Advantech user manual Introducing the INTRAC-305, Introduction INTRAC-305

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INTRODUCTION

INTRAC-305

INTRODUCING THE INTRAC-305

The INTRAC-305 INtelligent TRacking Antenna Controller is a microprocessor based controller for tracking any nominally geostationary satellite including those at low elevation or with high angles of inclination. It has been designed as a direct physical replacement for the Andrew APC300 Steptrack Controller. For information on replacing an Andrew APC300 with the INTRAC-305 see section 6 - Installation.

The INTRAC-305 builds a model of the satellite’s orbit using a mathematical algorithm. To build the orbit model the INTRAC makes measurements by perturbing the antenna pointing angle very slightly and monitoring the change in received beacon signal strength. These small movements enable the INTRAC to estimate the position of the satellite and this estimate is used by the modelling algorithm.

The system always tracks the satellite from the orbit model. The small movements of antenna pointing are only used to maintain and update the model.

By using the model to point the antenna the INTRAC system ensures that the antenna is always pointed accurately at the satellite. This is in contrast to Step Track systems where the antenna spends most of the time not actually pointing directly at the satellite.

The regular measurements made by the INTRAC ensure that changes in the apparent orbit, due to station keeping manoeuvres or other causes, are identified. The model is modified and refined to incorporate these changes and accurate tracking is automatically maintained. The INTRAC will automatically increase the measuring rate if necessary in order to obtain sufficient information on the changing orbit.

As the INTRAC tracks using its orbit model it will continue to track the satellite if the tracking signal is degraded or lost. The satellite position may be accurately predicted from the model for up to 72hrs without a tracking signal.

The INTRAC system provides this exceptional tracking performance and robustness for satellites with any inclination, at any look angle, even in the presence of severe beacon signal degradation entirely automatically. No operator intervention or parameter setting is required when conditions or satellites are changed.

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INTRAC-305 MANUAL - ISSUE 3.2

© 2011 Advantech Wireless

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Contents INTRAC-305 PrefacePreface PrefaceManual Sections INTRAC-305 Contents INTRAC-305 SubjectContents InstallationIntroducing the INTRAC-305 Introduction INTRAC-305Introduction Retro FittingIquick Start Guide INTRAC-305 Quick Start Guide Electrical SafetySafety INTRAC-305 Do not Place in Normal Garbage or in a FireSafety MechanicalEMC Page Specification & Options Specification & OptionsRequired Mechanical Characteristics of the Antenna System Specification Specification & Options INTRAC-305Do not Mount by Front Panel Lugs Alone Voltage Serial InterfacesINTRAC-305 Deliberately blank Operating the INTRAC-305 OperationFront Panel Operation INTRAC-305 Menu StructureNext Field System SetupFunction EnterAlphabetical Index of Menus INTRAC-305 Home HomeStandby StandbyNEW Mode Goto Auto Continue New ModelHome NEW Mode Menu KEY MANUAL/STOWGoto Position Operation SearchGoto Satellite Auto Continue Auto NEW Model Remote Terminal Diagnostics Must be Function ConfigurationWhen IT is Required to Control the Intrac from Switched OFFBeacon Frequency Home Function Menu KEY 6 EnterConfig Menu KEY 6 X2 Enter Edit Satellite TableHome Function Menu KEY 6 X2 Enter Drive in Manual Mode is not Inhibited by Soft LimitsSoft Limits X2 Setup X2 Resolver SetupDiagnostics on / Diagnostics OFF Diagnostics OnBeacon Threshold Home Function System Setup Enter System Setup EnterContrast & Brightness Home Function System Setup Fine Tune senseFine Tune Offsets Azimuth true Elevation invStation CO-ORDINATES Date & Time Time Rate Correction AZ & EL Beamwidth Stow Setup Select Stow USE UsedFitted Options Rapid Model Generate Home Function Models EnterModels Enter Program Track Home Function Models Menu KEY 6 EnterModels Menu KEY 6 Enter Reserve Model Home Function ModelsINTRAC-305EDIT IESS-412 Edit Norad Buffer Edit Star Track Edit Satellite Table Clear Models Intrac IESS-412Show Alarms MoreREMOTE/LOCAL Normal Operation Alarms & Errors Alarms & ErrorsPrimary Alarms Alarm Outputs Alarms & Errors INTRAC-305Secondary Alarms Recovering from AlarmsPower Failure INTRAC-305 Alarms & ErrorsErrors IESS-412 DataDeliberately blank Technical Description Technical DescriptionTechnical Description INTRAC-305 Modes Auto normal operating mode Technical DescriptionWhere the satellite’s position is only roughly known search 72hrs, the beacon is still not producing a useful signal*Using either IESS-412 or Norad data. see Reserve Model High accuracy of the model the tracking is within 0.05dBManually or in search mode see below. To commence Enters Standby. The antenna can then be peaked usingManual mode or search mode see below before selecting During those scans and phase two of the search isUsing IESS-412 or Norad Data Than two places of decimals LMO value is given in the range -180to +180.XNDD60 EpochXNDT20 BstarAntenna Motion Limits Tracking Signal Axes PositionTechnical Description INTRAC-305 Installation InstallationInstallation INTRAC-305 Connections generalInstallation Connections Block DiagramRear Panel Layout Connector PIN Allocations Intractm 305 Resolvers ConnectorSignals to the Motor Drive Cabinet Motor ControlStp-Trk Inputs / Alarm outputs Communication PortsRemote Port Test Port 1 & 2 RS423 Test Port 1 & 2 RS422Data can be monitored during remote operation by using a Second PC connected to Test PortINTRAC-305 Installation Tracking Signal Input Tracking signal may be provided as a dc voltage from anOperational Checks Emergency Stop switch is releasedAppropriate drive command re-instated Manual OperationRemote Control Auto OperationFault Finding Fault FindingTo power up Fault Finding INTRAC-305Fault Symptoms Intrac doesn’t appearTWO Part Retaining PIN Switch consists of two normally closed N.C. contacts System Alarm indicator to illuminate and the Intrac toEnter Standby Mode Pressing the switch opens both sets of contacts. The switchNo Antenna Drive ExampleFault Finding INTRAC-305 Warranty Warranty & RepairWarranty & Repair Repair ServiceCustomer either by a Purchase Order or through a Repair AMT Limited will investigate the fault, determine the mostEffective repair technique and issue a repair cost estimate Contract