Operation Manual

Robertson AP300X Autopilot
72 22081814H
Pull out each terminal before connecting the wires. Remove all strands
before putting on the terminal cover.
3.4 Drive unit installation
The relation between drive units, drive unit voltage, input voltage,
drive output and interfacing to steering gear are shown in the table
below. The AP300X system detects whether a reversible motor or a
solenoid is connected and outputs the correct drive signal
automatically.
Refer to the connecting diagram for the different drive units on page 74
onwards. Pay particular attention to the difference in connecting a
reversible motor as compared to solenoids.
Installation instruction for the drive units are found in the manual for
the individual units.
Robertson Drive Unit
type
Drive unit
voltage
Input voltage
(Mains)
Drive output Interface to
steering gear
RPU80, RPU100,
RPU150, RPU160,
RPU300
(Reversible hydraulic
pump)
12V 12, 24,32V
Proportional
rate
Hydraulic
plumbing
RPU200,
(Reversible
hydraulic pump)
24V 24, 32V
Proportional
rate
Hydraulic
plumbing
HLD350,
HLD2000
HLD2000D
(Hydraulic linear
drive)
12V
12V
24V
12, 24, 32V
12, 24, 32V
24, 32V
12V to Bypass
12V to Bypass
12V to Bypass
Proportional
rate to motor,
Direct
mechanical
connection to
rudder tiller
arm
MRD100
(Reversible
mechanical drive)
12V
24V
12, 24, 32V
24V, 32V,
12V to clutch
24V to clutch
Proportional
rate to motor
Chain/
sprockets
MRD150 12V
32V
12, 24V
32V
12V to clutch
32V to clutch
Proportional
rate to motor
Chain/
sprocket
RPU1/RPU3
(Continuous running
hydraulic pump)
12V
24V
32V
12V
24V
32V
12V
24V
32V
(Solenoids)
Hydraulic
plumbing