Si-tex SP-80 User's Manual

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SI-TEX MARINE ELECTRONICS INC

#800 - 11001 Roosevelt Blvd

St. Petersburg, Florida 33716

Phone (727) 576-5995

INSTALLATION and OPERATION MANUAL

SI-TEX SP-70 AND SP-80 AUTOPILOTS

SI-TEX SP-80 AUTOPILOT

SI-TEX SP-70 AUTOPILOT

P/N 29010049 V1.2 2

WARNING

This Autopilot will automatically steer your vessel, however, it is only an aid to

navigation. Its performance can be affected by many factors including

equipment failure, environmental conditions and improper handling or use.

This system does not reduce your responsibility for the control of the vessel

when underway. You must always be in a position to monitor the course,

supervise the Autopilot, and resume manual control if the need to do so

arises.

Whenever underway, your vessel must be under the control of

a qualified and alert person.

P/N 29010049 V1.2 3

SI-TEX SP-70 and SP-80 Autopilot Manual

Owner’s Manual for Installation and Operation

Part Number: 29010049

SI-TEX MARINE ELECTRONICS INC #800 – 11001 Roosevelt Blvd St. Petersburg, FL 33716 Telephone: (727) 576-5995

P/N 29010049 V1.2 4

TABLE OF CONTENTS

PRODUCT DESCRIPTION

SP-70/SP-80 System layout 8

SI-TEX SP-70/SP-80 PARTS LIST

INSTALLATION INSTRUCTIONS

I-TEX MARINE REVERSING PUMP 13

Tools And Material s R equi red T o I nstall Pum p 14 Hydraulic Connections For Two-Line Steering Systems 17 Hydraulic Connections For Three-Line Steering Systems 18 Technical Specifications 19 Specifications Common To B oth Pum ps 19

INSTALLATION INSTRUCTIONS

Planning 21 Tools 22 Clip Installation 23 Power Cable Installation 24 Fluxgate Compass Installation 24 Rotary Rudder Feedback Installation 25

Attaching the Rudder Feedback Linkage. 27 Outboard Feedback Installation 31 Wiring the Processor 35 Mounting the Processor 41

Setting Slow Speed Rudder Response 60 Turns and Changing Course 61 Setting Fast Speed Rudder & Counter- Rudder Response. 63 Fast Speed Turns and Course Changes 64 Adjusting Your Digital Rudder Angle Indicator (RAI) 66 Using Your Navigation Interface 67 The Navigation Int erfa ce 68 NMEA 0183 68

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ADJUSTMENT COMMANDS

USER CODES FOR THE SI-TE X SP-70 & SP-80

PROBLEMS WITHOUT AN ERROR CODE

APPENDIX A

Connections to 4 and 5 Wire Motors 78 APPENDIX A 79

APPENDIX B

Connections to Solenoid Valves 80

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APPENDIX C

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Connecting a Second Location or Second Station Options 81 Second Location Kit 81 Second Station Kit 82

APPENDIX D

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Connecting a Rudder Angle Indicator 84

APPENDIX E

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Connecting the NMEA 0183 Heading Output 85

CERTIFICATE OF LIMITED WARRANTY

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PRODUCT DESCRIPTION

SI-TEX SP-70 or SP-80 Autopilots are reliable, accurate and easy to use aids to navigation. They feature four operating modes, watertight design, and built-in navigation interface.

The 4 operating modes are:

• STANDBY MODE allows manual steering while displaying compass information.

• POWER STEERING MODE features push button steering control, an d displays compass or rudder information.

• PILOT MODE steers to a constant heading.

• NAV MODE steers along a course line when the SP-70 or SP-80 is connected to an appropriate navigation device.

In both PILOT and NAV Mode, pressing the Red or Green Key allows use of the Dodge/Course-change featur e.

To steer a constant heading, the SP-70 or SP-80 compares compass heading information with the course heading that is entered into memory. If the vessel is not on the correct heading, the Autopilot calculates the rudder position that will bring the vessel onto the correct heading. The Autopilot uses a drive unit to move the rudder. Information from the Rotary Feedback or Outboard Feedback is used to calculate new rudder positions and to verify that the steering system has followed the Autopilot commands.

The SP-70/SP-80 contains a program called Ghost Rudder. Should the Rudder Feedback fail, the Autopilot will use its memory of the rudder movement to calculate new rudder positions. The Ghost Rudder program will not allow the Autopilot to steer as wel l as it can with the Rudder Feedback. It will allow the Autopilot to be used until repairs can be made to the Rudder Feedback.

The design of the SP-70/SP-80 includes many circuit protection devices such as; reverse power connection protection, output circuitry overload protection, protection against overheating, protection against computer failure or program error.

SPECIFICATIONS

Voltage: 10VDC - 40 VDC Steering Outputs: 20 Ampe res M axim um

Sizes L X W X H

SP-70 Control: 2.75 x 5.13 x 1.0 in.

(7.0 x 13.3 x 2.5 cm.)

SP-80 Control: 6.0 x 3.1 x 1.0 in

(15.4 x 7.9 x 2.5 cm)

Processor: 6.3 X 15 X 2.7 in.

(16.0 x 38.1 x 6.9 cm.)

Compass: 5.6 x 4.2 x 3.4 in.

(14.2 x 10.7 x 7.6 cm)

Pump: 4.8 x 7.5 x 4 in.

(12.2 x 19.0 x 10.2

cm.)

When steering along a course line, both Autopilots use information from t he compass to monitor the heading. They also use position information received in NMEA 0183 format from LORAN, GPS, or plotter. Using both of these inputs, the SP-70/SP-80 calculates a course to steer and keeps the vessel on the course line.

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SP-70/SP-80 System layout

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SI-TEX SP-70/SP-80 PARTS LIST

Parts are not drawn to any scale.

FOR SP-70 AUTOPILOT PACKAGES

Si-Tex Processor: Part Number 30080003. Used on both SP-70 and SP-80 Autopilot packages.

SP-70 Control Unit. Part Number 20080009. This part includes a curly cord wired to the Control Unit.

SP-70 Control Unit Clip and Spacer. Part Number 65610010.

FOR SP-80 AUTOPILOT PACKAGES

SP-80 Control Unit and Mounting Bracket. Part Number 20080011. This part includes a 25 foot (7.7 meter) cable wired to the Control Unit.

P/N 29010049 V1.2 9

SP-70/SP-80 Fluxgate Compass. Part Number

20320003. This part includes 40 feet (12.2 m) of cable wired to the compass.

In this group, one part

Rotary Rudder Feedback: Part Number 20330008. This part includes 50 feet (15.2 m) of cable wired to the Rudder Feedback. This part wi ll always come with:

Rotary Rudder Feedback Linkage Kit. Part Number 20330007

OR the other part will be included:

Outboard Feedback: Part Number 20330002. This part includes 30 feet (9.1 m) of cable wired to the Rudder Feedback.

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Also included but not drawn:

• Power Cable: Seven and a half feet (2.3 m) of cable provided for connection of Processor and breaker.

• Accessory Kit: Contains a small screwdriver, extra terminal sockets and gland.

• Control Unit Interconnection Cable (SP-70 systems only): 10 feet (3.05 m) of cable with a

receptacle and cap on one end. Labelled as cable one.

• Si-Tex SP-70 and SP-80 Auto pilot Ma nual. Par t Number 29010 049.

Adjustable Reversing Pump. Part Number 20810016 (12VDC/18CI), 20810031 (24VDC/18CI), 20810018 (12V/30CI) and 20810035 (24V/30CI). 18CI pumps are for installations where the steering ram size is from 7 in installations where the steering ra m size is from 15 in

(490 cm3).

30 in

(115 cm3) up to 18 in3 (295 cm3). 30CI pumps are for

(245cm3) up to

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INSTALLATION INSTRUCTIONS

SI-TEX MARINE REVERSING PUMP

Part Nos. 20810016, 20810031, 20810018 & 20810035

GENERAL:

The reversing pump consists of a hydraulic pump and a motor. The pump is a pist on type, driven by a reversing permanent magnet motor. The pu mp is designed in such a way that it will keep oil from returning through the pump when is not running or correcting. There is also a bleed-to tank to allow the use of unbalanced cylinders. The pump is co mp atible with all h ydrau lic st eeri ng s yst ems including pressurized steering systems such as Hynautic.

SPILL VALV AD JU STMENT

To adjust flow rate, loosen pump housing screws and turn pump housing. C lockwise w ill decrease flow rate, anti-clockwise to increase flow rate.

Part Nos. 20810016(12V) & 20810031(24V) 18CI Pumps The pumps above can be ordered with a 12VDC or 24VDC motor and have an adjustable flow rate that will deliver from 36 in suitable for rams with displacements ranging from 7 in

Part No. 20810018(12V) and 20810035(24V) 30CI Pumps The pumps above can be ordered with a 12VDC or 24VDC motor and have an adjustab le flow rate that will deliver from 61 in suitable for rams with displacements ranging from 15 in

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to 73 in3 (600 cm3 – 1200 cm3) per minute of oil at 500 PSI (3,440 kPa) (34 Bar). It is

to 122 in3 (1000 cm3 – 2000 cm3) per minute of oil at 500 PSI (3,440 kPa) (34 Bar). It is

(115 cm3) to 18 in3 (295 cm3)) displacement.

(246 cm3) to 30 in3 (495 cm3) displacement.

***** IMPORTANT *****

If the system you purchased includes a reversing motor pumpset, it is important that you apply and install this unit correctly. To ensure that you get the most from your purchase, read this installation and instruction manual carefully. By following the step-by-step procedure and using only basic tools and materials, you will find the installation easy to do.

Caution

This Pump is not waterproof and is therefore not warranted against water damage.

This Pump is not warranted against damage caused by improper installation.

If you are installing this pump on a Capilano or Syten ste ering system, you probably hav e a 3-line steering system. Read the 3-line steering installation instructions carefully.

Tools And Materials Required To Install Pump

1) Basic Tool Kit

2) Pipe Cutter

3) Funnel with Filter (a coffee filter will do)

4) 3/8" Electrical Drill

5) 2 gallon (9 L.) bucket (to catch excess

oil).

6) Rags or Paper Towels

7) Pipe Fittings (check with steering

gear manufacturer for type & size)

8) Tubing (check with steering gear

manufacturer for type and size)

9) Hydraulic Oil (check with steering

gear manufacturer for type)

10) Teflon based thread sealer (such as LOCTITE™ P.S.T.)

11) Miscellaneous Hardware (for mounting pump and securing lines)

1. Consult with your steering system manufacturer to get detailed

information about factory authorized materials. Failure to do s o could void your warranty.

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Planning

Installation of the pump consists of:

• Finding a mounting location for the pump

The pump can be mounted in an y orienta tion except with Port C facing downward. If Port C is facing downward then air will not be able to rise out of the pump and the pump will not have a supply of oil.

• Partially draining the steering system

• Mounting and connecting the pump to

the existing steering lines

• Filling and bleeding the steering system.

A suitable mounting location for the pump MUST:

• Be dry

• Be lower than at least one of the hel m

pumps in the steering sy stem

• Provide a solid mounti ng b ase

• Be at least 4 feet (3.1 m) from the

vessel’s compass.

A mounting location for the pump SHOULD:

• Provide easy access to the pump

• Provide an easy connection point to

the steering system

• Minimize the length of the pump hoses

• Minimize the length of the wires to the

motor.

There are two ways to connect the pump to the steering system. The first is to leave the system completely filled and be careful not to spill hydraulic fluid. The second is to drain the system of fluid completely before cutting or opening any lines.

