{"title":"A retrofit of an analog DC drive with digital control on a winder","authors":"R.C. Linzel, H. Long, P. Collings","doi":"10.1109/PAPCON.1994.324480","DOIUrl":null,"url":null,"abstract":"Upgrading an analog DC drive to digital control does not always require a complete drive replacement. By retrofitting the existing power components with digital controls, all of the functionality of a modern digital DC drive can be achieved. Retrofitting can offer a significant cost savings over a complete drive replacement, since the existing power components, motors, power cables and cable support system may be reused. The benefits of an upgrade to digital control include improved drive response, simplified troubleshooting, elimination of tuning parameter \"drift\", greater flexibility in operating with different paper grades and orders, and an improved ability to control roll hardness. These benefits translate into reduced downtime, increased production efficiency and improved roll quality. The retrofit described in this case study has achieved the desired results in a cost-effective manner.<<ETX>>","PeriodicalId":269467,"journal":{"name":"Proceedings of IEEE Pulp and Paper Industry Conference","volume":"24 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1994-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"7","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of IEEE Pulp and Paper Industry Conference","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/PAPCON.1994.324480","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 7
Abstract
Upgrading an analog DC drive to digital control does not always require a complete drive replacement. By retrofitting the existing power components with digital controls, all of the functionality of a modern digital DC drive can be achieved. Retrofitting can offer a significant cost savings over a complete drive replacement, since the existing power components, motors, power cables and cable support system may be reused. The benefits of an upgrade to digital control include improved drive response, simplified troubleshooting, elimination of tuning parameter "drift", greater flexibility in operating with different paper grades and orders, and an improved ability to control roll hardness. These benefits translate into reduced downtime, increased production efficiency and improved roll quality. The retrofit described in this case study has achieved the desired results in a cost-effective manner.<>
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