IN (G+1) = input module group plus 1 word

SW1

SW2

Open cover to

access switches

Position = 1Position = 0

End View

87654321

NOTE: Set switch SW2–3 to 0 if this rack

will have a unique address (not

complemented). If this rack address

is a duplicate of another I/O block

or chassis, set the switch to 1 for

primary or 0 for complementary.

Refer to Table C for the

complementary I/O rack address.

Default Switch

Settings = 0

ATTENTION: Cycle power to the module after

setting the switches.

Only block I/O modules with all inputs or all

outputs can use complementary I/O.

Installation Instructions

Block I/O

Cat. No. 1791-32A0 Series B

Figure 6

Switch

Settings

SW2–8

Not used

SW2–7

Not Used

SW2–6 Last I/O Group

(PLC-2 only)

0Not last rack

1Last rack

SW2–5 Processor

Restart/Lockout (PRL)

0Processor Restart

1Processor Lockout

SW2–4 Hold Last State

0Reset Outputs

1Hold Last State

SW2–3 Complementary I/O1

0Non-Complemented System

0Complementary Rack1

1Primary Rack1

1See note.

Communication Rate

SW2–2 SW2–1 Bits/s

0 0 57.6 K

0 1 115.2 K

1 0 230.4 K

1 1 230.4 K

Starting Quarter

SW1–2 SW1–1 Module

Group

0 0 0 (1st)

0 1 2 (2nd)

1 0 4 (3rd)

1 1 6 (4th)

Installation Instructions

Block I/O

Cat. No. 1791-32A0 Series B

1747-SN

1771-SN

PLC–2

PLC–5

PLC–5/250

PLC–3

SW1 Switch Position

Number

Number 8 7 6 5 4 3

Rack

Rack 1 Rack 1

Not V

alid

Rack 0 Rack 0

0 0 0 0 0 0

Rack 1 Rack 2 Rack 2 Rack 1 Rack 1 Rack 1

0 0 0 0 0 1

Rack 2 Rack 3 Rack 3 Rack 2 Rack 2 Rack 2

0 0 0 0 1 0

Rack 3 Rack 4 Rack 4 Rack 3 Rack 3 Rack 3

0 0 0 0 1 1

Rack 5 Rack 5 Rack 4 Rack 4 Rack 4

0 0 0 1 0 0

Rack 6 Rack 6 Rack 5 Rack 5 Rack 5

0 0 0 1 0 1

Rack 7 Rack 7 Rack 6 Rack 6 Rack 6

0 0 0 1 1 0

Rack 7 Rack 7 Rack 7

0 0 0 1 1 1

Rack 10 Rack 10 Rack 10

0 0 1 0 0 0

Rack 1

1 0 0 1 0 0 1

Rack 12 Rack 12 Rack 12

0 0 1 0 1 0

Rack 13 Rack 13 Rack 13

0 0 1 0 1 1

Rack 14 Rack 14 Rack 14

0 0 1 1 0 0

Rack 15 Rack 15 Rack 15

0 0 1 1 0 1

Rack 16 Rack 16 Rack 16

0 0 1 1 1 0

Rack 17 Rack 17 Rack 17

0 0 1 1 1 1

Rack 20 Rack 20 Rack 20

0 1 0 0 0 0

Rack 21 Rack 21 Rack 21

0 1 0 0 0 1

Rack 22 Rack 22 Rack 22

0 1 0 0 1 0

Rack 23 Rack 23 Rack 23

0 1 0 0 1 1

Rack 24 Rack 24 Rack 24

0 1 0 1 0 0

Rack 25 Rack 25 Rack 25

0 1 0 1 0 1

Rack 26 Rack 26 Rack 26

0 1 0 1 1 0

Rack 27 Rack 27 Rack 27

0 1 0 1 1 1

Rack 30 Rack 30

0 1 1 0 0 0

Rack 31 Rack 31

0 1 1 0 0 1

Rack 32 Rack 32

0 1 1 0 1 0

Rack 33 Rack 33

0 1 1 0 1 1

Rack 34 Rack 34

0 1 1 1 0 0

Rack 35 Rack 35

0 1 1 1 0 1

Rack 36 Rack 36

0 1 1 1 1 0

Rack 37 Rack 37

0 1 1 1 1 1

Rack 40

1 0 0 0 0 0

Rack 41

1 0 0 0 0 1

Rack 42

1 0 0 0 1 0

Rack 43

1 0 0 0 1 1

Rack 44

1 0 0 1 0 0

Rack 45

1 0 0 1 0 1

Rack 46

1 0 0 1 1 0

Rack 47

1 0 0 1 1 1

Rack 50

1 0 1 0 0 0

When

configured as complementary I/O:

