— 01 After a consultant changed tuning param- eters of the mill’s new control system, ABB was called in to find and correct the problem. — CASE STUDY Scandinavian paper mill enhances productivity and quality with ABB AbilityTM Advanced Digital Services Variance partition analysis identifies issues, improves performance and increases product quality When a paper machine suddenly exhibited signs of excessive moisture variations, ABB applied Advanced Digital Services to enhance production and product quality. Sudden moisture increase threatens paper quality Seven months after successfully installing a new ABB System 800xA control system to bring moisture variations under control, a Scandinavia paper mill’s engineers experienced a sudden increase in moisture variations in the p

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