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INTRAC™-204 INSTALLATION & USER MANUAL

1. 2 2 2 eee eee eee eee teen en 30 Rear Panel Layout eege Kee ange dada Seed 31 Connector Pin Allocations LIMITS ve eae eel A NENNEN 31 Remote Pol cocoa ee 32 Beacon Signals cscs stand re nur dei aug dE 32 ROSSO dosp net Rent tidad 33 Fitting to Antenna ooo eee eee eee 33 Setting UP thsi tities EEN EE cen reels dada eval eee 33 Polarisation Potentiometer AA 35 Setting up potentiometer input oooocccconocccnccccconnnnnnnaccnonananana canon 35 Southern Hemisphere eie senean tiaa aaa iaiaaeaia araia T i idee 36 Setting Antenna Beamdidth ee eee eee eee eee een 36 Tracking Signal INPUT ocn ino EE ER 36 18V ENB BDG supply eut egen ele nt bn er lettre ts 36 Operational GhEckS E 38 7 FAULT FINDING Aere ln ne ieee odes ead ies ee nr ie nl pee 41 INTOQUCION y eta tartas 41 Fault Symptoms INTRAC doesn t appear to power UP 42 Pointing angles incorrect een 42 No antenna drive iii 43 No tracking signal eee eee nene 43 Diagnostic Data ass ren etre Midi den ler nade ran hdd esta apse 43 8 WARRANTY amp REPAIR uc eee da 45 Warranty EE 45 Repair Service EE 45 Repairs not under Warranty 46 Page vi INTRAC 204 MANUAL ISSUE 1 1 Advantech WIRELESS 2010 INTRAC 204 INTRODUCTION INTRODUCING THE INTRAC 204 Advantech WIRELESS 2010 The INTRAC 204 INtelligent TRacking Antenna Controller is a microprocessor based controller for antennas in earth station service
2. Reserve Model which is Program Track using either IESS 412 or NORAD data see Reserve Model page 36 useful signal A useful signal is defined as one that varies sensibly during antenna movements is neither over or under range and the beacon receiver is in lock Manual Manual Mode allows the operator to drive the antenna using any one of the four Manual Control keys on the INTRAC front panel Drive is not latched and stops when the key is released Drive Page 20 INTRAC 204 MANUAL ISSUE 1 1 Advantech WIRELESS 2010 INTRAC 204 Goto Sleep Advantech WIRELESS 2010 Note Position Peak Satellite TECHNICAL DESCRIPTION may be latched by pressing the Enter key whilst also pressing the appropriate direction key To unlatch drive the Enter key should be pressed again With a two speed motor drive system fast speed is selected when drive is latched The Drive Fail alarm does not operate in Manual Mode There are three Goto functions Position Peak and Satellite located under menu Goto Also accessed from the Goto menu is the Models menu this menu will be discussed later in this section For this function El and Az co ordinates are entered and the antenna is automatically driven to the co ordinates When the antenna reaches these co ordinates the system enters Standby Peak is a search function Az amp El angles for the centre of the search area are entered together with a search area around t
3. In this example the presence of a beacon signal alarm a secondary alarm can be seen in the display because of the primary alarm conditions existing at the same time INTRAC 205 MANUAL ISSUE 1 1 Advantech WIRELESS 2010 INTRAC 204 TECHNICAL DESCRIPTION 5 TECHNICAL DESCRIPTION Introduction THE MODES Standby Auto normal operating mode Note Learning Advantech WIRELESS 2010 This section looks at and explains the Operational Modes and Functions of the INTRAC 204 including the Tracking Algorithm The INTRAC 204 has six major operational modes Standby Auto tracking but includes learning amp predicting Manual Goto Peak Position 8 Satellite Sleep alarm induced not user selectable Remote transfers control to a remote terminal Standby mode is a no movement mode the antenna is not driven the brakes where fitted will be applied but the pointing angles and beacon signal level are monitored and displayed External inputs to the INTRAC are also monitored and any primary alarms which occur are indicated Standby mode is entered in one of three ways selected by the operator a primary alarm occurs at the end of a Goto Auto is the normal operating mode of the INTRAC 204 However Auto is not the mode displayed on the front panel that is either Tracking Predicting or Learning If Auto is selected when there is a valid model present the I
4. Advantech WIRELESS 2010 INTRAC 204 MANUAL ISSUE 1 1 Page 3 SPECIFICATION SPECIFICATION Tracking Accuracy Prediction Accuracy Tracking Signal Antenna Position Encoders BareSize 11 R11W Position Offset Limit Switches Back up Page 4 INTRAC 204 Typically lt 0 1dB RMS signal degradation after tracking for 24 hours with tracking signal independent of orbit inclination up to 10 Typically lt 0 1dB RMS signal degradation over 24hrs after loss of tracking signal after tracking with signal for 24hrs independent of orbit inclination up to 10 Derived from the L band Integral Beacon Receiver IBR L The internal IBR L reguires an L band signal with a level in the range 80dBm to 45dBm and C No gt 40dB Stability better than 150KHz The receive freguency is selected from the INTRAC front panel or from a remote terminal Single resolver units with an operating freguency of 800Hz nominal provide angular position feedback Two types are available A bare size 11 resolver This unit is not weather resistant and must be mounted in a weatherproof enclosure This unit has short flying leads and is supplied without cable It would normally only be used for weather protected polarisation axis feedback A size 11 resolver that has been fitted with a weatherproof IP66 shroud and a front shaft seal This unit is supplied with 10m of cable Longer cable lengths up to 100m can be supplied if specified
5. Once the orbital model has been built the INTRAC tracks the satellite extremely accurately by continuously monitoring the satellite s position and updating the model When the beacon signal is not present INTRAC can still track accurately by predicting the satellite s position from the model However if the beacon signal is lost for more than 72hrs INTRAC deems the model to be no longer valid In such a situation INTRAC can fall back to a Reserve Model This is a Program Track model built from either the IESS 412 or the NORAD data The selection is made in Models Reserve Model Assuming the appropriated data has been loaded and is valid INTRAC will automatically fall back to this model when it can no longer predict accurately The Clear Models menu is used to clear one or more of the INTRAC Model the IESS 412 Model or the NORAD model Clearing the INTRAC Model clears the current satellite model Selecting Auto Continue after this clearing will cause the INTRAC to enter Learning Mode Clearing the IESS 412 or NORAD Models simply marks the ephemeris data as being no longer valid Selecting IESS 412 or NORAD for Rapid Model Generate or Program Track will cause the menu to jump to the Edit IESS or NORAD data menus for new data to be input Also clearing the data will mean that Reserve Model will not function If there is no valid data for IESS 412 or NORAD when they are selected for Rapid Model Program Track or Reserve the menu jumps
6. 8 data bits 1 stop bit amp no parity The diagnostic data that appears on the PC display screen will be similar to that below PSNUPO 2 31 070 31 056 34 060 0 1303 O 13030 2 STCYCL 2 0 002 31 062 0 019 0 028 31 060 4 0 000 F STCYCL 2 0 005 31 067 0 014 0 048 31 066 3 0 000 F STCYCL 2 0 003 31 066 0 014 0 035 31 070 3 0 000 F STPROC 2 1 60 68 67 1 255 31 064 0 002 0 004 2 0 2 0 2 0 0 004 STPROC 2 1 60 68 67 1 254 31 069 0 002 0 004 2 0 2 0 2 0 0 004 STPROC 2 1 60 68 67 1 252 31 073 0 003 0 004 2 0 2 0 2 0 0 004 CHECKD 68 68 0 00 0 00 0 00 O 174000 40002 42104 TT 12 CHECKD 7 0 0 0 310 160 0 O 8 14 8 14 88 114 To send it to SPL ACT wireless Europe save it as a text file Advantech WIRELESS 2010 INTRAC 204 MANUAL ISSUE 1 1 Page 43 WARRANTY amp REPAIR INTRAC 204 8 WARRANTY amp REPAIR WARRANTY Exclusions REPAIR SERVICE Returning equipment for repair Page 44 Advantech AMT Limited warrants the INTRAC 204 Antenna Control Unit for a period of 24 months from the date of dispatch The liability of Advantech AMT Limited under this warranty shall be limited to repair or replacement of defective units or parts thereof at Advantech AMT s option which are returned in accordance with the RMA procedure carriage and insurance paid to Advantech AMT Limited 39 Edison Road St lves Cambridgeshire PE27 3LF England The returned unit s must be accompanied by a completed RMA fault report and a document de
7. I wen er Li Limit THESE FUNCTIONS ARE ONLY EE Le ne so AVAILABLE IN THE MOBILE VERSION Enter Az Limit OF THE INTRAC 502 Enter Dwell Time Enter az i Enter IBR L Frequency n Standby Auto Manual T T T 1 Press s No Az Beamwidth EI Beamwidth Time Adjust Beacon Limit I Control keys to Change Enter Az Enter El Drie Beamwidth Beamwidth Enter Adjust Beacon Limit Press Enter L L secs day Threshold dB key to latch 1 J T 1 Stow Angles Stow Unstow Elwood T T T 1 Final Az Stow Angle Beacon Remote how E Fine odel Lim 7 Frequency Tune Final EI Stow Angle pres FA Local Remote page Romow pay No Change Prelim Az Stow Angle 1 J Change Resolver Enter Beacon El ter A Freq L band SE Sense Az amp El Prelim El Stow Angle Enter El low limit Adjust offset of displayed A l Enter EI z 8 Elangles high limit Menu E gt END OF MENU In Menu mode the screen changes from its normal display to displaying the menu functions On pressing the Menu key the ten headings from the top row of the menu are displayed in two lines together with the cursor _MODE goto aux exit aux2 stow aux3 aux4 m p more The cursor is moved through the options using the Manual Control left amp right keys The option to the right of the cursor is the one selected and this is indicated by it changing to upper case characters To step through the menu system press the Enter key when the appropriate option is highlighted This will cause the display to chan
