Simrad AP20 Autopilot
10
20220505H
1.4
AP20 Control Unit
A compact autopilot control for panel, bulkhead or bracket
mounting. Large LCD display for readout of autopilot data and
rotary course knob. It has two Robnet connectors for system
interconnection and expansion.
1.5
Junction units
The junction unit is the heart in the AP20 autopilot system. It
contains the steering computer, interface circuits to all system
components and drive circuits for the drive unit motor and
clutch. Three models, J300X, J300X-40 and J3000X are
available.
Junction unit comparison chart:
J3000X
J300X
(J300X-40)
Supply voltage
10-28 V
10-40 V
Motor current
(continuous/peak)
6/10 A
10/20A (20/40A)
Clutch/bypass current
1,5 A
1,5 A
Number of control units
2
5
NMEA ports (input/output)
1
2
Solenoid output
x
x
Input for NFU control
x
x
External alarm
x
Radar clock/data interface
x
1.6
RF300 Rudder Feedback unit
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.
1.7
Heading Sensors
The AP20 autopilot can be used with the following combinations
of heading sensors: