Raymarine GPS Receiver navigation system User Guide

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.  
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ST80  
Autopilot  
Keypad  
Operation Manual  
resp  
disp  
track  
-1  
+1  
-10  
+10  
standby  
auto  
autopilot  
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1
ST80 Autopilot Keypad Operation Manual  
Package Contents  
1. Autopilot keypad  
2. Thumb nuts (2)  
3. Threaded fixing studs (2)  
4. White sun cover  
5. SeaTalk cable  
6. Installation template  
7. Operation manual  
8. Warranty card  
9. Operation cue card  
10. Keypad installation guide  
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2
ST80 Autopilot Keypad Operation Manual  
Contents  
Chapter 1: Introduction .............................................................. 3  
1.1Introduction ..................................................................3  
Chapter 2: Operation ................................................................. 4  
2.1 Keypad Layout and Features .........................................4  
2.2BasicOperatingPrinciplesandHints..............................5  
Auto and Standby ........................................................ 5  
Course Changes ........................................................... 5  
Track .......................................................................... 5  
Track Advance/Acceptance .................................. 6  
Response..................................................................... 6  
2.3AdditionalAutopilotFeaturesforSailingVessels ...........7  
Autotack ..................................................................... 7  
Wind Trim .................................................................. 7  
Using Wind Trim......................................................... 7  
2.4KeypadIllumination .....................................................8  
2.5LEDStatus ...................................................................8  
2.6ImportantSafetyInformation ........................................9  
2.7Alarms .........................................................................9  
Chapter 3: EMC and Servicing Guidelines ............................... 10  
3.1Importantinformation .................................................10  
3.2Installation..................................................................10  
3.3CheckBeforeGoingtoSea..........................................11  
3.4ServicingandSafety ...................................................11  
Chapter 4: Specification .......................................................... 12  
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3
ST80 Autopilot Keypad Operation Manual  
Chapter 1: Introduction  
1.1 Introduction  
The Autopilot keypad provides autopilot control via a simple nine-  
key interface. There are buttons for engaging and disengaging the  
pilot (auto and standby), course adjustment (-1, +1, -10 and +10),  
track control, response and direct entry to the autopilot display’s of a  
Masterview display head (disp).  
resp  
disp  
track  
-1  
+1  
-10  
+10  
standby  
auto  
autopilot  
D1940-1  
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4
ST80 Autopilot Keypad Operation Manual  
Chapter 2: Operation  
2.1 Keypad Layout and Features  
The autopilot keypad has been designed as a control interface for  
Autohelm autopilot’s. The keypad consists of nine push-button keys  
together with operation status LED’s. The basic function of each of  
these keys is described in the following illustration.  
resp  
disp  
track  
-1  
+1  
-10  
+10  
standby  
auto  
autopilot  
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5
ST80 Autopilot Keypad Operation Manual  
• When the system is switched on the autopilot is always in  
STANDBY mode.  
• The display and lamp key only cycles pilot pages when the pilot  
chapter is open.  
2.2 Basic Operating Principles and Hints  
Auto and Standby  
Autopilot operation has been simplified to a set of push-button keys,  
all of which are confirmed by a beep or beeps.  
Engaging the autopilot could not be easier. Simply steer your vessel  
onto the required heading, press the AUTO button and release the  
wheel/ tiller. When you want to return to manual steering simply  
press STANDBY and regain control.  
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.  
Course Changes  
Course changes under autopilot control are made using the –1, +1,  
–10 and +10 keys. These keys allow you to make changes in 1° or  
10° increments to port (–) and starboard (+).  
Track  
Track mode tells the autopilot to steer under the supervision of a  
radio or satellite navigation system. Therefore, the following basic  
guidelines should be observed before track is engaged:  
• Always steer your vessel to within 0.1nm of the track.  
• Make sure that there are no navigational hazards either side of the  
intended track.  
• Maintain an accurate log.  
• Make regular plots to verify the computed position provided by your  
position transducer.  
• Maintain a proper lookout at all times.  
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6
ST80 Autopilot Keypad Operation Manual  
Track Advance/Acceptance  
If your navigation receiver is transmitting waypoint number and  
bearing to waypoint, a waypoint alarm will sound whenever a new  
target waypoint is selected. The autopilot maintains the current  
heading and automatic track control is suspended. Check the new  
bearing to waypoint, make sure that it is safe to turn, and then return  
to automatic track control by simply pressing the track key. The new  
target waypoint is accepted and the autopilot steers your vessel onto  
the new heading.  
