FTU - La Silla Facilities
Contents
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4. A similar assembly is used but in a linear configuration There is no encoder as only 2 mechanical end positions are used The small field has its own manual focus trimming 11 12 F 35 Tech Maintenance Manual LSO MAN ESO 63106 0001 3 5 X Hair The TCCD looks to the X hair assembly through a small center hole in the GP mirror The controller amplifier regulates the current of an incandescent bulb located behind a tiny wire cross The cross stray light moves over the sky field and is a fixed reference on the camera chip field 3 6 Tecnical CCD The xxxx X xxxx CCD camera head is housed in the Cass IR Adaptor and comes almost in contact of the filter wheel Power and coolant are taken from available outlets on the telescope Cassegrain rota tor and the CCD head is connected to the support electronics of the Rotator own Center Field Camera F 35 Tech Maintenance Manual LSO MAN ESO 63 108 0001 4 TOP RING UNIT The Focusing and Turning Unit is under control of channels 3 and 4 of the Maccon controller nbr 2 The chopping unit is mounted under the lower flange of the FTU and 1s electrically independant from it The focus and rotating axis are blocked in the no energized state by mechanicals built in brakes For safety reason these 2 functions are hardware interlocked with their respective brake to protect them against any software glitch or manual mishandling part of the current through the brake coil is used to power the hardware limit c
5. C16 1 C17 cs cle B W cig Loic lk STE b luF Reset I an Dacs fram Acromag A29 External T aani Synchro ON Position E Synchro T Out DAC 7624 e us Hu EU JL mm p 420 660 lz 680 M T 0 1 uF em L 5 1 V 1 6 uF 2 a uF 10 uF 23 LSO MAN ESO 63108 0001 F 35 Tech Maintenance Manual FTU Brakes Function 8 3 C11 C12 Brake Status AUXILIARY BOARD oS Low Limit 10 412 c21 c4 C25 C8 1H5337 5 V electr Limit Switches dei m dei E Ae V 10 SC 24 V gt Foc Rot 35 215 Foc Rot TIP35C Re 2 d CS CT 4 I Focus Rotator 5 E 7403 b 2H2227A l 2 E ROS 0 2 2 WV TE 5 E 1 C13 C14 Brake LSO MAN ESO 63108 0001 F 35 Tech Maintenance Manual 24 FTU to LCU Cabling 8 4 que Le sd1T145 cH S TYHTIHHIL 4 We e AODLVDLOV AIEAI AEM SN ahueTq ILLA I S8A01l33UUu03 LIHI 301 401 apts um x SIL HOLULU 25 LSO MAN ESO 65106 0001 F 35 Tech Maintenance Manual iring Servo Rack Internal W 8 5 oa 022929250 9 Juv9 9708 0S3 AuO1vVAu3S80 NIACARI 0S3 5 ONY
6. 84 1 ro NS w w w w w w w w w TI TI uw ww wee See EEF WALLET ee ne one sans ee 4 d EH SCT din ms 99999 1222312375 2200 le ove AM RS e we AR TT M esse EUR EI Tasse l LE E 1 4 9 4 4 9 9 9 4 gg eg V 9 9 9 gg gg gg 4 4 1 s oe on e www ewww reer o dE ii avv is 99 Me Uu xu russe SP a A SES A SKS SS A SR SS SBS SZ 0 W j i ee e ele E A Le pepe mee g mg je ke ke 1 1 Le a j 3 1 1 gt MM e Sri 5 Ww wg 9 P F 35 Tech Maintenance Manual LSO MAN ESO 63 108 0001 27 9 MAPPING OF ACROMAG PORT P2 Control bits Port 7 pin 7 Chopper Power ON Port 7 pin 6 Focus Brake ON OFF 15 m Tremo e e Port 6 pin 1 Chopper Posit Control Dichroic Port 6 pin 0 Encoder bit 8 Port 5 pin 0 to 7 Encoder bit 0 to 7 C24 C17 Port 4 pin 0 to 3 DAC bit 8
7. T SXV suoneorri ods suonoun SNOLLVOIAIOdHdS SNOILONNAH 20 F 35 Tech Maintenance Manual LSO MAN ESO 63 108 0001 21 LSO MAN ESO 63108 0001 F 35 Tech Maintenance Manual 8 SCHEMATICS Adaptor Interface Connections 8 1 rr et r alae at E n E doloe E Bg E E 1 n gt KE oleae 5 o e 8 Sei el ZEE sl E a ze X 065 es M RC E Rc e d LT AA w GEESS DEE GE SN Ge T eee SUE Y DE D 0 4 Sch p a rj 45 U O c c J 5 SL AA AN Fi brest 2092 20b2 r Eu o mi E H E D 1 1 4 m H D d J da I del pi e U c I 0 E PISTE PLS The u p d d F E H 3 E uu fy i H B p D gt E b U EN in r X T i ite D Tez concen 1 Als ed Si d m xL S LT s J gt CS B 8 y E 4 T 3 T 3 2 ard 22 3 Eu i 22 F 35 Tech Maintenance Manual LSO MAN ESO 63108 0001 8 2 Chopper Offset Control o Your 47d Tout B Tout C 47 nF Tout D nalog A327 A31 Offset T Output ae DBO DEBEi11 C 15
