InteliLite4 AMF20 Global Guide
106
After the command for start is issued (pressing the Start button in MAN mode, auto start condition is
fulfilled in AUTO mode or controller is switched to TEST mode), PRESTART (PAGE 496) and GLOW PLUGS
(PAGE 484) outputs are energized for a time period established by the setpoints Prestart Time (page
227) and Glow Plugs Time (page 228) begins.
When the engine speed exceeds 30RPM, the outputs FUEL SOLENOID (PAGE 477) and IGNITION (PAGE
487) are energized.
When the engine speed exceeds value of Starting RPM (page 227), the engine starter is de-energized.
The engine is considered as started and the Idle period will follow.
IMPORTANT: Additional running engine indications (page 114) signals are not evaluated during
the start of a gas engine. The Pickup must be used in any case!
The maximum duration that the output STARTER (PAGE 501) is energized is determined by the setpoint
Maximum Cranking Time (page 226). If the engine does not start within this period, outputs STARTER
(PAGE 501) and FUEL SOLENOID (PAGE 477) are de-energized and a pause with length determined by
Cranking Fail Pause (page 226) will follow. PRESTART (PAGE 496), GLOW PLUGS (PAGE 484) and
IGNITION (PAGE 487) outputs are active during the pause. After the pause has elapsed, the next start
attempt is executed. The number of start attempts is given by the setpoint Cranking Attempts (page
225).
Once the engine is started, the Idle period follows. The binary output IDLE/NOMINAL (PAGE 487) remains
inactive (as it was during the start). The idle period duration is adjusted by the setpoint Idle Time (page
235).
After the idle period has finished, the output DESCRIPTION (PAGE 487) is activated and the start-up
sequence is finished. The Stabilization (page 108) phase follows.
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