Installation Instructions

Bypassvalveconnectionandvoltageswitch
Somedrivesfeatureanelectrically-operatedbypass
valvetominimizetheeffectonthesteeringwhen
theautopilotisinstandby.
Ifthedrivehasaseparatebypassvalve,connectit
totheBypassconnectionontheACU,ensuringthat
thevoltageselectionswitchissetcorrectlyto12V/
24Vasappropriate.
Important:T oavoidpotentialdamageto
equipment,ensurevoltageselectorswitchissetto
thecorrectsetting.Thebypassvalvevoltagemay
bedifferentfromthatofthedriveitself.Ifindoubt,
consultthemanufacturerofthedriveunit.
Bypassvalveconnectioncolors
ColorDescription
ARedBypassvalvePositive
(+)connection
BBlueBypassvalveNegative
(–)connection
VMUadapterconnection—ACU-400
TheACU-400interfacestotheZF-MarineVMU(sail
poddrive)usingtheVMUadapter.TheVMUadapter
connectstotheACU-400asshown.
1.ACU-400
2.VMUadapter
3.ZF-MarineVMU(Connectiontosailpoddrive)
Note:
ThescreenwireisterminatedattheZF-Marine
VMUandVMUadaptor.ItisNOTconnectedat
theACU-400.
Raymarinerecommendsthefollowingcable
specication:
•4-core(22AWG)withoverallscreen
SeaTalkng®connection—ACU-200,
ACU-300,ACU-400
TheACU-200,ACU-300,andACU-400are
connectedtoacompatibleautopilotcontrollerusing
SeaTalkng®.
TheACU-200,ACU-300,andACU-400connectto
theSeaT alkng®backboneusingthesuppliedspur
cable.
Note:
Forclarity,onlythepower-relatedACUconnections
areshownintheillustrationabove.
1.SeaT alkng®powerswitch
2.ACUconnectorpanel
3.Evolution™toSeaTalkng®spurcable
4.SeaT alkng®backbone
Cablesandconnections39