Saturday, June23, 2018

' Autohelm Raymarine: St50 Plus Wind Wind Speed St50 '

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Any reference to Raytheon or
RTN in this manual should be
interpreted as names Raytheon and RTN
are owned by the
Raytheon Company
i Autohelm
Operation and
ackage Contents
The following items are included in the ST50 Plus Wind package
1 ST50 Plus Wtnd control head
2 Fixing studs 2 offI
3 Thumb nuts 2 oftI
4 Fitting template
5 Power cable
6 Masthead transducer
7 Control head cover
8 Junction box
9 Operation and Installation handbook
10 Worldwide Service Centre handbook
11 Warranty 1
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
21 Connection to the Control Head 9
22 Masthead Transducer Installation 9
31 FatFinding ll
32 Maintenance 12
41 Selection 14
42 Illumination 14
Chapter 5 CODE Lock Security 15
Chapter 6 Calibration 17
61 Initial Calibration 18
62Extended Cabration 20
Chapter8 25
81 Package Set 25
82 Operation 26
3 e A hnn L
The ST50 Plus Wind instrument features a 360 degree apparent wind scale
and a sensitive yet stable needle drive that delivers accurate information under
even the most demanding conditions
The unit can be configured to operate as a master or a dedicated repeater unit
When used as a master the unit displays data received directly from the
masthead transducer whereas repeater mode displays wind information
already on the SeaTalk bus
These instruments also incorporate a security feature to protect units
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 1 Control Head Installation
1lOmm 433in 3875mm 15in
r1 1lOmm
The ST50 plus Wind 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 9infrom a compass
l At least 500mm 2Oin from radio receiving equipment
l Accessible from behind for ease of installation and cable running
To prevent moisture forming on the display window the unit
a small vent in the cable boss Therefore the
control head must be sited where the rear case is protected from
The rear case is fitted with a foam gasket to form a watertight seal between Bracket Mounting
the instrument and the selected installation face
The ST50 Plus Wind can as an alternative be bracket mounted using the
Autohelm Mounting Kii
Because the instrument breathes through the vent in the rear case this bracket
2 Mounting Procedure is for interior use only
1 Make sure ibatthe selected location is clean smooth and flat
Flush Mounting
2 Apply the seffadhesiie template supplied to the selected location and
A flush mounting kii is available for installations where a flush mount is required
mark the centres for the fixing studs 21 and the cable boss 1
or more desirable Full installation instructions are provided with the kit
3 Drilltio 4mm532in clearance holes for the fixing studs 2 through the
bulkhead Remove the template
4 Cut the clearance hole for the cable boss 1 using a 50mm 2irr diameter
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 using
the thumb nuts 3
3 Power Supply standalone operation 15 Connection of Separated lnstnments
Separated instruments can be connected using one of the range of SeaTalk
Extension Cable 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 the following
may be used instead of the SeaTalk cable
l 22 AWG 2 core screened cable with a minimum copper area of 05mm2
5 Amp circuit breaker
12v supply
1 Connect the 2m 6ftI power supply cable to the distribution panel
2 Cut the cable to length and connect the red wire totbe 12V terminal and
screen to the OV terminal
3 Cut back and insulate the yellow wire
r 1
4 Protectthe circuitwith a I I
1 1 box
Longer runs to the power supply can be made using the 9m 3Oftl SeaTalk
Extension Cable D131
1 ScreenJ L Red I Ucreen 1
Power Supply SeaTalk qperation
I llll i
All instruments in a SeaTalk system receive power and information from the
SeaTalk bus Each instrument has two SeaTalk connectors 3 pin on 15Omm
6in tails To supply power and information to the instrument simply plug the
adjacent instrument tails into the ST50 Plus tails
To transducer
r a
SeaTalk tails SeaTaik tails 3i
Chapter 2 Transducer Installation
Installations with a large number of instruments on a SeaTalk bus may require
a second riigmain connection to the power supply breaker to prevent
21 Connection to the Control Head
excessive voltage drops Whether a second ring main is required can be The ST50 Plus Wind is supplied with a transducer
