Special Applications - Simrad Robertson AP9 Mk3 Instruction Manual

1.11

Special Applications

Example I:
AP9 MK3
A P 9 M K II A U T O P IL O T
DISTRIBUTION
SOL. THR.
STATE INT.
PCB PCB
In this example the autopilot is interfaced both to a conventional
rudder system, using ON - OFF solenoid valves, and an azimuthing
bow thruster with ±10V as control signal.
The AP9 MK3 can provide different parameters for the thruster and
the rudder control respectively, and the combination is determined
under the INFO loop 2 (Ref. page 2-9).
The combination shown above requires a Thruster Interface PCB to
provide the single ±10V analogue output, and a Thruster Selector
Switch to provide the change-over (C/O) signal to the thruster
combined with the mode control to the autopilot. The Thruster
Interface PCB, part no. 20126017 is mounted in the Distribution Unit,
and the solid state PCB must be specified according to the switching
voltage. (Ref. Standard System).
20169223D
THRUSTER SELECTOR
D9X
UNIT
MODE
SOLENOID (ON/OFF) SIGNALS
Special applications, Example 1
SWICH
C/O SIGNAL
+/-10V ANALOG
(VIA THR.INT.)
RF14XU
Fig. 1-10
Introduction
THRUSTER
ELECTRONICS
SOLENOID
VALVES
RUDDER
1-13