ViaSat 3862 User manual

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Model 3862
Autotrack Digital Controller
Operation and Maintenance Manual
Manual Part No. 1000569
January 2003
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

Notice
All Rights Reserved
The information contained in this document is proprietary to ViaSat, Inc.
This document may not be reproduced or distributed in any form without
the consent of ViaSat, Inc.
The information in this document is subject to change without notice.
ViaSat, Inc. assumes no responsibility for any errors that may appear in
this document and does not warranty any specific application.
Any product names mentioned herein are used for identification purposes
only, and may be trademarks and/or registered trademarks of their
respective companies.
In all correspondence with ViaSat, Inc. regarding this publication, please
refer to the Manual Part No. on the title page.
Copyright ® 2003 ViaSat, Inc.
All rights reserved. No part of this book may be reproduced in any form
or by any means without permission in writing from ViaSat, Inc.
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

Table of Contents
Table of Contents
Table of Contents .................................................................................................. iii
List of Figures ......................................................................................................viii
List of Tables .......................................................................................................... ix
Safety Summary ......................................................................................................x
General Information ........................................................................................... 1-1
1.1 Introduction .............................................................................................................1-1
1.2 Contents of this Manual .........................................................................................1-1
1.3 Use of this Manual ..................................................................................................1-1
1.4 Format of this Manual ............................................................................................1-2
1.5 Change Recommendations ....................................................................................1-2
1.6 Description ...............................................................................................................1-2
1.6.1 Major Components .................................................................................................1-3
1.6.2 Functional Configurations .....................................................................................1-3
1.6.3 Physical Configurations .........................................................................................1-4
1.7 Specifications ...........................................................................................................1-6
1.8 Glossary of Symbols and Abbreviations..............................................................1-7
Installation............................................................................................................ 2-1
2.1 Introduction .............................................................................................................2-1
2.2 Unpacking and Inspection.....................................................................................2-1
2.2.1 Damage or Loss During Shipment .......................................................................2-1
2.3 Equipment Return...................................................................................................2-1
2.4 Installation Procedure ............................................................................................2-2
2.4.1 General......................................................................................................................2-2
2.4.2 Chassis Slide Mounting..........................................................................................2-2
2.4.3 Cable Connectors ....................................................................................................2-3
2.4.4 Host Computer Interfaces....................................................................................2-16
2.4.4.1 Serial Communications ........................................................................................2-16
3862 Autotrack Controller iii
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Table of Contents
2.4.4.2 IEEE-488 Communications ..................................................................................2-16
2.4.5 Time-stamped Position and Autotrack Status Message..................................2-18
2.4.6 GPS Time-code Interface......................................................................................2-20
2.4.7 Power Input ...........................................................................................................2-20
2.5 Initial Checkout .....................................................................................................2-20
2.5.1 Initial Turn-on and Checkout..............................................................................2-21
2.5.2 Axis Position Offsets.............................................................................................2-24
Operation.............................................................................................................. 3-1
3.1 Introduction .............................................................................................................3-1
3.2 Modes of Operation ................................................................................................3-1
3.2.1 Local Pedestal Control............................................................................................3-1
3.2.2 Remote Control........................................................................................................3-2
3.2.3 Front-panel Control ................................................................................................3-2
3.3 Front-panel controls and indicators .....................................................................3-2
3.3.1 Liquid Crystal Display Indicators.........................................................................3-4
3.3.2 Data Entry ................................................................................................................3-5
3.3.3 Softkeys.....................................................................................................................3-6
3.3.4 Top Level Softkey Menu ........................................................................................3-6
3.3.5 Front-panel Operating Procedures .......................................................................3-6
3.3.6 Power Up And Down.............................................................................................3-6
3.3.7 Emergency Shutdown ............................................................................................3-8
3.3.8 Standby Mode..........................................................................................................3-8
3.3.9 Position Mode..........................................................................................................3-8
3.3.10 Rate Mode ................................................................................................................3-9
