Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.



Published on

Published in: Technology
  • Be the first to comment

  • Be the first to like this


  1. 1. Optimao In control since 1995 DRIVE SOLUTION FROM OPTIMA DOUBLES PRODUCTIVITY FOR LAMINATING LINEAPI is a leading manufacturer of high quality foil, holographic and laminateproducts for use throughout the packaging sector. The company had beenoperating the laminating line at its plant in Stockport for some time and aspart of a planned refurbishment wanted to try and improve the performanceof the web machine while also reducing its operating costs.The original design of the laminator used a mechanical system with machineshafts or rollers being driven from PIV (positively infinitely variable)gearboxes, powered from DC motors by a complex arrangement of beltsand pulleys. This configuration was unreliable, difficult to maintain andexpensive to run due to the relatively high power consumption and ongoingmaintenance costs. In addition, the existing drive system made productchangeover a lengthy process that generated considerable scrap, as eachPIV required manual adjustment. Furthermore, the system provided poorcontrol of web tension, making it almost impossible to run the lighter andmore specialized films and foils that are now commonly used by API; as aresult, the machine was often idle for long periods.The solution developed by Optima replaced the common mechanical drive system with a series of individualdrives, each controlling its own roller section with discrete control loops. The drive system configurationincluded 13 closed-loop AC vector motors, each controlled by Parker AC890 variable speed drives, with acommon DC bus, generated from a further AC890 Series active front end. This arrangement providesextremely efficient power management with energy for the drives and motors being naturally balancedbetween units that are motoring and those that are regenerating when braking. The control capabilities of theAC890 drives also enabled Optima to specify a smaller PLC than would have otherwise been required, tomanage the overall machine control. Michael Hill points out, “We’ve worked closely with Parker to ensure that the new system is as energy efficient as possible and have managed to reduce the machine’s power consumption by around 45%. Additionally, the AC890 drives have helped us make considerable improvements to machine functionality, to reduce setup times and make it easier to operate. For example, as standard the drives are supplied with powerful tension control features, and the ability both to control line speed set points and set speed ratios between drives. They also have onboard I/O, which we used for speed set points or load cell signals. We have been able to offer our customer real benefits in terms of machine performance and productivity, with the line now being in almost constant use, rather than standing idle for long periods”. WE HAVE COMPREHENSIVE SYSTEMS & MACHINE SAFETY EXPERIENCE WITH… o Siemens, S5&S7 PLC, WinCC Scada, MasterDrives, Sinamics & Simotion o Allen Bradley PLC,SCADA & Drives o GE Fanuc PLC&SCADA o Fortress GuardMaster o Parker SSD Drives o Wonderware SCADA o Profisafe o Pilz, PSS, PNOZ Multi SICK UK o Intellution SCADA o SICK UK o Schneider o VISIT OUR WEBSITE AT WWW.OPTIMACS.COM FOR FURTHER DETALS