'The machine won't start' is the least informative sentence in maintenance. A control circuit is a chain of contacts, and every open link in it produces exactly the same symptom: a tripped overload, a failed coil, a float switch stuck open, a timer that never times out, a drive sitting on a fault code. Finding which link is open quickly, without energizing something you shouldn't, is a learnable skill rather than a knack.
This course teaches the methods for electric motor control circuits and AC variable-frequency drives. You will follow troubleshooting safety rules, work through systems-level troubleshooting, and test components individually using digital multimeters, clamp-on ammeters, and PLC status indicators. Coverage includes manual and magnetic motor starters; reversing magnetic starters with overloads; control transformers; control relays and timer relays, including on-delay timing; drum and selector switches; manual switches; and limit, pressure, and float switches; along with AC VFD drives with volts-per-hertz capability for driving three-phase AC motors. You will work on basic motor control and reversing circuits as complete systems, not just as isolated components.
This course prepares you to test for the Smart Automation Certification Alliance (SACA) C-204 Motor Control Troubleshooting 1 certification.