Woodward 2301E-ST, Installation And Operation Manual

Page: 47 / 126

Manual 26694 2301E-ST
Woodward 45
01 SPEED CONTROL STATUS displays the status of the speed control. Will display one of the following:
READY FOR RESET
READY TO START
VALVE LIMITER
SPEED PID RAMP
AT IDLE SPEED
AT MIN GOVERNOR SPEED
AT IDLE SPEED
AT RATED SPEED
AT MAX GOVERNOR SPEED
IN CRITICAL RAMP
SHUTDOWN
02 TURBINE SPEED (RPM) displays actual turbine speed in rpm.
03 GENERATOR FREQUENCY (HZ) displays the calculated generator frequency in hertz. This will
typically be a value from the following table:
Table 3-1. Calculated Generator Frequency Examples
Generator
Poles
60 Hz
Generator
50 Hz
Generator
2 3600 rpm 3000 rpm
4 1800 rpm 1500 rpm
6 1200 rpm 1000 rpm
8 900 rpm 750 rpm
If a rated speed other than the values listed here is entered, the calculated generator frequency shown
may not be correct.
04 SPEED REFERENCE (RPM) displays turbine speed setpoint in rpm.
05 ACTUATOR SIGNAL (%) displays actuator demand percentage (0-100%).
06 ACTUATOR CURRENT (mA) displays the current output to the actuator in milliamps.
07 VALVE LIMITER (%) displays the valve limiter demand percentage (0-100%).
08 SPEED PID (%) displays the speed PID output percentage (0-100%).
09 CRITICAL SPEED BAND? displays a TRUE or a FALSE denoting that the speed reference is in the
critical band.
10 SPEED REF BIAS (RPM) displays the total speed bias into the summing junction.
11 ANALOG INPUT #1 displays analog input #1 value.
12 ANALOG INPUT #2 displays analog input #2 value.
13 START MODE SELECTED displays the START MODE selected. Will display one of the following:
NO START MODE SELECTED
MANUAL START MODE
SEMI-AUTOMATIC START MODE
AUTOMATIC START MODE
IN-CORRECT MODE SETUP
Released