3.3.11 Track Mode ..............................................................................................................3-9
3.3.12 Menus .......................................................................................................................3-9
3.3.13 Softkey Axis Assignment .......................................................................................3-9
3.3.14 Secondary Modes ..................................................................................................3-10
3.3.14.1 Standby Mode........................................................................................................3-10
3.3.14.2 Scan Mode ..............................................................................................................3-11
3.3.14.3 Slave Mode.............................................................................................................3-11
3.3.14.4 Stow Mode .............................................................................................................3-11
3862 Autotrack Controller iv
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Table of Contents
3.3.15 Setup Menus ..........................................................................................................3-12
3.3.15.1 Servo Parameters...................................................................................................3-12
3.3.15.1.1 Digital Filter Selection ..........................................................................................3-12
3.3.15.1.2 Torque Bias Parameters........................................................................................3-14
3.3.15.1.3 Test Port Signal Selection .....................................................................................3-14
3.3.15.1.4 Step Response Test................................................................................................3-15
3.3.15.2 Scan Parameters ....................................................................................................3-16
3.3.15.2.1 Sector Scan..............................................................................................................3-17
3.3.15.2.2 Step Scan.................................................................................................................3-17
3.3.15.2.3 Spiral Scan ..............................................................................................................3-18
3.3.15.3 Position Parameters ..............................................................................................3-18
3.3.15.4 Limit Parameters ...................................................................................................3-19
3.3.16 Control Menus.......................................................................................................3-20
3.3.16.1 Local/remote Control...........................................................................................3-21
3.3.16.2 Autotrack Mode ....................................................................................................3-22
3.3.16.3 Steptrack Mode......................................................................................................3-24
3.3.16.4 AGC Channel Input..............................................................................................3-25
3.3.16.5 Digital Controller Setup Configuration Store/recall .......................................3-26
3.3.16.6 Feed Scan Selection ...............................................................................................3-28
3.3.16.7 Time And Date Set ................................................................................................3-29
3.3.16.8 Status And Command Lines................................................................................3-29
3.4 Remote operation ..................................................................................................3-30
Principles of Operation ...................................................................................... 4-1
4.1 Introduction .............................................................................................................4-1
4.2 Functional description............................................................................................4-1
4.2.1 Servo Assembly .......................................................................................................4-7
4.2.2 Synchro/resolver Assembly..................................................................................4-8
4.2.3 Operator/remote Interface Assembly................................................................4-10
4.2.4 Autotrack Assembly (Optional)..........................................................................4-11
4.2.5 Resolver Reference Oscillator Assembly ...........................................................4-12
4.2.6 Synchro Reference.................................................................................................4-13
4.2.7 Analog Rate Loop Assembly (Optional)............................................................4-13
3862 Autotrack Controller v
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Table of Contents
4.2.7.1 Loop Compensation..............................................................................................4-13
4.2.7.2 Differential Tach/torque Bias (dual Drive System) .........................................4-13
4.2.8 Motherboard ..........................................................................................................4-14
4.2.9 Front Panel .............................................................................................................4-14
4.2.10 Front-panel Board Assembly...............................................................................4-15
Maintenance......................................................................................................... 5-1
5.1 Introduction .............................................................................................................5-1
5.2 Preventive Maintenance.........................................................................................5-1
5.2.1 Visual Inspection.....................................................................................................5-1
5.2.2 Cleaning....................................................................................................................5-2
5.3 Test Equipment........................................................................................................5-2
5.4 Troubleshooting ......................................................................................................5-2
5.5 Alignment.................................................................................................................5-6
5.6 Repair........................................................................................................................5-6
5.6.1 Prerequisites To Removal And Installation.........................................................5-7
5.6.2 Internal Component Access...................................................................................5-7
5.6.3 Servo, Synchro/resolver, ORI, Or Autotrack Board Removal..........................5-7
5.6.4 Servo, Synchro/resolver, ORI, Or Autotrack Board Installation .....................5-8
5.6.5 Resolver Reference Board Removal......................................................................5-8
5.6.6 Resolver Reference Board Installation .................................................................5-9
