Machine for making liquid or semi-liquid products equipped with fieldbus controlled inverter
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United States of America Patent
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Apr 14, 2020
Grant Date -
Jun 2, 2016
app pub date -
Nov 20, 2015
filing date -
Nov 28, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
A machine for making liquid and semi-liquid products includes a container for processing the products, a mixer operating inside the container, a heat exchanger, operatively associated with the container for exchanging heat with the product inside the container, a motor driving the mixer, and an inverter, connected to the motor for controlling operation of the motor. A control and operating unit, connected to the inverter sends command signals and receives control signals. A communication fieldbus, interposed between the inverter and the control unit allows transmission of the signals. The control unit is programmed to run a first algorithm of the state machine type configured to control the inverter, include the following states: transmission of a command to the inverter, standby for confirmation that the inverter received the command, transmission of a read request for an inverter operating parameter, standby for receiving the inverter parameter.
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