Technical Description/Installation manual Synchro/Stepper
Contents
1. page 12 20 Doc No 9102L2 doc Oe 8 NMEA check disable This menu is used to set the NMEA parameters ROT disable Entering 1 will toggle computation and insertion of NMEA ROT message between off and on with HE HC TI and II sentence formatters Set NMEA update frequency 1 s Entering 2 will display a choice of updating frequencies 1 2 5 10 20 30 and 40 Hz Note that the higher update frequencies will cause severe NMEA channel load and that 30 Hz setting is only possible using baud rates higher than 4 800 Set NMEA baudrate 4800 bps Entering 3 will give a choice of baud rates 1 200 2 400 4 800 NMEA 0183 and IEC 61162 1 standard setting 9 600 19 200 38 400 NMEA 0183 HS and IEC 61162 2 standard setting and 57 600 Set NMEA talker id HE Entering 4 will give a choice of different talker identifier settings Set NMEA header sentence HDT Entering 5 will give a choice of different sentence formatters POWEO at reset disable S2N will identify itself using a valid PQWEO proprietary message and entering a 6 will enable disable this function A typical message will look like SPOWE Oy 9027720 100047990027 0 20 Where 9027 B0 is the unit number of S2N including the revision designator 10004 is the serial number and 99002 0 1 2 is the software designator with definition of version status Log Level INFO Entering2. where X is the main menu number is listed below Pressing Set again displays P X Y where Y is the submenu number Description of the Set up menu system 1 Product data Read only 1 1 Product e g 9027 designation is for bare board version used in all S2N configs 1 2 Product rev e g CO 1 3 Production year 1 4 Production month amp day 1 5 Serial number 1 6 Boot 1 7 Boot version 1 8 Application 1 9 Application version 1 10 Application download year 1 11 Application download month amp day 1 12 Runtime limit 1f active 2 Main mode 2 1 Main mode synchro stepper 2 2 Log level none debug info disturbance recoverable page 8 20 Doc No 9102L2 doc Ce 3 NMEA 3 1 Baudrate 1200 2400 4800 9600 19200 38400 57600 3 2 Power on message off on 3 3 ROT message off HE TI H 3 4 Heading update rate 1 2 5 10 20 30 40 times sec 3 5 Heading sentence HDT HDG THD 3 6 Heading talker id HE II 3 7 Transmit checksum off on Note 40 Hz output rate is only possible with SW ver 0 6 0 and later 4 Synchro 4 1 Input range 11V 90V 4 2 Gear ratio 360x 180x 90x 45x 36x 1x 4 3 Reference frequency DC AC 20 1000Hz 50 60Hz 400 600Hz 5 Stepper 5 1 Gear ratio 360x 180x 90x 45x 36x 6 Preset 6 1 Preset values off default sync 1 sync 2 sync 3 sync 4 Choosing one of the preset values will affect other setti
3. referenced to the fourth one Oe Doc No 9102L2 doc page 7 20 Connect these three wires to S1 S2 S3 Other wires are not required Note that the Phase inputs S1 S2 S3 are floating and that stepper outputs with open collector or similar requires load from connected repeater or resistors to common ground wire As an alternative internal AGND with 47 kohm to each phase input can be connected to input terminal R1 using jumper P13 4 2 Set up using internal display Note This section is not relevant for version 9027B without display Keys Set Enters data or enters menu Exit Exits data entry or menu Dim In heading display Dim others increment menu or data Dim In heading display Dim others decrement menu or data Graphical overview of menu system Operation se Exit Alien Setup gt Test gt Play 4 2 1 Alignment mode This mode is used to align the gyro converter output with the sensed heading of the gyro compass when operating from geared synchro or stepper Pressing Set displays A XXX X with a blinking A With the and keys the displayed heading will increment or decrement Once values displayed on S2N or on equipment connected to it press Set and the unit will directly return to normal operation 4 2 2 Set up mode This mode is used during installation to adopt S2N to the gyro output format Pressing Set displays P X
4. 7 will give a choice of log level information NMEA check disable Entering 8 will toggle generation of NMEA check sum on and off Note that all NMEA 0183 versions from 2 30 and IEC 61162 1 require this to be left in its On state for standard compliance 4 3 3 Sub menu 3 Synchro parameters Entering 3 will output the following sub menu Synchro menu EXEL Change Trom Synchro Lo Stepper Set synchro gear ratio Auto set synchro input range Change input range from 11V to 90V Oe Doc No 9102L2 doc page 13 20 5 Set synchro reference frequency Entering 1 will change the setting to stepper format Entering 2 will give access to a submenu where gear ratios 360 180 90 45 36 and 1 1 are possible to set All ratios except 1 1 will require alignment input to start outputting valid data Entering 3 will automatically detect the synchro phase voltages and will set the input range scaling to the optimum value Entering 4 will over ride this function which can be useful in situations where it is necessary to perform set up without synchro inputs connected Entering 5 will display the following menu Set synchro reference frequency AC 20 1000Hz Exit DC AC 20 1000Hz AC 50 60HZ AC 400 S500Hz Entering 1 will put the unit in DC synchro mode which is most uncommon This will disable the reference input and tie this positive internally Entering 2 will set t
