Rockwell Automation 1747-L40 User Manual

Allen Bradley

SLC 500t Fixed

Hardware Style

(Cat. No. 1747 L20, 1747 L30,

and 1747 L40 Processors)

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Installation and

Operation Manual

Allen-Bradley

SLC 500t Fixed

Hardware Style

(Cat. No. 1747-L20, 1747-L30,

and 1747-L40 Processors)

Installation and

Operation Manual

Important User Information	Solid state equipment has operational characteristics differing from those of
	electromechanical equipment. ªSafety Guidelines for the Application,
	Installation and Maintenance of Solid State Controlsº (Publication SGI-1.1)
	describes some important differences between solid state equipment and
	hard±wired electromechanical devices. Because of this difference, and also
	because of the wide variety of uses for solid state equipment, all persons
	responsible for applying this equipment must satisfy themselves that each
	intended application of this equipment is acceptable.
	In no event will the Allen-Bradley Company be responsible or liable for
	indirect or consequential damages resulting from the use or application of
	this equipment.
	The examples and diagrams in this manual are included solely for illustrative
	purposes. Because of the many variables and requirements associated with
	any particular installation, the Allen-Bradley Company cannot assume
	responsibility or liability for actual use based on the examples and diagrams.
	No patent liability is assumed by Allen-Bradley Company with respect to use
	of information, circuits, equipment, or software described in this manual.
	Reproduction of the contents of this manual, in whole or in part, without
	written permission of the Allen-Bradley Company is prohibited.
	Throughout this manual we use notes to make you aware of safety
	considerations.
	!		ATTENTION: Identifies information about practices or
			circumstances that can lead to personal injury or death, property
			damage, or economic loss.

Attentions help you:

•identify a hazard

•avoid the hazard

•recognize the consequences

Important: Identifies information that is especially important for successful application and understanding of the product.

PLC and PLC 5 are registered trademarks of Allen-Bradley Company, Inc.

SLC, SLC 500, Dataliner, and DTAM are trademarks of Allen-Bradley Company, Inc.

IBM is a registered trademark of International Business Machines, Incorporated.

Tandy is a trademark of the Tandy Corporation.

Gateway 2000 is a trademark of Gateway 2000, Inc.

Toshiba is a trademark of Toshiba America, Inc.

Compaq is a registered trademark of Compaq Computer Corporation.

Deskpro is a trademark of Compaq Computer Corporation.

Summary of Changes

Summary of Changes

New Information

The information below summarizes the changes to this manual since the last printing as 1747-NI001 in November, 1993.

To help you find new information and updated information in this release of the manual, we have included change bars as shown to the right of this paragraph.

The table below lists sections that document new features and additional information about existing features, and shows where to find this new information.

For This New Information	See
Updated list of related publications	Preface
High voltage warning	Chapters 2, 4, and 7

Table of Contents

Summary of Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . .							i
New Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .							i
Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .					P-1
Who Should Use this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . .					P-1
How to Use this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .					P-2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Related Publications					P-3
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Related Publications					P-3
Conventions Used in this Manual . . . . . . . . . . . . . . . . . . . . . . . . .					P-4
Allen-Bradley Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .					P-4
Local Product Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .					P-4
Technical Product Assistance . . . . . . . . . . . . . . . . . . . . . . . . .					P-4
Your Questions or Comments on this Manual . . . . . . . . . . . . . .					P-4
Selecting Your Hardware Components . . . . . . . . . . . . . . .			1-1
What Your SLC 500 Controller Can Do for You . . . . . . . . . . . . . . .					1-1
. . . . . . . . . . . . . . . . . . . .Overview of Your Fixed Control System					1-2
Fixed Controller Specifications . . . . . . . . . . . . . . . . . . . . . . . . . .					1-3
Memory Backup for the SLC 500 Fixed Controller . . . . . . . . . . .					1-4
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Configuration Options					1-5
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Input Specifications					1-6
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Output Specifications					1-7
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Relay Contact Ratings					1-8
Selecting the 2-Slot Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . .					1-8
. . . . . . . . . . . . . . . . . . . . . . . . . .Selecting Discrete I/O Modules					1-8
. . . . . . . . . . . . . . . . . . . . . . . . .Selecting Speciality I/O Modules					1-8
Selecting Enclosures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .					1-9
Selecting Operator Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . .					1-9
Programming with a Hand-Held Terminal (1747-PT1) . . . . . . . .			1-9
Programming with Advanced Programming Software (APS)
on an IBM Compatible Computer . . . . . . . . . . . . . . . . . . . .					1-9
Advanced Programming Software, 1747-PA2E . . . . . . . . . . .			1-10
DH-485 Interface Converter (1747-PIC) . . . . . . . . . . . . . . .			1-10
Monitoring with a Data Table Access Module (1747-DTAM-E) . .			1-10
EEPROM and UVPROM Memory Modules . . . . . . . . . . . . . . . . . .			1-11
Selecting Isolation Transformers . . . . . . . . . . . . . . . . . . . . . . . . .			1-12
Special Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .			1-13
Excessive Line Voltage Variations . . . . . . . . . . . . . . . . . . . . . .			1-13
Excessive Noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .			1-13
Selecting Surge Suppressors . . . . . . . . . . . . . . . . . . . . . . . . .			1-14
Selecting Contact Protection . . . . . . . . . . . . . . . . . . . . . . . . . .			1-16
Transistor Output Transient Pulses . . . . . . . . . . . . . . . . . . . . .			1-17

ii	Table of Contents

Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-19

System Installation Recommendations . . . . . . . . . . . . . . .	2-1
Typical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		2-1
Spacing Your Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		2-2
Preventing Excessive Heat . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		2-2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Grounding Guidelines		2-3
Master Control Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		2-5
Emergency-Stop Switches . . . . . . . . . . . . . . . . . . . . . . . . . . .		2-6
Power Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		2-7
Common Power Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		2-7
Loss of Power Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		2-7
Input States on Power Down . . . . . . . . . . . . . . . . . . . . . . . . . .		2-7
Other Types of Line Conditions . . . . . . . . . . . . . . . . . . . . . . . .		2-7
Safety Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		2-8

High Voltages - SLC 500 Fixed Hardware Style Controller (Series C) (Applies to 1747-L20A, -L30A, -L40A, -L20C, -L30C, and -L40C

controllers) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	2-8
Disconnecting Main Power . . . . . . . . . . . . . . . . . . . . . . . . . . .	2-8
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Wiring Safety Circuits	2-9
Distributing Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	2-9
Testing the Master Control Relay Circuit . . . . . . . . . . . . . . . . . .	2-9
Preventive Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	2-9

