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Allen-Bradley micrologix 1500 User Manual
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Publicati
on 1764-UM001
B-EN-P - April 2002
C-6
T
roublesh
ooting Y
our Syste
m
129
131
Table of Contents
Default Chapter
5
Table of Contents
5
Preface
11
Purpose of this Manual
11
Related Documentation
11
Who Should Use this Manual
11
Common Techniques Used in this Manual
13
Rockwell Automation Support
13
Local Product Support
13
Technical Product Assistance
13
Your Questions or Comments on this Manual
14
Chapter 1
15
Hardware Features
15
Hardware Overview
15
Micrologix 1500 Component Descriptions
16
Base Units
16
Processors
17
Data Access Tool (Catalog Number 1764-DAT)
17
Memory Modules/Real-Time Clock
18
Cables
18
Programming
19
Communication Options
20
Compactâ„¢ Expansion I/O
20
End Cap
20
Expansion Power Supply and Cables
21
System Requirements for Using Expansion Modules
21
Adding an I/O Bank
23
Addressing Expansion I/O
25
Expansion I/O Power Failure
25
Agency Certifications
27
Chapter 2
27
Compliance to European Union Directives
27
EMC Directive
27
Low Voltage Directive
28
Installing Your Controller
27
Installation Considerations
28
Safety Considerations
29
Hazardous Location Considerations
29
Disconnecting Main Power
30
Safety Circuits
30
Power Distribution
31
Periodic Tests of Master Control Relay Circuit
31
Power Considerations
31
Isolation Transformers
31
Power Supply Inrush
32
Loss of Power Source
32
Input States on Power down
32
Other Types of Line Conditions
33
Preventing Excessive Heat
33
Master Control Relay
34
Using Emergency-Stop Switches
35
Schematic (Using IEC Symbols)
36
Schematic (Using ANSI/CSA Symbols)
37
Base Unit Mounting Dimensions
38
Controller Spacing
38
Mounting the Controller
39
Using a DIN Rail
40
Base Unit Panel Mounting
42
Installing Controller Components
43
Prevent Electrostatic Discharge
43
Processor
43
Data Access Tool (DAT)
45
Memory Module/Real-Time Clock
46
Compact I/O
48
Chapter 3 Wiring Requirements
51
Wiring Recommendation
52
Using Surge Suppressors
54
Recommended Surge Suppressors
56
Grounding the Controller
56
Wiring Diagrams
58
Miswiring - 1764-28BXB Only
58
Terminal Block Layouts
59
Terminal Groupings
60
Sinking and Sourcing Input Circuits
60
1764-24AWA Wiring Diagram
61
1764-24BWA Wiring Diagram with Sinking Inputs
62
1764-24BWA Wiring Diagram with Sourcing Inputs
63
1764-28BXB Wiring Diagram with Sinking Inputs
64
1764-28BXB Wiring Diagram with Sourcing Outputs
65
Controller I/O Wiring
66
Minimizing Electrical Noise
66
Transistor Output Transient Pulses
66
Default Communication Configuration
69
Chapter 4
70
Communications Toggle Push Button
70
DF1 Full-Duplex Communication Parameters
71
Making a DF1 Full-Duplex Point-To-Point Connection
71
Connecting to the RS-232 Port
71
Using a Modem
73
Isolated Modem Connection
73
Connecting to a DF1 Half-Duplex Network
75
Connecting to a DH-485 Network
78
DH-485 Configuration Parameters
80
Recommended Tools
80
DH-485 Communication Cable
80
Communication Cable Connection to the DH-485 Connector
81
Connecting the AIC
83
Connecting to Devicenet
90
Cable Selection Guide
90
Connecting to Ethernet
91
Ethernet Connections
91
RS-232 Connections
92
Using Trim Pots and the Data
93
Data Access Tool (DAT)
94
DAT Keypad and Indicator Light Functions
94
Power-Up Operation
95
DAT Function File
96
Power Save Timeout (PST) Parameter
96
Understanding the DAT Display
97
Entering Bit Mode
98
Entering Integer Mode
98
Monitoring and Editing
98
F1 and F2 Functions
99
Working Screen Operation
99
Non-Existent Elements
100
Controller Faults
100
Error Conditions
101
Chapter 5 Trim Pot Operation
93
Trim Pot Information Function File
94
Error Conditions
94
Chapter 6 Real-Time Clock Operation
103
Removal/Insertion under Power
103
Real-Time Clock Function File
103
Accuracy
104
Writing Data to the Real-Time Clock
104
RTC Battery Operation
104
Using Real-Time Clock and Memory Modules
103
Memory Module Operation
105
User Program and Data Back-Up
105
Program Compare
106
Data File Download Protection
106
Memory Module Write Protection
107
Removal/Insertion under Power
107
Memory Module Information File
107
Appendix A Controller Specifications
109
Choosing a Power Supply
110
Transistor Output Transient Pulses
116
Compact I/O Dimensions
117
Panel Mounting
117
End Cap
118
Appendix B
119
Controller Dimensions
117
Micrologix 1500 Replacement Kits
119
Lithium Battery (1747-BA
120
Installing
120
Battery Handling
121
Storing
121
Transporting
121
Disposing
122
Replacement Terminal Blocks
123
Replacement Doors
124
Base Terminal Door (1764-RPL-TDR1
124
Processor Access Door (1764-RPL-CDR1
124
Base Comms Door (Included in 1764-RPL-DR
124
Trim Pots/Mode Switch Cover Door (Included in 1764-RPL-DR
124
Understanding Controller Leds
125
Appendix C
126
When Operating Normally
126
When an Error Exists
126
Controller Error Recovery Model
127
Identifying Controller Faults
128
Automatically Clearing Faults
128
Manually Clearing Faults Using the Fault Routine
128
Fault Messages
129
Calling Rockwell Automation for Assistance
129
Appendix D Preparing for Upgrade
131
Missing/Corrupt os LED Pattern
132
Performing the Upgrade
132
Appendix E
133
Communication Interface
133
DF1 Full-Duplex Protocol
133
DF1 Half-Duplex Protocol
134
DF1 Half-Duplex Operation
134
Considerations When Communicating as a DF1 Slave on a Multi-Drop Link
135
Using Modems with Micrologix 1500 Programmable Controllers
135
Dial-Up Phone Modems
136
Leased-Line Modems
136
Radio Modems
137
Line Drivers
137
Communication Protocol
137
DH-485 Network Description
137
DH-485 Token Rotation
138
DH-485 Configuration Parameters
138
Devices that Use the DH-485 Network
139
Important DH-485 Network Planning Considerations
140
ASCII Protocol (Micrologix 1500 1764-LSP and 1764-LRP Series B and Later Processors Only
145
Modbus RTU Slave Communication Protocol (Micrologix 1764-LSP and 1764-LRP Series B and Later Processors Only
145
Appendix F System Expansion Calculations
147
Selecting System Devices
148
Verifying the System Loading
150
System Loading Limitations
147
Calculating Heat Dissipation
155
Publication 1764-UM001B-EN-P - April
156
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Allen-Bradley micrologix 1500 Specifications
General
Brand
Allen-Bradley
Model
micrologix 1500
Category
Controller
Language
English
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