TP2030 TP30 Tillerpilot2030

User Manual: TP30

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Manual

Navico TP20 & TP30

Tillerpilots

Page 3

CONTENTS

1. General

1.1 Introduction

1.2 Technical Summary

1.3 The Complete Navigation System

2. Operation

2.1 General

2.2 Autopilot Mode

2.3 Adjusting Course

2.4 Autotack

2.5 Tiller Movement (Gain)

2.6 Seastate

2.7 Autotrim

3. Advanced Features

3.1 Navlock™

3.2 Sail To Wind

3.3 Using External Compass

4. Configuration

4.1 Porthand Mounting

4.2 Calibration Mode

4.3 Adjusting Gain

4.4 Adjusting Seastate

5. Installation

5.1 Fitting Tillerpilot

5.2 Electrical Installation

5.3 Interfacing Via NMEA

5.4 NMEA Sentences Received

6. Appendix

6.1 Advice On Operation

6.2 Fault Finding

6.3 Auto Compass Calibration

6.4 Spares & Accessories

6.5 Service & Warranty

Page 2

E03547 Issue 1.0

The technical data, information and illustrations contained in this publication were to the best of our knowledge correct at the time of going to print. We reserve the right

to change specifications, equipment, installation and maintenance instructions without notice as part of our policy of continuous development and improvement.

No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form, electronic or otherwise without prior permission from Simrad

Navico Ltd.

No liability can be accepted for any inaccuracies or omissions in the publication, although every care has been taken to make it as complete and accurate as possible.

MDL 2/12/98

For service and advice please contact the main Simrad dealer in your country of residence.

Page 5Page 4

1 General

1.1 Introduction

The TP20 & TP30 Tillerpilots from Simrad are suitable

for a wide variety of tiller steered sailing yachts up to

12.8M (42 Ft) in length.

Combining highly sophisticated electronics with

advanced software and a powerful mechanical drive,

it is capable of providing reliable and accurate steer-

ing performance under a variety of different condi-

tions with minimal current consumption.

The Tillerpilots have been designed so that, while they

represent the state of the art in marine autopilots with

many advanced features, they remain very simple to

operate, using only five keys to access all functions.

Sophisticated functions available include Sail To Wind

Mode and Navlock Mode (Steer To GPS) using exter-

nal equipment linked directly to the Tillerpilot

through the inbuilt NMEA0183 interface.

There is also the option to operate the Tillerpilot

remotely, either using the simple HR20 Hand

Remotee. For more details, refer to the separate

instruction card supplied with this unit.

To ensure the best results from your Tillerpilot it is

essential that the unit is installed correctly. Please

read this manual thoroughly before installation.

Thank you for choosing Simrad

If you are pleased with your Tillerpilot we hope you

will be interested in our range of marine electronic

equipment, which is manufactured to the same high

standards as the Tillerpilot. Please contact your near-

est Simrad Agent for a catalogue showing our increas-

ing range of high tech navigational instruments, GPS,

CHart Plotters, autopilots, Radar, Fishfinders and

VHF radio sets.

Simrad operate a policy of continual development

and reserve the right to alter and improve the

specification of their products without notice.

Tillerpilot¨is a Registered Trade Mark of

Simrad Navico Ltd

NAV

STBY

TACK

STBY

AUTO

Tillerpilots TP20 & TP30

1.2 Technical Summary

TILLERPILOT SPECIFICATIONS

TP20 TP30

Drive System Screw Recirculating

Thread Ballscrew

Hardover time 0kg 6.9 secs 4.0 secs

20kg 8.0 secs 4.7 secs

40kg 12.0 secs 6.0 secs

50kg 8.0 secs

Peak Thrust 65kg (143lbs) 85kg (187lbs)

Operating Stroke 250mm (10in)

Supply Voltage 12v DC (10v-16v)

Power Consumption 0.06A (Stby)

(Typical) 0.5A (Auto)

Mounting Starboard as default

(Can be reversed)

NAV

STBY

TACK

STBY

AUTO

105mm

(4.0in)

60mm

(2.3in)

610mm (24in)

MID STROKE

Fig 1.1 - Tillerpilot dimensions

NAV

STBY

TACK

STBY

AUTO

SIMRAD TP20

SIMRAD TP30

1.3 The Complete Navigation System

The TP20 and TP30 are fully compatible with the Navico Corus instrument system, so not only do

they operate as a stand alone autopilot, but by connecting it to a Corus instrument network, they

can form part of a complete navigation system, offering additonal functions such as connection to

an external compass, wind sensor or navigational receiver, as well as additional remote control

options. For more details, contact Simrad Navico at the address on page 2.

