Manual

CONNECTIONS
Connector Function
Header A Communication
*
Pin1 Communication
Pin2 Communication
Pin3 Communication
Header B AC
Pin1 AC Line
Pin2 ACNeutral
Header C Sensors and Power
Pin1 DCVoltageBattery1(UnitPower)
†
Pin2 DCVoltageBattery2
Pin3
‡
DCVoltageBattery3,TankLevel3,orBilgeFunction
Pin4 DCNegative
Pin5 BatteryTemperature(Positive)
Pin6 BatteryTemperature(Negative)
Pin7 TankLevel1
Pin8 TankLevel2
Pin9 DCShunt(Positive)
Pin10 DCShunt(Negative)
Pin11 ACCurrentCoil(Positive)
Pin12 ACCurrentCoil(Negative)
*Communicationportisforusewithfuturemodules
†
AmperehoursaremeasuredforBattery1ONLY
‡
Threeinputoptionsavailable
7
A
B
1
112
3
12
C
2
2345678910 11
Connector Pin Assignment Table
Specicationssubjecttochange.Seewww.bluesea.comforcurrentinformation.
SENSORS
DC Current
TheshuntmustbeplacedbetweenthenegativeterminalonBattery1and
themainnegativebus.All loads and charge sources should have their
negative terminals on the main negative bus
,withtheexceptionoftheVSM
422negativesourcewhichmustbeconnecteddirectlytothebatterysideof
theshunt.ShuntsensewiresmustbeatwistedpairfromshunttoVSM422
forpropercalculationofStateofCharge(SOC).Twistedpairwirecanbe
purchasedfromelectricalsupplycompanies,ormadebytwistingbyhand
orwithanelectricdrillmotor.ThecurrentreadingforBattery1whenitisnot
beingchargedandhasaloadshouldbenegative.Ifitisnot,reversetheDC
shuntleads.(seepage95)
DC Voltage
VoltagelinestotheVSM422shouldbedirectlyconnectedtothepositive
batteryterminalwithadedicatedwireaheadofanyotherconnections.This
willensurecorrectvoltageandSOCmonitoring.Useanappropriatein-line
fuse(5Asuggested)onthepositivewire.
AC Current
InmostcasestheACCurrentTransformershouldbelocatedonthemain
ACfeedbeforeanyotherdevices.Seehttp://bluesea.com/viewresource/86
formoreinformationonACCurrentTransformerlocation.Thelocationdoes
notaffectstateofcharge(SOC)calculations.
TheCurrentTransformerdoesnotindicatepolarity.IfACvoltageisapplied
andcurrentshowsgreaterthanzerobutthepowerreadingiszeroora
negativevalue,reversetheACCurrentTransformerleads.Theleadsshould
betwistedtoreducetheeffectsofinterference.
AC Voltage
TheungroundedAClineshouldbefusedinlinewithafastactingfuseof
0.25Ato0.5Atoprotectagainstshorts.
Bilge Sensor
Connect“switchon”leadofbilgepumptotheVSM422unit.Thiswire
shouldread+12/24Vwhenrunningand0Vwhenoff.
8
Specicationssubjecttochange.Seewww.bluesea.comforcurrentinformation.