Distributed by Any reference to Raytheon orRTN in this manual should be interpreted as RaymarineThe names Raytheon and RTN are owned by the Raytheon Company MULTIOperation and Installation Autohelm and SeaTalk are registered Trade Marks of Nautech policy of continuous improvement and updating may change product specifications without prior notice Copyright Nautech 1993Package 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 aContents introduction 1 Chapter 1 Control Head Installation 3 11 Sing 3 12 Mounting Procedure 4 13 Power Supply standalone operation 6 14 Power Supply SeaTalk operation 6 15 Connection of Separated Instruments 7 16 Ring Connection 8 17 Connection to SeaTalk Compatible Autopilots 8 18 Connection to other Marine Equipment 9 Chapter 2 Fault Finding and Maintenance 11 21 Fault Finding 11 22 Maintenance 1 2 Chapter 3 Operation 13 31 Depth Key 1 4 32 Log Key 1 5 33 HDG Key 1 6 34 Wind Key 1 8 35 Dead Reckoned Functions 19 36 Display Contrast 19 Chapter 4 CODE Lock Security 21 Chapter 5 Calibration 25 51 Initial Calibration 26 52 Intermediate Calibration 28 53 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 Madeb 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 operation2 Chapter 1 Control Head Installation 1lOmm 433in 3875mm 15in tl 11 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 ST50 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 watertight 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 Fg studs 3 Thmb nuts 4 Gasket 212 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 selfadhesive 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 532in 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 3113 Power Supply standalone operation 15 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 05mm2 1 1 Connect the 2m 16ftl 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 Cables14 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 Ring Connection 18 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 ringmain 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 Tridata17 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 degC 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 GroundChaoter 2 Fault Finding and 2 Fault Finding and Maintenance21 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 fusebreaker 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 SeaTalk connectors chain problem and nonfunctioning units CTM is Phc Mi r tha ad Indslls4ku Usndhk 22 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 1531 Depth Key 32 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 bus16 thmtav 11 fXad I33 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 True18 Chaptar 3 Oparatbfl34 Wind Key 35 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 36 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 antitheft 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 instruments0 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 ModelOff 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 antitheft feature Mode 2 CODE Lock OnceOnly 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 PowerOn page 24 Once Only Entry In the PowerOn 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 instruments 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 NumberSetting 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 setOn PowerUp Chapter 5 Calibration Action Display Shows The ST50 Plus Multi can be adjusted to suit your particular requirements1 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 section2 Press DEPTH once CODELOCK Cal Off3 4 seconds after CODELOCK Cal Off ENTER CODE4 Press LOG I I 5 Press HDG or WIND to select first 1 number I I6 Press LOG to accept number 1 7 Press HDG or WIND to select second 12 number8 Press LOG to accept number 1 29 Press HDG or WIND to select third 123s number10 Press LOG to accept third number 1 2 311 Press HDG or WtND to select fourth 1234 number12 Press LOG to accept code 123413 Press LOG PWR ON14 Press LOG within 10 seconds CODELOCK Cal set15 To exit CODELOCK press DEPTH and Normal operation LOG together for 2 secondsff you do not exit CODELOCK Cal set within 10 seconds the display willchange to CANCEL CODE You now have the option of cancelling thecode by pressing LOG to return to the display or exit as described in action 15 aboveYour Code NumberFor future reference enter your chosen code number into the box belowFor obvious reasons please store this handbook in a safe the unit is powered on you are prompted to enter the code numberTo enter the number carry out actions 4 to 12 above and press LOG26 Chapter 5 Calibration 2751 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 VARATlON 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 HDG28 chaptar5 calfe 2952 Intermediate Calibration 53 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 Oferation and lrstalfatjon Handbook Chapter 6 General Calibration Notes Chapter 6 General Specification With the exception of the damping menus which are adjusted using HDG andor WIND the following options are modified using the WIND key Dimensions Power supply 10 to 16V Calibration OnOff 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 degC CAL 0 Calibration locked ie no access Illumination 3 levels plus off CAL 1 Calibration unlocked ie 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 onboard 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