Raymarine autopilot control unit - Manual (Page 18)

Chapter 1: Introduction 1
Chapter 1: Introduction
1.1 Overview
The ST7000 Plus is a SeaTalk ® compatible autopilot control unit. It
can be used either as the control unit for a Type 100/300 Course
Computer, or as a repeater, to allow control of autopilot types such as
the ST4000 Plus, from a secondary location. It can also repeat
instrument data by means of a programmable selection of Data Pages.
The autopilot system uses data transmitted from Autohelm SeaTalk
instruments:
• Wind information from a wind instrument can be used for wind
trim steering without the need to install a separate vane.
• Track information, from a navigation instrument, provides the
ability to steer from waypoint to waypoint.
• Boat speed from the Speed instrument provides optimum track-
keeping performance.
The ST7000 Plus can also be used with any navigator (GPS, Decca,
Loran) transmitting NMEA 0183 data.
There are five operating modes:
Standby: Autopilot disengaged.
Auto: Autopilot engaged and locked onto a heading.
Track: Autopilot maintains a track between two waypoints
created using a navigation system.
Wind: Autopilot maintains a course relative to an apparent
wind angle.
Manual: Autopilot power steers rudder using joystick control.
When the ST7000 Plus is being used to repeat instrument data, “pop-
up pilot” pages are displayed whenever a change in autopilot control is
made. The duration of pop-up pilot pages is user-adjustable.
The ST7000 Plus also provides access to autopilot features such as:
• Automatic tack facility, which can be used in Auto and Wind
modes.
• Automatic compass deviation correction.
• Northerly/Southerly heading compensation.
• Automatic heading deadband – seastate control.
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