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Argus Radar Scanner CE, Technical User Manual

1. Khas Figure 9 10 SRT POWER board 9 10 Rev 1 SRT X BAND RADAR SYSTEM FIGURES Input Protection R8 24 DL1 GND Figure 9 11 SRT POWER board general block 988 10927 001 9 11 1 SRT X BAND RADAR SYSTEM FIGURES Wrong polarity Over Current 12 VT 50 Vdc protection Voltage To SRT Control protection Sensor Line To SRT Control V DL1 LVPS HVPS Figure 9 12 SRT POWER board protection circuit 988 10927 001 9 12 Rev 1 50 Vdc 988 10927 001 Filter Transformer MOSFET FLYBACK CONTROLLER 16 5 16 Vac 16 Vac 24 Vac SRT X BAND RADAR SYSTEM FIGURES Filters amp Regulators F3 MOSFET VFIL CONTROLLER Figure 9 13 POWER board L VPS circuit 9 13 F2 15 Iso CC w SRT_MOS F7 15 5V General F5 24V power supply F6 15VF F4 5V CL 0 V FIL SRT MOS SRT_Control PW ON SW Fil From SRT_Control Fil ON Rev 1 SRT X BAND RADAR SYSTEM FIGURES 700 V SRT MOS 700 Vac Filters 50 Vdc 5 Filter Transformer 460 Vac Regulators 230 Vac 150 V To SRT Control DL3
2. XTB1
3. Medium frequency U U U U 1 M LL Medium pulse Low frequenc LL __________ Long pulse Low frequenc 988 10927 001 2 8 Rev 1 SRT X BAND RADAR SYSTEM SPECIAL DETECTION SECTOR BLANKING SENTENCE PSE2 a x X X X X X x x hh lt CR gt lt LF gt End Sector 2 Start Sector 2 End Sector 1 1 Start Sector 1 D Sector Blanking Values Sector Blanking Request 2 Notes 1 Start amp End Sector units are degree integer value Es 123 71 This value will be rounded depending from the position sensor used 7 If Sector Blanking Request don t care NEW SECTOR BLANKING SENTENCE SPSE3 a x x x x hh lt CR gt lt LF gt L End Sector 1 1 Start Sector 1 Sector Blanking Request 2 1 Value of Sector one 2 Value of Sector two 3 Value of Sector tree 4 Value of Sector four Notes 1 Start amp End Sector units are degree integer value Es 123 71 This value will be rounded depending from the position sensor used 7 If Sector Blanking Request don t care of data 988 10927 001 2 9 Rev 1l SRT X BAND RADAR SYSTEM SPECIAL DETECTION TIMERS INITIALIZATION SPTIM x x X X X X XX X X X X X X X hh CR LF Timer M Pulse Low Freq Timer S Pulse Low Freq Timer S Pulse Medium Freq Timer L Pulse Low Freq 2 Timer M Pulse Medium Freq Timer S Pulse High Freq Timer Standby Status 3 Status 2
4. 9 26 FIGURE 9 27 ELECTRONIC RACK RF HEAD 9 27 FIGURE 9 29 RE HEAD VIEW a aka 9 28 988 10927 001 V Rev 1 SRT X BAND RADAR SYSTEM INDEX FIGURE 9 29 ELECTRONIC RACK VIEW u u ptt pa aaa RV Sima 9 29 FIGURE 9 30 ENCODER VIEW nnn nnne nnns sss sans 9 30 FIGURE 9 01 ROTARY JOINT um 9 31 FIGURE 9 32 BRUSHLESS MOTOR 9 32 FIGURE 9 33 SRT X BAND RADAR SYSTEML_LAYOUT 9 33 FIGURE 9 34 SRT X BAND RADAR SYSTEM SCHEMATIC BLOCK 9 34 FIGURE 9 35 RF AMPLIFIER LIMITER NOISE AND POWER DIODE AND CIRCULATOR 9 35 FIGURE 9 36 SRT ADAPTER BOX EXTERNAL enne nnn nnn nnns 9 36 988 10927 001 VI Rev 1 SRT X BAND RADAR SYSTEM SOFTWARE REVISION WARNINGS Warning information The following warnings appear in the text of this technical manual and are repeated here for emphasis For correct operation please read this instruction manual carefully before operating the equipment WARNING IN THIS OPERATING OR MAINTENANCE MANUAL STATEMENTS THAT ARE NOT STRICTLY FOLLOWED MAY RESULT IN INJURY OR DEATH PERSONNEL WARNING
5. 1 3 1 4 2 E 1 3 1 4 2 1 1 4 1 4 2 2 SRT ELECTRONIC PARIS au maaa au aQ 1 4 1 4 2 3 MOTOREDUCER 5 4 1 5 1 5 FUNGTIONA DE SCR IPTIOIN 1 5 1 6 65 Sa sus 1 7 Chapter 2 OPERA HON 2 cep eee 2 1 2 1 INTRODUCTION 2 1 2 2 CONTROLS AND INDICATORS 2 1 2 3 SEMEOPERATIVE CONTROLS xou ptite 2 3 2 4 VO REQUIREMENT uu ua 2 5 2 5 NMEA TRANSFER PROTOCOL e ads Po E aa 2 7 2 5 1 ABBREVIATIONS LS un ai San au aa Sa 2 7 2 5 2 DATA TRANSMISSION FROM 0 110000000 2 8 2 5 3 DATA TRANSMISSION FROM TO RDC 0020200000000111 nennen 2 17 2 5 4 GENERAL NOTES EN 2 29 Chapter 3 Functional Description ee 3 31 3 1 l OD UGG 3 31 3 2 FUNCTIONAL DESCRIPTION uuu uu ua 3 31 3 2 1 ELECTRONICS RACK uu uyum
6. 6 4 6 2 3 2 GEARBOX 6 4 6 2 4 BRUSHLESS MOTOR CONTROLLER REPLACEMENT 6 5 6 2 5 MAGNETRON REPLACEMENT 6 5 6 2 6 RE HEAD REPLACEMENT v d l LUE 6 6 6 2 6 1 RF AMPLIFIER REPLACEMENT u usa L u u nnne nnne aa uu au nana 6 7 6 2 6 2 LIMITER AND NOISE DIODE REPLACEMENT 6 7 6 2 6 3 CIRCULATOR REPLACEMENT tow Soda 6 7 6 2 6 4 POWER DIODE REPLACEMENT etin bete rape nee ba bod edd 6 8 6 2 7 ELECTRONICS ASSEMBLY REPLACEMENT INSTALLATION 6 8 6 2 7 1 SRT CONTROL BOARD REPLACEMENT FIGURE 9 6 POS 2 6 9 988 10927 001 Rev 1 SRT X BAND RADAR SYSTEM INDEX 6 2 2 SRT MOS BOARD REPLACEMENT FIGURE 9 6 POS 6 9 6 2 7 3 SRT POWER BOARD REPLACEMENT FIGURE 9 6 POS 1 6 9 6 2 8 ENCODER REPLACEMENT iua y u Vd SS ca c vibe e 6 10 6 2 9 PERFORMANCE MONITOR REPLACEMENT a nennen 6 10 Chapter 7 1 7 1 INTRODUCTION aa adenine E uyana maaa 7 1 7 2 7 1 7 3 PARLBOCATIONAEEUSTRATIONS ________ 7 1 7 4 PART PIK
7. 1 2 TABLE 1 2 S CONPIGURATONS TABLE uuu au ___ ____ ________ 1 3 TABLE 13 PHYSICAL DESCRIPTION ________ _ 6 _ _6_6_____ 1 3 TABLE 1 4 SRT X BAND 12 KW AND 25 KW 1 4 SARF HEAD 1 5 TABLE 4 6 EEPEGIBONICSRBAGKu u uq unus u anon Qaqaqa aaa 1 5 TABLE 1 7 SRT X BAND RADAR SYSTEM TECHNICAL CHARACTERISTICS 1 9 TABLE 2 1 BEHAVIOUR LEDS IN SERIAL CONFIGURATIONZ 2 1 TABLE 2 2 BEHAVIOUR LEDS IN COMBINED VIDEO 2 2 TABLE 2 3 BEHAVIOUR LEDS ON SRT DOWN ADAPTER BOARD 2 2 TABLE 2 4 LED D3 SRT ADAPTER BOARD STATUS BLINKING 2 2 TABLE 2 5 BEHAVIOUR LEDS ON SRT POWER BOARD 2 3 TABLE 2 6 BEHAVIOUR LEDS ON BRUSHLESS MOTOR CONTROLLER BOARD 2 3 TABLE 2 7 SRT CONTROL BOARD JUMPERS aa xa 2 3 TABLE 2 8 SRT CONTROL BOARD TEST nnn 2 4 TABLE 2 9 SRT X BAND RADAR SYSTEM SEMI OPERATIVE CONTROLS 2 5 TABLE 2 10 S LO REQUIREMENTS u este 2 6 TABLE 4 1 LIST OF RECOMME
8. BRUSHLESS CONTROLLER BOARD m l Eds RF DETECTOR ASSY MAGNETRON 490060500005 NOISE DIODE CIRCULATOR SRT unit internal connection Figure 9 8 Rev 1 9 8 988 10927 001 SRT X BAND RADAR SYSTEM FIGURES PWON Speed LINE control 12 VT SRT POWER SRT CONTROL RF amplifier SPA SB2 Xy LPA HV OK Video HV STOP Tune SW Fil Fil ON V Fil lt lt m s m U U O O lt n o o lt gt lt o Figure 9 9 SHT unit internal voltage and signals 988 10927 001 9 9 Rev 1 988 10927 001 SRT X BAND RADAR SYSTEM FIGURES XTB2
9. Balanced Mixer Moni Monitor Out CKT 5 Vdc Figure 9 24 RF Head LNFE block diagram 988 10927 001 9 24 1 From To RF Detector 988 10927 001 RF in 20 dB DC DC Converter BP Filter 50 dB Variable Attenuator Level translator SRT X BAND RADAR SYSTEM FIGURES Logaritinc Amplifier Buffer Band Logaritinc selector Amplifier Figure 9 25 HF Head RF DETECTOR block diagram 9 25 Buffer 5191 Tune Out Video Out SWB1 SWB2 STC 5 Vdc Tune Voltage Monitor From To Control Rev 1 SRT X BAND RADAR SYSTEM FIGURES Main Power Green Led LM 7812 33035 Brushless Controller 3 X IR 2103 Half Bridge Driver E R 6 Power Mosfet S Motor Current Sensor Red Led Figure 9 26 Brushless controller functional block diagram 988 10927 001 9 26 Rev 1 SRT X BAND RADAR SYSTEM FIGURES 4 1 gt l k 1 lt au Ms _h T Figure 9 27 Electronic rack HF Head particular 988 10927 001 9 27 Rev 1 SRT X BAND RADAR SYSTEM FIGURES Figure 9 28 RF Head view Rev 1 9 28 988 10927 001 SRT X BAND RADAR SYSTEM FIGURES EL D cue p B xi T 4 7 t 1 1 gt OOO 4455 Figure 9 29 Electronic rack view 988 10927 001 9 29 Rev 1 SRT X BAND
10. SRT X BAND RADAR SYSTEM Figure 9 34 5 X BAND RADAR SYSTEM schematic block 988 10927 001 9 34 Rev 1 SRT X BAND RADAR SYSTEM FIGURES WK i Figure 9 35 RF amplifier limiter noise and power diode and circulator 988 10927 001 9 35 Rev 1 SRT X BAND RADAR SYSTEM FIGURES Figure 9 36 SRT ADAPTER BOX external view 988 10927 001 9 36 1 eee wes 2 x
11. Remove the main protective film and turn as in the picture the shield over the cable outer isolation 988 10927 001 8 12 Rev 1 SRT X BAND RADAR SYSTEM INSTALLATION Main Shield and inner shields handling Remove the metallic from each twisted pair cables and pass the 4 ground wires through the turned shield 0 35 cores Cut the core to the wanted length and dismantle the core for 10mm nsert and crimp the blue end terminal Note End terminal should always be used Double connection in one terminal yellow terminal 988 10927 001 8 13 Rev 1 SRT X BAND RADAR SYSTEM INSTALLATION Triple connection in one terminal grey terminal 1 5 and 2 5 cores Cutthe core to the wanted length and dismantle the core for 10mm Note End terminal should always be used 988 10927 001 8 14 Rev 1 SRT X BAND RADAR SYSTEM INSTALLATION RG coaxial cables Mechanical details of BNC connector PT UTITUR SS o BB Es the cable to the wanted length Dismantle the outer isolation of the RG coaxial cable without damaging the shield and put the related part of the BNC connector as below s Details related to the ring of the BNC connector Take back the shield on the ring and trim exceeding shield 988 10927 001 8 15 Rev 1 SRT X BAND RADAR SYSTEM INSTALLATION Dismantle the outer isolation of the
12. Status 1 1 Notes Command 1 1 Request for transmission of actual values 2 Initialization of values 3 Reset of values Command 2 Spare Command 3 Spare 2 Timers Integer value to pre set the operated time LSB 1s equal to 1 hour If Command 1 1 or Command 1 3 don t 988 10927 001 2 10 Rev 1 SRT X BAND RADAR SYSTEM SPECIAL DETECTION DIGITAL POTENTIOMETERS CONTROL PDPC a x x hh lt CR gt lt LF gt Potentiometer Increment signed value Potentiometer ID 2 R potentiometer value Request F potentiometer Factory preset else NULL A auto adjust Notes 5 Factory preset is available for latest versions Pot ID Potentiometer to be upgraded O PRE STC AMPLITUDE PRE STC SLOPE 2 P M OPEN 3 P M DISTANCE Power Level 4 TUNING INDICATION 5 TUNE OFFSET 6 NOISE DIODE CURRENT Increment or decrement to apply range 7 NEVER SEND 0 If A with pot id adjust only the correspondent Pot not yet If A without pot adjust all the auto adjustable Tune offset for now Sentence should be sent under operator request only Application of value is immediate but storage of this one not volatile memory will take place after 20 seconds from last change 1 from last DPC sentence reception 988 10927 001 2 11 1 SRT X BAND RADAR SYSTEM SPECIAL DETECTION AUTO CALIBRATION OF ANTENNA SPEED SPSPD a xx xx x
13. 24 VCO VDC Voltage Heater Voltage Each value of voltage 1s integer and millivolt 988 10927 001 2 26 Rev 1 SRT X BAND RADAR SYSTEM SPECIAL DETECTION ACCELEROMETERS PACC x X x X X X X X x x x x x hh lt CR gt lt LF gt Z Peak acceleration Y Peak acceleration X Peak acceleration Z Average Y Average X Average 0 PCB accelerometer 1 External accelerometer Peak Average Acceleration 15 an integer value in mg max 16000 16g measured one PACC transmission time REQUEST GENERIC DATA PRGD a a a hh hh lt CR gt lt LF gt Data packet in hex code 32 bytes MSB first sentence number total number of sentences Request code 988 10927 001 2 27 1 SRT X BAND RADAR SYSTEM SPECIAL DETECTION PRETRIGGER TRIGGER DELAY AND PRETRIGGER LENGTH PDLY xx xx xx hh lt CR gt lt LF gt Trigger Advance Delay in 20ns units Max value 1s 127 2 56 usec Pretrigger length in 10ns units Max value is 511 5 12 usec Min 48 480ns 1 to request values back Pretrigger Advance Delay 20ns units 988 10927 001 2 28 Rev 1 SRT X BAND RADAR SYSTEM SPECIAL DETECTION 2 5 4 General Notes Rates Data transmission rate to TXRX should be Sentence CO2 1 Hz normally or when 1 necessary Sentence SE2 SE3 when is necessary upgrade Sector Blanking Sentence TIM every time is necessary timers information or reset values Sentence DPC every time is necessary digital
14. On the Antenna shaft is mounted the ENCODER that generates the pulses used to determine the Antenna position Azimuth and the Heading Line 3 2 6 Optional Equipment SRT Adapter Box It is possible to connect TRTX units to the Radar Display with lengths of 300 m between To ensure adequate signal levels at this distances the SRT Adapter Box has been introduced The SRT Adapter Box has the following functions Ensure adequate Power supply level of 50 V for the TRTX even at long cable lengths A 480W AC DC power supply with universal input from 85VDC to 250 VDC is located on the right part of the box Safety switch location to interrupt the antenna rotation during maintenance The Adapter Box Board within the adapter box ensures correct signal buffering and adjustment of signal levels amplification compensating for cable losses Decode the combined video and if needed convert older types of protocol as Mastermate to new combined video protocol standards decoding logic extracts the serial data packets the trigger and bearing signals from the combined video and translated them in standard levels for example 232 422 for serial lines Figure 9 36 shows the SRT Adapter Box Board layout LED 09 is a dual red green LED When red the board receives from the display unit When green transmitting to the display unit LED 010 is also a dual red green LED When green there is a proper signal decoding is going on W
15. The personnel involved in troubleshooting procedures must be skilled technicians and must have a good knowledge of the equipment 5 1 4 Tools and Instruments For the execution of the troubleshooting procedures besides usual tools screwdrivers pliers etc refer to table 4 1 5 2 Troubleshooting Procedures 5 2 1 Safety Precautions WARNING SET THE SAFETY SWITCH TO OFF AND HANG TO IT A PLACARD READING WORK IN PROGRESS DO NOT SWITCH ON WARNING OPERATE WITH CARE ON THE TXRX UNIT BECAUSE OF HIGH VOLTAGES AND HIGH POWER 988 10927 001 5 1 Rev 1 SRT X BAND RADAR SYSTEM TROUBLESHOOTING 5 2 2 Troubleshooting operations The following table describes the failures that can be met during equipment functioning If another type of failure is met call the Consilium Service FAULT Firsrarim IA sasa TXRX does not turn on Transmitter can t be controlled Antenna data can t be controlled Transmitter performance is low Sector Blanking is not working Antenna does not rotate Antenna does notrotate There is no current to magnetron Transmitter does not generate RF Antenna rotates but rotation speed cannot be controlled Table 5 1 Main possible SRT X BAND RADAR SYSTEM failures REF POTENTIAL REMEDY CAUSE CHECK REMEDY Power supply is Check DL1 LED status and Connect the 50 VDC missing or polarity is measure voltage TB2 on SRT voltage to the inverted POWER board t
16. VFIL Magnetron Heather in accordance with selected Pulse and magnetron 3 2 1 3 SRT POWER Board Low Voltage Power Supply The H V P S Generator Circuits function see figure 9 14 is to generate the high voltage 700 V necessary to pulse transformer and to the Magnetron for the transmission pulse generation The signals used in this circuit are 50 VDC VMOD HVON from Gate Array of SRT Control Board LPA Long Pulse Adjustment MPA Medium Pulse Adjustment and SPA Short Pulse Adjustment from Gate Array of SRT Control Board HVSTOP from SRT MOS board 988 10927 001 3 32 Rev 1 SRT X BAND RADAR SYSTEM SPECIAL DETECTION The H V P S starts functioning when the signal output from the is active the signal is active when the signal HVON from the Gate Array of SRT Control Board is LOW this signal is forced to high inactive when o 3min period isn t yet passed since TXRX has been turned on is in standby mode o safety switch or interlock is open o 15V is s 14 gt 16V 6 3V is lt 5V 2 7V input voltage supply is over 40 VDC the signal HVSTOP is Low which disables the functioning of the circuit when the 15 ISO voltage is absent the HVPS Generator Circuit generates the correct high voltage value When the high voltage is generated the COMPARATOR sends to the Gate Array of the SRT Control board the signal HVOK and the red LED
17. duit Re po L Cotta u Ga D tad 3 32 3 2 1 1 SRT POWER BOARD uu ada ane 3 32 3 2 1 2 SRT POWER BOARD Low VOLTAGE POWER SUPPRLY 3 32 32 1 3 SRT POWER BOARD Low VOLTAGE POWER SUPPRLY 3 32 3 2 1 4 BOARD 3 33 3 2 1 5 BOARD ex sens 3 34 3 2 1 6 MICROPROCESSOR AND GATE 3 34 3 2 1 7 SYSTEM MONITOR FUNCTION ia ua de 3 37 3 2 1 8 PERFORMANCE MONITOR 58 20 3 37 3 2 1 9 INPUT AND OUTPUT INTERFACE 3 38 988 10927 001 Rev 1 SRT X BAND RADAR SYSTEM INDEX 3 2 1 10 AZIMUTH AZ AND HEADING LINE HL SIGNAL CIRCUIT GENERATOR 3 38 3 2 2 Dua 3 38 3 2 3 BRUSHLESS MOTOR CONTROLLER BOARD 3 39 3 2 4 MOTOR UNIT O 3 39 3 2 5 ENCOD 3 40 3 2 6 OPTIONAL EQUIPMENT SRT ADAPTER BOX 3 40 3 2 7 OPTIONAL EQUIPMENT 3 41 Chapter 4 PREVENTIVE 4 1 4 1 IN
