Delta MMC120 User Manual Page 9
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MMC120 Linear Motion Control Module Overview
Delta Computer Systems, Inc. 360/254-8688 9
OVERVIEW
The MMC120 Motion Control Module is a complete two-axis position control subsystem for the Modicon TSX
Quantum Automation Series
family of Programmable Controllers. An onboard processor controls the axes,
providing complete independent PID motion control loops and allowing on-the-fly motion profile changes.
The module has two optically isolated magnetostrictive transducer interfaces and two optically isolated ±10
volt outputs.
The MMC120 occupies one slot of the Quantum rack. The MMC120 and the Programmable Controller
communicate over the backplane through four output and four input registers. The onboard 80C188EB
20MHz processor relieves the Programmable Controller of the overhead needed for servo control. The Motion
Control Module updates the axis position and drive output 1000 times each second, assuring precise
positioning even at high speeds.
If more than two axes of control are needed, additional MMC120 modules can be installed.
Features
General
• Modicon TSX Quantum Automation Series
compatible (ModConnect
Certified)
• Uses one slot of Quantum rack
• Hot swappable
• Linear position control
• 80C188EB processor operating at 20 MHz
• 1 millisecond control loop time
• Magnetostrictive Transducer Interface
• Maximum velocity in excess of 120 inches per second
• Maximum transducer length greater than 220 inches
• Hardware fail safe timers
• FLASH memory for parameter and profile storage
• Software configurable -- no jumpers or switches
• Diagnostic and tuning software included
Position Inputs
• Two optically isolated magnetostrictive transducer interfaces
• Differential or single-ended signal compatibility
• Start/Stop or Pulse Width Modulated signal compatibility
• 120 MHz count rate -- counting both edges of a 60 MHz clock
• 1 circulation
• Position resolution better than 0.001 of an inch
Modicon, ModConnect and TSX Quantum Automation Series are registered trademarks of Schneider
- Linear Motion Control Module 1
- Rev 1.00 1
- Printed in U.S.A 2
- Contents 3
- OVERVIEW 9
- Drive Outputs 10
- SPECIFICATIONS 11
- Bus Compatibility 12
- Fail Safe Timers 12
- DESCRIPTION 13
- Maximum Speed 14
- Deceleration Ramp 14
- Acceleration Ramp 14
- FRONT PANEL INDICATORS 16
- SETUP CHECKLIST 17
- PREPARING FOR INSTALLATION 18
- Hydraulic System Notes 21
- Initialization Parameters 22
- Moving The Axis 23
- Open Loop Procedure 24
- Jogging The Axis 26
- MOTION CONTROL PARAMETERS 27
- CONFIGURATION Word Bit Map 29
- SCALE Calculation Examples 30
- OFFSET (Default: 0) 31
- Motion Control Commands 35
- ACCELERATION (Default: 1000) 36
- MODE Word Bit Map 37
- DECELERATION (Default: 1000) 38
- SPEED (Default: 1000) 38
- COMMAND VALUE 38
- Move Profiles 39
- MMC120 Initial Move Profiles 40
- Readback Parameters 41
- COMMAND POSITION 43
- TARGET POSITION 43
- TRANSDUCER COUNTS 44
- ACTUAL SPEED 44
- STATUS Word Bit Map 45
- FLASH MEMORY 46
- COMMUNICATING WITH THE MMC120 47
- I/O Register Overview 48
- Output Registers 49
- COMMANDS 49
- Command Types 50
- Input Registers 65
- QUANTUM PROGRAMMING HINTS 66
- TROUBLESHOOTING 67
- The axis oscillates 68
- HYDRAULIC SYSTEM PROBLEMS 69
- Pumps and Accumulators 70
- Identification and Correction 70
- If the speeds show: 72
- REPAIRS AND RETURNS 73
- GLOSSARY OF TERMS 74
- ASCII TABLE 75
- Description 76
- General Features 76
- DCS120 Default Startup Screen 77
- Stall.plt 78
- Screen After Installation 79
- The DCS120 Screen 80
- Summary of Keyboard Commands 81
- Alt Key Commands 82
- Additional keys 82
- Diagnostic Graphs 83
- Keyboard Commands 84
- Variable Datalogging Rates 85
- Moving Axes Simultaneously 86
- Table Editors 86
- Advanced Features 87
- Setting Up Advanced Features 87
- Initialization File 88
- Project Files 90
- .FNn (Function Key) example: 91
- User Notes 93
- MMC120 Communication Cable 94
- Appendix B: Event Control 95
- Step Table 96
- Linking Steps 97
- Step Execution 99
- Starting a Sequence 100
- Using DCS120 101
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