8. Operating mode alarm code menu state 483mm Wide x 132mm High x 406mm Deep 19 rack x 2U Standard 19 rack mount THE UNIT MUST BE SUPPORTED ALONG ITS SIDES BY 19 RACK GUIDE RAILS OR FIXED BRACKETS 9kg with IRB L 7 75kg without IBR L 5 C to 50 C 0 C to 50 C 10 90 non condensing 220V 240V 50Hz 50W 110V 120V 60Hz 50W A protective earth is required 24 months from date of dispatch United Kingdom INTRAC 204 MANUAL ISSUE 1 1 Page 5 OPERATION INTRAC 204 3 OPERATING THE INTRAC 204 The INTRAC 204 may be operated directly from the front panel or from a remote control terminal FRONT PANEL CONTROL v VY TEM ALARM LMERGENCT STOP hd E 0 0 Advantech o o o Wireless Intrac Antenna Controller INTRAC 204 manual control keys These keys have two functions In manual control mode they are used to drive the antenna up down left or right In menu mode the left and right keys are used in conjunction with the Enter key to move the cursor through the menus The up and down keys are used to increment or decrement a numeric value which is used in some of the menus enter key Used in menu mode to select the menu or menu option which is currently next to the cursor and displayed in upper case or to accept a numeric value menu key Used to enter menu mode Emergency Stop Switch Removes all DC power to the motors system alarm indicator Illuminates when a primary alarm is raised
9. Period NORAD Edit Sie Clear NORAD her Howe Enter Day Enter LMO Enter Az Offset Enter LM1 Enter Day Enter Minute Enter Hour Enter LM2 NORAD Buffer Enter El Offset Enter Minute Enter one Enter Hour Enter Second Enter lonci Enter Minute Enter LONS No Change Program Track Rapid Model Reserve ET Enter Second WS IESS 412 Eyer Are esp ra a No Change Enter LATC1 Enter Star Az Enter LATS SS 7 SR E DES pas Enter Star E TI p te Le SDP8 SDP8 Vgl Basic Basic r f First level Clear Models This function is used to clear the INTRAC Model the IESS 412 data and or the NORAD data Stn Co ords Enter the station latitude longitude height and the antenna Az amp El offsets Date amp Time Enter the year month day hour minute and second Second level IESS 412 Enter the IESS 412 Ephemeris data NORAD Enter the NORAD Ephemeris data Star Track Enter the Star Track data This is a test facility Third level Program Track Rapid Model Sets the INTRAC to operate in Program Track mode using the IESS 412 data or one of the NORAD SGP SDP or Basic algorithms Generates an orbit model using the IESS 412 data or one of the NORAD SGP SDP or Basic algorithms This by Page 10 INTRAC 204 MANUAL ISSUE 1 1 Advantech WIRELESS 2010 INTRAC 204 Reserve Note AUX Beacon Frequency Remote New Model Soft Limits Fine Tune EXIT AUX 2 No Change Az Beamwidth El Beamwidth Time Adjust Beacon Limit O Advantech WI
10. causes the antenna elevation axis to be driven to the preliminary stow position This is the elevation angle below which no azimuth drive is allowed in any mode It is used to ensure that the antenna feed horn assembly cannot be damaged by antenna movement when the elevation angle is too low This section is not implemented in the INTRAC 204 This section is not implemented in the INTRAC 204 The facility is used to toggle the manual drive control between Az El and Pol only operates if motorised Pol is fitted This menu section is for future expansion INTRAC 204 MANUAL ISSUE 1 1 Advantech WIRELESS 2010 INTRAC 204 OPERATION Advantech WIRELESS 2010 INTRAC 204 MANUAL ISSUE 1 1 Page 13 INTRAC 204 4 ALARMS Primary Alarms Hardware Alarm Drive Fail Alarm Note Synchro Alarm Limit Interlock Secondary Alarms Advantech WIRELESS 2010 ALARMS The INTRAC 204 control software incorporates a number of continuous integrity checks and system monitoring functions If any of these fail at any time an alarm will be raised The most serious alarms are classified as primary alarms and normally cause the INTRAC 204 to enter Standby mode with the front panel System Alarm indicator illuminated and a alarm code displayed in the LCD Less serious faults generate a secondary alarm A secondary alarm condition can be detected via the Remote Control port but does not itself generate any front panel indicatio
11. display Signal Strength Elevation Angle dB arbitrary reference degrees XX XX dB El XX XX TRACKING Az XXX XX Operational mode Azimuth Angle or Alarm Code degrees In normal operation mode i e not in menu mode the display shows the four factors as in the above diagram In menu mode the options of the currently selected branch of the menu tree are displayed in one or two lines Page 6 INTRAC 204 MANUAL ISSUE 1 1 Advantech WIRELESS 2010 INTRAC 204 OPERATION In normal operation mode 1 e not in menu mode the display shows the four factors as in the above diagram In menu mode the options of the currently selected branch of the menu tree are displayed in one or two lines OPERATIONAL MENU The INTRAC 204 is operated via a menu system which is entered by pressing the Menu key and moved through with the Manual Control left amp right keys and the Enter key For 1 and 2 axis systems menu functions for non existant axes will either be not present or have no effect The structure of the menu system is shown below START OF MENU I A T T T 1 Mode Goto Aux Exit Aux 2 Stow Aux 3 Aux 4 M P More T T Peak Position Satellite Edit Satellite Models Toggles between Enter El Angle eater Pol amp Az El i Enter Az Angle Pie El Enter El Angle l Enter El Limit Enter Az Angle
12. material of the repair only for a period of 12 months from the date of return of the unit to the customer However where the remaining time of the standard warranty exceeds 12 months the work and material of the repair will be warranted for that remaining period Advantech AMT Limited reserves the right to charge for rectification of any faults caused as a result of attempts to repair equipment by third parties INTRAC 204 MANUAL ISSUE 1 1 Page 45
13. 7 Operational Menus meriiri a Medlin ola tend al elec 8 Description of Menu Functions eee eee eee 9 4 ALARMS A ee EEEE es cecededec A E P E 15 Primary Alarm ane ane ae de ae an dn er glia de a 15 secondary Alarms iii anda 15 Recovering from Alarms eee eee eee eee een nene 16 Alarm God s EE 16 5 TECHNICAL DESCRIPTION ns isssnnnennenmnenmensnenennnneenenennnnneenee 19 Th MOOS nent et nt te Mirti AT 19 Standby astu elo rl init iia 19 All EE 19 Manual sertene tire lotte rie tease 21 GOTOn g et dns EE En Re tel A les ere 21 SIC she te ne Run sr te 21 The Models Menthe trie te lite se 22 Using IESS 412 or NORAD Data uo eeeee eee eee een 23 The IESS 412 Data TE 23 NORAD Datta gases ccdeccesvencansec Ades pesiedctesbees gege K ege Ee 24 Rapid Model Generation oooocccccncccnnoccccnncccnonannnnoncnnnn cn nano cnn eee ete en aneta 25 LI de nn S 25 Reserve Modell EE 26 Gear Models ico dais 26 Antenna Motion Limits ooonocccccnnnincccononnnccccnnnnonacnn ono eee eee eee nenene nene 26 Software Limits su 26 Hardware Limits us 26 AXES E EE 27 Tracking Signal hat hide abc rar dede te a a 27 The Tracking Algorithm cee ceeceeeeeeeeee eee riddari eee eee eee eee een nenene 27 Advantech WIRELESS 2010 INTRAC 204 MANUAL ISSUE 1 1 Page v CONTENTS INTRAC 204 SUBJECT PAGE G INSTALLATION sue SEENEN EEN 29 IMtOQUCTION aie Se eee eel ee A dd 29 Connections general 29 Conections Block Diagram
14. Alarm is set if any of bits 5 to 12 are active iii Due to parity error run time error watchdog time out iv Beacon signal gt 25 dB on display Beacon signal Out of Lock Beacon signal lt 15 dB on display Beacon signal level not varying during step cycles Primary Alarms which illuminate the System Alarm Indicator The displayed octal code is the sum of all the detected alarm codes so the exact code displayed may well not be contained as a direct entry in the above table To see what faults have been detected it may first be necessary to break the displayed code into its individual components Each component will have only one non zero digit which will be 1 2 or 4 and the sum of all the components will be equal to the displayed code Examples of alarm codes are shown below Example 1 Displayed code 00M0000703 M Manual mode breaks into 1st code 00 000040 Drive Inhibit has been operated 2nd code 00 000020 Stop bit set Advantech WIRELESS 2010 INTRAC 204 MANUAL ISSUE 1 1 Page 17 ALARMS Example 2 Page 18 3rd code 00 000010 Displayed code breaks into 1st code 00 100000 2nd code 00 040000 3rd code 00 000100 4th code 00 000020 5th code 00 000004 6th code 00 000002 INTRAC 204 Servo alarm has been raised 0051401263 S Standby mode AZ El Drive has failed Az El Synchro Alarm raised Interlock circuit opened Stop bit set Hardware Alarm Beacon signal fault
15. CB the most likely cause is a faulty IBR L Diagnostic data can be obtained from the remote port of the INTRAC 204 This data if collected and sent to Advantech AMT Limited for analysis can be helpful in fault location It can indicate whether the unit should be sent back to Advantech AMT for repair or if the cause of the problem is external to the INTRAC 204 Diagnostic data is obtained from the Remote Port after the INTRAC 204 has been set into diagnostics mode Diagnostic mode is entered via Menu Aux Remote Enb where the displayed options are local remote local diags remote diags Selecting local diags causes diagnostic data to be available at the remote port whilst giving control of the INTRAC to the front panel Selecting remote diags causes diagnostic data to be available at the remote port whilst giving control of the INTRAC to the remote control terminal However in this mode only remote control commands are accepted by the INTRAC no acknowledgement of the commands is sent to the remote terminal and no status requests are accepted This mode INTRAC 204 MANUAL ISSUE 1 1 Advantech WIRELESS 2010 INTRAC 204 III FAULT FINDING typical data cannot be used with the Advantech AMT RCM remote control and monitoring program as this program needs command and status request acknowledgement To collect the diagnostic data a PC running a terminal package is required The terminal should be set for a baud rate of 9600
16. F THIS SECTION OF THIS MANUAL ANY THIRD PARTY WORK INSIDE THE INTRAC 204 DURING THE WARRANTY PERIOD WILL INVALIDATE THE WARRANTY Because the INTRAC 204 forms part of a system parts of which respond to signals from the INTRAC 204 and parts of which send signals to the INTRAC 204 deciding whether a fault lies with the INTRAC 204 or the external equipment can be difficult Page 40 INTRAC 204 MANUAL ISSUE 1 1 Advantech WIRELESS 2010 INTRAC 204 ELL FINDING FAULT SYMPTOMS INTRAC doesn t appear to power up Pointing Angles Incorrect angles constantly varying wrong angle displayed angle doesn t change when antenna is moved Advantech WIRELESS 2010 The simplest method to prove if the fault lies with the INTRAC 204 or some other equipment is to replace the INTRAC with a spare unit However care must be taken in such a case that any fault with the external equipment does not cause damage to the replacement INTRAC Also ensure that the replacement unit is correctly set for the installation This fault finding guide goes no further than trying to identify which of the major assemblies such as power supply IBR L or complete printed circuit assemblies may be faulty The INTRAC 204 consists of five major assemblies e Board Stack incorporating interface card processor card and drive control card e DC drive module e Low voltage power supplies 41V 24V 5V e LCD Display panel e IBRL Beacon receiver Che