Mounting Your SLC 500 Control System . . . . . . . . . . . . . .	3-1
Mounting Fixed Hardware Style Units . . . . . . . . . . . . . . . . . . . . . .		3-1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .20 I/O Fixed ControllerÀ		3-2
30 and 40 I/O Fixed ControllerÀ . . . . . . . . . . . . . . . . . . . . . . . .		3-3
2-Slot Expansion ChassisÀ . . . . . . . . . . . . . . . . . . . . . . . . . .		3-4
Link Coupler (AIC)À . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		3-5
Data Table Access Module (DTAM)À . . . . . . . . . . . . . . . . . . . .		3-5

Installing Your Hardware Components . . . . . . . . . . . . . . . .	4-1
Mounting the 2-Slot Expansion Chassis . . . . . . . . . . . . . . . . . . . .		4-1
. . . . . . . . . . . . . . . . . . . . . .Installing I/O and Speciality Modules		4-2
Installing Your Memory Module . . . . . . . . . . . . . . . . . . . . . . . . . .		4-4
Removing Your Memory Module . . . . . . . . . . . . . . . . . . . . . . .		4-5
Using the High-Speed Counter . . . . . . . . . . . . . . . . . . . . . . . . . .		4-5
High-Speed Counter Operation . . . . . . . . . . . . . . . . . . . . . . . .		4-5
. . . . . . . . . . . . . . . . .High-Speed Counter Input Compatibility		4-6
Wiring Diagram of a High-Speed Counter Sinking Input Circuit .		4-7
Wiring Diagram of a High-Speed Counter Sourcing Input Circuit		4-7

Table of Contents			iii
Wiring Your Control System . . . . . . . . . . . . . . . . . . . . . . . .		5-1
Defining Sinking and Sourcing . . . . . . . . . . . . . . . . . . . . . . . . . . .			5-1
Contact Output Circuits AC or DC . . . . . . . . . . . . . . . . . . . .			5-2
. . . . . . . . . . . . . . . . . . . . . . . . . . .Solid-State DC I/O Circuits			5-2
. . . . . . . . . . .Sourcing Device with Sinking Input Module Circuit			5-2
Sinking Device with Sourcing Input Module Circuit . . . . . . . . . . .			5-3
Sinking Device with Sourcing Output Module Circuit . . . . . . . . .			5-3
. . . . . . . . .Sourcing Device with Sinking Output Module Circuit			5-3
Preparing Your Wiring Layout . . . . . . . . . . . . . . . . . . . . . . . . . . .			5-4
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Features of an I/O Module			5-5
Recommendations for Wiring I/O Devices . . . . . . . . . . . . . . . . . . .			5-6
Wiring Your I/O Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .			5-7
Using Removable Terminal Blocks (RTBs) . . . . . . . . . . . . . . . . . .			5-8
Removing RTBs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .			5-8
Installing RTBs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .			5-9
Starting Up Your Control System . . . . . . . . . . . . . . . . . . . .		6-1
Procedures for Starting Up the Control System . . . . . . . . . . . . . . .			6-1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .1. Inspect Your Installation			6-2
2. Disconnect Motion-causing Devices . . . . . . . . . . . . . . . . . . . .			6-2
. . . . . . . . . . . . . . . . . . . . . .3. Initialize and Test Your Processor			6-3
4. Test Your Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .			6-4
Input Troubleshooting Steps . . . . . . . . . . . . . . . . . . . . . . . . . .			6-5
5. Test Your Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .			6-6
Output Troubleshooting Steps . . . . . . . . . . . . . . . . . . . . . . . . .			6-7
6. Enter and Test Your Program . . . . . . . . . . . . . . . . . . . . . . . . .			6-8
7. Observe Control Motion . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	6-10
8. Conduct a Dry Run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	6-11
Maintaining Your Control System . . . . . . . . . . . . . . . . . . . .	7-1
Handling, Storing, and Transporting Battery,
Catalog Number 1747-BA . . . . . . . . . . . . . . . . . . . . . . . . . . .			7-1
Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .			7-1
Storing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .			7-1
Transporting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .			7-2
Installing or Replacing Your SLC 500 Battery . . . . . . . . . . . . . . . .			7-4
Replacing the Power Supply Fuse . . . . . . . . . . . . . . . . . . . . . . . .			7-5
. . . . . . . . . . . . . . . . . .Replacing Retainer Clips on an I/O Module			7-6
Removing Damaged Retainer Clips . . . . . . . . . . . . . . . . . . . . .			7-6
Installing New Retainer Clips . . . . . . . . . . . . . . . . . . . . . . . . . .			7-6

iv	Table of Contents

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		8-1
Calling Allen-Bradley for Assistance . . . . . . . . . . . . . . . . . . . . . .			8-1
Tips for Troubleshooting Your Control System . . . . . . . . . . . . . . . .			8-2
Removing Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .			8-2
Replacing Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .			8-3
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Program Alteration			8-3
Troubleshooting Your Fixed Controller . . . . . . . . . . . . . . . . . . . . .			8-3
Identifying Fixed Controller Errors . . . . . . . . . . . . . . . . . . . . . .			8-4
Troubleshooting Your Input Modules . . . . . . . . . . . . . . . . . . . . . .			8-8
Input Circuit Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .			8-8
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Corrective Action			8-9
Troubleshooting Your Output Modules . . . . . . . . . . . . . . . . . . . . .	8-10
Output Circuit Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	8-10
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Corrective Action	8-11

Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .			9-1
Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .				9-1
Replacement Terminal Blocks . . . . . . . . . . . . . . . . . . . . . . . . . . .	9-2
Setting Up the DH-485 Network . . . . . . . . . . . . . . . . . . . . .				A-1
DH-485 Network Description . . . . . . . . . . . . . . . . . . . . . . . . . . .				A-1
DH-485 Network Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .				A-1
DH-485 Token Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .				A-2
. . . . . . . . . . . . . . . . . . . . . . . . . . .DH-485 Network Initialization				A-2
Devices that Use the DH-485 Network . . . . . . . . . . . . . . . . . . . . .				A-3
1747-AIC Isolated Link Coupler for DH-485 . . . . . . . . . . . . . . . . .				A-4
Example System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . .				A-5
Important Planning Considerations . . . . . . . . . . . . . . . . . . . . . . .				A-6
Hardware Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . .				A-6
Number of Devices and Length of Communication Cable . . . .				A-6
Planning Cable Routes . . . . . . . . . . . . . . . . . . . . . . . . . . . .				A-6
Software Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . .				A-7
Number of Nodes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .				A-7
Setting Node Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . .				A-8
Setting Processor Baud Rate . . . . . . . . . . . . . . . . . . . . . . .				A-8
Maximum Node Address Setting . . . . . . . . . . . . . . . . . . . . .				A-8
. . . . . . . . . . . . . . . . . . . . . . . . . . . .DH-485 Network Installation				A-9
DH-485 Communication Cable and Isolated Link Coupler . . . . .				A-9
Installing the DH-485 Communication Cable . . . . . . . . . . . . . .	A-10
Connecting the Communication Cable to the Isolated Link Coupler		A-11
Single Cable Connection . . . . . . . . . . . . . . . . . . . . . . . . . . .		A-11
Single Cable Connection . . . . . . . . . . . . . . . . . . . . . . . . . . .		A-11
Multiple Cable Connection . . . . . . . . . . . . . . . . . . . . . . . . . .		A-11
Grounding and Terminating the DH-485 Network . . . . . . . . . . .	A-13
Powering the Link Coupler . . . . . . . . . . . . . . . . . . . . . . . . . . .	A-14

Table of Contents

v

Installing and Attaching the Link Couplers . . . . . . . . . . . . . . . . .

The 1771-Remote I/O Network . . . . . . . . . . . . . . . . . . . . . .

1771-Remote I/O Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

RS-232 Communication Interface . . . . . . . . . . . . . . . . . . .

RS-232 and SCADA Applications . . . . . . . . . . . . . . . . . . . . . . . .

RS-232 Communication Interface Overview . . . . . . . . . . . . . . . . .

SLC 500 Devices that Support RS-232 Communication . . . . . . . .

1770-KF3 Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1747-KE Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1746-BAS Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Wiring Connectors for RS-232 Communication . . . . . . . . . . . . . .

Types of RS-232 Connectors . . . . . . . . . . . . . . . . . . . . . . . . .

DTE Pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DCE Pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Pin Assignments for Wiring Connectors . . . . . . . . . . . . . . . . . .

IBM AT to a Modem (Hardware Handshaking Enabled) . . . . .

IBM AT to a 5/03 Processor, 1770-KF3, 1775-KA, 1773-KA, 5130-RM, or PLC-5 (Hardware Handshaking Disabled) À . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1747-KE to a Modem (Hardware Handshaking Enabled) . . . .

1747-KE to a 5/03 Processor, IBM AT, 1770-KF3, 1775-KA, 1773-KA, 5130-RM, or PLC-5

(Hardware Handshaking Disabled) À . . . . . . . . . . . . . . .

1746-BAS to a Modem (Hardware Handshaking Enabled) . . .

1746-BAS to a 5/03 Processor, IBM AT, 1770-KF3, 1775-KA, 1773-KA, 5130-RM, or PLC-5 (Hardware Handshaking Disabled)À . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1770-KF3 to a Modem (Hardware Handshaking Enabled) . . .

2760-RB to a Modem (Hardware Handshaking Enabled) . . . .

2760-RB to a 5/03 Processor, IBM AT, 1770-KF3, 1775-KA, 1773-KA, 5130-RM, or PLC-5

(Hardware Handshaking Disabled) À . . . . . . . . . . . . . . .

1771-KGM to a Modem (Hardware Handshaking Enabled) . .

1771-KGM to a 5/03 Processor, IBM AT, 1770-KF3, 1775-KA, 1773-KA, 5130-RM, or PLC-5

(Hardware Handshaking Disabled) À . . . . . . . . . . . . . . .

1775-KA to a Modem (Hardware Handshaking Enabled) . . . .

1775-KA to a 5/03 Processor, IBM AT, 1770-KF3, 1773-KA, 5130-RM, or PLC-5 (Hardware Handshaking Disabled) À

PLC-5 (Channel 0) to a Modem

(Hardware Handshaking Enabled) . . . . . . . . . . . . . . . . .

PLC-5 (Channel 0) to a 5/03 Processor, IBM AT, 1770-KF3, 1773-KA, 5130-RM, PLC-5, 1747-KE, or 1746-BAS (Hardware Handshaking Disabled) À . . . . . . . . . . . . . . .

5130-RM to a Modem (Hardware Handshaking Enabled) . . .

A-16

B-1

B-1

C-1

C-1 C-1 C-2 C-2 C-2 C-2 C-3 C-3 C-4 C-4 C-5 C-6

C-6 C-7

C-7 C-8

C-8 C-8 C-9

C-9 C-10

C-10 C-11

C-11

C-12

C-12 C-13

vi	Table of Contents

5130-RM to a 5/03 Processor, IBM AT, 1770-KF3, 1773-KA,
5130-RM, PLC-5, 1747-KE, or 1746-BAS
(Hardware Handshaking Disabled) À . . . . . . . . . . . . . . .	C-13

Calculating Heat Dissipation for the SLC 500
Control System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .				D-1
Definition of Key Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .				D-1
Module Heat Dissipation: Calculated Watts vs. Maximum Watts . . .				D-1
. . . . . . . . . .Use this Table to Calculate the Power Supply Loading				D-2
. . . . . . . . . . . . . . . . . . . . .Example Heat Dissipation Calculation				D-4
Example Worksheet for Calculating Heat Dissipation . . . . . . . . .				D-4
. . . . . . . . . . . . . . . . .Worksheet for Calculating Heat Dissipation				D-5
Wiring and Circuit Diagrams and Voltage Ranges
for Your Fixed Controller . . . . . . . . . . . . . . . . . . . . . .				E-1
Wiring Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .				E-1
Wiring and Circuit Diagrams and Voltage Range Locations . . . . . .				E-2
Catalog Number 1747-L20A (12) 120 VAC Inputs & (8)
Relay Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .				E-4
Input Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .				E-5
. . . . . . . . . . . . . . . . . . . . . . . .On/Off State Voltage Ranges				E-5
Output Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .				E-5
Operating Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . .				E-5
Catalog Number 1747-L20B (12) 120 VAC Inputs & (8)
Triac Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .				E-6
Input Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .				E-7
. . . . . . . . . . . . . . . . . . . . . . . .On/Off State Voltage Ranges				E-7
Output Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .				E-7
Operating Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . .				E-7
Catalog Number 1747-L20C (12) 24 VDC Sinking Inputs, High-Speed
Counter Input & (8) Relay Outputs . . . . . . . . . . . . . . . . . . . . .				E-8
Input Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .				E-9
. . . . . . . . . . . .On/Off State Voltage Ranges - Input 0 (HSC)				E-9
. . . . . . . . . . .On/Off State Voltage Ranges - All Other Inputs				E-9
Output Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	E-10
Operating Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . .	E-10
Catalog Number 1747-L20D (12) 24 VDC Sinking Inputs, High-Speed
Counter Input & (8) Triac Outputs . . . . . . . . . . . . . . . . . . . . . .		E-11
Input Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	E-12
. . . . . . . . . . . .On/Off State Voltage Ranges - Input 0 (HSC)	E-12
. . . . . . . . . . .On/Off State Voltage Ranges - All Other Inputs	E-12
Output Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	E-13
Operating Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . .	E-13