The new range of IS15 instruments from Simrad will interface with the T20 & TP30 to provide wind

information and (when connected to a GPS) crosstrack error and bearing to waypoint information.

Please refer to the relevant IS15 manual for further information

Page 7Page 6

STBY

NAV

TACK

STBY

AUTO

Fig 2.1 - Tillerpilot keypad

STBY

TACK

STBY

AUTO

Fig 2.2 - Standby Mode

STBY

TACK

STBY

AUTO

STBY

AUTO

Fig 2.3 - Engaging Autopilot Mode

STBY

NAV

TACK

STBY

AUTO

Fig 2.4 - Course adjustment to Port

2.4 Autotack

The Tillerpilot has a built-in autotack facility, allowing

easy tacking of the vessel when single or short handed.

An autotack is only possible when in Autopilot Mode

To initiate autotack, press and hold the Tack key, fol-

lowed by either the Port or Starboard key, depending

on which direction you wish to tack (Fig 2.5).

The operation of the Tillerpilot will differ during an

autotack depending on whether the pilot is in Sail To

Compass or Sail To Wind Mode:

2.5.1 Autotacking In Compass Mode

If in Sail To Compass Mode (default), the Tillerpilot

will then tack the vessel in the selected direction. The

WP30 has a factory preset autotack angle of 100¼, how

ever this can be adjusted to any value between 40 and

140¼ using either a C600AD Active Display (configured

to PILOT) or a CP600 Corus Programmer. Please refer

to the relevant unitÕs instruction manual for more

details.

2.5.2 Autotacking In Wind Mode (Section 3.2)

The Tillerpilot will only allow an autotack if the

apparent wind is less than 90¼ i.e autotack is disabled

if sailing downwind. The Tillerpilot will tack the

vessel through to the same apparent wind angle, but

on the opposite tack.

NB - In this mode, the Tillerpilot automatically pre

vents tacking in the wrong direction eg, If on Port

tack, only an autotack onto Starboard tack will be

possible.

In all cases, the autotack is confirmed by a long

beep, with the relevant Port or Starboard LED flash-

ing during the course change.

2.5.3 NavLock (Section 3.1)

The autotack facility is disabled while in NavLock

mode.

STBY

TACK

STBY

AUTO

STBY

TACK

STBY

AUTO

TACK

Fig 2.5 - Initiating Starboard autotack

2 Operation

2.1 General

The keypad of the Tillerpilot has been designed to be as

simple and intuitive to operate as possible. Using only five

keys (Fig 2.1) it is possible to perform precise course

adjustments and navigational functions.

The unit powers up in Standby Mode, indicated by a flash-

ing LED next to the STBY AUTO key (Fig 2.2). The two

direction LEDs above the Port and Starboard keys are

always dimly lit, which provides night illumination for the

keypad. All functions are confirmed audibly by a ÒbeepÓ

and visually by the LEDs, so the status of the unit can

always be confirmed at a glance.

2.2 Autopilot Mode

While in Standby Mode, the pushrod can be manually dri-

ven in and out by pressing the arrowed Port and

Starboard keys, which allows Òpower steeringÓ of the ves-

sel.

To engage Autopilot Mode, simply press the STBY AUTO

key, and the Tillerpilot will lock onto the current course.

The LED next to this key will stop flashing and remain per-

manently lit as long as the pilot is in Autopilot Mode (Fig

2.3). To lock the pilot onto the desired course, either steer

the correct course and then engage the autopilot, or engage

the autopilot and then adjust the heading until the correct

course is being sailed (see section 2.3). If the STBY AUTO

key is pressed and held, the pilot will beep a second time

and lock onto the previously used heading (this feature

will not be available if the unit has just been switched on).

2.3 Adjusting Course

While in Autopilot Mode, precise course adjustments can

be easily made. By pressing either the Port or Starboard

key once, a 1¼ course adjustment will be made in the spec-

ified direction. This is confirmed by a single beep, and the

relevant Port or Starboard LED will flash once. By press-

ing and holding the key, 10¼ course adjustments will be

made, confirmed by a double beep and a double flash of

the Port or Starboard LED (Fig 2.4).

N.B - When in NavLock Mode (see section 3.1), the

Tillerpilot will gradually return to the original track.