8. Cassegrain Cage Ethernet TIMMD Data ACQ ADAPTOR Dichroic Guide Probe 1 Guide probe X 2 uide probe Y Maccon DC Contrl 1 Maccon DC Contrl 2 3 Focus 4 Rotator Chopping Synchro Chopping Signal LCU w3p6adi Control Room xterm Monitoring F 35 Control Panel F 35 Tech Maintenance Manual LSO MAN ESO 63 108 0001 3 CASSEGRAIN ADAPTOR The IR Adaptor shelters 7 functions X and Y Guide probe motion the TCCD guiding camera with its filters wheel a pair of swapable field lenses a pair of diverting dichroic mirrors and an electronic Cross hair Each function is an independant mechanical electronic set which can be removed for lab tests A local interface box provides the buffering and power needed for the long connections to the main rack A set of test cables permits a direct connection to the VME modules in the lab configura tion See Chapter 8 1 for details of connections with the LCU 3 1 Guide Probe In front of the TCCD a small flat mirror with two axes rotation and a central hole can scan the field mirror and allows for the exploration of the sky and autoguiding features As these 2 movements go through motor rotation worm nut translations and lever arms they lead to a non linear relationship beetween the encoders and the mirror tilting So a precise scale mapping of the field 1s necessary The incremental encoders 250 pulse rev runs for 32 turns b
9. E LCU Local Control Unit ACROMAG Digital Input Output Register from Acromag TCS Telecope Control Software ICS Instrument Control Software TCCD Technical CCD I O Input Output GP Guide Probe PID Proportional Integral and Derivate WS Workstation 8 F 35 Tech Maintenance Manual LSO MAN ESO 63 108 0001 F 35 Tech Maintenance Manual LSO MAN ESO 63 108 0001 9 2 OVERVIEW The F 35 configuration allows the use of a chopping secondary mirror for Infra red observations with its own focusing and rotating features These functions are proper of the so called FTU Focusing and Turning Unit on the Top ring meanwhile at the Cassegrain focus the IR Adaptor permits some functions related with guiding as guide probe motion guiding camera field width and detectors instruments swapping The former control electronics based on CAMAC NIM technology 1984 has been almost entirely refur bished to be hardware and software VLT compatible Some components as the encoders have also been re placed with new types for unavailability reasons discontinued or for direct compatibility with the new control modules The mechanical and electronic modules are spread in 3 sub systems Electronic Rack and IR Adaptor both located in the Cassegrain cage and the FTU See for the specifications of the different functions and for a synoptics of their relations 10 F 35 Tech Maintenance Manual DS Focus Rotator Brakes Top Ring LSO MAN ESO 63108 0001 FTU
10. E5 E6 violet J 6 brown E3 black K 17 white E2 46 Cable 9 Top ring Motor amp Lim yellow green F 13 yellow S 4 F 35 Tech Maintenance Manual 1 0 LCU Terminals Cabling Cable 12 Terminal Strips lower Auxil Board Shield ROTATOR M green R 3 M brown 1 18 T white M 19 violet Z FOC Encod A A amp B swapped black R A to invert white S counting brown T yellow H direction red X 5V blue V 0 V white orange L white orange L Shield Shield violet Z ROT Encod A black R Ns white T B brown U B gray W Z pink X L yellow A Fault red H 5V Blue K Cable 10 Top_Ring Encoders 0 V LSO MAN ESO 63106 Cable 7 Cable 8 Maccon 2 Ch3 Maccon 2 Ch4 Focus Rotator green blue E4 green blue green blue green blue brown E7 E8 white E5 E6 brown E3 white E2 B brown B7 B white B5 A red 8 A blue A6 pink A4 gray A2 yellow C2 green C6 Shield C6 Shield C6 red 8 blue A6 brown B7 white B5 pink A4 gray A2 yellow C2 green C6
