Introduction
20169223D 1-11
1.9 Connection of steering levers
As shown on Fig. 1-8., a number of NFU levers and a single FU lever
can be connected to the AP9 MK3 autopilot system.
The S9 NFU lever combines an "IN - OUT" function with the normal
PORT - STBD operation. The "IN - OUT" function can be combined
with the external mode-selection of the autopilot and this
automatically brings the autopilot to NFU mode when the S9 lever is
pulled out. The mode change has two alternatives:
A. Sets the autopilot to NFU mode when the S9 is pulled out. NFU
mode will remain when S9 is pushed in again. AUTOMATIC or
NAV to be selected on the control unit. For this alternative refer to
page 5-24.
B. Sets the autopilot to NFU-mode when the S9 is pulled out. Mode
will change back to AUTOMATIC or NAV when the S9 lever is
pushed in again. To obtain this function, the closing contacts if S9
no. A5-A6 is used to control the mode. Refer to page 5-21.
An unlimited number of S9’s can be connected in parallel.
Note ! It is also possible to add several FU-levers to an AP9 MK3 system by using
the FUA9X Follow-Up Amplifier instead of the D9X Distribution Unit.
Note ! NFU levers should not be used for analogue steering(
±
10V output).
AP9MKII AUTOPI LOT
AP9 MK3
S9 S9
S9
(NFU)
FU9X
D9X
DISTRIBUTION
UNIT
ONE OFF
Fig. 1-8
NFU/FU Levers
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