18. 1 for BMD types 988 10927 001 2 22 1 SRT X BAND RADAR SYSTEM SPECIAL DETECTION AUTO CALIBRATION OF ANTENNA SPEED SPSPD xx xx xx hh lt CR gt lt LF gt value In rpm ol fast antenna speed value in rpm of medium antenna speed value in rpm of slow antenna speed Empty field 988 10927 001 2 23 Rev 1 SRT X BAND RADAR SYSTEM SPECIAL DETECTION NOT ACKNOWLEDGE COMMAND SPNAC x aaa xx xx hh lt CR gt lt LF gt Wrong field 3 Error Code 2 Refused Sentence if recognized 1 Transceiver Number as sentence STS or NULL in stand alone TX RX Notes 1 See list of accepted 2 Numeric value 0 to 99 command dependent see list below Field number Incremental from 1 after sentence code Es 1 PNAC 2 COP 01 05 hh lt CR gt lt LF gt Meaning feedback on error inside COP command for transceiver 2 through TXRX Interface error type 01 field 05 wrong JITTER field Es 2 PNAC COP 01 37 hh lt CR gt lt LF gt Meaning same feedback error directly from TXRX 988 10927 001 2 24 Rev 1 SRT X BAND RADAR SYSTEM SPECIAL DETECTION HEALTH SENTENCE 2 hh lt CR gt lt LE gt External trigger Test test test INTERLOCK test FE MONITOR test 15VDC Voltage test 15150 Voltage test 15 VDC Voltage test Line Input 24 50v Voltage test LINK flag 3 CRC
19. BE Bg 00 5953 e 6 zi mu D22 R227 O08 60702102 dew 000000 J20 VTEST O CJ R65 DID Re6 5 00 00558 c sp cao R228 mnm 05 i rag BB Sys ons zs 3 EB S285 3 boe o i 3 26 un 28 R9 pg 3 0 RA 5 in E3 c3 Io Joe ed ico 045 C53 Dm C3 lo Geo cx 5 88 PWON Bab B E m 2 85 m h c73 5 00 R103 R102 OOOOO OOOOO 5 5 TRPUSH Figure 9 17 SRT CONTROL board block diagram 9 17 Rev 1 SRT X BAND RADAR SYSTEM FIGURES Figure 9 18 SRT CONTROL board internal block 988 10927 001 9 18 Rev 1 SRT X BAND RADAR SYSTEM FIGURES Debug Communication EEPPom Interface SERIAL Adopter DIGITAL Pai D i lr C From internal Pi Lene r Monitor PW Leve lun OF To Output Inteface p 24 VCO N r l2 Vi 15 e From internal 15V checking 5V 3 0 RG APA V Fil 1
20. BOARD NUMBER CODE FREQUENCY FUNCTION It indicates the DL Green ON presence of the 50 Brushless VDC power supply 304427A1 10191 Motor OFF controller DL2 protection Controller Table 2 6 Behaviour LEDs on Brushless Motor Controller board board 2 3 Semi operative controls Some semi automatic controls test points and jumpers are listed in this paragraph useful to the operator for carry immediate checks of the machine and verify the correct functioning Opening the transceiver front panel there is the possibility of carrying out certain types of checks These controls are summarized in the tables below and subdivided on the basis of the boards on which they are located NOTE When SHT X BAND RADAH SYSTEM front cover is opened interlock is OPEN and interrupts the transmission and disables the SRT MOS board high voltage requires JUMPER LIST NAME OPEN CLOSE J7 Serial mode transmission Video combined mode transmission Warmup counts 3 minutes before J8 ON Warmup counts 0 minutes transmission J10 Is not possible load the boot processor Is possible load the boot processor J21 When is two noise diodes When is one noise diode Table 2 7 SRT CONTROL board jumpers 988 10927 001 2 3 Rev 1 SRT X BAND RADAR SYSTEM SPECIAL DETECTION This jumper must always be open to allow the three minute warmup This time allows the magnetron to come up to temperature The transaction
21. Feedback from SRT MOS board for 15lso presence Magnetron transmission current Links for the board configuration 4 bit for the selector position Transmission Trigger Serial Gate Array management signals Pre trigger for the STC generation Serial reception of the combined video Bit DBO DB of the Data Bus Power supply line absence Video data Reception Transmission Interrupt 10 MHz clock Digital potentiometer chip select Digital potentiometer control signals Magnetron filament voltage control signals Antenna switch on signal HVPS circuit control signals HVPS circuit switch on signals Signals for the control of the NIFB bands Trigger PUSH for the transmission pulse generation Trigger PULL for the transmission pulse generation continue 3 36 Rev 1 SRT X BAND RADAR SYSTEM SPECIAL DETECTION TR Out Trigger for the display IGSTC Gate for the STC signal generation TXCOMB Serial transmission of the combined video DIS TX Disabling for the combined transmission on the video TUNEN and TUNEN Tuning detectors at transmission frequency PM Out SCK SO Serial Gate Array management signals Gate Array pulse length generator The Pulse Length Generator Function see figure 9 21 provides the length of the generated pulse in accordance with the previous selections This function is performed by the Gate Array which generates the signals TRPS and TRPL when the signal TR is active signal
22. IN THIS OPERATING OR MAINTENANCE MANUAL STATEMENTS THAT ARE NOT STRICTLY FOLLOWED MAY RESULT IN DESTRUCTION OR DAMAGE TO UNIT OR LOSS OF EMISSION EFFECTIVENESS WARNING WARNING SHOW AND PRECEDE ESSENTIAL MAINTENANCE PROCEDURES CONDITION AND STATEMENT WHICH MUST BE HIGHLIGHTED WARNING USE EXTREME CARE WHEN WORKING ON THE UNIT ONCE THE COVER HAS BEEN OPENED THE MAGNETRON OPERATES AT HIGH VOLTAGES THAT MAY CAUSE FATAL INJURIES WARNING ON THE ELECTRIC SWITCHBOARD SET TO OFF THE POWER BREAKER DEDICATED TO THE PRESENT EQUIPMENT AND HANG TO IT A PLACARD READING WORK IN PROGRESS DO NOT SWITCH WARNING SET MAIN LINE BREAKER TO OFF BEFORE REPLACING ANY FUSE FUSES ARE UNDER VO LTAGE LEVELS WHICH MAY PROVE FATAL 988 10927 001 7 1 SRT X BAND RADAR SYSTEM SOFTWARE REVISION Safety precautions Safety precautions described in this paragraph are applicable to SRT X BAND RADAR SYSTEM The following are general safety precautions that are not related to any specific procedure and therefore do not appear elsewhere in this technical manual These are recommended precautions that personnel must understand and apply during most phases of operation and maintenance You are obliged to read these operating instructions prior to operation and to adhere to the operating instructions in operation in order to prevent possible danger Prevention of danger includes that operator personnel are trained and author
23. one on portside and one on starboard side antenna base grip iron stems for location of noles ses drawing relative io each antenna uni NOTE this type ot pole masi wih rings should oniy be used for heignts up To A meters rorwarc ff NOTE are in millimeters Figure 8 2 Suggested antenna mounting The following formula and drawing as illustrated in Figure 8 3 and 8 4 will help you to determine the correct distance and height between the two radar antennas The 45 angle on the drawing is the actual vertical beam width with a safety margin included Example H where H height between the two antennas L the distance between the two antennas If the distance L is 6m then the height should 2m 988 10927 001 8 4 Rev 1 SRT X BAND RADAR SYSTEM INSTALLATION E _ Glare angle lt 45 Distance gt 1 S ME Figure 8 3 Antenna angle S Band Antenna Group Group IMPORTANT H gt Figure 8 4 Antenna position Blind sectors towards the bow and within a few degrees on port and or starboard side caused by the structure of the ship must be avoided with great care In case of a blind sector at the bow in middle ship position it is advisable to mount the antennas on the starboard side of the ship keel line When ob
24. outside 10 Nominal Rotation speed RPM gt 20 Nominal Wind resistance KT continue 988 10927 001 1 8 Rev 1 SRT X BAND RADAR SYSTEM DESCRIPTIONS AND MAIN CHARACTERISTICS X BAND TRANSCEIVER TECHNICAL SPECIFICATION Transceiver I N SRT 25 002 Operating frequency MHz 9410 30 X Band Pulse length nsec PRF Hz 3000 1500 750 Modulator MOSFET Solid state IF amplifier IF dynamic dB 100 30 pre STC Logarithmic IF center frequency MHz IF bandwidth MHZ short pulse medium pulse g p long pulse Overall noise figure nominal dB MDS on long pulse dBm IA K HA AN lt 100 110 Overall at receiver level At IF level ENVIRONMENTAL FEATURES lA 25 C 55 As in IEC 60945 25 70 Asin IEC 60945 Up to 95 at 40 As for IEC 60945 As for IEC 60945 Operating temperature Storage temperature Relative humidity Vibrations Protection grade Wind resistance KT DIMENSIONS mm Width Depth Height WEIGHT kg e O O 4 cO Pedestal with Transceiver REQUIRED POWER SUPPLY Standard configuration 24 VDC or 115 220 VAC Power consumption Ca 350 W Peak at maximum wind load OPTIONS Different PRF set Upon Customer request Heaters For very cold environments lt 25 C Table 1 7 SRT X BAND RADAR SYSTEM technical characteristics 988 10927 001 1 9 Rev
25. pos 2 Remove four Torx screws Figure 9 6 pos 5 and disconnect the cabling connectors taking note of their position 6 2 7 2 SRT MOS board replacement Figure 9 6 pos 3 Remove seven Torx screws Figure 9 6 pos 6 and disconnect the cabling connectors taking note of their position 6 2 7 3 SRT POWER board replacement Figure 9 6 pos 1 Remove eleven Torx screws Figure 9 6 pos 7 and disconnect the cabling connectors taking note of their position Installation Before installing the new electronics assembly remove the EEPROM U18 from the old SRT CONTROL board and replace it in new SRT CONTROL board If this operation is skipped then the unit must be set up manually from blank to recover values and settings stored in the old board EEPROM In order to install the electronics rack perform the removal operations in reverse order SRT CONTROL J4 BNC video signal output SRT CONTROL P2 Terminal board for the signal to from the DISPLAY UNIT SRT CONTROL TB1 Safety switch input SRT CONTROL J12 Cable for the encoder connection SRT CONTROL J1 Small BNC video signal input SRT CONTROL J2 Small BNC tune signal input SRT CONTROL 1 RF amplifier controls SRT CONTROL TB3 Terminal board for brushless motor controller SRT POWER TB2 Main ower input SRT MOS A K Fil Magnetron terminals Table 6 3 Electronic rack connectors WARNING WHEN THE ELECTRONICS RACK IS INSERTED ON THE FIXING BOLTS PAY A
26. pos 5 cables taking note of their disposition By means of the proper socket wrench unscrew the four screws pos 9 fixing the brushless motor controller to the mechanical frame Remove the brushless motor controller Installation Check for the integrity of the new brushless motor controller In order to install the brushless motor controller perform the removal operations in reverse order without closing the cover Close the cover following the procedures of paragraph 6 2 2 6 2 5 Magnetron replacement a Required tools Set of screwdrivers Set of allen wrenches with ends ball Set of combination wrenches Set of Torx wrenches Set T Handle wrenches with swiveling hexagon sockets Set T Handle wrenches with swiveling hexagonal sockets Silicone grease compound 340 b Removal 1 On the electric switch board set to OFF the main line breaker relevant to the unit and hang to it a placard reading WORK IN PROGRESS DO NOT SWITCH 988 10927 001 6 5 Rev 1 SRT X BAND RADAR SYSTEM CORRECTIVE MAINTENANCE By following the procedures of paragraph 6 2 2 open SRT unit cover Unscrew the four bolts holding protection shield Figure 9 6 pos 4 By means of the proper screwdriver remove the magnetron wires from the terminal Figure 9 15 pos 1 tacking note of their disposition o unplug yellow and green cables loosing the two bolts o unplug the yellow and green earth cable By performing the operat
27. 1 SRT X BAND RADAR SYSTEM DESCRIPTIONS AND MAIN CHARACTERISTICS This paqe is intentionally left blank 988 10927 001 1 10 Rev 1 SRT X BAND RADAR SYSTEM SPECIAL DETECTION CHAPTER 2 OPERATION 2 1 Introduction This chapter provides operating instructions information and procedures required in order to enable operating personnel to efficiently and effectively operate the SRT X BAND RADAR SYSTEM The unit does not require personnel on steady watch conditions but requires general monitoring during normal operating situations 2 2 Controls and indicators The various types of LED visible by the operator at the moment of disassembling the front panel of SRT X BAND RADAR SYSTEM are listed in this paragraph The tables below show in order board in which they are positioned board part number LED code LED coloration of frequency illumination brief description of their function NOTE Regarding the location of the LEDs Test Points and Jumpers that will be described refer to the electrical diagrams and images shown in chapter 9 PART BOARD NUMBER CODE FREQUENCY FUNCTION slow Transmitter is OK d ice 973281A2 D23 On off normal Transceiver S transmitting Combined video or serial configurations is determined by settings the Jump J10 Table 2 1 Behaviour LEDs in serial configuration PART BOARD NUMBER CODE FREQUENCY FUNCTION board Gradually slow D Green i Transmit
28. 1 with proper Torx wrenches 3 Remove RF amplifier 6 2 6 2 Limiter and noise diode replacement 1 By performing the operations of paragraph 6 2 6 point b remove the RF Head after that the RF amplifier 2 Holding the limiter Figure 9 28 pos 2 and noise diode pos 3 remove four screws Figure 9 35 pos 2 with proper wrenches holding three bolts pos 3 3 Remove the limiter and the noise diode 6 2 6 3 Circulator replacement 1 By performing the operations of paragraph 6 2 6 point b remove the RF Head after that the RF amplifier limiter and diode noise By performing the operations of paragraph 6 2 5 remove the magnetron Holding the circulator Figure 9 28 pos 4 remove four screws Figure 9 35 pos 4 with proper wrenches 4 Remove the circulator 988 10927 001 6 7 1 SRT X BAND RADAR SYSTEM CORRECTIVE MAINTENANCE 6 2 6 4 Power diode replacement By performing the operations of paragraph 6 2 6 point b remove the RF Head Holding the RF Head remove four screws Figure 9 35 pos 4 with proper wrenches Remove the power diode Installation Check for the integrity of the new part installed In order to install the new part perform the removal operations in reverse order without closing the SRT cover By following the display technical manual procedures perform the VCO calibration Close the pedestal cover following the procedures of paragraph 6 2 2 6 2 7 Electronics assemb
29. 9 11 FIGURE 9 12 SRT POWER BOARD PROTECTION 9 12 FIGURE 9 13 SRT POWER BOARD LVPS CIRCUIT 9 13 FIGURE 9 14 SRT POWER BOARD CIRCUIT 9 14 FIGURE 915 e SIR PIMOS BOARD iens s save ann Renta 9 15 FIGURE 9 16 SRT MOS BOARD BLOCK DIAGRAM nnn nnn nennen nnn nnn nnne 9 16 FIGURE 9 17 SRT CONTROL BOARD BLOCK DIAGRAM esee 9 17 FIGURE 9 18 CONTROL BOARD INTERNAL BLOCK 1 1 2 1 2 2 6 enne nnns 9 18 FIGURE 9 19 SRT CONTROL BOARD MICROPROCESSOR AND GATE ARRAY 9 19 FIGURE 9 20 SRT CONTROL BOARD INPUT INTERFACE nnne nnn nnn nnn 9 20 FIGURE 9 21 SRT CONTROL BOARD OUTPUT nnn 9 21 FIGURE 9 22 CONROL BOARD MONITOR nennen nnn nnns rn nnns 9 22 FIGURE 9 23 RF HEAD FUNCTIONAL BLOCK DIAGRAM 41424442222222 00000 000000 9 23 FIGURE 9 24 RF HEAD LNFE BLOCK 9 24 FIGURE 9 25 RF HEAD RF DETECTOR BLOCK DIAGRAM 9 25 FIGURE 9 26 BRUSHLESS CONTROLLER FUNCTIONAL BLOCK
30. HVOK is low 50 MHz clock is present the signal RESET is high the signal LINE is true the signal SLK is high signal ANTBLK is high Main Line 2 40VDC The signals TRPS and TRPL are applied to the DRIVER which generates the signals TRPUSH and TRPULL for the Pulse Generator circuit of the SRT Mos Board d System monitor functions System state monitor see figure 9 22 is performed by this unit Unit is composed of Voltage Monitor Temperature Monitor SLK Safety switch Voltage monitor performs monitoring of power supply voltage level It receives its inputs from the Voltage sensor of the SRT Power Board Temperature monitor detects temperature value to be processed by the microprocessor In case of high value the microprocessor generates the signals for switching the fan on through the Gate Array SLK is a signal from switch that disables transmission and antenna rotation when the apparatus cover is open Safety switch disables the radar unit from hazardous power supply The safety switch must be operated when radar unit is under maintenance to prevent high voltage hazard for operators 3 2 1 8 Performance monitor functions The Performance Monitor s function is to monitor Transmission Power Tuning and Noise Figure in order to result in a Noise Ring presentation on PPI and for to have the peak power value on TXRX DATA 988 10927 001 3 37 Rev 1 SRT X BAND RADAR SYSTEM SPECIAL DETECTIO
