ComNav Commander P2 & P2VS Installation & Operation Basic Operations
Document PN 29010074 V4.1 - 114 -
When a menu is being displayed, there is an icon at the top of the screen which looks like the
C
C
O
O
U
U
R
R
S
S
E
E
C
C
H
H
A
A
N
N
G
G
E
E
knob, but with a line drawn through it. This is a reminder that the knob is
not available for its normal function of changing the boat’s course – because the knob is now
being used to change parameter values.
The autopilot’s mode indicator letter continues to be displayed in menus. The current mode
may not be the same as the menu (since all menus can be accessed in any mode). For
example, in the figure above both the mode (`S´) & the menu are
STANDBY
– but the mode
could be any of the others: `P´ (
POWER STEER
), `A´ (
AUTO
), etc.
All menus – except Dockside Setup – have a time-out feature that triggers after about
10 seconds, if no button presses, or movements of the
C
C
O
O
U
U
R
R
S
S
E
E
C
C
H
H
A
A
N
N
G
G
E
E
knob, are detected
during that time-out interval.
When a menu times out, the display reverts to the previously active display, just as though
you had double-pressed the mode button again.
Rudder Angle Indicator (RAI)
At the bottom of the screen in all operating modes is the Rudder Angle Indicator (an example
can be seen in Figure 72 on page 116).
•
On a P2 system, or a P2VS with an RFU fitted, the RAI shows the current position of
the boat’s rudder, as measured by the RFU (see pages 54 & 70).
•
On a P2VS without an RFU, the RAI shows the estimated position of the rudder.
A “V” in a small box is shown at the right end of the RAI, to indicate that the autopilot
is using the
Virtual Rudder Feedback
feature.
The estimated rudder position on a P2VS may not always be accurate!
Please refer to the Cautions on page 143 for more information.
The current or estimated rudder position is shown by a solid bar extending from the centre
(rudder Dead Ahead, i.e., at 0°) to the right for Starboard rudder, or to the left for Port. The
numerical scale above the bar (in degrees) is expanded around the centre, and compressed
at the ends. On colour Control Heads, Starboard is shown in a green bar, and Port in red; on
monochrome, the bar is always black. In the figure on page 116, the rudder is about 4.5° to
Port.
The maximum length of the rudder position bar is defined by the rudder travel limit values
detected or entered during setup.
The thin solid bar below the rudder position bar shows the rudder travel limits (see page 122
for details of the limits); in Figure 72, all the limits are 40°.
On a P2VS without an RFU, the position bar does not appear in STANDBY
mode. The rudder travel limits bar is shown, but is always the default full
length (40° to either side), no matter the limits entered during setup.
Whenever the autopilot is moving the boat’s rudder, to Port or Starboard, a small “rudder
movement” arrow symbol will be shown at the corresponding end of the RAI.
Alarm Clear
Whenever an alarm or error message occurs on the Commander P2, an audible alarm will
sound, both at the SPU & at the Control Head, and a message will be displayed on the LCD.
The alarm will remain activated until the condition that caused it is remedied, or the alarm is
cleared manually by you.
•
To clear the alarm manually, press the
F
F
n
n
button once.
If the condition that caused the alarm remains, the alarm will reappear after approximately 20
seconds.
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