If you follow the first method, remembe r that when you disconnect or cut the steering lines, there will be a constant slow discharge of oil due to gravity draining the system. Have a container ready to catch all excess oil. Do not reuse any oil reclaimed from your system.

Draining your System

If you wish to follow the second method and drain the system, use the following simple procedure.

1. Have a large container, about 2 gallons, ready.

2. Disconnect the delivery lines at a low point, usually where the lines connect to the steering cylinder.

3. Turn the wheel of the highest helm pump in both directions until no more fluid comes out of the lines.

4. Repeat the previous step on each lower helm pump in turn.

Types of Steering Systems

A typical mounting location would be in the engine compartment or the steering console.

You have a three-line system if the helm pump is a Capilano Model 250 or 275 (Made by Teleflex), or if there is a Uniflow valve mounted close to the steering cylinder.

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There are two general types of steering systems, two-line systems, and three-line systems. The pump connection to the steering system is different for each type. Separate instructions are supplied for both types of steering system s.

You have a two-line system if you do not have the above components in your system.

CAUTION

CLEANLINESS must be maintained while making hydraulic connections. Contamination introduced into the steering system fluid can cause steering components to malfunction, possibly resulting in a loss of steering.

Before beginning to connect the pump to the steering system, review the following installation hints:

• Cap or cover the ends of hoses with a clean rag before pushing them between bulkheads.

• Wipe copper filings off freshly cut and reamed copper tube. Do not blow the filings off.

• Teflon based thread sealer, such as 'LOCTITE™ P.S.T.' must be used on all male pipe threads. Do not place thread sealer on the first two threads. Do not use a tape-type thread sealer. These can shred and enter the steering system fluid.

Do not place thread sealer on female pipe threads.

• When tightening fittings into the pump lockvalve, hold the lockvalve, not the motor. That way, the lockvalve will not twist out of alignment with the rest of the pump.

• Connection of the pump lines is most easily made at existing breaks in the steering system lines. For example: valves, t-joints and other fittings.

CAUTION

Opening your hydraulic steering system will introduce air into your steering system. This air will be expelled if the steering system is bled properly. After you refill your system and during the "Set-up Routine", your autopilot can be used for bleeding the air. Ensure that you follow the Compensating Line installation instructi ons very c arefull y as al l air is expelled through this line when bleeding your system. If the Compensating Line does not prime properly and allow fluid to get to the autopilot pump, the pump will not perform properly. The Compensating Line does not have to be a highpressure hose. In fact, even a clear hose can be used allowing for easy v isu al confirma tion of prope r Compensating Line operation.

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Hydraulic Connections For Two-Line Steering Systems

A simple schematic of the pump installation is shown below.

2 Line Steering System Installation

Delivery Lines:

Ports A and B in the diagram above are the input/output ports of the pump and must be

connected to the steering lines coming from the steering cylinder. It does not matter which pump port is connected to which steering line.

Compensating Line:

In the above diagram Port C is the compensating or bleed line, and must be connected to the steering system's reservoir. This connection can be mad e at: a hel m pump; remote reservoir (if there is one); the compensating line connecting two helm pumps; or the compensating line connecting a helm pump to the remote reservoir. If the c onnection is being made directly to the helm pump, ensure that the bleed line is connected to the LOWER helm bleed port.

The compensating line MUST have a gradual rise from the pump, to the connection, to the steering system. This allows air to rise out of the pump , ensuring a constant supply of oil to the pump.

INSTALLATION OF SHUT-OFF VALVES RECOMMENDED

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Hydraulic Connections For Three-Line Steering Systems

A simple schematic of the pump installation is shown below.

3 Line Steering System Installation

Delivery Lines:

In the above diagram, Ports A and B are the input/output ports of the pump and must be connected to the steering lines between the steering cylinder and the Uniflow valve. The simplest method of doing this is to install a tee in each of the cylinder ports of the Uniflo w valve itself and connect to these tees. It does not matter which pump port is connected to which steering line.

Compensating Line:

Port C is the compensating or bleed line and must be connected to the steering systems’

reservoir. This connection can be made at a helm pump; a remote reservoir (if there is one); the return line connecting two helm pumps; or the return line between a pump and the Uniflow valve. If the connection is being made directl y to the helm pump, ensure that the bleed line is connected to the LOWEST bleed port of the pump.

The connection MUST be at least six feet (1.83 m) from the Uniflow valve as shown abo ve. If the connection is too close to the Uniflow valve, the manual steering system may not work well.

The compensating line MUST have a gradual rise from the pump, to the connection, to the steering system. This allows air to rise out of the pump , ensuring a constant supply of oil to the pump.

INSTALLATION OF SHUT-OFF VALVES RECOMMENDED

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Re-Fill And Bleed

After you have installed your Pump, ref ill and ble ed your manual st eering system according to the manufacturer's directions. Any air, which is in the pump, will be expelled during the Set-up Routine .

Technical Specifications

Part Number: 20810016 20810031 20810018 20810035 Model Number: 18CI 18CI 30CI 30CI Operating Voltage: 12VDC 24VDC 12VDC 24VDC Max Displacement @ 200PSI: 73 in

73 in

122 in

Current @ 200 PSI: 4.5 Amps 3.0 Amps 6.0 Amps 3.0 Amps Max Pressure: 800 PSI 800 PSI 500PSI 500PSI

Specifications Common To Both Pumps

Port Sizes: - 3/8 inch compression fittings supplied Displacement (18CI): - Adjustable, from 2 6in Displacement (30CI): - Adjustable, from 6 1in

(600cm3) to 73in3 (1200cm3)

(1000cm3) to 122in3 (2000cm3) Min Stall Pressure: - 1200 PSI (84.0 Bar) (8,268 kPa) Oil Type: - Any approved hydraulic steering fluid Operating Temperature: - 0 to 50 Degrees Celsius (32 to 122 Fahren heit) Lockvalve: - Yes Lockvalve Leakage: - Negligible Unbalanced Cylinder: - Yes, up to 3/4 (1.9cm) diameter rod Weight: - 5.0 lbs (2.27 kg) including wire Size: - 10 inches x 3.75 inches x 4.75 inches Size (metric): - 254mm x 95mm x 121mm Shaft Seal: - 100 PS I (6.8 9 Bar) (6 89 kPa) m inimum

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Connection between SP-70 Control Unit and Receptacle on Cable Number 1

SP-80 Control Unit and cable going to Si-Tex Processor

P/N 29010049 V1.2 20

INSTALLATION INSTRUCTIONS

SP-70 and SP-80 AUTOPILOTS

Planning

Caution

Using ordinary electric tools near water is very dangerous. To minimize the dangers of electric shock and personal injury, we recommend using cordless rechargeable tools or hand tools.

If you are going to use a sealant when flush mounting the SP-80 Control Head, be careful to not cover the small square hole in the middle of the bottom side. This hole must vent to atmosphere.

Do not mount the Processor near heat sources, such as heat radiators, or over engines. If you can, moun t the Processo r so that the cooling fins are vertical.

Processor Location

Allow at least a foot or 30 cm of clearance on either end of the Processor in the space where it is to be located.

In choosing a location for your SI-TEX SP-70/SP-80, remember that the Control Unit Interconnection Cable or Number 1 Cable, and the cable from the Compass to the Processor should not be cut or lengthened. Excess cable may be loosely co iled behind a panel.

Number 1 Cable from the SP-70 Control Unit Receptacle to the Processor is 10 feet long (3.05 metres). Number 1 cable from the SP80 Control Unit to Processor is 25 feet long (7.7 metres).

The cable from the Compass to the Processor is 40 feet long (12.2 metres).

Power Connection

There is a 7.5 foot (2.3 metre) power cab le included with your SI-TEX SP-70/SP-80. We recommend that you do not lengthen this cable.

If you must extend the cable:

• Use the smallest extension length possible.

• Use no less than 10 A.W.G. (6mm conductor. Splice and solder the joints.

• The extension must be less than 10 feet (3 metres).

• Make the joints watertight by using he atshrink tubing and silicon, or some other watertight covering.

)

You will want to have the Control unit near the steering station you use the most. On SP70’s try to position the Receptacle so that the curly cord will also reach other convenient locations such as the place that you use when docking your vessel.

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Grounding

Compass Location

The Power Cable also contains a groundi ng wire. Connecting this wire to a prop er ground (*see below) may reduce static on radios and improve LORAN reception.

Many different grounding connections could be used:

1. If you have a small vessel, the negative battery post can be used.

2. If you have several electronic instruments, each could be individually attached to the battery post. Do not connect one ins trument to another instrument and then to the post.

3. If you have a ground plane for a radio on your boat, connect the ground wire to that ground plane.

*A proper ground connection point must be at the same voltage potential as battery negative. Any voltage difference between battery negative and the ground point may indicate a problem and the ground wire should not be used. Ensure that connec tion wires are as short as possible and that connections are clean.

When choosing a location for the Compass, try to locate it as close as possible to the most stable spot on your boat. Usually this spot will be close to the water line level, in the middle of the boat and two -thirds to wards the stern from the bow.

Do not install your Compass near wires or devices carrying large electric currents such as battery chargers, electric pumps, motors or televisions.

Do not mount your Compass near any iron or steel objects.

Tools

You will need the following tools to install your SI-TEX Autopilot:

SCREWDRIVER: One Phillips and one medium slot screwdriver

WIRE CUTTERS: A pair of ordinary wire cutters suitable for general work around your house.

DRILL and a selection of DRILL BITS

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SMALL ADJUSTABLE WRENCH If you purchased a SP-70 or SP-80 with a

Rotary Rudder Feedback you may need one stainless steel band clamp which is more than large enough to fit around your rudder post.

You may also wish to have a supply of tie wraps for securing cable lengths and tools specific to your own boat.

SP-70 Receptacle Installation

The Receptacle is attached to the Number 1 cable. The diagram to the right shows the Receptacle mounted in a panel.

Mount the receptacle near your normal steering position. The curly cord on the Control Unit lets you move about 5 feet away from the Receptacle.

A stainless steel ring is placed between the bolt heads and the receptacle flange. Do not attempt to seal the receptacle by overtightening the bolts as the ring will deform the receptacle and interfere with plug insertion. A proper caulking compound or sealant should be used instead. The th ree bolts should onl y be tightened enou gh to compress the lock-washers, no more. As the plug has a tight seal, and insertion into the receptacle may be stiff, a lubricant has been included in your package.

Cable 1 Receptacle Installation

Hole sizes:

Hole for receptacle: 0.825 inches or 21 mm in diameter. Use the barrel of the Receptacle to mark holes for the f lange. Holes in the flange are for a number 6 (3mm) screw. You may wish to vary this size depending

upon the panel material.

Clip Installation

The Clip is used for mounting the Control Unit. The Clip is mounted with two nu mber 10 (5mm) screws or bolts.

The usual mounting location is on the dashbo ard within easy reach when you are steering your vessel.

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Power Cable Installation

The Power Cable is labelled with a "5". Connect the Power Cable to a breaker capable of supplying twenty Amperes.

CAUTION

Keep the breaker turned off or do not connect the cable to the breaker.

Use the white wire for battery positive from the breaker. Use the black wire for battery negative. The green wire is a grounding wire.

Fluxgate Compass Installation

Fluxgate Compass

The fluxgate compass must be correctly positioned or it will not work.

Extending the cable is not recommended. If you must extend it, see page 23 for guidelines on proper extension techniques.

Route the supplied Cable to the Processor location.

