Chapter 4: Customising the ST5000 Plus
37
Rudder gain
This is the “power-on” rudder gain setting and should be adjusted to the
setting which gives the best steering performance as described in
Chapter 6.
Response
This is the power-on response setting. The response level can be
changed during normal operation (see section 3.3) or via the Response
Data Page, if this is set for display (see section 2.5).
Turn limit
This limits the rate of turn of your vessel when under autopilot control.
The value must be within the range 5 to 20°. For sailboat applications it
should be set to 20°.
Align rudder (Rudder Offset)
Set this option if your system includes a rudder reference unit.
1. Manually centre the helm. The reported rudder angle is indicated
on the rudder bar graphic at the bottom of the screen.
2. Adjust the offset, using the +1 and -1 keys, until the rudder
position is shown as central on the rudder bar. The offset must be
within -7° to +7°.
3. If required, move the rudder reference unit and repeat this
procedure.
Rudder limit
The rudder limit function enables you to set the limits of autopilot
rudder control just inside the mechanical end stops, and thereby avoid
putting the steering system under unnecessary load. The adjustment
range is from 15° to 40° of rudder movement.
If your boat is fitted with a rudder reference transducer, set the autopilot
rudder limit as follows:
1. Manually set the rudder to each end stop (port and starboard), and
in each case use the rudder bar on the display, to determine the
end-stop angle.
136_3c04.p65 14/06/99, 10:1637
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