Solenoid (Drive) And Bypass Valve Connection - Acu-300 - Raymarine EVOLUTION EV-1 Installation Instructions Manual

2. Motor (not all compatible variants are shown in
the illustration above)
Clutch connection colors
Color
A Red
B Blue
Motor power output
ACU–200
15 A (maximum continuous
output)
Note:
The motor output has full short-circuit and
over-current protection. Should either of the motor
output connections be shorted to ground, there
should be no permanent damage to the autopilot.
Clutch power output
ACU–200
Up to 2 A continuous at 12 V
on 12 V and 24 V systems.
Note:
The use of a clutch drive will have an impact
on the amount of electrical current available to
the SeaTalkng® backbone. On 24 V systems,
there is an 8 A / 12 V maximum supply for the
SeaTalkng® backbone and clutch drive combined.
For example, if the clutch requires 4 A, the
SeaTalkng® supply can only deliver 4 A to the rest
of the backbone.
Note:
The clutch output on all ACU variants has full
short-circuit and over-current protection. Should
either of the clutch output connections be shorted
to ground, there should be no permanent damage
to the autopilot.
38
Description
Clutch Positive (+)
connection
Clutch Negative (–)
connection
ACU-400
30 A (maximum continuous
output)
ACU-400
• Up to 4 A continuous at
12 V on 12 V systems.
• Up to 4 A continuous at
24 V on 24 V systems.
• Up to 4 A continuous at
12 V on 24 V systems.
Clutch voltage switch
If the drive has a separate clutch connection, you
must ensure that the clutch voltage switch on the
ACU is set correctly to suit the connected drive.
Important:
To avoid potential damage to equipment, ensure
voltage selector switch is set to the correct setting.
The clutch voltage may be different from that of the
drive itself, for example the range of both 12 V and
24 V Raymarine drives all have a 12 V clutch. If in
doubt, consult your local dealer.
Solenoid (drive) and bypass valve
connection - ACU-300
Constant Running Pump (solenoid) drives connect
to the connection panel of the ACU-300.
Solenoid drive connection
1. Electronic steering / jog lever (if required)
2. Back-feed protection diodes (if using an
electronic steering or jog lever)
3. Solenoid out
4. Solenoid return
5. Solenoid valves (with diodes across spool
valves)
Note:
If an electronic steering or jog lever is used, fit
diodes (suggested type: 1N4004) in-line with the
solenoid outputs to prevent back-feeding the ACU.