Table of Contents	vii
Catalog Number 1747-L20E (12) 24 VDC Sinking Inputs, High-Speed
Counter Input & (8) Transistor Sourcing Outputs . . . . . . . . . . .	E-14
Input Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	E-15
. . . . . . . . . . . .On/Off State Voltage Ranges - Input 0 (HSC)	E-15
. . . . . . . . . . .On/Off State Voltage Ranges - All Other Inputs	E-15
Output Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	E-16
Operating Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . .	E-16
Catalog Number 1747-L20F (12) 24 VDC Sinking Inputs, High-Speed
Counter Input & (8) Relay Outputs . . . . . . . . . . . . . . . . . . . . .	E-17
Input Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	E-18
. . . . . . . . . . . .On/Off State Voltage Ranges - Input 0 (HSC)	E-18
. . . . . . . . . . .On/Off State Voltage Ranges - All Other Inputs	E-18
Output Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	E-19
Operating Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . .	E-19
Catalog Number 1747-L20G (12) 24 VDC Sinking Inputs, High-Speed
Counter Input & (8) Transistor Sourcing Outputs . . . . . . . . . . .	E-20
Input Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	E-21
. . . . . . . . . . . .On/Off State Voltage Ranges - Input 0 (HSC)	E-21
. . . . . . . . . . .On/Off State Voltage Ranges - All Other Inputs	E-21
Output Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	E-22
Operating Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . .	E-22
Catalog Number 1747-L20L (12) 24 VDC Sourcing Inputs, High-Speed
Counter Input & (8) Transistor Sinking Outputs . . . . . . . . . . . .	E-23
Input Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	E-24
. . . . . . . . . . . .On/Off State Voltage Ranges - Input 0 (HSC)	E-24
. . . . . . . . . . .On/Off State Voltage Ranges - All Other Inputs	E-24
Output Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	E-25
Operating Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . .	E-25
Catalog Number 1747-L20N (12) 24 VDC Sourcing Inputs, High-Speed
Counter Input & (8) Transistor Sinking Outputs . . . . . . . . . . . .	E-26
Input Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	E-27
. . . . . . . . . . . .On/Off State Voltage Ranges - Input 0 (HSC)	E-27
. . . . . . . . . . .On/Off State Voltage Ranges - All Other Inputs	E-27
Output Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	E-28
Operating Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . .	E-28
Catalog Number 1747-L20P (12) 240 VAC Inputs & (8)
Triac Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	E-29
Input Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	E-30
. . . . . . . . . . . . . . . . . . . . . . . .On/Off State Voltage Ranges	E-30
Output Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	E-30
Operating Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . .	E-30
Catalog Number 1747-L20R (12) 240 VAC Inputs & (8)
Relay Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	E-31
Input Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	E-32
. . . . . . . . . . . . . . . . . . . . . . . .On/Off State Voltage Ranges	E-32
Output Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	E-32
Operating Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . .	E-32

viii	Table of Contents

Catalog Number 1747-L30A (18) 120 VAC Inputs & (12)
Relay Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	E-33
Input Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	E-34
. . . . . . . . . . . . . . . . . . . . . . . .On/Off State Voltage Ranges	E-34
Output Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	E-34
Operating Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . .	E-34
Catalog Number 1747-L30B (18) 120 Vac Inputs & (12)
Triac Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	E-35
Input Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	E-36
. . . . . . . . . . . . . . . . . . . . . . . .On/Off State Voltage Ranges	E-36
Output Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	E-36
Operating Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . .	E-36
Catalog Number 1747-L30C (18) 24 VDC Sinking Inputs, High-Speed
Counter Input & (12) Relay Outputs . . . . . . . . . . . . . . . . . . . .	E-37
Input Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	E-38
. . . . . . . . . . . .On/Off State Voltage Ranges - Input 0 (HSC)	E-38
. . . . . . . . . . .On/Off State Voltage Ranges - All Other Inputs	E-38
Output Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	E-39
Operating Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . .	E-39
Catalog Number 1747-L30D (18) 24 VDC Sinking Inputs, High-Speed
Counter Input & (12) Triac Outputs . . . . . . . . . . . . . . . . . . . . .	E-40
Input Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	E-41
. . . . . . . . . . . .On/Off State Voltage Ranges - Input 0 (HSC)	E-41
. . . . . . . . . . .On/Off State Voltage Ranges - All Other Inputs	E-41
Output Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	E-42
Operating Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . .	E-42
Catalog Number 1747-L30L (18) 24 VDC Sourcing Inputs, High-Speed
Counter Input & (12) Transistor Sinking Outputs . . . . . . . . . . .	E-43
Input Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	E-44
. . . . . . . . . . . .On/Off State Voltage Ranges - Input 0 (HSC)	E-44
. . . . . . . . . . .On/Off State Voltage Ranges - All Other Inputs	E-44
Output Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	E-45
Operating Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . .	E-45
Catalog Number 1747-L30P (18) 240 VAC Inputs & (12)
Triac Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	E-46
Input Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	E-47
. . . . . . . . . . . . . . . . . . . . . . . .On/Off State Voltage Ranges	E-47
Output Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	E-47
Operating Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . .	E-47
Catalog Number 1747-L40A (24) 120 VAC Inputs & (16)
Relay Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	E-48
Input Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	E-49
. . . . . . . . . . . . . . . . . . . . . . . .On/Off State Voltage Ranges	E-49
Output Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	E-49
Operating Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . .	E-49

