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Autopilot FAIL message
Reading last disconnect reason or
mode change reason:
In case of an automatic AP disconnect, the
reason will be displayed automatically as a
"FAIL" code on the AP display(s). To read it
again later, or to read the reason for an auto-
matic mode change, press and hold the OFF-
button for 3 seconds.
For older display units, select the "Config"
mode on a display unit (any unit in the sys-
tem). Press the right button to read out the
last FAIL code of the DRIVE BOX. Note: when
switching off the bus power, any code stored
inside the diplay units will be lost; a random
number (e.g. 33) will be displayed after power-
ing up again, until a code is received from the
autopilot.
01 OFF due to over current
02 OFF due to over temperature
03 OFF due to rudder sensor extreme
04 OFF: CB on DRIVEBOX has dropped
05 Battery voltage low! (no AP disconnect)
06 OFF due to Gate Voltage too low
07 OFF due to 1/4-sec over current limit
08 One of two(!) rudder sensors is inoper.!
12 OFF: AP disconnected by tiller button
13 7474 OFF (instant short circuit cut off)
14 OFF due to sensor data missing
15 OFF due to 4-second over current limit
16 OFF or HDG mode due to interrupted
data stream from CW
17 OFF due to drive current > 45A
18 a) Change from APP wind mode to
HDG mode due to missing APP wind
data, or
b) Change from TRU wind mode to
HDG mode, due to missing TRU wind
and APP wind or rate of turn data
19 Change from TRU to APP wind mode
due to missing TRU wind data
21 Change from HDG mode to APP wind
mode due to missing HDG data
22 OFF from HDG mode due to missing
HDG (and APP wind or turn rate) data
23 OFF from APP wind mode due to miss-
ing HDG and turn rate data
24 Change from TRU to APP wind mode
or to OFF-mode due to missing HDG
data
25 AP OFF due missing data from external
rudder angle sensor
26 AP OFF due to switching SERVO wheel
to the 90 degrees thruster mode
27 Change from NAV mode into HDG
mode due to loss of NAV data.
28 OFF or HDG mode on SLAVE-AP due
to failure of MASTER-AP (dual AP's)
29 Change from TRK to HDG mode due to
low Ground Speed (< 0.5 kts)
Autopilot "Test"Display
A quick emulation of a MULTI
FUNCTION display, for checking all
data in the system
The AP display can be converted quickly into
a multi function display, by holding down the
OFF button for 5 seconds.
Then the display works like a multi function
display (with the exception of the LEDs, which
are not always correct).
The feature can be useful, if there is no multi
function display in the system and you want to
verify for example if NMEA log speed or wind
data are received by the autopilot.
When any of the AP mode buttons is pressed
or when power is interrupted, the display will
revert to the normal AP display mode.
Other AP displays or FBW steering wheels in
the system can always be used to operate the
autopilot, while an AP display has temporarily
become a multi function display.
Display Units
Reading the display units' serial
number:
Select the Con-fig mode on the display
unit, then press the left button. The serial
number of the unit will be displayed. Please
note that a "blank" will be displayed instead of
a "b" and a minus sign instead of a "d". For
example the display "3 4A" means a serial
number of 3b4A.
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