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' Autohelm Raymarine: St50 Plus Multi Multi function Display St50 '



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 Any reference to Raytheon or
RTN in this manual should be
  interpreted as Raymarine.
The names Raytheon and RTN
       are owned by the
     Raytheon Company.
   MULTI
Operation and
 Installation
           Autohelm and SeaTalk are registered Trade Marks of Nautech Limited
Autohelms policy of continuous improvement and updating may change product specifications
                                    without prior notice
                                 Copyright Nautech 1993
Package Contents
            The following items are included in the ST50 Plus Multi package:
            1 . ST50 Plus Multi control head
            2. Fixing studs (2 oftI
            3. Thumb nuts (2 offl
            4. Control head cover
            5. Power cable
            6. NMEA cable
            7. Securii sticker
            8. Fiing template
            9. Operation and installation handbook
            10. Worldwide Service Centre handbook
            11. Warranty document




                                                                               a
Contents
           introduction .......................................................................         1
           Chapter 1: Control Head Installation ......................................                  3
                   1.1 Sing ........................................................................... 3
                    1.2 Mounting Procedure ...................................................... .4
                    1.3 Power Supply (stand-alone operation) ................................ 6
                    1.4 Power Supply (SeaTalk operation) ..................................... 6
                    1.5 Connection of Separated Instruments ................................ 7
                    1.6 Ring Connection ............................................................. 8
                    1.7 Connection to SeaTalk Compatible Autopilots ..................... .8
                    1.8 Connection to other Marine Equipment ............................... 9
           Chapter 2: Fault Finding and Maintenance ............................                        11

                    2.1 Fault Finding ................................................................ 11
                    2.2 Maintenance ................................................................ 1 2
            Chapter 3: Operation ........................................................               13

                    3.1 Depth Key ................................................................... 1 4
                    3.2 Log Key.. .................................................................... 1 5
                    3.3 HDG Key ..................................................................... 1 6
                    3.4 Wind Key .................................................................... 1 8
                    3.5 Dead Reckoned Functions ............................................. 19
                    3.6 Display Contrast .......................................................... 19
            Chapter 4: CODE Lock Security ..........................................                    21

            Chapter 5: Calibration .......................................................              25
                     5.1 Initial Calibration ........................................................... 26
                     5.2 Intermediate Calibration ............................................... .28
                     5.3 Extended Calibration .................................................... .29
             Chapter 6: General Specification..               .......................................   31
 Introduction
                The ST50 Plus Multi is a powerful multifunction repeater that allows you to
                display many parameters transmitted onto the SeaTalk bus by other
                instruments. As well as repeating `live' information, the Multi is able to
                provide computed functions derived from data supplied by other SeaTalk
                instruments.
                The following computed functions are available with a full SeaTalk system:
                VMG, True Wind Direction, True Wrnd Speed, Tack Course, Distance Made

(b              Good and Course Made Good.
                The ST50 Plus Multi also incorporates a security feature to protect
                instruments mounted in vulnerable areas such as the cockpit, helm
                or mast.
                Thank you for purchasing an Autohelm product. May we take this
                opportunity to wish you years of trouble free operation.
2




    Chapter 1: Control Head Installation
                        1lOmm (4.33in)          38.75mm (1.5in)


                      t------l




    1.1 Sing
                  The ST50 Plus Multi is designed for above or below deck installation
                  where it is:
                  l   Easily read by the helmsman
                  l   Protected against physical damage
                  l   At least 230mm (gin) from a compass
                  l   At least 500mm (20in) from radio receiving equipment
                  l   Accessible from behind for ease of installation and cable running
                  Cation:
                  To prevent moisture forming on the display window, the ST!50 Plus
                  Multi `breathes' through a small vent in the cable boss. Therefore,
                  the control head must be sited where the rear case is protected
                  from contact with water.
                  The rear case is ftied with a foam gasket to form a water-tight seal
                  between the instrument and the selected installation face.
                                                                                                 Bracket Mounting
                                                                                                          The ST50 Plus Multi can, as an alternative, be bracket mounted using the
                                                                                                          Autohelm Mounting Kii (Cat. No. D130).