PLC-2 can scan racks 01–07

PLC-5/1

1 can scan rack 03

PLC-5/20, PLC-5/30, PLC-5/40, PLC-5/60

can scan racks 01–07

NOTE:

Remote rack numbers which can

have a complementary rack are rack

numbers 01 thru 07 only

Installation Instructions

Block I/O

Cat. No. 1791-32A0 Series B

SW1 Switch Position

PLC–3

Rack

Number

PLC–5/250

Rack

Number

PLC–5

Rack

Number

PLC–2

Rack

Number

1771-SN

Rack

Number

1747-SN

Rack

Number 345678

PLC–3

Rack

Number

PLC–5/250

Rack

Number

PLC–5

Rack

Number

PLC–2

Rack

Number

1771-SN

Rack

Number

1747-SN

Rack

Number Rack

1 0 1 0 0 1

Rack 52

1 0 1 0 1 0

Rack 53

1 0 1 0 1 1

Rack 54

1 0 1 1 0 0

Rack 55

1 0 1 1 0 1

Rack 56

1 0 1 1 1 0

Rack 57

1 0 1 1 1 1

Rack 60

1 1 0 0 0 0

Rack 61

1 1 0 0 0 1

Rack 62

1 1 0 0 1 0

Rack 63

1 1 0 0 1 1

Rack 64

1 1 0 1 0 0

Rack 65

1 1 0 1 0 1

Rack 66

1 1 0 1 1 0

Rack 67

1 1 0 1 1 1

Rack 70

1 1 1 0 0 0

Rack 71

1 1 1 0 0 1

Rack 72

1 1 1 0 1 0

Rack 73

1 1 1 0 1 1

Rack 74

1 1 1 1 0 0

Rack 75

1 1 1 1 0 1

Rack 76

1 1 1 1 1 0

Not V

alid 1 1 1 1 1 1

Rack address 77 is an illegal configuration.

PLC-5/1

1 processors can scan rack 03.

PLC-5/15 and PLC-5/20 processors can scan racks 01–03.

PLC-5/25 and PLC-5/30 processors can scan racks 01–07.

PLC-5/40 and PLC-5/40L processors can scan racks 01–17.

PLC-5/60 and PLC-5/60L processors can scan racks 01–27.

PLC-5/250 processors can scan racks 00–37.

able C

PLC–2

and PLC–5 With Complementary I/O

PLC–2

PLC–5

SW1 Switch Position

Number

Number 8 7 6 5 4 3

Rack

Not V

alid 0 0 1 0 0 0

Rack 2 Rack 1

0 0 1 0 0 1

Rack 3 Rack 2

0 0 1 0 1 0

Rack 4 Rack 3

0 0 1 0 1 1

Rack 5 Rack 4

0 0 1 1 0 0

Rack 6 Rack 5

0 0 1 1 0 1

Rack 7 Rack 6

0 0 1 1 1 0

Rack 7

0 0 1 1 1 1

Installation Instructions

Block I/O

Cat. No. 1791-32A0 Series B

The SLC 500 controllers communicate with the block I/O using an I/O Scanner

module (cat. no. 1747-SN series A). Refer to the user manual for the 1747-SN/A

Scanner module for more information.

Important: This block I/O module is not compatible with the 1747-DSN

Distributed I/O Scanner module.

Termination Resistor

termination resistor must be installed on the last block in a series. Connect the

resistor as shown in Figure 7.

Figure 7

Installing

the T

ermination Resistor

Termination

Resistor

Connect

termination resistor across

terminals 6 (BLU) and 8 (CLR).

10835–I

BLU SHD

CLR

150 ohm – 57.6K and 115.2K baud

82 ohm – 230.4K baud

ATTENTION: Devices that are operating at 230.4K baud must have

82 ohm terminators in place for proper operation.

Installation Instructions

Block I/O

Cat. No. 1791-32A0 Series B

Indicators

PLC SLC

ININ

COMM

STATUS

COMM

STATUS

G G+1 ININ

G G+1

Indicator Description

COMM

OFF

Flashing

Communication not established

Communication established

Processor in Program mode

STATUS OFF

Flashing

Normal

Error (hardware or software), block power low

COMM F

AIL – communication cable disconnected, 100ms between valid frames, no

more than 255 valid frames between valid frames addressed to block, 20ms idle

time exceeded.

COMM

and ST

TUS will alternately flash when processor restart lockout is selected, a fault has occurred and the processor

is communicating with the block.

Fusing

The block I/O module is internally fused to protect the module. No external

power fusing is required.

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