17. IBR L Diagnostic data Page 42 local diags remote diags INTRAC 204 Select Manual Mode and drive the antenna in the appropriate direction and either check that the beacon level changes or actually look at the antenna If the antenna is moving and the displayed angle is not changing the problem is probably the mechanical coupling between the resolver and the antenna When the INTRAC attempts to drive the antenna a DC voltage is placed between the screw terminals marked and This voltage is nominally 36Volts but depending on the internal settings of the unit may be pulse width modulated to give an apparently lower voltage If the drive voltage does not appear the most likely cause is that there is an alarm condition or a limits interlock condition that does not allow drive The next most likely cause is that the 10A motor drive fuse has blown If these are all OK then it is possible that the Drive module has failed or the drive PSU 41VDC has failed There is no way of knowing from the INTRAC whether the loss or reduction of tracking signal is due to the satellite Receive RF chain or the IBR L itself Thus when the displayed beacon level falls below normal the user should check with a spectrum analyser on a narrow sweep range so that the actual beacon frequency can be seen and measured before assuming an IBR L problem Although the loss of or reduction in displayed beacon level could be caused by a fault on the Interface P
18. INTRACTM 204 INTELLIGENT TRACKING ANTENNA CONTROL UNIT FOR 1 2 or 3 AXES INSTALLATION amp USER MANUAL ISSUE 1 1 Wireless Advantech AMT Limited 39 Edison Road St Ives Cambridgeshire PE27 3LF England a UK General Enquiries 01480 357600 a International General Enquiries 44 1480 357600 Fax UK 01480 357601 International 44 1480 357601 e mail support europe advantechwireless com Website http www advantechwireless com The copyright of this document is vested in Advantech AMT Limited and the document is issued in confidence for the purpose only for which it is supplied It must not be reproduced in whole or in part or used for tendering or manufacturing purposes or disclosed to a third party except with the written consent of Advantech AMT Limited Advantech WIRELESS 2010 INTRAC 204 PREFACE MANUAL SECTIONS Introducing the INTRAC 204 Safety Specification Operation Alarms Technical Description Installation Fault Finding Warranty and Repair Information Appendices Advantech WIRELESS 2010 INTRAC 204 MANUAL ISSUE 1 1 NTENT This eguipment manual provides user operational and installation information on the Advantech AMT Limited INTRAC 204 Satellite Tracking Antenna Controller with integral 36V DC drive circuits and optional integral L band beacon receiver This manual covers 1 2 or 3 axis systems Some functions are not available in 1 or 2 axis systems and this is noted in
19. L band RF connection to the IBRL is also normally required THE INTRAC 204 MUST NOT BE MOUNTED ONLY BY THE FRONT PANEL LUGS IT MUST BE SUPPORTED ALONG ITS SIDES Before making connections to the INTRAC Controller ensure that it is isolated from the power source Connect the cables between the drive motors and the INTRAC The earth connection on the INTRAC motor drive terminals should be used only for connecting the cable screen and not for a motor safety earth Normally the cable screen is connected at the INTRAC end only The Emergency Stop input terminals are for connection of a normally closed external emergency stop chain Any number of emergency stop and interlock switches N C contacts may be connected in series to this input Opening any of the switches will remove the DC power to the motors Note that the external emergency stop circuit is not internally latched and it is recommended that mechanical latching emergency stop switches are used If no external emergency stop switches are fitted then the input terminals should be shorted with a link INTRAC 204 MANUAL ISSUE 1 1 Page 29 INSTALLATION INTRAC 204 Connections Block Diagram ALARMS BEACON LIMITS LIMIT GE SWITCHES S Pol amp MOTORS OPTIONAL REMOTE TERMINAL All connections to the INTRAC 204 are made via its rear panel The following connectors are available Remote Port I O 9 way D type socket Resolver Ps x 2 or 3 9 way D type sock
20. LS EXIST WITHIN THIS EQUIPMENT THE COVERS SHOULD NOT BE REMOVED EXCEPT BY QUALIFIED PERSONNEL SWITCH OFF POWER AND ISOLATE SUPPLY BEFORE REMOVING COVERS IF IT IS NECESSARY TO OPERATE THE EQUIPMENT WITH THE COVERS REMOVED FOR SERVICING PURPOSES ALL NECESSARY PRECAUTIONS SHOULD BE TAKEN TO PROTECT AGAINST ELECTRIC SHOCKS ELECTRICAL Fusing Earthing Battery Disposal Emergency Stop Advantech WIRELESS 2010 The unit is protected by a fuse in the live phase power supply line This fuse is located in the AC power inlet module on the rear panel Care should be taken to ensure that the power cable is correctly connected to the power source such that the live phase connection of the INTRAC is connected to the live phase terminal of the supply When replacing the fuse be sure to do so with one of the correct value and type The DC motor circuit is protected by an additional 10A fuse in the 36V supply line This fuse is located in a separate fuse holder on the rear panel It is important that the electrical supply has a good and proper earth which is connected through to the INTRAC 204 via the power cable The processor board contains a Nickel Cadmium NiCd or Lithium battery These elements are toxic The battery should be disposed of according to national requirements DO NOT PLACE IN NORMAL GARBAGE OR IN A FIRE There is a mechanically latching Emergency stop switch on the INTRAC front panel Pressing this switch wil
21. NTRAC is always on track when a measurement cycle is performed INTRAC never uses the measurement cycle for the purpose of directly bringing the beam on track INTRAC simply performs one measurement cycle in each axis every 10 minutes in order to up date the parameters used in the orbital model and for the rest of the time keeps the beam correctly pointed INTRAC 204 MANUAL ISSUE 1 1 Advantech WIRELESS 2010 INTRAC 204 INSTALLATION 6 INSTALLATION Introduction The INTRAC 204 unit incorporates the antenna motor drive circuits and normally an IBRL integrated L band beacon receiver The system also requires the antenna position resolvers to be connected to the INTRAC along with the limit switches from the antenna before the complete system can work correctly WARNING POSSIBLE LETHAL POTENTIALS EXIST WITHIN THIS EQUIPMENT THE COVERS SHOULD NOT BE REMOVED EXCEPT BY QUALIFIED PERSONNEL SWITCH OFF POWER AND ISOLATE SUPPLY BEFORE REMOVING COVERS IF IT IS NECESSARY TO OPERATE THE EQUIPMENT WITH THE COVERS REMOVED FOR SERVICING PURPOSES ALL NECESSARY PRECAUTIONS SHOULD BE TAKEN TO PROTECT AGAINST ELECTRIC SHOCKS Note Connections general Emergency Stop Input Advantech WIRELESS 2010 Installing the INTRAC 204 sub system comprises mounting the Controller in a 19 rack connecting the controller to the drive motors fitting positional resolvers to the antenna axes and connecting those resolvers to the controller An
22. NTRAC will enter Tracking mode or if there is no tracking signal being received it will enter Predicting mode The INTRAC 204 can continue to predict the location of a satellite for up to 72 hours continuous loss of tracking signal If Auto is selected with no valid model present the INTRAC will enter Learning mode for a satellite at the present pointing If no tracking signal is received at this point INTRAC will enter Standby Mode If the antenna is pointing at a satellite from which a tracking signal is being received and no valid model exists Learning Mode is entered when Auto is selected The INTRAC performs cross scans whilst monitoring the change in received beacon signal strength These small INTRAC 204 MANUAL ISSUE 1 1 Page 19 TECHNICAL DESCRIPTION INTRAC 204 movements enable the INTRAC to estimate the satellites position and this estimate is used to build the model When carrying out a cross scan the antenna describes a small cross normally 5 of the antenna s 3dB beamwidth in the sky After 24hrs of learning the INTRAC has built the full orbital model However during the building process the INTRAC maintains a simple orbit model for the satellite which allows INTRAC to track with very nearly the same accuracy as its long term accuracy If the tracking signal is lost during Learning Mode the INTRAC will enter Predicting Mode The time for which INTRAC will be able to predict in this case will depend on the len
23. RAC 204 MANUAL ISSUE 1 1 Page 39 FAULT FINDING INTRAC 204 7 FAULT FINDING WARNING POSSIBLE LETHAL POTENTIALS EXIST WITHIN THIS EQUIPMENT THE COVERS SHOULD NOT BE REMOVED EXCEPT BY QUALIFIED PERSONNEL SWITCH OFF POWER AND ISOLATE SUPPLY BEFORE REMOVING COVERS IF IT IS NECESSARY TO OPERATE THE EQUIPMENT WITH THE COVERS REMOVED FOR SERVICING PURPOSES ALL NECESSARY PRECAUTIONS SHOULD BE TAKEN TO PROTECT AGAINST ELECTRIC SHOCKS Introduction Advantech AMT Limited recommend that users return faulty INTRAC 204 units to Advantech AMT for repair Advantech AMT have a specially equipped repair facility and are able to repair and return a unit rapidly if required However if the problem is of an intermittent nature it may be beneficial to allow us to soak test the unit for a longer period Repairs carried out by Advantech AMT are warranted for 90 days The information given below is intended to help users identify the location of faults Note that we do not recommend that any repairs are carried out by the user without first discussing the intended repair with Advantech AMT customer service personnel Note particularly that ADVANTECH AMT LIMITED ACCEPT NO RESPONSIBILITY OR LIABILITY FOR ANY HARM CAUSED TO ANY THIRD PARTY PERSONNEL FROM WORKING INSIDE THE INTRAC 204 ADVANTECH AMT LIMITED ACCEPT NO RESPONSIBILITY OR LIABILITY FOR ANY DAMAGE CAUSED TO THE INTRAC 204 BY ANY THIRD PARTY PERSONNEL AS A DIRECT OR INDIRECT RESULT O