5. NMEA IN A and NMEA IN B Baud rate 4 800 b s 1200 to 57600 settable Message format Proprietary PQWE messages for set up and alignment simple menu driven text terminal mode with JP7 set see set up section 3 3 NMEA 0183 IEC 61162 1 or 2 main output Output driver Based on RS485 driver with differential signalling using 0 and 5 V fully compliant to IEC 61162 1 2 standard Output driver is powered from regulated DC input and should be connected to isolated NMEA 0183 IEC 61162 1 or 2 receivers Output current 50 mA maximum Connections Spring loaded terminal block accepting up to 2 5 mm cable ends marked NMEA OUT A NMEA OUT B and NMEA OUT C Polarity A connection idles negative referred to B C terminal This is included for full IEC 61162 2 compliance intended for inner screen or separate grounding wire and is internally connected to ground voltage of output driver Common installation practice for standard NMEA 4 800 b s operation 1s to use shielded twisted pair cable and to connect shield in transmitting end only Baud rate 4 800 b s 1200 to 57600 settable Message formats Standard HEHDT with one decimal transmitted at 1 Hz which is appropriate for VDR AIS installations New THD expected in next version of standard or HDM sentence formatters talker identifiers and transmission frequency and averaging properties can be tailored to suit any s
6. Qwerty elektronik will also not take any responsibility for any damage or injury caused by electric voltages fed from other equipment such as gyro compasses Oe Doc No 9102L2 doc page 5 20 4 Installation and set up Note Some gyro voltages may be hazardous and the cover plate of the unit shall only be opened by qualified personnel No such voltages are accessible outside the unit 4 1 Gyro output formats and connection to signals Note EMC compliance using the boxed version 9028C requires all connection to be made using shielded cables only Please note that the cable glands are designed to connect to the cable screen To make this connection remove the outer insulation of the cable and trim the exposed shield to be some 5 mm in length then push t down over the outer insulation and push the shield until it connects to the contact fingers For bare board versions 9027B 9027C and 9033C responsibility for EMC requirements compliance has to be solved by external mounting installation shielding 4 1 1 Synchro brief description The diagram shows the amplitude variations as a function of the heading S1 S3 S2 S1 S3 S2 1 23 45 67 89 111 133 155 177 199 221 243 265 287 309 331353 Heading degrees In the synchro transformer format the angular value is transmitted using a rotating transformer with three windings spaced 120 All three windings carries signals derived from
7. accuracy of conversion emer handling and accepted turn rate and has bean approved for the applicant wie oben as above t r den nachstehenden Verwendungszweck zugelassen for the following application Einsatz als Schnittstellenwandler f r Gyrokompasse analog stepper in serielles Datenformat zum Anschluss an Navigationssysteme wie z B RADAR ECDIS AIS VDA sowie zus tzliche Gyro Tochteranzeigen Gyro converter fo conven syncre siepper information to senal IEC Gi 162 2 data format to connec navigational systems as e g RADAR ECDIS AIS VOR and additional GYAO repeater displays Gepr ft wurde die Version S2N Gyroconverter 9028C S N 10252 SW version 0 6 xx Tesied version was Die Zulassung berechtigt zur Anbringung der Baumusternummer Nummer der Baumusterpr f bescheinigung With the approval it is granted fhal he equipment can be labellad with the hype approval number De cenificara Hamburg 26 05 2004 be To a on behal i FPreuss Vers 04 05 2004
