Woodward 505HT, Installation And Operation Manual

Page: 95 / 199

Manual 35116 505HT for Pelton Turbines
Woodward 93
Offline PID Screen
The purpose of this screen is to configure the offline PID. This screen has a live trend where it is possible
to check the PV (Speed) in red, Setpoint in green, the PID output in blue and the Nozzle Limiter in pink.
It is also possible to tune the PID.
Figure 4-22. Offline PID Screen
Table 4-17. Offline PID Configuration Settings
P 1.6 (0.001, 50.0)
Visibility: Always The Proportional Gain Input determines the gain of the
proportional component of the block's response.
User Level: Service
I
0.09 (0.001, 50.0)
Visibility: Always The Integral Gain Input determines the gain of the integral
component of the block's response.
User Level: Service
D
100.0 (0.01, 100.0)
Visibility: Always The Speed Derivative Ratio (S_D_R) input affects the derivative
component of the block's response.
User Level: Service
The operator can navigate between the other PID´s screens pressing the soft key with right arrow.
To change the settings of the trend press the soft key “Settings” and the below screen will pop up.
Figure 4-23. Offline PID Settings Screen
Released