                L

                1 Cable boss 2 F&g studs 3 Thmb nuts 4 Gasket
                                                                                                                                                          2


1.2 Mounting Procedure                                                                                    Note: Because the instrument breathes through the vent in the rear case,
                1. Make sure that the selected location is clean, smooth and flat.                    .   this bracket is for interior use only.

                2. Apply the self-adhesive template (supplied) to the selected location          Flush Mounting
                    and mark the centres for the futing studs (2) and the cable boss (1).
                                                                                                          A flush mounting kit is available for installations where a flush mount is
                3. Drill two 4mm (5/32in) clearance holes for the fixing studs (2) through                required or more desirable. Full installation instructions are provided with
                    the bulkhead. Remove the template.                                                    the kit (Cat. No. D187).
                4. Cut the clearance hole for the cable boss (1) using a 50mm (2in)
                    diameter cutter.
                5. Screw the two fixing studs (2) into the control head.
                6. Pass the SeaTalk cable and transducer tails through the cableboss
                    (1) clearance hole.
                7. Assemble the control head to the bulkhead and secure from behind          0
                    using the thumb nuts (31.
1.3 Power Supply (stand-alone operation)                                                           1.5 Connection of Separated Instruments
                                                                                                                   Separated instruments can be connected using one of the range of
                                                                                                                   SeaTalk Extension Cables. These cables are supplied with a SeaTalk
                                                                                                                   connector fitted to each end. A junction box can be used to join the cable if
                                                                                                                   it is cut for easier routing or shortening.
                                                                                                                    If preferred, any 2 core, screened cable conforming to the following
                                                                                                                    specification may be used instead of the SeaTalk cable.
                                                                                                                    l   22 AWG, 2 core screened cable with a minimum copper area

                                                                                               O                        of 0.5mm2.
                                                                                                                                                                                               1




                 1. Connect the 2m 16ft.l power supply directly to the distribution panel.
                 2. Cut the cable to length and connect the red wire to the + 12V terminal
                    and screen to the OV terminal.
                 3. Cut back and insulate the yellow wire.
                                                                                                                                                                             rYellowl
                 4. Protect the circuit with a 5A circuit breaker.
                 Note: Longer runs to the power supply can be made using one of the
                 SeaTalk Extension Cables.

1.4 Power Supply (SeaTalk operation)
                                                                                                                                                                   ScreenJ   L Red A bcreen
                 All instruments in a SeaTalk system receive power and information from
                 the SeaTalk bus. Each instrument has two SeaTalk connectors (3 pin) on
                  150mm (6in) tails. To supply power and information to the instrument
                  simply plug the tails from adjacent instruments into the ST50 Multi tails.   0

                                               To transducer




                          SeaTalk tails       SeaTalk tails
                                                                     il
                                        ST50 Plus Multi Operatian and fmtalfatian Handbank             ChaDterl:ConWHeedhtaUaiion




1.6 Ring Connection                                                                                    1.8 Connection to other Marine Equipment
                 Installations with a large number of instruments on a SeaTalk bus may                                       The ST50 Plus Multi has an NMEA 0183 data output connector (1).
                 require a second ringmain connection to the power supply breaker to                                         Providing it is available on the SeaTalk bus, the following information will
                 prevent excessive voltage drops. Whether a second ring main is required                                     be transmitted every 1 to 2 seconds:
                 can be determined from the following:
                                                                                                                              Sentence     Content                       Instrument required on
                 Cable run upto 1Om (33ft)                                                                                                                               SeaTalk Bus
                 Single   connection:     13 instruments maximum                                                              VWR          Apparent Wind Speed           Wind
                                                                                                                                           (knots) and Direction
                 Second connection:       26 instruments maximum
                                                                                                                              DBT          Depth of water below          Depth or Tridata
                 Cable run upto 2Cbn (66ft)
                                                                                                                                           transducer (feet)
                 Single   connection:     7 instruments maximum                                                               HDM          Magnetic Compass              Steering Compass or SeaTalk
                 Second connection:       13 instruments maximum                                                                           Heading                       Autopilot

