Si-tex SP-110 Installation And Service

SP-110 Autopilot

INSTALLATION AND SERVICE

www.si-tex.com

SI-TEX SP-110 – SS30 2 10/25/2011

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SI-TEX SP-110 – SS30 3 10/25/2011

Index

WWW.SI-TEX.COM....................................................................................................... 1

INDEX ......................................................................................................................... 3

WARNING! .................................................................................................................. 4

SP-110 AUTOPILOT SYSTEM ...................................................................................... 5

BLOCK DIAGRAM OF FULL SYSTEM ............................................................................ 5

INSTALLATION OF SYSTEM COMPONENTS: ................................................................. 6

DISPLAY UNIT ................................ ................................................................ ............ 7

COMPASS .................................................................................................................... 8

COMPASS MOUNTING ................................................................................................. 8

RUDDER FEEDBACK UNIT........................................................................................... 9

RUDDER FEEDBACK / GPS WIRING DIAGRAMS .......................................................... 9

RUDDER FEEDBACK INSTALLATION DIAGRAM ................................ ......................... 10

OCTOPUS MECHANICAL DRIVE RFU CONNECTIONS ................................................ 10

GPS WIRING CONNECTIONS ..................................................................................... 11

HYDRAULIC REVERSING MOTOR CONNECTION ........................................................ 11

MECHANICAL REVERSING MOTOR CONNECTION ..................................................... 11

MOTOR CONNECTIONS ............................................................................................. 12

SOLENOID VALVE USE .............................................................................................. 13

INITIAL OPERATIONAL SETTINGS ............................................................................. 14

MOTOR DIRECTION – AUTOMATIC SET UP ............................................................... 14

MOTOR DIRECTION – MANUAL SET UP .................................................................... 14

SENSITIVITY ............................................................................................................. 15

RUDDER RATIO ........................................................................................................ 15

BACKLIGHTING......................................................................................................... 15

SET RUDDER LIMITS ................................................................................................ 15

COMPASS HEADING ................................................................ ................................ .. 16

COMPASS CALIBRATION ........................................................................................... 16

COMPASS ALIGNMENT ............................................................................................. 16

TECHNICAL ADJUSTMENTS ....................................................................................... 16

SP-110 DEFAULT SETTINGS: ..................................................................................... 17

SETTING UP YOUR GPS UNIT .................................................................................... 18

SP-110 ALARMS ....................................................................................................... 18

OFF COURSE ALARM ................................................................................................ 18

GPS ALARM ............................................................................................................. 19

DEFINITION OF TERMS .............................................................................................. 19

OVERVIEW OF OPERATION ....................................................................................... 19

TROUBLE SHOOTING ................................................................................................ 21

SCHEMATIC DIAGRAM .............................................................................................. 22

WARRANTY .............................................................................................................. 23

ADDITIONAL INFORMATION REFER TO SI-TEXWEBSITE .. 24

SI-TEX SP-110 – SS30 4 10/25/2011

Warning!

 THE AUTOPILOT IS A NAVIGATIONAL AID; AN ADEQUATE

WATCH MUST BE MAINTAINED AT ALL TIMES WHEN
AUTOPILT IS IN USE.

 THE AUTOPILOT MUST BE PLACED IN MANUAL MODE WHEN

THE VESSEL IS STATIONARY AS THE SYSTEM WILL CONTINUE
TO DRIVE THE RUDDER TO THE END OF ITS TRAVEL AND
DAMAGE TO THE SYSTEM CAN RESULT. (NO RFU SYSTEM
ONLY)

 IT IS STRONGLY RECOMMENDED THAT THE AUTOPILOT NOT

BE USED WHILE NAVIGATING IN RESTRICTED WATERWAYS AS
WATER CURRENTS, WIND CHANGES OR RADIO TRANSMITTER
INTERFERENCE CAN ENDANGER YOUR OWN OR OTHER
VESSELS.

 IF A GPS IS CONNECTED TO THE SYSTEM AND USED AS THE

HEADING SOURCE AT A SPEED OF ONE KNOT OR LESS THE
SYSTEM WILL DISENGAGE FROM AUTO.

SI-TEX SP-110 – SS30 5 10/25/2011

SP-110 Autopilot System

The SP-110 Autopilot control system comprises the following units: -

 SP-110 display and control head.
 SI-TEX E-compass
 Rudder Feedback Unit (SP-110R only).

In addition the SP-110 has to be connected to a drive unit which controls the rudder
actuator system in order to complete the full autopilot system. The actuator system
provides the physical movement to the rudder responding to the direction of control
signals provided by the SP-110. A rudder actuator system comprises one of the
following: -

 Hydraulic system with helm pump and ram
 Mechanical steering system

The autopilot should be connected to a:

- Reversing motor / pump set connected into the existing hydraulic steering

system; or

- Reversing mechanical drive unit connected to the existing steering

mechanism

Block Diagram of full system

*Dashed line (RFU) only for applicable for SP-110R.

The SP-110 display provides full control of the autopilot system and indicates different
modes for heading, course to steer and rudder angle.

The system requires a supply voltage of 12 Volts DC.

SP-110
Display

Compass

Drive

Unit

RFU

(SP-110R)

SI-TEX SP-110 – SS30 6 10/25/2011

Installation of System Components:

Ensure you have all the components of the autopilot.

Tools required:

 Screwdrivers – flat blade and Philips
 Side cutting pliers
 Wire strippers
 Spanners (various) or adjustable spanner
 70mm hole saw
 Power drill + assortment of drill bits
 Multi meter (DVM)
 Ancillaries such as tape, connecting block, screws, cable ties, etc.

Access for wiring must be provided. Cables have to be run to the power switchboard,
display, compass, rudder feedback (if fitted) and drive unit.

All wiring should be kept as far as possible from radio aerials and aerial cables to
prevent interference to the radio and to prevent transmitted signals from the radio
influencing the SP-110. As no steel is used in the SP-110 display, there is negligible
effect on a steering compass.

The compass must be mounted a minimum distance of 1 metre form any boat compass,
radios, speakers or other products with magnetic properties to avoid interference.

The SP-110 must have a direct connection to power supply via a 15 amp circuit breaker
or a 15 amp fused circuit and an isolating switch.

SI-TEX SP-110 – SS30 7 10/25/2011

Display Unit

Position:

The SP-110 Head unit should be mounted in a position accessible to the steering
position and protected from direct rain or salt water

 Select a dry position
 For in dash mounting cut a 70mm (2.5”) hole (an optional mounting bracket is

available and may be used for display mounting – see your supplier)

 Drill mounting screw holes
 Mount the display using screws supplied (304 SS – 6G)
 Fit dome plugs to cover screws
 Ensure motor (yellow) and clutch (green) wires are not touching together

before connecting power to the SP-110

 Connect red wire to + 12 volts DC
 Connect black wire to – 12 volts DC

SP-110 Display (Rear) Wiring Diagram

SI-TEX SP-110 – SS30 8 10/25/2011

Compass

Take care when handling the compass as it is a sensitive piece of equipment. The
compass position is the most important item in the installation of the autopilot. Good
course holding is dependent on the compass being free from magnetic interference and
excessive rolling or pitching.

Position:

 Select a dry position free from magnetic interference. (Note other side of

bulkheads and deck heads for magnetic type objects)

 Avoid positions near radios, speakers, aerial cables or any other current

carrying cable.

 Mount the compass horizontally with the arrow (bow) pointing in the same

direction as the boat’s bow. Use non magnetic screws (304 grade stainless
steel)

 Run cable to SP-110 display position (keep away from other cables)
 Connect compass cable to SP-110 compass socket

.

Compass Mounting