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Allen-Bradley 1791-0A32 B Series Installation Instructions Manual
Allen-Bradley 1791-0A32 B Series Installation Instructions Manual

Allen-Bradley 1791-0A32 B Series Installation Instructions Manual

32 output ac block i/o module

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32 Output AC Block I/O Module
Cat. No. 1791-0A32 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. 1791-0A32 (PLC version shown)
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.
4.35
(110.5)
3.35
(85.1)
1791-0A32
120V ac OUTPUT
1
G
00
01
02
03
04
05
06
07
OUT
COMM
00
01
02
03
04
05
06
07
STATUS
(G+1)
00
01
02
03
04
05
06
07
RACK #
LLEN BR DLEY
30
10
11
12
13
14
15
16
17
OUT
G
G+1
00
10
10
11
01
11
12
02
12
13
03
13
14
04
14
15
05
15
16
16
06
07
17
17
10
11
12
13
14
15
16
17
1
Dimensions
6.95H x 4.35W x 3.85D
(176.5H x 110.5W x 98D)
Inches
(Millimeters)
Block
2.0 (50.8) air gap
on all 4 sides.
Operating temperature
in air gap below module
o
must not exceed 60
C
o
(140
F).
2 mounting holes
for 1/4–inch screws
1

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Summary of Contents for Allen-Bradley 1791-0A32 B Series

  • Page 1 32 Output AC Block I/O Module Cat. No. 1791-0A32 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.
  • Page 2: Mounting On A Din Rail

    Installation Instructions Block I/O Cat. No. 1791-0A32 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.
  • Page 3 Installation Instructions Block I/O Cat. No. 1791-0A32 Series B Table A Acceptable Wiring Cables for Block I/O Connection Cable Type Remote I/O link Belden 9463 Input and output wiring Up to 14AWG (2mm ) stranded with 3/64 inch insulation Connect wiring as shown in Figure 4 or Figure 5. Figure 4 Wiring Connections with PLC Family Programmable Controllers (refer to Table B)
  • Page 4 Installation Instructions Block I/O Cat. No. 1791-0A32 Series B Figure 5 Wiring Connections with SLC Family Processors (refer to Table B) L2/N CONN USED CONN USED USED USED USED CONN CONN CONN L1–2 L1–4 L2/N L2/N L2/N L1–3 L2/N L1–1 L1–2 L1–4 L1–3...
  • Page 5 Installation Instructions Block I/O Cat. No. 1791-0A32 Series B Table B Wiring Block Designations 1791–0A32 Series B Connector/Terminal Connections Designation Description Left Conn. Right Conn. ac hot Power Power ac neutral Connections Connections Chassis ground Blue wire – RIO Remote I/O Remote I/O Clear wire –...
  • Page 6 Installation Instructions Block I/O Cat. No. 1791-0A32 Series B Figure 6 Switch Settings SW2–8 Default Switch Not used Settings = 0 SW2–7 Not Used Last I/O Group SW2–6 (PLC-2 only) Not last rack Last rack Processor SW2–5 Restart/Lockout (PRL) Processor Restart Processor Lockout SW2–4 Hold Last State...
  • Page 7 Installation Instructions Block I/O Cat. No. 1791-0A32 Series B 1747-SN 1771-SN PLC–2 PLC–5 PLC–5/250 PLC–3 SW1 Switch Position Rack Rack Rack Rack Rack Rack Number Number Number Number Number Number Rack 0 Rack 1 Rack 1 Not Valid Rack 0 Rack 0 Rack 1 Rack 2...
  • Page 8 Installation Instructions Block I/O Cat. No. 1791-0A32 Series B 1747-SN 1747-SN 1771-SN 1771-SN PLC–2 PLC–2 PLC–5 PLC–5 PLC–5/250 PLC–5/250 PLC–3 PLC–3 SW1 Switch Position Rack Rack Rack Rack Rack Rack Rack Rack Rack Rack Rack Rack Number Number Number Number Number Number Number...
  • Page 9: Termination Resistor

    Installation Instructions Block I/O Cat. No. 1791-0A32 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.
  • Page 10 Installation Instructions Block I/O Cat. No. 1791-0A32 Series B Indicators COMM COMM STATUS STATUS Indicator Description COMM Communication not established Communication established Flashing Processor in Program mode STATUS Normal Error (hardware or software), block power low Flashing COMM FAIL – communication cable disconnected, 100ms between valid frames, no more than 255 valid frames between valid frames addressed to block, 20ms idle time exceeded.
  • Page 11 Installation Instructions Block I/O Cat. No. 1791-0A32 Series B Block I/O modules are derated linearly above 30 C up to and including 60 Table E Output Ratings and Non-fused Surge Currents Catalog Max. Output Rating: Maximum Surge Current Voltage Mounting Number @ 30 @ 60...
  • Page 12 Milwaukee, WI 53204 USA Tel: (414) 382-2000 Telex: 43 11 016 FAX: (414) 382-4444 With offices in major cities worldwide Publication 1791-2.13 – March 1994 PN 955117–14 Supersedes publication 1791-2.13 – April 1993 Copyright 1994 Allen-Bradley Company, Inc. Printed in USA...