Woodward 2301E-ST, Инструкция по установке и эксплуатации

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Manual 26694 2301E-ST
Woodward 59
05 TURBINE SPEED (RPM) displays actual turbine speed in rpm.
06 SPEED REF (RPM) displays turbine speed setpoint in rpm.
J** FAILED MPU OVERRIDE **
Figure 3-21. Service: J** FAILED MPU OVERRIDE** Menu
THIS MENU IS USED FOR SETTING THE MPU OVERRIDE LOGIC.
01 AUTO-OVRD OFF SPEED dflt=450.0 (0.0, 2000.0)
This is the setpoint at which the auto MPU override goes off. Once the MPU speed is greater than this
value, the MPU override will go off. If the speed drops below the MPU MIN SPD LEVEL (RPM) (see
Configure Menu – A**SPEED AND STRT OPTIONS**) after the override goes off, the turbine will trip on
loss of speed.
02 AUTO-OVRD ON SPEED dflt=650.0 (0.0, 2000.0)
This is the setpoint where the rolldown override will start if Use Rolldown Override is set to TRUE. When
the speed drops below this low-speed setting for the delay time, the override is turned on.
03 AUTO-OVRD ON DELAY (SEC) dflt=5.00 (0.0, 100.0)
This is the delay time before the MPU override goes TRUE. It is used with the Rolldown Override option -
the delay time associated with turning on the override. If the speed drops below the Minimum Speed
Level setting before the time expires, the unit will trip on loss of MPU signal and reset the speed set-point
to minimum.
04 USE MPU OVRD TIMER? dflt=FALSE (FALSE, TRUE)
If the override timer is to be used, this should be set to TRUE. This option will limit the amount of time
allowed to get to minimum speed (set in Configure mode).
05 USE ROLLDOWN OVERRIDE? dflt=FALSE (FALSE, TRUE)
Set this to TRUE to enable the rolldown MPU override. This option turns on the Failed MPU Override if
the speed is being slowly reduced by closing the Trip-and-Throttle valve or stop valve — this override is
turned on after the speed drops below the AUTO-OVRD ON SPEED setting for the AUTO-OVRD ON
DELAY time.
06 MAX STARTING TIME dflt=60.0 (0.0, 3000.0)
Maximum time required to start; if this time expires the MPU will no longer be overridden. If the turbine
has not reached the MPU MIN SPD LEVEL before this time expires, the turbine will trip on loss of speed
K** SYNCHRONIZER SETUP **
Figure 3-22. Service: K** SYNCHRONIZER SETUP** Menu
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