                 The second ring-main should be connected to the spare lead on the last                                       HSC          Locked Magnetic Compass SeaTalk Autopilot (operating in
                                                                                                                                           Heading                 Auto mode)
                 instrument in the chain and directed back to the circuit breaker.
                                                                                                                              VHW          Water Speed (knots)            Speed or Tridata
1.7 Connection to SeaTalk Compatible Autopilots                                                                                            Magnetic and True              Compass or SeaTalk Autopilot
                                                                                                                                           Compass Heading
                 lf the installation includes a SeaTalk compatible Autopilot the ST50 Plus                                                 Longitude and Latitude         GPS or Navdata
                                                                                                                              GLL
                 instruments may be connected to the SeaTalk bus at any point. No
                                                                                                                              VTG          Course Over Ground             GPS or Navdata
                 independent connection to the 12V power supply is necessary as the
                                                                                                                                           Speed Over Ground
                 instruments receive power from the Autopilot course computer.
                                                                                                                              BWC          Bearing and Distance to        GPS, Navdata or Navcenter
                                                                                                                                           Wavpoint
                                                                                                                               MTW         Water Temperature (deg.C)      Speed or Tridata



                   To autopilot                                                                                               A lm (3ft) NMEA Interface cable (2) is supplied with the Multi. The red wire
                   SeaTalk BUS
                   Connection
                                                                                   I
                                                                                                   0                          should be connected to the signal input and the blue wire to the signal
                                                                                                                              ground (OVI of the other marine equipment. Up to two NMEA 0183
                                                                                                                              receivers may be connected to each Multi.
                                                                            To any further
                                                                            ST50 Instruments
                                                                            or Autopilot                                            RED (Signal) 2
                                                                            Control Units
                                                                                          DLI34l
                                                                                                                                      I             I




                                                                                                                                    BLUE (Ground)
Chaoter 2: Fault Finding and Maintenance




Chapter 2: Fault Finding and Maintenance
2.1 FautFmding
                        All Autohelm products are, prior to packing and shipping, subjected to
                        comprehensive test and quality assurance programmes. However, if a fault
                        arises with the ST50 Plus Mulli, the following table will help to identify the
                        probable cause and provide the most likely cure.

                         Fault                     Cause                      Action
                         Instrument display        No supply.                 Check supply.
                         blank.
                                                                              Check cabling and
                                                                              security of SeaTalk
                                                                              connectors.

                                                                              Check fuse/breaker.

                                                                               Return unit for repair.

                         Instrument displays       The `Code Lock' feature Enter correct code
                         `CODELOCK set',           has been set.           number.
                         ENTER CODE


                         No exchange of             SeaTalk cabling            Check security of
                         information between        problem.                   SeaTalk connectors.
                         SeaTalk instruments.
                                                                               Disconnect instruments
                                                                               one by one to isolate
                                                                               faulty unit.
                         Failure of a group of      SeaTalk                    Check security of
                         instruments in SeaTalk     cabling/connector          SeaTalk connectors
                         chain.                     problem.                   and non-functioning
                                                                               units.
                                          CTM
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                                                 _-- __.-.- tha-      ad _..-
                                                             -.---. _ -.-  Indslls4ku
                                                                               -..- --__ Usndhk
                                                                                         ..- .----. _




2.2 Maintenance                                                                                         Chapter 3: Operation
        Instrument                                                                                                   The ST50 Plus Multi can be connected to other ST50 instruments to
                                                                                                                     provide a fully integrated system that can be linked to any of the SeaTalk
                  Certaii atmospheric conditions may cause condensation to form on the                               compatible autopilots. The Multi also provides NMEA 0183 data for
                  conirol head window. This will not harm the instrument and can be cleared by                       navigation receivers. chart olotters or other navigational eouioment.
                                                                                                                                          I      .                               .     .


                  increasing the illumination setting to Level 3.
                                                                                                                     Note: The operational flow charts on the following pages show the
                  Chemical and abrasive materials must not be used to clean the ST50 Plus                            information available with a full SeaTalk system.
                  Muiti instrument; if it is dirty, clean with a soft, damp cloth.
                                                                                                                     Units of measure follow those of the main instrument,
        Cabling
                  Examine all cables for chafing or damage to the outer shiefd and, where
                  necessary, replace and resecure.