24. RELESS 2010 OPERATION passes the need for the INTRAC to learn the orbit over a 24hr period The generated model is used and updated in the same manner as an INTRAC learnt model would be Allows the selection of IESS 412 or NORAD Ephemeris data to be used as the fall back for Program Tracking in the event that the tracking signal is lost for a greater period than the validity of the tracking model Valid IESS 412 or NORAD data must be resident within the INTRAC for this function to operate See Using IESS 412 or NORAD Data on page 29 This sub menu contains various set up functions and remote local control selection Enter the L band beacon frequency Select Local INTRAC front panel or Remote control of the INTRAC 204 Alternatively select Local Diags local control but with diagnostic data available at the remote port of the INTRAC or Remote Diags allows remote control but commands are not acknowledged and Status Requests are ignored Diagnostic data is available at the INTRAC remote port Clears the existing orbit model and starts the INTRAC learning a model for the satellite at the current pointing Enter the antenna movement Software Limit values Set the resolver sense to True or Inverse for the Az 4 El axes Select No Change to enter the Fine Tune Offset menu Change the displayed angles if necessary to equal the known true pointing angles Select Menu to exit returns to menu entry level Select
25. The INTRAC 204 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 satellite s position and this estimate is used to build the model The system always tracks the satellite from the model The small movements of antenna pointing are 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 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 a 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 An INTRAC system provides this exceptional tracking performance for satellites with any inclination and at any look angle entirely automatically The INTRAC 204 incorporate
26. an be supplied in a version that accepts potentiometer feedback for the polarisation axis In this case the unit will be supplied with a dongle that plugs into the standard polarisation resolver socket on the INTRAC The other end of the dongle is fitted with a 15way D type socket The connections are given below Polarisation Potentiometer Signal Name 10 way connector The potentiometer should be connected so that the end corresponding to the high 90deg polarisation angle is connected to pin1 and the other end of the potentiometer connected to pin 6 The wiper should be connected to pin 2 The potentiometer dongle is fitted with two preset resistors P1 and P2 Initially set the polarisation position to 90 degrees The potentiometer is supplied with a sine wave ac signal Adjust P1 so that the signal on the wiper is close to 2V rms 5 6v pk pk Then connect wiper to pin 2 of connector The setup is performed by connecting a terminal emulator to the remote port of the INTRAC set to 9600 N 8 1 Set the INTRAC to display polarisation angle Tyoe LA lt CR gt must be in upper case and adjust P2 until the displayed angle is close to 50 degrees Type LB lt CR gt wait for a sign to be displayed and then move the feed physically to the 0 deg position Type LC lt CR gt and wait for the sign to be displayed Finally type LD lt CR gt and wait for the sign to be displayed The display should then change to show the current pol a
27. any further in the limited direction but can be driven in the opposite direction Resolver units are fitted to the driven axes of the antenna These units supply positional information to the INTRAC s resolver interface circuits Fine Tune offsets may be set to equate the resolver outputs to the actual antenna pointing angle An L band Integrated Beacon Receiver IBR L is an option with the INTRAC 204 When fitted this receiver is tuned to the L band frequency entered under the Aux menu or in the Satlnfo Dat file by the INTRAC If the beacon frequency of the satellite to be tracked is not in the L band a Block Down Converter will be required to convert the signal to L band If an IBR L is not fitted the INTRAC requires a dc voltage level which is proportional to the received signal strength from the satellite Setting the calibration for the external tracking signal is described in section 6 Installation on page During initial acquisition the INTRAC algorithm tracks the satellite using a third order for each axis unbiased tracking filter This algorithm dynamically adjusts the period between the step cycles to match the perceived orbit inclination and received beacon signal level fluctuations and noise level During this initial period the tracking accuracy is only very slightly lower than the full long term INTRAC tracking accuracy The most significant difference during the learning period first 24hrs is not the accuracy of trac
28. at time of order The indicated pointing angles can be electrically offset in all axes to an accuracy of 0 01 to compensate for angular mounting offset in the position encoders Inputs for antenna movement limit switches in each direction for all three axes plus an interlock emergency stop switch These limit switches should be closed when the antenna is within limits and safe For 1 and 2 axis systems the limits for the unused axes are internally shorted and do not need any external connections Contacts should be rated for 30V at 100mA Time is maintained by a battery backed clock Operating parameters data and orbital models are held in EEPROM INTRAC 204 MANUAL ISSUE 1 1 Advantech WIRELESS 2010 INTRAC 204 Inputs Outputs Controls Indicators Displays Dimensions Mounting Weight Operating Temperature Storage Temperature Relative Humidity Power Warranty Country of Origin Advantech WIRELESS 2010 SPECIFICATION Limit switch inputs External Emergency Stop switch input Antenna Motor drive 24v or 36v dc up to 4A continuous 8A intermittent Power switch rear panel Manual Control keys front panel Enter key front panel Menu key front panel Emergency Stop switch front panel System Alarm LED red front panel Two line LED showing Azimuth angle Elevation angle Pol angle is displayed when required Relative signal strength
29. ck the INTRAC fuse in the mains input moulding cable and power source The resolvers consist of three coils two of which move with respect to the third A continuous signal is sent from the INTRAC to the fixed coil and is induced into the other two coils The amount of induction in each coil is dependant on the respective position of the coils The signal sent from the INTRAC is the same for all resolvers Constantly changing angles are caused by noise on the two return signal lines a faulty resolver or faulty connections to the resolver If only one angle i e Az El or Pol appears to be changing when in Standby then the fault is likely to be with the connections to that resolver or the resolver itself If all the angles are changing the fault is likely to be on the interface card If the wrong angle is displayed but the angle changes the correct relative amount in response to antenna movement then either the Fine Tune offsets are wrong or the resolver coupling has slipped If the displayed angle does not change or appears to change by the wrong amount then there it is probably either a wiring fault or the resolver is faulty If a similar fault occurs on all axes it is probably the main PCB If the displayed angle doesn t change when the antenna is being driven first ensure that the antenna is actually moving in the relevant axis INTRAC 204 MANUAL ISSUE 1 1 Page 41 FAULT FINDING No Antenna Drive Tracking Signal
30. claring that the equipment is returned for repair under warranty Subject to the unit being eligible for warranty repair Advantech AMT Limited will effect the repair and return the unit by pre paid shipment to the originating location Subject to the shipment charges being the same as or less than that to the original location the unit may be shipped to some other location as the customer may specify Under no circumstances shall Advantech AMT Limited be liable for any consequential or incidental costs or damage This warranty does not apply to any equipment which has been damaged through abuse accident such as lightning strike negligence or failure to comply with Advantech AMT instructions for storage installation and use as contained in the equipment manual s Except as specifically provided above Advantech AMT Limited makes no warranties expressed or implied as to the merchantability of the equipment or its fitness for a particular purpose Advantech AMT Limited will provide a repair service for all equipment manufactured by Advantech AMT Limited for a reasonable period Prior to the return of any equipment for repair whether under warranty or by payment Advantech AMT Limited must be contacted to obtain an RMA number and form and also to discuss the problem and confirm that the equipment needs to be returned During the discussion the parties should also agree the most effective solution to the problem and discuss the meth
31. ctly to the drive motors A screened cable is recommended with the screen connected only at the INTRAC end The screw terminal strips are marked and Gnd Gnd should be used for the cable screen only If the motor rotates in the wrong direction then swap the wires to the and terminals The Remote Port is configured for RS232 communication INTRAC 204 Remote Port Remote Control PC Signal Name 9 way D type Signal Type PC Connector poo pone ll ME ll RCMOUT input 2 Beacon Signal Connector Page 32 Note RCMIN The INTRAC 204 is wired as a DCE unit suitable for direct 1 to 1 connection to the 9 way serial port of a PC AT TXD and RXD data flow directions are standard relative to the DTE Handshake lines are pulled to the ON condition The INTRAC 204 is normally fitted with an IBR L beacon receiver The beacon signal at L band should be connected to the N type RF connector on the INTRAC rear panel It is possible to configure the INTRAC so that 18Vdc up to 300mA is connected to the inner conductor of the N type in order to power the Block Down Converter Units are normally delivered with the 18v disabled The method of enabling and disabling this supply is described below INTRAC 204 MANUAL ISSUE 1 1 Advantech WIRELESS 2010 INTRAC 204 INSTALLATION Resolvers Size 11 resolvers R11W or RE 01 resolvers may be used with the INTRAC 204 for all axes Note that the polarisation on
