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DSE 5xxx Configuration Software ManualStart TimersCranking timeCrank rest timeSmoke limitingSmoke limiting offSafety on delayOverspeed OvershootWarm up timerTransfer timeBreaker Close PulseTimeBreaker Open PulseTimeFunctionThis is the maximum amount of time that the module will energise thestarter motor for during starting attempts once the starter has engaged.This is the amount of time the module will wait for between start attempts.This is to allow the starter motor to cool and the starter batteries torecover.This is the amount of time that the smoke limiting output will remainactive for once the engine has started. While the smoke limiting output isactive the engine will be held at a reduced speed to minimise smokeemissions on start-up. (Only if fitted with an appropriate Electronic FuelControl module). Once the timer has expired the engine will be allowedto accelerate up toit’s normal operating speed.This is the amount of time that the ‘delayed alarms’ protection is heldinactive for following termination of the Smoke Limit mode. This is toalow the engine to accelerate to it’s normal running speed withouttriggering an underspeed alarm, etc. The Low Oil Pressure Alarm is notdelayed by this timer.This timer dictates how long the module will ignore the Low oil pressure,High Engine Temperature, Underspeed, Undervolts and any other inputsconfigured as active from safety on. It allows the values such as oilpressure to rise to their operating values on starting without triggering analarm. Once the timer has expired all alarm conditions are monitoredagain.If configured to use ‘fast loading’, should al the monitored conditions,such as oil pressure, come to the expected state prior to the end of thesafety on timer, the timer will be terminated prematurely ensuringmaximum protection as soon as possible.This timer is used to prevent nuisance tripping on generators where aslow response governor allows the engine to overspeed slightly duringstart-up. This setting allows the normal overspeed shutdown level to beexceeded by a percentage (up to a maximum of 10% - see ‘Engine’,’Speed setings’) for the duration of the of this timer. Should the enginespeed exceed this temporarily elevated level it will be shutdown. Oncethe overspeed timer has expired the overspeed shutdown value isrestored to the normal level.NOTE:- This is not a delay on overspeed shutdown, only atemporary raising of the overspeed value, therefore overspeedprotection is not compromised.This timer is initiated once the engine is up and running. It delays loadingthe generator until it has stabilised. Once this timer has expired the ‘Closegenerator’ signal wil be given and the generator is available to be loaded.This is used to allow for fixed duration transfer breaks when switchingfrom mains to generator and back. It can be used to ensure that thesupply is removed from the load for a fixed period of time to allowpumps/motors to come to rest etc.This is used to determine the duration of the Mains and Generator closesignals. This timer is only used if Pulsed outputs are configured to beused.This is used to determine the duration of the Mains and Generator opensignals. This timer is only used if pulsed outputs are configured to beused.40DSE 5xxx Configuration software ISSUE 2 02/07/04 AM
DSE 5xxx Configuration Software ManualEDIT TIMERS LOAD/STOPPING TABTimer DescriptionsLoading /StoppingReturn delayCooling TimeETS Solenoid hold timeFail to stop delay timeGenerator TransientDelayBattery Low Volts DelayFunctionThis timer dictates how long the module will wait before it will unload thegenerator (back to the mains supply if AMF) and initialise it’s run-on andshutdown cycle. This is to ensure that the mains supply has stabilisedbefore transferring the load back to mains.This is the time the generator is to run off-load once the load transfersignal has ceased. This gives the engine time to cool down beforeshutdown.This timer is used if the unit is configured to operate an Energise to stopengine. It dictates the duration that the ETS output will remain activeafter the module has detected the engine has come to rest. If the ETSoutput is not configured, this timer will still operate, preventing animmediate restart.Once the module has given a shutdown signal to the engine it expects theengine to come to rest. It monitors the Oil pressure and speed sensingsources and if they still indicate engine movement when this timer expiresa ‘Fail to stop’ alarm signal is generated.This timer dictates how long a generator anomaly must be present beforethe module will respond to it. This can be used to prevent nuisancetripping when switching loads etc.This timer dictates how long the module will wait before it will give a lowDC plant voltage alarm in the event of the plant voltage falling below lowvoltage trip level. This can be used to prevent nuisance alarms whenusing poorly regulated power supplies and battery chargers, and duringengine cranking.DSE5xxx Configuration software ISSUE 2 02/07/04 AM 41
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