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Teralba, Australia

Boulton G.,Hatch IAS | Davies R.,Hatch IAS | Edwards J.,Hatch IAS | Hochstetter K.,Hatch IAS | And 2 more authors.
Iron and Steel Technology | Year: 2010

Industrial Automation Services Pty Ltd. has undertaken a project to upgrade the BlueScope Steel 3,500-mm 2-stand. The hydraulic thickness control system (HAGC) system, incorporating the roll gap position and thickness controls, was implemented in Toshiba V 3000 PLC hardware programmed from dedicated server-PC using Toshiba V-Tool software. The HMI system and Toshiba proprietary ODG digital data logger were implemented on PC. Each Toshiba V 3000 PLC included a standard processor (AGC processor) for thickness control, screw position control, sequencing logic and communications, and a high-speed processor (HGC processor) for closed-loop position control of the hydraulic capsules. Sony Magnescale transducers installed in specially designed housings bolted to the cylinder wall measure the piston position by contacting a steel tray, which is bolted to the top surface of the piston. The transducers generate high-speed pulse trains corresponding to position changes.

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