To correctly position the Fluxgate Compass, mount it so that the surface with the cable gland is up. On the top surface there is an arrow labelled "bow". The arrow must point in the same direction as the bow of your bo at . In cases where the compass is mounted on a side wall, the bow line arrow may be ± 90 degrees out of alignment. Remove the four top housing screws and rotate the housing ± 90 degrees. Warning: This unit comes

from the factory watertight. Be careful with seals and “O” rings if you remove the housing.

Initially, mount your Fluxgate Compass using strong adhesive tape or some other temporary, non-marking fastener. Coil any excess cable at the Compass locat ion rather than at the Processor. It may be necessary to relocate your compass after you have done the "Set-up Procedure".

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Rotary Rudder Feedback Installation

If you have purchased a SP-70 or SP-80 with an Outboard Feedback, please see the instruction s

titled, "Outboard Feedback".

Select the following parts from your SP-70 or SP-80 package:

RUDDER FEEDBACK

LINKAGE

BRASS BALL JOINT

(INCLUDED WITH LINKAGE)

You may also need:

• One stainless steel band clamp to hold the Rudder Arm to the rudder post.

• Four screws: #10 size (5 mm), suitable length.

Install the Rudder Feedback Assembly in the stern of the vessel, close to the rudder post. Place the Rudder Feedback so that it will be protected from objects which may shift posi tion when your boat is moving.

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Mounting the Rudder Feedback

Rudder Feedback correctly installed to rudder post

In the diagram above notice that:

• the Rudder Feedback Arm is above the

cable entry gland;

• the Linkage sockets are on the top of the

ball joints. Do not hang the Linkage from

the ball joints.

Mount the Rudder Feedback so that the Rudder Feedback Arm and the Rudder Arm:

• are at the same he ight and

• separated by less than 24 in. (60.9 cm)

center to center, and

• each makes an angle of 90 degrees with

the Linkage.

To correctly align the Rudder Feedback and the Rudder Arm, you may need to make a mounting base for the Rudder Feedback. Such a base must be firm. It should not flex when the vessel is moving.

Use the Rudder Feedback as a template to drill holes in the mounting surface. If you must drill new holes in the flange at the back of the Rudder Feedback, drill the Rudder Feedback flange first, and then use it as a template to drill holes in the surface.

Mount the Rudder Feedback using # 10 (5 mm) screws or bolts of suitable length.

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To Assemble the Rudder Feedback Arm

Loosen the adjustment block that keeps the two pieces of the Rudder Fe edback Linkage from sliding.

Measure the approximate diameter of your rudder post in inches.

The Rudder Arm has several holes drilled through it. The holes are marked by numbers on the top surface of the arm.

Select the hole on the Rudder Arm marked by a number equal to the diameter of your rudder post measured in inches. (1 cm =

0.394 in.)

Bolt the Brass Ball Joint onto the Rudder Arm using the selected hole. The b all of the Brass Ball Joint must be on the same side of the Rudder Arm as the numbers. Tighten th e nut and lock washer securely.

Attach the Rudder Post Arm to the rudder post using a stainless steel band cl amp. The Brass Ball Joint must be on top. The Rudder Post Arm must be at the same height as the Rudder Follower. The Rudder Post Arm must point straight ahead when the rudder is in the straight ahead steering position.

Attaching the Rudder Feedback Linkage.

Move the rudder so it is in the straight ahead position.

Snap the Rudder Feedback Linka ge onto the two Brass Balls. Make sure to close the small release clamps on each Plastic Socket.

With the Rudder Feedback Arm directly above the cable gland and the Rudder Arm pointing straight ahead, tighten the adjusting block.

Caution

Carefully watch the Linkage while you mov e the rudder through its full range of motion. The Rudder Feedback and the Rudder Feedback Linkage should move easily without binding. The moving parts must not contact any other objects. If there are any problems, fix them now.

Run the Rudder Feedback Cable from the Rudder Feedback to the space where the Processor will be located. Place the Ca ble so that it is protected from abrasion, stretching and cutting.

Turn to the section titled: "Wiring the Processor".

Move the Rudder Feedback Arm so that the Arm is directly above the point where the cable enters the Rudder Feedback.

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Flush Mounting the SP-80 Control Head

Cut-out And Radius Dimensions for the SP-80

NOT TO SCALE

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Outboard Feedback Installation

If you have a Rotary Rudder Feedback, see the section titled, "Rotary Rudder Feedback".

Introduction:

The Outboard Feedback sends information about the rudder or propeller position to the SP-70 or SP-80.

The Outboard Feedback can be attached to the hydraulic steering cylinder by using a stainless steel band clamp. A stainless steel bracket attaches one end of the Outboard Feedback to the steering cylinder rod.

The Outboard Feedback is p rovided with 30 feet (9.1 metres) of cable.

The Outboard Feedback can be used with hydraulic cylinders from 1.25 to 2.25 inches. (31.8 to 57.1 mm) in diameter. The cylinder stroke cannot exceed 10.5 inches (266 mm).

Outboard Feedback

Caution

The Outboard Feedback will be damaged if it is extended mo re th a n 10 .5 inches. This damag e will not be covered by warranty.

If necessary, the extended le ngth of the steering cylinder can be li mited using corrosion-resistant spacers as shown on page 36.

P/N 29010049 V1.2 31

Mounting Hardware

Mount the Outboard Feedback so that it will not be damage d when the m otor is tilted for tr ailering .

Installation

The Outboard Feedback may be mounted with the sliding rod facing either left or right.

Before you install the Feedback, move the steering gear through its full range of motion from one side to the other. Measure the change in length, of the hydraulic steering cylinder rod. If the rod extends or retracts more than 10 in. (254 mm), make spacers to limit the motion of the steering system as shown on page 35.

Turn the motor so that it is centered between the left and right limits of travel .

Use a tape measure or ruler to position the Outboard Feedback rod so that it projects

5.25 in. (133 mm) from the body of the

Outboard Feedback.

stainless steel band clamp. The clamp should be positioned as close as possible to t he tu be end where the cable exits.

Remove the nut from the end of the rod on the hydraulic cylinder. Place the stainless steel bracket over the threaded end of the rod and replace the nut. Do not completely tighten at this time.

Adjust the position of the Out board Feedb ack so that the end of the sliding rod is flush with the Stainless Bracket. Screw the nut onto the threaded rod at the end of the Outboard Feedback.

Loosely clamp the Outboard Feedback to the tube of the hydraulic cylinder using both pieces of the two piece mount and the

P/N 29010049 V1.2 32

The Outboard Feedback should now be at half its full extension and attached to the outboard motor which is at the center position.

Adjust the position of the Outbo ard Feedb ack so that as nearly as possible it is parallel wit h the hydraulic cylinder both horizontally and vertically. Tighten the nuts and the stainless steel band clamp securely.

Run the cable forward to the Processor location. Choose a route for the cable so that the minimum bend radius in the cable is at least 4.2 in. (10.7 cm). This is especially important in the motor well and other areas where vibration is present.

Complete the autopilot installation and perform the Set-up Routine as described.

Maintenance

Minimum Bend Radius

Keep the sliding rod clean. Wipe it occasionally so that dirt cannot enter the Linear Feedback. Use a clean, soft rag.

After trailering your boat, it is very important to clean the sliding rod.

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Outboard Feedback Mounting to Front Moun t Cylinder

P/N 29010049 V1.2 34

Wiring the Processor

Place the Processor in front of you with the lettering right side up. Remove the four Phillips screws from each end. Remove the end pieces of the Processor enclosure.

Looking into the open ends of the Processor you will see several green terminal strips. These terminal strips are mounted into sockets. You can remove the terminal strips from the processor by gently pulling them away from the end of the Processor.

The terminal strips are labelled with numbers corresponding to the wiring diagrams on the following pages.

P/N 29010049 V1.2 35

BLA CK OR B ROWN

WHI TE OR ORA NGE

Right-hand side. Cable 1, Control Unit

Note: There is an extra yellow wire in the cable that is not used.

Pull all of the terminal strips from the right-hand end of the Processor. Note that there is an empty socket which does not have a terminal strip. When you replace t he

terminal strips, do not accidentally place one into the empty socket. Pass the wires numbered "1", "2" and "3" through the watertight glan ds on the right end cap as

shown in the diagrams labelled:

• Right-Hand Side. Cable 1, Controller

• Right-Hand Side. Cable 2, Compass

• Right-Hand Side. Cable 3, Rudder Feedback

Use the same diagrams to wire the individual wires to the terminal strips. Insert the bared end of the wire into the terminal strip and faste n it th ere by t ight eni ng the scre w on

the terminal strip. Start from one end of the terminal strip and work to the other in sequence. Check your work.

P/N 29010049 V1.2 36

Right-hand side. Cable 2: Compass.

Note: Yellow wire on terminal #2 may be substituted with a brown wire.

Connections for Non SP-70/80 Fluxgate Compasses

Be careful:

The entire stripped end of the wire must be completely inside the terminal strip. Stripped

sections of wire must not be able to touch each other.

Every wire must be connected to the correct terminal.

(12 POS)

SP-70/80

Fluxgate 1 Shield Ground Gnd 2 Yellow Cosine Cosine * 3White Ref Ref 4 Blue Sine Sine * 5 Black Drive P2 N/C 6 Red Drive P1 N/C 7 Green +12V +12V

* If the reading is r evers ed, swap t hese two wire s.

P/N 29010049 V1.2 37

SP-70/80 Function

Non-SP-70/80

Connections

Right-hand side. Cable 3, Rudder Feed back

When you have completed the right-hand wiring, remove the terminal strips from the left hand end piece.

The optional navigation input may be connected at this time. Parts for this are in

your Accessory Bag. We do not supply the cable for this connection. This input is diagrammed on the next page.

The gland for this input must be mounted on the end cap. To locate the hole for the gland, look on the inside of the end cap. You will see several places where the plastic has been formed so that a hole may be easily drilled. Drill the hole using a 9/32 (7 mm) drill.

Place the gland from the accessory kit in the hole. Fasten it with the supplied plastic nut and tighten securely.

Pass the wires numbered "4" and "5" through the glands in the left hand end cap as shown in the diagrams labelled," Cable 4, Pump Motor", and " Cable 5, Power". Using the same diagrams, wire the left hand terminal strips. These drawings do not show the gl and for the optional navigation input.

P/N 29010049 V1.2 38

Left hand side showing optio nal navi gatio n input co nnec tion

Use the diagram above to wire the navigation input. Th e terminal strip for this is in your Accessory Bag. See your LORAN, GPS, or plotter manual for information ab out wiring connection s from that unit. The cable shield should be connected only to the Nav device.

Left hand side. Cable 4, Pump Motor.

Please see appendixes for wiring to other motors or solenoids.

P/N 29010049 V1.2 39

Left-hand side. Cable 5, power

Connecting the ground

In the picture above, the ground wire is the green wire. It is connected t o the bolt beside the terminal sockets for the power connection.

The green wire is connected by removing one of the nuts and the lock-washer from the bolt. Place the connector on the end of the green wire over the bolt. Replace the lock washer. Replace the nut and tighten it securely.

The other end of this wire should be connected to the grounding point you have chosen aboard your boat. See page 24 for examples of possible grounding points .

If you are assembling your Autopilot for the first time, please go to the section titled, "Mounting the Processor" on th e nex t page .

FUSE REPLACEMENT

The Si-Tex Processor is protected against reversed power connection by a fuse. The fuse will probably not blow otherwise. If you need to replace this fuse, check your powe r supply for correct polarity.

