Allen-Bradley micrologix 1500 User Manual

Publication 1764-UM001B-EN-P - April 2002
Table of Contents vi
Input States on Power Down . . . . . . . . . . . . . . . . . . . . 2-6
Other Types of Line Conditions . . . . . . . . . . . . . . . . . . 2-7
Preventing Excessive Heat. . . . . . . . . . . . . . . . . . . . . . . . . 2-7
Master Control Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
Using Emergency-Stop Switches . . . . . . . . . . . . . . . . . . 2-9
Schematic (Using IEC Symbols) . . . . . . . . . . . . . . . . . . 2-10
Schematic (Using ANSI/CSA Symbols). . . . . . . . . . . . . . 2-11
Base Unit Mounting Dimensions . . . . . . . . . . . . . . . . . . . . 2-12
Controller Spacing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12
Mounting the Controller . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
Using a DIN Rail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
Base Unit Panel Mounting . . . . . . . . . . . . . . . . . . . . . . 2-16
Installing Controller Components. . . . . . . . . . . . . . . . . . . . 2-17
Prevent Electrostatic Discharge . . . . . . . . . . . . . . . . . . . 2-17
Processor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
Data Access Tool (DAT). . . . . . . . . . . . . . . . . . . . . . . . 2-19
Memory Module/Real-Time Clock. . . . . . . . . . . . . . . . . 2-20
Compact I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22
Chapter 3
Wiring Your Controller
Wiring Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Wiring Recommendation . . . . . . . . . . . . . . . . . . . . . . . 3-2
Using Surge Suppressors . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Recommended Surge Suppressors . . . . . . . . . . . . . . . . 3-6
Grounding the Controller . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
Miswiring - 1764-28BXB Only. . . . . . . . . . . . . . . . . . . . 3-8
Terminal Block Layouts . . . . . . . . . . . . . . . . . . . . . . . . 3-9
Terminal Groupings . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
Sinking and Sourcing Input Circuits . . . . . . . . . . . . . . . . . . 3-10
1764-24AWA Wiring Diagram . . . . . . . . . . . . . . . . . . . . 3-11
1764-24BWA Wiring Diagram with Sinking Inputs . . . . . 3-12
1764-24BWA Wiring Diagram with Sourcing Inputs . . . . 3-13
1764-28BXB Wiring Diagram with Sinking Inputs . . . . . 3-14
1764-28BXB Wiring Diagram with Sourcing Outputs . . . 3-15
Controller I/O Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16
Minimizing Electrical Noise. . . . . . . . . . . . . . . . . . . . . . 3-16
Transistor Output Transient Pulses . . . . . . . . . . . . . . . . 3-16
Chapter 4
Communication Connections
Default Communication Configuration . . . . . . . . . . . . . . . . 4-1
Communications Toggle Push Button. . . . . . . . . . . . . . . . . 4-2
Connecting to the RS-232 Port . . . . . . . . . . . . . . . . . . . . . . 4-3
DF1 Full-Duplex Communication Parameters . . . . . . . . 4-3
Making a DF1 Full-Duplex Point-to-Point Connection . . 4-3

Allen-Bradley micrologix 1500 Specifications

General

Processor Type	16-bit
Programming Language	Ladder Logic
Mounting	DIN rail or panel mount
Programming Software	RSLogix 500
Communication Ports	RS-232
Power Supply	24V DC
Operating Temperature	0°C to 55°C (32°F to 131°F)
Controller Type	Programmable Logic Controller (PLC)