You may find that the tidal offset is very different on the new bearing.  
Therefore, it is advisable to check the cross track error (XTE) after a  
couple of minutes. If the cross track error increases, make a course  
adjustment (e.g., 10°) in the direction of the arrow. This helps to  
speed up track control correction for the new tidal vector.  
Response  
There are three response levels.  
Level 1 is the default and suitable for most situations. This setting  
provides the best compromise between course-keeping accuracy and  
power consumption.  
Level 2 ensures tighter course-keeping at the expense of increased  
power consumption and wear and tear due to increased pilot activity.  
It is advisable to use the minimum response necessary to achieve the  
desired course keeping accuracy.  
On larger vessels, level 3 can improve slow speed steering where  
natural yaw damping of the vessel 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.  
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7
ST80 Autopilot Keypad Operation Manual  
2.3 Additional Autopilot Features for Sailing  
Vessels  
Autotack  
When the autopilot is in compass or windvane mode, the following  
key command selects autotack mode.  
Press these keys together momentarily to  
-1  
begin a tack turning to port.  
resp  
track  
disp  
-10  
-1  
+1  
Press these keys together momentarily to  
begin a tack turning to starboard.  
-10  
+10  
+1  
+10  
standby  
auto  
autopilot  
D2428-1  
This mode starts a tack routine so that you can tend to the 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  
This feature ensures that the autopilot ignores short term changes in  
wind direction, yet tracks real windshifts.  
Press these keys together momentarily to  
standby  
select Wind Trim and maintain the current  
resp  
track  
disp  
apparent wind angle.  
auto  
-1  
+1  
Press and hold these keys for 1 second  
to return to the previous apparent wind  
angle.  
-10  
+10  
standby  
auto  
autopilot  
D2429-1  
Using Wind Trim  
It is important to remember that Wind Trim prevents overreaction to  
gusts or sudden wind shifts, and that it takes at least 1 minute to  
change the heading in response to a permanent change to the  
apparent wind angle.  
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8
ST80 Autopilot Keypad Operation Manual  
In gusty conditions, always sail a few degrees off of the wind and pay  
frequent attention to sail trim and helm balance, using the rudder  
angle display on a Masterview display head.  
Generally speaking, performance will be improved by reefing the  
headsail and mainsail a little early rather than too late.  
2.4 Keypad Illumination  
The keypad illumination can be adjusted as follows:  
Press for 1 second to enter illumination  
disp  
adjustment mode.  
resp  
track  
disp  
If the illumination is OFF, the illumination  
will now be set to level 3.  
-1  
+1  
When illumination adjustment is active,  
press this key momentarily to cycle the  
available levels: 1, 2, 3, OFF.  
-10  
+10  
standby  
auto  
autopilot  
D2432-1  
The keypad returns to normal operation after 8 seconds of keypad  
inactivity.  
2.5 LED Status  
The actions described in this chapter are confirmed on the display of  
a Masterview display head. However, if the Autopilot keypad is  
installed away from a display head, the functions can be identified by  
the permanent illumination or flashing LED’s as shown in the  
following illustration.  
Flashes when  
adjusting response.  
LED glows when track  
engaged.  
resp  
track  
disp  
Flashes if waypoint  
advance to port.  
Flashes if waypoint advance  
to starboard.  
-1  
+1  
Flashes during  
rudder gain  
adjustment.  
-10  
+10  
Autopilot status LED glows  
permanently in AUTO and  
MANUAL modes. Flashes in  
VANE and STANDBY modes.  
standby  
auto  
autopilot  
D2433-1  
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9
ST80 Autopilot Keypad Operation Manual  
2.6 Important Safety Information  
The following rules should ALWAYS be observed when passage  
making under autopilot control:  
Maintain a permanent watch and regularly check all around for  
other vessels and obstacles – no matter how clear the sea may  
appear to be, dangerous situations can develop in minutes.  
Maintain an accurate log of your vessels position by visual  
bearings or radio/satellite position fixes.  
Maintain a continuous plot of your position on a current chart.  
Make sure that the autopilot heading will steer you clear of  
obstacles. Always allow for tidal set – the autopilot cannot!  