Page 8 Page 9

2.5 Tiller Movement (Gain)

The Tillerpilot will apply adjustments to the tiller in

order to compensate for heading variations, the amount

of movement being proportional to the heading error

detected by the compass unit. The amount of move-

ment is set by the Gain (sometimes referred to as the

rudder ratio).

The Gain setting can be likened to driving a car - at high

speeds, very little wheel movement is necessary to steer

the car (LOW gain). When driving at slow speeds, more

wheel movement is necessary (HIGH gain).

Fig 2.6A shows the effect of setting the Gain too low: the

vessel takes a long time to return to the correct heading.

Fig 2.6B shows the ideal setting, where errors are quick-

ly corrected. Fig 2.6C illustrates the effects of setting the

Gain too high, which causes the vessel to oscillate

around the correct heading. Excessive Gain (Fig 2.6D)

creates a tendency to instability of course, leading to

increasing error.

The Gain setting can be adjusted manually - see section

4.2. Additionally, if Speed data is available (through

Corus or NMEA), the Tillerpilot will automatically opti-

mise the Gain within the manually set value.

2.6 Seastate

In rough weather, more variations in heading will be detected by the Tillerpilot due to the heavy

seas yawing the vessel. If no account of this was taken, then the Tillerpilot would be overworked,

causing unnecessary strain on the unit and excessive drain on the batteries. The Tillerpilot will

continuously monitor corrections applied to the tiller over the course of a voyage, and allow a

Òdead bandÓ within which the boat can go off course without corrections being made. The dead

band is automatically set and updated by the Tillerpilot to give the best compromise between

course holding and battery consumption. However, this can be manually set if so desired. To man-

ually adjust the Seastate, please refer to section 4.4.

2.7 Autotrim

Under differing conditions a tiller bias (sometimes known as standing helm or rudder trim) is

applied in order to steer a straight course. An example is when sailing close hauled where the ves-

sel will normally pull into the wind, and the helmsman applies a standing helm to leeward in order

to maintain course. The amount of this standing helm varies according to factors such as strength

of wind, boat speed, sail trim and amount of sail set. If no account of these were taken, then the

vessel would tend to veer off course, or pull round head to wind if sailing close hauled.

The Tillerpilot continuously monitors the average course error and applies a bias to the tiller to

compensate until the optimum condition is reached. This bias or standing helm is applied gradu-

ally, so as not to upset the normal performance of the Tillerpilot. Thus, it may take up to a minute

or so to fully compensate after changing tack. Once optimum trim is reached, the pilot will still

monitor for changes in the prevailing conditions and update the trim accordingly.

3 Advanced Features

The TP20 and TP30 Tillerpilots contain many

advanced features, one of which is the ability to

accept course data from a variety of sources apart

from the internal fluxgate compass, including

NMEA compatible navigational receivers (GPS etc)

and windvanes. An external compass option is also

available via the inbuilt Corus network connection,

which can also accept wind and navigational data

from the relevant Corus active transducers.

Section 3 describes in detail the advanced facilities

available with the Tillerpilots when interfaced with

other equipment.

3.1 NavLock™

The TP20 and TP30 has a built in NMEA interface

which allows direct connection with NMEA0183

compatible equipment such as GPS and Plotters.

Once interfaced with navigation equipment via

NMEA, the Tillerpilot can steer using data from this

source in addition to the internal compass, allowing

a highly accurate course to waypoint.

To access NavLock the unit must be in Autopilot

Mode. Simply activate a waypoint or route pro-

grammed into the navigational receiver, and press

the NAV key. The LED next to the NAV key will

light and the Tillerpilot will steer to the first way-

point, using Cross Track Error and Bearing To

Waypoint information from the navigational receiv-

er to maintain an accurate course.

On arrival at the target waypoint an intermittent

alarm will sound. As a safety feature to avoid an

unexpected course change, the next waypoint will

not be automatically loaded until the NAV key is

pressed. When the vessel reaches the final way-

point, the Tillerpilot will continue its current course

under Compass Mode.

Note that some of the standard key stroke functions

may have a different effect in NavLock than when

in Compass Mode. Please refer to sections 2.5.2 and

2.5.3

NMEA

TP20/TP30

NMEA Compatible

Equipment

NAV

STBY

TACK

STBY

AUTO

Fig 3.1 - Interfacing via NMEA

STBY

NAV

TACK

STBY

AUTO

NAV

Fig 3.2 - Initiating NavLock

ABCD

Fig 2.6 - Effects of Gain setting

3.3 Using External Compass

Normally, the accurate operation of a self-con-

tained autopilot is very difficult on a ferrous

hulled boat (steel, ferro cement etc) as the hull

will affect the bearing read by the internal flux-

gate compass.

