Robertson AP11 Autopilot
90 20220513E
CLTCH.OVL. Clutch circuit overload
(current >> 2A)
Check clutch or bypass coil for possible
short circuit. Also check cable for short
circuit.
UNIT TEMP. Excessive temperature in
Junction unit (>>75°C),
possible long term
overload.
1. Switch off autopilot
2. Check for backload in Drive
unit/steering system.
3. Check that Junction unit specifications
matches Drive unit.
W/A SHIFT
Wind shift exceeding 15°,
causing heading
reference change of same
magnitude.
Automatic reset when within limit.
5.2 NMEA interface check
The NMEA interface check is a more detailed analysis of the
incoming NMEA data used in the AP11. Access the
Installation Menu by pressing the < and > buttons
simultaneously and proceed to the NMEA CHK display by
pushing the > button. Enter the first menu item by pressing
MODE and toggle between each menu item by pressing the
< or > button, as shown on the flow chart below.
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