31. Input interface of the SRT Control board receives input signals from SRT Power SRT MOS RF Detector Safety Switch interlock and forwards them to the microprocessor and to the gate array Signal conditioning and level shifting operation is accomplished by buffers level translators and peak hold devices Azimuth AZ in and Heading Line HL in input signals are processed as well and forwarded to the microprocessor and the gate array AZ HL The Output interface forwards processed signals from Gate Array RF Detector Safety Switch and from the TX pin of the microprocessor to the Display the RF detector and the brushless motor controller board 3 2 1 10 Azimuth AZ and Heading Line HL Signal Circuit Generator The Antenna Unit must constantly forward its Azimuth position and Heading Line to the Display Unit The function of this circuit see figure 9 8 is to process the incoming signals AZIN and HLIN and forward them to the Microprocessor The output signal AZOUT and HLOUT are used on the Display Unit 3 2 2 RF Head The RF Head see figure 9 23 is composed of a solid state controlled MAGNETRON stage connected to a small size ISOLATOR then a CIRCULATOR and the NOISE DIODE block ending with a flange to be connected to waveguide in order to transfer the RF PULSE to the FILTER ASSY composed by two in line pass band filters and a shim to filter out spurious frequency emissions From here the pulse pass through a short waveguide up to
32. RADAR SYSTEM FIGURES Figure 9 31 Rotary joint 988 10927 001 9 31 1 SRT X BAND RADAR SYSTEM FIGURES 1909 SIA dW 11 151 eec 4 P 65 ed a 4 t 4 LA gt gt gt m 4 4 sve E EI EI LE EIL LI LII LI LI LII lt w EC L ded d 45 r 2 P E 41 Figure 9 32 Brushless motor controller 988 10927 001 9 32 1 SRT X BAND RADAR SYSTEM FIGURES ANTENNA LENGTH SWING CIRCLE 6 ft 1800 9 ft 2650 12 ft 3618 cO g D 2 Antenna fixing bolts 17 threaded bolts ez 4 8 tighten to 22Nm EL I3 T 1i ze FORWARD 1 Installation Connector Grounding Bolt et N 4 Studs M12 804 146 200 458 43 7 MOUNTING VIEW WEIGHT UNT P SRT amp Antenna 6 Ft 68 EE 66 _ SRT amp Antenna 9 Ft SRT amp Antenna 12 Ft Figure 9 33 SRT X BAND RADAR SYSTEM layout 988 10927 001 9 33 Rev 1 SRT X BAND RADAR SYSTEM FIGURES I DATA RADAR DATA X BAND ELECTRONICS Video Trigger Azimuth Head
33. RADAR SYSTEM 9 P 8000 h PERSONNEL REQUIRED INSTRUMENTS REQUIRED TIME Set of screwdrivers set of socket hexagonal 1JT wrenches set of Torx screwdrivers silicone 30 minutes grease SAFETY PRECAUTIONS On the electric switchboard set to OFF the power breaker relevant to the unit and hang to placard reading IN PROGRESS DO NOT SWITCH STEP SEQUENCE OF OPERATIONS 1 By following the procedures of paragraph 6 2 2 open SRT unit cover NO Unscrew the four bolts holding protection shield Figure 9 6 pos 4 By means of the proper screwdriver remove the magnetron wires from the terminal Figure 9 15 pos 1 tacking note of their disposition unplug yellow and green cables loosing the two bolts unplug the yellow and green earth cable By performing the operations of paragraph 6 2 9 remove electronics assembly By performing the operations of paragraph 6 2 8 remove the RF Head By means of the proper screwdriver remove the four Torx screws Figure 9 27 pos 2 fixing the magnetron Remove the Magnetron Before fastening the Magnetron to the proper seat spread a layer of silicone grease on Magnetron surface which is in contact with the alloy in order to increase the Magnetron heating surface dissipation In order to install the new Magnetron perform the removal operations in reverse order WARNING IN ORDER TO PREVENT ANY ACCIDENTAL ROTATION OF THE AN
34. Rotary Joint connected to the Antenna for it to be radiated The opposite end of the CIRCULATOR is fitted with the LIMITER the RF Amplifier L N F E RF Detector L N F E Low Noise and Front End is composed of the IMAGE REJECTION FILTER the LOW NOISE AMPLIFIER two BALANCED MIXER and the LOCAL OSCILLATOR RF Detector is the final amplification stage and it is of the logarithmic kind The RF Head is designed to generate RF pulses in the X Band range up 25 kW and to receive echo from targets 988 10927 001 3 38 Rev 1 SRT X BAND RADAR SYSTEM SPECIAL DETECTION During transmission time the MAGNETRON receives a high voltage trigger pulse whose length short medium long is determined by the operator settings on Display and generates high power RF pulses in the X Band range until the high voltage pulse is applied to its cathode The RF energy generated is sent to the CIRCULATOR and from this to the waveguide which delivers the energy for the radiating Antenna The CIRCULATOR is a 3 way microwave device used either as a RF switch or to send the transmission pulses to the Antenna or to apply the received echoes to the Receiver The second function carried out by the RF HEAD unit is to convert the receiving R F energy reflected from targets into intermediate frequency I F and amplify it This is provided by the R F HEAD block mainly consisting of Limiter Circulator Noise Diode Power Diode Integrated R
35. centre core without damaging the centre core and be sure that the shield is not shorted with the centre core Solder the centre core with BNC pin Be careful not damage the isolation i e burned during the solder process Mountthe BNC connector as below 988 10927 001 8 16 Rev 1 988 10927 001 SRT X BAND RADAR SYSTEM FIGURES CHAPTER 9 FIGURES A f d ii n 4 im mmy I WA E TO Figure 9 1 SRT X BAND RADAR SYSTEM general view Rev 1 988 10927 001 SRT X BAND RADAR SYSTEM FIGURES Figure 9 2 SRT X BAND RADAR SYSTEM external view 9 2 Rev 1 SRT X BAND RADAR SYSTEM FIGURES Figure 9 3 SRT X BAND RADAR SYSTEM with PM arm 988 10927 001 9 3 1 SRT X BAND RADAR SYSTEM FIGURES M WAS x Si x Figure 9 4 5 RADAR SYSTEM view 988 10927 001 9 4 Rev 1 SRT X BAND RADAR SYSTEM FIGURES Figure 9 6 Electronics rack 988 10927 001 9 6 1 SRT X BAND RADAR SYSTEM FIGURES Speed Brushless Controls lt gt ENCODER SRT CONTROL SRTPOWER RF Head SRT MOS gt Figure 9 7 SRT unit functional block diagram 6 feet antenna S 988 10927 001 9 7 Rev 1 SRT X BAND RADAR SYSTEM FIGURES
36. controller Replace the brushless missing enable signals are present motor controller Disconnect 700 V cable from TB3 of SRT POWER board disconnect 1 Modulator is damaged motor cables turn 1 on SRT CONTROL board on position 3 and make sure DL3 is off Replace SRT MOS board Brushless motor 15 controller is not enabled properly Check brushless motor controller Replace SRT CONTROL signals board 12 Motor power supply 1 Check brushless if motor controller Replace SRT Control missing enable signals are missing board Table 5 2 Main possible SRT X BAND RADAR SYSTEM remedy 988 10927 001 5 3 Rev 1 SRT X BAND RADAR SYSTEM TROUBLESHOOTING This paqe is intentionally left blank 988 10927 001 5 4 Rev 1 SRT X BAND RADAR SYSTEM CORRECTIVE MAINTENANCE CHAPTER 6 CORRECTIVE MAINTENANCE 6 1 Introduction This chapter provides the necessary information to execute the corrective maintenance operations which must be carried out in order to ensure SRT X BAND RADAR SYSTEM correct functioning according to the troubleshooting procedures of chapter 5 Obviously the replace operations will only be described for the parts that can be supplied as spare parts refer to chapter 7 6 1 1 Safety precautions If not otherwise specified in the procedures during corrective maintenance operations the following safety rules must be observed each maintenance operation must be carried out only after the
37. equipment has been switched OFF WARNING SET TO OFF THE MAIN BREAKER OF THE EQUIPMENT AND HANG TO IT A PLACARD READING WORK IN PROGRESS DO NOT SWITCH ON before removing any component be sure the spare part is available verify the integrity of the spare part and if possible perform a functional test 6 1 2 Personnel The replacement operations must be carried out by skilled personnel with a good knowledge of the equipment 6 1 3 Required tools and instruments To carry out the replacement operations described in this chapter only normal workshop tools as screwdrivers wrenches etc are required 988 10927 001 6 1 Rev 1 SRT X BAND RADAR SYSTEM CORRECTIVE MAINTENANCE The tools required to perform troubleshooting operations are listed in the following table Set of screwdrivers Set of communication tools Set of socket wrenches Electric solder iron Set of socket Torx Vacuum cleaner Set T handle wrenches with ere Digital multimeter swivelling hexagon sockets Set of hexagonal wrenches Oscilloscope Set of allen wrenches with end ball swivelling hexagonal sockets Set of Torx wrenches Circlip pliers Table 6 1 List of recommended tools and instruments 6 2 Corrective Maintenance Procedures This paragraph provides detailed description of operations to be carried out in order to replace a damaged component for SRT X BAND RADAR SYSTEM PARAGRAPH COMPONENT TO BE REPL
38. 10927 001 2 30 Rev 1 SRT X BAND RADAR SYSTEM SPECIAL DETECTION CHAPTER 3 FUNCTIONAL DESCRIPTION 3 1 Introduction The present chapter provides the functional and detailed description of the main functions and operations performed by the SRT X BAND RADAR SYSTEM Functional diagrams are used to depict signal processing whilst the text is used to support diagrams as necessary for explanation purposes Functional block diagrams show the development of a function from input to output in detail Main assemblies and subassemblies modules and cards are shown and identified by code name and part number P N Hardware blocks are used in the signal paths to describe the processing functions performed For a better understanding the signal functions on circuit blocks are tagged by letters whose meanings are described in the list of abbreviations see table 1 1 Signal flows are mainly laid down from left to right and from top to bottom therefore subassemblies can be illustrated more than once to ensure logical signal flow Signals on functional block diagram appear with their official code name as indicated on the manufacturer electric schematic diagrams and tabular interconnection lists Comments for explanation purpose on signal paths are within parenthesis this sometimes identifies their operational accomplishment Timing diagrams and word code bit structure figures are also given as necessary for a better understanding of the described
39. 128 aligned to HL The speed is calculated in the last 16 scans Motor Torque angle 128 values packed in 4 packets Every number represents motor torque expressed Nm at the antenna for every 360 128 aligned to HL The torque is calculated in the last 16 scans Acceleration spectrogram for X axis PCB Accelerometer 64 values of acceleration with resolution 50 64 Hz integrated in the last 60 seconds _ 988 10927 001 2 16 Rev 1 SRT X BAND RADAR SYSTEM SPECIAL DETECTION 2 5 3 Data Transmission from TXRX to RDC STATUS SENTENCE 2 PST2 x a aa aaa a a a a a hh a a a hh lt CR gt lt LF Protocol Version Starting from 4 Empty Field Heater W warm C cold NULL N A A Automatic Tuning ON else NULL OFF Manual Tuning Adjust If Automatic NULL Don t care P Performance Monitor Available else NULL N A S Service Mode Auto Adjust else NULL OFF W Warm Up R Ready X X Band S S Band Transceiver J Jitter ON else NULL OFF Rxx Antenna Rotating ON with xx RPM 01 60 else NULL OFF Transceiver status M Acknowledge Master S Slave 2 Transceiver Number Notes 1 Transceiver Number 1 2 3 4 NULL in stand alone TXRX 2 Master Slave acknowledge NULL in stand alone TXRX 4 to be used only for release a warning message 3 Transceiver status SB ___ StandBy SH ______ Short pulse High fre
40. 3 Fixed HEX field Fixed length HEX number only MSB on the left Variable length valid character field Fixed alpha field m Fixed length field of upper case or lower case alpha characters Fixed number field Fixed length field of numeric characters Fixed text field Fixed length of valid characters NOTE Spaces shall only be used in variable text fields NOTE 2 A negative SIGN HEX 2D is the first character a field if the value is negative When used this increases the specified size of fixed length fields by one The sign is omitted if the value is positive 988 10927 001 2 7 Rev 1 SRT X BAND RADAR SYSTEM SPECIAL DETECTION 2 5 2 Data Transmission from RDC to TXRX OPERATIONAL CONTROLSENTENCE PCO2 x a aa aaa a a a a hh a hh lt CR gt lt LF gt L Heater W warm cold else NULL AUTO Tuning adjust min If Automatic don t M Manual Tuning A Automatic Tuning V Video test else NULL OFF P Performance Monitor ON NULL OFF J Jitter ON NULL OFF Antenna Rotating ON with xx 01 80 else NULL OFF control M Request Master of Transceiver 5 Slave 2 Selected Transceiver Number 1 Notes Transceiver Number 1 2 3 4 SPARE in stand alone TXRX 2 Master Slave request SPARE in stand alone TXRX and single equipments Transceiver control SB o Stand By
41. 3 pos 3 1 4 2 3 Motoreducer assembly The Motoreducer assembly is composed of see figure 9 5 Motor Unit pos 1 whose function is to provide the necessary power to produce Antenna rotation Gearbox pos 2 whose function is to reduce the motor angular speed the final gear pos 3 whose function is to transmit through the rotating wheel the motion provided by the Gearbox to the Antenna the Encoder see figure 9 30 pos 2 whose function is is to increase the angular resolution of the azimuth and heading signal to 128 1024 4096 pulses for revolution the Rotary Joint see figure 9 31 pos 1 whose function is to connect the Waveguide of the Antenna to the internal one The Motoreducer assembly is connected to the Brushless Controller by means of a cables provided with connectors for the Electric Motor supply 1 5 Functional description The SRT 25 kW X BAND Radar System is divided mainly into Receiver and Transmitter sections both connected to a solid state controlled modular RF HEAD The Transmitter generates the RF energy in the X Band range and pulses modulated with a nominal peak power of 25 kW The length and PRF of the pulses are in accordance with the 988 10927 001 1 5 Rev 1 SRT X BAND RADAR SYSTEM DESCRIPTIONS AND MAIN CHARACTERISTICS range scale selected on the Display Unit The transmission pulses can be Short Medium and Long The Receiver enables reception of echo
42. A E 7 2 Chapter 8 INSTALLATION 8 1 8 1 151 8 1 8 1 1 SHRP m 8 1 8 1 2 8 1 8 1 3 8 1 8 1 4 8 2 8 2 DISTADMATION ard ASAS A 8 3 8 3 MECHANICAL INSTALLATIONS Re ota ER RR Pe anus 8 6 8 3 1 SRT X BAND RADAR SYSTEM acini nap uta ESI 8 6 8 3 2 ANTENNA pto 8 7 8 3 3 SAFETY SWITCH TEN 8 8 8 3 4 PERFORMANCE MONITOR ARM aa aaa aaa 8 8 8 4 ELECTRICAL INS EAHEATION uu lalu 8 8 8 4 1 MULTICORE CABDES inris eS AP um A uuu 8 8 8 4 1 8 9 8 4 2 SUETON tos MD 8 9 8 5 SYSTEM uuu au HQ S 8 10 8 5 1 SHP POWER VOLTA GE E Suv bunc tad a cS 8 10 8 5 2 COMPASS SAFE DISTANCE 8 10 8 6 MULTICORE CABLING AND TERMINATION PRINCIPLE 8 11 8 6 1 INSTALLATION INST RUG sn vd cR Erb Ce SO PH 8 11 9 1 988 10927 001 III Rev 1 SRT X BAND RADAR SYSTEM INDEX TABLES LIST TABLE Tsee OEASDBREVIATIONEuu u uu k u
43. ACED Table 6 2 List of component to be replaced 988 10927 001 6 2 Rev 1 SRT X BAND RADAR SYSTEM CORRECTIVE MAINTENANCE 6 2 1 Antenna replacement a b c 1 2 Required tools Set of combination wrenches Set of screwdrivers Set of socket wrenches Removal On the electric switch board set to OFF the main line breaker relevant to the unit and hang to it a placard reading WORK IN PROGRESS DO NOT SWITCH Using the proper open wrench loose and remove the bolts Figure 9 2 pos 2 fixing the antenna pos 3 to the pedestal pos 1 Installation Check for the integrity of the new antenna In order to install the antenna perform the removal operations in reverse order 6 2 2 Opening Closing of the TXRX Cover a Required tools Set of hexagonal wrenches Silicone grease compound 340 b Opening 1 On the electric switch board set to OFF the main line breaker relevant to the unit and hang to it a placard reading WWORK IN PROGRESS DO NOT SWITCH ON 2 hands rotate the antenna Figure 9 2 pos orthogonally with respect to the cover opening direction as shown in Figure 9 1 3 Unscrew the four screws Figure 9 4 pos 1 locking the cover pos 2 and open the former c Closing 1 Check for the integrity of the cover seal pos 3 and eventually replace it 2 Unlock the cover by releasing the locking device and close the cover 3 Grease the fasteni