32. d An input level of 45dBm corresponds to a displayed level of 25dB In some installations the LNA LNB power is carried on the L band signal cable and special arrangements have to be made to ensure continuity for the dc power when attenuation is added in this cable The INTRAC can be configured to provide a nominal 18V supply up to 300ma at the RF input to power the LNB or BDC This 18V supply is enabled by changing the connection to a ribbon cable inside the unit on the Drive Control top card INTRAC 204 MANUAL ISSUE 1 1 Advantech WIRELESS 2010 INTRAC 204 INSTALLATION J12 The ribbon cable is connected to the connector J12 identified by an arrow in the picture above The ribbon cable has a connector at the end and one a few centimetres in from the end If the 18v is not required then connect the ribbon to the card using the end connector If 18v is required then connect the ribbon to the card using the other connector Advantech WIRELESS 2010 INTRAC 204 MANUAL ISSUE 1 1 Page 37 INSTALLATION OPERATIONAL CHECKS Manual Operation Emergency Stop Check Auto Operation Page 38 Note Note INTRAC 204 This test checks the operation of the motor drives and limit switches Ensure that all limit and interlock switches are in the normal operating condition Switch on the INTRAC If the System Alarm indicator illuminates press the Standby key If it remains illuminated determine what is causing
33. de the period of prediction is greatly reduced Manual mode allows the antenna to be driven by the front panel Manual Control keys Pressing one of the Manual Control keys will cause the antenna to move in the appropriate direction for the time that the key remains pressed Drive is not latched and will stop as soon as the key is released Drive may be latched by pressing the Enter key whilst the direction key is also pressed Pressing Enter again will unlatch the drive The Goto menu is used to drive the antenna to specific Az amp El co ordinates and to peak the antenna on a satellite within a specified area of sky It is also used to input and clear NORAD amp IESS 412 data select the source of the tracking model and to clear the INTRAC model This function searches a defined area of sky for the strongest beacon signal and when the search is complete the antenna is returned to the angle of strongest signal When Peak is selected it is necessary to enter the nominal Az amp El angles for the search plus the range of the search in Az amp El Limits The dwell time is also required Dwell time is the time the beacon receiver takes to lock onto the signal It is the time for which the antenna remains static to allow the beacon receiver to lock to the signal This function simply drives the antenna to the entered Az amp El co ordinates Also Pol angle if motorised pol is fitted If any of the entered angles are outside of the Sof
34. e are not used as reference points Advantech WIRELESS 2010 INTRAC 204 MANUAL ISSUE 1 1 Page 33 INSTALLATION Page 34 Setting up Note INTRAC 204 Put the INTRAC into Manual Mode Drive the motors and confirm that the antenna drives in the correct direction The Up manual button should drive the elevation up and the Right manual button should drive the azimuth in a clockwise direction viewed from above If the directions are wrong then swap the motor wires to the and terminals Setting the direction sense can be done initially by considering which direction of rotation of the resolver shaft relative to he resolver body corresponds to an increasing antenna angle Up and Right CW but should always be checked Alternatively it can be set empirically The standard wiring should give a situation where rotating the resolver shaft CCW looking at the shaft end should give an increasing displayed angle when the resolver senses are set to True Under the Aux Fine Tune Sense menu the resolver sense can be set to true or inv If the antenna moving Up or Right would rotate the corresponding resolver shaft in a CCW direction then set the corresponding sense to True If the antenna moving Up or Right would rotate the corresponding resolver shaft in a CW direction then set the corresponding sense to Inv Finally check that these senses are correct by driving the antenna and ensuring that the displayed angle chan
35. elected by the INTRAC depending on the circumstances They are not selectable by the user They are Tracking Learning and Predicting This is the normal operating situation the INTRAC has passed through the learning period built the orbit model and is tracking the satellite from that model This is a sub mode used for the first 24 hours of tracking a new satellite During this time the INTRAC is obtaining data to build the orbit model Tracking accuracy during this period is very close to full model tracking accuracy The difference between learning and tracking is not the accuracy but the length of time that the satellite can be tracked after the beacon signal has been lost see predicting This is the mode the INTRAC enters when it does not have a useful beacon signal A useful signal is one that is neither over or under range varies as expected during antenna movements and has a beacon receiver in lock signal In predicting mode the INTRAC continues to track the satellite by predicting its location from the orbit model However as the model cannot be updated prediction duration is limited Once the full model has been built predicting can continue for 72 hours without a tracking INTRAC 204 MANUAL ISSUE 1 1 Advantech WIRELESS 2010 INTRAC 204 Manual GOTO Peak Note Position Satellite Edit Satellite Models Advantech WIRELESS 2010 OPERATION signal If the signal is lost during learning mo
36. eriod of Validity of the ephemeris The final two characters 165 amp 166 are the check sum There are ten blocks of orbital element parameters contained in the NORAD ephemeris character string Charas Data Description 19 32 EPOCH format YYDDD DDDDDDDD 34 43 XNDT20 1strate of change rev day day 45 52 XNDD60 2nd rate of change rev day day day 54 61 BSTAR damping factor er 1 INTRAC 204 MANUAL ISSUE 1 1 Advantech WIRELESS 2010 INTRAC 204 Rapid Model Generation Program Track Advantech WIRELESS 2010 TECHNICAL DESCRIPTION 89 96 XINCL inclination deg 98 105 XNODEO ascending node deg 107 113 EO eccentricity 115 122 OMEGAO argument of perigee deg 124 131 XMO mean anomaly deg 133 143 XNO mean motion rev day The INTRAC 204 can use the IESS 412 or NORAD data to build the satellite s orbit model instead of having to learn the orbit over a 24hr period The IESS 412 data is simply selected in the Goto Models No Change No Change Rapid Model menu The orbit model is calculated and the INTRAC enters Tracking Mode For the NORAD data there are five choices of NORAD algorithm These are SGP SGP4 SGP8 SDP4 amp SDP8 and each gives a slightly different Az El pointing for the same NORAD data SGP the original NORAD algorithm SGP4 applies to Near Earth Orbits SGP8 applies to Near Earth Orbits SDP4 applies to Deep Space Orbits SDP8 applies to Dee
37. ets Motor Drive Outputs Screw Terminal Strips Limits Status I O 15 way D type socket Beacon Signal I P N type L band socket Page 30 INTRAC 204 MANUAL ISSUE 1 1 Advantech WIRELESS 2010 INTRAC 204 INSTALLATION Rear Panel Layout F ELECTRIC SHOCK HAZARD DO NOT REMOVE COVER INTERNAL ACCESS BY AUTHORIZED SERVICE PERSONNEL ONLY P POWER 400W MAX ps 115230Vac 4 012 0A 50160 Mz FUSE SAT ko UO11701 CONNECTOR PIN ALLOCATIONS Limits Note Limit and interlock switches should have normally closed contacts Opening any limit switch will inhibit drive in that direction Opening any interlock switch will inhibit drive in any direction iri 3 AzRightLimit PolClkLimit 7 Ground Ground pta round 9 Gom 10 11 12 13 14 5 The connector gender in the table is that on the INTRAC The connecting cable should thus be terminated in the mating gender O Advantech WIRELESS 2010 INTRAC 204 MANUAL ISSUE 1 1 Page 31 INSTALLATION Motor Drive Remote Port Connector INTRAC 204 NOTE On singe or dual axis production units the limit switch inputs associated with unused axes are shorted to ground internally and do not need to be wired externally On the original prototype unit these limit inputs were not shorted internally and must be individually shorted to ground at the connector Motor drive lines from the INTRAC 204 rear panel screw terminal strips connect dire
38. failure at the Motor Drive Cabinet which does not affect the INTRAC itself INTRAC 204 MANUAL ISSUE 1 1 Page 21 TECHNICAL DESCRIPTION Note THE MODELS MENU INTRAC 204 2 if the Motor Drive Cabinet is switched into local control 3 if an interlock switch is operated Conditions 2 8 3 are detected by the INTRAC by the Interlock alarm becoming active Condition 1 is detected by both direction limit switches of used main axes becoming active This occurs because relays are normally operated and drop out with no power The Primary alarm is activated and a Z is displayed in the alarm code When the condition causing Sleep mode ceases the INTRAC will attempt to return to the mode it was in prior to Sleep mode If this was Tracking the INTRAC will re position the antenna according to the model and continue tracking If the INTRAC is in Remote Mode when Sleep is entered the remote will appear to be in Standby Mode with the Interlock alarm and all four limit switches active The Models menu relates primarily to using IESS 412 and NORAD ephemeris data It is also where the date and time are entered and where the geographical co ordinates of the antenna are entered these are required when using the ephemeris data Note that functions relating to IESS 412 and NORADare not applicable to single axis systems Got No Change Clear Models Stn Co ords Date amp Time No Change IESS 412 Enter Year Enter M
39. ge to the options of the selected function e g highlight MODE and press Enter _STANDBY auto manual Pressing Enter now will put the INTRAC 204 into Standby O Advantech WIRELESS 2010 INTRAC 204 MANUAL ISSUE 1 1 Page 7 OPERATION INTRAC 204 Some menu functions require numerical data e g for angle values To edit numeric values position the cursor on the digit to be changed with the left or right manual key and increase or decease the value with the up or down key Pressing the menu key again at any time will return to the top level of the menu system where the exit option exists DESCRIPTION OF MENU FUNCTIONS MODE Standby Auto Tracking Learning Predicting Page 8 The menu functions will be described working from left to right in the diagram above and dropping down to each sub level as it is reached The mode sub menu allows the INTRAC 204 to be put into Standby Auto or Manual mode Standby mode is ano movement mode The antenna is not driven but its position Az El amp Pol and the beacon signal level are monitored and displayed The external inputs are monitored and any fault detected will cause the appropriate alarm s to be raised As well as being selected from the menu Standby mode is automatically entered when a primary alarm is raised or at the end of a front panel generated goto command Auto is the mode for normal tracking operation There are three sub modes to Auto which are s