To replace the fuse:

1. Turn off the power to the Processor.

2. Loosen the right side watertight glands. Remove the end cap. Disconnect the plugs.

3. Remove the 4 Phillips screws holding the inner end cap. Remove the inner end cap.

4. Bend up the copper ground tabs so that they are parallel to the body of the Processor.

P/N 29010049 V1.2 40

5. Loosen the left hand side watertight

glands. Remove the outer end cap.

Disconnect the plugs.

The second method is:

6. Remove the four Phillips screws ho lding the inner end cap. Mount the processor in its location.

7. Hold the left hand inner end cap. Slide

the Processor case to the right. This will expose the circuit board.

Plug the terminal strips and wires into the correct locations.

8. The fuse is located on the top left hand

corner of the board. If it is damaged, replace it with a 20 Ampere AGC fuse.

9. Reassemble the Processor by working

through the above steps in reverse order. Recheck your power polarity

before you insert the power connector.

10. Before leaving the dock, turn on the

Autopilot. Press the Red and Green Keys to move the rudder or outboard motor. If the new fuse fails at th is time, you still have an electrical problem on your boat, or the Autopilot needs repair.

Mounting the Processor

Once you have completed and checked the wiring, you are ready to mount the Processor.

Attach the end pieces. Do not damage any wires while tightening the screws. Tighten the nuts on the watertight glands firmly with your hands. If you must use a tool, be very careful. It is very easy to damage the glands by using too much force.

Turn on the breaker for the Autopilot or connect the Power cable to the breaker.

The black wire connects to the negative terminal. The white wire connects to the positive terminal. The green wire is ground. See page 24 if you have not already decided on a ground.

The Installation of the SP-70 or SP-80 is complete. You are now ready to begin the "Set-up Routine".

There are two ways this can be done, depending on the amount of space you have. The first method will usually be easier.

For ease of wiring, it is recommended that the Processor be mounted horizontally rather than vertically .

The first method is:

Plug the terminal strips into their correct positions on the processor.

Attach the end pieces. Do not cut or crimp any wires while tightening the screws. Tighten the nuts on the watertight glands. Tighten these nuts firmly with your hand. If you must use a tool, be very careful. It is very easy to damage the glands by using too much force.

Mount the Processor in its location.

P/N 29010049 V1.2 41

LOCATING THE “FLUSH KEY”

SP-70 shown in the Pilot mode and steering a heading of 359 degrees

On an SP-70 Control Head, the Flush Key is located immediately below t he digit al disp lay and is flush with Control surface to prevent accidental button pushes.

SP-80 shown in the Pilot mode and steering a heading of 359 degrees

On an SP-80 Control Head, the Flush Key is located immediately below the SET and NAV keys and is flush with Control surface to prevent accidental button pushes.

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SP-70 SET-UP ROUTINE (see page 50 for SP-80 set-up routine)

The SP-70 must be OFF before you begin the Set-up Routine. The first part of this routine can be done at the dock. If you have a Fluxgate Compass, you will later repe at the first part away from the dock.

The SP-70 Autopilot will guide you through the steps of the Set-up Routine. You cannot leave the routine without completing it. Turning off the Autopilot will not cause it to exit from the Routine.

Error Messages will appear if the SP-70 finds a fault. Correct the fault before proceeding to the next step.

An explanation of common Error Messages that may appear is placed inside a box like the one below. A full list of Error messages is at the end of this manual.

1. Press and hold the Flush Key (see page 44). Press and hold the Pilot Key until the display shows [FrST] and then [HO S] (Hard over to Starboard) Release both keys.

The error message for steps 2 to 4 is [rEdO] (redo). Press the Pilot Ke y to cancel the alarm. Then repeat the step.

If you cannot perform these steps without the alarm sounding, check your Rudder Follower Installation and your steering system. Ensure that:

• The steering system can move through its full range of motion.

• The steering system has been bled properly.

• The Rudder Follower Linkage is assembled according to instructions.

• The wire connections goin g from the Rudder Fee dback to the Processor a re connected to the

correct Processor terminal and terminal numbers.

• The wire conne ctions are mechanically strong and are not becoming intermitte nt due to loose

connections.

If you have an Outboard Feedback, ensure that:

• The Outboard Feedback travels an equal distance in each direction.

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The display will show [HO S] (Hard Over to Starboard).

2. Turn the steering wheel fully to the

right. Press the Set Key.

The display will next show [HO P] (Hard Over to Port).

3. Turn the steering wheel fully to the left. Press the Set Key.

The display will show [UAIt] (Wait) for a few seconds.

The display will then show [Cntr] (center).

P/N 29010049 V1.2 44

IMPORTANT

4. Move the steering wheel to the

center position.

CAUTION

The steering gear will move from side to side . As the Autopilot tests the drive system the display will show [d’tSt]. As the Autopilot checks the rudder the display will show [r’tSt]. The Output marks at the top of the display will show the direction of rudder movement . The display may also show timing marks.

6. The display will now show [bLEd] (Bleed). You are now in the bleed

mode.

In the next step, the SP-70 will move the steering system throu gh i ts f ul l ra nge of motion. Pressing and holding th e SBY/OFF KEY will stop the steering movement immediately.

5. Press the Set Key.

If you have installed a pump or retrofitted to an existing mechanical or hydraulic drive unit, you must now bleed and/or time your pump. Please see the section titled Pump Bleeding Instructions.

P/N 29010049 V1.2 45

NOTE: IF YOU DO NOT NEED TO BLEED OR TIME YOUR SYSTEM, GO TO STEP 7.

7. Press the Set Key.

The Autopilot will next display a message about the compass type.

If you have a magnetic compass the display will show [nAG] (magnetic).

If the compass is a Fluxgate Compass the display will show [FLUH].

The Autopilot will next display [turn] (Turn). You must now adjust your compass.

8. Press the Set Key. The Autopilot will turn off.

Go to Step twelve.

The error message for this step is [nC:Er] (No compass Error). Ensure that:

• The compass cable is connected to the correct Processor terminals.

• There are no poor or loose connections on the Compass cable.

• When using a Magnetic Compass Sensor, the sensor reads the Compass card position

properly. Some Magnetic Compasses have magnets so weak that the Sensor wil l not functio n properly.

Press the Pilot Key to clear the al arm, corr ect the pr oblem , try t he step ag ain.

For Fluxgate Compasses

Put your tools and other magnetic obj ects in

To fully adjust the Fluxgate Compass, it is necessary to take a short trip wit h you r bo at.

storage places away from the Fluxgate Compass.

P/N 29010049 V1.2 46

Check your hydraulic installation for any leaks or loose components.

Do not attempt to adjust the compass near a steel bridge, a submarine cable, or a steel ship.

Move your vessel to a location that is:

• Free from other water traffic.

• Far away from large magnetic objects.

9. RE-START SET-UP procedure at Step 1 and follow until display shows [FLUH]. Go to step 10.

10. Slowly turn the boat in as small a circle as possible.

It must take at least one minute to c omplete the turn. If the Compass adjustment is satisfactory, the Autopilot will show [nort]. Go to Step Thirteen.

If the Autopilot will not stop displaying [tUrN], you may have such a strong magnetic field aboard your vessel that the compass is not able to sense any motion. If t his occurs, try moving the compass far away from it’s present location and repeat the turn.

11. Use four #10 (5mm) screws to mount your Fluxgate Compass.

These screws should be a non-magnetic material such as high quality stainless steel or brass.

If the Compass adjustment is not satisfactory the Autopilot will display

[MovE] (Move). The Autopilot has been unable to adjust the Compass for the strong magnetic fields in that location. You must select another location which is further from magnetic materials or power cables. On small vessels the compass location often is a compromise between the most stable position and the position which has the least magnetic interference.

Press the Pilot Key to continue the Set-up Routine.

P/N 29010049 V1.2 47

For Magnetic Compasses

For Fluxgate Compasses

12. If you have a magnetic compass

the Autopilot will display [nort] (North).

Point your vessel, or simply turn the compass, until the compass is pointing North. Press the Set Key .

The Autopilot will then turn OFF.

13. Autopilot will display [nort] (north) after successful calibration of the fluxgate compass (#10 in Set-up Routine).

As accurately as possible, point your vessel to magnetic North and press the Set Key.

The Autopilot will then turn off. This procedure will calibrate your Autopilot heading display with the actual magnetic

The Autopilot has not compensated for any differences between North as shown by your compass and the real direction of magnetic North. You alone are responsible for the accuracy of your compass in its location.

Mount your compass in its location using fasteners made of non-magnetic materials such as high quality stainless steel or brass.

The Set-up Routine is now complete.

P/N 29010049 V1.2 48

heading. The Autopilot has not compensated for any

differences between North as shown by your compass and the real direction of magnetic North. You alone are responsible for the accuracy of your compass in its location.

Mount your fluxgate compass in its location using fasteners made of non-magnetic materials such as high quality stainless steel or brass.

The Set-up Routine is now complete.

SP-80 SET-UP ROUTINE

SP-80 MUST BE OFF BEFORE YOU BEGIN THE Set-up Routine. The first part of this Routine can be done at the dock. If you have a Fluxgate Compass, you will later repe at the first part away from the dock.

The SP-80 Autopilot will guide you through the steps of the Set-up Routine. You cannot leave the Routine without completing it. Turning off the Autopilot will not cause it to exit from the Routine.

Error messages will appear if the SP-80 finds a fault. Correct the fault before proceeding to the next step.

An explanation of common Error messages that may appear is placed inside a box like the one below. A full list of Error messages is at the end of this manual.

1, Press and hold the Flush Key (see page 32). Press and hold the Pilot Key until the display shows [FrST] and then [Ho S] (Hard over to Starboard). Release both keys.

The error message for steps 2 to 4 is [rEdO] (redo). Press the Pilot Key to cancel the alarm. Then repeat the step.

If you cannot perform these steps without the alarm sounding, check your Rudder Follower Installation and your steering system. Ensure that:

• The steering system can move through its full range of motion.

• The steering system has been bled properly.

• The Rudder Follower Linkage is assembled according to instructions.

• The wire connections going from the Rudder Feedback to the Processor are connected to the

correct Processor terminal and terminal numbers.

• The wire connections are mechanically strong and are not becoming intermittent due to loose

connections.

If you have an Outboard Feedback, ensure that:

• The Outboard Feedback travels an equal distance in each direction.

P/N 29010049 V1.2 49

The display will show [HO S] (Hard Over to Starboard).

The display will next show [HO P} (Hard Over to Port).

3. Turn the st eering wheel fully to the left. Press the Set Key.

2. Turn the steering wheel fully to the right. Press the Set Key.

The display will show [WAIt] (Wait) for a few seconds.

The display will then show [Cntr] (Center).

P/N 29010049 V1.2 50

IMPORTANT

4. Move the steering wheel to the

center position.

CAUTION

In the next step, the SP-80 will move the steering system through its full range of motion. Pressing and holding the SBY/OFF KEY will stop the steering movement immediately.

The steering gear will move from side to side. As the Autopilot tests the drive system the display will show [d’tSt]. As the Autopilot checks the rudder the display will show [r’tSt]. The Output marks at the top of the display will show the direction of rudder movement. The display may also show [O’Cur] and other timing marks.

6. The display will now show [bLEd} (Bleed). You are now in the bleed

mode.

If you have a hydraulic system and if you opened the hydraulic lines during the Autopilot installation, then you must now bleed and/or time your pump. Please see the section titled Pump Bleeding Instructions.

5. Press the Set Key.

NOTE:

IF YOU DO NOT NEED TO BLEED YOUR SYSTEM, GO TO STEP SEVEN.