44. ARGUS RADAR SCANNER CE Technical User Manual ENGLISH PRO SIMRAD YACHTING COM SRT X BAND RADAR SYSTEM FOREWORD RECORD OF CHANGES CHANGE CHANGE RCS CODE REV INDEX DATE PURPOSE REQUESTED BY Revision 1 February 2015 CR 64773 988 10927 001 1 SRT X BAND RADAR SYSTEM FOREWORD This paqe is intentionally left blank 988 10927 001 B Rev 1 988 10927 001 Chapter 1 Chapter 2 Chapter 3 Chapter 4 Chapter 5 Chapter 6 Chapter 7 Chapter 8 Chapter 9 SRT X BAND RADAR SYSTEM FOREWORD OVERVIEW OF CHAPTERS WARNING DESCRIPTIONS AND MAIN CHARACTERISTICS OPERATION FUNCTIONAL DESCRIPTION PREVENTIVE MAINTENANCE TROUBLESHOOTING CORRECTIVE MAINTENANCE PART LIST INSTALLATION FIGURES Rev 1 SRT X BAND RADAR SYSTEM FOREWORD This paqe is intentionally left blank 988 10927 001 D Rev 1 SRT X BAND RADAR SYSTEM INDEX TABLE OF CONTENTS Chapter 1 DESCRIPTIONS AND MAIN 1 1 1 1 INTEODUGTION _______________________ 1 1 1 1 1 MANUAL APPLICABILITY ua Qu DT u u uA as 1 1 1 1 2 SRT X BAND RADAR SYSTEM 1 1 1 2 LIST OF ABBREVIATION 1 2 1 3 CONFIGURATIONS TABLE 1 3 1 4 PHYSICA DESCRIPTION uuu u 1 3 1 4 1 ANTENN
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46. Circuit To one terminal of the primary windings of the PULSE TRANSFORMER is applied the 700V whilst the second terminal is connected to the MOSFET push and pull The pulse is generated in accordance with TRPULL and will be pushed in accordance with TRPUSH in fact there is current only when the Transformer is grounded with the TRPULL Every time there is 700 V on the primary there is as well 6 kV on the secondary windings of the PULSE TRANSFORMER According with this configuration the R F is sent to the antenna from the Magnetron 988 10927 001 3 33 Rev 1 SRT X BAND RADAR SYSTEM SPECIAL DETECTION In order to get the best operating conditions for the Magnetron there is also a need to energize magnetron filament with a 6 3 V Filament Voltage voltage changes slightly depending from the magnetron installed named VFIL which is applied to a section of the secondary windings of the PULSE TRANSFORMER As result the signal FIL sent to the Magnetron has always a potential 6 3 V greater than the K potential While the SRT is Transmitting the CURRENT TRANSFORMER generates the signal MCUR which is used in this circuit to block high voltage to magnetron when current absorbed by magnetron is too high is sent to the Gate Array of the SRT Control Board is sent to the Microprocessor of the SRT Control Board 5 2 1 5 SRT CONTROL Board The SRT CONTROL Board see figure 9 18 is located in the Electronic assembly and his funct
47. DL3 HVOK mounted on the SRT Power lights up The VMOD is applied to the primary of the HVPS TRANSFORMER which driven by the MOSFET generates as output the required high voltage 700 V The Mosfet enabling is controlled by a circuit which also protects the MOSFET itself The circuit is composed by the blocks COMPARATOR POTENTIOMETER and FLYBACK CONTROLLER When the COMPARATOR recognizes HVON signal to be low enables the FLYBACK CONTROLLER that in turn enables transformer Mosfet output in the feedback loop another comparator assures that high voltage value is stable and correct This action is performed by potentiometers and LPA MPA and SPA signals In this way it is possible to control the Magnetron output power HVPS unit generates an additional 150 V voltage for a neon lamp performance monitor for future use 3 2 1 4 SRT MOS Board Two configurations are available one for 12 KW and one for 25 KW the number of MOSFET transistor switched differ in these two versions Basically the SRT MOS board see figure 9 16 performs the following main function High Voltage Pulses generation for Magnetron The Pulse Circuit Generator s function is to generate the necessary high voltage supplying the Magnetron according to the previous selections The Input Pushing Trigger is TRPUSH and the input Pulling Trigger is TRPULL both from SRT CONTROL Board To the Pulse Circuit Generator is applied as well the 700 V from the HVPS Generator
48. E From SRT_MOS rom MOSFET Feedback m d and Controls HV OK FLYBACK CONTROLLER HV ON From To LPA SRT Control MPA SPA Figure 9 14 SRT POWER board HVPS circuit 988 10927 001 9 14 Rev 1 988 10927 001 SRT X BAND RADAR SYSTEM FIGURES SRT MOS J 973271 Rev mJ B mO m 9 uo O LILILILIL XTB2 gt Figure 9 15 SRT MOS board 9 15 Rev 1 SRT X BAND RADAR SYSTEM FIGURES 700 V 15 Iso Transformer From V Mn J s 1 15 V 5 o 3 D TR Push Isolation Tran Driver Mosfet From SRT CONTRO TR Pull Driver HV Mosfet protection 15 Iso Sensor 5V 15V From to SRT POWER V Fil HV Stop Figure 9 16 SRT MOS board block diagram 988 10927 001 9 16 Fil Green K Yellow Magnetron Gnd Magnetron Current To Magnetron SRT Control Rev 1 988 10927 001 NOISE NOISE SOURCE SRT X BAND RADAR SYSTEM FIGURES TB1 IL TB5 PM OPT TB2 MOTOR bd Nooleoleoodle P1 TO SRT POWER 01 mo C2 o D2 27777777 O O 00800 dT TEs JE DID a 5E Le ad SELESMAR 5
49. ERROR RECEPTION 2 safety Controls Magnetron Heater Voltage test 24 VCO Voltage test Notes LINK flag Valid 1f Rx data are received Invalid if Rx data are NOT received time out CRC ER Invalid each time a error m Rx data will be found 988 10927 001 2 25 A Matches with select pulse width V Pulse width invalid no transmission A Motor Current nominal V Motor Current Protection ant STOP A Temperature lt 85 degree V Temperature gt 85 degree ant STOP A Transceiver safety door CLOSED V Transceiver safety door OPEN A Front End OK V Front End Fail A Test valid value In range V Test invalid value out of range A Test valid value 1n range V Test invalid voltage out of range A Test valid value 1n range V Test invalid voltage out of range A Test valid value 1n range V Test invalid voltage out of range A Test valid safety sw close V Test invalid safety sw open 1 A Test valid value 1n range V Test invalid voltage out of range A Test valid value 1n range V Test invalid voltage out of range Rev 1 SRT X BAND RADAR SYSTEM SPECIAL DETECTION DATA SENTENCE 3 hhhh hh lt CR gt lt LF gt Prog Config 16 bits in hex format Not use 5V DC Voltage 5V DC Voltage 15VDC Voltage Line Voltage 24 50 VDC 15 VDC Voltage
50. F Amplifier composed of Low Noise Front End Low Noise Amplifier Mixer LO Detector The echo signal received by the Antenna arrives through the Limiter and the Low Noise Amplifier to the Mixer where it is mixed with the signal forwarded by the Local Oscillator The resulting beat is the 60 MHz IF signal which is forwarded to the RF Detector The Limiter is used to avoid an output above a scheduled value A higher output would cause a short circuit The Low Noise Amplifier and the Image Rejection Filter are used to amplify the echo signal in order to improve the noise figure of the receiver The Local Oscillator is integrated directly into the LNFE It can be tuned up to the Magnetron transmission frequency through the VCO voltage level The RF Detector assembly s function see figure 9 24 9 25 is to amplify the echo signals delivered by the RF HEAD assembly It is composed of a Group Amplifier stages cascade connected with specific components so to obtain a logarithmic dynamic characteristic The central frequency is 60 MHz and the bandwidth is 1 8 MHz for Long Pulse 4 5 MHz for Medium Pulse 24 MHz for Short Pulse To maintain the target echo signals free from any possible external induction that can degrade the performance of the Unit the DC power supply voltages and the band switching commands are applied to the module by means of a FILTER 3 2 3 Brushless motor controller Board Speed controller board sets brushles
51. ION CHAPTER 8 INSTALLATION 8 1 Introduction This chapter of the technical manual can be used as a self contained installation manual for the SRT X BAND RADAR SYSTEM with 6 feet antenna It contains necessary information pictures and drawings to handle assemble and install this unit as a part of the complete radar equipment Actions how to prepare this unit for the radar equipment setup procedure are also described 8 1 1 Shipping Following general rules apply Inspection for damage during transport When unit arrives at destination inspection should be performed immediately to register any damage that may have occurred during transfer The customer is normally responsible for insurance during the transportation If any damage is found both the insurance company and the shipping agent must be informed Immediately 8 1 2 Unpacking The unit parts are placed in cardboard boxes covered with a plastic sheet Each box includes a protecting polyurethane box shaped for the contained parts The following rules should be observed Units must be transferred on board still packed into their boxes When the units are removed from their boxes they must be left in their protective plastic cover until installation Itis advisable to keep the packing material for possible future use the plastic sheet in which the unit is wrapped can be used to protect it during installation and maintenance procedures In addition to the vario
52. LOT OF ATTENTION NOT TO DAMAGE THE WAVEGUIDE JOINT FIGURE 9 31 POS 1 988 10927 001 6 9 Rev 1 SRT X BAND RADAR SYSTEM CORRECTIVE MAINTENANCE 6 2 8 Encoder replacement a Required tools Set of screwdrivers Set of hexagonal wrenches b Removal 1 following the procedures of paragraph 6 2 2 open the SRT unit cover Disconnect encoder cables Figure 9 30 pos 4 to the SRT CONTROL board By means of proper hexagonal wrenches unscrew the two screws pos 1 fixing the mechanical part pos 5 to the SRT unit cover and remove it 4 By means of proper hexagonal wrenches unscrew the two socket set screws pos 6 fixing the gear pos 7 to the encoder shaft and remove it 5 By means of proper screwdriver unscrew the three screws pos 3 fixing the encoder to the mechanical part and remove it c Installation 1 order to install the new Encoder perform the removal operations in reverse order 6 2 9 Performance monitor replacement a Required tools Set of hexagonal wrenches Silicone grease compound 340 Set of combination wrenches b Removal 1 On the electric switch board set to OFF the main line breaker relevant to the unit and hang to placard reading WORK IN PROGRESS DO NOT SWITCH Using the appropriate wrenches remove four screws Figure 9 3 pos 5 Remove the performance monitor pos 6 c Installation 1 Check for the integrity of new performance
53. List of abbreviation 988 10927 001 1 2 Rev 1 SRT X BAND RADAR SYSTEM DESCRIPTIONS AND MAIN CHARACTERISTICS 1 3 Configurations table OUTPUT ROTATIONAL PEDESTAL ANTENNA TRANSCEIVER POWER SPEED SRT 25 002 ANT12X 001 Included in Pedestal 25 KW Standard 20 Table 1 2 Configurations table 1 4 Physical description The SRT 25 kW X Band Radar System is composed of see figure 9 2 Antenna 12 feet pos 3 Pedestal pos 1 Encoder see figure 9 30 pos 2 Optional equipment Heater SRT Adapter Box see figure 9 36 All Units are designed for maximum resistance to the severe environmental conditions in which they have to operate DESCRIPTION CONFIGURATION CODE WIDTH HEIGHT DEPTH WEIGHT mm mm Radar System with 12 Antenna ANT12X 001 Without Antenna Table 1 3 Physical description 1 4 1 Antenna The antenna consists of aside feeded slotted waveguide of 12 feet length waveguide feeding the slotted waveguide from the rotary joint including a turnaround part The connection to the rotary joint is through a choke flange without screws polarisator to radiate only in horizontal polarization antenna horn consisting of upper and lower side to form the vertical beam aplastic external cover for weather protection The antenna see figure 9 2 pos 3 is mounted on the pedestal support pos 2 by the anten
54. N In the related circuit there is a diode put inside the RF Head operating as a revelator when the magnetron send the power in output as noise generator when the signal PM_Out is available When diode is operating as revelator it is synchronized with the transmission and the revelator circuit can detect the power present at the diode this circuit is always activated the measurement is made every trigger and the measured value is available on TXRX data When the command Performance Monitor ON is inserted the power value and the tuning value are arranged to change signal parameters The scope of this circuit is to introduce a noise ring on PPI This noise ring change its distance by the variation of the transmitting power and its thickness by the variation of the tuning A neon lamp placed in front of the Antenna on a monitor arm extending from the antenna pedestal powered by 150 Volt forwarded by POWER MOS Board is excited at each antenna scan by the radiated RF pulse energy any time the RF beam crosses over The result is that when the Performance Monitor is switched on and the neon lamp is radiated by the Magnetron RF the RF energy causes a current variation on neon lamp and on RM signal A revelator circuit provides to detect this variation that interrupts the Noise Ring This function supplies to a general verification of the output power sent out 3 2 1 9 Input and Output Interface functions The
55. NDED TOOLS AND INSTRUMENTS Innern 4 1 TABLE 4 2 LIST OF THE PREVENTIVE MAINTENANCE CARDS 111000000000 4 2 TABLE 4 3 PREVENTIVE MAINTENANCE CARD 1 2 10 0 0 00 1111111 4 2 TABLE 4 4 PREVENTIVE MAINTENANCE CARD 2 a nnn nsns nnns enne nnn 4 3 TABLE 4 5 PREVENTIVE MAINTENANCE CARD 4 4 TABLE 5 1 POSSIBLE SRT X BAND RADAR SYSTEM FFAILURES 9 2 TABLE 5 2 MAIN POSSIBLE SRT X BAND RADAR SYSTEM REMEDY 5 3 TABLE 6 1 LIST OF RECOMMENDED TOOLS AND INSTRUMENTS nee 6 2 TABLE 6 2 LIST OF COMPONENT TO BE 1 00 00 2 202221 1002100000 00000000000000001 6 2 TABLE 3 ELECTRONIC RACK CONNECTORS 5 Se qas 6 9 TABLE 74 SXSTEMPARTEIST n E q 7 2 TABLE 8 1 COMPASS SAFE DISTANCE 8 10 988 10927 001 IV Rev 1 SRT X BAND RADAR SYSTEM INDEX FIGURES LIST FIGURE 8 1 MASTHEAD MOUNTING VIEW nsns nsns nsns nsns sss nnns nsns ns 8 3 FIGURE 8 2 SUGGESTED ANTENNA MOUNTING 8 4 FIGURE 8 3 ANTENNA GLARE ANGLE 2 211 000 000 02000 000000 00000000000 8 5 FIGURE 9 4 ANTENNA
56. PEN Do not replace components or make adjustments inside the unit when the voltage supply turned ON Always remove power and discharge to ground a circuit before touching it Under no circumstances should any person initiate servicing or repairing the unit except in the presence of someone qualified operator Ensure unobstructed access to all operator panels controls and relevant switchgear cabinets in order to enable instant response to alarms Whenever it is necessary to disconnect the waveguide from a radar transmitter for maintenance purpose the transmitter output should be terminated with a matched load If this is not possible care should be taken to don t stand in front of an open ended waveguide from which power is being radiated NEVER look down a wavequide from which power is being radiated NOTE Main power line is always present on terminal board and on fuses High voltage SRT X BAND RADAR SYSTEM transceiver requires usage of high voltage which can cause serious injury or even loss of life Danger exists especially when units are opened exposing internal circuits as when servicing the equipment This equipment has been carefully designed to protect personnel from possible injury from high voltages As an additional safety measure it is strongly recommended that safety switch always be opened when inspecting or servicing the equipment Opening the safety switch provides a voltage reduction anyway caution is always need