Although the TP20 and TP30 Tillerpilots oper-

ates using a built-in fluxgate compass, they have

the facility to accept data from an external source

- the Navico Corus ATC600 active compass.

On a steel or ferro hulled boat, the correct loca-

tion for the ATC600 would be on the mast,

between 1 and 2 metres above the deck (Fig 3.5).

On a non-ferrous hulled boat, the ATC600

should be situated low down ,as near the centre

point of the boat as possible, but away from any

sources of magnetic interference such as speak-

ers etc.

The ATC600 is connected to the Tillerpilot via

the Navico Corus Network connection. Note

that in order to operate, the ATC600 will require

a separate 12v power supply through a CPC02

or CPC05 power cable.

Once connected, the Tillerpilot will automati-

cally accept bearing data from the ATC600

active compass transducer in preference to the

internal fluxgate compass.

ATC60

TP20/30

CMC-TP

CPC05 12v

Fig 3.5 - Using TP20 / TP30 with external compass

Page 11Page 10

3.2 Sail To Wind

The TP20 and TP30 are able to sail to the apparent

wind angle rather than a compass course, using

wind data via the NMEA interface. The use of a

Simrad IS15 wind instrument is recommended.

If no wind information is present, the Tillerpilot

will not enter Sail To Wind Mode.

To select Sail To Wind Mode, the unit must be in

Autopilot Mode. To enter Sail To Wind Mode, press

and hold both the Port and Starboard keys togeth-

er until a double beep is heard (Fig 3.3). Both the

Port and Starboard LEDs will flash simultaneously

while the pilot is in Sail To Wind Mode.

To switch back to Compass Mode, simply press and

hold the Port and Starboard key together again

until a double beep is heard.

While in Sail To Wind Mode, engaging the autopilot

will lock the Tillerpilot onto the current apparent

wind angle being sailed. Any course adjustments

made will be relative to the apparent wind angle,

rather than the compass heading as when in

Compass Mode. Please note that some of the stan-

dard key stroke functions may have a different

effect in Sail To Wind Mode than when in Compass

or NavLock Mode. Refer to section 2.5.3 for more

details.

Note that NavLock cannot be selected while in Sail

To Wind Mode - to initiate, first return to Compass

Mode.

STBY

NAV

TACK

STBY

AUTO

Fig 3.3 - Selecting Sail To Wind Mode

STBY

NAV

TACK

STBY

AUTO

TACK

STBY

NAV

TACK

STBY

AUTO

TACK

Fig 3.4 - Initiating Port Autotack in Sail To Wind

Mode

TACK

Page 13Page 12

4 Configuration

4.1 Porthand Mounting

Although the Tillerpilot is factory preset for

Starboard side mounting, it is possible to reconfig-

ure it for mounting on the Port side of the cockpit,

to facilitate easy installation on most types of

yacht.

With the power off, hold down the NAV and

TAC K keys and switch on the power. Either the

Port or Starboard LED will illuminate, depending

on the current mounting configuration. Press the

PORT key to select Port side mounting. The Port

LED only will remain illuminated to indicate selec-

tion. Confirm selection and exit to Standby Mode

by pressing NAV. (Fig 4.2)

To select Starboard mounting, repeat the above

procedure, but press the Starboard key instead of

Port.

STBY

NAV

TACK

STBY

AUTO

TACK

NAV

STBY

NAV

TACK

STBY

AUTO

STBY

NAV

TACK

STBY

AUTO

NAV

Fig 4.2 - Configuring for Port mounting

POWER ON

NAV

STBY

TACK

STBY

AUTO

Fig 4.1 - Starboard and Port mounting options

TACK

STBY

NAV

TACK

STBY

AUTO

Fig 4.3 - Entering Calibration Mode

Fig 4.5 - Increasing Gain level

4.2 Calibration Mode

To adjust the Gain and Seastate settings of the Tillerpilot

(refer to sections 2.5 & 2.6), it is necessary to enter

Calibration Mode, which can be done whilst the Tillerpilot

is in either Standby or Autopilot Mode.

Press and hold the TAC K key, followed by the NAV key

(Fig 4.3). The Starboard green LED will illuminate to indi-

cate that the pilot is in Gain Mode. To toggle between Gain

and Seastate Mode, press the TAC K key (Fig 4.4). The Port

red LED will illuminate to indicate Seastate Mode.

