Entry type: Application example, Entry ID: 22079222, Entry date: 09/17/2005
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MICROMASTER 4: PID filling level control with bumpless operating mode changeover

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Exclusion:

This application only applies to MICROMASTER 4 with Firmware < V4.0

 

Description:

PID controllers are used to control a wide range of process quantities. A typical application is a closed-loop level control for a cooling water reservoir. With this application, the water level must be kept constant in the reservoir, independent of the amount of water flowing into the reservoir. This means that the speed of the pump must be adapted according to the quantity of the water that flows into the reservoir order to pump-out the appropriate quantity of water. The actual water level in the reservoir is detected using a filling level sensor. Two pump operating modes should be provided - "automatic" and "manual". The mode is selected using a digital input, whereby the changeover between the operating modes is to be realized flying without shutting down the pump.

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Documentation (German) tipps_tricks_011_PID-Fuelstandsregelung_de.pdf ( 133 KB )
Documentation (English) tipps_tricks_011_PID_Filling_level_control_en.pdf ( 132 KB )

 

History

Version

Modification

11/2005 first edition

 

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