cable tail and connector
determined from the following which simply plugs into the 30m cable
Cable run upto 1Orn 33ft
22 Masthead Transducer Installation
Single connection 13 instruments maximum
Secofd connection 26 instruments maximum
Cable runupto 20m 66ft
Single connection 7 instruments maximum
Second connection 13 instruments maximum
The second ringmain should be connected to the spare lead on the last
instrument in the chain and directed back to the circuit to SeaTalk Compaljble Autopilots
lf the installation includes a SeaTalk compatible Autopilot fhe ST50 instru
ments may be connected to the SeaTalk bus at any point No independent
connection to the 12V power supply is necessary as the instruments receive
For best performance the mounting block must be fixed to a horizontal
power from the Autopilot course computer
surface lfthe mast top is not horizontal make up a wedged packing piece 1
To autopilot
SeaTalk BUS
To any further
ST50 Instruments
or Autopilot
Control Units
1 position of the two
selftapping screws
Chapter 3 Fault Finding and 2 Drill two holes using the 4mm 532in drill bii supplied Chapter 3 Fault Finding and
3 Apply sealing compound to the bottom of the mounting block 2
4 Secure the mounting block to the mast top using the two screws 4 31 Fault Finding
5 Tighten the locking ring 3 securely by hand All Autohelm products are prior to packing
and shipping subjected to
comprehensive test and quality assurance programmes However if a fault
Cabling arises with the ST50 Plus Wind
the following table will help to identify the
1 Cut the cable so that there is sufficient length to run from the masthead probable cause and provide the most likely
iransducer to the below deck junction box I Fault Cause
2 Feed the cable down the mast if the mast is deck stepped the cable No supply
Check supply
Instrument display
should be passed through the deck using a proprietary deck gland blank
Check cabling and
3 To allow for unstepping connect the cable to the junction box close to its
security of SeaTalk
entry into the vessel
4 Run the cable from the junction box back to the control head
Check 5 Connect the control head and masthead transducer cable tails together
Return unit for repair
CL is displayed when CODELOCK security Correct code number
unit is powered on system has been must be transmitted
activated before unit will operate
No exchange of SeaTalk cabling Check security of
information between problem SeaTalk connectors
SeaTalk instruments fie
illumination levels Remove instruments one
by one to isolate faulty
Failure of a group of SeaTalk Check security of
instruments in SeaTalk SeaTalk connectors
chain problem between functioning and
ST50 plus Wind Close HauledMWG Operation and Installation Maintenance
Chapter 4 Operation
Instrument The ST50 Plus Wind can be used as a
standalone unit or when connected
to other SeaTalk instruments part of a fully integrated Certain atmospheric conditions may cause condensation to form on the
system This integrated system can then be linked to any of the Autohelm
control head window This will not harm the instrument and can be cleared by
SeaTalk compatible autopilots
increasing the illumination setting to Level 3
When the unit is poweredup apparent wind speed and angle or true wind
Chemical and abrasive materials must not be used to clean the ST50 Plus
speed and angle will be displayed depending on the last selection prior to the
Wind instrument if it is dirty clean with a soft damp cloth
power being turned off
Transducer If the key is pressed while in this mode
the TRUE or APP apparent
Apply silicone grease to the mounting block and transducer contacts every legend will flash to indicate a maximum recorded
reading Also a 1 second
season press and hold of this button will return the display to
the current reading
Always remember to remove the masthead transducer when stepping or
unstepping the mast
Examine all cables for chafing or damage to the outer shield and where
necessary replace and resecure
For advice or further information regarding the installation of this product
please contact the Autohelm product Support Department or your own
National ST50 Plus Wind 81 Close HauledNMG Operation and installation Wind Selection
Chapter 5 CODE Lock Security
PressCAL momentarily to alternate toggle between true or apparent wind
