5
1 Introduction
1.1 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!
1.2 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 fluid dampened compass with high gimbaling angles 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 Servo Unit A-1500 is designed for sailing and power boats from 35 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.
The Autopilot Servo Unit A-1510 is designed for sailing and power boats from 26 ft. (8 m.)
to over 50 ft. (15 m.), depending on drive units used. Hydraulic drive units provide precise
control with low power consumption. 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.
1.3 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 andamount
of correction are user adjustable to suit different boats under various sea conditions.
INTRODUCTION
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