8. menu it is possible to permanently remove this function 4 3 6 Sub menu 6 Measurement and calibration Entering 6 will output the following sub menu Measurement menu Exit A D measurement amp calibration Show synchro angle Change synchro input range from 11V to 90V Measure Synchro reference Trequency Show stepper relative angle OB WN EF OO These submenus give access to various functions intended for calibration and for advanced trouble shooting debugging and should not be used unless specific documentation describing this is available Sub menu 2 displays decoded synchro angle regardless of input signal quality and can be useful during installation for monitoring heading input Sub menu 4 can be used to perform a sanity check on the reference frequency connected to RI R2 Sub menu 5 can be used to check stepper decoding during installation Warning Do not enter Calibrate sub menu system unless proper instructions and required calibration equipment are available 4 4 Set up using serial input output and proprietary NMEA messages Enter setup mode PQWEI 1 All other NMEA transmissions will stop during setup mode Exit setup mode PQWE1 0 EEPROM is stored normal NMEA transmission is restarted Set get parameter If ParameterValue is empty get is assumed PQWE2 ParameterGroup ParameterNo ParameterValue Oe Doc No 9102L2 doc page 15 20 gives response PQWE3 ResponceCode ResponceTex
9. to a Yes using the key and then pressing Set the playback will commence displaying P XXX X with a blinking P Exit returns to Play submenu 4 3 Terminal style set up using serial input Set up is performed using a simple TTY type text based interface An asynchronous serial terminal most common would be a PC running Windows based HyperTerminal or any other terminal emulating software 4 3 1 Connecting to PC Terminal Connect to a RS232 serial port of a PC as follows Connection Connection PC S2N The serial 9 pole male NMEA INA Dsub connector shown as NMEA IN B chin ch Viewed from the outside NMEA OUT A pins pointing towards the NMEA OUT C viewer Caution Connecting directly to RS232 port as defined above will make NMEA output C internal GND connected to ground connection of the used computer This may cause ground failure indication of the ship unless an isolated notebook computer is used Note that some older computers will not accept a zero voltage as low making it necessary in some cases to use the NMEA Oe Doc No 9102L2 doc page 11 20 OUT B rather than C to RS232 GND For a 25 pole Dsub use pin 3 instead of 2 pin 2 instead of 3 and pin 7 instead of 5 Note Polarity designations A and B are well defined in NMEA standard as well as RS232 connections of a PC but designation of balanced RS422 ports using and is somewhat unclear fla
10. 0 x 82 x 36 mm mounting flanges adds 15 mm on each side and can be mounted for panel mount shown or for bulkhead mount Mounting Front panel mounting in 145 x 82 mm panel opening Bulkhead mounting on any flat surface For bulkhead mounting in very tight spaces it 1s possible to rotate the side flanges inwards to minimise bulkhead footprint Mounting holes dia 6 mm suggested bolt dia 5 mm spaced 158 x 52 mm w x h centered and aligned with front panel Mechanical mounting data for bare board versions 9027C and 9033C are available on request 3 2 Inputs 3 2 1 Synchro Stepper inputs S1 S2 S3 R1 R2 Phase voltages 90 V nominal Minimum nominal voltage in 90 V setting 22 V SW 0 4 1 and later Phase load Appr 47 kQ symmetrical load to internal AGND floating Note Open collector or similar stepper outputs requires external voltage and load Internal jumper P13 can be used to connect internal AGND to input terminal R1 Reference voltage 10 to 120 V RMS AC Reference frequency Settings for 50 60 Hz 400 500 Hz or 20 1000 Hz Gear ratio Synchro 1 1 Synchro Stepper 1 36 1 45 1 90 1 180 and 1 360 values settable using serial terminalt proprietary NMEA set up control or using internal key display 3 2 2 NMEA 0183 IEC 61162 1 set up alignment input Input circuit Fully NMEA 0183 IEC 61162 1 compliant optically isolated Connections Spring loaded terminal block accepting up to 2 5 mm cable ends marked
11. DC less than 2 W power consumption Note Operates typically down to less than 10 V but this is not guaranteed Operation on 4 5 9 V DC or 9 18 V DC or AC on request Isolation Internal circuitry is powered using an internal isolated DC DC converter main NMEA output driver is powered by 5 V DC down regulated from DC input Pads on mounting screw holes or internal ground plane are not connected to DC intake 3 7 Environmental Type approvals Requirements Compliant with environmental requirements as defined by IEC 60945 Gyro conversion performance is in compliance with IMO performance standards for gyro compasses Type approvals BSH 6161 001 2004 see section 10 for certificate CE marked according to EMC directive see sec 9 for declaration of conformity Test reports are available on request 3 8 Disclaimer All data in this specification are preliminary and may change without prior notice This unit may as any other electronic device malfunction due to internal hardware or software failure or due to input signal configuration set up or compatibility problems If the output from the unit is connected to other systems these should be operated in such a way that such alfunction can be detected and corrected avoiding damage or danger Qwerty elektronik will not in any case assume any responsibility for any direct or indirect malfunction for the reasons mentioned other than replacing units under explicitly agreed guarantee conditions