4.3 Adjusting Gain

When Gain Mode is selected (indicated by the Starboard

green LED illuminated), the Nav LED will flash and a

repeated sequence of beeps will be heard. The number of

flashes and beeps in the sequence indicates the level of the

Gain setting.

To increase the Gain press the Starboard key the required

number of times, to a maximum level of 9 (Fig 4.5). To

decrease the Gain press the Port key the required number

of times, to a minimum level of 1.

For example, if the Gain was set at 4 (indicated by a

sequence of four flashes of the Nav LED and four beeps),

and the Gain needed to be increased to 7, pressing the

Starboard key three times would adjust the Gain accord-

ingly. The Nav LED would then flash seven times and

seven beeps would be heard.

4.4 Adjusting Seastate

When adjusting Seastate (indicated by the Port red LED

illuminated), the Seastate level is indicated by the number

of audible beeps and flashes of the Nav LED. No beeps or

flashes of the Nav LED indicates that the Tillerpilot is set

to automatic seastate (see section 2.6).

To switch from Manual to Auto Seastate and increase the

Seastate level, press the Starboard key the required num-

ber of times to a maximum level of 9. To decrease the

Seastate press the Port key the required number of times,

to a minimum level of 0- which will switch the Tillerpilot

back to Auto Seastate.

To confirm Gain/Seastate settings and return to Standby

Mode, press the NAV key.

STBY

TACK

STBY

AUTO

Fig 4.4 - Toggling between Adjust Gain and

Seastate

TACK

STBY

NAV

TACK

STBY

AUTO

TACK

NAV

STBY

TACK

STBY

AUTO

460mm (18in)

90º

595mm (23 in) Pushrod at mid-stroke

Horizontal

PB30 8mm

PB60 105mm

PB90 135mm

38mm

Pedestal Bracket (PB)

Page 15

Fig 5.2 - Installation, cross section

Fig 5.3 - Installation , plan view

Page 14

5 Installation

5.1 Fitting Tillerpilot

The Tillerpilot is a very sophisticated piece of equipment, and therefore in order for it to function

to its full capabilities, it is essential that it is installed correctly. Please read this section thorough-

ly before attempting installation and use.

The Tillerpilot should be installed so that it is level (horizontal - Fig 5.2), and 90¼ to the tiller when

it is amidships and the pushrod is in the midstroke position (Fig 5.3). The pilot is factory preset to

be mounted on the Starboard side as shown, but this can be reconfigured for Port side mounting

(see section 4.1).

The dimensions given in Figs 5.2 & 5.3 should be adhered to as far as possible, especially Fig 5.2.

Some tolerance on the distance from tiller stock (Fig 5.3 dimension) is permissible, but the

Tillerpilot may require a Gain adjustment to compensate (see section 4.3). If the dimension given

in Fig 5.2 is not practical for the vessel to which it is to be fitted, a range of fitting accessories are

available to facilitate correct installation. Please refer to section 6.4.

The Tillerpilot houses an internal fluxgate compass, and should therefore be mounted away from

sources of magnetic interference, such as the vesselÕs steering compass. The minimum safe dis-

tance is 1M (3Ft).

The Tillerpilot is mounted using a supplied tiller

pin and mounting cup, which allows the unit to

be fitted and stowed easily.

To fit the tillerpin, drill a 6.3mm (1/4 in) hole in

the tiller (ensure that this is on the centreline of

the tiller and is vertical). Drill to a depth that

allows only the top 18.0mm (3/4 in) to protrude.

Fix in place using an epoxy adhesive.

To fit the mounting cup, drill a 12.7mm (1/2 in)

hole into the cockpit seat and mount so that only

the flange protrudes. Ensure that the cup is a

tight fit (use an epoxy adhesive), and is support-

ed over its entire depth. If necessary, reinforce

the underside of the cockpit seat with hardwood

or marine plywood.

NOTE - Due to the high loads exerted, do not

fit the Tillerpilot to the mounting cup and pin

until the adhesive has completely set.

Tillerpin

Tiller

18.0mm

(0.75in)

Mounting Cup

Hardwood

Reinforcing

Fig 5.1 - Tillerpin & mounting cup

Page 17

The Tillerpilot is linked to the ATC600 external com-

pass via a connecting lead CMC-TP (not supplied),

which is wired to the Tillerpilot bulkhead socketÕs

Corus input (terminals 3 & 4), and then plugged into

the Compass.

The CMC-TP is used purely to supply Corus data to

the Tillerpilot, and does not carry any power supply.