        Acme
                  For advice, or further information regarding the installation of this product,
                  please contact the Autohelm product Support Deparlment or your own
                  National Distributor.
                                                                                                       chaepter3: operation   15



3.1 Depth Key                                                                                          3.2 Log Key




                                                                                             :I
                                                                                             I
                                                                                                  1)

                                                           LIGHTS
                                                           LEVEL 3




                                                           LIGHTS
                                                           LEVEL 2




                                                           LIGHTS
                                                           LEVEL 1




                                                                                           0 \ e
                                                          LIGHTS OFF
                                                                                             I
                Note: Depth alarms can be silenced by pressing any key. Also, the
                Fathoms display is only availble when feet is transmitted on the SeaTalk
                bus
16                  S75OPhsMuHiOparaiimandlnstallationHandbodt   t'hm.tav
                                                                 -.--. -. 11. fX.ad.....
                                                                              -"-."I-..




3.3 HDG Key                                                                    HDG Key Notes
                                                                                           True Heading
                                                                                           True headings are displayed only if variation is present on the SeaTalk bus
                                                                                           or set in calibration on the Multi instrument.
                                                                                           Distance Made Good and Course Made Good
                                                                                           The Distance Made Good and Course Made Good displays can be reset
                                                                                           by pressing and holding HDG for 4 seconds.




                  TRUE
                 HEADING




                MAGNETIC
                 HEADING




              DISTANCE MADE
                GOOD DMG)




              COURSE MADE
               GOOD (True)
18                         sT!5olJhlaMulb'oparauonarKlhsta~onHandbook   Chaptar 3: Oparatbfl



3.4 Wind Key                                                            3.5 Dead Reckoned Functions
                                                                                               Distance Made Good (DMG) and Course Made Good (CMG) are dead
                                                                                               reckoned functions with no correction for tidal set or drii.

                                                                                               I             North



                                 I
                      APPARENT WIND SPEED




               I         BEAUFORTSCALE
                                                    I

                                                                        3.6 Display Contrast
                                                                                                   The contrast can be adjusted to achieve optimum legibility at any angle.
                     APPARENT WIND DIRECTION




                    TRUE WlND DlRECTlON Clruel




                                 I
                   TRUE WIND DIRECTION (Magnetic)




                                                                                                   1.   Momentarily press DEPTH and LOG together.
                                                                                                   2. Press HDG or MD to increase or decrease the contrast setting (the
                                                                                                      range being between 1 and 15).
                                                                                                   3. Press DEPTH and LOG together momentarily to store the
                                                                                                      contrast setting.
                                                                                                   Note: A high setting will suit installations where the control head will be
                                                                                                   viewed from above.
        Chapter 4: CODE Lack Secwity




        Chapter 4: CODE Lock Security
                              The ST50 Plus range incorporates an anti-theft feature called `CODE
                              Lock'. Designed to protect individual instruments or complete systems in
                              vulnerable areas, `CODE Lock is a four digit number that you programme
                              into the permanent memory of a selected `master' instrument.
                               Note: A `master' instrument is a digital unit on which the code number can
                               be entered, and then, if part of an integrated system, transmitted to other
                               ST50 Plus instruments.

0   e                          This facility means that, should a CODE Locked instrument be removed
                               from the vessel without your permission, it cannot be operated without the
                               four digit security number.
                               `CODE Lock can be used in one of three modes:

                               Model:Off
                               As it leaves the factory `CODE Lock' is set to off. In this mode the instru
                          *    ment will operate normally when it is switched on, however, the unit will not
                               be protected by the anti-theft feature.
                               Mode 2: `CODE Lock' Once-Only Entry (page 23)
                               This mode is designed for systems with a digital ST50 Pius instrument in a
                               safe, belowdecks location. This instrument can then be used as a
                               `master' to enter the four digit code number and, when the power is
                               switched on, automatically transmit the code to all the instruments in the
                               system. The advantage of this mode is that, with the master safely below
                               deck, code entry via the keypad is a onceonly operation on installation.




