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Maretron SSC300 User Manual

Solid state rate/gyro compass
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SSC300
Solid State Rate/Gyro Compass
User's Manual
Revision 1.0
Copyright © 2015 Maretron, LLP All Rights Reserved
Maretron, LLP
rd
9014 N. 23
Ave #10
Phoenix, AZ 85021-7850
http://www.maretron.com
Maretron Manual Part #: M003069
Revision 1.0
Page i

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Summary of Contents for Maretron SSC300

  • Page 1 SSC300 Solid State Rate/Gyro Compass User’s Manual Revision 1.0 Copyright © 2015 Maretron, LLP All Rights Reserved Maretron, LLP 9014 N. 23 Ave #10 Phoenix, AZ 85021-7850 http://www.maretron.com Maretron Manual Part #: M003069 Revision 1.0 Page i...
  • Page 2 SSC300 User’s Manual Revision History Revision Description Original document. Page ii Revision 1.0...

  • Page 3: Table Of Contents

    4.4.2 Variation Source Selection via NMEA 0183 Interface....... 16 Rate of Turn ........................16 5.1 Rate of Turn Damping Period Selection with Maretron Display ....... 16 5.2 Rate of Turn Damping Period Selection by NMEA 0183 Interface ......16 5.3 Rate of Turn Zeroing ....................16 Maintenance ........................
  • Page 4 Appendix C – Connecting to a PC Via NMEA 0183 ..............C1 Appendix D – Configuring the SSC300 to Transmit True Heading Data ......... D1 Appendix E – Configuring the SSC300 to Transmit the HDT Sentence for …and Radars ..E1 Page iv...

  • Page 5: General

    1.1 Introduction Congratulations on your purchase of the Maretron SSC300 Solid State Rate/Gyro Compass. Maretron has designed and built your compass to the highest standards for years of reliable, dependable, and accurate service. Maretron’s SSC300, implementing the second generation of Maretron's award-winning solid state compass technology, is a solid state, rate gyro electronic compass that provides better than 0.7°...

  • Page 6: Ssc300 Accessories

    SSC200/SSC300 Compass NMEA 0183 10 meter connection cable 1.5 Quick Install Installing the Maretron SSC300 compass involves the following six steps. Please refer to the individual sections for additional details. 1. Unpack the Box (Section 2.1) 2. Choose a Mounting Location (Section 2.2) 3.

  • Page 7: Mounting The Ssc300

    1. Level with the Earth’s Horizontal Plane – Although the SSC300 can be calibrated in the vessel to compensate for pitch and roll installation-offset, it is best to mount the compass as level as possible to maximize its pitch and roll operational range.

  • Page 8: Mounting The Ssc300 To A Vertical Surface

    Loctite Red (271), as they will cause stress cracking of the plastic enclosure. The usual way of mounting the SSC300 to a horizontal surface is to mount it to the top of the horizontal surface; however, the SSC300 may be mounted upside down to the underside of a horizontal surface, provided that the SSC300 is programmed to recognize that it is mounted upside down.

  • Page 9: Figure 2 - Mounting The Ssc300 To Vertical Surface

    SSC300 may be mounted to the astern side of a vertical surface, so that the side of the compass with the connectors is facing the stern of the boat, provided that the SSC300 is programmed to recognize that it is mounted in this way (“backwards”).

  • Page 10: Connecting The Ssc300

    Figure 5 below.. Be sure the cable is connected securely and that the collar on the cable ® connector is tightened firmly. Connect the other end of the cable (male) to the NMEA 2000 network in the same manner. The SSC300 is designed such that you can plug or unplug it from ® an NMEA 2000 network while the power to the network is connected or disconnected.

  • Page 11: Figure 4 - Nmea 2000 /Power Connector Face Views

    Figure 4 – NMEA 2000 ® /Power Connector Face Views Figure 5 – SSC300 with NMEA 2000 ® Connection Only Revision 1.0 Page 7...

  • Page 12: Connecting To Nmea 0183 Interface

    MARE-004-1M-7 Maretron 10 meter cable by connecting the female end of the cable to the SSC300 (note the key on the male connector and keyway on the female connector). Be sure the cable is connected securely and that the collar on the cable connector is tightened firmly.

  • Page 13: Figure 8 - Ssc300 With Nmea 0183 Connection Only

    The SSC300 compass supports NMEA0183 communication at both 4800 baud and 38400 baud. All SSC300 Compasses are shipped with a baud rate of 4800 baud. The baud rate may be set to 38400 baud by connecting to the compass using a terminal emulator (See Appendix...

  • Page 14: Connecting Both Nmea 2000 And Nmea 0183 Interfaces

    Section 3 entitled “Calibration”. 3 Calibration In order to provide accurate heading indication, the SSC300 must be calibrated in the vessel after installation. The three calibration procedures that must be carried out are rate of turn zero offset calibration (Section 3.1), magnetic deviation calibration (Section 3.2) and installation-offset...