P/N 29010049 V1.2 51

7. Press the Set Key.

The Autopilot will next display a message about the compass type.

If you have a magnetic compass the display will show [nAG] (magnetic).

If the compass is a Fluxgate Compass the display will show [FLUH].

The Autopilot will next display [tUrN] (Turn). You must now adjust your compass.

8. Press the Set Key. The Autopilot

will turn off.

Go to Step twelve.

The error message for this step is [nC:Er] (No Compass Error). Ensure that:

• The Compass cable is connected to the correct Processo r terminals.

• There are no poor or loose connections on the Compass ca ble.

• When using a Magnetic Compass Sensor, the sensor read s the Compa ss car d position

properly. Some Magnetic Compasses have magnets so weak that the Sen sor will not fun ction properly.

Press the Pilot Key to clear the alarm. Cor rect the pr oblem. Try the step again.

P/N 29010049 V1.2 52

For Fluxgate Compasses

To fully adjust the Fluxgate Compass, it is necessary to take a short trip with your boat.

Put your tools and other magnetic objects in storage places away from the Fluxgate Compass.

10. Slowly turn the boat in as small a circle as possible.

It must take at least one minute to complete the turn. If the Compass adjustment is satisfactory, the Autopilot will sh ow [nort]. Go to Step Thirteen.

Check your hydraulic installation for any lea ks or loose components.

Do not attempt to adjust the compass near a steel bridge, a submarine cable, or a stee l ship.

Move your vessel to a location that is:

• Free from other water traffic.

• Far away from large magnetic objects.

9. RE-START SET-UP procedure at

Step 1 and follow until display s hows [FL UH]. Go to step 10.

If the Compass adjustment is not satisfactory th e Autopilot will disp lay

[MovE] (Move). The Autopilot has been unable to adjust the Compass for the strong magnetic fields in that lo cation. You must select another location which is furt her fr om magnetic mat erials or po wer cables. On small vessels the compass location often is a comp romise between the most stable position and the position which has the least magnetic interfere nce.

If the Autopilot will not stop displaying [tUR N], you may have such a strong magnetic field aboard your vessel that the compass is not able to sense any motion. If this occurs, try moving the compass far away from it’s present location and repeat the tur n.

11. Use four #10 (5mm) screws to mount your Fluxgate Compass.

These screws should be a non-magnetic material such as high quality stainless steel or brass.

This completes the Set-up Routine.

Press the Pilot Key to continue the Set-up Routine .

P/N 29010049 V1.2 53

For Magnetic Compasses

For Fluxgate Compass

12. If you have a magnetic compass

the Autopilot will display [nort] (North).

Point your vessel, or simply turn the compass, until the compass is pointing North. Press the Set Key.

The Autopilot will then turn OFF. The Autopilot has not compensated for any

differences between North as shown by your

13. If you have a fluxgate compass, the

Autopilot will display [nort] (North) after successful calibration of the fluxgate compass (#10 in Set-up Routine).

As accurately as possible, point your vessel to magnetic North and press the Set Key.

compass and the real direction of magnetic North. You alone are responsible for the accuracy of your compass in its location.

Mount your compass in its location using fasteners made of non-magnetic materials such as high quality stainless steel or brass.

The Set-up Routine is now complete.

The Autopilot will then turn OFF. This procedure will calibrate your Autopilot heading display with the actual magnetic heading.

Mount your compass in its location using fasteners made of non-magnetic materials such as high quality stainless steel or brass.

The Set-up Routine is now complete.

P/N 29010049 V1.2 54

Pump Bleeding Instructions

1. Bleed your manual steering system

according to the manufacturer's instructions. When you have completed the bleeding, leave the equipment for the bleeding procedure attach ed to your hydraulic steering system.

2. Fill your highest reservoir completely.

Turn the steering wheel just past the stop to press as much oil as is possible into the system.

3. If you can, use a bottle of recommended

hydraulic oil and a piece of plastic tubing to add extra capacity to your highest reservoir.

have a helper, have them watch the oil level in the highest reservoir and refill it when necessary.

4. Your hydraulic cylinder rod is now fully extended in one direction. To bleed the Reversing Pump you will be extending the cylinder rod in the other direction. Open one and close the other b leeding screw just as you did when bleed ing the manual part of your system and you were extending the cylinder arm in this direction. Generally, you close the bleeding screw or nipple closest to the rod which is now retracted. Open the bleeding screw closest to the now extended rod. See diagram on following page.

5. Position yourself so that you can see your hydraulic steering cylinder while operating the Controller.

Adding Capacity

6. You will be able to move the steering cylinder rod by pressing the Red Key or the Green Key on the Controller. When you press the key, the lights will stop blinking and the red or green light will turn on. Extend the rod as far as it will travel in the other direction.

The manufacturer of your system may provide these items when you purchase a bleeding kit for your system. If you

P/N 29010049 V1.2 55

Bleeding cylinder, rod moving left

Bleeding cylinder, rod moving right.

7. If you are using a Reversing Pump, let the Autopilot drive the Reversing Pump until it nearly stops after the rod reac hes the end of it’s travel. This will press as

P/N 29010049 V1.2 56

much oil as possible into the system. It will not damage the pump.

The SP-70 or SP-80 will drive the pump past the electronic rudder limit o nly when

the display shows [bLEd].

8. Refill your steering system from the highest reservoir.

11. Refill the highest reservoir.

12. Repeat steps 6 to 10 at least 10 times.

9. Adjust the bleeding screws so that the cylinder will be bled when the rod is extended in the original direction. Generally, you close the bleeding screw or nipple closest to the now retracted rod. Open the bleeding screw closest to the rod that is now extended.

10. Use the Controller to fully extend the cylinder rod to the other side.

**** IMPORTANT ****

13. Close all bleeding screws or nipples. Clean up any oil spills and wipe fittings clean. Remove any buckets or equipment a short distance from the cylinders and fittings.

14. Use the Control Unit to extend the rod fully in one direction and then the oth er.

15. Check for leaks by looking for spilled hydraulic fluid on or near fittings and cylinders.

16. Check th at a hardover to hardover time of 10 - 15 seconds can be attain ed with your drive unit.

17. Return to Step 7 of the Set-up Routine.

If you have installed a ComNav Marine reversing motor pump, a constant running pump or an engine driven pump, there are several checks tha t must be done during the firs t several weeks o f usage in order to prevent poor or dangerous steering performance. During this period you must check for air or leaks in your hydrau lic syst em.

Residual air in your steering system

Following the initial installation and bleedin g of your ComNav pump, some resi dual air may remain suspended in the hydraulic fluid. During the first few weeks, this air will gradually bleed out through the header tank or the highest helm pump and the oil level may go down. Check several time s and add more oil as required.

Leaking fittings or equipmen t

Following the initial installation and bleeding of your ComNav pump, continuously monitor the oil level of the reservoir, or the highest helm p ump in your steeri ng system and add oil as required. If this condition persists, it may be an indication of leakage in your steering system. Check all hydraulic steering fittings and equipment for leakage.

P/N 29010049 V1.2 57

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P/N 29010049 V1.2 58

PILOTING WITH THE SP-70 or SP-80 AUTOPILOT

This section will introduce you to your SI-TEX Autopilot: Learn your Autopilot's operations step by step, you will find it 's one of the simplest things on your boat.

Steering Control Settings

The SI-TEX Autopilot has a very wide range of steering control settings. Ther e are:

• Four: Rudder Response settings.

• Ten: Sensitivity steps for each Rudder

Response setting.

Each Rudder Response setting controls the steering in a very different way. The four Rudder Response settings are:

• Slow Rudder Response

• Slow Counter-Rudder Response

• Fast Rudder Response

• Fast Counter-Rudder Response

The 10 sensitivity steps are numbered zero to nine. Zero is an active setting and d oes not mean OFF.

In this section, you will learn how to:

• Use your Autopilot to steer a compass course.

• Select between the “fast” and the “slow” boat speed Rudder & Counter-Rudder Response.

• Select the correct sensitivity in each Rudder & Counter-Rudder Response.

• Use the features of your Autopilot.

Some vessels may not use all of the Rudder & Counter-Rudder Response settings.

Turn on the SI-TEX Autopilot by holding

down the Pilot Key for two seconds. The autopilot will display “SP” first, then software versions and last, vessel heading followed b y a “P”. You are now piloting with the SP-70 or SP-80. To get manual command back, press the Sby/Off Key momentarily.

PILOT MODE Fast Boat Speed Setting

Some vessels always respond quickly to a small movement of the steering wheel regardless of the boat speed. These boats might get the best steering control by always using the "fast" boat speed setting. When the boat speed varies, change the sensitivity of the "fast" Rudder Response by a few steps. This might give you better steering performance than using the "slow" boat speed Rudder Response setting.

PILOT MODE Slow Boat Speed Setting

Some vessels always require large amounts of steering wheel movement to start and stop a turn. These might get the best steering performance by using only the "slow" boat speed Rudder Response setting for all speeds. When the boat speed varies, chan ge the Sensitivity of the "slow" Rudder Response by a few steps. This may be all that is required.

After you have learned how to do this, experiment with your boat to find the combination of Rudder & Counter-Rudder Response settings that work the best for you.

P/N 29010049 V1.2 59

What is Good Steering Control?

When your SI-TEX Autopilot is working properly, it will steer your vessel in a s traight line. The boat will not wander back and forth across the course line nor make any sudden turns unless you command it (refer to page

67).

Setting Slow Speed Rudder Response

It is best to set the slow speed Rudder Response first. These adjustments are much easier to do if the water is calm and there is little wind.

OFF

If you wish to turn off the Autopil ot, press and hold the sby/Off Key for 2 seconds. Immediately after pressing this key, you will have manual vessel steering control.

At this point, you will have finished adjusting your compass and exited the Set-up Routine. Move your boat to an open area of water away from docks and other boats.

Your vessel may make several turns while you are setting the Rudder Response. Make sure that you and your passengers are braced for unexpected movement.

Adjust your throttle so that your boat is moving at a commonly used slow speed. If you fish often, this could be your trolling speed. Bring your boat onto a course.

Turn ON the SP-70 or SP-80 Autopilot. To turn on the Autopilot, press the Pilot Key. The Autopilot will fist display SP, then the software version number. Finally, the present course followed by a capital lett er “P” will be displayed. [xxxP]. The Autopilot will now begin to steer the boat along the displayed course. The autopilot is in PILOT MODE and is steering by the compass.

With the Autopilot on, press the Set Key. F or a five second interval the display will read either [FASt] (fast) or [SLOU] (slow). This is the Rudder Response speed setting that your Autopilot is currently using.

If the display is reading [FASt], press the Green Key during the five second in terval to change the display to [SLOU]. Your vessel is now using the slow boat speed Rudder Response settings.

Allow the Autopilot to steer your boat for a few minutes, so you can measure its performance. The pilot may move back and forth across the desired cours e line.

This movement occurs when your rudder sensitivity is too high or your counter rudder sensitivity is set too low. The autopilot is over-correcting for course errors (refer to diagram on page 65).

To decrease the Rudder se nsit iv ity :

P/N 29010049 V1.2 60

Press the Set Key. The display will show [SLOU] for five seconds. During this five second interval, press the Set Key again and the Autopilot will display the Rudder sensitivity setting.

Press the Red Key once to decrease the sensitivity setting by one step.

To increase the Counter-rudder sensitivity:

To decrease the Counter-Rudder sensitivity:

Press the Set Key. The display will show [SLOU] for five seconds. During this five second interval, press the Set Key two more times to display the Counter-Rudder sensitivity setting.

