Application Example
Original instructions
Illustration
The following graphic presents how a turbo machinery application can manage the velocity of a diesel engine or reciprocating machine with no regular pulses over one revolution:
Example Steps Description
The following table describes the above steps of the example:
Step
Description
1
Machine is idle
2
Application controls the machinery for starting. The velocity increases to reach the nominal speed in 2.5 s.
3
Application stops increasing the velocity and maintains a constant speed. At this step, the application commands the module to learn the pattern wave form at a stable speed of revolution.
4
Application can increase the velocity after the module has learned the pattern. Pattern recognition is available right now. It could be enabled while the application brings speed next to nominal position. For more detail, refer to chapter RPM during Pattern learning.
5
The application fine governs the machinery for nominal velocity. At this step, the pattern recognition must be enabled to provide the best accuracy of the measure. Typical system accuracy for RPM is +/- 5 %.
6
Application controls the machinery stopping with or without application of the pattern recognition.
7
The pattern recognition is not mandatory in step 7.