12. Example Setting unit to Stepper mode with 5 Hz update of HEHDT ROT conversion to TIROT on Press Set display shows text Press Dim and Dim keys until ALiGn is shown Press Set display shows 1 Press Dim and Dim keys until 2 is shown Press Set display shows 2 1 Press Set display shows SynCr Press Dim and Dim keys until StEP is shown Press Set to enter this display shows 2 1 Press Exit display shows 2 Press Dim and Dim keys until 3 is shown Press Set display shows 3 1 Press Dim and Dim keys until 3 3 is shown Press Set display shows oFF Press Dim and Dim keys until tl 1s shown Press Set to enter this display shows 3 3 Press Dim and Dim keys until 3 4 is shown Press Set display shows 1 Press Dim and Dim keys until 5 is shown Press Set to enter this display shows 3 4 Press Exit display shows 3 Press Exit to revert to normal operation All set up data is stored in internal non volatile EEPROM when leaving set up menu system and returning to normal operation and this write operation may take a couple of seconds to complete 4 2 3 Test mode This mode is useful for trouble shooting during install
13. Illegal parameter value PQWEI 5 Error detection and signalling The unit is as far as is practicable designed to detect input signal conditions that indicates that input data is not valid The behaviour s different depending on chosen mode The following error types are handled NMEA messages thrown away due to high serial load Synchro stepper input values are incorrect Synchro reference input is incorrect Synchro stepper is not aligned Run time limit Internal queue full E2 file system error No application UDA MN BWN KR Errors are signalled in three different ways e The display shows Err X where X is the error code e The on board LEDs 0 1 and 2 LSB MSB shows the error code and binary fashion where LED 3 lit e The NMEA output inserts a PQWEX message defined as PQWEX ticks severity errCode moduleld line errText where the errCode is the error code defined above and where the final errText 1s a verbal description of the error 5 1 Error 0 NMEA ouput overflow This can happen 1f the baud rate chosen doesn t fit with the chosen output frequency 5 2 Error 1 Synchro Stepper values are incorrect In both synchro and stepper modes the three input signals S1 S2 and S3 have to fulfil some logic criteria as defined in section Gyro output formats This means for instance that in stepper mode at least one signal must have low polarity and one signal must have high polarity In sync
14. Oe Doc No 9102L2 doc page 20 Technical Description Installation manual Synchro Stepper NMEA converter S2N U N 9028C SW 99002 ver 0 6 1 and later Safety precaution Although the unit is powered from nominal 24 V DC the voltages for some gyro synchro and or stepper formats may be higher than 48 V and care must be taken since these voltages may be dangerous Installation shall only be done by qualified persons There is no galvanic connection between input terminals R1 R2 and S1 S2 S3 and unit case or any other connections of the unit Note This Technical Description is used also for version bare board versions 9027C and 9033C without displays as well as for earlier SW versions certain sections below are not applicable for this 1 Brief Description The serial point to point communication method described in NMEA 0183 and its international companion standards IEC 61162 1 and 2 will be in use for long times to come A consequence of that is that there is a strong need for efficient ways to transfer data from other electrical interfaces such as the widely used synchro transformer format to complex systems like integrated bridge systems VDR and AIS The Synchro NMEA converter unit described here is intended to fulfil this requirement by using efficient circuitry to solve the required task only The default setting converts from standard synchro format any common voltage including 115 90 and 26 11 5 V 50 500 H