57. POSITION 8 5 FIGURE 8 5 LIFTING SRT X BAND RADAR SYSTEM BY 8 7 FIGURE 8 6 LIFTING ANTENNA Ceca da o de D D 8 8 7 MAIN CONNECTOR DRAWING 8 9 FIGURE CABLE TERMINATION nd iai ea 8 9 FIGURE 6 9 SAFETY SWITCH VIEW 8 10 FIGURE 8 10 MULTICORE CABLE OVERVIEW 8 11 FIGURE 9 1 SRT X BAND RADAR SYSTEM GENERAL 9 1 FIGURE 9 2 SRT X BAND RADAR SYSTEM EXTERNAL eene 9 2 FIGURE 9 3 SRT X BAND RADAR SYSTEM WITH PM ARM 9 3 FIGURE 9 4 SRT X BAND RADAR SYSTEM INTERNAL 9 4 FIGURE 9 5 MOTORREDUCER 9 5 FIGURE 9 ELECTRONICS RACK ____ ___ 9 6 FIGURE 9 7 SRT UNIT FUNCTIONAL BLOCK DIAGRAM FOR 6 FEET 9 7 FIGURE 9 8 SRT UNIT INTERNAL 222 9 8 FIGURE 9 9 SRT UNIT INTERNAL VOLTAGE AND SIGNALS 9 9 FIGURES 1D SERT POWER BOARD ue osa nad nts a out aue 9 10 FIGURE 9 11 SRT POWER BOARD GENERAL BLOCK nnn
58. RT X BAND RADAR SYSTEM FIGURES VCO PE Ve TR Push TR Pu Out V ON LPA Figure 9 21 SRT CONTROL board output interface RF Detector To RF Detector To Motor Controller To Display gt SRT_Mos Display SRT_Power HVPS o SRT_Power LVPS To RF Detector To Performance Monitor To Safety Switch To Display Rev 1 988 10927 001 SRT X BAND RADAR SYSTEM FIGURES 15V 15 Monitor L4 _15 Voltage Monitor BY Adapter J L 2 Microprocessor i AD7 11 el 1 7 10 24VCO AD7 9 x AD7 8 Temperature Temp 4 INC U D From CS4 Gate Array CS3 Performance Monitor N From Input uner Optional Interface Tunen From Output PMOut Interface From Neon BAM Lamp Figure 9 22 SRT CONROL board monitor Rev 1 Magnetron From SRT MOS 988 10927 001 Isolator RF Pulse SRT X BAND RADAR SYSTEM FIGURES FROM ANTENNA Pulse Filter Limiter Pulse Figure 9 23 RF Head functional block diagram 9 23 Low Noise Front End Video RF Detector Tune 5V SB1 SB2 STC V Tune From To SRT CONTROL Rev 1 SRT X BAND RADAR SYSTEM FIGURES Tune Voltage Balanced Mixer WG Mic Transition g s 60 MHz IF Out Isolator 0 Divider From To iio RF Detector RF in
59. TENNA DISCONNECT THE MOTOR UNIT FROM THE BRUSHLESS CONTROLLER BOARD AND UNPLUG THE 5 PIN CONNECTOR 11 Position the selector 1 of SRT CONTROL board Figure 9 17 pos 5 on position 2 Perform the following operations SRT POWER Board made a link P1 see figure 9 10 pos 1 before switching on wait for 30 minutes 13 By following the procedures of display manual perform the VCO calibration Perform the following operations O N onthe SRT POWER Board remove the link P1 see figure 9 10 pos 1 SRT CONTROL Board position S1 see figure 9 17 pos 5 on 0 zero 15 Unlock and close the equipment cover by following the reverse procedure 6 Grease the fastening screws to avoid corrosion and facilitate future inspections and fix the cover 17 On the electric switchboard set to ON the power breaker relevant to the unit and remove the warning placard Table 4 5 Preventive maintenance Card 3 988 10927 001 4 4 Rev 1 SRT X BAND RADAR SYSTEM TROUBLESHOOTING CHAPTER 5 TROUBLESHOOTING 5 1 Introduction 5 1 1 General This chapter provides the procedures to be followed in order to locate faulty component when trouble is found in SRT X BAND RADAR SYSTEM 5 1 2 Organization The troubleshooting procedures are described by flow charts When the faulty component is located please refer to chapter 6 for its replacement 5 1 3 Personnel
60. Unit and Electronics Rack On the Main Connector the following signals can be located Combined Video Power supply Safety Switch 1 4 2 2 SRT electronic parts The SRT X BAND RADAR SYSTEM contains high speed electronic circuits which allow to the RF HEAD transmission reception and processing the RF echoes Tables 1 4 1 5 and 1 6 lists the main assemblies composing the unit and their position inside the unit DESCRIPTION POSITION RF HEAD Figure 9 4 pos 7 Electronic Rack Figure 9 4 pos 4 Encoder Figure 9 30 pos 2 Brushless motor controller Board Figure 9 4 pos 5 Brushless motor Figure 9 4 pos 6 Table 1 4 SRT X BAND 12 kW and 25 kW composition 988 10927 001 1 4 Rev 1 SRT X BAND RADAR SYSTEM DESCRIPTIONS AND MAIN CHARACTERISTICS DESCRIPTION POSITION Magnetron Figure 9 27 pos Circulator Figure 9 28 pos Limiter Figure 9 28 pos RFAmplifier Figure 9 28 pos Noise Diode Figure 9 28 pos Power Diode Figure 9 28 pos Table 1 5 RF Head DESCRIPTION POSITION SRT Control Figure 9 6 pos 2 SRT MOS Figure 9 6 pos 3 SRT Power Figure 9 6 pos 1 Table 1 6 Electronics rack The Electronics Rack is connected to Encoder by a connector see figure 9 30 pos 2 on the SRT Control Board Brushless Motor Controller Board see figure 9 4 pos 5 RF Head pos 7 and figure 9 28 the Display Unit through the Main Connector see figure 9
61. ZL L u ETIN 4 1 4 2 PREVENTIVE MAINTENANCE PROCEDURE 4 1 Chapter 5 TROUBLESHOOTING mea c det px EE piu paa rc eeu e metuat 5 1 5 1 5 1 5 1 1 GENERAL lac 5 1 5 1 2 I uM ace eee UE 5 1 5 1 3 PERSONNE __ _____________ 5 1 5 1 4 TOOLS AND INSTRUMENTS 5 1 5 2 TROUBLESHOOTING PROCEDURES uei rts unus usu l aaa is 5 1 5 2 1 SAFETY PRECAUTION p mscr tun teorie mus aaah a 5 1 5 2 2 TROUBLESHOOTING OPERATIONS 5 2 Chapter 6 CORRECTIVE MAINTENANCE 6 1 6 1 INP OD UG TON 6 1 6 1 1 SAFETY PRECAUTION 6 1 6 1 2 A A 6 1 6 1 3 REQUIRED TOOLS AND INSTRUMENT a 6 1 6 2 CORRECTIVE MAINTENANCE nnns nne n nnns 6 2 6 2 1 ANTENNA REPLACEMENT 6 3 6 2 2 OPENING CLOSING OF THE T XRX COVER 6 3 6 2 3 MOTOREDUCER ASSEMBLY REPLACEMENT sscccccececeeeeceeceeeeeeseseccceeeeeeeeeeeeeeeaaaaees 6 4 6 2 3 1 MOTOR UNI REPLACEMENT m muna
62. ball Set of combination wrenches Set of Torx wrenches Silicone grease compound 340 988 10927 001 6 6 Rev 1 SRT X BAND RADAR SYSTEM CORRECTIVE MAINTENANCE Set T Handle wrenches with swiveling hexagon sockets Set T Handle wrenches with swiveling hexagonal sockets b Removal 1 On the electric switch board set to OFF the main line breaker relevant to the unit and hang to it a placard reading WORK IN PROGRESS DO NOT SWITCH By following the procedures of paragraph 6 2 2 open the SRT unit cover Unscrew the four bolts holding protection shield Figure 9 6 pos 4 4 By means of the proper screwdriver remove the magnetron wires from the terminal Figure 9 15 pos 1 tacking note of their disposition o Unplug yellow and green cables loosing the two bolts o Unplug the yellow green earth cable Disconnect the RF Head Figure 9 28 cabling taking note of its disposition By performing the operations of paragraph 6 2 7 remove the electronics assembly Using proper allen wrenches with ends ball loose four screws Figure 9 29 pos 1 pO qb cem Holding the RF Head remove two screws pos 2 with proper allen wrenches with ends ball 9 Extract the RF Head Figure 9 28 from the cover 6 2 6 1 RF amplifier replacement 1 By performing the operations of paragraph 6 2 6 point b remove the RF Head 2 Holding the RF amplifier Figure 9 28 pos 1 remove four Torx screws Figure 9 35 pos
63. e maintenance operations INSTRUMENTS Set of Torx screwdrivers Soft brush Set of screwdrivers Soft cloth Electro contact cleaner Dry brush Alcohol Dry cloth Vacuum cleaner Silicone grease Air brush carbon tetrachloride Emery paper Table 4 1 List of recommended tools and instruments 988 10927 001 4 1 Rev 1 SRT X BAND RADAR SYSTEM PREVENTIVE MAINTENANCE REQUIRED TIME indicates the total time expected to perform the card operations SAFETY PRECAUTIONS it indicates the precaution to be followed in order to ensure a safe preventive maintenance operation execution Table 4 2 for each of them indicates the periodicity and the required time CARD OPERATION PERIODICITY REQUIRED TIME Check of the external preservation status 15 Magnetron replacement WR1 8000h Table 4 2 List of the preventive maintenance cards WARNING HIGH VOLTAGE IS PRESENT INSIDE THE UNIT DO NOT OPEN THE FRONT COVER BEFORE THE MAIN LINE BREAKER HAS BEEN TURNED TO OFF POSITION CARD 1 UNIT OPERATION PERIODICITY SRT X BAND RADAR SYSTEM Check of the external preservation status S1 PERSONNEL REQUIRED INSTRUMENTS REQUIRED TIME 1 Vacuum cleaner emery paper dry brush 15 minutes anticorrosive paint SAFETY PRECAUTIONS On the electric switchboard set to OFF the power breaker relevant to the unit and hang to ita placard reading WWORK IN PROGRESS DO NOT SWITCH STEP SEQUENCE OF OPERATIONS Check
64. e transceiver casting during installation Every analog adjustment is made remotely from the SELUX console The pedestal with built in 25 kW transceiver supports 12 antenna Both Transceiver and motor driver are fed by a 48 VDC supply an external transformer is required for 115 220 VAC 50 60 Hz power supply The Transceiver has new compact electronics with a high integration level derived from a well tested design Main features Modular and solid state construction Electronic Modulator based on MOSFET technology Long life 2741 generation magnetron 25 KW Low Noise Amplifier providing a reduced overall Noise Figure 4 0 dB nominal Microcomputer controlled operations Serial link with telemetry and remote control for adjustments Built in test facilities for power supply and modulator parameters PRF jittering removing any possible ambiguity due to multiple time around echoes Two different Sectors Blanking to be set at time of installation Performance Monitor Rotation 20 RPM continue 988 10927 001 1 7 Rev 1 SRT X BAND RADAR SYSTEM DESCRIPTIONS AND MAIN CHARACTERISTICS ANTENNA amp PEDESTAL TECHNICAL SPECIFICATION Antenna model 12X 12 00 Driver amp 5 12 002 5 25 002 Antenna swing circle mm Polarization Horizontal Gain dB 32 5 Horizontal beam width at 3 dB Vertical beam width at 3 dB Horizontal side lobes within 10
65. ed The manufacturer is not responsible for any injury or death connected with the use of this equipment due to lack of caution or to improper use 988 10927 001 8 Rev 1 SRT X BAND RADAR SYSTEM SOFTWARE REVISION Appropriate actions must be taken before starting to work Switch off the equipment disconnect the equipment from the mains supply Take precautions against inadvertent re connection To verify that circuits are dead and no voltage is present perform the appropriate measurements for example ground and short circuit The dangerous voltages are no longer present Mains switches are live even when the equipment is switched off Radio frequency Harmful effects particularly to the eyes may be caused by exposure of any part of the human body to radio frequency mean power densities Hazard distances at which power densities of 100 W m 50 W m 10 W nv for each type of unit used with the SRT X BAND RADAR SYSTEM are given in the following table Distance to 100 Distance to 50 W Distance to 10 W WI m point point m point m 25 kW Transceiver 12 X Band Antenna ANT12X 001 The system is however designed too always disable the microwave radiation when the antenna is not rotating X Ray radiation This unit does not generate X RAY radiation Interlock Transceiver have one type of interlock with specific functions proscribes the transmission and the magnetron feed Safe
66. eguide joints may not be uncovered when the antenna is not mounted NOTE The fixing materials to fasten the antenna pedestal to the ship s platform not provided by the manufacturer Assuming a platform plate thickness of 20 mm four M10 stainless steel bolts of 65 mm length with relative nuts grooves and washers must be used The tightening couple is 44 Nm 8 3 2 Antenna The antenna and the unit must be run up the mast separately and then assembled The TXRX should not be lifted with the antenna already mounted WARNING IT IS RECOMMENDED TO USE THE SLINGS FOR LIFTING THE ANTENNA AS SHOWN IN FIGURE 8 2 The mounting procedure of the antenna to the pedestal consists of following steps remove the waveguide protections on the antenna and pedestal Mount the antenna over its support check that the waveguide connections are on the same side The antenna assumes the right position following two reference covers Rest the antenna on the pedestal and tighten the 16 bolts holding the antenna The tightening couple is 22 Nm 988 10927 001 8 Rev 1 SRT X BAND RADAR SYSTEM INSTALLATION P Ad p Figure 8 6 Lifting antenna 8 3 3 Safety switch Usually the safety switch is located on DCORE or SRT ADAPTER BOX Installation of safety switch is compulsory The optional safety switch can be supplied by the manufacturer It is recommended to place the safety switch at the bottom of the stairs t
67. enna PPR Magnetron type 2 PRF sets selection from 0 to 3 7 R request of status S save potentiometers as factory default Notes 1 Set number of antenna PPR 4 digits zero padded 0128 0132 1024 4096 2 Magnetron w a 3 u o x gt 10 PRF Sets value used 0 and 1 PRF Sets value 0 PRF Sets value 1 5 Poo Le gt m E Le D De a Las 988 10927 001 2 14 Rev 1 C C 9 SRT X BAND RADAR SYSTEM SPECIAL DETECTION Set the Performance Monitor Unit installation status P present NULL not present Main power status Bit 0 set to 0 power supply at 24 volt Bit 0 set to 1 power supply at 50 volt Bit 1 set to 1 HSC Antenna Bit 2 set to 1 Gear motor ratio 1 20 Bit 3 set to 1 HL Falling front 0 Rising front TXRX Type Bit 0 set to0 for Speed Control 1 for Antenna fixed speed Brushless Controller Type Bit 1 set to Speedmotion 1 for BMD types WARNING HSC Antenna and Gear motor ratio 1 20 cannot be both active a message with such configuration will be refused 988 10927 001 2 15 Rev 1 SRT X BAND RADAR SYSTEM SPECIAL DETECTION DATA REQUEST SPREQ x hh lt CR gt lt LF gt Request select a set of data Request code Data Description Antenna speed angle 128 values packed in 4 packets Every number represents speed in rpm x 2 for every 360
68. es and subsequent amplification in the RF Head see figure 9 4 7 The Electronics Rack unit also includes the circuits to generate the voltage required for its operation see figure 9 9 The function of the Antenna unit is to 1 Transmit the R F pulses within the specified vertical and horizontal lobes with horizontal polarization 2 Receive the reflected R F echo signals and forward them towards the RF HEAD 988 10927 001 1 6 Rev 1 SRT X BAND RADAR SYSTEM DESCRIPTIONS AND MAIN CHARACTERISTICS 1 6 Technical characteristics In the following tables are reported the technical characteristics for the SRT X BAND RADAR SYSTEM 25 kW pedestal and 12 feet antenna GENERAL DESCRIPTION In this configuration a sturdy and splash proof antenna pedestal houses the following sub assemblies Built in X band solid state controlled Transceiver Transceiver DC Power Supply and external AC DC converter box Antenna Motoreducer assembly High performance plastic gear wheel RF rotary joint Encoder 4096 pulses The antenna is an End Fed Slotted Waveguide type The above compact arrangement allows a direct coupling between Transceiver and rotary joint thus simplifying the installation work and significantly reducing the RF losses normally accepted when the Transceiver is installed into a separate cabinet in down mast position The interface with the radar console is through a single connector and it is not necessary to open th
69. function Logic terms and principles used in this technical manual comply with standard engineering practices Logic symbols gates are used if they represent more appropriately in a simplified form the logic function performed even by complex parts of hardware Where necessary functional description of power supplies and minor assemblies are referred to schematic diagrams NOTE The schematic block diagrams of Chapter 3 show all the functions that the boards hardware could potentially support while the related functional description refers only the functions implemented in present customized configuration 3 2 Functional description On the basis of the SRT X BAND RARAR SYSTEM functional block diagram shown in figure 9 7 the equipment can be subdivided into the following main assemblies Electronics Rack RF Head Brushless Motor Controller board Motor Unit There are also a number of optional functions which are also described below as The SRT Adapter Box Heaters Encoder 988 10927 001 3 31 Rev 1 SRT X BAND RADAR SYSTEM SPECIAL DETECTION 3 2 1 Electronics rack The Electronics Rack block diagram is shown in figure 9 7 and 9 8 Each block represents functional area which is described in detail in the following function of the present chapter paragraphs 3 3 through 3 7 The blocks indicated by dotted lines represent circuits assembled on the equipment chassis This is concerning all the b