Table of Contents	ix
Catalog Number 1747-L40B (24) 120 VAC Inputs & (16)
Triac Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	E-50
Input Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	E-51
. . . . . . . . . . . . . . . . . . . . . . . .On/Off State Voltage Ranges	E-51
Output Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	E-51
Operating Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . .	E-51
Catalog Number 1747-L40C (24) 24 VDC Sinking Inputs, High-Speed
Counter Input & (16) Relay Outputs . . . . . . . . . . . . . . . . . . . .	E-52
Input Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	E-53
. . . . . . . . . . . .On/Off State Voltage Ranges - Input 0 (HSC)	E-53
. . . . . . . . . . .On/Off State Voltage Ranges - All Other Inputs	E-53
Output Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	E-54
Operating Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . .	E-54
Catalog Number 1747-L40E (24) 24 VDC Sinking Inputs, High-Speed
Counter Input & (16) Transistor Sourcing Outputs . . . . . . . . . .	E-55
Input Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	E-56
. . . . . . . . . . . .On/Off State Voltage Ranges - Input 0 (HSC)	E-56
. . . . . . . . . . .On/Off State Voltage Ranges - All Other Inputs	E-56
Output Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	E-57
Operating Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . .	E-57
Catalog Number 1747-L40F (24) 24 VDC Sinking Inputs, High-Speed
Counter Input & (16) Relay Outputs . . . . . . . . . . . . . . . . . . . .	E-58
Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	E-58
Input Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	E-59
. . . . . . . . . . . .On/Off State Voltage Ranges - Input 0 (HSC)	E-59
. . . . . . . . . . .On/Off State Voltage Ranges - All Other Inputs	E-59
Output Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	E-60
Operating Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . .	E-60
Catalog Number 1747-L40L (24) 24 VDC Sourcing Inputs, High-Speed
Counter Input & (16) Transistor Sinking Outputs . . . . . . . . . . .	E-61
Input Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	E-62
. . . . . . . . . . . .On/Off State Voltage Ranges - Input 0 (HSC)	E-62
. . . . . . . . . . .On/Off State Voltage Ranges - All Other Inputs	E-62
Output Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	E-63
Operating Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . .	E-63
Catalog Number 1747-L40P (24) 240 VAC Inputs & (16)
Triac Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	E-64
Input Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	E-65
. . . . . . . . . . . . . . . . . . . . . . . .On/Off State Voltage Ranges	E-65
Output Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	E-65
Operating Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . .	E-65

Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

G-1

Preface

Preface

Read this preface first. It provides an overview of the entire manual and will acquaint you with the information that is provided throughout these pages. In this preface, you will learn about:

•who should use this manual

•how to use this manual

•related publications

•conventions used in this manual

•Allen±Bradley support

Who Should Use this Manual The tasks and procedures in this manual require you to have some knowledge of programmable controller installation and electrical wiring. We also assume that you have a ªworkingº knowledge of SLC products. If you do not have this knowledge base, obtain the proper training before attempting any of the tasks and/or procedures detailed in this manual.

P±1

Preface

How to Use this Manual	As much as possible, we organized this manual to explain, in a task±by±task
	manner, how to install and operate (preliminary start±up operations) the SLC
	500 fixed programmable controller. This manual also provides some system
	design information.
	Before using this manual, read over the table below and familiarize yourself
	with the general content of the chapters and appendixes. If you already have
	a topic in mind that you want to find specific information about, turn to the
	index at the back of the manual.
	If You Want	See
	An overview of the manual	The Preface
	Information on how to select certain components	Chapter 1 Selecting Your Hardware Components
	for your SLC 500 control system
	A guide on how to prepare for the installation of	Chapter 2 System Installation Recommendations
	your control system
	Mounting dimensions of your fixed controller,	Chapter 3 Mounting Your SLC 500 Control System
	DTAM , and/or 1747-AIC
	Procedures on how to install your hardware	Chapter 4 Installing Your Hardware Components
	components
	Information on how to wire the components of	Chapter 5 Wiring Your Control System
	your SLC 500 control system
	A guide on how to start up your control system	Chapter 6 Starting Up Your Control System
	Information on how to maintain your control	Chapter 7 Maintaining Your Control System
	system
	To identify error messages generated by your	Chapter 8 Troubleshooting
	control system
	To replace parts of your SLC 500 control system	Chapter 9 Replacement Parts
	or purchase other SLC components
	Information on setting up the DH-485 network	Appendix A Setting Up the DH-485 Network
	Information on the 1771-Remote I/O network	Appendix B The 1771-Remote I/O Network
	Information on configuring the RS-232 network	Appendix C RS-232 Communication Interface
	Information on how to calculate the heat	Appendix D Calculating Heat Dissipation for the
	dissipation of your controller	SLC 500 Control System
	Wiring and circuit diagrams and voltage ranges	Appendix E Wiring and Circuit Diagrams and
		Voltage Ranges for Your Fixed Controller
	Definitions of terms used in this manual	The Glossary

P±2

Related Publications

Preface

The table below provides a listing of publications that contain important information about Allen±Bradley Small Logic Controllers and their installation and application. You may want to reference them while you are installing the SLC 500 controller. (To obtain a copy of one of these publications, contact your local Allen±Bradley office or distributor.)

	For	Read this Document	Document
			Number
	An overview of the SLC 500 family of products	SLC 500 System Overview	1747-2.30
	A description on how to install and use your Modular SLC 500	Installation & Operation Manual for Modular Hardware	1747-6.2
	programmable controller	Style Programmable Controllers
	A procedural manual for technical personnel who use APS to develop	Advanced Programming Software (APS) User Manual	9399-APSUM
	control applications
	A reference manual that contains status file data, instruction set, and	SLC 500 and MicroLogix 1000 Instruction Set	1747-6.15
	troubleshooting information about APS	Reference Manual
	An introduction to APS for first-time users, containing basic concepts but
	focusing on simple tasks and exercises, and allowing the reader to begin	APS Quick Start for New Users	9399-APSQS
	programming in the shortest time possible
	A procedural and reference manual for technical personnel who use the
	APS import/export utility to convert APS files to ASCII and conversely	APS Import/Export User Manual	9399-APSIE
	ASCII to APS files
	A procedural and reference manual for technical personnel who use an	Allen-Bradley Hand-Held Terminal User Manual	1747-NP002
	HHT to develop control applications
	An introduction to HHT for first-time users, containing basic concepts but
	focusing on simple tasks and exercises, and allowing the reader to begin	Getting Started Guide for HHT	1747-NM009
	programming in the shortest time possible
	In-depth information on grounding and wiring Allen-Bradley	Allen-Bradley Programmable Controller Grounding and	1770-4.1
	programmable controllers	Wiring Guidelines
	A description on how to install a PLC-5r system	PLC-5 Family Programmable Controllers Hardware	1785-6.6.1
		Installation Manual
	A description of important differences between solid-state programmable	Application Considerations for Solid-State Controls	SGI-1.1
	controller products and hard-wired electromechanical devices
			Published by the
			National Fire
	An article on wire sizes and types for grounding electrical equipment	National Electrical Code	Protection
			Association of
			Boston, MA.
	A complete listing of current Automation Group documentation, including
	ordering instructions. Also indicates whether the documents are	Allen-Bradley Publication Index	SD499
	available on CD-ROM or in multi-languages.
	A glossary of industrial automation terms and abbreviations	Allen-Bradley Industrial Automation Glossary	AG-7.1

P±3

Preface

Conventions Used in this Manual

The following conventions are used throughout this manual:

•Bulleted lists such as this one provide information, not procedural steps.

