Raymarine EVOLUTION EV-1 Installation Instructions Manual

Also see for EVOLUTION ACU-100: Installation instructions Installation instructions Manual

4.3 ACU-100, ACU-150connectionsConnections overview — ACU-100,ACU-1501. SeaTalkng® connection2. Rudder reference connection3. Power connection4. RF Ground connection (drain conductor)5. Motor (drive) connectionMaking connectionsFor information on how to connect the variouscomponents of the autopilot system, refer to thefollowing sections:• 5.1 EV and ACU installation instructions• Pilot controller documents• Drive unit installation documentsPower connection — ACU-100,ACU-150Power to the ACU-100 and ACU-150 must be froman appropriately fused and rated supply.1. ACU-100, ACU-150 power connection panel2. Vessel power distribution panelPower connection colorsColor DescriptionA Red Power in Positive (+)12 V dcB Black Power in Negative (–)0 V dcWarning: Positive groundsystemsDo not connect this unit to a system whichhas positive grounding.Fuses and circuit protectionThere are 3 levels of power protection in the autopilotsystem. The drive (motor) and associated cablesare initially protected by the current sensing and stallcondition detection within the ACU hardware andsoftware. A second level of protection is providedto these parts and the ACU components by theunit's main power fuse. Protection for the entireautopilot system and its wiring back to the mainpower distribution panel is provided by your vessel’scircuit breaker / fuse.Power supply circuit protectionProtect the power supply for the Evolution system atthe distribution board with a fuse or circuit breakerthat is suitable for the ACU. For guidance, refer tomain power fuse rating stated on the ACU connectorpanel. If in doubt, consult your local dealer.Internal fusesThe ACU uses standard automotive blade fuses.Spare fuses are located on the underside of theremovable cover.Note:For clarity, only the power and fuse-relatedconnections are shown in the illustration above.1. Power fuse (accessible via the removable cover)2. SeaTalkng® fuse (fuse power supply from ACUto SeaTalkng® backbone)3. Power fuse (labelled with total power consumedby system)Fuse ratingsSeaTalkng® 3 AACU-100 10 ACables and connections 29