EN-KO Electronic Control Systems AMF 4.0/ENG/K.K./02
8
load. If operator wants to stop t e engine in test mode panel must be returned to automatic or
manual mode. In manual mode you can stop t e engine by stop button.
Manual M de: If you press t e manual button genset will be switc ed to manual mode. In
manual mode all start stop and pre eat operations, contactor control fulfilled by panel buttons.
PANEL RUNNING PHASES
1. Generat r is still: In t is condition engine running signals must be absent. T ese are oil
pressure, c arging alternator warning lamp signal, generator voltage and frequency. In
manual mode panel doesn’t react to t is signal but in automatic mode panel will try to
stop engine. If electricity panel of genset as manual control and t ese are wanted to be
used. Electronic panel must be switc ed to manual mode.
2. Preheating: In cold weat ers pre eating of engine can be necessary. Engine must be still
during pre eating. If parameter “pre eating time” is not zero, pre eating is accomplis ed
before starting process by panel.
3. Cranking: In t is stage engine is cranking. All engine signals must be absent and engine
must be still before cranking. If one of t e engine signal is detected before cranking, panel
switc to start and stop alarm. Panel will s ow w ic signal is detected wit engine start
stop alarm. If oil pressure signal is detected before cranking panel will wait for it to
decrease to zero. If “before cranking oil pressure delay” is elapsed and oil pressure is not
zero panel will switc to start and stop alarm. In cranking stage all engine signals,
alternator frequency, alternator voltage, c arge alternator voltage and oil pressure is
controlled. If one of t e signals is detected, Panel detects engine is running, crank
disconnects and switc to engine stabilization time. Generator status led starts to blink.
During cranking, “Str” message is s own in t e display. Oil pressure can rise before
engine running so w en oil pressure is detected, crank disconnected after “crank
disconnect oil pressure delay”.
4. Stabilizati n: After generator running signals detected panel waits for engine signals to
stabilize. After engine stabilization time, all alarms are activated.
5. Running: After stabilization time genset is in running condition. If genset in manual and
test modes, alternator contactor time is waited and alternator contactor is closed. In
manual mode operator can close t e generator contactor by generator contactor button. In
running mode generator status led is lit.
6. C ling: If a stop condition occurs by operator or mains status. Generator is switc ed to
cooling period and engine is cooled during “cooling time”. During t is time engine status
led is blinking. If alternator contactor asn’t been closed since last start cooling period is
bypassed. If mains failure occurs during cooling process generator is switc ed back to
running mode and alternator contactor is closed. After cooling process generator is
switc ed to stopping condition.
7. St pping: After cooling stage, generator switc es to stopping stage. If fueling system is
operating solenoid, operating solenoid is de-energized. If fueling system is stop solenoid
solenoid energizes until engine stops. If one of t e engine running signals is detected
stopping period doesn’t ends. Alternator frequency and voltage, c arge alternator warning
lamp signal and oil pressure must be absent. If panel detects engine signals after “fail to
stop delay” panel will switc to start stop alarm.
8. Generat r shutd wn: Generator is stopped because of a red alarm. Generator cannot be
started if alarm is not cleared.