70. gree Integer value Es 123 71 This value will be rounded depending from the position sensor used 988 10927 001 2 21 Rev 1 SRT X BAND RADAR SYSTEM SPECIAL DETECTION CONHIGURATION STATUS SPCFG x xx xxxx h hhhh a h hhhh hh CR LF Optional parameters 12 bits in hex format Configuration 4 bits in hex format Performance monitor available gt CRC program 16 bits in hex format Short Pulse Set 3 Antenna PPR Magnetron type PRF sets selection from 0 to 3 Notes 2 Set the number of antenna PPR 4 digits zero padded 0128 0132 1024 4096 2 Magnetron Type Magnetron type Code Magnetron type Model MG5494 MGS5424 MG5494 MG523 0T MGS523 1T MG5222 MG5089T 3 Short Pulse width from 0 to maximum in 5 ns steps This is nominal pulse leneth ns for 25 KW X band transceiver _ gt 2 5 3 Show CRC program hex value 5 Show the Performance Monitor Unit installation status P present NULL not present Main power status Bit 0 set to 0 power supply at 24 volt Bit 0 set to 1 power supply at 50 volt Bit 1 set to 1 HSC Antenna Bit 2 set to 1 Gear motor ratio 1 20 Bit 3 set to 1 HL Falling front 0 Rising front 9 TXRX Type Bit 0 set to 0 for Speed Control 1 for Antenna fixed speed Brushless Controller Type Bit 1 set to Speedmotion
71. hat are giving access to the radar mast The switch must be mounted with the cable glands pointing down Connect the cable as described in paragraph 8 4 Electrical installation 8 3 4 Performance monitor arm To install the performance monitor arm proceed as follows connect performance monitor arm for the radiation monitor on the SRT The arm shall be angled upwards 8 4 Electrical installation Electrical installation of SRT X BAND RADAR SYSTEM consists of cabling and connection to terminals as described below figure 9 37 8 4 1 Multicore cable Also see paragraph 8 5 1 Multicore Cabling and termination principles NOTE Use the installation materials for the multicore cable which are delivered by the manufacturer to ensure proper connection Normally the cable 4 twisted pair 2 coax 8 wire P N 55X456P001 is delivered to a length of 30m The multicore cable includes wires for power video trigger and antenna data It is therefore required to handle these cables with particular care 988 10927 001 8 8 Rev 1 SRT X BAND RADAR SYSTEM INSTALLATION The SRT unit end of the multicore cable shall be connected to the main connector see figure below Pint Pin2 Pin3 Pin 4 Pin 5 SFT ANTS GND EBAT EBAT 0 0 Pin6 Pin8 Pin 9 Pin 10 VDO5 VD NC MBAT MBAT Figure 8 7 Main connector drawing Figure 8 8 Cable termination 8 4 1 Grounding Connect tinned braided cop
72. he value is send in serial mode to the Display Unit PWLEVEL Information about the Power Level the value is send in serial mode to the Display Unit MCUR Magnetron cathode current pulse sample the value is send in serial mode to the Display Unit VFIL M VFil Voltage value 24 VCO M 24 Voltage value 12 VT 40 to 60VDC Main Power Voltage value 15M 15V Voltage value TEMP Temperature value the value is send in serial mode to the Display Unit 5V M 5V Voltage value continue 988 10927 001 3 35 Rev 1 SRT X BAND RADAR SYSTEM SPECIAL DETECTION 5V M 5V Voltage value 15V M 15V Voltage value Monitor M Information about the L N F E status AZ Antenna azimuth pulse HL Antenna ship reset pulse RX Asynchronous serial receive IRQ Video data Reception Transmission Interrupt NMI Power supply line absence CK10 50 MHz clock SCK SI Serial Gate Array management signals Gate Array Input Signals CK50 ANTBLK SLK LINE HV OK HV Stop MPLC P1 and P2 1 selector TR CS1 SCK SO TRSTC RXCOMB Gate Array Output Signals DATA BUS NMI IRQ CK10 CS0 CS7 U D INC SWFIL1 2 3 ANTS SPA MPA LPA HVON SWB1 SWB2 TRPS TRPL 988 10927 001 Input for the 50 MHz clock High voltage generation and antenna rotation disabling from the Safety Switch High voltage generation and antenna rotation disabling from the interlock Main power supply voltage High voltage supply feedback
73. hen red there is a parity error at decoding This latter LED works when the decoding function is enabled 988 10927 001 3 40 Rev 1 SRT X BAND RADAR SYSTEM SPECIAL DETECTION 3 2 7 Optional Equipment Heaters Heaters are introduced for extreme cold environments when the SRT Radar System is expected to operate down to 40 C The HEATER kit is installed inside the pedestal to heat apparatus and internal units which it is composed when external temperature drops below 0 Too much could affect the proper operation of the equipment It is composed of dacontrol board SRT HEATER board athermostat two cartridge heaters The heater system consists of cylindrical heater resistors mounted inside two cavities on the top part of the transceiver The heaters warm the inside electronics and the Gearbox A controller Board stops the heating when temperature is going over 0 C and switches all the available power that is not used by the antenna rotation to the heaters 988 10927 001 3 41 Rev 1 SRT X BAND RADAR SYSTEM SPECIAL DETECTION This paqe is intentionally left blank 988 10927 001 3 42 Rev 1 SRT X BAND RADAR SYSTEM PREVENTIVE MAINTENANCE CHAPTER 4 PREVENTIVE MAINTENANCE 4 1 Introduction This chapter provides necessary informations to execute preventive maintenance operations which must be carried out to ensure the SRT X BAND RADAR SYSTEM full efficiency The maintenance procedures are described in tabu
74. ion in the sector of its sensor Installation of safety switch change if it is mounted on the DC CORE or ADAPTER BOX or optional for the ADAPTER BOX external is compulsory It is recommended to be installed at the bottom of the stairs giving access to pedestal The waterproof switch is supplied by manufacturer but a connection cable 2x2 5 mm should be provided by the shipyard Antenna group must be covered by plastic sheet during any painting performed after installation NOTE In no case antenna shall be used to hoist the pedestal up the mast 8 3 Mechanical installation 8 3 1 SRI X BAND RADAR SYSTEM Prepare the platform for mounting of the pedestal with its built in transceiver Hole diameters and distances is evident from Figure 9 33 The pedestal should be mounted with its lid hinges pointed forward and cable glands pointed astern However the antenna swinging plane must be horizontal in all directions when ship is upright on even keel Consider giving ample space for service especially astern of the antenna group If such space cannot be achieved contact manufacturer for installation alternatives WARNING NEVER PASS OR STAY UNDER ANY LIFTED OBJECT 988 10927 001 8 6 Rev 1 SRT X BAND RADAR SYSTEM INSTALLATION Figure 8 5 Lifting SRT X BAND RADAR SYSTEM by crane NOTE The protection waveguide covers on the antenna and pedestal must not be removed until when mounting the antenna Anyhow the wav
75. ion is to control all SRT operations The SRT CONTROL Board is divided in the following main circuits Microprocessor and Gate Array System monitor Performance Monitor Inputand Output Interface 3 2 1 6 Microprocessor and Gate Array General Description The heart of SRT Control Board is an advanced 32 Bit MCU Micro controller Unit see figure 9 18 with highly sophisticated on chip peripheral capabilities and performing the function of managing all functions of the SRT unit on the basis of commands data from the Display Unit preparing the feed back signals to be sent out to the Indicator unit executing internal processing to assure the SRT units control and monitoring The Microprocessor used in the board is the MCF5211 with these characteristics 16 KB SRAM 128 KB Flash Memory Two UARTs Queued serial peripheral interface QSPI with four peripheral chip selects Four 32 bit timer channels with DMA capability Four 16 bit timer channels for capture compare and pulse width modulation PWM Four channel 16 bit 8 channel 8 bit PWM generator Two periodic interrupt timers PITs for alarm and countdown timing Eight channel 12 bit ADC System integration PLL SW watchdog Up to 33 general purpose 988 10927 001 3 34 Rev 1 SRT X BAND RADAR SYSTEM SPECIAL DETECTION The SRT unit management is performed by the Microprocessor that does not require any external PROM or RAM e
76. ions of paragraph 6 2 7 remove electronics assembly By performing the operations of paragraph 6 2 6 remove the RF Head By means of the proper screwdriver remove the four Torx screws Figure 9 27 pos 2 fixing the magnetron Remove the magnetron Installation Before fastening the magnetron to the proper seat spread a layer of silicone grease on magnetron surface which is in contact with the alloy in order to increase its heating surface dissipation In order to install the new magnetron perform the removal operations in reverse order WARNING IN ORDER TO PREVENT ANY ACCIDENTAL ROTATION OF THE ANTENNA DISCONNECT THE MOTOR UNIT FROM THE BRUSHLESS CONTROLLER BOARD AND UNPLUG THE 5 PIN CONNECTOR 6 7 9 the electric switchboard set to the main line break relevant to the unit and remove the warning placard Position the selector 1 of SRT CONTROL board Figure 9 17 pos 5 on position 2 On the SRT POWER board made link P1 Figure 9 10 pos 1 before switching on wait for 30 minutes By following the procedures of display manual perform the VCO calibration Perform the following operations SRT POWER board remove the link P1 Figure 9 10 pos 1 on SRT Control board position S1 Figure 9 17 pos 5 on 0 zero 10 Unlock and close the equipment cover by following the reverse procedure 6 2 6 RF Head replacement a Required tools Set of screwdrivers Set of allen wrenches with ends
77. ised for safe operation of the equipment We assume no liability for damage due to improper operation which could have been prevented The system must only be operated by persons who have passed the relevant mandatory training on the respective systems and applications Only reading these operating instructions cannot replace such training Persons authorised to operate the system are specially instructed and trained from Consilium Italy Persons authorised to carry out cleaning maintenance and troubleshooting are the specially trained and skilled personnel of the user Persons operating or servicing the SRT X BAND RADAR SYSTEM must be familiar with the general safety regulations and specific safety systems and they must have passed all required training and must have read the relevant operating instructions and manuals before starting work Have these operating instructions always at hand on location Ensure that copies are available at all relevant operator Operating personnel must at all times follow all safety regulations During normal operation front cover closed the unit can be quickly disconnected from the main power line turning OFF the relevant circuit breaker located on the electric switchboard During maintenance front cover opened it is possible to turn on the unit by linking P1 on SRT POWER Board see figure 9 10 pos 1 This link forces the unit main power to be ON During normal operation P1 on SRT POWER Board must be set O
78. lar form card each card lists the operations which must be performed their periodicity personnel required the materials and the time required for their performance 4 2 Preventive maintenance procedure The preventive maintenance procedures are described by means of cards Each card besides indicating the operations to be performed during the maintenance execution lists the following indications PERIODICITY it is an alphanumeric code identifying the maintenance action described The following periodicity symbols as appropriate are used in order of increasing periodicity intervals as listed in the following o M Monthly 5 Semi annual o A Annual o WR When Required PERSONNEL it indicates the number and expertise of the personnel able to perform maintenance operations On the assumption that the qualification knowledge experience and skill needed to fulfil the task are proportional to the ranks following abbreviations are used ST isa qualified person with not less than ten years of experience on the job JT is a qualified person with more than four years of experience on the job R is a young technician with less than four years of experience on the job who can be either qualified or undergoing qualification REQUIRED INSTRUMENTS it indicates the tools or the instruments which are used in the card operations Table 4 1 lists the tools the instruments and the material required to perform the preventiv
79. le accordingly The antenna surface is sensitive to impacts and pressure Any deformation of the antenna surface can reduce the radar performance Lift the antenna in slings carefully preventing it from slipping 988 10927 001 8 2 Rev 1 SRT X BAND RADAR SYSTEM INSTALLATION 8 2 Installation In order to obtain the best radar performance and accessibility the following precautions should be used space for the antenna to swing freely safety and easy access for maintenance purposes It is preferable to use a platform on the ship mast suggested Masthead antenna mounting see Figure 8 1 antenna must be accessible in all directions avoid exposure to exhaust fumes from the funnel avoid strong vibrations avoid interference between other antennas avoid obstacles in the radar beam especially ahead of athwart ships directions view plate inclined 30 with respet to vertical axis 15 vertical dimension and position should be sufficient to reflect antenna beam assumed be 30 Figure 8 1 Masthead mounting view If two radar sets are installed their antennas should be installed on different levels 988 10927 001 8 3 Rev 1 SRT X BAND RADAR SYSTEM INSTALLATION The antennas can be mounted either on a single mast construction so they are on top of each other as illustrated in Figure 8 1 or the antennas can be mounted on a platform like Figure 8 2
80. lements Its own memory in fact has sufficient capacity to store the Operative Program It is using an external U18 EEPROM see figure 9 17 pos 1 for store transmitting parameters The necessary clock pulse of 50 MHz generated by the crystal oscillator In figure 9 19 are displayed the Microprocessor and Gate Array general configuration the main sub systems and how they relate to the pins of the MCU Funtions Performed The main functions performed by the Microprocessor with the Gate Array see figure 9 20 and 9 21 on the basis of commands and selections Remote from Display Unit or Local Trough the Selector are to initialize the TXRX operations to generate the trigger pulse for SRT MOS Board and the trigger TR pulse for the Display Unit and the P M function to generate the PRESTC waveform for the RF Detector asembly STC and the selection commands for band width of Receiver to generate o the VCO forwarded to Mixer o control signals forwarded to SRT MOS SRT Power Boards to receive the signals producing the Antenna rotation to perform the processing on various sensor signals in order to monitor the correct operations of the TXRX unit Microprocessor output signals TR Transmission Trigger CSO CS1 SCK SO Serial Gate Array and EEprom management signals TX Asynchronous serial transmission RES Asynchronous Reset Microprocessor input signals VDLEVEL Main bang Video signal level t
81. locks diagrams of this chapter Basically the unit performs the following functions jit generates the power supply voltages required for the unit s functioning it generates the R F pulses which will be radiated by the Antenna the pulses in X band wave length 9410 30 MHz and with 25 kW peak nominal power can be selected among the following receives the echoes reflected from targets and it converts and amplifies them monitors the unit s correct operations 3 2 1 1 SRT POWER Board SRT POWER Board see figure 9 11 is divided into 2 units LVPS and HVPS it generates all the voltage sources needed by the electronics rack from the original 50 VDC 40 60 The SRT POWER Board is equipped with protection circuits see figure 9 12 to avoid wrong polarity connection over current and over voltage spikes A voltage sensor is connected with microprocessor interrupt request input to provide save state function in case of voltage fall under 40 VDC and to safely perform system shut down without data loss 3 2 1 2 SRT POWER Board Low Voltage Power Supply The LVPS s function see figure 9 13 is to generate the low DC voltages necessary to supply the SRT electronic circuits As input the circuit receives the 50 VDC voltage This voltage filtered and stabilized by suitable solid state components in order to get as output 5V 5V 15 V 15 V 15 Iso 24V to supply all the other electronic circuits