The ATC600 must always have itÕs own 12v power

supplied via a CPC02 or CPC05 Corus Power Cable.

5.3 Interfacing Via NMEA

The TillerpilotÕs state-of-the-art electronics include a

built-in NMEA processor, which means that

NMEA0183 compatible equipment can be connected

directly to the Wheelpilot, without any need for a sep-

arate interface unit (Fig 5.6).

Due to the vast number of different manufacturers and

models of navigational equipment, Simrad cannot

guarantee correct operation and installation of this

equipment. Therefore, before connecting any equip-

ment to the Tillerpilot it is important that the unitÕs

manual is referred to with regard to interfacing via

NMEA.

When connecting to the TillerpilotÕs NMEA interface,

two wires are used - a DATA wire and a COMMON

(Com) wire. These should be connected to the six-pin

bulkhead socket as follows:

It should be noted that some manufacturerÕs equip-

ment does not have a dedicated Common connection.

In this case, the DATA connection will usually be

labelled NMEA OUT, and the NMEA Common con-

nection on the Tillerpilot (terminal 5) should be con-

nected directly to 0v (terminal 2). If in any doubt,

refer to the manufacturer, or SimradÕs Product

Support department for advice.

If a navigational receiver (GPS etc) is connected to the

Tillerpilot, it can extract the NMEA sentences neces-

sary for the NavLock function to operate. Other func-

tions such as Sail To Wind may also be available if

NMEA0183 compatible equipment transmitting the

correct NMEA sentences is interfaced.

12v DC

NMEA

NAV

STBY

TACK

STBY

AUTO

Fig 5.6 - Interfacing to Tillerpilot via NMEA

Pin No. Wired To

5 NMEA-Com (-)

6 NMEA-Data (+)

12V Red

0V Black

NMEA Data

NMEA Com

(Green)

(White)

CMC-TP

External

Compass

Cable

Page 16

Fig 5.4 - Six pin socket connections - rear view

5.2 Electrical Installation

The Tillerpilot operates from a 12v DC supply. It is

supplied with a high quality six pin waterproof

connector ready fitted, which is used to supply the

power, NMEA and (where appropriate) Corus

data. The mating 6-pin bulkhead socket is also

supplied with the unit.

The six pin bulkhead socket should be mounted in

a convenient position close to where the Tillerpilot

is to be fitted, and wired in accordance with Fig 5.4.

Important - If the vessel has more than one sepa-

rate battery bank, when connecting the Tillerpilot

to the power supply always ensure that the pilot

and all interfaced equipment - whether Corus or

NMEA - are connected to the same battery bank,

even though they each have independent con-

nections to the switch panel. This is to avoid a

possible voltage drop between the interfaced

equipment which would render the equipment

inoperative.

* Mount the bulkhead socket on a vertical surface

to prevent standing water gathering around or in

the socket. Always fit the protective cap when the

pilot is not plugged in.

* Use a suitable gauge cable for the run from the

socket to the supply (see Fig 5.5).

* Connect to the vesselÕs switch panel via a 10 Amp

fuse or breaker.

* Do not fit other electronic or electrical equipment

to this cable, or Òtap intoÓ the supply from a near-

by cable - always wire each piece of equipment to

its own breaker in the switch panel.

* Ensure all wire ends are tinned, and any connec-

tions are well made. Poor contact will result in loss

of thrust from the Tillerpilot and slower speed of

response.

* If in any doubt, employ a qualified engineer to

install the equipment.

Length of

Cable Run

Under 4M

(13Ft)

4-8M

(27Ft)

Cross Section

Area

1.5mm2

2.5mm2

Conductor

Type

30/0.25

50/0.25

AWG

Fig 5.5 - Cable selection table

Pin No. Wired To

1 +12v DC

20v

(3 Corus Green)

(4 Corus White)

5 NMEA0183 Com

6 NMEA0183 Data

Page 19

6 Appendix

6.1 Advice On Operation

The Simrad Tillerpilot when used correctly can maintain as good a course, on most points of sail as

a skilled helmsman, with the advantage that they never lose concentration where a human may

begin to show lapses of concentration after as little as ten minutes.

There are certain circumstances however, where a human pilot has the advantage in being able to

anticipate events which no autopilot can sense, typically in a heavy following sea. The

following advice should improve efficiency when sailing using Tillerpilot:

1. When sailing close to the wind, it is easy to forget to trim the mainsail, allowing excessive weath-

er helm to build up. Where a human helmsman would quickly complain, the autopilot will strug-

gle on, and the boat will be sailed less efficiently. Whereas a human normally likes to feel some

weather helm, this is not necessary for the functioning of the Tillerpilot. Power consumption, wear

and drag will be greatly reduced if the mainsail is freed or reefed a little sooner than normal when

sailing manually.

