Woodward 2301E-ST, Installation And Operation Manual

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Manual 26694 2301E-ST
Woodward 56
08 RAISE SLOW RATE (RPM/S) dflt=10.0 (0.0, 1000)
Enter the raise speed rate (rpm/second). This is the rate the speed setpoint moves when using the RAISE
SPEED / LOAD discrete input until the Raise / Lower Time Delay has expired. At this time the Raise Fast
Rate takes over.
09 RAISE FAST RATE (RPM/S) dflt=25.0 (0.0, 1000)
Enter the raise speed rate (rpm/second). This is the rate the speed setpoint moves when using the RAISE
SPEED / LOAD discrete input.
10 R/L TIME DELAY (SEC)
dflt=5.0 (0.5, 30.0)
Enter the time in seconds that the Raise or Lower Slow Rates has control of the speed setpoint. After this
time has expired, the Raise or Lower Fast Rate has control of the speed setpoint.
11 CRITICAL LOW POINT (RPM)
dflt=2500.0 (0.0, 32000)
Enter the lower limit of the critical speed avoidance band.
(Must be less than the CRITICAL HI POINT and greater than IDLE SPEED SETPOINT)
12 CRITICAL HI POINT (RPM) dflt=3000.0 (0.0, 32000)
Enter the upper limit of the critical speed avoidance band.
(Must be greater than the CRITICAL LOW POINT must be less than the MIN GOV SETPOINT).
13 CRITICAL RATE (RPM/SEC) dflt=100.0 (0.0, 32000)
Enter the rate that the speed setpoint will move through the critical speed avoidance range (in
rpm/second).
14 USE SET POINT SET-BACK? dflt=FALSE (FALSE, TRUE)
Set this value to TRUE to use the SET POINT SET-BACK feature. This feature will instantly reset the
speed setpoint to the actual running speed of the turbine when the RAISE SPEED / LOAD or LOWER
SPEED / LOAD discrete inputs are switched. During a ramp, this input can be used to stop the ramp from
changing the speed set point. Set this value to FALSE to disable this feature.
(This feature must be left FALSE when using this control for generator applications)!
H** PROCESS CONTROL **
Figure 3-19. Service: H** PROCESS CONTROL ** Menu
Released