82. ly replacement installation a b Required tools Set of screwdrivers Set of combination wrenches Set of hexagonal wrenches Set of allen wrenches with ends ball Set of Torx wrenches Set T Handle wrenches with swiveling hexagon sockets Set T Handle wrenches with swiveling hexagonal sockets Silicone grease compound 340 Removal On the electric switch board set to OFF the main line breaker relevant to the unit and hang to it a placard reading WORK IN PROGRESS DO NOT SWITCH By performing the operations of paragraph 6 2 2 open the SRT unit cover Unscrew four screws holding protection shield Figure 9 6 pos 4 By means of the proper screwdriver remove the magnetron wires from the terminal Figure 9 15 pos 1 tacking note of their disposition o Unplug yellow and green cables loosing two bolts o Unplug the yellow and green earth cable Remove the electronics rack cabling connectors taking note of their position Table 6 3 describes connectors to be removed and their position in the SRT unit By means of the proper screwdriver unscrew the four screws Figure 9 29 pos 1 fixing the electronics rack to the SRT unit cover Extract the electronics rack from the cover paying attention to the cables and to the rotary joint Figure 9 31 pos 1 988 10927 001 6 8 Rev 1 c BOARD CONNECTOR PURPOSE SRT X BAND RADAR SYSTEM CORRECTIVE MAINTENANCE 6 2 7 1 SRT CONTROL board replacement Figure 9 6
83. mers Integer value indicating the operated time LSB is equal to 1 hour System Integer value indicating lifetime of transceiver LSB 1s equal to 1 hour When the trigger is sourced externally only the first three timers SH MM LL are incremented according the selected pulse External PRF cannot be measured at this time so it 15 not fully correct from a lifetime perspective es external trigger PRF 750 Hz with short pulse 988 10927 001 2 19 Rev 1 SRT X BAND RADAR SYSTEM SPECIAL DETECTION DIGITAL POT INFORMATION SPDPI xx xx xx xx xx xx xx hh lt CR gt lt LF gt Pot ID 6 PM Noise diode current Pot ID 5 Tuning Offset Pot ID 4 Tuning Indication Pot ID 3 PM Distance Power level Pot ID 2 Performance Monitor Open Pot ID 1 PRE STC Slope Pot ID 0 PRE STC Amplitude Notes Potentiometer decimal Value Range 0 99 988 10927 001 2 20 Rev 1 SRT X BAND RADAR SYSTEM SPECIAL DETECTION SECTOR BLANKING SENTENCE 8 2 lt gt lt 1 gt End Sector 2 Start Sector 2 End Sector 1 start Sector 1 Notes Start amp End Sector units are integer degree Es 90 123 1 NEW SECTOR BLANKING SENTENCE PSE3 a x x x x hh lt CR gt lt LF gt L End Sector 1 1 Start Sector 1 1 Value of Sector one 2 Value of Sector two 3 Value of Sector tree 4 Value of Sector four Notes 1 Start amp End Sector units are de
84. monitor 2 In order to install performance monitor perform the removal operations in reverse order 988 10927 001 6 10 Rev 1 SRT X BAND RADAR SYSTEM PART LIST 7 1 CHAPTER 7 PARTLIST Introduction This chapter provides the list SRT X BAND RADAR SYSTEM replaceable parts 7 2 Parts list The part list are divided into major assemblies All parts attached to the assemblies are listed in the following table The Part list tables consist of four columns as follows Column 1 FIG POS Figure Position the column reports replaceable parts position in the reference figure Column 2 DESCRIPTION the column includes descriptive identification data of the replaceable part Column 3 DRAWING SPECIFICATION NUMBER OR TYPE the column reports drawing specification number or type of the replaceable part assigned by the supplier Column 4 REQUIRED QUANTITY N the column indicates for each replaceable part how many of them are assembled on the equipment 7 3 Part location illustration The following figure and the figure in chapter 9 provides the location of the components Position numbers of items shown in the figure are referenced in related Parts list tables 988 10927 001 7 1 Rev 1 SRT X BAND RADAR SYSTEM PART LIST 7 4 Part list table REQUIRE D QUANTITY N Table 7 1 System part list FIG POS DESCRIPTION PART NUMBER 988 10927 001 7 2 Rev 1 SRT X BAND RADAR SYSTEM INSTALLAT
85. na support structure with 4 screws This support structure makes the antenna more rigid against wind and vibration 1 4 2 Pedestal The Pedestal is composed of a metal cabinet see figure 9 3 pos 1 made of Aluminum treated with anticorrosive paint in order to be saline atmosphere resistant The cabinet is 988 10927 001 1 3 Rev 1 SRT X BAND RADAR SYSTEM DESCRIPTIONS AND MAIN CHARACTERISTICS provided with a cover see figure 9 4 pos 2 fixed to the cabinet by four screw pos 1 the cover can be opened to allow an easy access to the internal components In that part of the cabinet which is on the same side as the cover hinge se figure 9 3 pos 2 the following items are located screw for the grounding connection of the Unit to the ship structure pos 4 main connector pos for the connecting cable with the Display Unit used also for the power supply In Upmast configuration when the cover is open it is possible to access the following internal units see figure 9 4 Connecting Terminal Board Electronics Rack pos 4 Brushless Motor Controller board pos 5 Motor Unit pos 6 Head see figure 9 28 1 4 2 1 Main connector The Main Connector see figure 9 3 pos 3 is mounted at the bottom of the Pedestal cabinet pos 1 This main connector allows the connection between the Display Unit or the optional SRT Adapter Box and the Pedestal Unit including the Motor
86. ng screws and fix the cover 4 On the electric switchboard set to ON the power breaker relevant to the unit and remove the warning placard 988 10927 001 6 3 Rev 1 SRT X BAND RADAR SYSTEM CORRECTIVE MAINTENANCE 6 2 3 Motoreducer assembly replacement a Required tools Set of combination wrenches Set of hexagonal wrenches Set of allen wrenches with ends ball Set T Handle wrenches with swiveling hexagonal sockets Silicone grease compound 340 The motoreducer assembly is composed of a b 1 2 motor unit Figure 9 5 pos 1 gearbox pos 2 6 2 3 1 Motor unit replacement Removal On the electric switch board set to OFF the main line breaker relevant to the unit and hang to it a placard reading WORK IN PROGRESS DO NOT SWITCH By following the procedures of paragraph 6 2 2 open the SRT unit cover Take note of connections displacement in order to be able to reconnect the cables in the proper positions Unscrew contacts and power supply from brushless motor driver Holding the motor unit with the gearbox remove the four screws Figure 9 5 pos 4 fixing the group 1 and pos 2 to the support and remove the group To separate the motor unit from the gearbox using the proper hexagonal wrench loose and remove the four screws pos 5 and loose the screw pos 6 Installation Check for the integrity of the new motor In order to install the motor unit with the gearbox perform the rem
87. ns 0 40 ps lt 180ns 10 90 continue 988 10927 001 2 5 Rev 1 SRT X BAND RADAR SYSTEM SPECIAL DETECTION Serial interface RS232 terminated 3 KO SEROUT TX Signal Standard RS422 terminated 120 Q selectable SERIN Baud rate 4800 Avi 4 to 11 V high level iti mplitude 128 1024 4096 pulses per antenna revolution ACP Load 2 2 ACPIN Pulse width 4 to 11 V high level Antenna reference Amplitude One pulse for revolution ARP ARPIN Pulse width Antenna start TER Open collector output 100mA oa ANTS Antenna rotating when ANTS is shorted to ground Position data Amplitude RS 422 balanced output UA1 nUA1 Antenna reference Amplitude RS 422 balanced output UA0 nUAO Power on Amplitude From 3 V to 30 V to power up transceiver electronics PWON Antenna speed sone SPD Amplitude From 2V to 5V Table 2 10 Requirements 988 10927 001 2 6 Rev 1 SRT X BAND RADAR SYSTEM SPECIAL DETECTION 2 5 NMEA Transfer Protocol 2 5 1 Abbreviations RDC Radar Display Console Transceiver TX RX CRC Checksum Field Yes data valid warning flag clear V No data invalid warning flag set Variable Numbers Variable length integer or floating numeric field Optional leading and trailing zeros The decimal point and associated decimal fraction are optional if full resolution 1s not required example 73 10 73 1 073 1 7
88. ocal stand by 988 10927 001 2 4 Rev 1 SRT X BAND RADAR SYSTEM SPECIAL DETECTION The SRT works independently from the console with short pulses The SRT works independently from the console with medium pulses The SRT works independently from the 10 SRT console with long pulses Position rotary SRT in local with long pulse and performance board switch monitor with auto tuning and antenna rotation Standby mode Standby mode Service mode long pulse Performance monitor ON Autotune Antenna rotating Table 2 9 SRT X BAND RADAR SYSTEM semi operative controls 2 4 I O requirements In this paragraph are reported the minimum and maximum values of input and output related to the SRT X BAND RADAR SYSTEM The tables has been divided into four columns of which SIGNAL NAME Type of Signal analyzed Identifies the type of signal being analyzed DESCRIPTION TYPE Reference values that should appear during the measurement in case of correct operation VDOUT Terminated 75 Q always present on Board Bandwidth 2 5 24 MHz 3 db DC level OV 2 TROUT 300 1500 750Hz SSS 3000 1500 750 Hz Pulse width 1 28 uS min Functionality Trigger point at low to high transition s 180ns 10 90 Polarity Positive TTL 50 Q 75 Q 0 15 Amplitude high impedence Programmable pretrigger output 2000 PTROUT Pulse width 640 10240
89. onditions of each connector electric contacts pins and plugs connector packing and of its cable Clean contacts by using Electro Contact Cleaner Repair or replace if necessary any defective part 5 Check the gear integrity Add grease if the gear shows lack of lubrication Check carefully that all cabinet internal screws are not loose Replace or tighten firmly as necessary Cleaning is necessary only when layers often dark layers can be clearly seen on some areas If these layers are visible they must be removed with a dry cloth Only if really necessary repeat the procedure with cloth dampened in carbon tetrachloride A special brush for cleaning of appropriate size may also be used If and when necessary use an air brush to remove dust from inside the pedestal By using a soft brush and alcohol remove dust ash and grease from the internal components Dry the surfaces by using a soft cloth Grease the fastening screws to avoid corrosion and facilitate future inspections and fix the cover Close the equipment cover by following the reverse procedure On the electric switchboard set to ON the power breaker relevant to the unit and remove the warning placard Table 4 4 Preventive maintenance Card 2 STEP EY EN 6 B EX 12 10 11 12 3 1 988 10927 001 4 3 Rev 1 SRT X BAND RADAR SYSTEM PREVENTIVE MAINTENANCE CARD 3 UNIT OPERATION PERIODICITY Magnetron replacement
90. oval operations in reverse order Close the cover following the procedures of paragraph 6 2 2 6 2 3 2 Gearbox replacement Removal On the electric switch board set to OFF the main line breaker relevant to the unit and hang to it a placard reading WORK IN PROGRESS DO NOT SWITCH By following the procedures of paragraph 6 2 2 open the SRT unit cover Take note of connections displacement in order to be able to reconnect the cables in the proper positions Unscrew contacts and power supply from brushless motor driver Holding the gearbox with the motor unit remove the four screws Figure 9 5 pos 4 fixing the group 1 and pos 2 to the support and remove the group To separate the gearbox from the motor unit using the proper hexagonal wrench loose and remove the four screws pos 5 and loose the screw pos 6 988 10927 001 6 4 Rev 1 b SRT X BAND RADAR SYSTEM CORRECTIVE MAINTENANCE Installation Check for the integrity of the new gearbox In order to install the gearbox with the motor unit perform the removal operations in reverse order Close the cover following the procedures of paragraph 6 2 2 6 2 4 Brushless motor controller replacement a b Required tools Set of screwdrivers Set of combination wrenches Silicone grease compound 340 Set of Torx wrenches Removal By following the procedures of paragraph 6 2 2 open SRT unit cover Disconnect the brushless motor controller Figure 9 4
91. per wire 25mm between the ground terminal on the SRT unit and the radar mast 8 4 2 Safety switch The safety switch is supplied by the manufacturer Cable from the safety switch to the SRT unit is not included Following the steps check safety switch is placed as described in paragraph 8 3 Mechanical installation connect the two poles of the safety switch on TB1 of DISPLAY CORE unit carefully make sure that the switch is closed to 1 ON position and open to 0 OFF position 988 10927 001 8 9 Rev 1 SRT X BAND RADAR SYSTEM INSTALLATION Cable diamter 18mm Connection cable Figure 8 9 Safety switch view 8 5 System setup procedures This paragraph provides information concerning the preliminary controls and procedures to be done as a completion of the electrical installation and before supplying the unit with power and before performing the system setup procedure carry out a careful visual inspection of the installed components referring to the layouts of the unit and to the interconnection drawings carefully check the integrity of the fuses NOTE Feed the SHT X BAND RADAH SYSTEM is not included in the pre setup procedure 8 5 1 Ship power voltage SRT unit is connected to ship main voltage through the DISPLY UNIT or SRT ADAPTER BOX Cable section shall be 2 4mm to support a 15A current 8 5 2 Compass safe distance Every unit
92. potentiometer information or value upgrade Sentence CFG only for first setup Sentence SPD only for first setup and when the motor controller is changed Data transmission rate from TXRX are Sentence ST2 1 Hz normally Sentence DAT connection depending 1 Hz Interfaces 150ms Sentences DPI SE2 and SE3 on request Sentences TIM on request and each 30 minutes of interval after power on Sentence NAC when necessary Sentences HT2 1 Hz normally Sentences DT3 1 Hz normally Sentences PACC every 20 secs Sentences CFG on request Sentences SPD on request Sentences RGD on request 988 10927 001 2 29 Rev 1 SRT X BAND RADAR SYSTEM SPECIAL DETECTION Error Code MESSAGE ERROR CODE MEANING COP CO2 Field not in compliance with specrfication issing transceiver control CRC ERROR Field not 1n compliance with specification Wrong sector value Field not in compliance with specification Wrong sector value Field not in compliance with specification Missing command type Initialization value outside limits CRC ERROR Field not in compliance with specification Wrong potentiometer ID Potentiometer value outside limits DM E 01 Field not in compliance with specification 1 01 Field not 1n compliance with specification 01 Field not in compliance with specification DLY 00 CRC ERROR 01 Trigger field not 1n compliance with specification 02 Pretrieeer field not in compliance with specification 988
93. quency MM Medium pulse Medium frequency U U Short pulse External trigger 988 10927 001 2 17 Rev 1 SRT X BAND RADAR SYSTEM SPECIAL DETECTION DATA SENTENCE SPDAT hh hh hh xxx xx xxx x hh lt CR gt lt LF gt _ Software Revision From A to Z Warm Up time 2 Proeram Software Version gt 80 Inner transceiver temperature 1 L Magnetron Peak Current Range 00H FFH L Main Bang Amplitude Range 00H FFH L Power Level Range 00H FFH Notes 1 Transceiver temperature From 99 to 99 Celsius degree signed value 2 Warm Up time calculated in seconds when null becomes TXRX READY Value of power level main bang and magnetron peak current during sector blanking are frozen 988 10927 001 2 18 Rev 1 SRT X BAND RADAR SYSTEM SPECIAL DETECTION TIMERS INFORMATION hh lt CR gt lt LF gt Timers validity valid Invalid System timer 4 Timer M Pulse Low Freq Timer S Pulse Low Freq Timer S Pulse Medium Freq Timer L Pulse Low Freq 3 Timer M Pulse Medium Freq Timer S Pulse High Freq Timer Standby Status 3 Status 2 2 Status 1 2 Notes Status 1 Magnetron Type label Status 2 2 Integer value indicating the magnetron end of life from 0 to 999 gt 100 mean end of life Status 3 Spare S Ti
