Machine Controls IISKOT 192
Prerequisite: SKOT 191. Machine Controls II is a continuation of Controls I with special emphasis placed on diagnostic troubleshooting techniques. Primary objective of the course is to enable maintenance personnel to discuss machine functions or malfunctions with machine and control system designers. The course will also benefit toolmakers and machine builders to understand the overall operation of complex machinery they build and/or assemble. (45-0)
Outcomes and Objectives
Understand basic electrical panel layouts.
- Examine a panel's component placement.
- Examine the proper use and placement of terminal strips.
- Understand the importance of neatness inside an electrical panel.
- Examine ladder diagrams and study voltage flow.
- Examine specialty circuits used in machine control.
Understand basic motor theory.
- Examine DC motor theory and operation.
- Examine single phase motor theory and operation.
- Identify split phase motor operation.
- Identify capacitor start motor operation.
- Identify induction start motor operation.
- Identify universal motor theory and operation.
Understand 3 phase induction motor operation.
- Examine 3 phase AC motors construction.
- Identify wiring principles for forward and reverse motor operation.
Understand servo and stepping motors.
- Examine various stepping motors and discuss how stepping is obtained.
- Examine various stepping motors and discuss how accuracy in motion is obtained.
- Examine servo motors and discuss principles of operation.
- Identify that servo motors are constructed opposite DC motors.
Understand tachometers, encoders, absolute position encoders and resolvers.
- Examine and compare DC and AC tachometers.
- Examine and discuss motor encoder operation.
- Identify the difference between relative necoders and absolute position encoders.
- Identify the operation of motor resolvers.
Introducing programmable controllers.
- Identify computer numbering systems.
- Identify basic logic control functions.
- Identify and discuss the role of PC microprocessors.
- Identify and discuss the need and role of memory types.
- Identify various input/output configurations.
- Examine data communications systems and operation.
Understand programmable input and output cards.
- Examine and compare various input cards.
- Examine and compare various output cards.
- Examine and compare various analog I/O cards.
Understand similarities of PC logic and relay logic.
- Identify PC logic prints and compare to relay logic prints.
- Examine how PC logic is input into a programmable controller.
Understand trouble-shooting techniques and methods.
- Examine PC logic prints and relay prints to understand current flow.
- Identify possible I/O problems and how to recognize them.
- Identify use of test equipment in trouble-shooting relay circuits.
- Identify trouble-shooting tricks when working with PC's.
- Identify common faults in machine control.