Operating manual ALPHASEAPILOT MFC Issue 1.1 Page 33 of 84
ALPHASEAPILOT MFC
2.6 (III) Course Comparator Alarm
This facility compares the Heading data received by the Autopilot system and registers any
difference between the Heading values received by the two highest priority inputs
(nominated via the Set Up Menu) and produces an audible and visual alarm if the difference
exceeds the value set in the LIMITS Menu.
The Heading input comparisons can be NMEA vs NMEA or NMEA vs HSC2 (i.e. whichever
inputs are prioritised as No.1 and No.2).
To switch the Course Comparator Alarm Mode ON/OFF:-
a) Simultaneously press the “CANCEL” and “CONFIRM” keys for 5 seconds until
the Set Up Menu is displayed with a black cursor highlighting the Set Up
parameter currently selected.
b) Rotate the Autopilot Set Course Control to move the cursor to parameter
number 36 (COURSE COMPARATR).
c) Use the rotary (+/-) illum. control to set ON/OFF as required.
To set the two highest priority heading inputs:-
a) If not already in the Autopilot Set Up Mode, simultaneously press the “CANCEL”
and “CONFIRM” keys for 5 seconds until the Set Up Menu is displayed with a
black cursor highlighting the Set Up parameter currently selected.
b) Rotate the Autopilot Set Course Control to move the cursor to parameter
numbers 32 and 33 (MAG & NMEA PRIORITIES).
c) Use the rotary (+/-) illum. control to select as appropriate.
To set the CCA delay period (10-60 seconds):-
The CCA delay period cannot be independently set and always takes the delay time set for
the Off Heading Alarm. (See item 2.6 (ii) above).
To set the CCA alarm (difference limit) level:-
a) Use the “LIMITS” key to enter the Limits Menu.
b) Use the “LIMITS” key again to select “C.COMP” box followed by flashing
current value (4° to 16°).
c) Use the rotary (+/-) illum. control to set the required value.
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