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Simrad AP50 Autopilot
14 20221032B
1.4 AP50 Control Unit
This compact autopilot control for panel, bulkhead- or bracket-
mounting has a rotary course knob and a large LCD for readout
of autopilot data. It also has two RobNet connectors for system
interconnection and expansion.
1.5 Junction Units
The junction unit in the AP50 autopilot system contains the
steering computer, interface circuits to all system components,
and drive circuits for the drive unit motor and clutch. Two
models, J50 and J50-40, are available.
J50 J50-40
Supply voltage 10-40 V 10-40 V
Motor current (continuous/peak) 10/20A 20/40A
Number of RobNet units* (+J50) 15 15
NMEA ports (input/output) 2 2
Solenoid output Yes Yes
Galvanic insulated solenoids Yes No
Input for NFU control Yes Yes
External alarm Yes Yes
Radar clock/data interface Yes Yes
* AP50 Control Unit, AP51 Remote Control, RFC35R Rate
Compass, FU50 Follow-up lever, CI300X Compass Interface,
NI300X NMEA Interface, TI50 Thruster Interface, AD50
Analog Drive.
Table 1-1 Junction Unit Model Comparison
1.6 Rudder Feedback Units
RF300S Rudder Feedback Unit
This rudder feedback unit with transmission link and 10 m (30
feet) of cable transforms the angular travel of the rudder to a
digital signal read by the autopilot steering computer. It is to be
used on small to medium size vessels.