40. ges correctly Alternatively simply drive each axis and note the direction of change of the displayed angle If this is incorrect then toggle the sense between True and Inv until the displayed direction of change is correct Perform this operation for all driven axes Zero the Fine Tune Offsets Ensure that the antenna is away from the hardware limit switches Determine the actual pointing angles of the antenna The Elevation angle should be between 0 and 90 The Azimuth angle should be between 90 and 270 for the Northern Hemisphere The Polarisation angle should be between 90 and 90 Loosen the couplings between the resolver units and their respective antenna shafts Rotate each resolver shaft slowly until the displayed Az El and Pol angles are as near as possible to the actual angles of the antenna If a resolver angle is or becomes outside the software limits an alarm will be raised The software limits may be set wider INTRAC 204 MANUAL ISSUE 1 1 Advantech WIRELESS 2010 INTRAC 204 INSTALLATION Polarisation Potentiometer 9 Way D type Socket Polarisation Setting up Potentiometer input Advantech WIRELESS 2010 When the displayed angles are as near as possible at least within 10 to the actual angles tighten the resolver couplings ensuring that the angles remain as set Use the Fine Tune Offsets facility to change the displayed angles to the actual antenna angles The INTRAC 204 c
41. gth of the learning period Note The learning period can be by passed by using Intelsat IESS 412 or NORAD data to establish the initial INTRAC model so that the full prediction ability is available from the start Once the model is complete the INTRAC enters Tracking Mode The model is used to point the antenna and because of the high accuracy of the model the tracking is within 0 05dB RMS of peak signal tracking Tracking In Tracking Mode the INTRAC continuously updates the model by making small perturbations of the antenna and incorporating the resultant data into the model During periods when the satellite s orbit is changing because of station keeping manoeuvres the INTRAC may increase the frequency of the perturbations The system always tracks the satellite from the model The small movements of antenna pointing are used to maintain and update the model If the beacon receiver stops providing a useful signal the INTRAC will enter Predicting sub mode Predicting In this mode the INTRAC will continue to point the antenna according to the model but will not update the model Once Tracking Mode has been achieved predicting can continue for 72hrs If the beacon receiver returns to providing a useful signal within this period the INTRAC returns to updating the model If after 72hrs the beacon is still not producing a useful signal the model is deemed to have expired If this occurs the INTRAC can fall back on the
42. he centre The search area will be the centre angles the entred limits A dwell time for the beacon receiver to lock on the signal is also entered The INTRAC will search the area of sky for the strongest beacon signal on the beacon receiver frequency At the end of the search pattern the antenna will be returned to the pointing angles of the strongest signal and the INTRAC will enter Standby Location information Az angle and El angle plus Pol angle and IBR L frequency where appropriate can be stored for up to 40 satellites This information can then be called up and the antenna driven to the pointing angles and IBR L tuned to the beacon frequency From this function the number under which the required satellite s data has been stored 1 to 40 is entered When the Enter key is pressed the antenna drives to the angles and the IBR L is tuned The data relating to the satellites to be stored is enter under the Edit Satellite function The store number between 1 and 40 is entered followed by the Az El and where appropriate Pol and IBR L frequency Sleep Mode is the mode the INTRAC enters when it cannot drive the antenna due to some disabling occurrence external to the INTRAC such as loss of power at the motor controller INTRAC continues to monitor the occurrence and when it has cleared antenna drive control continues Sleep mode is entered under three conditions 1 if the antenna is unable to be driven due to a power
43. he same manner as a learnt INTRAC model 2 The INTRAC can be commanded to Program Track using positions calculated from the ephemeris data set The IESS 412 and NORAD data sets can be entered either manually from the INTRAC front panel or from a PC A stand alone program is available for loading the data file from a PC The IESS 412 data set comprises 21 fields of data IESS Epoch Year IESS Epoch Month IESS Epoch Day IESS Epoch Hour IESS Epoch Minute IESS Epoch Second IESS Minutes Interval IESS Days Validity IESS Sat LMO IESS Sat LM1 IESS Sat LM2 IESS Sat LONC IESS Sat LONC1 IESS Sat LONS IESS Sat LONS1 IESS Sat LATC INTRAC 204 MANUAL ISSUE 1 1 range range range range range range range range range range range range range range range range 80 to 99 20th century 00 to 79 21st century 1 to 12 1to 31 Oto 32 Oto 59 0 to 59 0 to 59 0 to 28 O to 360 deg 9 99 to 9 99 deg day 9 99 to 9 99 deg deg day 9 99 to 9 99 deg 9 99 to 9 99 deg day 9 99 to 9 99 deg 9 99 to 9 99 deg day 9 99 to 9 99 deg Page 23 TECHNICAL DESCRIPTION NORAD data Page 24 Note Note INTRAC 204 IESS Sat LATC1 range 9 99 to 9 99 deg day IESS Sat LATS range 9 99 to 9 99 deg IESS Sat LATS1 range 9 99 to 9 99 deg day IESS Sat LONG170 range 0 to 360 deg IESS Sat LAT170 range 9 99 to 9 99 deg day Also required to be set are the Station Co ordinates and IESS A
44. ing Exit drops out of the menu structure Aux 2 contains more set up functions By passes this menu and exits the menu structure Enter the antenna Azimuth 3dB beamwidth Enter the antenna Elevation 3dB beamwidth Enter a correction value for the clock in secs per day This function only applies when an external tracking receiver is used i e it does nothing when an IBR L is fitted INTRAC 204 MANUAL ISSUE 1 1 Page 11 OPERATION STOW Stow Angles Note Stow Unstow Elwood Angle AUX 3 AUX 4 M P MORE Page 12 INTRAC 204 The beacon level threshold value sets the level at which the INTRAC deems the external receiver to be out of lock The value is also used during a search to end the dwell period once the signal level rises above it This sub menu is from where the antenna stow angles are set and from where the antenna is stowed or unstowed Enter the Final and Preliminary Az El and Pol where fitted Stow angles The final Az stow angle is not used Drives the antenna to the stow position The Pol axis is driven first to its stow position The elevation axis is then driven to its preliminary stow position followed by the azimuth to its preliminary position When the antenna is at the preliminary stow position for both axes it is driven to the elevation final stow position The final azimuth position is not used i e the Az remains at the preliminary position This command
45. king but the time for which the system can predict in the event of loss of the beacon signal The learning period can be by passed by using Intelsat IESS 412 or NORAD data to establish the initial INTRAC model so that the full prediction ability is available from the start This model is then modified and optimised by the INTRAC algorithm in the same manner as it would continuously update a model it had learnt The key to deriving a reliable and accurate orbital model is the ability to derive accurate estimates of the many parameters involved in the model Much specialised noise processing expertise and experience has been applied in the design of the INTRAC algorithm to ensure that INTRAC can build an accurate model and can maintain it even when the beacon signal is subject to severe fluctuations The INTRAC tracking filters are designed in such a way as to enable the model to provide the required accurate pointing INTRAC 204 MANUAL ISSUE 1 1 Page 27 TECHNICAL DESCRIPTION Page 28 INTRAC 204 prediction at all times Even when not verified by measurements as occurs for example with loss of beacon the tracking filters are capable of accurately predicting the satellite orbit for many days Under INTRAC control pointing is always controlled from the internal satellite orbit model When a measurement cycle is performed it is always done as a perturbation with respect to current pointing Thus unlike conventional steptrack I
46. l remove power from the antenna drive motors and the INTRAC will enter Standby mode To restore drive the switch should be twisted to reset the switch and any mode should be selected e g Standby Manual Auto An input for normally closed external emergency stop switches is provided on the rear panel Note that this input is not latched in all modes and IT IS ESSENTIAL that if fitted INTRAC 204 MANUAL ISSUE 1 1 Page 1 SAFETY INTRAC 204 these external switches should be of the mechanical self latching type MECHANICAL Mounting The INTRAC 204 must not be mounted so that it is supported solely by the front panel A proper rack mounting kit must be used This may be either of the fixed mounting type or the sliding rail type Suitable mounting slides are available as an accessory Page 2 INTRAC 205 MANUAL ISSUE 1 1 Advantech WIRELESS 2010 INTRAC 204 SPECIFICATION 2 SPECIFICATION amp REQUIREMENTS Required Mechanical Characteristics of the Antenna System To enable the full tracking performance of the INTRAC 204 system to be achieved the antenna system must conform to certain overrun and tracking constraints The tracking drive speed should normally be less than of the antenna Receive beamwidth per second and the overrun drift when power is removed from the motors must be less than 2 of the beamwidth If the system does not conform to these requirements please consult with Advantech AMT Limited
