Raytheon ST80 User manual

Distributed by
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.

1
Chapter 2: Installation
autopilot
track
+1
+10
-1
-10
resp
auto
standby
disp
ST80
Autopilot
Keypad
Operation Manual

ST80 Autopilot Keypad Operation Manual 1
Package Contents
1. Autopilot keypad
2. Thumb nuts (2)
3. Threaded fixingstuds(2)
4. Whitesuncover
5. SeaTalkcable
6. Installationtemplate
7. Operation manual
8. Warrantycard
9. Operation cue card
10. Keypadinstallationguide

2 ST80 Autopilot Keypad Operation Manual
Contents
Chapter 1: Introduction .............................................................. 3
1.1 Introduction ..................................................................3
Chapter 2: Operation ................................................................. 4
2.1 Keypad Layout and Features .........................................4
2.2 Basic Operating Principles and Hints ..............................5
Auto and Standby ........................................................ 5
CourseChanges........................................................... 5
Track .......................................................................... 5
Track Advance/Acceptance .................................. 6
Response..................................................................... 6
2.3 Additional Autopilot Features for Sailing Vessels ...........7
Autotack ..................................................................... 7
WindTrim .................................................................. 7
UsingWind Trim......................................................... 7
2.4 Keypad Illumination .....................................................8
2.5 LED Status ...................................................................8
2.6 Important Safety Information ........................................9
2.7 Alarms .........................................................................9
Chapter 3: EMC and Servicing Guidelines ............................... 10
3.1 Important information .................................................10
3.2Installation..................................................................10
3.3 Check Before Going to Sea ..........................................11
3.4 Servicing and Safety ...................................................11
Chapter 4: Specification .......................................................... 12

ST80 Autopilot Keypad Operation Manual 3
Chapter1:Introduction
1.1 Introduction
TheAutopilotkeypad provides autopilotcontrolvia a simplenine-
key interface. There are buttons for engaging and disengaging the
pilot(autoandstandby), course adjustment (-1,+1,-10 and +10),
trackcontrol,response anddirectentry totheautopilot display’sofa
Masterviewdisplayhead (disp).
D1940-1
autopilot
track
+1
+10
-1
-10
resp
auto
standby
disp

4 ST80 Autopilot Keypad Operation Manual
Chapter2: Operation
2.1 Keypad Layout and Features
Theautopilotkeypad has beendesignedas a controlinterfacefor
Autohelmautopilot’s.The keypad consists ofninepush-button keys
togetherwithoperation statusLED’s. The basic functionof eachof
thesekeys isdescribed inthe followingillustration.
autopilot
track
+1
+10
-1
-10
resp
auto
standby
disp

ST80 Autopilot Keypad Operation Manual 5
• Whenthe systemis switchedon theautopilotisalwaysin
STANDBYmode.
• Thedisplayand lamp keyonly cycles pilotpageswhen thepilot
chapterisopen.
2.2 Basic Operating Principles and Hints
Auto and Standby
Autopilotoperationhas beensimplifiedto asetof push-buttonkeys,
allofwhich are confirmedbya beep orbeeps.
Engagingtheautopilot couldnotbe easier.Simplysteer yourvessel
ontotherequired heading, presstheAUTObuttonand release the
wheel/tiller. Whenyouwant toreturn tomanualsteeringsimply
pressSTANDBYand regaincontrol.
Caution: Hand steering is not possible when your vessel is under
autopilot control. The pilot MUST be disengaged by pressing
STANDBY.It is the skippers responsibility to ensure that all crew
members are aware of this procedure.
CourseChanges
Coursechangesunder autopilotcontrol are madeusing the–1, +1,
–10and+10 keys. Thesekeysallow youtomake changesin 1°or
10°incrementsto port (–)and starboard (+).
Track
Trackmodetells theautopilot to steerunder thesupervisionof a
radioor satellitenavigationsystem. Therefore,the followingbasic
guidelinesshouldbeobserved before track isengaged:
• Alwayssteeryour vesselto within0.1nmof thetrack.
• Makesurethat thereare nonavigationalhazards eitherside ofthe
intended track.
• Maintainanaccurate log.
• Make regular plots to verify the computed position provided by your
positiontransducer.
• Maintaina properlookoutat alltimes.

6 ST80 Autopilot Keypad Operation Manual
TrackAdvance/Acceptance
Ifyournavigation receiver istransmittingwaypoint number and
bearingtowaypoint, a waypointalarmwill sound wheneveranew
targetwaypoint isselected.Theautopilot maintainsthe current
headingandautomatic track controlissuspended. Check thenew
bearingtowaypoint, makesure that itis safetoturn, andthenreturn
toautomatictrack controlby simply pressingthetrackkey. Thenew
targetwaypointis acceptedand the autopilotsteers yourvesselonto
the new heading.
Youmayfind thatthetidal offsetisvery differentonthe newbearing.
Therefore,it isadvisableto checkthe crosstrackerror(XTE)after a
coupleofminutes. Ifthe cross trackerror increases,makea course
adjustment(e.g.,10°) inthe direction ofthe arrow.Thishelps to
speeduptrack control correctionfor the newtidalvector.
Response
Therearethree responselevels.
Level1isthe defaultand suitablefor mostsituations. Thissetting
provides the best compromise between course-keeping accuracy and
power consumption.
Level2ensures tightercourse-keepingat theexpenseof increased
powerconsumptionand wearandtear duetoincreased pilotactivity.
Itis advisabletouse theminimum responsenecessarytoachievethe
desired course keeping accuracy.
Onlargervessels,level3 canimproveslow speedsteeringwhere
naturalyawdamping of thevessel is reduced.
Note: Level 3 is not recommended for use at planing speeds, or in rough
seas if a rate gyro transducer is not fitted.

ST80 Autopilot Keypad Operation Manual 7
2.3 Additional Autopilot Features for Sailing
Vessels
Autotack
Whentheautopilot isincompass orwindvanemode, thefollowing
keycommandselects autotack mode.
D2428-1
disp track
resp
autopilot
-1 +1
-10 +10
standby auto
Press these keys together momentarily to
begin a tack turning to port.
Press these keys together momentarily to
begin a tack turning to starboard.
-1
-10
+1
+10
Thismodestarts atack routinesothat youcan tendtothe sheets.
Note: Your vessels rudder reference transducer must be accurately
aligned as the autotack feature mirrors standing helm. Any
offset will change the initial tack angle.
Wind Trim
Thisfeatureensures thatthe autopilotignoresshort termchanges in
winddirection, yettracks realwindshifts.
D2429-1
disp track
resp
autopilot
-1 +1
-10 +10
standby auto
Press these keys together momentarily to
select Wind Trim and maintain the current
apparent wind angle.
Press and hold these keys for 1 second
to return to the previous apparent wind
angle.
standby
auto
Using Wind Trim
Itis importanttoremember thatWind Trimpreventsoverreactionto
gustsor suddenwindshifts, andthat ittakesatleast1 minuteto
changetheheadingin response to apermanentchange to the
apparent wind angle.