2. It is also advisable when sailing close hauled to set a course a few degrees free of that normally

sailed under manual control, to avoid luffing into the wind.

3. When running dead downwind, a human pilot can see visual signs warning him if the boat is

about to gybe, which the Tillerpilot cannot sense. Therefore, when under autopilot it is advisable

not to sail as close to the gybe as you may do when sailing manually.

4. When broad reaching or running fast, particularly with quartering waves, a helmsman will nat-

urally apply periodic larger angles of helm than when beating or sailing slowly. This is the equiv-

alent of increasing rudder Gain, and it may be a good idea to adjust the Gain on the Tillerpilot.

Many people prefer to find a compromise setting which is used for all sailing, but with practice it

can be optimised for different conditions e.g. low for motoring in a calm sea or high for running

fast. If the Gain is set too low, the boat will yaw because insufficient rudder is applied in time; if

the gain is too high, the boat will continually overcorrect on each deviation, increasing power con-

sumption.

5. The Tillerpilot is a highly advanced piece of equipment - as such, it is a valuable aid to enjoy-

able sailing. However, it would be a mistake to become complacent. As with all electronic navi-

gational equipment, it is an aid to navigation and should not be used as a substitute for conven-

tional navigational practice. Remember - Maritime Law* requires that you keep a good look out

at all times.

*IMO International Regulations for Preventing Collisions at Sea, Part B Rule 5 (1972)

Page 18

5.4 NMEA Sentences Received

The NMEA0183 information required for full functionality whilst in NavLock is as follows -

Cross track error

Bearing to destination waypoint

Arrival at waypoint indication

Magnetic Variation

This information is extracted from the following NMEA0183 sentences -

NOTE - The Cross Track Error (XTE) information has a maximum value of 1.21 Nautical Miles. If

the XTE exceeds this while using NavLock, the Wheelpilot will sound an alarm, exit NavLock

Mode and return to Compass Auto Mode.

The TP20 & TP30 also extracts the apparent wind angle from the following NMEA0183 sentences -

VWR Apparent Wind Speed & Angle

MWV Wind Speed & Angle

XTE Cross Track Error and Arrival At Waypoint

BWC Bearing To Destination Waypoint and Arrival At Waypoint (Great Circle)

BWR Bearing To Destination Waypoint and Arrival At Waypoint (Rhumb Line)

APA Cross Track Error, Bearing To Destination Waypoint and Arrival At Waypoint

APB Cross Track Error, Bearing To Destination Waypoint and Arrival At Waypoint

RMA Speed Over Ground (SOG) & Magnetic Variation

RMB Cross Track Error, Bearing To Destination Waypoint and Arrival At Waypoint

RMC Speed Over Ground (SOG) & Magnetic Variation

Page 21

6.3 Auto Compass Calibration

Although the Tillerpilot internal compass is extremely

accurate, for long distance sailing it may be necessary to

calibrate the compass, to compensate for any deviations

caused by objects surrounding it on board the vessel.

With the vessel motoring along slowly (2-3 knots) in

calm conditions and the Tillerpilot in Standby Mode,

press the Starboard key a number of times to induce a

slow clockwise rotation of the vessel. Press and hold the

TAC K key, followed by the Port and Starboard keys

simultaneously to enter Auto Compass Calibration

Mode (Fig 6.1). The Port and Starboard LEDs will both

light. Allow the vessel to turn through a minimum of

11Ú4 turns (450¼) in approximately two minutes, during

which time the fluxgate compass will automatically cali-

brate itself.

If the rate of turn or the boat speed is too high, the Port

LED will flash (FIg 6.2) indicating that it is necessary to

either slow the boat or decrease the angle of turn. If the

rate or turn or boat speed is too slow the Starboard LED

will flash, indicating that it is necessary to either increase the boat speed or increase the angle of

turn. A short beep will indicate that the calibration has been successful, and the Tillerpilot will

return to Standby Mode. If the calibration has been unsuccessful after a period of four minutes, a

long beep will sound. Try again carefully following the above directions.

Note that this function is only available for auto calibrating the internal fluxgate compass. If an

ATC600 external compass is being used, this is calibrated using a separate display head. Please

contact Simrad Product Support for more information.

6.4 Spares and Accessories

The following spare parts can be ordered from your local authorised Simrad Technical Dealer.

