Raytheon Anschütz Pilotstar D, Manual

Page: 69 / 166

PILOTSTAR D
Autopilot
2--27
Edition: March 13, 2009
3060.DOC012
2.3.1 Optimum Adjustment by Test Runs -- Operating Mode HEADING CONTROL --
The optimum adjustment can be ascertained by several heading changes of e.g. 10

.
-- Set the steering mode selector to position AUTO:
The operating mode HEADING CONTROL is active.
If no steering mode selector is available, the key Auto ON / OFF is to be actuated.
Starting out from the basic adjustment, the following current parameters can be
adjusted:
Speed SPEED (manual or Log)
Rate of turn RoT

/MIN to 60

/min
For the rudder limitation, high values are to be used in order that a run--in beha-
viour may be obtained where there is no limitation in the heading control circuit.
-- Test run
Observe the LCD displays and the HEADING--to--SET HEADING deviation
300

305

310

300

305

310

300

305

310

Graph 1
The ship turns into the new heading
with overshoots.
Measure:
Increase CNT.RUD. by one step, or
decrease RUDDER by one step.
Repeat heading change and observe
the control behaviour.
HEADING SET HEADING
Heading
change Ti
m
e
Graph 2
The turns into the new heading too
sluggish.
Measure:
Decrease CNT.RUD. by one step, or
increase RUDDER by one step.
Repeat heading change and ob-
serve the control behaviour.
Graph 3
Shows the optimum
parameter adjustment.
HEADING SET HEADING HEADING SET HEADING
Ti
m
e
Ti
m
e
Fig. 2--3: Optimization of the Current Parameters
HAND AUTO
Auto
On/Off