ComNav P4 Installation and Operation Getting Started
Document PN 29010100 V1r0 - 76 -
held. Pressing and maintaining this button while in AUTO, NAV or WORK mode
allows you to avoid obstacles in the vessel’s path, by turning to starboard.
Releasing the button automatically recovers your original Heading, Track or
Angle.
6) COMMAND (CMD) button. This is a multi-function button:
• On all vessels this button invokes WORK mode while in AUTO or NAV
modes. Double-pressing the button will bring up (or cancel) the Work
mode menu.
• Pressing this button when an alarm condition occurs in the autopilot,
suppresses the alarm.
• This button is also used during Dockside Setup to initiate the automatic
learning features of the autopilot.
7) COURSE CHANGE knob. This is used in various ways:
• In POWER STEER or AUTO mode, one ‘click’ changes the rudder angle
by approximately 1 degree. A quick spin moves the rudder approximately
10 degrees.
• The knob is also used to change parameters in the various menus.
8) POWER STEER button. Pressing and holding this button places the autopilot
into POWER STEER mode. This mode allows you to steer the vessel by using
the COURSE CHANGE knob, or by pressing and holding the PORT or
STARBOARD ARROW buttons. A double-press of this button brings up (or
cancels) the Power Steer mode menu.
9) AUTO button. Pressing and holding this button places the autopilot into AUTO
mode, and then the autopilot will automatically control your vessel’s steering
system so as the keep the vessel on the Heading that you select with the
COURSE CHANGE knob. Obstacles can be avoided by using the PORT and/or
STARBOARD ARROW buttons. A double-press of this button brings up (or
cancels) the Auto mode menu.
10) NAV button. Pressing and holding this button places the autopilot into NAV
mode, and then the autopilot will steer your vessel from NMEA data provided by
a GPS, Chart-plotter, or some other compatible Navigation System. A double-
press of this button brings up (or cancels) the Nav mode menu.
Operating Modes and Menus
Your ComNav P4 Advanced Autopilot System has four basic operating modes, known as
STANDBY, POWER STEER, AUTO, and NAV; a fifth operating mode, known as WORK, is
a sub-mode of AUTO and NAV modes, and is available on all vessel types except sailboats.
Each of these modes has its own set of parameters that you can adjust, to configure and
fine-tune how your P4 system behaves in the respective mode. These parameters are stored
in the system’s non-volatile memory; you can view and change them with the Control Head,
via sets of menus that appear on the LCD screen.
There is one more menu, called Setup, which is used for setting up a number of the
parameters that are common to all the operating modes.
In total, there are six different menus. The menus of the four basic operating modes
(STANDBY, POWER STEER, AUTO, and NAV) are accessed by using the respective mode
buttons: the STANDBY/ON/OFF button, the POWER STEER button, the AUTO button, and
the NAV button. The WORK button is used to access the WORK or modes’ menus.
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