18 RayPilot 650 Control Unit - Owner’s Handbook
2 Using the RayPilot 650
2.7 Response control
Adjusting response – Type 150G/400G
The main way you can adjust the performance of Type 150G/400G
(GyroPlus) autopilot systems is by changing the response level. This
is the only user adjustment you should need to make to the autopilot
on a regular basis.
The response level controls the relationship between the autopilot’s
course keeping accuracy and the amount of helm/drive activity.
Type 150G and 400G autopilot systems have 9 levels of response:
• level 1 gives the least pilot activity to conserve power, but may
compromise short-term course-keeping accuracy
• levels 4 to 6 should give good course keeping under normal
operating conditions – with crisp, well controlled turns but
without being over-aggressive
• level 9 gives the tightest course keeping and greatest rudder
activity, but may lead to a rough passage in open waters as the
autopilot may ‘fight’ the sea
When you require extra tight course keeping (e.g. for pilotage in
confined and sheltered waters), increase the setting. If you want to
minimize drive activity and conserve battery power, decrease
the setting.
You can adjust the default response level in Calibration mode. This
determines the default power-up response level. However, when
using your autopilot on a day-to-day basis, you can make temporary
adjustments to the response level. By doing this you can match
autopilot performance to different conditions.
Temporary changes to response – Type 150G/400G
With these points in mind, you should use the following procedure to
make temporary adjustments to the response level when required:
1. Display the
RESPONSE screen by pressing RESP for 2 seconds.
2. Use the
▲ (NAV) or ▼ (LIGHTS) key or course change knob to
change the response level.
3. Wait for 5 seconds to return to the previous display.
Note: You will lose these temporary changes to response level
whenever the system is powered off. You can make permanent
adjustments in Calibration mode.
81013_4.book Page 18 Wednesday, July 25, 2001 11:04 AM
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