5.6.7 Power Supply Removal........................................................................................5-10
5.6.8 Power Supply Installation....................................................................................5-10
5.6.9 Power Inverter Removal ......................................................................................5-10
5.6.10 Power Inverter Installation ..................................................................................5-11
5.6.11 Optical Encoder Removal ....................................................................................5-11
5.6.12 Optical Encoder Installation ................................................................................5-12
5.6.13 Fan Assembly Removal........................................................................................5-13
5.6.14 Fan Assembly Installation....................................................................................5-13
Parts List ............................................................................................................... 6-1
6.1 Introduction .............................................................................................................6-1
6.2 Parts List and Assembly Drawings ......................................................................6-1
6.2.1 Explanation of Title Block on Parts Listing .........................................................6-1
3862 Autotrack Controller vi
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Table of Contents
6.2.2 Explanation of Parts Lists Column Headings .....................................................6-1
6.3 Ordering Parts .........................................................................................................6-2
Drawings .............................................................................................................. 7-1
7.1 Introduction .............................................................................................................7-1
7.2 Drawing Index.........................................................................................................7-1
3862 Autotrack Controller vii
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Table of Contents
LIST OF FIGURES
Figure 1.1. 3860 Digital Controller........................................................................................................1-2
Figure 1.2. 3860 Digital Controller Functional Configurations ........................................................1-5
Figure 2.1. Typical Slide Mounting ......................................................................................................2-2
Figure 2.2. Typical Rear-panel Connector Interface..........................................................................2-6
Figure 3.1. 3860 Digital Controller Front Panel.............................................................................3-3
Figure 3.2. LCD Controls And Indicators .......................................................................................3-5
Figure 3.3. Top Level Softkey Menu.................................................................................................3-7
Figure 3.4. Softkey Axis Assignment ...............................................................................................3-9
Figure 3.5. Secondary Modes............................................................................................................3-10
Figure 3.6. Servo Parameters ...............................................................................................................3-13
Figure 3.7. Scan Parameters ..............................................................................................................3-16
Figure 3.8. Position Parameters........................................................................................................3-19
Figure 3.9. Limit Parameters.............................................................................................................3-20
Figure 3.10. Control Menus...............................................................................................................3-21
Figure 3.11. Local/remote Control Selection ...............................................................................3-22
Figure 3.12. Autotrack Mode Parameters..........................................................................................3-23
Figure 3.13. Steptrack Mode Parameters ..........................................................................................3-24
Figure 3.14. AGC Channel Input Parameters ..............................................................................3-25
Figure 3.15. Digital Controller Setup Configuration Store/recall..........................................3-27
Figure 3.16. Feed Scanner Control...................................................................................................3-28
Figure 3.17. Time And Date Set .......................................................................................................3-29
Figure 4.1. 3860 Digital Controller Block Diagram, Single-chassis Configuration ........................4-3
Figure 4.2. 3860 Digital Controller Block Diagram, Two-chassis Configuration...........................4-5
Figure 4.3. Servo Assembly Block Diagram ........................................................................................4-7
3862 Autotrack Controller viii
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Table of Contents
Figure 4.4. Synchro/resolver Assembly Block Diagram ...................................................................4-9
Figure 4.5. Operator/remote Interface Assembly Block Diagram.................................................4-10
Figure 4.6. Autotrack Assembly Block Diagram ..............................................................................4-12
LIST OF TABLES
Table 1-1. Series 13000 Pedestal Technical Specifications .................................................................1-4
Table 1-2. Environmental Specifications.............................................................................................1-5
Table 4-1. Position Data Package Electrical Interface .......................................................................4-4
Table 4-2. Gearmotor Electrical Interface ...........................................................................................4-6
Table 5-1. Tools and Test Equipment..................................................................................................5-1
Table 5-2. Periodic Maintenance Chart ...............................................................................................5-2
Table 5-3. Routine Inspection ...............................................................................................................5-2
Table 5-4. Consumable Materials List .................................................................................................5-6
Table 5-5. Troubleshooting Chart ........................................................................................................5-7
Table 5-6. Finish Repair Consumable Materials ................................................................................5-9
Table 7.1. Drawing Index......................................................................................................................7-1
3862 Autotrack Controller ix
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