15. Settings Anders Jango Mina dok A Download Close Choose the com port used for the serial connection Click on Connect which will display information about the unit Power up S2N it will search for communication from wqld during 30 seconds during which the upper LED will flash If the board info fields shown above does not show up within few seconds perform another off on sequence on S2N Use Browse to locate the file containing the software to be downloaded Click Download to perform the operation and Close to exit the utility Do not forget to remove jumper JP6 on S2N to return to normal operation directly on power up Oe Doc No 9102L2 doc page 19 20 9 CE Declaration of conformity Fee No 9080B doc Declaration of Conformity according to the EMC Directive 89 336 EEC and amendments and Low Voltage Directive 73 23 EEC S2N Gyro converter Manufacturer qwerty elektronik B linge Klockargard SE 610 60 Tystberga Sweden tel 46 70 680 0115 fax 46 70 239 17 62 E mail info qe se www ge se Equipment S2N Gyro converter boxed version U N 9028C The above equipment has been tested and when connected to Synchro or Stepper output of a ship s gyro to produce signals compliant with IEC 61162 1 and IEC 61162 2 is CERTIFIED as complying with the EMC requirements and protection against accidental access to dangerous voltages as defined by IEC 60945 2002 The EMC t
16. ation page 10 20 Doc No 9102L2 doc Ce Pressing Set will enter submenus which can be used to check input voltages etc Description of Test menu sub menu system Test se Exit Ref gt Ad 1 gt Ad 2 Ad 3 etc Ref Pressing Set n th s submenu will display the frequency of the synchro reference voltage as connected to RI R2 in Hz Exit returns to Ref submenu Ad 1 Ad 2 Ad 2 9 9 Pressing Set in these submenus will display the value read on the three A D converter inputs expressed in percent of full range Note that each A D input is referenced to a common floating ground which 1s not connected to any point outside the unit Exit returns to Ad X submenu S1 53 53 52 S2 S1 Pressing Set in these submenus will display the difference between the corresponding input channels as seen via the A D Exit returns to SX SX submenu Step Pressing Set in this submenu will display X X X where the three characters represents the polarity of the three inputs S1 S2 S3 expressed as L or H Exit returns to Step submenu 4 2 4 Play mode This mode is useful for testing installations and performs and executes a pre programmed sequence of turns Note Dynamic playback only works if the unit is set to Synchro 1 1 mode Pressing Set will display no and by changing this
17. e is if the gyro has a 1 1 synchro output since this format will avoid any alignment procedures while still maintaining the full 0 1 resolution Note Connection to 1 1 synchro output requires all five connections to be correct e Shifting any two wires S1 S2 S3 changes direction of turning e Permutating one step S1 gt S2 S2 gt S3 and S3 gt S1 changes reading 120 e Shifting RI and R2 changes reading 180 If this is not the case or f gyro documentation is not available the signals from the gyro would have to be used regardless of the format To find out if the signals available are of the synchro or the stepper format proceed as follows If the connections consists of five wires and two of these carries a constant not affected by the ship turning 115 V 26 V AC voltage at 400 or 50 60 Hz this means that the signal is of the synchro type and the signal pair thus localised is the reference signal which should be connected to the RI R2 inputs Don t be too worried about polarity wrong connection will only give a 180 error that could be compensated for later Connect the other three signals to S1 S2 S3 again observing that getting the signals wrong would cause an angular displacement and or the wrong direction of turning If this constant AC voltage pair is not found the connection is of the stepper type and the task in this case 1s to locate the three wires that will carry a turning dependant voltage see diagram above
18. est report has been issued by SP Boras Sweden with designation F319782D dated 2003 12 10 The prototype equipment used for certification was fully representative of the production standard qwerty elektronik Phone 46 70 680 0115 Fax 46 70 239 17 62 B linge klockargard SE 610 60 Tystberga Sweden E mail info ge se WWW de se page 20 20 Doc No 9102L2 doc C gt 10 BSH type approval Bundesrepublik Deutschland Federal Republic of Germany Bundesamt f r Seeschifffahrt und Hydrographie an Federal Maritime and Hydrographie Agency vis WE HYOROGRAPHIE Baumusterpr fbescheinigung vos exam nallor certificale no Nr BSH 6161 001 2004 Die Navigationsausr stung The Navigation equipment Schnittstellenwandler f r Gyro Kompasse Gyre converter mit der Typbezeichnung with he type designation S2N Gyro converter des Herstellers qwerty elektronik of me manufacturer B linge Klockarg rd SE 610 60 Tystberga Sweden ist nach den folgenden Normen Standards gepr ft worden has been Iype fesied in accordance with the following standards Norm Standard Pr fnorm Test standard General Requirements IMO A 694 IEC 60945 2002 IEC61162 1 2 ert llt die Anforderungen hinsichtlich Genauigkeit der Datenwandlung Fehlerbehandlung ung verarbeiteten Drehrate zum Anschluss an Navigaltionssysteme und wird f r den Antragsteller complies with fhe requremenis of connected navigatonal systems 1 8
