English
AUTOPILOT
8-6
1 Welcome aboard!
Thank you for choosing a Nexus Autopilot. Through this manual we would like to help
you install and operate your Nexus product. We are convinced that you will appreciate
the useful functions. To get the most out of your Nexus product, please read through
this manual carefully before you start your installation. If you see us at a show, please
stop by and say hello.
Good luck and happy boating!
1.1
Capabilities
Accuracy, reliability and simplicity of use, are key features of the Nexus microprocessor
controlled Autopilot. Whether the need is for minimised fuel consumption, improved
navigational accuracy or simply more enjoyable yachting, the Nexus Autopilot is the
right navigational aid to provide precision steering under all sea conditions. Due to the
very stable HPC compass, the built in Rate sensor and automatic trim feature, this
Autopilot is suitable for sailing and powerboats. User adjustable settings make it
possible to fine tune each boat, yet factory default settings and automatic calibration
allow simple operation with minimal operator input.
The Nexus Autopilot is capable of operating either as a "Stand Alone" Autopilot, or as a
"Network" application by connecting it to the Nexus Network. Many options are
available, including GPS and wind transducers, Nexus Remote Control instrument and
other Nexus digital and analog instruments.
The Autopilot Course Processor R-1600 is designed for sailing and power boats from
25 ft. (11 m.) to over 160 ft. (50 m.), depending on drive units used. Hydraulic drive
units provide precise control with low power consumption. Connection can also be
made to solenoid valves of electro-hydraulic steering systems, allowing use on very
large boats. Hydraulic linear drives provide powerful and accurate control when
connected to mechanical steering systems and also provide independent hydraulic
steering for added safety.
Power steering through the instrument’s push-buttons may be used to avoid heavy
wheel effort when manoeuvring. Alarms for off course, off track or watch alarm are
included with provision for an optional external alarm buzzer.
1.2
Principle of operation
Any difference between the set and actual course, is compared along with rate of
change and trends in change*, to drive the pumpset motor or solenoid valve. The,
rudder is moved as necessary to return the boat back on course. The sensitivity to
course errors and amount of correction are user adjustable to suit different boats under
various sea conditions.
NB * (PID control, terminology as known by control technicians,
P = proportional part, I = integral part and D = derived part)
