NORTHROP GRUMMAN naviguide 4000, User, Installation And Service Manual

Page: 40 / 252

056336 Rev. AA NAVIGUIDE 4000
Page 2–16 2.3: Operating Procedures
2.3.2 Selecting the Steering Mode
2.3.2.1 In Systems with a Mechanical Mode Selector
If a mechanical steering mode selector is installed at the main steering position,
the desired steering mode is selected and bus steering is engaged/disengaged
accordingly through the mechanical selector.
In case of the „FU“, „Auto“ and „External“ bus steering modes, control remains at
the main steering position and the corresponding control device at main becomes
active immediately.
Fig. 2–5:
selecting the
bus steering
mode at Main
with a mechan-
ical mode
selector
If remote steering positions are present, the mechanical steering mode selector
may offer a dedicated „Remote“ steering mode. In this case, selecting the „Re-
mote“ steering mode initiates control transfer to a remote steering position.
Fig. 2–6:
switching to the
Remote steer-
ing mode with
a mechanical
mode selector
NFU / MAIN
ACTIVE
FU
AUTO / MAIN EXTERNAL
AUTO EXTERNAL
NFU
NFU / MAIN
NFU / MAIN
FU / STBD WING
NFU
REMOTE
Main Remote
READY FOR TAKEOVER
ACTIVE
NFU / MAIN
Note
When the „Remote“ steering mode is selected at the steering mode selector, the
previously selected steering mode will remain active until control has been taken
over at a remote steering position.