•Numbered lists provide sequential steps or hierarchical information.

•Italic type is used for emphasis.

•Dimensions are in millimeters. (Dimensions in parentheses are in inches.)

•Text in this font indicates words or phrases you should type.

Allen-Bradley Support

Allen±Bradley offers support services worldwide, with over 75 Sales/Support offices, 512 authorized Distributors and 260 authorized Systems Integrators located throughout the United States alone, plus Allen±Bradley representatives in every major country in the world.

Local Product Support

Contact your local Allen±Bradley representative for:

•sales and order support

•product technical training

•warranty support

•support service agreements

Technical Product Assistance

If you need to contact Allen±Bradley for technical assistance, please review the information in the Troubleshooting chapter first. Then call your local Allen±Bradley representative.

Your Questions or Comments on this Manual

If you find a problem with this manual, please notify us of it on the enclosed Publication Problem Report.

If you have any suggestions for how this manual could be made more useful to you, please contact us at the address below:

Allen±Bradley Company, Inc.

Automation Group

Technical Communication, Dept. 602V, T122

P.O. Box 2086

Milwaukee, WI 53201±2086

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Chapter 1

Selecting Your Hardware Components

What Your SLC 500 Controller Can Do for You

This chapter provides general information on what your SLC 500 controller can do for you and an overview of the fixed control system. It also explains how to select:

•2±slot chassis

•discrete I/O modules

•specialty I/O modules

•enclosures

•operator interfaces

•memory modules

•isolation transformers

•suppressors

•output contact protection

There is also a section on special considerations for controller installations.

This chapter does not provide you with all the information that you need to select a complete SLC 500 control system. To do this, we recommend that you use the latest version of the system overview, SLC 500 Family of Small Programmable Controllers, Publication Number 1747±2.30.

The SLC 500 programmable controller has features that previously could only be found in large programmable controllers. It has the flexibility and power of a large controller with the size and simplicity of a small controller. The SLC 500 controller offers you more control options than any other programmable controller in its class.

These programmable controllers make up a technologically advanced control system having inherent flexibility and advantages characteristic of other programmable controllers, but with one important difference Ð simplicity!

1±1

Chapter 1

Selecting Your Hardware Components

Overview of Your Fixed

Control System

The basic fixed controller consists of a processor with 1,024 (1K) instruction capacity, a power supply, and a fixed number of I/O contained in a single package. The figure below shows typical hardware components for a fixed controller.

Fixed Hardware Components				Fixed Controller with 2-slot Expansion Chassis

Input Module

Output Module

Fixed Hardware Controller

Operator Interface	2-Slot Expansion Chassis
	for I/O Modules

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Fixed Controller

Specifications

Chapter 1

Selecting Your Hardware Components

This section provides the specifications for the SLC 500 Fixed Controller.

	Description		Specification
	Memory Type	Capacitor-backed RAM memory. Battery back-up optional.
	Memory Backup Options	EEPROM or UVPROM
	Program Memory	1K Instruction Capacity
	Capacitor Memory Back-up Time	Refer to curve on page 1-4.
	Battery Life	5 years
	Typical Scan Time	8 milliseconds/1K
	Bit Execution (XIC)	4 microseconds
	Program Scan Hold-up Time after	20 milliseconds to 700 milliseconds (dependent on loading)
	Loss of Power
	Power Supply Operating Voltage	AC units:	85-265 VAC	47-63 Hz
		DC units:	21.6-26.4 VDC (24 VDC ± 10%)
	Power Supply Fuse Protection	AC units:	120/240 VAC	1.25A
		DC units:	24 VDC	1.6A
	Power Supply Inrush Rating	30 Amperes maximum
	Maximum Power Requirement	50 VA
	24 VDC User Power Output Current	200mA
	24 VDC User Power Output Voltage	20.4 - 27.6 VDC (24 VDC ± 15 %)
	Wire Size	#14 AWG Max.
	I/O Electrical-Optical Isolation	1500 VAC at 1 minute
	1747-AIC Link Coupler	1500 VDC
	Electrical-Optical Isolation
	LED Indicators	POWER, PC RUN, CPU FAULT, FORCED I/O, and
		BATTERY LOW
	Noise Immunity	NEMA Standard ICS 2-230
	Ambient Temperature Rating	Operating:	0°C to +60°C (+32°F to +140°F)
		Storage:	40°C to +85°C (-40°F to +185°F)
	Humidity	5 to 95% without condensation
		Displacement: .015 inch, peak-to-peak @ 5-57 Hz
	Vibration	Acceleration: 2.5 Gs @ 57-2000 Hz
		Duration: 1 hr per axis (x, y, z)
	Certification	UL listed/
		CSA approved

The scan times are typical for a 1K ladder logic program consisting of simple ladder logic and communication servicing. Actual scan times depend on your program size, instructions used, and the DH-485 communication.

	This specification does not include input and output values. (See page 1-6.)
	This applies only to fixed controllers that have AC line power and DC input circuits.

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Chapter 1

Selecting Your Hardware Components

Memory Backup for the SLC 500 Fixed Controller

The curve below illustrates the ability of the memory back±up capacitor to maintain the contents of the RAM in a fixed controller. To back up the memory for a longer period of time, a lithium battery, Catalog Number 1747±BA, is required.

	30
	25
					Capacitor Memory Back-up Time
	20				VS
					Temperature
Time
(Days)	15
	10
	5
	25	30	35	40	45	50	55	60
	(77°)	(86°)	(95°)	(104°)	(113°)	(122°)	(131°)	(140°)
					Temperature °C (°F)

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Chapter 1

Selecting Your Hardware Components

Configuration Options

The following table provides configuration options for 20, 30, or 40 I/O points.

