More current, comprehensive, and powerful than ever, the new Seventh Edition of ELECTRICAL CONTROLS FOR MACHINES delivers a thorough introduction to the range of technologies found in today's electrical machine controls. Significant revisions have been made to this edition to reflect the latest practices and trends in industry. Completely updated, the circuit diagrams and the descriptions of the circuits illustrate a more modern representation of the controls circuits. The text also expands on the power and control circuitry required to operate electrical machinery. While it discusses the trend away from relay control to PLC control, the text maintains solid coverage of relay circuits. Its emphasis on the critical importance of worker and equipment safety in industrial settings includes a detailed explanation of the risk assessment process and a safety relay circuit. In addition, the text now includes international equipment specifications, reflecting the dramatic impact of globalization and integration of businesses on the way industries function.