11. EUROPEAN SOUTHERN OBSERVATORY Organisation Europ enne pour des Recherches Astronomiques dans l H misph re Austral Europ ische Organisation f r astronomische Forschung in der s dlichen Hemisph re ESO LA SILLA LA SILLA OBSERVATORY F 35 Cassegrain Adapter and Top Unit Hardware Maintenance Manual LSO MAN ESO 63 108 0001 Issue 1 0 m December 22 2001 INTERNAL USE ONLY Jacques Roucher 01 11 2001 PEG ALC MERE Name Date Signature U Weilenmann Approved Name Date Signature Released Name Date Signature ESO LA SILLA TELEPHONE 56 2 698 87 57 FAX 56 2 695 42 63 2 F 35 Tech Maintenance Manual LSO MAN ESO 63 108 0001 F 35 Tech Maintenance Manual LSO MAN ESO 63 108 0001 Change Record Issue Rev Section Page affected Reason Initiation Document Remarks 03 09 2000 First preparation 02 11 2001 Ist oficial release 4 F 35 Tech Maintenance Manual LSO MAN ESO 63 108 0001 F 35 Tech Maintenance Manual LSO MAN ESO 63 108 0001 5 1 INTRODUCTION 7 EE a ee 7 I SC ODE cece gna EN 7 Applicable Docume iS u ru oho Ed 7 Lk R f rence DoOCcumefils 229 He Eee PEASE EERE Se 7 1 5 Abbreviations And Acronyms 7 2 OVERVIEW 9 3 CASSEGRAIN ADAPTOR 11 eee ul Ain E 11 20 Piller WV hA aao id
12. F Mani RACK 2 356 3l 6 F 35 Tech Maintenance Manual LSO MAN ESO 63 108 0001 10 3 Details of Cables 33 F 35 Tech Maintenance Manual LSO MAN ESO 63 108 0001 7 1 INTRODUCTION 1 1 Purpose This manual describes the setup of the control electronics of the F 35 Focus configuration on the 3 60m tele scope Its goal is to permit the repair and maintenance of its different modules Installation and service proce dures during an observing run are also detailed 1 2 Scope This document is aimed to the maintenance staff in charge to install and or repair the different components of the F 35 configuration The documents listed en 1 4 are still the basic source of information for some part of the hardware and in this document the emphasis is put on the new modules and the connections of the differ ent sub systems 1 3 Applicable Documents LSO MAN ESO 80100 0002 Issue 1 0 20 06 00 F 35 Adaptor and TCS Software User s Manual 1 4 Reference Documents The following documents are referenced in this document 1 Maintenance manual of the Mechanics and Optics of F 35 IR Top unit and F 35 IR Photometer Adaptor for 3 6M Telescope from J L Lizon A van Dijsseldonk ESO 1986 2 Maintenance manual for the F 35 Wobbling Mirror Electronics and Servo System from B Jensen J M Moresmau ESO 1985 1 5 Abbreviations And Acronyms The following abbreviations and acronyms are used in this document FTU Focusing and Turnig Unit VM
13. MMD Focus Input 1 Rotator Input 2 Servo Control Output ad erta rea F R c One Brake Power Power Supplies Motor Control Ee MN MO OT mir 2 Mirror DEENEN e E MEZ ccc QM MC IN ET Inputs Power Amps MU to Top Ring 30 F 35 Tech Maintenance Manual LSO MAN ESO 63 108 0001 3l LSO MAN ESO 65106 0001 F 35 Tech Maintenance Manual dems 29 uonisod 194 doyo 20815 So euy ONG x dg NOT 11soq 1eddoq 191 NIA LC ui 0 TISI NIG suryrdo OT OI ur 08 0 0 51 10 9014 me I II 101 461 Apuing 0 0 29 Jopoouy snood 1 Apuing 6 SUIY dOL 0 130 30 20 0 219 10383031 p uoo INST qA UoUE INEI d uoueo pued qisq L C C 08 0 Ad 16 INST UoUE INEI d uoueo pued 08 0 Ad 16 S EUTULI9 9 7 UoN 0 113 smog 1 YO Z uooov q PIJ INST q uouro 9101 qinsiq L L III yed H YD 1 59 59 10 INST 7 INST d pued ASIA LVEF ETS ur 08 0 Yd YD I uoooepq Ad INST WSI d pued ASIA LTtL