  • Page 15: Maretron Display Product Offset Correction

    Manual installation-offset correction is performed by physically aligning the compass with the vessel. The procedure is as follows: 1. With the vessel laying flat in the water, adjust the roll angle of the SSC300 by adding small washers or spacers between the mounting bracket holes and mounting surface until the display reads zero for the roll angle (skip this step if you are not interested in viewing the vessel’s roll angle).

  • Page 16: Maretron Display Initiated Deviation Calibration

    SSC300 stores the deviation values in permanent memory for subsequent compensation. Under certain conditions (e.g., turning to fast or to slow), the SSC300 will not successfully complete the calibration process and the SSC300 will not store the deviation values in its permanent memory.

  • Page 17: Automatic Power-Up Deviation Calibration

    (“magnetic”). The SSC300 is a magnetic compass; therefore, it requires an external source for variation if you want to view your heading in “true” format. The SSC300 is capable of receiving variation in one ® of three ways; 1) via the NMEA 0183 interface, 2) via the NMEA 2000 interface, or 3) through manual variation entry.

  • Page 18: Variation Input Via Nmea 0183 Interface

    SSC300 to use variation from only the ® NMEA 0183 interface or you can force the SSC300 to use variation from only the NMEA 2000 interface or you can force SSC300 to only use manually entered variation.

  • Page 19: Variation Input Via Manual Entry

    2. Variation from Only NMEA 2000 Interface 3. Variation from Only Manual Entry The SSC300 can be programmed to accept a specific source for the variation data using one of two possible procedures. 1. Using a Maretron Display (Section 4.4.1) 2.

  • Page 20: Variation Source Selection Via Maretron Display

    5.3 Rate of Turn Zeroing The SSC300 may be used as a rate of turn indicator, which should read zero when the vessel is not turning. It is possible that the rate of turn indication has an offset; that is, it may show a non-zero value when the vessel is at rest.

  • Page 21: Maintenance

    6 Maintenance Regular maintenance is important to ensure continued proper operation of the Maretron SSC300. Perform the following tasks periodically:  Clean the unit with a soft cloth. Do not use chemical cleaners as they may remove markings or may corrode the compass enclosure or seals. Do not use any cleaners containing acetone, as they will deteriorate the plastic enclosure.

  • Page 22: Troubleshooting

    Opening the SSC300 will expose the sensitive electronic components to movement and adverse environmental conditions that may render the compass inoperative. Please do not open the SSC300, as this will automatically void the warranty. If service is required, please return the unit to an authorized Maretron service location.

  • Page 23: Technical Specifications

    Heading Update Rate 10 per Second Adjustable up to 40 per Second Heading Deviation Automatic Alignment Calibration In Boat Calibration with Maretron Displays Pitch and Roll Range ±80° With Maretron Display Pitch and Roll Accuracy ±1° ±45° Pitch and Roll - 15°C to 35°C Pitch and Roll Display Resolution 0.1°...
  • Page 24 Heading, Deviation, and Variation 10 Times/Second Sentences Heading, Magnetic Heading, True Rate of Turn 5 Times/Second PMAROUT Maretron Proprietary Attitude (Pitch and Roll) 1 Time/Second Text Transmission Received Recommended Minimum Specific GNSS Data Sentences Course Over Ground and Ground Speed...

  • Page 25: Technical Support

    9 Technical Support If you require technical support for Maretron products, you can reach us in one of the following ways: Telephone: 1-866-550-9100 Fax: 1-602-861-1777 E-mail: support@maretron.com World Wide Web: http://www.maretron.com Mail: Maretron, LLP Attn: Technical Support 9014 N. 23...

  • Page 26: Installation Template

    SSC300 User’s Manual 10 Installation Template Please check the dimensions before using the following diagrams as templates for drilling the mounting holes because the printing process may have distorted the dimensions. 3.87” 1.42” Figure 10 – Horizontal Mounting Surface Template 2.75”...

  • Page 27: Maretron (2 Year) Limited Warranty

    11 Maretron (2 Year) Limited Warranty Maretron warrants the SSC300 to be free from defects in materials and workmanship for two (2) years from the date of original purchase. If within the applicable period any such products shall be proved to Maretron’s satisfaction to fail to meet the above limited warranty, such products shall be repaired or replaced at Maretron’s option.
  • Page 28 SSC300 User’s Manual This page intentionally left blank Page 24 Revision 1.0...

