Woodward GECO, Техническое руководство, Страница: 49 / 90

Manual 03554 GECO

Stoichiometric
Woodward 41
Screen 2: Modbus Configuration
Mode
: ASCII, RTU, or OFF.
Parity
: EVEN, ODD, or NONE.
Baud
: 1200, 2400, 4800, 9600, or
19200. Choice of possible
communication baud rates.
Address
: 0-247. Modbus slave
address.
Access
: USER, or OPERATOR.
Activity
: YES or NO, this indicates
that the control is currently recognizing communication activity on the RS485
port.
Mem Module
: OK, this indicates that the Modbus memory circuitry is functional.
Screen 3: Engine
Speed
: Engine rpm from magnetic pickup
(MPU) or “G-lead.” (This value defaults to
1350 if the Digital In RUN signal is used).
MAP
: Intake manifold absolute pressure in
pounds per square inch absolute.
TC Upstream
: Pre-catalyst thermocouple
input in degrees F.
TC Downstream
: Post-catalyst
thermocouple input in degrees F.
Control1
: OPEN LOOP, CLOSED LOOP,
CL+ADAPTIVE. These are the air/fuel ratio
control modes.
Control2
: (same).
RunMode
: STOPPED, CRANKING, RUNNING. These are the start sequence
modes. Once the engine reaches idle speed, it should be in the RUNNING mode.
Run Time
: The time, in hours, since the last engine start.
Hour Meter
: The total engine run time since the control was installed.
DC Power
: Power supply voltage to the circuit board.
Screen 3: Manual Operation
ClsdLoopSwtch
: OFF, ON. The position of
the closed loop switch 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.
Engine
Speed 0 rpm
MAP 10.00 psia
TC Upstream 1020

F
TC Dnstream 1080

F
Control1 OPEN LOOP
Control2 OPEN LOOP
RunMode STOPPED
Run Time 0000:00:00
Hour Meter 0.000
DC Power 13.7 volts
Manual Operation
ClsdLoopSwtch OFF
ManualControl OFF
ModBus Configuration
Mode OFF
Parity NONE
Baud 9600
Address 99
Access USER
Activity OFF
Mem Module
OK