Woodward 505HT, Installation And Operation Manual

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Manual 35116 505HT for Pelton Turbines
Woodward 88
Table 4-14. General Configuration (7/9) Screen Command Buttons and Parameters
Include External trips in Trip Relay FALSE
Visibility: Always Select to allow the external trip input(s) to de- energize the Trip
Relay output. When unselected, an external trip contact input to
the 505 will shut down the 505 control but will not de-energize
the 505’s trip relay output.
User Level: Service
Reset clears trip FALSE
Visibility: Always Select to configure the Reset Clears Trip Relay output function.
When selected, a Reset command will energize the trip relay
output even when a trip condition is still sensed by the 505—
typically due to one of the external trip inputs. Once reset, the
unit will be ‘Ready to Start’ as soon as all external trip inputs are
closed. When unselected, the trip relay output will be
deenergized on a 505 trip and will not energize until all trips
have cleared and a ‘Reset’ command is given.
User Level: Service
Enable Load rejection TRUE
Visibility: Always Select to use the load rejection logic.
User Level: Service
Nozzle Position value
10.0 (0.0, 100.0) %
Visibility: Always
Type de position that the Nozzle position goes when a load
rejection is detected.
User Level: Service
Max Speed Derivative 4.0 (0.0, 200.0) %/s
Visibility: Always Maximum speed derivative value to detect load rejection.
User Level: Service
Max Speed
105.0 (101.0, 120.0) %
Visibility: Always Maximum speed value to detect load rejection.
User Level: Service
Max Algorithm Time
10.0 (0.0, 600.0) s
Visibility: Always Time the Nozzle will keep on “Nozzle position Value” when a
load rejection is detected. After this time 500 will take the control
back.
User Level: Service
The operator can navigate between the general configuration screens pressing the soft keys with arrows
to left or right.
Released