Raymarine autopilot control unit - Manual (Page 85)

68 ST7000 Plus Autopilot Control Unit Owner’s Handbook
Operating Sense
The operating sense defines the direction the helm will be applied
when a course change key is pressed or the vessel goes off course.
Check the operating sense as follows:
1. In Standby mode, move the wheel to produce a starboard turn, and
check that the rudder angle displaymoves to the right. If the rudder
angle display moves to the left, the red and green wires from the
rudder reference transducer must be reversed.
2. Press auto.
3. Press the +10 key. The helm should move to produce a turn to
starboard.
4. If the helm produces a turn to port, reverse the motor connections
at the course computer.
5. If the helm overshoots and has to drive back or starts to hunt back
and forth, you need to increase the Rudder Damping, described
under Dealer Setup in Chapter 4.
Navigation Interface (GPS, Decca, Loran)
If the ST7000 Plus is interfaced to a navigator, via its NMEA data port,
the interface can be checked by displaying the default Data Pages.
These are
XTE, BTW, and DTW.
Press disp to display the first page, and check that the expected data is
displayed. Press disp again to check each successive page.
If dashes are displayed instead of data values, the cause could be one or
more of the following:
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