EMKO EAOM-19 - Alternator Voltage Lower(P03) and Upper Limit(P04), Fault Control Delay(P20); Engine Cooling Time (P07); Mains Transition Delay (P09); Battery Voltage Lower Limit (P11)

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4.5.2 AlternatorVoltageLower(P03)andUpperLimit(P04),FaultControlDelay(P20)
P03 Alternatorvoltagelowerlimit
P04 Alternatorvoltageupperlimit
P20 Alternatorvoltagefaultcontroldelay
Controondelay
Alternatorvoltagefaultcontroldelay
Attheendof timedefinedbyparameterP19,afaultwillbereportedifthe
generatorvoltagegoesoutsidethewindowdefinedbytheupperandlowerlimitsformore
thanthetimedefinedasthe (P20). Thisfailure
immediatelystopsthegeneratingset,withoutcool-downdelay.
P51Speedlowerlimit
P52Speedupperlimit
P21Speedfaultcontroldelay
Controondelay
Speedfaultcontroldelay
Attheendof timedefinedbyparameterP19,afaultwillbereportedifthe
generatorfrequencygoesoutsidethewindowdefinedbytheupperandlowerlimitsformore
thanthetimedefinedasthe (P21). Thisfailureimmediatelystops
thegeneratingset,withoutcool-downdelay.
4.5.3 AlternatorFrequencyLower(P51)andUpperLimit(P52),FaultControlDelay(P21)
Thisisthetimethegeneratoristorunoff-loadoncetheloadtransfersignalhasceased. This
givestheenginetimetocooldownbeforeshutdown.ParameterP07
definesthedurationofthiscooling-offperiod.
Enginecoolingtime
4.5.4EngineCoolingTime(P07)
Inautomaticmode,whenthemainshasbeenrestoredafteraninterruption,theunitwill
switchtheloadbackfromthegeneratortothemainssupplyafterthedelayprogrammedinto
P09. Thisdelayallowstimeforthemainsvoltagetosettlebeforereconnectingtheload.
4.5.5MainsTransitionDelay(P09)
Ifthebatteryvoltagedropsbelowthedefined ,analarmoccurs.
Itdoesn'tstopthegeneratingset.
BatteryVoltageLowerLimit
4.5.6BatteryVoltageLowerLimit(P11)
ThisparameterallowstheuseofeitheraStopsolenoidoraFuelsolenoid.
WithFuelSolenoidselected,thefuelsolenoidwillbeenergisedwhiletheengineisrunning
andde-energisedtocutoffthefuelandstoptheengine.
WithStopSolenoidselected,thestopsolenoidisnormallyde-energisedandonlyenergised
tostoptheengine. Thesolenoidremainsenergisedfortheperioddefinedasthe
(P14).
Stop
MagnetEnergisingTime
4.5.7Stop/FuelSolenoidSelection(P13)