                                                  Master Unit


                                                                t Power



                                Once `CODE Lock' is set the system operates normally as soon as the
                                power is switched on. In other words, the `CODE Lock security is invisible.
                                ST50 plus Multi Operadon and fnstalation Handbaak



        Mode 3: `CODE Lock' input at Power-On (page 24)                                    Once Only Entry
        In the `Power-On mode', the ST50 Plus is configured so that you have to                     Action                                      Display Shows
        enter the four digit number on a `master' digital instrument every time the
                                                                                           1        Press and DEPTH and LOG together for        CAL after 2 seconds and
        system is switched on. Until this number is entered the instrument(s)                       4 seconds                                   ZO98VXX after 4 sec.
        will not operate.
                                                                                           2        Press DEPTH once                             CODELOCK Cal. Off
        This mode is particularly useful when you are unable to position a `master'
                                                                                           3        4 seconds after `CODELOCK Cal. Off           ENTER CODE
        instrument below decks and, therefore, all the vessels valuable instrumen                                                                I 8
        tation is left in a vulnerable area.                                               4        Press LOG                                     - - - -
                                                                                           5        Press HDG or WIND to select                  1 - - -
                                                                                                    first number
                                                                                           6        Press LOG to accent number                   1 `11
                                                                                           7        Press HDG or WIND to select second           12--
                                                                                                    number
                                                                                           8        Press LOG to accept number                   1 2'-`-
                                                                                           9        Press HDG or WIND to select third            123-
                                                                                                    number
                                                                                           10       Press LOG to accept third number             1 2 3'-'
                                                                                           11       Press HDG or WIND to select fourth           1234
                 IY-        Power

                                                                                           12
                                                                                                    number
                                                                                                     Press LOG to accept code                    `1 2 3 4'
        Should a CODE Locked instrument be removed from the system, it will not            13        Press LOG                                   PWR ON?
        operate until the correct four digit security number is entered or received.                                                             CODELOCK Cal. set
                                                                                               14    Leave PWR ON? flashing for 10 seconds
        lf your selected master instrument fails for any reason, the security code             15    To exit CODELOCK, press DEPTH and           Normal operation
        number can be entered via another ST50 Plus instrument in the system.                        LOG together for 2 seconds
        However, until another instrument is set as a master or the existing master
         is replaced, the securii code will have to be entered every time the


                                                                                       l
         system is switched on.                                                            lf you do not exit `CODELOCK Cal. set' within 10 seconds the display will
                                                                                           change to CANCEL CODE. You now have the option of cancelling the
        Note; A warning sticker is provided with each instrument. lf you have set 0
                                                                                           code, by pressing LOG to return to the __ _ _ display, or exit as de
        `CODE Lock, position this warning sticker in a prominent location to deter
                                                                                           scribed in action 15 above.
        potential thieves.
                                                                                           Your Code Number
Setting Up the Security Code                                                               For future reference, enter your chosen code number into the box below.
        When the ST50 Plus Multi is switchedon for the first time the security
        feature is set to off. To turn the `CODE Lock' feature on, proceed
        as follows:                                                                                    I                I
                                                                                               For obvious reasons, please store this handbook in a safe place.
                                                                                               Operation
                                                                                               Once only `CODE Lock' entry is invisible once it has been set.
On Power-Up                                                                 Chapter 5: Calibration
      Action                                      Display Shows                           The ST50 Plus Multi can be adjusted to suit your particular requirements
1     Press DEPTH and LOG together for 4          CAL after 2 seconds and                 using the initial, intermediate and extended calibration menus described in
      seconds                                     ZO98VX after 4 sec.                     this section.
2     Press DEPTH once                            CODELOCK Cal. Off
3     4 seconds after `CODELOCK Cal. Off          ENTER CODE
4     Press LOG                                   I I
                                                   - _--
5     Press HDG or WIND to select first           1- - -
      number
                                                   I I
6     Press LOG to accept number                  1- - -
7     Press HDG or WIND to select second          12--
      number
8     Press LOG to accept number                  1 2'-`-
9     Press HDG or WIND to select third           123s
      number
10    Press LOG to accept third number            1 2 3'-'
11    Press HDG or WtND to select fourth          1234
      number
12    Press LOG to accept code                    `1234
13 Press LOG                                      PWR ON?
14    Press LOG within 10 seconds                 CODELOCK Cal. set
15    To exit CODELOCK, press DEPTH and           Normal operation
      LOG together for 2 seconds


ff you do not exit `CODELOCK Cal. set' within 10 seconds the display will
change to CANCEL CODE. You now have the option of cancelling the
code, by pressing LOG to return to the __ __ display, or exit as de
scribed in action 15 above.

Your Code Number
For future reference, enter your chosen code number into the box below.