14. TtTt ur 08 0 Yd I UD I UON X dD I xe s qu2 Jo 1511 Z 51451 Jo Surmqe TOT 32 F 35 Tech Maintenance Manual LSO MAN ESO 63 108 0001 F 35 Tech Maintenance Manual 1 0 LSO MAN ESO 63 108 0001 33 10 3 Details of Cables 1 2 Guide Probe X Y F 35 Upgrade VME backPlane Maccon 1 F 35 Distribution Panel Har Pak Harting Cannon D 15 amp 25 pins Males ss rrr e mm ow m me w m u om x ow em a x s ul w m x p w e u e poo ow m me ow e w se w ow e x s ejl x el ES w w x x w m w ee m x xo s w s x x om w r mens x 34 F 35 Tech Maintenance Manual 1 0 LSO MAN ESO 63106 4 Objective X Hair F 35 Upgrade VME backPlane Maccon 1 Ch 3 amp 4 F 35 Distribution Panel Har Pak Harting Cannon D 15 pin Male FROM WIRE COLOR SIGNAL COMMENTS om w fe A owe ep j owe s e owe A oe m u pw ojo Low F 35 Tech Maintenance Manual 1 0 LSO MAN ESO 63 108 0001 35 5 Filters Wheel F 35 Upgrade VME backPlane Maccon 2 Ch 1 F 35 Distribution Pan
15. cal mode To test the integrity of the different functions without the need of a workstation and the net one can use the direct analog handset feature designed in the DC Motor Drive modules One can select the di rection and speed of the movement on one axis function at a time and check the result with the status 16 F 35 Tech Maintenance Manual LSO MAN ESO 63106 0001 Leds Upper and Lower Limits Zero pulse For the 2 FTU functions a pair of small switches on the front plate of the Auxiliary module permit to release any of the corresponding brake before any movement on these axis F 35 Tech Maintenance Manual LSO MAN ESO 63 108 0001 17 6 Disassembly xx refers to items in Drawing T 45 102 f 1 2 02 Making some tools as I 31 300 07 08 09 to remove the Transroll nuts 6 1 6 3 Installation in Test Stand Set up to materialize measure the center of rotation relative to spider arms before dismounting Install hook on top of FTU Ease out or remove the 4 x M6 push pull screws and release the 4 clamps a fastening body 1 31 300 02 to free up the FTU from the Top Ring b cylinder see F 35 Maintenance Manual chap A 1 1 6 page 13 Ease out smoothly the FTU with the crane Install it in the Test Stand Clamp it w 1 31 300 02 Removing the Rotator Encoder Free up the cables connectors from the Top Flange To free up the supporting steel spiral set T45 102 68 amp 69 unscrew the T45 102 68 fix
16. eetwen the hardware limits of the worm nuts which gives 8000 pulses for a total field of 9 6 an angular resolution 0 07 at the center The reference positions are given by the first zero pulse of the encoders after coming back from the upper hardware limit at initialisation See Ref Document 1 Chapt B 1 2 3 3 2 Filters Wheel In front of the TCCD a wheel bearing 8 filters is driven by the motor encoder set through a factor 8 re duction which gives 2000 pulse rev and a resolution of 0 2 on the filter position The reference position is given by a magnetic sensor which detects a hole in the metalic wheel again synchronized with the zero pulse of the encoder See ref Document 1 Chapt B 1 2 4 3 3 Dichroic Mirror Three basic positions for this rotating set of 2 mirrors a central one where no mirror intercepts the light beam to permit a non attenuated view of faint sources and two end positions where the beam is diverted to one of two detector The central position Dichroic OFF is referenced through an absolute 8 bit encoder meanwhile the 2 end positions are fixed hardware limits The motor drives the rotating set through a slipping clutch and a bistable spring assembly This configuration ensures that a perma nent mechanical force maintains the mobile part on the hardware limit when the motor is OFF Another critical condition 15 the good balance of the rotating part See the counterweight trimming 3 4 Objectives Changer
