Daiichi Electronics ASY-96 - Operation; Before Bus Voltage Input; After Bus Voltage Input

ASY‑206‑077
8
(7) Synchronizingfailuresignal(ALARM).
Whensynchronizingclosingisfailed3timescontinuously,alarmLEDturnsonabout3secondsafterward
andcontactisoutput.Afteralarmisoutputted,whenthereisacontrolstart,ΔF,ΔV,and±15°
controlactionarecontinued.Acircuitbreakerclosingsignal(25)isnotoutputted.
Synchronizingfailureisinthecasewhenphasedifferenceatbothofbusandgeneratorsideexceeds
10°,thoughcircuitbreakerclosingsignal(25)isoutput.Alarmcanbereleasedatinputnovoltage
orsynchronizingstart(bothofautoandmanual)is“OFF”.
(8) Synchronousclosingpromotionfacility.
Whenphasedifferencecomessmallerwithin±0.05Hz,
governorpulsesignalisautomaticallyoutputabout
3seconds.Afterwardinordertomaketheclosing
speedup.
Governorpulsesignalissignal15Lat“SLOW”side
closingdesignation,andsignal15Risoutputat
“SLOW”sideclosingnon‑designation.
6.Operation
6.1Beforebusvoltageinput
Operationalpowersupplyofthisdeviceissuppliedfrombusvoltageinput.Operationshouldnotbemade
beforethebusvoltageisinput.(Allcontroloutputsmustbe“OFF”signal.)
①Thewiringconfirmationofallsignalsmustbecarriedoutatnovoltagecondition.
InputLINEside：Busvoltage(Receivingpower)
Inputgeneratorside：Generatorvoltage
②Changeofeachsettingvaluemustbemadebeforebusvoltageinputorbeforecontrolstart(referto
16pagesitem7.6).
Thechangeaftercontrolisstartedisnotpossible.Thecontrolwillstopanddisplay“ERROR”(E3).
6.2Afterbusvoltageinput
①“POWERLED”(Green)turnsonwhenbusvoltageisinput.
②Changeofeachsettingvaluemustbemadebeforethebusvoltageinputorbeforecontrolstart.
(Referto16pagesitem7.6).Thechangeaftercontrolisstartedisnotpossible.
Thecontrolwillstopanddisplay“ERROR”(E3).
③Whenvoltageandfrequencyarewithinthecontrolrange,displayofphasedifference“LED”turnson
aroundinthespeedaccordingtothefrequencydifference. 
7segment“LED”ofvoltage(△V)andfrequency(△F)willdisplaythedifference(referto7pages
item5.1).
Phase
difference
3seconds
Governorpulsesignal
t