Press the Green Key to increase the Counter-Rudder sensitivity setting by one step.

Wait for half a minute to let the vessel settle. To see how straight a course th e Autopilot is steering, watch the wake of your boat b ehind you. If this new setting is still not suitable, repeat the instructions above. Continue this process until your vessel is steering well.

The vessel may also gradually fall off the desired course line:

To increase the Rudder sensitivity:

Press the Set Key. The display will show [SLOU] for five seconds. During this five second interval, press the Set Key agai n and the Autopilot will display the Rudder sensitivity setting.

Press the Green Key once to increase the sensitivity setting by one step.

Press the Set Key. The display will show [SLOU] for five seconds. During the five second interval, press the Set Key two more times to display the Counter-Rudder sensitivity setting.

Press the Red Key to decrease the CounterRudder sensitivity setting by one step.

Turns and Changing Course

While you are travelling slowly, it is a good time to practice using your SI-TEX Autopilot.

Standby

Press the Sby/Off Key briefly. The autop ilot is now in STANDBY MODE. This will be indicated by the mark in th e top right corner of the display. [xxx’]

TANDBY MODE, the autopilot will display

In S the compass heading. You can manually steer your vessel in S

Power Steer

TANDBY.

Wait for half a minute to see if this is suitable. If your vessel still does not hold the course,

repeat the instructions above.

P/N 29010049 V1.2 61

CAUTION

If you have a mechanical steering system, activation of either the RED or GREEN Key while in the POWER STEER mode, will cause your steering wheel to move.

Pressing the Red or Green Key in STANDBY MODE switches the Autopilot to Power Steer Mode. The display will have a degree symbol in the top right corner [xxx º]. You can now use the Red and Green Keys

to steer.

To turn right, press the Green Key. To turn left, press the Red Key.

To return to STANDBY MODE and manual steering control, press the Sby/Off Key briefly.

Small Course Change

To make a one degree course change to the right, briefly press and release the Green Key. The display will change to show your new course.

To make a one degree course change to the left, briefly press the Red Key. The display will change to show your new co urse.

Dodge

In P

OWER STEER MODE, the rudder angle and

the rate of turn will increase as long as you hold the Red or Green Key

down. When you release the key, your vessel will continue to turn at a constant rate. To decrease the rate of turn, or to go straight, press the other key.

Each time you press the Red or G reen Key:

• output indicat ors appear at the top of th e

display and,

• the rudder angle is displayed for two

seconds.

If you wish to always see the rudder angle, press the Set Key. The display will be locke d on.

To return to the compass heading display, press the Set Key.

Pilot Mode

Press the Pilot Key to place your Autop ilot in PILOT MODE. The Autopilot will now steer b y the compass.

In P

ILOT MODE the Autopilot display will show

the commanded course and a capital “P” at the right-hand side [xxxP].

To dodge around an object in the water, press and hold either the Green or Red Key The letter at the right-hand side o f the di splay will change to a “d” [xxxd]. The course wil l be displayed.

The course will change as long as you hold down the Red or Green Key

. The Autopilot will turn your vessel to follow the changing course. Your vessel will turn at a rate of 5º per second in “slow” boat speed set ting.

After the key is released, the Autopilot will return to its original course. The display will again show the course with a ca pital P [xxx P] on the right-hand side.

Large Course Change

There are several ways to make large c ourse changes:

1. Press the Red or Green Key

until your vessel is heading on the new course. Press the Pilot Key.

While turning, the vessel’s heading usually falls behind the Autopilot’s new co urse. Afte r you release the Red or Green Key

the vessel will continue to turn until it reaches the Autopilot’s new commanded course as displayed.

P/N 29010049 V1.2 62

When your vessel has settled on its new course, you will likely wish to make fine course adjustments using the Red and Green Keys.

sensitivity is too high or your Counter-Rudder sensitivity is set too low. The autopilot is over-correcting for course errors (see diagram on page 67).

2. First estimate or chart the difference in degrees between your new course and your present course. Press either the Red Key or the Green Key until the course to steer shown on the display is the same as your new course. Press the Pilot Key. Your vessel will turn to the new course.

The speed of the turn will be governed by the Autopilot. The Autopilot will turn the ves sel at 5º per second if it is set to the “slow” boat speed setting.

3. A third way to make large course changes is to press the SBY/OFF Key. The Autopilot will go to STANDBY MODE. Press the Red or Green Key to enter POWER STEER MODE and make your course change. When your heading is correct, press the Pilot Ke y. The SP-70 or SP-80 will steer along the new course.

4. Press the SBY/OFF Key. The Autopilot will go to STANDBY MODE. You will be able to use the steering wheel to set the ne w course. Press the Pilot Key again, and your Autopilot will steer your boat along your new course.

To decrease the Rudder se nsit iv ity :

Press the Set Key. The display will show [FASt] for five seconds. During this five second interval, press the Set Ke y again and the Autopilot will show the Rudder sensitivity setting.

Press the Red Key once to decrease the Rudder sensitivity setting by one step.

If your vessel continues to wander across the course line, repeat the above instructions until the Autopilot steers your boat in a straight line.

To increase the Counter-Rudder sensitivity:

Press the Set Key. The display will show [FASt] for five seconds. During this five second interval, press the Set Key two more times to display the Counter-Rudder sensitivity setting.

Press the Green Key to increase the Counter-Rudder sensitivity setting by one step.

Setting Fast Speed Rudder & Counter- Rudder Response.

Press the Pilot Key to steer a course by compass. Advance the throttle so that your vessel is moving at cruising speed. With the autopilot ON, press the Set Key. For a five second interval the display will show either [SLOU] (slow) or [FASt] (fast). This is the rudder response speed setting that your autopilot is currently using. If the display is reading [SLOU], press the Green Key during the five second interval to change t he displa y to the [FASt] (fast) setting. Your vessel is now using the fast boat speed Rudder Response settings.

The vessel may move back and forth across the desired course line.

This movement occurs when your Rudder

P/N 29010049 V1.2 63

If your vessel falls away from the course line:

The Rudder Response is not sensitive enough (see diagram on page 67).

To increase Rudder sensitivity:

Press the Set Key. The display will show [FASt] for five seconds. During this five second interval, press the Set Key again and the Autopilot will display the Rudder sensitivity setting.

Press the Green Key once to increase the Rudder sensitivity setting one step.

Fast Speed Turns and Course Changes

Your vessel will respond more quickly to a Red or Green Key press than it did in the “slow” speed Rudder Response setting. The rate of turn in the “fast” boat speed setting is 10º per second. Experiment with this so that you will be familiar with its effect.

If the vessel continues to fall away from its course, repeat the steps above.

To decrease Counter-R udder sens itiv ity :

Press the Set Key. The display will show [FASt] for five seconds. During the five second interval, press the Set Key two more times to display the Counter-Rudder sensitivity setting.

Wait for half a minute to let the vessel settle. To see how straight a course the autop ilot is steering, watch the wake of your vessel behind you. If the new setting is still not suitable, repeat the instructions above. Repeat until your vessel is steering well.

All commands in the fast boat spee d Rudder Response setting work as they did in the slow speed Rudder Response setting.

A table of Autopilot commands is on page 73.

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Correct Vessel Response D uring a Course Cha nge

P/N 29010049 V1.2 65

Adjusting Your Digital Rudder Angle Indicator (RAI)

The SP-70 & SP-80 also provide an electronic Rudder Angle Indicator.

You can adjust the R.A.I. so that it accu rately reflects your rudder movements.

Offset

Many vessels always need the rudder positioned to the right or left a small amount. This slightly offset rudder position is needed to correct for the turning effect of a single propeller. To the driver, it feels that this Offset Position is the straight-ahead position or the 0-degree position.

For this adjustment, you should have your boat out on the water away from traffic lanes. If you have power assisted st ee ring, start with your motor idling so that you can use your power steering.

Press the Pilot Key to turn on the autopil ot. Briefly press the Sby/Off Key.

With the Autopilot in STANDBY, use manual steering to move the steering gear from the left mechanical limit to the right limit. W atch the motor or rudder. Estimate in degrees the size of the arc from left to right.

This must be done manually, as the aut opilot will not move the steering gear so far that the steering strikes a mechanical limit. The Autopilot sets these electronic limits during the Set-up Routine to save wear on your steering system.

Press the Green Key once and then press the Flush Key twice. The display now shows the total degrees of travel of your steering system. Press the Red and Green Keys adjust the number until it is the same as your estimation of the actual arc.

To avoid confusion, the RAI can be calib rated so that it will show zero degrees when the vessel is travelling straight ahead, e ven if the rudder is slightly offset.

While travelling straight ahead at cruising speed with the Autopilot in P press the Flush Key. Press the Red Green Keys to adjust the RAI to show zero degrees.

The Autopilot will return to its previous display when you have finished.

OWER STEER,

and

A short interval after you have completed your adjustment, the Autopilot will return to its previous display.

P/N 29010049 V1.2 66

Using Your Navigation Interface

To be safe, learn to use your Navigation Interface at slow speeds, away from other vessels.

Turn on the navigation device.

If the autopilot consistently beeps every five seconds and displays [n’dAt] (No Data) then it is not receiving usable data from the navigation device. The Autopilot will stay in the N

AV MODE and WILL CONTINUE TO STEER

TO THE PRESENT HEADING USING COMPASS INFORMATION

This could be a LORAN, GPS or plotter. Give it time to find its position accu rately and turn off its warning indicators.

Enter a Waypoint into the navigation device.

With some navigation devices , i t i s n ece ssary to tell them to send information to the Autopilot.

With all navigation devices, make sure that it is sending information in the NMEA 0183 format.

Look at the Control Unit display. Press the Nav Key.

The autopilot is now in NAV MODE. The Autopilot will display [xxx

n}. The large lower

case “n” at the right side of the display shows the Autopilot is in N

AV MODE.

If the SI-TEX Autopilot receives usable data from your navigation device, the display will show the course changing towards the new bearing. The SP-70 or SP-80 will bring your boat onto the new course. It will steer towards the Waypoint using the information from the Nav device and the compass.

Please remember that all SI-TEX SP-70 and SP-80 Autopilots are tested at the factory, so the first things to check are your wiring and your navigation device. Read your owner’s manual for the navigation device to make sure that it is sending out NMEA 0183 language. Also see the next section: “Problem Solving”, for further help.

If the Autopilot intermittently displays [F’dat] (Faulty Data), then it is receiving a warning signal from the navigation device.

Caution

It is strongly recommended that you do not continue to use the NAV MODE if [F’dat] is displayed.

This signal indicates that the navigation information may not be accurate. Check your navigation device for warning in dicators such as a flashing light or message.

If the vessel seems to steer awa y from the course line, or back to it’s starting point,

push and hold the Flush Key and press the Green Key once. Please read the section called “Navigation Interface.”

P/N 29010049 V1.2 67

The Navigation Interface

Your SI-TEX Autopilot will receive information sent to it from a navigation device (such as a LORAN, plotter or GPS) in NMEA 0183 format.

See page 41 for navigation input con nection instructions.

Because of this, the SI-TEX Autopilot lets you change the way it interprets the direction of cross track error. In N Flush Key. The display wi ll show e ither [ ---‘n] (normal) or [---r] (reversed). Use the Green Key to change the setting. Your cross track error direction is correct if the Autopilot is following the course line.

AV MODE, press the

Using information from a compass and the navigation device, the Autopilot will steer your vessel along a course line to a waypoint. The Autopilot will also steer your vessel through a series of way points which the navigation device has grouped together as a route.

