No.1009E 2012Automotive Technology Special Edition Development of SFC Control Systems |
| Category | TECHNICAL REPORT |
|---|---|
| Author | H. TAKAHARA Advanced Unitized Product Engineering Dept., Machine Tools & Mechatronics Operations Headquarters |
| Abstract | Conventionally, Programmable Logic Controller (PLC) programs used for equipment control in plants, etc., were written in ladder language, decipherable only by trained or fully experienced control engineers or electrical maintenance personnel. However, by introducing Sequential Function Chart (SFC) which display the entire cycle of a production process in a flowchart-like format, even operators with basic operation skills can comprehend equipment operation flow and stopped states, allowing them to easily pinpoint problem areas. JTEKT will use SFC not only on our existing in-house equipment, but also on that of Toyota group companies, other vehicle manufacturers, components manufacturers and so on. The adoption of this method on JTEKT machine tools will also be proactively promoted. |
| Keyword | high-precision machining, thermal displacement, work temperature compensation, coolant temperature compensation |
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