Drive Settings - Raymarine p70 Installation And Operation Instructions Manual

Drive settings

Drive settings are dependant on connected autopilot system.
The Drive Settings menu can be accessed from: Menu > Set-up > Autopilot Calibration > Drive Settings.
Note: Not all options are available when Calibration Lock is turned On.
Item Description
*Rudder gain Rudder gain is a measure of how much helm the autopilot will
apply to correct course errors.
A higher setting results in more rudder being applied. The rudder
gain setting is set automatically as part of the Auto Learn process.
*Counter rudder Counter rudder is the amount of rudder the autopilot system
applies to try to prevent the vessel from yawing off course.
A higher counter rudder setting results in more rudder being
applied
Rudder damping On autopilot systems with a rudder reference transducer, you can
set the rudder damping to prevent autopilot 'hunting'.
Increasing the rudder damping value reduces hunting. When
adjusting the value, increase the setting one level at a time until
the autopilot stops hunting. Always use the lowest acceptable
value.
Rudder Damping
Rudder limit If a rudder reference transducer is fitted, this screen is used to
set the limits of the rudder control just inside the mechanical
end stops, and thus avoid putting the steering system under
unnecessary load. This should be set when commissioning the
system. The limit should be set to approximately 5 degrees less
than the maximum rudder angle.
Note: If no rudder reference has been fitted you MUST
ensure that adequate provision is made to prevent the
steering mechanism from impacting the end stops.
Rudder offset This specifies the offset from amidships (zero adjustment).
Reverse rudder ref This reverses the phase of the rudder reference display.
Note: This option is not available unless you have a rudder
reference transducer fitted.
Note: This option is not available on SeaTalk systems, so
you would need to reverse the RED and GREEN wires on the
Rudder Reference connection to the course computer.
*Auto Trim The Auto Trim setting determines the rate at which the autopilot
system applies 'standing helm' to correct for trim changes caused
by varying wind loads on the sails or superstructure. The default
Auto Trim is set as part of the Auto Learn process.
If you need to change the setting, increase the Auto Trim one
level at a time and use the lowest acceptable value:
• If the autopilot system gives unstable course keeping or
excessive drive activity with a change in the heel angle,
decrease the Auto Trim level.
• If the autopilot system reacts slowly to a heading change due
to a change in the heel angle, increase the Auto Trim level.
• If the Auto Trim level is too high, the vessel will be less stable
and snake around the desired course.
Auto Turn This setting defines the amount of course change when
performing an auto turn.
Note: This option cannot be changed when connected over
SeaTalk.
Note: This option is only available on motor vessels.
Set up menu options
Options
• 1 — 9
• 1 — 9 Do not set to 0.
• 1 — 9
• 2 (default)
• 10º — 40º
• 30º (default)
• -9° to 9°
• Port
• Starboard
Setting
• Off
• On
Adjustment
• 1 — 4 1 = Slowest, 4 = Fastest
• 1 (default)
• 10º — 125º
• 90º (default)
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