Operating manual ALPHASEAPILOT MFC Issue 1.1 Page 74 of 84
ALPHASEAPILOT MFC
2.43 (ii) Non Latched Jog Lever (Non Follow Up) Override Control:-
When the Autopilot is engaged (ON) and steering the required Set Course, it may on occasions
be required to override this Set Course temporarily to avoid potential hazards/optimise leeway
etc. (REMOTE OVERRIDE Mode). This can be done by connection of a proprietary “sprung to
centre” jog lever which in its central position demands no rudder movement allowing the
Autopilot full control of the rudder for steering purposes.
Movement left (Port) or right (Stbd) of the sprung lever will initiate a fixed and safe angle of
rudder (speed related and calibrated during Sea Trials).
Release of the jog lever (sprung back to centre) will cancel the rudder order and steering
control will automatically revert to the Autopilot system which will reassume the Set Course.
This non latched power steer operation provides an immediate override function and can be
selected and calibrated via the Autopilot SET UP Menu (Parameter Nos.62 - set to JOG - and
64).
Application notes in Section TM3 of the Installation and Technical Manual.
2.43 (iii) Latched Jog Lever (NFU) Override & Resume Course Control:-
When the Autopilot is engaged (ON) and steering the required Set Course, it may on occasions
be required to override this Set Course for a prolonged period to avoid potential
hazards/optimise leeway etc.
This can be done by connection of a proprietary “sprung to centre” jog lever which in its central
position demands no rudder movement allowing the Autopilot full control of the rudder for
steering purposes.
Movement left (Port) or right (Stbd) of the sprung lever will initiate a fixed and safe angle of
rudder (speed related and calibrated during Sea Trials).
Release of the jog lever (sprung back to centre) will leave the rudder at the calibrated angle but
further movement of the jog lever in the opposite direction will move the rudder towards mid
ships and beyond to the opposite maximum calibrated angle if the lever movement is
prolonged. The rudder movement will stop at any time the lever is returned to the sprung mid
ships position, but power steer control will be retained by the NFU Jog Lever confirmed by
flashing red and green chevrons on the Autopilot Control Unit panel.
The flashing red and green chevrons are accompanied by an audible “bleep” and the display
message “REMOTE OVERRIDE”. This condition (latched power steer mode) will persists until
either the CANCEL or CONFIRM key is operated.
CANCEL (Resume Course) key operation will cancel the Power Steer mode and the Autopilot
will automatically take up the original Set Course.
CONFIRM key operation will cancel the Power Steer mode and will confirm the current heading
as the new Autopilot course which will automatically be adopted.
This latched power steer operation provides an immediate longer term override function and
can be selected and calibrated via the Autopilot SET UP Menu (Parameter Nos.62 - set to HSC
LATCH - and 64).
Application notes in Section TM3 of the Installation and Technical Manual.
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