The Autopilot cannot steer by the information from the navigation device alone.

Cross Track Error

Cross track error is a measur e of th e distan ce your boat has fallen away from the course line.

Cross track error is measured as the length of a line drawn from the course line to your position at right angles to the course line.

Cross track error also has a left or righ t hand direction. For example: The boat can be one half a mile to the left of the course line.

Manufacturers have defined the direction of the cross track in different wa ys. There i s no agreement on whether a left hand cross track error means that the boat is to the left of the course line or the course line is to the left of the boat.

If the Autopilot is steering away from the course line while the Navigation Interface is on, then the cross

track error direction may be incorrect. Change the cross track error sense. If the Autopilot begins steering towards the course line, you have solved the problem.

NMEA 0183

The SP-70 AND SP-80 receives information from LORAN, plotters, and GPS in the National Marine Electronics Association 0183 language. A list of the usable data sentences is as follows:

1. RMB + RMC

2. RMB + RMA

3. APB

4. APA

5. XTE + BOD

6. XTE + HSC

7. XTE + WBD

8. VBW

9. VHW

10. VTG Your SI-TEX SP-70 and SP-80 Autopilot

conforms to the standards of the NMEA 018 3 language.

P/N 29010049 V1.2 68

Be aware that not all LORANS, GPS, or plotters conform to the NMEA standard. Statements that a GPS, LORAN, or plotter provide navigation data may mean that the data is provided only in the manufacturer’s own language.

If you are purchasing a LORAN, GPS or plotter, make sure that it sends out at least one of the listed sentences.

If you have further questions about the purchase of a navigation device, or if you experience difficulties using the N

AV MODE of

your SP-70 or SP-80 Autopilot, contact your SI-TEX dealer.

P/N 29010049 V1.2 69

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P/N 29010049 V1.2 70

SP-70 and SP-80 Operation Commands

COMMAND ACTION RESULT

Steer by compass SP-70/80 is off or in S

MODE.

Point bow and press Pilot Key.

Turn OFF

Course Change: small, left SP-70/80 in P

Course Change: small, right

Course Change: large, left

Press and Hold Sby/Off Key for two seconds.

ILOT MODE.

Press Red Key Once.

SP-70/80 in P

Press Green Key once.

SP-70/80 in P

Press and hold Red Key.

Display will show:

ILOT MODE.

x x x d

Displayed course will decrease. When it reaches your desired heading release the key. Press the Pilot Key. Actual vessel heading will likely lag behind displayed course.

Course change: large, right.

SP-70/80 in P Press and hold Green Key. Display will show:

ILOT MODE.

x x x d

Displayed course will increase. When it reaches your desired heading release the key. Press the Pilot Ke

ctual vessel heading will likely lag behind displayed course.

TANDBY

Boat will settle on course. Display will show [xxxP]. x x x P

Immediately upon pressing the Sby/Off Key you will have manual steering control. The Autopilot will turn off in two seconds.

One degree course change to left.

One degree course change to right.

Boat will settle on new heading.

Display will show:

x x x P

Boat will settle on new heading. Display will show:

x x x P

P/N 29010049 V1.2 71

Operation Commands cont.

Dodge: left In PILOT or NAV MODE.

Press and hold Red Key. Display will show:

x x x d

Release Red Key to return to PILOT or NAV MODE.

Dodge: right In P

ILOT or NAV MODE.

Press and hold Green Key. Display will show:

x x x d

Release Red Key to return to PILOT or NAV MODE.

Rudder response: change In P

ILOT MODE.

Press Set Key once. Display will show either:

Vessel turns left. When key is released P

ILOT

display returns and vessel returns to original course.

Vessel turns right. When key released P

ILOT display

returns and vessel returns to original course.

Autopilot will switch to the other set of rudder response adjustment s.

Steer by Loran, GPS or plotter.

Dim or brighten lights on Control Unit.

Change from compass display to permanent rudder angle display.

F A S t

S L O U

Press Red or Green Key. Select Waypoint. Press Nav

Key.

TANDBY.

In S Press Set Key once. Press Green Key to increase

or Red Key to decrease brightness.

OWER STEER MODE, press

In P the Set Key.

Display will show [xxxn] Pilot will steer by compass and

NMEA data received. If no NMEA data received, pilot will remain in NAV mode but will steer by compass.

Control Unit’s backlight will move through eight levels of brightness.

The SP-70 or SP-80 will constantly display the rudder angle while in

TANDBY. Pressing the Set Key

S again will return to the compass display.

P/N 29010049 V1.2 72

Adjustment Commands

COMMAND ACTION RESULT

Rudder sensitivity: increase P

ILOT or NAV MODE.

Press Set Key twice. Press Green Key.

Rudder sensitivity: decrease In P

Press Set Key twice. Press Red Key.

Counter-Rudder sensitivity: decrease

In P Press Set Key three times. Press the Red Key.

ILOT or NAV MODE.

Autopilot will steer with a “harder” turn to correct course deviations, causing a shorter correction, but more overshoot of the intended course. Changes will only affect the current speed (fast or slow) sensitivity setting. Autopilot will steer with a “softer” turn to correct course deviations, causing a longer correction distance but less overshoot of the intended course. Changes only affect the current speed (fast or slow) sensitivity setting). Autopilot will steer with a “harder” turn to correct course deviations, causing a shorter correction, but more overshoot of the intended course. Changes will only affect the current speed (fast or slow) sensitivity setting.

Counter-Rudder sensitivity: increase

In Pilot or Nav Mode. Press Set Key three times. Press the Green Key.

Cross Track Error Sense: change

In N

AV MODE. Press Flush

Key. Press Green Key.

Set-up Routine Pilot is OFF. Press and hold

Flush Key. Press and hold Pilot Key.

Autopilot will steer with a “softer” turn to correct course deviations, causing a longer correction distance but less overshoot of the intended course. Changes only affect the current speed (fast or slow) sensitivity setting.

Autopilot will steer properly along course line when Cross Track Error Sense is correct. See Navigation interface section for more information.

Set-up Procedure begins.

P/N 29010049 V1.2 73

User Codes for the SI-TEX SP-70 & SP-80

BLED [NTR DTST EEPR

FAST

FC (digit) (digit)*

F’CM P F’DAT

FLUX

FR (digit) (digit)* F’RST

GHrd

XEAD*

XEYS X0 P X0 S

Bleed mode. See Set-up section. Center the rudder Drive Test Display Faulty EEPROM. The autopilot will not function. The processor has

failed. Have your autopilot serviced by a SI-TEX deale r. Momentarily indicates FAST MODE has been selected

Fast mode counter rudder value The fluxgate or the magnetic compass sensor is fau lty and mu st be

serviced. Contact your nearest SI-TEX dea ler. The autopilot is in NAV MODE. The navigat ion device is sending the

autopilot a warning signal indicating that the n avigation da ta may be faulty.

HECK: The navigation device (LORAN, GPS) for warning signals such

as a flashing display, a blinking light, or a warning message. Y ou may be able to correct the problem using information fr om the owner’s manual for the device.

It is strongly recommended that you d o not con tinue to operate the SITEX SP-70 or SP-80 Autopilot in N message.

Fluxgate compass detected. Fast mode rudder value

Full reset. The SP-70 or SP-80 requires t hat the Set-up Rou tine be repeated. After the Set-up Routine is done, the problem shou ld be f ixed. If this error message continues to occur , take your Autop ilot t o a SI-TEX dealer for servicing. Ghost Rudder active. The Rudder Feedback has f ailed and th e Ghost Rudder program is running. Your Autopilo t will wor k but th e quality of steering control will not be as good.

HECK: The Rudder Feedback wiring at the Proce ssor.

Cancel the alarm using the Pilot Key. The message w ill reapp ear whenever the SP-70 or SP-80 is in Pilot Mode. The dig ital and analo g RAI will not work. The battery voltage is more than 40 volts. I f this prob lem is not fixe d, th e Processor could be damaged. You could damage your battery if you do not fix this problem.

HECK: Your batteries fluid level and the regulator in your gene rating

system. Faulty Head

Stuck key in the control head. Request Rudder Hard Over Port. Request Rudder Hard Over Starboard.

AV MODE while it is displaying this error

P/N 29010049 V1.2 74

X0T

LBAT

L0AD

LT (digit)(digit)*

M,AG N[ER

M,.[ M , P M, DAT NORT N0UE

The Processor is too hot. This is usually due to a very high demand for electrical power from the reversing pump. It could also indicate a failure inside the Processor.

HECK: The Processor and the Pr ocessor space f or heat sources.

Should the temperature rise still higher, the SP-70 or SP-80 will turn off the steering outputs. When the temperature falls, t he steering ou tputs will turn back on. We recommend that you have the Auto pilot serv iced by a SI-TEX dealer before it is used again. The supply voltage is less than 9.5 Volts. Th e Autopilo t canno t operat e reliably.

HECK: Your batteries fluid level and the regulator in your gene rating

system. This warning indicates that t he SP-70 or SP-80 ha s been producing a larger than normal output current for a pe riod of t ime. This might b e due to increased mechanical resistance in your ste ering system. If this warning appears after an extended period of use, t ry to think of something that might have changed after t he Autop ilot wa s insta lled. H as the rudder struck any submerged objects? Are there any bearings that need grease? Is the rudder fou led? If this warning appears when you first use your Aut opilot, che ck that you r steering gear moves easily.

HECK: Your wiring is correct. Look for any connections which allow a

short circuit. If you have an electric motor in your steering system, look for burned or shorted windings. Light intensity.

Indicates magnetic compass detected. No compass error during Dockside Set-up.

HECK:

• The compass cable is connected to the correct Processor terminals.

• There are no poor or loose connections on the Compass cable.

• When using a Magnetic Compass Sensor, the sensor reads the

Compass card position properly. Some Magnetic Compasses have

magnets so weak that the Sensor will not function properly. Press the Pilot Key to clear the alarm. Magnetic/fluxgate compass fault

Not receiving NAV Data North (see Dockside Set-up), Move. Unsatisfactory compass adjustment. See page 49 or 54.

P/N 29010049 V1.2 75

0[VR

0FF [0RS

The Reversing Pump or the mechanical steering is draw ing too much current from the Processor. This may be caused by a defective motor or perhaps because the rudder is stuck. You must take control of the vessel. If y ou canno t find an obvious reason for the problem, have the autopilot serviced b efore you use it again. Off course error. Vessel has fallen off course more than 20 degrees for over 30 seconds.

P (digit) (digit)* PRON

RAN RED0

RFU

RVDR RT(digit) (digit)*

RTST S (digit) (digit)* SC (digit) (digit)*

SL0U

-SP-* SR (digit) (digit)* TVRN

UAIT

Port Rudder indicator EPROM Error. This indicates a failure in the Processor. Take the

Autopilot to a SI-TEX service center. Ram Error. This indicates a failure in the Processor. Take the Autopilot

to a SI-TEX service center Occurs during Set up Routine. See page 45 or 51.

Rudder Feedback failure. This message will appe ar ONLY in PILOT or NAV modes. Digital and analog RAI’s will not work.

HECK: The Rudder Feedback.

The rudder is not moving according to the Autop ilot’s command s.

HECK: The rudder mechanism and the Rudde r Feedba ck.

Rudder travel for calibrating the digital rudder angle reading. Rudder test message Starboard Rudder indicator. Slow mode counter rudder value. Momentarily indicates slow mode has been selected. Sign-on message. Slow mode rudder value. While adjusting compass, if the auto pilot will not stop d isplaying turn , you

may have such a strong magnetic field aboard your vessel that the compass is not able to sense any motion. If this o ccurs, try moving t he compass far away from it’s present location. Wait.

