Basic CNC Maintenance

Designed to provide a basic overview of CNC electrical maintenance, topics include: electrical safety; basic industrial single phase and 3 phase; intro to AC & DC circuits; general CNC construction and electrical systems; basic servo/spindle drive systems; introduction to I/O; introduction to instrumentation (multimeter/DMM, megohmeter).

Advanced CNC Maintenance

Course is designed to provide an understanding of general CNC system architecture; variations in specific controls are covered in individual courses offered separately. Students gain knowledge of CNC construction, with emphasis on the relationship between NC/PMC & the machine tool; types of memory used for data storage; how the control is interfaced to the machine; diagnostics & parameters, with an understanding of the difference between the NC and PMC types; feedback devices; servo/spindle drives & motors; power supplies and control boards.

CNC Electrical Maintenance

This class covers the fundamental aspects of the electrical side of a CNC Machine. Topics include: electrical systems in a CNC machine, including both AC and DC circuits; CNC construction, including the relationship between NC, PMC and machine tool; servo & spindle drive systems, including feedback devices; NC and PMC parameters; diagnostics and I/O; introduction to instrumentation (multimeter/DMM, megohmeter).

CNC Communications

Students will learn how to upload/download part programs, parameters, offsets, using RS-232 and through memory cards, USB and other peripherals on Fanuc, Yasnac and Okuma controls (per control capabilities)

Electrical Diagrams

This course is designed to cover the basics of machine tool electrical diagrams and the common variations between manufacturers. Students will be exposed to industry standard symbols and nomenclature, using both current and previous standards. During the course the instructor will use a machine with the machine's schematics to show students the correlation between the drawings with the components and wiring in the machine. Students are strongly advised to bring in electric drawings of machines they work on as they may differ from the drawings used in class.

Ladder Logic

This class is designed to give students an understanding of how the machine tool ladder is utilized for troubleshooting and tracing the machine logic. Definitions of the ladder symbols with an understanding of mathematical functions and how to trace the logic using the search function will be discussed. Topics will also include the PMC parameters utilized by the ladder and the classification of addresses. Students will troubleshoot machine problems using the ladder and machine schematics.

CNC Electrical Troubleshooting

This course teaches how to troubleshoot common electrical problems found on a CNC machine. The course explains the fundamental troubleshooting process and how to gather and utilize information during the troubleshooting procedure. The use of electrical schematics, maintenance manuals, the machine PLC and other resources will be discussed in class and used during the hands-on portion of the course. The first day is a mix of classroom and some hands-on; the second day is almost entirely hands-on troubleshooting, where students work together in a group to troubleshoot problems related to the various electrical systems on a CNC machine.