17. el Har Pak Harting Cannon D 15 amp 25 pins Males FROM WIRE COLOR Ee ow ow ul ow owe owe e poo pw ojo ome pw oo pep w w ow eoo mm 04 DU eme wl sl o mw p fe j e j el x j Coe CNN x 36 F 35 Tech Maintenance Manual 1 0 LSO MAN ESO 63106 DATE 18 mim 2000 VME backPlane Maccon 2 Ch 2 F 35 Distribution Panel Har Pak Harting DIN 41612 Cannon D 15 amp 25 pins Males we EE SNR ennen _ w ml a w wa ow jul x ml pw j s owe j owe e poo p e pw oo m 04 u ow oo oo re w e poo mm L9 fef mmer mem CS 178 Dichroic Mac 2 Ch 2 F 35 Tech Maintenance Manual 1 0 LSO MAN ESO 63 108 0001 37 7 Focus Ctrl Terms F 35 Upgrade VME backPlane Maccon 2 Ch 3 Back Terminals Strips e mj __ m mm 0 LE T E2 B6 Brown White Green Blue No
18. ircuit hence when the coil is not activated both end limits signals are in the limit reached state and inhibit the output amplifiers In local mode 2 switches permit the manual release of the brakes and the control of the axis with the handset These functions are implemented on the Auxiliary board see Chapter 8 2 amp 8 3 4 1 Focus An encoder of 250 puls rev and 5 5 revs 5 5 mm translation full range give a resolution of 4 0 micron pulse The velocity servo loop is of the proportional integral type as the output circuit 1s open when the axe is braked The former design maintened the motor under control even with the axe blocked and would have then developped full ouput voltage with an integral correction See Chap 2 1 2 in Wobbling Mirror Maintenance manual ESO 1985 4 2 Rotator The mid range position was selected as to permit a East West direction chopping and with a full range of 205 950 encoder pulses we can explore over 90 on both sides Scale 1 pulse 0 22 1 gt 4 63 pulses Due to the lack of space there was no Tacho generator installed in the original design and the control was implemented through an open loop Now a derivative correction is implemented in the Maccon controller software which allows for a larger proportional gain better accuracy and a smoother rota tion 4 3 Chopper The control of the M2 chopping mirror still use the same servo control board in its dedicated small rac
19. ite Grey GND Block A ROTATOR Handset Input Not Used Yellow Brown lt Z 2 Le lt re CH White Green Green Brown Z Red Blue FOCUS Brake Return C21 Pink ROTATOR Brake Return Gray Pink 24 V Brake amp Limits A10 A12 Brown Block C lt A18 C18 A Grey gt E 3 F 35 Tech Maintenance Manual 1 0 LSO MAN ESO 63 108 0001 45 LCU Terminals Cabling Cable 9 Cable 12 Top ring Terminal Strips lower Motor amp Lim Auxil Board pink A 8 grey N 7 grey pink Cable 7 Maccon 2 Ch3 Focus Cable 8 Maccon 2 Ch4 Rotator Focus P black C25 brown C3 lt 5 grey C22 red C4 blue C5 blue C23 grey D3 lt 2 yellow C20 pink D4 yellow D5 white grey ALCI green C6 green C6 C 10 green C18 green C7 green C7 Shield green blue A2 Shield green blue yellow brown Rotator P C8 brown C3 MP white green C5 red C4 white green D blue C5 II brown green red blue C3 pink D4 brown green red blue U 6 Power white yellow Supplies B 9 yellow brown orange T 5 Focus Brake pink C21 Rotator Brake pink gray C4 24V Brakes amp Limits brown A10 A12 orange black gray 8 8 RENE blue 5V blue Al4 red Focus M brownE7 E8 blue P 2 D M white
