Raymarine AUTOHELM 5000 User Manual

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Any reference to Raytheon or

RTN in this manual should be

interpreted as Raymarine.

The names Raytheon and RTN

are owned by the

Raytheon Company.

Installation and Operating Handbook

Autohelm”

ANNOGUE

.;-:

AUTOHELM

5000

The Autohelm 5000 is a modern high performance autopilot specifically developed for sailing and motor vessels of up to 40’(13m)

LOA.

It is exceptionally easy to operate and its advanced micro-electronic control circuit gives outstanding steering performance.

The Autohelm 5000 is distinguished by its

automatic course locking capability which permits change-over from manual to automatic

steering by a single push-button control. From then on the original heading is rigidly maintained by the automatic trim system which continuously monitors trim changes and offsets

the mean wheel position to compensate. In addition, the rate of in proportion to the rate at which the vessel moves off course, giving the smooth steering capability of an experienced helmsman.

wheel

rotation is regulated

Autohelm

5000 the

The basic system comprises a Drive Unit and Control Unit inter-connected by a pluggable multi-core cable. A complete range of optional remote control accessories are available which are also pluggable to the Control Unit. After fitting the system it is only necessary to make a single adjustment to the

Control Unit response range to the character of a particular vessel.

The Autohelm 5000 is exceptionally easy to

install and prepare for sea trials. Sound installation however is vital if the system’s high standard of performance and reliability is to be achieved. The installation notes should be followed carefully and in cases where special advice may be needed you are encouraged to contact our Technical Sales Department where expert assistance is always available.

in‘,order

to match the system’s

I .O

SYSTEM DESCRIPTION

The Autohelm 5000 is a modular system

that can be built up from a minimum number of

standardised units to match the individual

requirements of a wide range of sailing and power vessels. The rudder drive system may be chosen from a range of rotary, linear and hydraulic drive units to best suit the vessel’s particular steering system.

The most basic installation (Fig. 1) consists of a control unit inter-connected by a pluggable cable system to a drive unit. This installation would be suitable for a motor vessel with a single enclosed steering position, and where no requirement exists for remote control facilities. Hand-held remote control unit type DO73 may be plugged directly into the Control Unit auxiliary socket.

DRIVE UNIT

A simple remote control installation is illustrated in Fig. 2. The auxiliary control unit repeats the basic working controls of the main control unit and is suitable for extending autopilot control to a secondary steering position. Alternatively, in the case of a sailing yacht for example, the auxiliary control unit provides a watertight cockpit control enabling the control unit to be mounted in a protected position below deck.

The full remote control system (Fig. 3) provides the addition of a hand-held remote control unit.

DIRECT REMOTE CONTROL (D073)

CONTROL UNIT

(OPTION)

.20

AMP FUSE

DC SUPPLY

Fig. 1 Basic System

20 AMP FUSE

DC SUPPLY

DRIVE UNIT

Fig. 2 Basic Remote Control System

DRIVE UNIT

CONTROL UNIT

20 AMP

FUSE

SUPPLY

Fig

3 Full Remote

Contrd

System

1 .l CONTROL SYSTEM

1.1 .l CONTROL UNIT

The control unit is common to all installations and is provided with six metres of multi-core cable with pre-connected plugs and sockets to connect to the drive unit. It houses the main control circuit PCB together with the automatic course following compass system. The control unit case is splash proof, but not watertight, and is, therefore, intended for mounting in a dry and protected position. Two sockets are provided on the rear case for connecting the drive unit and remote control system.

REMOTE SOCKET

AUXILIARY

CONTROL UNIT

HAND HELD

REMOTE CONTROL

(0093)

Rotary controls for course alteration, rudder response and sea state are grouped on the control unit

facia,

together with the push-button primary working controls. A secondary gain control is inset into the rear case to allow adjustment of the system’s rudder response range to match the widely differing steering characteristics of both planing and displacement vessels. The control unit is suitable for use on 12 volt systems.

I-- -1

142mm (5

-i

.1.2

REMOTE CONTROL

ACCESSORIES

1 .I .3

AUXILIARY CONTROL UN IT

Autopilot control may be transferred to the auxiliary control unit by depressing the Remote

push-button on the main control unit auxiliary control unit is watertight and designed for flush mounting in severely exposed positions.

It is provided with six metres of cable terminated in a waterproof plug for direct connection to the control unit. A connector is situated on the rear case for connecting handheld remote control deck socket.

