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Summary of Contents for Si-tex SP-120
- Page 1 SP-120 Autopilot INSTALLATION AND SERVICE Software Version P-33 www.si-tex.com...
- Page 2 BLANK PAGE SI-TEX SP-120 – SS34 08/04/2015...
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Page 3: Table Of Contents
Index WARNING! ........................4 SP-120 AUTOPILOT SYSTEM ................... 5 INSTALLATION OF SYSTEM COMPONENTS: ............ 6 ......................7 ISPLAY ........................8 OMPASS ................... 9 UDDER EEDBACK GPS W ..................11 IRING ONNECTIONS ............11 YDRAULIC EVERSING OTOR ONNECTION ............. 11 ECHANICAL... -
Page 4: Warning
INTERFERENCE CAN ENDANGER YOUR OWN OR OTHER VESSELS. IF A GPS IS CONNECTED TO THE SYSTEM, THE AUTO MODE WILL NOT ENGAGE BELOW A SPEED OF • ONE KNOT AND WILL DISENGAGE FROM AUTO WHEN THE VESSEL SLOWS TO ONE KNOT. SI-TEX SP-120 – SS34 08/04/2015... -
Page 5: Sp-120 Autopilot System
• In addition the SP-120 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-120. -
Page 6: Installation Of System Components
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-120 must have a direct connection to power supply via a 15 amp circuit breaker or a 15 amp fused circuit and an isolating switch. -
Page 7: Display Unit
Display Unit Position: The SP-120 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 –... -
Page 8: Compass
Mount the compass horizontally with the arrow (bow) pointing in the same direction as the boat’s bow. Compass cannot be • mounted upside down! Use non-magnetic screws (304 grade stainless steel) Run cable to SP-120 display position (keep away from other cables) • Connect compass cable to SP-120 compass socket •... -
Page 9: Rudder Feedback Unit
Fit link arm from rudder feedback to tiller – adjust for correct angle • Route cable to SP-120 display position Connect rudder feedback cable to SP-120 rudder socket • When installation is complete, slowly move the steering by hand to ensure: •... - Page 10 Note: Pin locations are relative to pin 1 which always has a dot adjacent. Note: The rudder feedback is factory aligned. The arm should not be removed or loosened the shaft as this will affect the “O” ring seal. Octopus Mechanical Drive RFU Connections NMEA-0183 Interfacing wires SI-TEX SP-120 – SS34 08/04/2015...
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Page 11: Gps Wiring Connections
With SP-120 in MANUAL yellow motor wires are both at + 12 VDC Yellow/black wire will give negative voltage out when port rudder movement is required. Motor direction can be checked with SP-120 in MANUAL by pressing ◄ or ► once power has been connected to the SP-120 Mechanical Reversing Motor Connection •... -
Page 12: Motor Connections
Motor Connections SI-TEX SP-120 – SS34 08/04/2015... -
Page 13: Solenoid Valve Use
Solenoid Valve use, Wire the solenoid valves to Yellow and the 12 volt power feed and Yellow with Black stripe and 12 volt power feed on second terminal block. Ensure 12 volt is via a suitable fuse, less than 5 amps. SI-TEX SP-120 – SS34 08/04/2015... -
Page 14: Initial Operational Settings
Initial Operational Settings The initial set up of the SP-120 is done once the system installation is complete and power has been connected to the SP-120 display control. The set up can be done automatically or manually Automatic installation set up determines the output polarity for motor direction and rudder limit setting. This method can only be used where a rudder feedback is fitted. -
Page 15: Rudder Ratio
• Press either ◄ or ► again to turn the backlight off • Compass Heading • Switch on power to SP-120 Check display heading – example H 123 • Check this heading against a known accurate bearing • If display reading differs from known heading *, the compass can be calibrated. -
Page 16: Technical Adjustments
Technical Adjustments These procedures are used to adjust internal parameters of the SP-120. Each routine can be set or reset and can be displayed individually To enter the procedures: • Place SP-120 in MANUAL MODE Pres MODE key until display shows P-41 (if the firmware version is 41) •... -
Page 17: Adjusting The Pid Control
This value will be zero when the vessel is not turning, and will oppose to the turn movement when it happens. The adjustment of the gain for this parameter is explained in the sections “Technical Adjustments” and “Parameters List” (parameter 8) above; SI-TEX SP-120 – SS34 08/04/2015... -
Page 18: Sp-120 Default Settings
7. Integral Control Gain ......5 8. Derivative Control Gain ..... 3 A BOD Correction Factor ...... 15 B Reserved ..........0 C Wind damping ........0 F Rate of Turn Tolerance ....... 15 G Control Calculation Period ....6 SI-TEX SP-120 – SS34 08/04/2015... -
Page 19: Set Up Of The Gps Unit
GPS manual. The GPS unit must be set up to output “NMEA 0183” data on a pair of wires, which are connected to the SP-120 unit via the rudder feedback connector. The data generated must include at least one of the following: •... -
Page 20: Overview Of Operation
Press arrow button to operate steering in that direction Check that rudder moves in correct direction Check Rudder direction follows change request Check Course change provides sufficient Rudder movement Check magnetic heading display on SP-120 10. Return steering to centre SI-TEX SP-120 – SS34 08/04/2015... -
Page 21: Trouble Shooting
SP-120 does not move rudder when AUTO is selected Confirm SP-120 display is showing heading information. • Check voltage is present at the SP-120 motor connections (Yellow and yellow with black stripe) when AUTO is selected, and • a course change applied. -
Page 22: Schematic Diagram
Schematic Diagram SI-TEX SP-120 – SS34 08/04/2015... - Page 23 SI-TEX SP-120 – SS34 08/04/2015...
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Page 24: Warranty
The owner is also responsible for providing reasonable maintenance and weather protection of the equipment. SI-TEX shall not be liable for damage or loss incurred resulting from the use and operation of this product. SI-TEX reserves the right to make changes or improvements to later models without incurring the obligation to install similar changes to equipment already supplied. - Page 25 Sitex Customer Support E-mail address: customerservice@si-tex.com Sitex Main Office Address: 25 Enterprise Zone Drive, Ste 2 Riverhead, NY 11901 Technical Support is available from 9:00 AM to 5:00 PM Eastern Standard Time, Monday through Friday. SI-TEX SP-120 – SS34 08/04/2015...
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