Once selected a solid marker appears above the selection 51 Secubty Code
The ST50 Plus range of instruments is equipped with a security code feature
called CODE Lock to protect your system against possible theft Entered
using the keypad on digital instruments this is a four figure number of your
CAL choice that can be entered at every powerup or transmitted
automatically on the SeaTalk bus when there is a secure belowdecks master
The analogue ST50 Plus Wind will only respond to transmissions on the
D SeaTalk bus a security code cannot be entered from this unit Once a security
code has been transmitted to this unit itwill not operate until the correct code
arent wind speed and direction True wind speed and direction
0246 number has been received from the master instrument
Note Please refer to a digital instrument
handbook for complete details on the
If vessel speed is not available on the SeaTalk bus when true is selected the CODE Lock security system
LCD will display a series of dashes and the pointer will continue to show the
apparentwind The ST50 Plus Wtnd has three levels of illumination plus off
1 PressCAL for 1 second to display the current illumination level
Correct security code received incorrect security code or
master missing DLlll
2 PressCAL within 8 seconds to selectthe required level L3 High L2
Medium Ll Low and LO off
The LCD display will return to normal operation 8 seconds after the last key
6 Calibration
The ST50 Plus Wind must be calibrated before it is used for navigational
purposes Also as it leaves the factory the instrument is setwith units in knots
zero wind angle off set and damping set at 4 seconds These settings can be
adjusted as described in the following sections
cThpterS Calibration
Windspeed Unit Selection
1 Press and hold CAL until Ul Knots or U2 is displayed
Windvane Alignment
Before the unit is used for navigational purposes the masthead transducer
must be accurately aligned to thevessel Before this procedure is carried out
the windvane should be linearised as follows
1 Powerup lhe ST50 Plus Wind instrument
2 Tumthevessel through two complete circles making sure that the
windvane remains in line with the wind the instrument will linearise the windvane
Alignment 2 Press CALwithin 8 seconds to change the windspeed
units selection
1 Press and hold CAL for 2 seconds until CO is displayed by the LCD
3 After 8 seconds the wind instrument returns to normal operation
2 Press to move the pointer to the correct wind angle
l Press once to move the pointer by 1 degree
l Press for 1 second to move the pointer by 10 NOk
The LCD will now display the applied correction
3 Press and hold CAL for 2 seconds to exit and store windvane alignment
Chapter 6 Calibration Extended Calibration Notes
Boat Show Mode
Boat show mode S is a dealer demonstration program only Under no
circumstances must this program be engaged when this unit is installed on
your vessel display must therefore always be set to SO inactive
r firen wL
l3ulkdEgle Damping
Apparent wind angle damping is identified by an upper case H and a number
between 1 and 9 seconds
Apparent Wind Speed Damping
Apparent wind speed damping is identified by an upper case J and a number
between 1 and 9 seconds
True Wind Speed Damping
True wind speed damping is identified by a lower case c and a number
between 1 and 9 seconds
APPARENT WIND True Wind Angle Damping
True wind angle damping is identified by a lower case d and a number
between 1 and 9 seconds
The options in extended calibration are changed using the rocker key
ST50 plus Whd Close IfauladG Operadon and lnstaladm Handbook
Chapter 7 General Dimensions
Power supply 10to16v
Power consumption 70ma normal lOOma illumination on
Temperaiure range oto7odegc
PQparentwind speed Apparent wind angle
Maximum wind speed apparent or true
UIitS software programmable
Damping Repeater capability Software programmable
Im Chapter8 Close HauledVMG
The ST50 fs Close HauledAMG provides an expanded close hauled
81 Package Set
1 2 Fixing studs
3 Thumbnuts
4 Ftingtempbte
5 Operation and installation handbook
6 7
82 Operation
There are four ilhnination settings L3 0jhtestI L2 Ll and LO off
83 lnstaMion and Maintenance
Control head installation and maintenance procedures are identical to the Wind

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