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A5023/24

 

 

 

2 of 19 

Table of Contents 

 

1   Introduction and description of fluxgate compass. 

  1.1   Description of compass 

  1.2   Connections 

          1.2.1 A5024 
          1.2.1 A5023 

 

     

 1.2.3 Variants with suffix -CP 

 

  1.3   Switches 

  1.4   

Indicator light 

  1.5   Power supply. 

  1.6   

Mounting 

2  Connecting the compass to your application. 

 

  2.1   To a NMEA-0183 instrument. 

2.2   To a PC serial port. 

3  Output formats available from compass. 

 

  3.1   NMEA-0183 

  3.2   

Furuno AD-10 

4  Calibrating the compass. 

 

  4.1   

Why the compass needs calibrating. 

  4.2   Starting calibration. 

  4.3   Aborting a bad calibration. 

  4.4   Setting reference NORTH heading 

      4.5      Set-up suggestions 

 

5

 

NMEA-0183 Inputs and Outputs 

 

6  References 

 

Содержание A5023

Страница 1: ...24 1 of 19 A5023 A5024 FLUXGATE COMPASS USER AND INSTALLATION MANUAL Software releases V016 Hardware versions 7310 4 Autonnic Research Ltd UK www autonnic com A5023 A5024 manual 03 docx Jan 2019 19 De...

Страница 2: ...Power supply 1 6 Mounting 2 Connecting the compass to your application 2 1 To a NMEA 0183 instrument 2 2 To a PC serial port 3 Output formats available from compass 3 1 NMEA 0183 3 2 Furuno AD 10 4 C...

Страница 3: ...re surrounded by high precision interface circuits which together with the special clockwise anticlockwise and offset nulling sequence allow a microprocessor to acquire a binary value from two orthogo...

Страница 4: ...ck P GND 6 Blue O Furuno AD 10 Clock 7 Violet O Furuno AD 10 Data 8 Green P GND Screen Not connected NOTE 1 Conductors 5 and 8 are connected together inside the A5024 NOTE 2 Wiring does not use the sa...

Страница 5: ...1 Red P Supply 2 Yellow I NMEA IN 3 Blue P GND and NMEA IN 4 Green O NMEA OUT NOTE Cable foil and drain wire internally NOT connected to GND 1 3 Switch Inputs S1 S2 Fig 1 Except for variants with suff...

Страница 6: ...e installation is headed North 3 Both together Pressing both together for at least one second causes the auto calibration process to halt and restores the previously saved calibration values 1 4 Indic...

Страница 7: ...possible scenarios here and it remains up to the user to determine the suitability of a possible location for the compass Note that the output takes several seconds to stabilize after a power is appli...

Страница 8: ...is based on is a balanced serial protocol called RS422 This means that two wires are need for send and two for receive Fig 2 Note that the GND wire is used for the current return path This might be s...

Страница 9: ...from 000 0 to 359 9 degrees Also the Rate of turn data is sent either with or without the heading sentence For a complete list of output formats available see Section 5 11 3 2 Furuno AD 10 A5024 only...

Страница 10: ...irst method The process consists of rotating the whole installation in the Earth s field so that both permanent magnets and induced magnets are corrected The method used is the single turn at a consta...

Страница 11: ...hat these remain unchanged after calibration If any significant iron component is altered such as the installation of new equipment or replacement of equipment such as winches or engines then the cali...

Страница 12: ...rth This is best done by identifying transits on a chart and heading the boat on the transit Again this should be done in the same conditions so that the heading can be lined up on the transit and mai...

Страница 13: ...CFG Configure NMEA sentence output format 5 2 5 DHD Set heading damping value 5 2 6 DLED Disable LED s 5 2 7 DLY Set power up delay 5 2 8 ELED Enable LED s 5 2 9 IAC Initialise autocalibration 5 2 10...

Страница 14: ...3 PATC IIHDG CEC CR LF Read calibration code The response is a proprietary sentence containing a code k for the status PATC HCHDG CEC k CR LF Where k has the following values k 0 the last auto calibr...

Страница 15: ...HCHCC hhh h CR LF a 4 HEHDT hhh h CR LF a 5 no heading data sent hhh h is the compass heading in degrees this compass heading field will be omitted when auto calibration is in process and b is sentenc...

Страница 16: ...transmitted sentence is HEROT zxxx x A cc CR LF note the E and where z sign as follows or missing turning to starboard i e heading value is increasing turning to port i e heading value is decreasing a...

Страница 17: ...7 PATC IIHDG DLYn n CR LF Startup Delay Sets a delay from Power up to the transmission of the first output sentence where n n is in seconds with a maximum of 6 5 5 2 8 PATC IIHDG ELED CR LF Enable LE...

Страница 18: ...IIHDG RHD nn CR LF Internal filter response Where nn is the damping value within the range 0 to 99 5 2 12 PATC IIHDG RHO CR LF PATC IIHDG RHO nnn n CR LF Where nnn n is the heading offset Note that le...

Страница 19: ...updater software which runs under Microsoft Windows It is used to send aeh files to install a new version of firmware 5 2 17 PATC IIHDG XCL CR LF Abort Auto Calibration Refer to section 1 3 6 Referen...

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