94. ransmitter properly POWER signal 992 link SRT POWER Replace SRT 2M board and make sure the LED is missing DL2 lights on properly CONTROL board Check DL1 LED status and Connect the 24VDC measure voltage on TB2 on of voltage to the SRT POWER board transmitter properly Voltage supply is too low Check magnetron transmission hours and current and need check Replace magnetron on console The safety switch is Check switch position and Close the safety switch open continuity or replace it Disconnect 700 V cable from TB3 High voltage of SRT POWER board disconnect generator is motor cables turn S1 on SRT damaged CONTROL board on position 3 and make sure DL3 is off Magnetron exhausted Replace SRT POWER board continue 988 10927 001 5 2 Rev 1 SRT X BAND RADAR SYSTEM TROUBLESHOOTING Cable between encoder and SRT Check electrical continuity of the Replace cable Control boards is cables Interrupted Check input and output azimuth Replace the damaged ged signals on SRT CONTROL board board Adjust high voltage values on SRT POWER board Check if 24VDC voltage value Connect the 24 VDC Brushless Motor Controller ends is voltage to the controller low or missing properly High voltage is too Check magnetron current and 700 low VDC voltage value Motor power supply is 11 missing Motor power supply is Check brushless if motor
95. ro M 12 C il 3 5 2 iL ON To Output From Bearing Interface Circuit HI 2 TR P MHz TR PL TR TR STC STC Link P1 4 P2 VD TST Dis TX Comb RX Comb To Input Interface From Safety SW ANTBLK rom Int L From Interlock From SRT_Power 1 HVOI Tunen To internal Monitor Tunen HV Stop From SRT_Mos MPLC Figure 9 19 SRT CONTROL board microprocessor and gate array 988 10927 001 9 19 Rev 1 988 10927 001 SRT X BAND RADAR SYSTEM FIGURES Receiver 232 From Display and 422 Level From SRT_Mos translator and Peak Hold Level translator and Peak Hold From RF Detector Level translator and Buffer From Bearing Reader From Interlock From Safety SW Level translator and Buffer From P3 SRT_Power Controlled From Display VD Out J4 Buffer Figure 9 20 SRT CONTROL board input interface 9 20 To Microprocessor To Gate Array To Microprocessor To Microprocessor From Gate Array To Microprocessor and to Gate Array To Gate Array From Gate Array Rev 1 988 10927 001 From D A Converter U15 From Gate Arr From Gate Array From RF Detector From Gate Array From Microprocessor P PL iL ON Buffer and level adapter Buffer and level adapter Speed Controller interface Level translator and Buffer Level translator and Buffer Driver 232 9 21 S
96. s closing Jumper J8 can be performed only by a technician For this following table refer to figure 9 17 TEST POINT DESCRIPTION TEST POINT DESCRIPTION HVON High voltage ON TP16 LINE Input voltage sense Power Supply from Tx data signal in PWON Test signal configurable 27 Power Supply from Video input from RF SRT PWR DC board TESI Detector board TP20 VDOUT Video output voltage TP7 15V GUPPY TP21 RX Serial data reception SRT PWR DC board Power Supply from Serial data TP9 PWON 24 V needed to switch TP23 AZOUT antenna azimuth OUT on the system output TP10 VFIL Magnetron heater TP24 HL OUT Antenna heading line voltage output 11 5V Power Supply from TP25 TRPUSH Modulator trigger SRT PWR DC board push control TP12 PREST Short range fixed TP26 TRPULL Modulator trigger pull C attenuation control TP13 ANTS Antenna start output TP2 MOTOR Motor current sense CURRENT TP 4 TROUT Trigger output TP28 GND 15 Rx data signal in TP29 GND Ground B combined mode Table 2 8 SRT CONTROL board test point POSITION FUNCTION SRT X BAND TXRX cover interlock switch for disabling high voltage RADAR power and interrupt the transmission SYSTEM It selects the TXRX unit operation mode as follow see figure 9 11 10 Dosition FUNCTION board rotary SRT under external control 1 switch SRT under external control 2 SRT in l
97. s motor rotation speed by means of variable voltage signal VEL coming from SRT Control Board An enable control 5V signal is produced as well start for safety purpose Turning the safety switch off results in preventing motor from rotating see figure 9 26 3 2 4 Motor unit The Motor Unit on which 12 X Band Antennas is mounted is equipped with an Electric Motor powered by the Brushless Motor Controller board in the casting see figure 9 5 The motion is transferred to the X BAND ANTENNA through 2 with a total reduction ratio of 120 1 The ANTENNA nominal angular speed can be 2 20 rpm 988 10927 001 3 39 Rev 1 SRT X BAND RADAR SYSTEM SPECIAL DETECTION On the SRT Control board it is applied a SAFETY SWITCH This switch positioned outside the equipment when open disables in the SRT the power supply for the Motor Unit and inhibits RF emission thus achieving safety condition when personnel have to operate on the equipment both for maintenance and for repairing The wiring from the switch enters in the equipment through the smaller stuffing tube The installation is compulsory and it is recommended to install the switch at the bottom of the mast stairs giving access to the Unit NOTE Before performing any service the Antenna SWITCH OFF the Safety Switch 3 2 5 Encoder The function of the Encoder is to increase the angular resolution of the azimuth and heading signalto 4096 pulses for revolution
98. should be located outside the minimum magnetic compass safe distance according to the following table SAFE DISTANCE DISTANCE REUCED REDUCED SAFE DISTANCE TO DISTANCE TO TO STANDARD TO STEERING UNIT TYPE m STANDARD STEERING MAGNETIC MAGNETIC COMPASS m COMPASS m COMPASS m COMPASS m SRT 25 002 SRTAB 001 Table 8 1 Compass safe distance table 988 10927 001 8 10 Rev 1 SRT X BAND RADAR SYSTEM INSTALLATION 8 6 Multicore cabling and termination principle 8 6 1 Installation instructions Multicore Cable Technical Specification AM113L330 R AM113L330 B AM115L280 R AM113L330 J G V mmm Gas AM115L280 SHIELD 1131 280 Bk E m OUTER INSULATION J Jellow W White Bk Black PEH 2J21T Power supply cable Black 1 5 Black 2 5mm Shield 4 shielded Coax RJR37 twisted pair Ground cable 2 5 Coax RKB15 Power supply cable Red 0 35 gt Red 1 5mm Blue 0 35mm2 White 0 35mm Figure 8 10 Multicore cable overview 988 10927 001 8 11 Rev 1 SRT X BAND RADAR SYSTEM INSTALLATION Cable handling Dismantle the outer insulation of the cable for 60 cm S PM 5259 P Remove most of shield let it be 5 with shield perceptive to vision 5 cm remaining shield lt
99. stacles are sufficiently far from the antenna they will result in a blind sector on the radar display with approximately the same amplitude as observed by the human eye but these obstacles can produce false echoes An echo produced by an obstacle close to the antenna can be suppressed by reflecting the antenna beam skywards by mounting a reflector made of metal as also illustrated in Figure 8 1 This solution however does not eliminate the blind sector but will reduce false echoes produced by the obstacle The best position for the reflector can be found by testing out different positions It is highly recommended that the shipyard submit the drawings of the radar antenna position to the manufacturer for approval 988 10927 001 8 5 Rev 1 SRT X BAND RADAR SYSTEM INSTALLATION The installation consists of following basic steps mount the unit without the antenna the mast make relevant connector install and connect performance monitor arm install safety switch mount antenna on the unit NOTE SRT X BAND RADAR SYSTEM should be installed in such way that the performance monitor arm is not facing funnels or other big ships obstruction Sector blanking is enabled to prevent false echoes caused by funnels and or big ships construction see above If performance monitor arm is positioned within this blanking area the pedestal must be turned because the radar performance monitor is not working where there is no transmiss
100. stal with 12 Feet Antenna see figure 9 4 The contents of the present technical manual are arranged in 10 Chapters as follows WARNING Chapter 1 DESCRIPTIONS AND MAIN CHARACTERISTICS Chapter 2 OPERATION Chapter 3 FUNCTIONAL DESCRIPTION Chapter 4 PREVENTIVE MAINTENANCE Chapter 5 TROUBLESHOOTING Chapter 6 CORRECTIVE MAINTENANCE Chapter 7 PART LIST Chapter 8 INSTALLATION Chapter 9 FIGURES 1 1 2 SRT X BAND RADAR SYSTEM purpose The SRT RADAR SYSTEM when connected to a Display Unit not described in this manual performs the following functions treceives the radar controls from the Display Unit connected to the equipment tgenerates and receives the RF pulses t processes the RF pulses t sends the radar data and controls to the Display Unit The equipment s power supply 48 VDC is given by the Display Unit or from the SRT Adapter 988 10927 001 1 1 Rev 1 SRT X BAND RADAR SYSTEM DESCRIPTIONS AND MAIN CHARACTERISTICS 1 2 List of abbreviation Very often navigation related informations are presented using the standard terms or abbreviations Measurement abbreviations according to MIL STD 12 other terms and abbreviations used in the present manual are listed in table 1 1 ABBREV TERMINOLOGY ABBREV TERMINOLOGY AC ACP ARP AZ dBm DC NA DC Direct current Display Core Unit RDC Az Antenna azimuth pulse Normally Opened RX Receiver Metal oxide semi conductor Table 1 1
101. ter is OK PRT flashing Transmiterisok continue 988 10927 001 2 1 Rev 1 SRT X BAND RADAR SYSTEM SPECIAL DETECTION Transceiver is not D23 Green trasmitting data to the console If Power Supply on 973281 2 Fixed SRT PWR DC board gt board 42V D26 If power supply on SRT PWR DC board lt 38V Combined video or serial configurations is determined by settings the Jump J10 Table 2 2 Behaviour LEDs in combined video PART BOARD NUMBER CODE FREQUENCY FUNCTION Presence of 5 V n supply feed 973501A1 or presence of 5 V SRT DOWN Nim feed ADAPTER antenna rotation 973501A1 Do not enable the antenna rotation Table 2 3 Behaviour LEDs on SRT DOWN ADAPTER board Vfl lt 4 5V and gt 8V 24V voltage lt 18V or gt 30 V 15V voltage lt 14 V or gt 16 V If no packet has been received after 5 seconds Ifthere is a CRC failure in receiving a packet If the interlock is open Table 2 4 LED D3 SRT ADAPTER board status blinking red 988 10927 001 2 2 Rev 1 SRT X BAND RADAR SYSTEM SPECIAL DETECTION PART BOARD NUMBER CODE FREQUENCY FUNCTION It indicates the presence of the DL1 Green ON 24VDC power supply SRT POWER board 973261A3 DL2 Green ON It indicates the presence of the 5V It indicates the DL3 ON presence of High Voltage Table 2 5 Behaviour LEDs on SRT POWER board PART
102. that no parts of the plastic covering the Antenna have been painted Check the casing preservation state If paint has been scratched off at any point proceed as follows Carefully degrease the part to be painted Smooth lightly with emery paper Clean with dry brush Apply a coat of anticorrosive paint When the applied anticorrosive is dry paint with a brush or better still by spraying 4 On the electric switchboard set to ON the power breaker relevant to the unit and remove the warning placard Table 4 3 Preventive maintenance Card 1 988 10927 001 4 2 Rev 1 SRT X BAND RADAR SYSTEM PREVENTIVE MAINTENANCE CARD 2 UNIT OPERATION PERIODICITY SRT X BAND Internal inspection and general cleanin 52 RADAR SYSTEM PERSONNEL REQUIRED INSTRUMENTS REQUIRED TIME Set of socket hexagonal wrenches electro contact cleaner soft brush soft cloth dry cloth alcohol 15 minutes carbon tetrachloride silicone grease air brush SAFETY PRECAUTIONS On the electric switchboard set to OFF the power breaker relevant to the unit and hang to placard reading WORK IN PROGRESS DO NOT SWITCH STEP SEQUENCE OF OPERATIONS 1 Position the Antenna as shown in figure 9 1 By means of the proper socket hexagonal wrench unscrew and remove the four screws see figure 9 4 pos 1 locking the cover pos 2 and open the former By using the soft brush and vacuum cleaner remove the dust into the unit Check the c
103. ty switch The pedestals have also been prepared for the installation of an external safety switch which can be mounted on or near the platform This switch removes the power from the Pedestal eliminating the possibility of accidental operation during servicing and also causes disabling of transmission The safety switch disable the Antenna movement during maintenance operations and avoids high voltage damage Always turn the safety switch off whenever advised in this manual for instance before performing any maintenance or installation procedure Ignoring safety switch operation may produce hazard of electrocution as well as other severe injuries 988 10927 001 9 1 SRT X BAND RADAR SYSTEM SOFTWARE REVISION This paqe is intentionally left blank 988 10927 001 10 1 SRT X BAND RADAR SYSTEM DESCRIPTIONS AND MAIN CHARACTERISTICS CHAPTER 1 DESCRIPTIONS AND MAIN CHARACTERISTICS 1 1 Introduction 1 1 1 Manual applicability The present technical manual provides information data and procedures relevant to general description operation functional description scheduled maintenance troubleshooting corrective maintenance and replaceable parts list of the SRT X BAND RADAR SYSTEMS consisting of 25 kW pedestal and 12 feet antenna For brevity of description reference to the equipment in this manual can also be made by means of the Manufacturer code name MAN SRXUP 003 SRT X BAND RADAR SYSTEMS with 25 kW Pede
104. us main parts forming the unit there is further materiel included in the delivery Those additional things are Technical manual with installation manual included Installation kit terminals clamps connectors etc Standard spare part kit fuses The installation kit and the spare part kit is necessary for the installation and operation of the equipment and must be kept by them who perform the installation work Kit contents should be checked immediately after unpacking using the materials list contained in the box The manufacturer will not accept claims for missing items unless presented immediately after unpacking 8 1 3 Storage After the material contained in the boxes has been inspected in the presence of customer and it has been verified that no damage has occurred the unit shall be stored in its original packing until the time of installation The storage premises must be dry and well protected 988 10927 001 8 1 Rev 1 SRT X BAND RADAR SYSTEM INSTALLATION If the units must be kept in storage for more than one month it is advisable to insert hygroscope substances such as silicone gel salts in the crates 8 1 4 Handling Antenna and pedestal must be run up the mast separately and then assembled The pedestal is lifted by crane Use slings attached to the eyebolts fitted on top of the pedestal Minimum angle at the base is 60 see Figure 8 5 The pedestal contains delicate electronic components hand
105. x hh lt CR gt lt LF gt value in rpm of fast antenna speed value in rpm of medium antenna speed value in rpm of slow antenna speed value Request F Factory preset 2 A auto adjust 2 maximum speed else NULL The values accepted are from 10 to 80 rpm Notes Factory pre set 15 available for latest TX RX versions 2 Auto adjust process take lot of time Sentence should be sent under operator request only Application of value 15 immediate but storage of this one not volatile memory will take place after 20 seconds from last change 988 10927 001 2 12 1 SRT X BAND RADAR SYSTEM SPECIAL DETECTION TRIGGER PRETRIGGER DELAY AND PRETRIGGER LENGTH SPDLY xx xx xx hh lt CR gt lt LF gt Trigger Advance Delay in 201 units Max value is 127 2 56 usec Pretrigger length in 10ns units Max value is 511 5 12 usec Min 48 480ns to request values back Pretrigger Advance Delay 2008 units Trigger advance delay A delay 1 inserted between trigger and video delaying the pulse transmission Max delay 2047 units 40 96 usec Minimum Delay 0 All numbers are positive starting from 0 988 10927 001 2 13 Rev 1 SRT X BAND RADAR SYSTEM SPECIAL DETECTION CONFIGURATION SET SPCFG x x x xxxx h a hh lt CR gt lt LF gt Optional parameters 12 bits in hex format 4 bits in hex format Performance monitor available Short Pulse Set Ant

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