20. k The analog control loop with PID correction has 2 inputs one of which is feeded by the Chopper Offset function from the Auxiliary Board That function uses 2 DACs and an analog switch From the parameters given by the observer On Star Position and Chopping Amplitude the software computes the respective values for the 2 extreme positions of the mirror and loads them into the DACs Then a 2 to 1 analog switch selects the signal The selection is controlled by 2 logically ANDED signals bit 1 P 6 from Acromag for software convenience and a TTL input for an external signal when the detec tor actually needs to master the chopping See Chapter 8 2 13 14 F 35 Tech Maintenance Manual LSO MAN ESO 63 108 0001 F 35 Tech Maintenance Manual LSO MAN ESO 63 108 0001 15 5 5 1 SETUP AND OPERATION Setup During an instrument change over the different parts shall be installed in the following order l 7 8 9 The Main Electronic Rack on its dedicated stand with front door towards the center of the cage 2 The Cassegrain Adaptor on the focal instrument flange 3 4 With the Telescope to the Platform connections of the Top Ring cables 4 connectors and removal of Exchange of the Top Ring Units F 8 lt gt F 35 the Chopper mirror M2 cover In the cage the main cable beetween the Cass Adaptor and the Main Electronic Rack Burndy 104 pin Connections from the Top Ring to the Main Rack behind and thro
21. m mew ow e omm mem ff m ew oom om omm omm om e mama omm e omm mw omm LL j j j o LL ll LL ll O U ll 42 F 35 Tech Maintenance Manual 1 0 LSO MAN ESO 63106 PE esa EN we o oom Comm pe ice mens men w ww ese s s x Treo amore j wm em Dope mem fa f T F 35 Tech Maintenance Manual 1 0 LSO MAN ESO 63 108 0001 43 Kisa NEM VME BackPlane Auxiliary Board Terminal amp Acromag 2x DIN 41612 to solder DIN 41612 amp bare wires w tags Z ee Upper Upper Connector a Acromag Board DIN Acromag Board DIN 41612 Upper Upper menas ooo ES ran m p ow mena ow mw _ fee fp Umen m e wem e omm e po ww a a CT ome em a mew a ime omm e a omm omm mp a ome a d LL 44 ce erre se wem Lal semema fe ne Lower Connector Terminals Strip ll lt FOCUS Handset Input Not Used GND A1 C1 Wh
22. minals FROM WIRE COLOR Brake lt Brake 24 V amp LIM Shield Block D Violet Red Blue Block C Grey Pink Brown not used Re am 39 40 F 35 Tech Maintenance Manual 1 0 LSO MAN ESO 63106 10 Foc Rot Encoders lopring PE mic Connector asmbly of shielded 0 80 m PLUG Burndy 23 amp 19 pins Female Chassis Terminals TED White Yellow NAME PROJECT F 35 Upgrade S U K N N Un lt X lt V Shield kass Burndy 19 pin Chassis Fem Lowe White Yellow T L ROTATOR A Z T U N W X A Un lt lt K Shield L F 35 Tech Maintenance Manual 1 0 LSO MAN ESO 63 108 0001 4 11 ACROMAG F 35 Upgrade VME BackPlane Acromag P2 LCU BackPlate Auxiliary Board DIN 41612 welded DIN 41612 2x Cannon D 25 amp 9 pins asa 1 9 tQ Amien Board DIN4I6I2 Upper Auxiliary Board DIN Auxiliary Board DIN 41612 Upper Upper e ffm e aff ome pw m mener om _ mw 9m ww pow pope ES owe ow poem om mew o m ow _ ow om s e oom ffm pomme oom m e ronn ew mam poweme omm m poe wem e mw ow pope mew om
23. point axle to loose it from the T45 102 07 support and un roll steel spiral and cables Remove the 6 M6 screws 44 and then the top flange I 31 300 01 Remove the 4 spring washers ring 10 and Tap 04 Ease out the assembly of 02 ball bearings set 07 Magnet Brake along the 05 cylinder Put back Tap 04 on 05 cylinder Extract 07 from the assembly as it has to be machined to accept Heidenhaim encoders in replacement of the Litton s Removing the Focus Encoder Now the 6x M6 long screws T45 102 47 can be accessed and dismounted this will free the Electro mechanical Focussing part from the Mechanical Rotator and Focusing part Then the Electro mechanical part can be removed holding it by the counterweight and lifting it smootly while taking care of the cables CAUTION Do not apply force on the focussing screw or any part still attached to it 18 F 35 Tech Maintenance Manual LSO MAN ESO 63 108 0001 19 LSO MAN ESO 63 108 0001 F 35 Tech Maintenance Manual s s c c c CIC UI U029 JAI 1 9 0 L d 120 Od OVG 9 9 d smeig CLM exerg L 9 d smeig OLM exerg 19414019 0E T Ad Ad ALOE 21898 ANS SOP JOS 30p COZ 95151 301 1018101 10591 c 95101 10911 0 1 1 11 91011511 PYM ave