19. he unit to AC synchro mode but it will not check reference frequency Frequencies lower than some 20 Hz will not give stable output angles and usage of frequencies lower than 50 Hz is not recommended Entering 3 will set the unit into 50 60 Hz synchro mode and it will monitor the reference frequency to be within the range 40 70 Hz Entering 4 will set the unit into 400 500 Hz synchro mode and it will monitor the reference frequency to be within the range 300 600 Hz 4 3 4 Sub menu 4 Stepper parameters Entering 4 will output the following sub menu Stepper menu Ua ExIe 1 Change from Synchro to Stepper 2 Set stepper gear ratio Entering 1 will disable stepper input mode and exit to synchro input mode Entering 2 will display a sub menu setting the stepper resolution Set stepper gear ratio 360X ip cake 360X steps deg IR 45X 5 steps deg 75 steps deg 6 180X 3 steps deg 1 O page 14 20 Doc No 9102L2 doc Ce 4 3 5 Sub menu 5 System information Entering 5 will output the following sub menu System menu ip alas Show memory usage Show version Show e2prom file system Unlock run time limit Time left 720 00h Sub menus 1 2 and 3 are not intended for customer use Units for demonstration evaluation are shipped with a run time limitation set to 720 hours after which elapsed time operation will discontinue By entering a code in this
20. hro mode the sum of the differences of the three different signal pairs must maintain a certain level and these signals have to be at the same or opposite phase as the reference input Generally disconnection of at least one of the input signals will cause this error Detection will vary due to at which angle it occurred 5 3 Error 2 Synchro reference input is incorrect This can occur in synchro mode only depending on the synchro frequency setting e In 20 1000 Hz mode frequencies outside this range appr are not accepted e In 50 60 Hz mode frequencies outside 10 70 Hz appr are not accepted e In 400 600 Hz mode frequencies outside 300 700 Hz appr are not accepted e Inall AC synchro settings it is required that the reference voltage is larger than appr 2 V RMS 5 4 Error 3 Synchro stepper is not aligned This error condition will be triggered in all geared modes except synchro 1 1 if the unit Oe Doc No 9102L2 doc page 17 20 a is powered up b detects an input signal inconsistency as described above In this error condition signalling as described above occurs and a heading output is removed b Display will start to blink with an A as the first character This condition can only be reset by performing an alignment procedure 5 5 Error 4 Run time limit This can only occur on demo units delivered with a 720 hour run time limitation and can be cleared by entering an individual code Please c
21. ituation see set up section for this Rate of turn ROT rate of turn can be extracted from heading information see set up section page 4 20 Doc No 9102L2 doc C I Other formats Special functions such as angle to speed or conversion form angular value to any other required serial format can be done on request Set up As a part of set up procedure proprietary PQWE messages are being transmitted see set up section 3 4 Performance 3 4 1 Synchro operation Inaccuracy Better than 0 1 jitter 0 02 0 05 using 1 1 synchro input and operating at phase voltages down to 50 of nominal voltage Resulting resolution in 360 1 system down to 0 00003 Update rate 1 Hz default 2 5 10 20 30 or 40 Hz as required 3 4 2 Stepper operation Inaccuracy As defined by stepper format Update rate 1 Hz default 2 5 10 20 30 or 40 Hz as required Tracking rate At least 120 steps second for DC step 20 V and above Restricted tracking rate for DC step down to TTL level and for rectified AC operation 3 5 Keys indicators jumpers Keys Set Exit Dim and Dim keys for alignment setup and display dimming all with backlit text Pressing Dim and Dim keys simultaneously tests all LED elements LED indicators Five seven segment LED indicators for display of heading Jumpers Four jumpers P6 P7 P8 and P13 are available 3 6 Power supply Power requirement 18 36 V
