New-Tech Europe | June 2017

automated potato sorting plant - Schaltanlagenbau Gormanns

breaker, the switching statuses of the two components (ON) are used as a basis for making indirect assumptions about operation or detecting a shutdown. For real, reliable feedback, a hardware solution is additionally required, with a speed sensor, load shedding relay etc. Furthermore, the drive is switched off without advance warning in the event of an overload caused by the set current value being exceeded, and a fault is signaled in order to protect the motor from damage. This leads to unplanned interruptions to operation, impacting time and cost considerations. It is exactly at this point that the great benefit of the intelligent wiring and communication system becomes apparent: by evaluating the ongoing operating current at the Lorüns crusher and screening plant, SmartWire-DT makes it possible to

differentiate between the various operating statuses: ‘motor switched off’, ‘idling’, ‘operation’, ‘overload’ and ‘fault’. The individual load thresholds and time behavior can be freely programmed and individually configured for each drive task. In this way, the machine operator can identify upcoming faults promptly and intervene in the production process in time, before it is interrupted unnecessarily. Process monitoring – remote diagnostics Acque del Basso Livenza S.p.A in Italy operates one of the largest wastewater treatment plants in Portogruaro and the entire province of Pordenone on a continuous, fully automatic basis. Faults with motors or pumps in the plant are reported to remote technicians, who must

communication has already been tried and tested in many applications, including those presented in the following examples: Motor protection - reliable detection of operating statuses In upgrading their sand and gravel machine for the Lorüns crusher and screening plant, Keckeis from Rankweil, Austria, used the SmartWire-DT intelligent wiring systemwith the PKE electronic manual motor starter from Eaton. When used in combination with PKE manual motor starters, advanced drive monitoring is realized: the ongoing motor current can be continuously mapped and analyzed without cost- intensive analogue I/O technology. Using conventional motor control with a manual motor starter and circuit solution

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