technology

Sael started the sectional drive of PM3 at Fedrigoni Paper Mill in Verona (Italy)

Sael started the sectional drive of  PM3 at Fedrigoni Paper Mill in Verona (Italy)

After having chosen SAEL as the supplier of its sectional drive in Verona in Italy, FEDRIGONI has entered the full production with the plant started up at the beginning of the year. Since the PM1 rebuilding in 2015, and its great payback reliability over 7 years of use, the paper mill assigned to SAEL the PM3 drive without any doubt.

The previous PM3 sectional drive was replaced by SAEL’s “ONE drive” platform which uses long life inverters. Those inverters are especially made for paper mill applications. Also in this case, the choice immediately paid off the paper mill in terms of efforts made.

The start-up went fluid, on time with the paper mill target (very difficult to be achieved in these periods of scarce availability of materials). Thanks to the new DCS Scalink, with two 22 inch screens installed in 2 different engineering stations – having redundancy system integrate – the paper mill can manage the entire machine, controlling the production at the best.

Moreover, the new control desks will be distributed along the board machine, in order to give a completely new prospect and dynamic to the operators of the paper mill, having the option to control in an absolute way the complete process: from the formation of the paper to the Pope reel.

The “ONE drive” platform

The “ONE drive” platform, was made the paper industry and entered in the market in 2011. In 2018 was upgraded by the “liquid cooling” solution, immediately proved its efficiency and high performance. All SAEL drives for paper machine, winder, calander, wrapping machine and stock preparation, is always equipped with the “ONE” hardware card: identical to the others. The “ONE” card is supported by a flexible and extractable memory eeprom, that contains the data: easily to be replaced by anyone, even without experience.http://sael

No programming, or parameterization are required to restart the drive, in case of fault, like normally happens in the technical world with a connected PC. A simple system dedicated to the auto diagnosis for helping the paper mill to conduct unparallel trouble shooting. The platform “ONE drive” foresees the use of the latest generation Long Life capacitors, practically with an infinite life. The drives are equipped with components that are not in fear of aging (for example all the electrolytic capacitors with which every inverter is equipped with a 60.000-90.000 hours lifetime, our drives are substituted with film capacitors) and are easily repairable vs the competitors who are build drives in a more traditional way as all appliances are build. In case of fault they prefer to replace the entire drive. Also, the changing of models very frequently is always lurking; another nice idea to confuse the end customer that they must upgrade or get expensive spare parts.

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