22. ngs under sections 2 3 4 and 5 above according to the table below Default Synchro 1 Synchro 2 Synchro 4 2 1 syne step 3 1 Baud rate No change 4800 4800 4800 4800 4800 3 2 Power on No change On i m message a a u u rate 3 5 Heading No change HDT sentence 7 Transmit No change mil checksum 4 1 Input range 22 90 V 22 goav V 360x 90x 90K 4 3 Reference No change N A 50 60 Hz 50 60 Hz 50 60 Hz 50 60 Hz frequency If a certain pre set is chosen it is still possible to change any of the settings using the menu system described above The last setting made always has priority List of common gyro types for the presets above always consult gyro documentation 1f possible ge cannot guarantee accuracy of data in this list Default Stepper 180 1 Furuno GY 700 Oe Doc No 9102L2 doc page 9 20 Tokimec MK 14 MOD 1 2 T NK EN NK El SR 130 140 TG 100 5000 PR 357 130 140 ES 17 GLT 201 202 TG 8000 SR 120 ES 16 MK 20 Amabrown MK 10 MKL 1 series 1351 MOD 4 Robertson SKR 80 Synchro 1 Synchro 360 1 22V 50 60 Hz Ansch tz STD 2 amp 3 Yokogawa Nantec C 1 1A 2 3 A 55 B55 Synchro 2 Synchro 360 1 90V 30 60 Hz Anschutz STD 4 amp 5 Yokogawa Nantec CMZ 100 200 C JR D 1Z 1 3 IPS 2 3 Plath Navigat II III Synchro 3 Synchro 90 1 22V 50 60 Hz Tokimec ES 11A TG 200 PR222R PR237L H GM21 Synchro 4 Synchro 90 1 90V 50 60 Hz Tokimec GM 11 Kawasaki GX 81
23. ontact qwerty elektronik for instructions 5 6 Errors 5 6 and 7 internal failure These should not occur on a normal functional unit Please contact qwerty elektronik for instructions 6 Operation and alignment On power up the unit will only start operating in synchro 1 1 mode without performing an alignment operation This is also the case after a black out or f unvalid input signals are encountered If alignment is lost the unit will automatically go into alignment mode with a flashing A preceding the displayed heading value 6 1 Alignment via NMEA port By entering a valid HEHDTxxx x T hh lt CR gt lt LF gt message on the NMEA input the unit will adjust itself to that heading and start operating Note This alignment input message will be accepted by the unit also without checksum 6 2 Alignment via internal pushbuttons Unit will flash A preceding heading value in conditions where alignment is lost signalling that it is in alignment mode Use keys Dim and Dim to adjust the displayed heading until it corresponds with the actual heading as indicated by the ship s gyro Press Set to enter this value and return to normal operation T NMEA messages used 7 1 HDT HDT 1s the common true heading format for current NMEA and IEC 61162 1 versions SHEHDT x x T hh lt CR gt lt LF gt 7 2 THD THD is the proposed new format for heading sensors It s currently not decided by NMEA standa
24. rds committee or IEC TC80 WG6 and message identifier is likely to change use of this should be avoided 1 3 HDG HDG is the common heading format from a magnetic compass SHEHDEG X X XxX Ed RX art hh lt eR gt lt IEE gt ie 72 3 4 gt 6 7 8 Fields 4 5 6 and 7 are always blank from S2N typical message will look like SHEHDGy xy xs 2 FT Rh lt ER LE gt page 18 20 Doc No 9102L2 doc Oe 7 4 ROT ROT is the standard format for Rate Of Turn indication SHEROT x x a hh lt CR gt lt LF gt 173 Proprietary messages The registered manufacturer s code for Qwerty Electronics is QWE meaning that these messages looks like SPQWE hh lt CR gt lt LF gt 8 Software upgrade via serial port connection Software upgrade can be performed using a PC with a serial port connected as described in section Connecting to PC Terminal Make sure that the Windows compliant software download utility wqld exe as well as the new S2N software 99002 qld to be installed are available in s suitable location on this PC Connect jumper JP6 on S2N board Double click on waqld utility which will display the following window wald OE Universal Downloader Ver 0 1 3 38400baud ER Board info Q Product 9027C0 Serialno 10174 Boot Sw 99001 0 2 0 Date 2004 feb 09 Cyverty Elektronik Sweden Appl sw S002 0 6 0 KIA Qe Se com Connect Download fle C Documents and
25. t ParameterValue ParameterT ext Response codes 0 Ok l Not in setup mode 2 Read only parameter 3 Illegal parameter group 4 Illegal parameter number 5 Illegal parameter value ParameterGroup 1 Product data Read only 1 1 Product amp rev e g 9027C0 1 2 Production date 1 3 Serial number 1 4 Boot amp boot version 1 5 Application amp application version 1 6 Application download date 1 7 Runtime limit if active 2 Main mode synchro stepper 2 1 Main mode O synchro 1 stepper 2 2 Log level O none 1 debug 2 info 3 disturbance 4 recoverable 3 NMEA 3 1 Baudrate 0 1200 1 2400 2 4800 3 9600 4 19200 5 38400 6 57600 3 2 Power on message 0 off 1 on 3 3 ROT message 0 off 1 on 3 4 Heading update rate 0 1 1 2 2 5 3 10 4 20 5 30 6 40 times sec 3 5 Heading sentence O HDT 1 HDG 2 THD 3 6 Talker id O HE 1 U 3 7 Transmit checksum 0 off 1 on 4 Synchro 4 1 Input range O 11V 1 90V 4 2 Gear ratio 0 360x 1 180x 2 90x 3 45x 4 36x 5 1x 4 3 Reference frequency 0 DC 1 AC 20 1000Hz 2 50 60Hz 3 400 600Hz 5 Stepper 5 1 Gear ratio 0 360x 1 180x 2 90x 3 45x 4 36x Examples Host S2N ae HEHDT cree HEROT eis HEHDT Bik HEROT gt PQWEI 1 get parameter for NMEA baud rate gt PQWE2 3 1 oe PQWE3 0 OK 2 4800baud page 16 20 Doc No 9102L2 doc Ce set synchro gear ratio i PQWE 4 2 1 nn PQWE3 0 OK 1 180x set invalid data Bu PQWE2 3 1 99 de PQWE3 5
