Woodward 2301E-ST, Инструкция по установке и эксплуатации

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Manual 26694 2301E-ST
Woodward 78
Semi-automatic Start. The Speed Reference will increase up to the rated speed reference after the
Start Command is issued. The valve reference and actuator demand are
controlled by the raise / lower contact inputs.
Figure 4-3 is an example of a semiautomatic start sequence.
1.
Close the Run / Shutdown discrete input, toggle the Reset discrete input,
and close the Start / Unload contact.
2. The speed reference ramps up to by the programmed rate to the rated
speed reference.
3. By closing the raise speed contact, the valve ramp reference will start
increasing, thus increasing the turbine speed. The operator has control
over where the valve ramp reference is set at by using the raise speed and
lower speed discrete inputs. This allows the operator to heat soak the
turbine at different speed levels.
4. Continuing to raise the valve ramp reference will cause the speed to
increase until the speed matches the speed reference. The PID controller
will then take over control. The valve ramp reference will quickly ramp out
of the way (100%).
5. The operator can allow control the speed of the turbine with the raise and
lower speed discrete inputs.
Figure 4-3 Semi-Automatic Start-Up
Released