14 OPTIMA CONTROL SOLUTIONS


Pulp Paper & Logistics


Migration strategies for your control systems


What are the driving forces behind a decision for upgrading the systems that control paper machine processes? Michael Hill* discusses the improvements that can be expected when 


U


pgrading the process control systems on pulp and paper making lines implies


the use of fundamentally  For example, by using AC


motor and drive technology to  or acquiring sensor data over Fieldbus networks rather than by relying on long-distance hardwired  Most new drive motors already include the latest technologies  is expected from an original equipment manufacturer (OEM) so that it can maintain     It is generally accepted that an  of whether to embark on an upgraded machine control system at some future point during the   


 control system’s reliability has declined so far that it impacts  commercial performance or its vulnerability to failure and that the consequences are considered too  


January/February 2014


A 25 per cent improvement in productivity was achieved on the Jagenberg slitter-rewinder at the Tullis Russell Glenrothes mill after the control systems were brought up to date by Optima Control Solutions


Upgrading the ageing control


system of any machine involves   control equipment, re-designed using modern control techniques  of using the latest, supportable 


Why should paper makers migrate their systems? In business, any decision must  monetary investment needs 


 So what improvements can be reasonably expected from the decision to migrate to up-to-date controls systems? We consider here a few of the


more frequently undertaken 


 equipment to digital control equipment  of low cost microprocessor  both industrial equipment


  remember tuning a radio with a        of a variable speed motor is  analogue control systems due to temperature, for example, means that the best speed that can be 


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