24. t Used ULim P C Brown MP C d ULim P Block A B LLim N MN Pink LLim N Yellow Shield Green Blue p e N gt gt III vena ital gt Brown White N gt Pink Block G gt Gray Yellow a Green Shield Cd gt Green Blue Servo Parameters TG R2 P D 2 7K 100K 0 25UF OUF m e D lt 38 F 35 Tech Maintenance Manual 1 0 LSO MAN ESO 63106 wm me VME backPlane Maccon 2 Ch 4 Back Terminals Strips wp ow B6 Brown White Green Blue Not Used ULim P Brown MP a ULim P CH Block A B LLim N MN Pink L Lim N Yellow N J Shield Green Blue lt Brown White N gt Pink Block H gt Gray e Yellow GND e Q gt NINI SI 6 A1 Q R Green Shield Green Blue Servo Parameters TG R2 P CMM D infini 20K gt lt F 35 Tech Maintenance Manual 1 0 LSO MAN ESO 63106 0001 9 Foc Rot Ctrl NAME PROJECT F 35 Upgrade Topring 0 80 m Burndy 19 pin Male Chassis PLUG Ter
25. to 11 C32 C29 Port 3 pin 0 to 7 DAC bit 0 to 7 A24 A17 meme Inducer bit Default Status 1 gt Power OFF ON Oo 1 gt Axe locked Brake ON 1 gt Registers latched ON 1 idem Focus I 1 gt Axe locked idem Focus 1 gt DAC B Ref Posit 0 gt DAC A Offset Posit 40 47 Oo Oo 24 31 pins C5 C8 C13 C16 pins B5 B8 B13 B16 T Ea 28 F 35 Tech Maintenance Manual LSO MAN ESO 63106 0001 LCU VME Slots Configuration Motor Controller for Guide Probe Objective Crosshair O Motor Controller for Filter Dichroic Focus Rotator DAC for Chopper Control Focus Rotator Brake Control F 35 Tech Maintenance Manual LSO MAN ESO 63 108 0001 29 10 CABLING OF THE MAIN RACK 101 Synoptics Al X Hair L _ VME LCU F 35 gt I3p6adi Objectives L E remm Auxiliary board ichroic EGLI E idi E e zz 5 Filter om D Rotat ze x A GP Y 2 Dichroic Maccon 2 ke UTILE D L1 1 Filter 5 Bite E EN EX TI DIE Eet ee 5 A Maccon 1 8 NER L To F 35 Adapter F 35 Adapter L ee re Synch from TI
26. ugh the floor aperture As space is limited these connections require to momentarily move 15 cm forwards both Power Amps and Servo racks On Power Amps Rack Mirrors Drives 1x Souriau domino type labelled MU 2x 220v plugs from Servo rack 220v power is under control of a solid state switch On Servo rack Position Sensor 1x Lemo 6 pins labelled PM Mirror Ends Stops Burndy 19 pins labelled E From LCU terminals Focus and Rotator encoders Burndy 23 amp 19 pins respectively labelled F amp R Foc Rot Motors Brake Limits Burndy 19 pins labelled M DO NOT confuse with Mirror Ends Stops Chapter 8 4 gives a synoptic view of the Top ring cabling Ethernet connection on the Main Rack Power connections on Main Rack and Cass Adaptor Power and Signal connections of the TCCD from the available modules on the Cassegrain Rotator 10 A Position Signal is available on a BNC connector of the Chopper Servo loop module to be monitored 5 2 in the control room Operation At power up on both the Cass Adaptor and the LCU in the Main Rack nothing happens as the system is in local Manual mode Meanwhile the CPU loads the application from a Server 2 min before to be able to respond to control from the User Interface in the corresponding workstation Once the User Interface takes control no local action 1s possible from the handset unless the CPU is hardware reset 5 3 Testing in lo
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