Simrad AP26 and AP27 Autopilots

3.10Drive 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.

HYDRAULIC PUMPS

 

 

 

RAM CAPACITY

FLOW RATE

 

 

MODEL

MOTOR

AUTOPILO

 

 

MAX

PWR.

MIN

MAX

AT 10 bar

 

VOLTS

T

PRESSURE

CONSUM-

 

cm3

cm3

cm3/min

 

 

COMPUTER

(cu. in.)

(cu. in.)

(cu. in/min)

bar

PTION

 

 

 

 

 

RPU80

12V

AC10

80 (4,9)

250

800 (49)

50

2,5-6 A

 

 

 

 

(15,2)

 

 

 

RPU160

12V

AC20

160 (9,8)

550

1600 (98)

60

3-10 A

 

 

 

 

(33,5)

 

 

 

RPU300

12V

AC40

290

960

3000 (183)

60

5-25 A

 

 

 

(17,7)

(58,5)

 

 

 

RPU300

24V

AC20

290

960

3000 (183)

60

2,5-12 A

 

 

 

(17,7)

(58,5)

 

 

 

Steering gear interface: Hydraulic plumbing

Notes !

1.The autopilot system detects whether a reversible motor or a solenoid is connected and outputs the correct drive signal automatically.

2.The drive output of AC10 is sufficient for any type of 12 and 24V solenoids normally found on a recreational boat.

58

20221586B

Page 60
Image 60
Simrad AP27, AP26 manual Drive unit installation, Hydraulic Pumps