47. ly axis can be configured to alternatively use potentiometer feedback see section below There are six connections for each of the resolvers The recommended cable is one with individually screened twisted pairs Correctly terminated cables can be supplied by Signal Processors Limited 9 Way D Signal Name REO1 Size 11 Size 11 type Weather Socket 10 way Bare Proof iri connector Resolver Resolver Red White n c Ground ResSourceGnd Yel White or Black lb Blk White Screens Fitting to the Antenna How the resolvers are fitted to the antenna depends on the antenna concerned The shaft of the resolver has to be coupled directly to the Az or El rotational axis and the body of the resolver has to be very firmly fixed to a non moving surface Alternatively the shaft of the resolver can be fixed to anon moving surface and the body coupled to the rotational axis For the coupling between the resolver shaft and the antenna axis we recommend a torsionally stiff flexible bellows type coupler which allows for some miss alignment between the shafts but transmits the rotational movement accurately without introducing any backlash It is important the very small movements lt 1 40 beamwidth are coupled accurately without backlash or windup to the resolver It is strongly recommended that the resolver reference points are made by brackets to the fixed and moving parts of the structure and that bearing pins and the lik
48. mergency Stop and Interlock alarms can be cleared only by correcting the cause of the alarm In the event of a Primary Alarm condition arising a alarm code is displayed on the INTRAC 204 Front Panel LCD display The following sections list the codes displayed and explain their significance The alarm code is displayed as an octal number with an alphabetic character inserted in the third position from the left The alphabetic character indicates the current INTRAC operating mode The alpha character is coded as follows XXZXXXXXX Sleep Mode X X M X X X X X X Manual Mode XXSXXX XX X Standby Mode There is no alphabetic character to indicate Auto Mode since alarm codes can never be displayed when in Auto Mode INTRAC 205 MANUAL ISSUE 1 1 Advantech WIRELESS 2010 INTRAC 204 ALARMS The Octal Number surrounds the alphabetic character which is denoted in the following table by x Displayed Octal Code 40x 100000 Polar Synchro Alarm 20x 100000 Polar Drive Fail i Polar CCW limit Polar CW limit Az El Drive Fail i Az El Synchro Alarm Unable to predict Left Limit 00x001000 RightLimit HI 8 Down Limit Up Limit 00x000100 6 Interlock Drive Inhibit Stop Alarm ii Servo Alarm Hardware Alarm iii Beacon Alarm iv 00x000001 0 Notused i Motor not operating for whatever reason driving in wrong direction or attempt to drive within 1 4 of North Az 0 ii The Stop
49. n A full list of alarms together with the alarm codes they produce is given on page 23 The primary alarms comprise Hardware Alarm Drive Fail Alarm Synchro Alarm Limit Interlock Alarm The Hardware Alarm is caused by a processor crash or the failure of an integrity check The INTRAC will reset the processor and memories including the model If the INTRAC was in Auto mode at the time the hardware alarm arose the system will reset the alarm and enter learning mode If the INTRAC was in any other mode it will enter Standby mode and wait for operator intervention The Drive Fail Alarm occurs when the INTRAC 204 fails to detect any change in the resolver output after the drive has been activated The Drive Fail Alarm is also raised if either axis drives in the wrong direction or if an attempt is made to drive within 1 4 of North The Drive Fail Alarm is not activated when in Manual mode The Synchro Alarm occurs if an apparent change in position greater than 1 4 occurs in a 1 64th of a second interval A Limit Interlock Alarm is raised if any of the limit switch inputs or the interlock input become open circuit There are three secondary alarms Unable to Predict Beacon Alarm Servo Alarm INTRAC 204 MANUAL ISSUE 1 1 Page 15 ALARMS Recovery from Alarm Conditions Alarm Codes Page 16 Unable to predict Note Servo Alarm NOTE INTRAC 204 The Unable to Predict Alarm i
50. ngle 0 degrees and the system is calibrated Note lt CR gt signifies pressing the carriage return key INTRAC 204 MANUAL ISSUE 1 1 Page 35 INSTALLATION Southern Hemisphere Set the antenna beamwidth TRACKING SIGNAL INPUT Note 18V LNB BDC supply Page 36 INTRAC 204 In the Southern Hemisphere the antenna should be set to point North With the Fine Tune offsets set to zero the azimuth resolver should then be rotated until the displayed angles is as close as possible to 180 The displayed angle should then be changed to 0 using the Fine Tune Offset facility In order for the INTRAC 204 to be able to peturb the antenna by the correct amount when building and maintaining the model the antenna 3dB beamwidth has to be entered His entered under menu Aux2 Az beamwidth and El beamwidth The tracking signal is provided by the integral L band beacon receiver The IBR L requires a L band beacon signal at a level within the range 80dBm to 45dBm with a carrier to noise ratio C No of better than 40dBHz To allow some margin for exceptional propagation conditions we suggest that the normal clear sky level when peaked on the satellite should be in the range 70dBm to 50dBm Severe signal fades will be handled by the INTRAC algorithm entering Prediction mode for the duration of the fade If the signal is greater than 50dBm attenuation must be inserted and if it is lower than 80dBm a higher gain LNA LNB must be use
51. od of return in order to avoid unnecessary duties and ensure that the packing is adequate to protect the equipment during shipment The cost of returning the equipment to Advantech AMT Limited will be paid by the customer INTRAC 204 MANUAL ISSUE 1 1 Advantech WIRELESS 2010 INTRAC 204 Repairs not under warranty Documentation Return shipment Warranty of repairs Advantech WIRELESS 2010 NOTE WARRANTY amp REPAIR Repairs to equipment not under warranty will be paid for by the customer On receipt of the defective unit Advantech AMT Limited will investigate the fault determine the most effective repair technique and issue a repair cost estimate Repair work will not commence until the cost is authorised by the customer either by a Purchase Order or through a Repair Contract In certain circumstances repairs may be carried out on site by prior agreement On completion of the repair the unit s will be returned to the customer together with a Repair Report and a repair contact name at Advantech AMT Limited The repaired unit s will be returned to the originating location with Advantech AMT Limited bearing the cost of shipment and in transit damage or loss The equipment may be returned to some other location at the request of the customer subject to the shipment cost being the same as or less than that to the original location Advantech AMT Limited will warrant the repaired unit in respect of the work and
52. onth Enter Day Enter Hour Enter Minute No Change Program Track Rapid Model Reserve IESS 412 7 IESS 412 4 scp SGP SGP4 SGP4 SGP8 SGP8 SDP4 SDP4 NORAD SDP8 SDP8 I Basic Basic _ NoChange I IESS 412 Enter Latitude Es Clear INTRAC NORAD Star Track Enter Month Enter Longitude Enter Second Clear IESS 412 Enter Year Enter Day Enter Minute Interval Enter Height NORAD Edit Enter Day Period nies mona Clear NORAD Enter Hour peu Enter Az Offset I Enter LM1 Enter Day El Lite NORAD Buffer Enter El Offset f Enter LONG I Enter LONC1 I Enter Minute Enter LONS Enter LONS1 Enter LATC I Sg Enter Star Az I Sarina Enter Star El Enter LATS1 I Enter LNG170 Enter LAT170 Enter Minute Carr Enter Second Enter Second Page 22 INTRAC 204 MANUAL ISSUE 1 1 Advantech WIRELESS 2010 INTRAC 204 Using IESS 412 or NORAD Data The IESS 412 data Advantech WIRELESS 2010 TECHNICAL DESCRIPTION The INTRAC 204 can make use of Intelsat IESS 412 11 parameter or NORAD ephemeris information in two ways 1 The information can be used by the INTRAC to generate an INTRAC model of the satellite s orbit This model is then used by the INTRAC as if it wasa model it had learnt itself This means that there is no requirement for the 24hr learning period The model is updated and maintained in t
53. p Space Orbits Orbits are differentiated by their period Those of less than 225 minutes are Near Earth Orbits and those of more then 225 minutes are Deep Space Orbits Geostationary satellites are in Deep Space Orbit It is assumed that the user know which algorithm applies to the data to be used However INTRAC will not allow a Near Earth Orbit algorithm to be used with Deep Space Orbit data and vice versa The Basic algorithm available in the Rapid Model Generation table is not of NORAD origin It has none of the embellishments found in the NORAD routines and is meant for test purposes only Once the orbital model has been built using the ephemeris data the INTRAC tracks the satellite from the model and updates and improves it over the following hours and days The IESS 412 and NORAD data can also be used by INTRAC to calculate the satellite s path which is then used for a simple Program Track operation The selections available in Models Program Track are the same as are available in Rapid Model On selecting the required algorithm and pressing ENTER the INTRAC enters Program Track mode INTRAC 204 MANUAL ISSUE 1 1 Page 25 TECHNICAL DESCRIPTION Reserve Model Clear Models Note ANTENNA MOTION LIMITS Software Limits Hardware Limits Page 26 INTRAC 204 Program Track is an open loop method of tracking and as such is unable to correct for any transducer errors or distortions to the antenna caused by wind
54. s Enter and check that the antenna drives to the set angles Check tracking Set the frequency of the L band Integral Beacon Receiver IBR L to receive the required signal Drive the antenna to the co ordinates of the required satellite and check that the INTRAC 204 acquires the beacon signal i e beacon level is displayed on the front panel display INTRAC 204 MANUAL ISSUE 1 1 Advantech WIRELESS 2010 INTRAC 204 INSTALLATION Remote Control Port Check Advantech WIRELESS 2010 Select Auto and check that the INTRAC 204 unit performs measurement cycles acquires the satellite and begins learning the track Learning displayed on LCD sreen This should occur if the antenna pointing is accurate enough Check that after 24 hours of Learning the INTRAC enters Tracking Mode To check the remote control port a PC running a suitable M amp C package e g the Advantech RCM 7 is required With the INTRAC 204 switched off connect the Remote Control Terminal to the INTRAC 204 Switch on the INTRAC 204 and select Remote mode Check that the INTRAC 204 communicates with the Remote Control Terminal by driving the antenna and observing that the displayed angle information changes and the antenna moves Details of the RCM 7 remote operation package are available from Advantech AMT Ltd The remote M amp C command set and message format are contained in the INTRAC Remote Control amp Monitoring Command Set Specification manual INT
