30
SmartPilot X-Series Commissioning & Setup Guide
Rudder limit
The rudder limit screen is displayed only if a rudder reference transducer is fitted.
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 SPX system
(see page 10).
Rudder gain
Rudder gain is a measure of how much helm the SPX system applies to correct
course errors. The higher the setting the more rudder will be applied.
The rudder gain setting is set automatically as part of the AutoLearn process
(see
page 14
).
.
Counter rudder
Counter rudder is the amount of rudder the SPX system applies to try to prevent the
boat from yawing off course. Higher counter rudder settings result in more rudder
being applied.
The default counter rudder gain is set as part of the initial seatrial AutoLearn process
(see
page 14
).
Rudder damping
On SPX 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 damping one level at a time until the autopilot
stops hunting. Always use the lowest acceptable value
.
AutoTrim
The AutoTrim setting determines the rate at which the SPX system applies ‘standing
helm’ to correct for trim changes caused by varying wind loads on the sails or
superstructure.
Screen Text
Range
RUD LIMIT
10° to 40° in 1° steps
Screen Text
Range
RUDDER GAIN
1 to 9
Screen Text
Range
COUNT RUD
1 to 9 (Do NOT set to 0)
Screen Text
Range
RUDD DAMP
1 to 9
81307_1.book Page 30 Wednesday, December 19, 2007 11:17 AM