	Catalog	Line Power			I/O Configuration				High-Speed	User Power
	Number				Input			Output	Counter
	1747-L20A		(12)	120 Volts AC		(8)	AC/DC Relay		No	NA
	1747-L30A		(18)	120 Volts AC		(12)		AC/DC Relay	No	NA
	1747-L40A		(24)	120 Volts AC		(16)		AC/DC Relay	No	NA
	1747-L20B		(12)	120 Volts AC		(8)	AC Triac		No	NA
	1747-L30B		(18)	120 Volts AC		(12)		AC Triac	No	NA
	1747-L40B		(24)	120 Volts AC		(16)		AC Triac	No	NA
	1747-L20C		(12)	24	Volts DC Sink	(8)	AC/DC Relay		Yes	24V-200mA
	1747-L30C		(18)	24	Volts DC Sink	(12)		AC/DC Relay	Yes	24V-200mA
	1747-L40C		(24)	24	Volts DC Sink	(16)		AC/DC Relay	Yes	24V-200mA
	1747-L20D		(12)	24	Volts DC Sink	(8)	AC Triac		Yes	24V-200mA
	1747-L30D		(18)	24	Volts DC Sink	(12)		AC Triac	Yes	24V-200mA
		120/240 VAC
	1747-L20E		(12)	24	Volts DC Sink	(8)	DC Transistor		Yes	24V-200mA
						Source
	1747-L40E		(24)	24	Volts DC Sink	(16)		DC Transistor	Yes	24V-200mA
						Source
	1747-L20L		(12)	24	Volts DC	(8)	DC Transistor		Yes	24V-200mA
			Source			Sink
	1747-L30L		(18)	24	Volts DC	(12)		DC Transistor	Yes	24V-200mA
			Source			Sink
	1747-L40L		(24)	24	Volts DC	(16)		DC Transistor	Yes	24V-200mA
			Source			Sink
	1747-L20R		(12)	240 Volts AC		(8)	AC/DC Relay		No	NA
	1747-L20P		(12)	240 Volts AC		(8)	AC Triac		No	NA
	1747-L30P		(18)	240 Volts AC		(12)		AC Triac	No	NA
	1747-L40P		(24)	240 Volts AC		(16)		AC Triac	No	NA
	1747-L20F		(12)	24	Volts DC Sink	(8)	AC/DC Relay		Yes	NA
	1747-L40F		(24)	24	Volts DC Sink	(16)		AC/DC Relay	Yes	NA
		24 VDC±
	1747-L20G		(12)	24	Volts DC Sink	(8)	DC Transistor		Yes	NA
		10%
						Source
	1747-L20N		(12)	24	Volts DC	(8)	DC Transistor		Yes	NA
			Source			Sink

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Chapter 1

Selecting Your Hardware Components

Input Specifications

The following table details the input specifications for SLC 500 Fixed I/O units. See the glossary for a definition of specifications.

Inputs		Specifications
	On-State Voltage		85-132 VAC
	Frequency		47-63 Hz
	Off-State Voltage		30 VAC (maximum)
120 VAC	Inrush Current		0.8A peak
	Nominal Input Current		12mA at 120 VAC
	Turn-On Time		35 milliseconds (maximum)
	Turn-Off Time		45 milliseconds (maximum)
	Maximum Off-State Current		2mA
	On-State Voltage		170-265 VAC
	Frequency		47-63 Hz
	Off-State Voltage		50 VAC (maximum)
240 VAC	Inrush Current		1.6A peak
	Nominal Input Current		12mA at 240 VAC
	Turn-On Time		35 milliseconds (maximum)
	Turn-Off Time		45 milliseconds (maximum)
	Maximum Off-State Current		2mA
	On-State Voltage		10-30 VDC
	Off-State Voltage		4 VDC maximum for input 0 (HSC)
			5 VDC for all others
	Nominal Input Current		20mA at 24 VDC (for input 0 only)
DC Sink & Source			8mA at 24 VDC (all others inputs)
	Turn-On Time		8 milliseconds (maximum)
	Turn-Off Time		8 milliseconds (maximum)
	Maximum Off-State Current		1mA

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Chapter 1

Selecting Your Hardware Components

Output Specifications

The following table details the output specifications for SLC 500 Fixed I/O Units.

	Outputs	Specifications
		Output Voltage	85-265 VAC
		Continuous Current (per output)	0.5 Amp at +30°C
			0.25 Amp at +60°C (maximum)
		Minimum Load Current	10mA
	Triac	Turn-On Time	0.1 milliseconds (maximum)
		Turn-Off Time	10 milliseconds (maximum)
		Maximum Off-State Leakage Current	2mA
		Maximum On-State Voltage Drop	1.5V @ 0.5 Amps
		Maximum Surge Current	10 Amps for 25 milliseconds
		Output Voltage	10-50 VDC
		Continuous Current (per output)	0.5 Amp at +30°C
			0.25 Amp at +60°C (maximum)
		Minimum Load Current	1mA
	Transistor Sink &
		Turn-On Time	0.1 millisecond (maximum)
	Source
		Turn-Off Time	1 millisecond (maximum)
		Maximum Off-State Leakage Current	1mA
		Maximum On-State Voltage Drop	1.5V @ 0.5 Amps
		Maximum Surge Current	3.0 Amps for 25 milliseconds
		Output Voltage Range	5-265 VAC, 5-125 VDC
		Continuous Current (per output)	2.5 Amps (maximum)
		Continuous Current (per group)	8 Amps (maximum)
	Relay	Maximum Load (per chassis)	1440 VA
		Turn-On Time	10 milliseconds (maximum)
		Turn-Off Time	10 milliseconds (maximum)
		Maximum Off-State Leakage Current	0mA
		Minimum Load Current at 5 VDC	10mA

Repeatability is once every 1 second at +30°C. Repeatability is once every 2 seconds at +60°C.

Refer to the wiring diagrams for output groupings on the fixed I/O chassis.

Surge suppression across the output device is recommended to protect relay contacts.

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Chapter 1

Selecting Your Hardware Components

Relay Contact Ratings

Maximum				Amperes		Amperes	Voltamperes
	Volts		Make		Break	Continuous	Make		Break
240	VAC	7.5A			0.75A
120	VAC	15A			1.5A	2.5A	1800 VA		180 VA
125	VDC			0.22A		1.0A		28 VA
24 VDC				1.2A		2.0A		28 VA

To calculate make and break ratings for other load voltages, divide the voltampere rating by the load voltage; for example:

28 VA/48 VDC = 0.583 A

Selecting the 2-Slot Chassis For the 20, 30, and 40 I/O fixed controllers, an optional 2±slot expansion chassis lets you add two additional I/O modules providing even more versatility. The power supply provides backplane power for the modules in the optional expansion chassis.

Refer to chapter 3 for chassis dimensions and chapter 4 for mounting directions.