Please quote the relevant part number when ordering.

E02648

Tiller Pin

E00099

Mounting Cup

E00111

Push Rod End

170153

Bulkhead Socket

170090

Protective Cover

for Bulkhead

Socket

TACK

Fig 6.1 - Auto Compass Calibration

TACK

Fig 6.2 - Rate of turn too fast

Page 20

6.2 Fault Finding

Symptom

When engaged, the pilot

immediately applies a large

helm angle and increases

course error.

After functioning normally

course is suddenly lost and the

Tillerpilot goes into Standby

Mode.

Helm is hard over and alarm is

continuously on.

Power socket is live, but pilot

not on.

Loss of course under Sail To

Wind Mode.

Cannot select Sail To Wind

Mode.

Cannot select NavLock Mode.

Autotack function not

working.

Pilot exits NavLock before

waypoint is reached.

Probable Cause

Tillerpilot is configured for Porthand

setting but installed on Starboard side

(or vice versa).

* Power interrupted briefly, or low

voltage.

* Cable used to socket too small.

* Intermittent connection.

* Steerage way insufficient to control

course, or sails are aback. Pulsing is a

correct safety feature when tiller is at

full travel.

* Socket is wired incorrectly.

* Apparent wind has become too light

to give a consistent direction.

* Masthead unit is not connected.

* Corus system is not switched on.

* Required NMEA sentence not being

transmitted.

* Navigational receiver not connected.

* No waypoints have been

programmed.

* Wrong NMEA format is being used.

* Pilot is in NavLock Mode.

* Pilot is in Steer To Wind Mode and

a) apparent wind is >90¼

b) autotack being attempted is in

the wrong direction.

* Cross Track Error has exceeded 1.21

Nm.

Remedy

* Refer to section 4.1.

* Increase size of cable.

* Check all connections.

* Charge batteries.

* Uprate batteries.

* Reset the vessel on course

and re-engage pilot

* Check wiring of socket

(see section 5.2).

* Change to Compass

Mode.

* Fit ATM601 Masthead

Unit.

* Check Corus Monocable

connections.

* See section 5.5.

* Check NMEA interface

connections.

* Check NMEA0183 format

is being transmitted by

navigational receiver.

* Exit NavLock.

* Luff up until apparent

wind is less than 90¼.

* Reset the vessel on course

and re-engage NavLock.

Page 23

6.5 Service & Warranty

Your Tillerpilot should seldom need servicing, but will benefit from an application of silicone or

Teflon grease to the pushrod and connectors each season, and by keeping the connectorÕs protec-

tive cover in place when not in use.

The unit is guaranteed for 12 months from date of retail sale. If it is necessary to have the unit

repaired, return it carriage prepaid to the agent in the country of purchase with a copy of the

receipted invoice showing the date of purchase. Where possible, return all the components unless

you are certain that you have located the source of the fault. If the original packing is not avail-

able, ensure that it is well cushioned in packing; the rigours of freight handling can be very differ-

ent from the loads encountered in the marine environment for which the unit is designed.

For Worldwide Warranty details, please refer to the Warranty Card supplied with this unit.

A list of official worldwide Simrad dealers is included in the Warranty Card.

STBY

TACK

STBY

AUTO

HR20

Hand Remote Unit.

ATC600

External

Compass

CMC-TP

Corus interface cable

(5M)

Page 22

Accessories

Height

Tiller Brackets

Push Rod Extensions

PRE30:GY

PRE60:GY

PRE90:GY

PRE120:GY

PRE150:GY

PRE300:GY

Part No. Length

30mm (1.18")

60mm (2.36")

90mm (3.54")

120mm (4.72")

150mm (5.90")

300mm (11.81")

TB30

TB60

TB90

TB120

Part No. Height

30mm (1.18")

60mm (2.36")

90mm (3.54")

120mm (4.72")

Length

PB30

PB60

PB90

CB1 135-240mm

(5.31-9.44")

Part No Height / Length

30mm (1.18")

60mm (2.36")

90mm (3.54")

Height

Length

Cantilever Bracket CB1

Pedestal & Cantilever Brackets

Manufacturer:

Simrad Navico

Star Lane, Margate

Kent CT9 4NP

United Kingdom

Telephone: +44 (0) 1843 290290

Telefax: +44 (0) 1843 290471

E-Mail: simrad-navico.co.uk

WORLDWIDE MANUFACTURER OF MARINE ELECTRONICS

TP2030 TP30 Tillerpilot2030

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