Sitex SP-110 Instruction Manual

SP-110 Autopilot
OPERATION

SP-110-SS30 2
Warning!
WHEN USING THE AUTOPILOT AN ADEQUATE WATCH SHOULD BE
MAINTAINED AT ALL TIMES.
THE AUTOPILOT MUST BE PLACED IN MANUAL MODE WHEN EVER
THE VESSEL IS STATIONARY
THE AUTOPILOT SHOULD NOT BE USED WHILE NAVIGATING IN
RESTRICTED WATERS
SP-110 System Block Diagram
*Dashed line only applicable for SP-110R when rudder feedback unit (RFU) is
required.
Refer to Installation & Service Manual for information on installation of autopilot
system and interconnection diagrams.
SP-110
Display
Compass
Drive
Unit
RFU

SP-110-SS30 3
Basic Operation –Non Rudder Feedback Version
Switch on power to autopilot. Display shows boat heading - example H123. MANUAL
light (LED) will be on. Steer vessel to course.
To engage autopilot for automatic steering:
Press AUTO. Display will show heading for autopilot to steer - example A123. AUTO
light (LED) will be on.
Press ◄ to adjust course to port. Press ► to adjust course to starboard
To disengage autopilot for manual steering:
Press AUTO. Display will show boat heading. MANUAL light on
To set rudder response (rudder angle ratio)
Press MODE. Display will show a number - example r 05.
Press ► to increase rudder setting. Press ◄ to decrease setting.
3 seconds after adjustment pilot will return display to normal.
To switch LCD back light on or off.
Press MODE MODE
Press ◄ or ► to turn light on. Press ◄ or ► again to turn light off.
To return pilot to normal continue pressing MODE.
Waypoint Steering
Note: Before engaging waypoint steering mode, a route or destination must
be programmed and selected in the GPS plotter for the autopilot to follow
To engage waypoint steering:
Press both AUTO and MODE buttons together. GPS light will be on.
The autopilot will lock on to “course to steer” as requested by the GPS plotter.
Displays shows bearing to waypoint (BTW).
If no GPS data is received by the SP-110, “NO GPS DATA” alarm will function. Both
GPS and ALARM lights will flash on and off.
To disengage GPS mode:
Press AUTO button. Pilot will return to MANUAL operation.
.

SP-110-SS30 4
Basic Operation –Rudder Feedback Version
Switch on power to autopilot. Display shows boat heading - example H123. MANUAL
light (LED) will be on. Steer vessel to course.
To engage autopilot for automatic steering:
Press AUTO. Display will show heading for autopilot to steer - example A123. AUTO
light (LED) will be on.
Press ◄ to adjust course to port. Press ► to adjust course to starboard
To disengage autopilot for manual steering:
Press AUTO. Display will show boat heading. MANUAL light on
To set sensitivity (course deadband):
Press MODE. Display will show a number - example: S 04
Press ◄ to decrease sensitivity. Press ► to increase. Low number = narrow deadband.
High number = wide deadband
3 seconds after adjustment pilot display reverts to normal.
To set rudder response (rudder angle ratio):
Press MODE - MODE. Display will show a number - example r 05
Press ► to increase rudder setting. Press ◄ to decrease setting.
Low number = small rudder angle. High number = large rudder angle.
3 seconds after adjustment pilot display reverts to normal.
To view rudder angle:
Press MODE - MODE –MODE:
Display shows rudder angle position –example Pt 02 (2º port rudder)
Display will change with rudder movement.
To return pilot to normal continue pressing MODE
To switch LCD back light on or off:
Press MODE - MODE –MODE –MODE:
Press ◄ or ► to turn light on. Press ◄ or ► again to turn light off.
To return pilot to normal continue pressing MODE.
For waypoint steering refer page 3.

SP-110-SS30 5
Jog Steering
Switch on power to autopilot. Display shows boat heading - example H123. MANUAL
light (LED) will be on.
To operate steering:
Press ◄ to turn rudder to port. Press ► to turn rudder to starboard.
NOTE. Do not press either ◄ or ► for more than 4 seconds as the rudder
may drive hard over into the stops. Driving the steering into the physical
stops will damage your autopilot
Wind Operation
ATTENTION! Wind operation is available only if wind data is supplied from a wind
system which provides NMEA output - $**MWV. If the wind data is interrupted for
more than 10 seconds, the pilot returns to basic operation mode ( MANUAL).
Switch on power to autopilot. Display shows boat heading - example H123. MANUAL
light (LED) will be on. Steer vessel to course.
To engage Wind mode:
Press ◄and ► buttons together. Display shows relative* wind direction –example
P030 - this indicates wind direction at 030º on the port bow. –example S030 - this
indicates wind direction at 030º on starboard bow.
*Depending on boat speed. If boat has speed forward then wind is apparent
Steer boat to initial tack course.
Press AUTO to engage autopilot.
Example 1. Wind direction is 045º on port side display shows P045. Press ◄ for 3
seconds. Boat will alter course (tack) until wind direction is at 045º starboard and
display will show S045. Total tack angle is 90º.
Example 2. Wind direction is 035º on starboard side display shows S035.
Press ► for 3 seconds. Boat will alter course (tack) until wind direction is at 035º on
port side and display will show P035. Tack angle is 70º.
Tack angle can be adjusted in small amounts by pressing ◄ or ► momentarily. Each
press alters angle by 1º in relevant direction. Maximum tack angle recommended is for
wind direction of 045º port to 045º starboard.

GPS as a Heading Source (no Compass)
A compass is not used with this system.
Display will show COG heading from GPS –example C123. If a compass is
reconnected the display will change to compass heading –example H123.
Refer to Basic Operation pages 3 or 4 to use the pilot.
Basic Trouble Shooting
Display does not indicate
Check supply voltage is 12 volts DC (Red and Black)
Check in-line fuse
Display shows heading but rudder does not move when AUTO is selected
Check MANUAL light is on.
Press AUTO. Check AUTO light is on
Check voltage at the motor connections (yellow & yellow/black wires) when ◄ or
► is pressed several times.
Check motor or pump set wiring
Check motor brushes
Check the hydraulic system:
1. Ensure there is sufficient hydraulic fluid.
2. Purge the system of possible air locks / contamination.
3. Ensure that any flow restricting valves are not completely closed.
4. Check all pipe connections for leaks.
Autopilot cannot be used in Wind Steering Mode
Check Wind Speed & Direction system is switched on
Check wire connections from wind system to autopilot
If any fault cannot be found, consult your dealer.
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