P/N 29010049 V1.2 76

Problems Without An Error Code

The Autopilot will not turn on.

The Autopilot starts the Set- up Routine. The display shows [HO S].

You have one of the following problems:

1. The battery is dead or the battery connections are faulty.

2. The computer is faulty.

3. The program is faulty.

4. The fuse is faulty and must be replaced. See page 40.

short on the +5V line. Check RFU cable for shor

between 1 & 3.

The Autopilot detected an error in its memory and then erased the defective memory. You must now do the Set-up Routine. You will not have to bleed your hydraulic system unless you have opened the hydraulic lines or run out o hydraulic fluid.

The Control Head displa goes blank, the Autopilo ceases steering and you have manual control.

The random occurrence of this problem is possible bu unlikely. If this problem occurs twice, your Autopilot ma need servicing. Contact your SI-TEX dealer.

The SP-70 or SP-80 Control Head may be disconnected. For safety reasons, should the Co ntro l Head in adverte ntly be disconnected, the Autopilot will automatically switch off.

+5V may be shorted due to short on the Rudder Feedb ack Pot or cable.

P/N 29010049 V1.2 77

APPENDIX A

Connections to 4 and 5 Wire Motors

P/N 29010049 V1.2 78

APPENDIX A

Connections to 4 and 5 Wire Motors (using a clutch or lockup valve)

Rated for 3 amps continously/5 amps intermitte ntly

P/N 29010049 V1.2 79

APPENDIX B

Connections to Solenoid Valves

P/N 29010049 V1.2 80

APPENDIX C

Connecting a Second Location or Second Station Options

Your Autopilot system can support remote autopilot operation in one of two ways:

1) The first option is to install one or more Second Location Kits (part #10080034). This allows the user to connect and use an SP-70 Control head at several locations. If you chose this method, it is important to note that only one SP-70 Control Head can be connected at an y given time. Yo u are in fact only moving your Control Head from one loca tion to another .

2) The second option is to install a Second Station Kit (part #10080035). This allows the user to connect two fully functional Control Heads at different locations. Only one of the two Control Heads can be in command at any time, but transferring command from one to the other is as simple as holding down the Red & Green Dodge Keys for 2 seconds.

Second Location Kit

Right-hand side showing optional second location connections

Part Number 10080034

The Second Location Kit contains all the items you will require to install a second location outlet for your autopilot. The kit should contain the following items:

1. 1 only Mounting Clip for the SP-70 Control Unit.

2. 1 only Cable Gland and Nut.

3. 1 only Receptacle and Cap with 30 foot cable.

4. 1 only Stainless Steel mounting washer.

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To connect the cable, first loosen off the right-hand cap on the SI-TEX Pro cessor Box and re move the “knock-out” at the top of the cap by using a 9/32 inch (7mm) drill. Once the “knock-out” has been removed, install the cable gland and the cable. Next connect the individual wires on the second location cable to the middle terminal strip , paralleling the existing main receptacle wiring (Cable 1). Test your connections by disconnecting the c ontrol unit from the main receptacle and connecting it to the second s tation receptacle. For specific information on the installation of the receptacle and the mounting clip, please refer to page 25 of this manual.

Second Station Kit

Part Number 10080035

Right-hand side showing optional second station connections

The Second Station Kit contains all the ite ms you will require to install a second st ation outlet for your autopilot. The kit should contain the following items:

1. 1 only SP-70 Control Head

2. 1 only Mounting Clip for the SP-70 Control Unit.

3. 1 only Cable Gland and Nut.

4. 1 only Receptacle and Cap with 30 foot cable.

5. 1 only Stainless Steel mounting washer.

6. 1 only 6 pin miniature plug. To connect the cable, first loosen off the right -hand cap on the SI-TEX P roc essor Box and re move

the “knock-out” at the top of the cap by using a 9/32 inch (7mm) drill. Once the “knock-out” has been removed, install the cable gland and the cable. Next con nect the seco nd station wires to t he 6 position miniature plug according to the above d iagram. Insert the plug in to the top position on the right-hand side. For specific i nformation on th e installation o f the receptacle and the mounting clip, please refer to page 25 of this manual.

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Operation

The Second Station is identical i n operation to the Main Station as described in “Piloting with the SP-70 or SP-80 Autopilot”. Only one of the controls can operate the autopilot at any given time. The unit that is non-active will have a continuously flashing LCD display and the active control will have a steady display. To activate the non-active control, press and hold bo th the Red and Green pushbuttons for 2 seconds. This control will now become active and go into the same mode as the previously active control was operating in.

Turning the Autopilot ON From The Main Station or the Second Station

To turn the autopilot on from either the Main Station or the Second Stati on, press the pilot key on one of these units. The Autopilot will turn on and the s a me st at ion wil l become active. The display is solid.

Turning the Autopilot off from the Main or Second Station

The autopilot can only be turned off from the active station . From the station tha t is in command, press and hold the Off key for 2 seconds. The autopilot system will now turn off. NON ACTIVE Station: The display keeps blinking or flashing.

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APPENDIX D

Connecting a Rudder Angle Indicator

Right-hand side showing optional RAI connection.

The cable gland for a rudder a ngle indicator is in your Acc essory Bag. W e do not supply a ca ble for this installation but recommend a #22 gauge, two conductor cable that is round in order to make a water-tight seal. The outer diameter of this cable must not exceed ¼ inch (6.5mm) or be less than 5/32 inch (4mm). The gland for this input mu st be mounted on the end ca p. To locate the hole for the gland, look on the inside of the end cap. You will see several places where the plastic has been formed so that a hole may be easily drilled. Drill the hole using a 9/32 inch (7mm) drill. Place the gland from the accessory kit in the hole. Fasten it with the suppli ed plastic nu t and tighten securely.

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APPENDIX E

Connecting the NMEA 0183 Heading Output

Location of terminal strip J5

The SP-70 autopilot has a data bus that sends out NMEA 0183 heading information to other external devices such as radars. He ading data is transmitted once per second and provid es two data sentences: HDM (magnetic heading) and HDG (magnetic heading, deviation & variation). The signal is transmitted at 4800 baud and has enough output to drive one 0183 "listener". For applications requiring more than one "listener" please contact the factory.

The NMEA 0183 data output format is a two wire signal. One wire (signal) connects to pin 1 of terminal strip J5 and the other wire (return) connec ts to pin 2 of terminal strip J5 . Termi nal stri p J5 is located in the lower right side of the SP-70 Proces sor circuit board (see above). The two pin connector required for connecting the heading output is included in your accessory kit.

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CERTIFICATE OF LIMITED WARRANTY

All Products Except Radar

Providing you present a valid proof of pu rchase, SI-TEX Marin e Electronics Inc. warr ants all parts of each new product agains t defects in material and workmanship under normal use and wi ll repair or exchange nay parts proven to be defective at no charg e fo r a period of two years for parts and one year for lab or fro m the da te of purcha se, exce pt a s provide d be low un der L imit ed War ra nty Ex ce ption s.

Defects will be corrected during normal working hours by an authorized SI-TEX Marine Electronics Inc. dealer, service center, or at the SI-TEX office in Clearwater, Florida. There will be no charge for labor for a period of one year from the date of purchase, except as provided below under Limited Warra nty Ex ce ption s.

This Warranty and Proof of Purch ase must be made available to the authorized SI-TEX M arine Electronics Inc. service location or dealer at the time of service.

LIMITED WARRANTY EXCEPTIONS

SI-TEX Marine electronics Inc. will not be responsible for equip me nt which has b ee n s ubje cte d to wa te r o r li ght eni ng dama ge, ac cident, abuse, or misuse nor any equipment on which the serial number has been removed, altered, or mutilated. SI-TEX Marine Electronics Inc. assumes no responsibility for damage incurred during installation. This Limited Warranty is effective only with respect to the original purchaser. Any cost associated with transducer replacement , other than the cost of the transducer itsel f, is specifically exclud ed from this Limited Warranty. Travel cost incurred will not be accepted for SI-TEX Marine Electronics Inc. products. THERE ARE NO WARRANTIES WHIC H EXT END B EYO ND THE DESCR IPTIO N OF THE F ACE HER EOF.

Charges for overtime, stand-by, holiday and per diem are specifically excluded from the Limited Warranty. Chart paper, stylus belt, lamps, and fuses are consumable items and are not covered by this Limited Warranty. Installation workmanship or materials except as provid ed directly by SI-TEX marine Electronics Inc. are not covered by this Limited Warranty. SI-TEX Marine Electronics Inc. equipment or parts thereof which have been repaired or altered except by an authorized SI-TEX Marine Electronics Inc. dealer or service center are not warranted in any respect. Transducer, software update, batter y, microphone , magnetro n, and microwave comp onents and water damage on wate r resistant VHF radio are items excluded from the two-year warranty and are covered by warranty for a period of one year for both parts and labor.

SPECIFIC EXCLUSIONS

SI-TEX Marine Electronics Inc. will not, at any time, assume any costs or labor charges for checkout or external line fuse replacement of problems not found to be at fault in the equipment itself. THERE ARE NO WARRANTIES OR GUARANTEES EXPRESSED OR IMPLED WHICH EXTEND BEYOND THE DESCRIPTION ON THE FACE HEREOF, INCLUDIN G WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE AND MERCHANTABILITY. S ITEX MARINE ELECTRONICS INC. HAS NOT OTHER LIA BILTY TO PURCHAS E FOR DIR ECT OR CONSI QUEN TIAL DAMA GE OR ANY THEORY INCLUDING ABSOLUT E L IABILITY, TORT, OR CONTRACT, THIS LIMITED WARRANTY CANNOT BE ALTERED OR MODIFIED IN ANY WAY AND SHALL BE INTERPRETED IN ACCORANCE WITH THE LAWS OF THE STATE OF FLORIDA. THIS WARRANTY IS LIMITED TO THE CONTINENTAL USA, ALASKA, HAWAII, AND CANADA.

Mailing Address:

SI-TEX Marine Electronics Inc.

#800 – 11001 Roosevelt Blvd. St. Petersburg, Florida 33716

727-576-5995

HOW TO OBTAIN SERVICE UNDER THIS WARRANTY

To provide greater flexibility, SI-TEX Marine Electronics Inc. gives you the option of obtaining service under this warranty by either: (a) Contacting an authorised SI-T EX Marine Electronics Inc. serv ice station (The closest s ervice statio n may be found by contac ting

your dealer of purchase.) OR (b) Shipping your equipment prepaid via UPS o r truck with insurance prepaid to SI-TEX Marine Electronics Inc. at the address

provided below. SI-TEX Marine Electronics Inc. will, whenever possible, make all repairs covered by Li mited W a rranty within two

weeks of receiving the equipment in Florida and return same to you, freight prepaid. For parcel post shipment, use post office

box address given above. (c) You must present a copy of your Purchase Sales Slip at the time you request warranty service.

Shipping Address:

SI-TEX Marine Electronics Inc.

#800 – 11001 Roosevelt Blvd.

St. Petersburg, Florida 33716 SI-TEX Marine Electronics Inc. is a leader of quali ty digit al Instr uments, LCD and Video Fish Finders, Loran, GPS , VHF Radio, Marine Stereo, and Radar. For more information, contact your SI-TEX dealer or the main office, location in Clearwater, Florida.

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Si-tex SP-80 User's Manual

Specifications and Main Features

Frequently Asked Questions

User Manual