b'maintenance and operating costs for thethe scheduleTo ensure a high level of safety forthe switchgear room for the paper longer term. The comparatively higherwas adheredoperators and equipment at PM1, themachine, more than 70 m of control investment cost is amortised over ato andnew automation system also includescabinets was moved in the space short timeframe, and lifecycle costs arethe paperthe fail-safe S7-410 controller. Thisof two days at the beginning of the reduced overall. machine wasmeans the conventional emergencydowntime. Following connection to the ready to bestop components are replaced withprepared cables, selected water-cooled UNIFORM PCS 7 PROCESS CONTROL SYSTEMpowered upfail-safe I/Os. Safety-relevant signalsconverters were put into operation on a WITH STANDARDISED SIPAPER APL SECTORafter justare communicated via the same buspartially automated basis and in close LIBRARYnine days system as the process signals. Thecoordination with third-party business The entire solution for the automationstandardised, fail-safe PROFIsafeareas, using specially developed scripts and drive system is based on the PCScommunication protocol prioritises,and prepared databases.7 process control system with theprotects, and monitors the fail-safe standardised SIPAPER system solutionsignals. This means safety-relevantAll these elements ensured the for the Fibre industry. With it, Siemensfunctions can be put in place withschedule was adhered to and the Energy provides a comprehensive toolno additional installation cost, whilepaper machine was ready to be for implementing process automation,maintaining a high level of flexibilitypowered up after just nine days. Using drive controllers, energy supply, ITin terms of signal connections andthe PCS 7 SIPAPER standard, system solutions, and services.subsequent adaptations. commissioning of the paper machine was completed in below ten hours. The business areas of multi-motorNINE DAYS FROM START TO FINISHHOW WASThe lower noise emissions, thanks drives, core cutter, and roll cutter wereTHAT POSSIBLE? to the water-cooling installed in the available separately in various olderTo upgrade the existing drive system,switchgear room, and desired system PCS 7 versions. As part of the upgradeSiemens Energy was tasked to replaceavailability level in excess of 99.8 project, these were all uniformlythe entire switchgear during a ten-daypercent were both achieved.migrated into PCS 7 V9.0 SP1,downtime. combined into a single multi-project,PROJECT MANAGEMENT, CONTRACTUAL and structured within a client-serverBeing perfectly prepared in line withSTRUCTURE, AND SERVICEarchitecture. plant requirements was the key toSiemens Energy was responsible success. The entire conversion wasfor the project overall, including The new multi-motor drive wasplanned beforehand, in detail: workflowcomponents and systems from the implemented using the SIPAPER Drivesand assembly plans were drawn up,Siemens portfolio. APL standard, the core cutter with theand assembly tasks like cable runs SIPAPER DCS APL standard, and theand piping were also performed inBy making use of regional automation roll cutter using the SIPAPER Winderadvance. Many different businessand drive specialists for the Fibre APL standard. The main focus wasareas had to be coordinated, fromindustry, the paper mill can rely in the on ensuring there were no changesspecial logistics firms to electricalfuture on short response times and in function for the system operators.assembly and assembly of the water- close attention from service employees The use of water-cooled frequencycooling system. Shortly before thefamiliar with the system. converters for the first time made itmill was powered down, all system possible to refine and implement thecomponents for the multi-motor driveProgroup is very happy with the water-SIPAPER Drive APL standard for theunderwent preliminary commissioningcooled frequency converters, and will WinCC/panel control system in theon-site, including functional testing, intherefore also apply this solution not redundant water circuits and DC links.a separate warehouse adjacent to theonly for its entire multi-motor drive The Comfort Panels will be used inpaper machine. system but also for the larger process the future for on-site operation in thedrives at its planned paper mill PM3 in switchgear room. Via a temporary direct access toSandersdorf-Brehna.WORLD PULP&PAPER 53'