26. the same reference signal and the ratio and polarity referred to the reference signal between them defines unambiguously the angular value of the rotor meaning that for a 1 1 gyro where the rotor is connected directly to the gyro sensor the angular value directly represents the heading shown by the gyro Geared systems where the synchro rotates a certain number of revolutions for a full 360 turn of the ship provides higher resolution but the unambiguity of the 1 1 system 1s lost meaning that the interface unit needs to know the heading initially much in the same way as it would be possible to keep track of the time by only observing the minute hand of the clock face if You are only told initially what the hour is page 6 20 Doc No 9102L2 doc C I 4 1 2 Stepper Diagram of stepper output signals Sl S2 0 60 120 180 240 300 360 The similarity of the synchro format should be noted although the three phase signals can only assume one of two different states on and off meaning that each revolution is only subdivided into six sectors each 60 This means that to be of any use defining the heading from a gyro compass stepper systems are always geared the most common system being the six steps per degree format where each degree 1s subdivided into six sectors 4 1 3 Identifying signals to connect to interface unit Technical documentation of the gyro may give useful information The best choice for connection to interfac
27. voured by the fact that polarity designations A and B of commonly used RS485 driver circuits is reversed compared to NMEA usage Using wrong polarity will cause display of unreadable characters try other polarity to resolve Terminal settings Baud rate 4 800 Data bits 8 Stop bits l Start bits l Parity Off Flow control Off No To start the set up mode in S2N install jumper P7 and power up the unit S2N will identify itself by Products J02 7CO So rLROU LO 2003 sep 24 Boor 2900k 90 2 gt 1r 7 APPIIeAaLr 10n3 99002 VYOr p 2ZOUS aug 5128522080 CRC 3738 1 Main menu System info Measurement amp calibration 0 Exit to normal operation and store changes 1 Revert to last saved parameters 2 NMEA 52 DOVYMCHFO 4 Stepper ar om All set up functions are performed via this simple menu system For each menu the desired function or sub menu is chosen by entering the line number of that function while entering a 0 will always exit the submenu menu A time out will always exit to normal operation if no input is received within 30 seconds regardless of the setting of jumper JP7 4 3 2 Sub menu 2 NMEA parameters Entering 2 will output the following sub menu NMEA menu EXLE ROT disable Set NMEA update frequency 1 s Set NMEA baudrate 4800 bps Set NMEA talker id HE Set NMEA header sentence HDT POWEO at reset disable Log level INFO NS OF WNE
28. z to HEHDT transmitted each second or from stepper Conversion from more unusual formats with different geared ratios can be done using the NMEA input for set up calibration and alignment qwerty elektronik Phone 46 70 680 0115 Fax 46 70 239 17 62 B linge klockarg rd SE 610 60 Tystberga Sweden E mail info qe se wwWw ge se page 2 20 Doc No 9102L2 doc C gt 2 Block diagram RI Input signal A D CPU Isolation R2 conditioning Flash RAM gt d UART SI LED display S2 Pushbuttons gt S3 p Isolated power 18 36 V DC 4 2 p NMEA input supply input opto coupled The power supply for the internal circuitry is isolated from the ship s power supply input and the NMEA input for set up alignment where needed is opto isolated The main NMEA output based on a RS485 driver circuit is fully compliant with the IEC 61162 2 specification and powered from the power intake supply isolated from the internal supply which shall be connected only to fully isolated NMEA IEC compliant inputs resulting in full isolation of input and output signals Even in the event of an erroneous grounding of the main NMEA output for instance to a non isolated serial input there is still no electric connection to the input circuitry and the internal electronics 3 Technical data 3 1 Mechanical Oe Doc No 9102L2 doc page 3 20 Dimensions Box without mounting flanges and cable glands 14
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