For obvious reasons, please store this handbook in a safe place.
Operation
When the unit is powered on you are prompted to enter the code number.
To enter the number, carry out actions 4 to 12 above and press LOG.
26                                             Chapter 5: Calibration                                                                             27




5.1 Initial Calibration                                    Initial Calibration Notes
                                                                        Variation
                                                                        Heading information is transmitted onto the SeaTalk bus by the instrument
                                                                        reading the fluxgate compass. This can be the Autopilot or ST50 Steering
                                                                        compass which, in either case, should be set to display magnetic
                                                                        headings.
                                                                        Magnetic    Only
                                 t                                      lf you want to display just magnetic headings on the multi, set the Autopilot

                                              I)
                                CAL
                                                                        or ST50 Steering Compass to read magnetic and set variation on the Multi
                                                                        to zero (this is the factory default).

                                                                        True and Magnetic
                                                                        To display both true and magnetic headings, set the Autopilot or ST50
                              VAR!ATlON                                 Steering Compass to read magnetic. If available in the Autopilot calibration
                                                                        menu, Variation should be set on the Autopilot. Otherwise set variation on
                                                                    .   the Multi using WIND to increase and HDG decrease the displayed value.
                                                                        Note; When set to display true headings, significant changes in local
                                MULTI                                   variation will after the true display as the fluxgate compass measures the
                                                                        magnetic heading. If you want the Steering Compass or Autopilot to
                                                                        display true heading, please contact your local distributor or the Autohelm

                                  t                                     Product Support Department for advice.


                          I    DEPTH
                                                                        Storing Variation
                                                                        To store variation, press and hold DEPTH and LOG for 2 seconds.
                                                                        Multi, Depth, Log, HDG and Wind
                                                                        These functions are for use with the Multi Remote Control. Full details are
                                 LOG

                                          B   0                         given in the handbook supplied with remote control.

                                                                        Exii Initial Calibration
                                                                        Press and hold DEPTH and LOG for 2 seconds to exit initial calibration.
                                 HDG
28                                                                                          cha.ptar5: calfe                          29



5.2 Intermediate Calibration                                                                5.3 Extended Calibration




                                                                                                                        BUS TRUE
                                                                                                                       OR MAGNATIC




         Intermediate Calibration Notes
                  Refer to Chapter 4 for full details on the securkity feature.
                                                                                                                          REMOTE
                  To exit intermediate calibration, press and hold DEPTH and LOG together                              TRANSMISSION
                  for 2 seconds.
                  Exit Intermediate Calibration
                  Press and hold DEPTH and LOG for 2 seconds to exit intermediate
                  calibration.
                                 ST50 plus Multi Of)eration and lrstalfatjon Handbook   Chapter 6: General SpecScation




Extended     Calibration      Notes                                                     Chapter 6: General Specification
           With the exception of the damping menus, which are adjusted using HDG
           and/or WIND, the following options are modified using the WIND key.
                                                                                                               Dimensions:          110xllOmm(4.33x4.33in)
                                                                                                               Power supply:        10 to 16V
           Calibration     On/Off
                                                                                                               Power consumption:   30ma (normal) lOOma (illumination on)
           Calibration allows you to protect your selected settings. When calibration
           is enabled the initial and intermediate calibration cannot be modiiied.                             Temperature range:   0 to 70 deg.C

           CAL 0 = Calibration locked, i.e. no access                                                           Illumination:       3 levels plus off
           CAL 1 = Calibration unlocked, i.e. normal access
           Once locked calibration can be unlocked by entering extended calibration
           and selecting 1, calibration unlocked (the factory default is 1).
           Damping (Speed, VMG and True Wind)
           Damping adjusts the averaging applied to the displayed dated. The default
           setting is 4, however, the range is between 1 and 15.

           Boat Show
           Boat Show mode is a dealer demonstration program only. Under no
           circumstances must this program be engaged when this unit is installed
           on-board your vessel. The display must, therefore, be left set to
           `BSHOW 0'.
           Remote        Transmission
           The `MULTI' option is for future use only and should be set to 1.
           Bus (True or Magnetic)
           This option is set to true or magnetic, depending on whether the informa-
           tion on the SeaTalk bus is true or magnetic (the factory default is
           magnetic).

           Exit Extended Calibration
           Press and hold DEPTH and LOG for 2 seconds to exit extended
           calibration.


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