MEC 320 GENSET CONTROLLER
PM079 Rev 0 07/06/08 31 Thomson Technology
Stop sequence, description
The stop sequence will be activated, if a stop command is given. The stop sequence includes
the cooling-down time, if the stop is a normal or controlled stop.
Description
Cooling-down
Stop
Comment
Auto mode stop
X
X
Trip and stop alarm
X
X
Stop button on display
X
Semi-auto or manual.
Remove ‘auto start/stop’
X
X
Auto mode: load take over.
Emergency stop
X
Engine shuts down and GB opens.
The stop sequence can only be interrupted during the cooling-down period. Interruptions can occur
in these situations:
Stop failure alarm
A stop failure alarm will occur, if the running feedback or the generator voltage and frequency are
still active. The stop failure timer is adjusted in 6220 Stop failure. Output A (OA) and output B (OB)
in this menu indicate the relay output(s) that will be activated at a stop failure alarm.
Breaker sequences
The breaker sequences will be activated depending on the selected mode:
Mode
Gen-set mode Breaker control
Auto
All
Controlled by the unit
Semi-auto
All
Push-button
Manual
All
None
Block
All
None
Event
Comment
Mains failure
AMF mode selected (or mode shift selected ON) and auto
mode selected.
Start button is pressed
Semi-auto mode: Engine will run in idle speed.
Binary start input
Auto mode: load take over.
GB close button is pressed
Semi-auto mode only.
The stop sequence can only be interrupted during the cooling-down period.
When the engine is stopped, then the speed governor output is reset to the
offset value if option E1 or EF2 is selected, or the initial value if option EF3 is
selected and the PWM output is used. Please refer to the descriptions of the
mentioned options.
Содержание MEC 320
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