Rockwell-automation 1771-QA Stepper Positioning Assembly User Manual Manuale Utente Pagina 122
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F
F
5–2 Troubleshooting
Publication 1771-UM002A–EN–P – May 2000
Table 5.A
Power-Up Troubleshooting
Led Indication Possible Cause Corrective Action
PC COMM FAULT
1
EXPANDER COMM FAULT
1
ACTIVE
1
MODULE FAULT
2
Normal Operation None
PC COMM FAULT
EXPANDER COMM FAULT
ACTIVE
MODULE FAULT
Expander address is incorrect.
More than one 1771-M1 module in the
chassis
No 1771-OJ module in the chassis
Switch 3 on 1771-OJ module must be 001,
010 or 011.
Install only one 1771-M1 module per chassis.
Install at least one 1771-OJ module per
chassis.
PC COMM FAULT
EXPANDER COMM FAULT
ACTIVE
MODULE FAULT
Block transfer error Check cables and adapters for faulty or
intermittent operation.
Check for invalid block transfer starting
address.
PC COMM FAULT
EXPANDER COMM FAULT
ACTIVE
MODULE FAULT
Communications error between 1771-M1
module and 1771-OJ
Check that all modules are properly installed
in chassis.
Noisy environment: check earth grounding of
chassis power supplies, stepper
motor/translator and noise sources (relays,
motors, etc.) too close to the chassis.
PC COMM FAULT
EXPANDER COMM FAULT
ACTIVE
MODULE FAULT
Hardware failure Cycle power to chassis.
If problem still exists, replace module.
PC COMM FAULT
EXPANDER COMM FAULT
ACTIVE
MODULE FAULT
Communications error between 1771-M1 and
1771-OJ modules
Initialization error
Watchdog timers timed-out
See CORRECTIVE ACTION above for
Comm. Error between 1771-M1 and 1771-OJ
modules.
Hardware error, see above
Hardware error, see above
1
LED indicators on the stepper controller module
2
LED indicator on the pulse output expander module
Legend: ON OFF Flashing
- Positioning 1
- Assembly 1
- Allen-Bradley 1
- Important User 2
- Information 2
- Table of Contents 3
- Table of Contentsii 4
- Example Programs 5
- CSA Hazardous Location 5
- Approval 5
- Table of Contentsiv 6
- 7
- Understand Compliance to 8
- European Union Directives 8
- 1–3Introduction 9
- 1–4 Introduction 10
- Assembly and Installation 11
- Power Supply 12
- Considerations 12
- Pulse Output Expander 13
- Table 2.A 14
- Figure 2.2 14
- Output Format (S1) 15
- Input Logic (S2) 16
- Expander Module Address (S3) 16
- Switch Assembly S3 Expander 17
- ON OFF OFF 1 17
- OFF ON OFF 2 17
- ON ON OFF 3 17
- Diagnostic Indicators 18
- Installation 19
- Compatibility 21
- Module Specifications 21
- Pr ogramming and Operation 23
- Move Definition 24
- Positioning Modes 25
- MS Preset Word 30
- Not Used (Must be zero) 31
- 17 10 07 00 36
- Move Block 39
- • Single Move Control Word 39
- • Move Data 39
- Status Block 42
- • Status Word 42
- • Position Word 42
- Block Transfer 47
- Programming 47
- Programming Considerations 52
- , bit 13 54
- Table 3.A 56
- Size of Data Files 56
- Handshaking 57
- 13 Command Verify 00 59
- • Program length = 2K words 65
- Application 66
- Resonant Frequency 76
- Table 3.C 77
- Output Accuracy 77
- Table 3.D 77
- Ramp and Decel Time Accuracy 77
- Minimum Move Time 78
- Example Pr ograms 79
- Programming a 1-Axis Profile 80
- Example 1-Axis Program 83
- HEXADECIMAL DATA MONITOR 85
- FILE-TO-FILE MOVE 85
- POSITION: 001 85
- 4–8 Example Programs 86
- 4–9Example Programs 87
- Table 4.A 87
- Ignored in this example 88
- 4–11Example Programs 89
- 4–12 Example Programs 90
- 4–14 Example Programs 92
- 3-Axis Program 93
- Programming a 3-Axis 96
- 4–19Example Programs 97
- Example 3-Axis Program 98
- MS Preset 104
- 4–36 Example Programs 114
- 4–37Example Programs 115
- 4–38 Example Programs 116
- Operational Summary 117
- 4–42 Example Programs 120
- Tr oubleshooting 121
- 5–2 Troubleshooting 122
- Table 5.A 122
- Power-Up Troubleshooting 122
- Troubleshooting 124
- Illegal Bit Combinations 125
- 5–6 Troubleshooting 126
- Specifications 127
- CSA Hazar dous Location 129
- Appr oval 129
- Worldwide representation 132
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