55. s drive circuits to directly drive low voltage 24V or 36V motors up to 8 amps The motor voltage must be specified at time of order The INTRAC 204 normally incorporates an IBRL integral L band beacon receiver The INTRAC 204 can be supplied in different variants for controlling 1 2 Az and El or 3 Az El and Pol axes This manual is applicable to all these variants INTRAC 204 MANUAL ISSUE 1 1 Page vii INTRODUCTION A Typical 2 Axis System SPLITTER A LNB dal INTRAC 204 AZ RESOLVER EL RESOLVER AZIMUTH ELEVATION MOTOR MOTOR IBRL INTRAC 204 Page viii OPTIONAL REMOTE CONTROL The Elevation amp Azimuth resolvers provide antenna pointing information and the IBR L beacon receiver provides tracking signal strengih A signal strength derived dc voltage from an external receiver may be used in place of the IBR L The integral Motor Drive Circuits receive the antenna drive Commande internally and drive the antenna to point at the satellite Limit switches on the antenna prevent it from being driven beyond pre set positions The INTRAC 204 may be controlled from its front panel or from an optional PC based remote control terminal package such as the Advantech AMT Ltd RCM 6 or RCM 7 INTRAC 204 MANUAL ISSUE 1 1 O Advantech WIRELESS 2010 INTRAC 204 1 SAFETY SAFETY WARNING POSSIBLE LETHAL POTENTIA
56. s raised by software when confidence in the tracking model is inadequate for prediction Once the orbit model has been learnt the INTRAC can predict for 72 hours If the tracking signal is lost during learning the period of predicting is reduced The Unable to Predict alarm is raised either after 72 hours of no tracking signal or after such other period of predicting as the INTRAC decides based on the length of the learning period When the INTRAC is unable to predict it will either continue to track from the Reserve Model if a valid IESS 412 or NORAD ephemeris file exists or enter standby The Servo Alarm is set if difficulty is encountered performing the cross scans This normally results from excessive motor drive mechanical over run in either axis These secondary alarm conditions alone do not mean that there is a system fault The state of these alarms can be interrogated under remote control However they are not visible from the front panel unless they are co existent with a primary alarm All Primary alarms except the Hardware alarm when in Auto cause the INTRAC 204 unit to go into Standby mode Recovery from Drive Fail Synchro and Hardware Alarm conditions is performed by re selecting the desired operating mode from the menu tree or by sending any remote control mode command including Standby Software limit and hardware limit switch alarms can be cleared only by driving back from the limit condition using Manual mode E
57. t Limits that value is not accepted and another must be entered When all the co ordinates have been accepted the antenna is driven to them and the INTRAC is then set to Standby Positional data for up to 40 satellites may be stored within the INTRAC 204 This menu function is used to call one of the stored satellites and cause the antenna to be driven to the co ordinates See Edit Satellite The co ordinates of up to 40 satellites can be entered and stored Enter the store number between 1 amp 40 and the Az and EL angles and Pol where fitted and the IBR L frequency if an integral beacon receiver is fitted The Models function has a number of sub menus one of which No Change has more sub menus which include a No Change Note that IESS 412 and NORAD models are not applicable to single axis systems INTRAC 204 MANUAL ISSUE 1 1 Page 9 OPERATION INTRAC 204 No Change Selecting No Change drops to the next menu level Each of the three menu levels has a No Change selection Continuously selecting No Change exits from the Menu structure n Goto Models No Change Clear Models Stn Co ords Date amp Time Enter Latitude Enter Year No Change IESS 412 NORAD Star Track Cee RS Enter Month Enter Longitude Enter Year Enter Second Clear IESS 412 Enter Minute Interval Ene yom Enter Height En Dey Enter Month Enter Day
58. the effected sections The axes are always referred to as Azimuth Elevation and Polarisation although some systems may use polar mounts where the main axes might be described as Hour Angle and Declination or Dip axes Azimuth corresponds to Hour Angle and Elevation corresponds to Declination An overview of the INTRAC 204 and INTRAC 204 basic systems Safe usage of the INTRAC 204 The eguipment specification How to use and operate the INTRAC 204 A description of the alarm conditions which can occur A technical description of the operation of the INTRAC 204 How to install and set up an INTRAC 204 system includes information on the external connections to the INTRAC 204 Assistance in finding any faults which may arise Warranty and repair service provided by Advantech AMT Ltd Various information some installation specific Page iii CONTENTS INTRAC 204 Page iv INTRAC 505 MANUAL ISSUE 3 SPL 1997 INTRAC 204 NTENT SUBJECT PAGE Ne EE i COM NS EAE he ee Ee EE a iii Introducing the INTRAC 204 ie v Te SAFETY EE 1 ElectriGal ccd ttt retiennent ae k n 1 FUSING eaea e a 1 ESTIMO S E O N E S 1 Battery Disposal srra e e EE AIE ES 1 RF I P Connector Voltage 1 Emergency MOP aiii ar 1 Mechanical viii 2 2 SPECIFICATI N ocio ii tidad 3 Requirements of Antenna System 3 A A eebe eege enter oy 4 3 OPERATING THE INTRAC 204 nn nnrrsrerrnnnmnnnenmeneneeneneennnennnnneennes 7 Front Panel EE
59. the alarm from the alarm code s Take the necessary action to clear the cause s of the alarm Select Manual Mode from the Mode menu Using the Manual Control keys drive the antenna to the full extent of its travel in each direction Confirm that the antenna actually moves in the required direction Check that when a limit switch is reached the motor stops and the System Alarm indicator illuminates Only one Manual Control key should be pressed at one time and it should be fully released before pressing another control key If a Dual Speed Motor Drive Cabinet is used check that the FAST key operates correctly Pressing the FAST key when pressing a Manual Control key should latch fast drive in the required direction Pressing any Manual Key when in latched Fast Drive should have no effect Pressing the Fast key again should remove drive The Enter key is the FAST key Check the operation of the front panel Inhibit Drive switch by pressing it when one of the motor s is running Ensure that the motor stops and that the System Alarm indicator illuminates To re start the motor select the appropriate operating mode If external emergency stop switches are fitted check their operation in the same way It must not be possible to re start any motor whilst any emergency stop switch is in the operated state Check antenna drive Select GOTO Position mode Enter Az amp El angles slightly off the current position Pres
60. to the appropriate data input menu There are two methods of limiting the travel of the antenna a software method and a hardware method If either type of limit is reached in any direction in an automatic mode drive is removed a primary alarm is raised the System Alarm indicator is illuminated and the relevant alarm code is displayed Software Limits are set in the Aux Soft Limits menu If they are reached in any mode other than Manual an alarm is raised and the INTRAC enters Standby mode In either Manual P or Manual A mode the antenna may be driven through the soft limits with no warning Hardware limits are physical normally closed contact switches mounted on the antenna assembly at the maximum points of travel at each end of all driven axes When the antenna reaches one of these switches the switch becomes open circuit This open circuit condition causes drive to be removed from the motors and signals the INTRAC that a limit has been reached The removal of drive is such that the antenna cannot be driven INTRAC 204 MANUAL ISSUE 1 1 Advantech WIRELESS 2010 INTRAC 204 AXES POSITION TRACKING SIGNAL The Tracking Algorithm Advantech WIRELESS 2010 TECHNICAL DESCRIPTION any further in the limit direction but can be driven in the opposite direction in manual mode When a limit is reached the INTRAC is automatically put into Standby Mode except when in Manual P Mode In this mode the antenna cannot be driven
61. z amp El offsets which are input on the Goto Models Station Coordinates menu screen The IESS Epoch defines the time instant at the start of the period of the IESS data The IESS Minutes Interval defines the period in minutes between pointing updates in Program Track mode The IESS Days Validity normally 7 defines the period of validity of the data The INTRAC will accept and use the data two days either side of the validity period The parameters IESS Sat LMO LM1 LM2 LONC LONC1 LONS LONS1 LATC LATC1 LATS LATS1 are the IESS 412 11 element ephemeris The parameters IESS Sat LONG170 LAT170 are the IESS 412 11 element ephemeris 170hr checksum The data ranges shown above as 9 99 actually accept more than two places of decimals The LMO value in the IESS 412 data from Intelsat is given in the range 180 to 180 The INTRAC 204 cannot accept negative values for this field from the front panel It can accept them from a remote M 8 C terminal It is therefore necessary to add 360 to the supplied value if negative when entering from the front panel This only applies to the LMO data field negative values can be entered in the other relevant fields The NORAD ephemeris data consists of a string of 166 characters The first 160 characters are split into two Card Element Sets of 80 characters each The next two characters 161 amp 162 comprise the Minutes Interval and characters 163 amp 164 comprise the P

INTRAC™-204 INSTALLATION & USER MANUAL

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INTRAC&trade;-204 INSTALLATION &amp; USER MANUAL

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INTRAC™-204 INSTALLATION & USER MANUAL