  • Page 29: Appendix A - Nmea 0183 Interfacing

    The SSC300 indicates heading 10 times a second. The deviation field always contains zero as the SSC300 reports it’s heading with the deviation included. The variation field will normally contain the null character, however if the SSC300 receives either a valid RMC or VTG sentence, then the SSC300 will fill the variation field appropriately.
  • Page 30 Deviation Calibration During calibration, the vessel must not turn to fast where the SSC300 is Turning Too Fast unable to reliably develop deviation data. If the SSC300 senses the vessel turning to quickly, it will issue this message and restart deviation calibration as long as it has not failed five times.
  • Page 31 Note on NMEA 0183 Checksums For ease of manual configuration of the SSC300 via the NMEA 0183 Interface, NMEA 0183 checksums are optional. If no checksum is present in a received sentence, then the sentence is treated as if a valid checksum were present.
  • Page 32 (i.e., NMEA 2000 interface and manual entries). $PMAREXE,SSC300,,5D,3,,,<CR><LF> This command causes the SSC300 to be set back to the factory default where variation data is used from ® either the NMEA 0183 interface or the NMEA 2000 interface.
  • Page 33 PMARSETPX sentence offers finer resolution and should be used if available. The SSC300 can be programmed to enable or disable the periodic transmission of the HDG, HDM, HDT, ROT, and PMAROUT sentences. In addition, the periodic transmission rate for these sentences and the Variation Lifetime (see RMC and VTG) can be programmed using this sentence.
  • Page 34 Where “known heading in tenths of degrees” is expressed in 10 of degrees (i.e., 121.7° would be programmed as 1217) Sending this Maretron proprietary NMEA 0183 sentence to the SSC300 causes the heading, roll, and pitch offsets to be written to permanent memory. Appendix A – NMEA 0183 Interfacing Page A6 Revision 1.0...

  • Page 35: Appendix B - Nmea 2000 Interfacing

    3: Deviation – The deviation is included in field 2, therefore this field always reads as 0. 4: Variation – The SSC300 does not use this field so the field is transmitted with the value 0x7FFF (data not available). See PGN 127258 for information regarding the SSC300 and its ability to transmit magnetic variation.
  • Page 36 3: Pitch – This field is used to report the vessel’s pitch. 4: Roll – This field is used to report the vessel’s roll. 5: Reserved – This field is reserved by NMEA; therefore, the SSC300 sets all bits to a logic 1.
  • Page 37 11: Software Code (16 bits) – set this field’s value to 0x0001, which is the identifier for this version of the Maretron proprietary protocol 12: Maretron Command – set this field’s value to 0xF0, which will initiate a reset and start the calibration process.
  • Page 38 6: Number of First Commanded Parameter (8 bits) – set this field’s value to 0x1 7: Maretron Vendor ID and Industry Code (16 bits) – set this field to 0x9889, which is a combination of Maretron’s vendor ID and the marine industry code 8: Number of Second Commanded Parameter (8 bits) –...
  • Page 39 PGN 126208 – NMEA Command Group Function – Maretron Proprietary Reset. This will initiate a reset and force the SSC300 to start the calibration process (see page B3 for complete description of PGN 126208). 5. Continue turning the vessel through at least 3 circles until you see one of the following ®...
  • Page 40 SSC300 User’s Manual This page intentionally left blank Appendix B – NMEA 2000 ® Page B6 Interfacing Revision 1.0...

  • Page 41: Appendix C - Connecting To A Pc Via Nmea 0183

    Connect system ground to V- (black). 3. Start Hyperterm and connect it to the port to which the SSC300 is connected (4800 or 38400 bps, depending on the baud rate the compass is set to, 8 data bits, no parity, 1 stop bit). You should now see compass data in the form of NMEA0183 sentences on the Hyperterm screen.
  • Page 42 SSC300 User’s Manual This page intentionally left blank Appendix C – Connecting to a PC Via NMEA 0183 Page C2 Revision 1.0...

  • Page 43: Appendix D - Configuring The Ssc300 To Transmit True Heading Data

    There are two choices for a magnetic variation source for the SSC300, GPS (preferred) or manual. GPS Variation In order to use a GPS to enable the SSC300 compass to transmit true heading data, the GPS antenna must transmit magnetic variation data. Not all GPS antennas transmit magnetic variation data. Please consult the GPS antenna user’s manual for details.
  • Page 44 For example, to program the SSC300 with 18.0° easterly magnetic variation, as might be seen in Seattle, WA, USA, type the sentence: $PMAREXE,SSC300,,5D,0,18.0,, To program the SSC300 with 5.5° westerly magnetic variation, as might be seen on the east coast of Florida, USA, type the sentence: $PMAREXE,SSC300,,5D,0,-5.5,, 5.

  • Page 45: Appendix E - Configuring The Ssc300 To Transmit The Hdt Sentence For

    *Note: For compasses with firmware revision 1.8 or greater, a NMEA 0183 checksum is optional. For compasses with earlier firmware revisions, a correct NMEA 0183 checksum is required. 4. Type “exit” or simply power the SSC300 off and then on again. You should now observe HDT sentences being transmitted.
  • Page 46 SSC300 User’s Manual This page intentionally left blank Appendix E – Transmitting the HDT Sentence Page E2 Revision 1.0...
  • Page 47 Transmitted by the SSC300 The identifier for NMEA0183 sentences transmitted by the SSC300 is set by the factory to be “II”; however, some users may need to change this to other values. This addendum explains how to change the NMEA 0183 identifier for the SSC300.

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