Manual 35092
2301E-HT Hydro (Francis Turbines)
Woodward
45
04 UNIT STOP RATE:
[*5 (0.01,100)] This is the rate at which the 2301E-HT ramps the gate limit to 0%
during a unit STOP command if a slow stop is issued or during an UNLOAD command. The rate is in gate
position percent/second.
05 RESET PULSE TIME:
[*3 (0.01,10)] This is the time, in seconds, that a reset is held in each time a
RESET command is given to the 2301E-HT.
06 FAST OFFLINE STOP:
[*TRUE or FALSE] Tune TRUE to ramp gate limit to zero at very fast rate
when breaker opens. This fast rate will essentially be the maximum hydraulic rate.
07 USE LOAD REJ GATE LIMIT?:
[*TRUE or FALSE] Tune TRUE to enable the gate load rejection
algorithm.
08 LOAD REJ GATE VALUE:
[*6 (0,100)] This value defines the gate demand when the load rejection
algorithm is triggered
09 LOAD REJ MAX TIME:
[*7 (0,100)] This parameter defines the maximum amount of time that the
control shall stay on the load rejection algorithm. When the load rejection algorithm is triggered it stays on
it until the turbine speed falls below 102% or the “Load rejection Maximum Time” expires, whichever
comes first.
10 FRST MODE WHEN BRK CLOSE:
[*2 (1,4)] This parameter defines the first control mode when the
generator breaker closes. The possibilities are: position control, baseload control, level control or remote
baseload control.
11 FRST MODE WHEN BRK CLOSE:
[MONITOR]
12 LOCAL / REMOTE / BOTH:
[MONITOR] This menu item monitors the local / remote function. If there
is no discrete input configured for this function both commands will be accepted.
09 UNIT SPEED
This service
menu contains items that are related to the unit’s speed.
01 UNIT SPEED (SS1):
[MONITOR] This menu item displays the speed of the first pickup .This is the
speed input #1 that the 2301E-HT uses in its speed control algorithm.
02 UNIT SPEED (SS2):
[MONITOR] This menu item displays the speed of the first pickup .This is the
speed input #1 that the 2301E-HT uses in its speed control algorithm.
03 USE SPD DEADBAND?:
[*1 (1,3)] This menu item enables or disables the speed deadband.
1 = Not used.
2 = Deadband on-line.
3 = Deadband always.
04 HIGH DEADBAND (%):
[*0.05 (0,5)] This menu item defines the top portion of the deadband window,
in percent of rated speed.
05 LOW DEADBAND (%):
[*0.05 (0,5)] This menu item defines the bottom portion of the #1 deadband
window, in percent of rated speed.
06 START SPEED (%):
[*50 (-10,100)] This menu item defines the speed at which the control is seeing a
valid speed signal upon startup. This number should be tuned to a speed slightly higher than the lowest
valid speed signal during every startup.
07 TIME TO START SPD:
[*20 (1,600)] This menu item defines the time, in seconds, it takes for the
control to start monitoring the pickup input for pickup failure.
08 TOP-SPEED WINDOW:
[*110 (98,110)] The 2301E-HT tries to identify when the speed has stabilized
during startup or after a load rejection by waiting for the speed to stay within a speed window for a user
defined time period. This menu item defines the top limit for the stable speed window.
09 BOTM-SPEED WINDOW:
[*90 (90,102)] The 2301E-HT tries to identify when the speed has stabilized
during startup or after a load rejection by waiting for the speed to stay within a speed window for a user
defined time period. This menu item defines the bottom limit for the stable speed window.
10 TIME TO STABL SPD:
[*15 (1,120)] The 2301E-HT tries to identify when the speed has stabilized
during startup or after a load rejection by waiting for the speed to stay within a speed window for a user
defined time period. This menu item defines the time period that the speed must remain in the window.
11 OVERSPEED SETPNT:
[*120 (0,300)] This menu item defines the overspeed trip set point. The set
point is in percent (%) of rated RPM.
12 OVERSPEED DELAY:
[*1 (0.01,2)] This is the delay time on the overspeed trip detection. This can
avoid problems encountered with occasional speed spikes.
13 ENABLE OS BLOCK:
[*TRUE or FALSE] This menu item enables or disables the overspeed block.
Unless special circumstances are present, this value should be left at TRUE.
14 TIME TO INCOMPLETE START:
[*100 (1,600)] This menu item defines the time, in seconds, it takes
to get from the initial START command to the “START SPEED” mentioned in the previous item.
Released