Selecting Discrete I/O

Modules

Selecting Speciality I/O

Modules

There are three types of I/O modules: input, output, and combination I/O. They are available in a wide variety of densities including 4, 8, 16, and 32 point and can interface to AC, DC, and TTL voltage levels. Output modules are available with solid±state AC, solid±state DC, and relay contact type outputs.

For a complete, up±to±date listing of discrete I/O modules and their specifications, contact your Allen±Bradley sales office for the latest product data entitled Discrete Input and Output Modules, Publication Number 1746±2.35.

Refer to chapter 4 for installation directions.

The SLC 500 family offers specialty I/O modules that enhance your control system. These modules range in function from analog interface to motion control, from communication to high±speed counting.

For a complete, up±to±date listing of specialty I/O modules and their specifications, contact your Allen±Bradley sales office for the latest System Overview entitled SLC 500 Family of Small Programmable Controllers,

Publication Number 1747±2.30, or for a related product data.

Refer to chapter 4 for installation directions.

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Selecting Enclosures

Chapter 1

Selecting Your Hardware Components

The enclosure protects the equipment from atmospheric contamination. Standards established by the National Electrical Manufacturer's Association (NEMA) define enclosure types, based on the degree of protection an enclosure will provide. Use a fan to circulate the air of sealed enclosures that use convection cooling to dissipate heat. Select a NEMA±rated enclosure that suits your application and environment. The enclosure should be equipped with a disconnect device. To calculate the heat dissipation of your controller, see appendix D.

Selecting Operator Interfaces Use an operator interface to program and/or monitor your SLC 500 controller. You can choose from several Allen±Bradley operator interface devices.

Programming with a Hand-Held Terminal (1747-PT1)

Use the Hand±Held Terminal (HHT) to configure the SLC 500 controller, enter/modify a user program, download/upload programs, monitor control operation, and test/troubleshoot. When equipped with a battery (1747±BA), the HHT retains a user program in memory for storage and later use.

The display area accommodates 8 lines x 40 characters. You can display five rungs of a user program. The top row of keys are the menu function keys.

Important: Using the HHT, you can program the SLC 5/01 and 5/02 processors and the SLC 500 fixed controllers. You cannot, however, program the SLC 5/03 processor.

Refer to the Hand±Held Terminal User Manual, Catalog Number 1747±NP002, for information on programming your fixed controller with the HHT.

Programming with Advanced Programming Software (APS) on an IBM

Compatible Computer

The Advanced Programming Software (APS) can be used with an Allen-Bradley T45, T47, or T50 terminal, an IBMr-AT or XT, a Compaqr Portable, Portable II, Deskpro 286, 386/SX, 386, a Tandy 3000HL, Toshiba 3100E, or GATEWAY 2000 models 386DX/25, 386DX/33, 486DX/33, and 486DX2/50 personal computer. Your computer must have:

•640 Kbytes of RAM (extended or expanded memory is recommended, but not required)

•10 Mbyte fixed-disk drive (APS requires a minimum or 2.5 MBytes of free disk space.)

•DOS version 3.1 or higher

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Chapter 1

Selecting Your Hardware Components

Advanced Programming Software, 1747±PA2E

APS, Catalog Number 1747±PA2E, comes on 5±1/4 and 3±1/2 inch disks. You must have DOS installed in your computer. You also must have at least 550 Kbytes of free memory to execute the APS software. Like the Hand±Held Terminal, APS lets you configure the SLC 500 controller, enter/modify a user program, restore/save programs to the SLC 500, monitor controller operation, and test/troubleshoot. You can also:

•create and print ladder diagrams, data tables, instruction cross references, and configurations

•use cut/copy/paste editor

•store multiple programs in the memory of the computer (on the hard disk)

Refer to the Advanced Programming Software User Manual, Catalog Number 1747±NM002, and the Advanced Programming Software Reference

Manual, Catalog Number 1747±NR001, for information on programming your fixed controller with APS.

DH±485 Interface Converter (1747±PIC)

For communication, use an RS±232/DH±485 Interface Converter between the computer and SLC controller. The converter includes a 279.4 mm (11.0 in.) ribbon cable, already attached to the converter, for connection to the computer serial port and a Catalog Number 1746±C10 cable for connection to the controller.

Monitoring with a Data Table Access Module (1747-DTAM-E)

The Data Table Access Module (DTAM) is a plant floor device that lets you access data file information, change operating modes, monitor and clear processor faults, and transfer the user program between RAM and an EEPROM memory module with any SLC 500 family processor. You cannot use it to create new programs.

Important features of DTAM include:

•shorthand addressing, which provides easier access to data files

•display prompts in six, user±selectable languages: English, French, German, Italian, Spanish, and Japanese

•UL listed, CSA Certified

•NEMA type 12 and 13 enclosures

•point±to±point interface to an SLC family processor, or as a network device on a DH±485 network

Refer to the Data Table Access Module (DTAM) User Manual, Catalog Number 1747±ND013, for information on monitoring your fixed controller with the DTAM.

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EEPROM and UVPROM

Memory Modules

Chapter 1

Selecting Your Hardware Components

These optional memory modules provide a non±volatile memory back±up in a convenient modular form. The modules plug into a socket on the controller.

You can store (save) your program in the EEPROM by inserting it into the processor and using either the Hand±Held Terminal or Advanced Programming Software.

Use of the UVPROM provides you with an extra degree of program security because the user program cannot be altered while it is installed in the controller. You can program the UVPROM with commercially available UVPROM programming and erasing equipment. You can use an EEPROM module as a master, or you can use an archived processor file as the source by using the APS PROM translator utility.

Adapter sockets are required when inserting memory modules into commercially available PROM programmer. The memory module fits into the adapter socket and then into a PROM programmer.

ATTENTION: Make sure the adapter is inserted properly or

!damage could result.

The following table lists the types of memory modules that are available for the fixed controller. Also listed are the manufacturer part number for determining compatibility with an external PROM burner.

	Description	Catalog Number	Manufacturer	Manufacturer’s Part Number
			NEC	uPD28C64 - 250
			OKI	MSM28C64ARS - 20
	1K User Words EEPROM	1747-M1
			XICOR	X28C64BP - 25
			SEEQ	PE28C64 - 250
				X28C256DI - 25
			XICOR
	4K User Words EEPROM	1747-M2		X28256DI - 25
			SEEQ	DE28C256 - 25
	1K User Words UVPROM	1747-M3	Fujitsu	MBM27C64 - 25
	4K User Words UVPROM	1747-M4	Not compatible with the fixed controller.
	Adaptor Socket	1747-M5	NA	NA

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