Raymarine Evolution EV-1, Installation Instructions Manual

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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.
Bypass valve connection and voltage switch
Some drives feature an electrically-operated bypass valve to minimize the effect on the steering
when the autopilot is in standby.
If the drive has a separate bypass valve, connect it to the Bypass connection on the ACU, ensuring
that the voltage selection switch is set correctly to 12 V / 24 V as appropriate.
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