Woodward GECO, Техническое руководство, Страница: 45 / 90

Manual 03554 GECO

Stoichiometric
Woodward 37
This frame shows the status of the input fault detection function:
Screen 1: Shutdowns
ClearAll
: Clears all shutdown faults.
TC Upstream
: OK/SHUTDN/clear
shutdown.
TC Dnstream
: OK/SHUTDN/clear
shutdown. If exhaust temperature
thermocouples are used, they can be
configured to shut the engine down when
the alarm is tripped. This indicates if that
is the cause of a shutdown.
Controller
: OK/SHUTDN/clear shutdown.
This will indicate if the control has
triggered a shutdown command.
Tech Tip: Controller shutdown indicates any SD faults
(from Fault Enables on screen 2).
Screen 1: Status/Control
ShutdownRelay
: OFF, ON. The state of
the shutdown output.
Valve State
: HOLDING, ACTIVE. The
state of the Control
Valve.
ClsdLoopSwtch
: OFF, ON. The
position of the closed loop switches on the
circuit board.
Manual Mode
: OFF, ON. This mode can
be activated only while in the OPEN
LOOP control mode. It allows for manual
positioning of the control valves.
Screen 1: Oxygen Sensors
EGO unfilt
: Oxygen sensor signals before filtering.
EGO filter
: Oxygen sensor signals after filtering.
EGO target
: Target values for CL and adaptive.
EGO health
: Remaining “life” of sensor.
Adaptive
: Adaptive control shift for EGO3 (Cat-Out)
Valve Command
: Valve opening command.
Valve Cur
: Actual valve control current.
Shutdowns
ClearAll High
TC Upstream OK
TC Downstream OK
Misc.
Controller OK
Oxygen Sensors
Engine-Out Cat-Out
Bank1 Bank2 Bank1+2(EGO3)
EGO unfilt 0.642 0.656 0.675 volts
EGO filter 0.618 0.661 0.698 volts
EGO target 0.600 0.600 0.712 volts
EGO health 34 97 90 %
Adaptive +2.10 %
Valve Cmd +33.00 +65.00 %
Valve Cur 0.41 0.59 amps
Status/Control
Valve State HOLDING
ShutdownRelay OFF
ClsdLoopSwtch ON
ManualControl OFF