Drive Unit Installation - Simrad AP27 Manual

Simrad AP26 and AP27 Autopilots

3.10 Drive unit installation

The relations between drive units, drive unit voltage, autopilot
computer, drive performance and interface to the steering gear
are shown in the tables below.
Refer to the connecting diagram for the different drive units on
page 60 onwards.
Installation instruction for the drive units are found in the
manual for the individual units.
The maximum drive current capability of the AC10, AC20 and
AC40 autopilot computers are different. Use the table below as
reference and observe the notes on next page.
MODEL MOTOR AUTOPILO
VOLTS
COMPUTER
RPU80 12V
RPU160 12V
RPU300 12V
RPU300 24V
Steering gear interface: Hydraulic plumbing
Notes !
1. The autopilot system detects whether a reversible motor or a
2. The drive output of AC10 is sufficient for any type of 12 and
58
HYDRAULIC PUMPS
RAM CAPACITY
MIN
T
3
cm
(cu. in.) (cu. in.)
AC10 80 (4,9)
AC20 160 (9,8)
AC40 290
(17,7)
AC20 290
(17,7)
solenoid is connected and outputs the correct drive signal
automatically.
24V solenoids normally found on a recreational boat.
FLOW RATE
MAX AT 10 bar
3 3
cm cm /min
(cu. in/min)
250 800 (49)
(15,2)
550 1600 (98)
(33,5)
960 3000 (183)
(58,5)
960 3000 (183)
(58,5)
MAX PWR.
PRESSURE CONSUM-
bar PTION
50 2,5-6 A
60 3-10 A
60 5-25 A
60 2,5-12 A
20221586B