.1.4

REMOTE CONTROL UNITS

The remote control is a hand-held unit that enables the autopilot to be overriden and the vessel to be power steered from anywhere on board. The unit is fitted with a six-metre flying lead, Type DO73 is suitable for direct connection to the Control Unit auxiliary socket. Type DO93 is fitted with a waterproof plug for connection to a waterproof deck socket.

facia.

The

Auxiliary control Unit DO69

35mm I1

38”)

56mm (2.2”)

(3.2”) 81 mm

1 OOmm

86mm (3 38”)

1.15

REMOTE SOCKET

The remote socket provides a watertight socket for the hand-held remote control. The

socket is supplied with 6 metres of 3 core cable

terminating in a

the Auxiliary Control Unit.

.1.6

CABLE EXTENSION

The cable extension facilitates the lengthening of all multi-core cables in six-metre increments. The extension cable is terminated with compatible waterproof connectors for insertion into the cable harness in the positions shown in Fig. 3.

plugfor

direct connection to

1 .I .7 CATALOGUE NUMBERS

CONTROL SYSTEMS Control Unit

Auxiliary Control Unit

Remote Control

Direct Remote Control Remote Socket

Cable Extension

DRIVE SYSTEMS Rotary

Linear Hydraulic

2068

DO69 DO93 DO73 DO91

DO59

12v

only

Z069 2070 2071

Hand Held Remote Control Unit Direct Remote Control

Remote Socket DO91

(D093t (0073)

1.2 DRIVE SYSTEMS

Mechanical steering systems may be driven by either a rotary or linear drive unit. Some steering systems are fitted with an autopilot drive shaft,

and in such cases the choice of a rotary drive system is straightforward. In general, if a drive shaft exists and lost motion does not exceed 2% of total rudder movement, the rotary drive unit becomes the most economic choice. In all other cases the linear drive unit will provide the simplest installation since it may be connected directly to a tiller link on the rudder stock. Total independence of the mechanical steering linkage also allows the linear drive unit to be used to power steer the vessel in the event of steering linkage failure, and this is an important safety feature. In addition, minimisation of

working parts improves the overall efficiency of the rudder drive system and reduces lost motion to an absolute minimum.

All vessels with hydraulic steering systems

will require a hydraulic drive unit.

1.2.1 ROTARY DRIVE UNIT

The output shaft is driven by a continuously rated servo motor via an efficient reduction gearbox. The gearbox is dry lubricated to permit operation in any attitude. A fail safe friction clutch within the gear train engages automatically when the autopilot is switched to Duty and will disengage instantly even under extreme load when the autopilot is switched

to Set.

Supply voltage Peak output torque

Maximum shaft speed Power consumption (typical average) Suitable for vessels up to

175mm

(6.88”)

12 volts

240lb.in. (27Nm)

rpm

1 S-3 amps

40ft.

LOA (12m)

2 Holes: 12Smm (0.5”) diameter

r----i

1.2.2 LINEAR DRIVE UNIT

The output ram of the linear drive unit is driven

by a declutchable re-circulating ball leadscrew which enables the drive unit to .be permanently coupled to the rudder stock via a simple crank or tiller arm. The drive is automatically engaged by means of an internal friction clutch when the autopilot is switched to Duty and will disengage instaltly even under heavy load when the autopilot is switched to Set or Off.

25mm

.o”) 207mm (6.15”)

Supply voltage Peak thrust Maximum stroke speed

Maximum stroke Overall length at mid stroke

Tiller arm length

(+35” rudder)

Maximum rudder torque Power consumption (typical

average) Suitable for vessels up to

51 mm (2.0”)

12 volts

550lbs (225Kg)

1.2in./sec. (30mm/sec.)

12in.

(300mm)

27.5in.

(700mm)

Oin. (260mm)

500lb.in.

(570Nm) 1

Z-3

amps

40ft.

LOA (12m)

! 1

1.2.3 HYDRAULIC DRIVE UNIT

The hydraulic drive unit consists of a precision gear pump with integral valve block driven by a continuously rated servo motor. A special pressure balance valve corrects the effects of hydraulic slip and isolates the pump from the steering circuit when the autopilot is not energised.

700mm lZ7.5”)

Supply voltage Regulated peak pressure Flow control

Peak flow rate (unloaded) Maximum ram capacity

Power consumption (typical average)

Overall length

_ ,- _

--+j$--

mm (0.7”) RADIUS

260mm

(10.0”)

12 volts

4501b.in2

(30 bar)

integral pilot check and pressure balance valve sys tern

40in3/mm

(650cc/min)

1 5in3 (25Occ)

2-3.5 amps

9.5in.

(240mm)

/L/

240mm (9.5”) 117mm (4.6”)

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