Even when your autopilot is locked onto a given track using a  
radio/satellite navigation receiver, always maintain a log and  
regular position plot – navigational signals can produce  
significant errors in certain circumstances, errors which the  
autopilot cannot detect.  
Ensure that your crew is familiar with the procedures for  
engaging and disengaging the autopilot.  
When there is restricted sea room, make sure that a crew  
member is stationed close to the autopilot keypad.  
On power vessels, always maintain a permanent watch at the  
steering station when the autopilot is engaged.  
2.7 Alarms  
The keypad sounds audible alarms in response to the following alarm  
conditions:  
Alarm  
Response  
Waypoint advance  
Low battery  
Large XTE  
Two beeps for port one for starboard  
Continuous beep, beep  
Continuous beep, beep  
Continuous beep, beep  
Continuous beep, beep  
Continuous beep, beep  
Continuous beep, beep  
Continuous beep, beep  
Wind change  
No NMEA data  
NMEA data error  
Watch  
Off course  
Note: These alarms are normally displayed on a Masterview display head.  
Please refer to the Masterview handbook for details.  
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10  
ST80 Autopilot Keypad Operation Manual  
Chapter 3: EMC and Servicing Guidelines  
3.1 Important information  
All Autohelm equipment and accessories are designed to the best  
industry standards for use in the leisure marine environment.  
Their design and manufacture conforms to the appropriate  
Electromagnetic Compatibility (EMC) standards, but good  
installation is required to ensure that performance is not  
compromised. Although every effort has been taken to ensure that  
they will perform under all conditions, it is important to understand  
what factors could affect the operation of the product.  
3.2 Installation  
To avoid the risk of operating problems, all Autohelm equipment and  
cables connected to it should be:  
• At least 1m (3 feet) from any equipment transmitting or cables  
carrying radio signals, e.g., VHF radios, cables and antennas. In the  
case of SSB radios, the distance should be increased to 2m (7ft).  
• More than 2m (6ft) from the path of a radar beam. A radar beam can  
normally be assumed to spread 20 degrees above and below the  
radiating element.  
• The equipment should be supplied from a different battery than the  
one used for engine start. Voltage drops below 10V in the power  
supply to our products can cause the equipment to reset. This will not  
damage the equipment, but will cause the loss of some information  
and can change the operating mode.  
• Genuine Autohelm cables should be used at all times. Cutting and  
rejoining these cables can compromise EMC performance and so  
should be avoided unless doing so is detailed in the installation  
manual.  
• If a suppression ferrite is attached to a cable, this ferrite should not be  
removed. If the ferrite has to be removed during installation it must  
be reassembled in the same position.  
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11  
ST80 Autopilot Keypad Operation Manual  
3.3 Check Before Going to Sea  
• Always check the installation before going to sea to make sure that it  
is not affected by radio transmissions, engine starting etc..  
• In some installations, it may not be possible to prevent the equipment  
from being affected by external influences. In general this will not  
damage the equipment but can lead to it resetting, or momentarily  
may result in faulty operation.  
3.4 Servicing and Safety  
• Autohelm equipment should be serviced only by authorised  
Autohelm service engineers. They will ensure that service  
procedures and replacement parts used will not affect performance.  
There are no user serviceable parts in any Autohelm product.  
• Some products generate high voltages, and so never handle the  
cables/connectors when power is being supplied to the equipment.  
• Always report any EMC related problem to your nearest Autohelm  
dealer. We will use any such information to improve our quality  
standards.  
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12  
ST80 Autopilot Keypad Operation Manual  
Chapter 4: Specification  
Dimensions:  
110 x 68 x 17mm (4.33 x 2.67 x  
0.66in)  
Power supply:  
10 to 16V DC  
Current consumption:  
Less than 240mA with  
illumination fully on, and less than  
90mA at the courtesy level.  
Operating temperature:  
Buzzer:  
-10 to 70°C (14 to 158°F)  
Single tone beep  
3 levels  
Illumination:  
Audible alarms:  
Drive stopped  
Off course  
Waypoint advance  
Low battery  
Large cross track error (XTE)  
Wind change  
No NMEA data  
NMEA data error  
Watch  
81072-1  
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Raymarine Ltd.  
Anchorage Park, Portsmouth,  
P03 5TD, England.  
Telephone: (44) (0) 2392 693611  
Fax: (44) (0) 2392 694642  
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