Duration:
5 days
Prerequisites:
Attendance on our Industrial Electrics & Control Fundamentals Part 1 course or equivalent level of basic electrical knowledge & competence. To get the most benefit from this course (& not hold back other others), delegates should be able to successfully complete the pre-course assessment.
Aims:
This course is designed to consolidate the learning from the Part 1 course, building & further developing industrial electrical experience (ideally within 6 months of Part 1). Because modern industrial electrics is quite different from general electrical courses, we introduce delegates to additional & more complex troubleshooting & testing of a wider range of common control & power switching components including sensors together with an introduction to safety circuits. Troubleshooting experience will be provided on a self-build Fwd & Rev Motor control/ switching rig with additional group practice provided on our industrial motor fault simulator. Delegates will also learn the basics of motor speed control with an introduction to VSDs (Variable Speed Drives) & the important basics of PLC systems in modern production systems.
Content MODULE 1 Quick review Electrical Health & Safety Importance of HSE GS38 (Safety of Test Leads & Probes) The importance of the HSG 85 (Safe Working Practices) Safe working practices & Lock Off & Check for DEAD The importance of EAWR in particular Reg. 14 Live Working & Testing
Developing Electrical Skills More detailed on how industrial electrical components function & are tested Electrical features & key parameters Safe testing methods used with live circuits Cold testing of the following industrial electrical components Safety Switch Isolator Switch Relay/ Timing Relays Safety Relays Solid State Relays Contactors Transformers & Power Supplies RCD & RCBO (Residual Current Devices) MCB (Miniature Circuit Breaker) MPCB (Motor Protective Circuit Breaker) MCCB (Moulded Case Circuit Breakers)
Electrical diagrams in practice Tracing wires & cables from the electrical diagram Tracing circuit connections across multiple diagram sheets Relating components on the diagram to physical components in the panel Understanding the importance of wiring identification systems
MODULE 2 Practical Motor Power Switching with Forward & Reverse switching Developing the build of a motor control to add in contactors & Fwd/ Rev switching Testing the forward & reverse control switching Testing the Power Switching circuit to a 3 phase motor Developing motor power switching troubleshooting skills 3 phase testing & troubleshooting of 3 phase motors Practical exercises in troubleshooting control & power switching faults
Industrial Electrics & Control Fundamentals Part 2
Industrial Electrics & Control Fundamentals Part 2
MODULE 3 Motor characteristics & Starting methods Understanding the detail on the motor rating plate Motor frame sizes Voltage tapings Motor Power rating Concepts of 2 speed motors & how they are wired Slip Ring motors High Efficiency motors EFF1, EFF2 Star configuration of motor & benefits/ disadvantages Delta configuration of motor & benefits/ disadvantages Motor suitability to use with VSD (Variable Speed Drives) Advanced testing on 3 phase motors including insulation testing How to log key information about your on-site motors Motor maintenance Introduction to DC motors, Testing & Troubleshooting Overview of Single phase motors, Testing & Troubleshooting Overview of 3 phase motors, Testing & Troubleshooting Overview of Brake motors, Testing & Troubleshooting Servo motors, testing
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MODULE 4 Machine Safety concept & practices Understanding the importance of machine safety Machine safety standard (EN 60204-1) Interlock systems & types of component Rope operated switches E Stop circuits & types of switch How a safety relay is incorporated into circuit Types of safety relay, Dold & Pilz Sample circuits Practical build & basic faults
Sensors explained Review of what is available & widely used NO (normally open) or NC (normally closed) & alarm types PNP & NPN types 3 wire & 4 wire types Fixed, adjustable & teachable sensors Digital & analogue types explained Inductive sensors explained Capacitive sensors explained PECs sensors explained Ultrasonic sensors explained Photo Electrical Sensors, through beam, reflective, diffused, background suppression types Practical exercises to do the following Set up & configure Test if faulty Use of sensor tester Practical exercises in connecting, setting-up & swapping various types of sensor
MODULE 5 An introduction to Variable Speed Drives & PLC control Variable Speed Drives explained An overview of motor speed control & introduction to VSD How do VSDs work? PWM (Pulse Width Modulation), the motor drive voltage & waveform Types of VSD available Summary of VSD features VSD Error codes Types of connection The importance of the DC link & H&S aspects Examples of wiring diagrams Practical use of a VSD to control a 3 phase motor
An introduction to PLC control The basics of PLC hardware to control a program Concepts of sequence control with input & output Types of PLC memory to store the program Practical exercise to connect a simple PLC controller with the following: Connect inputs to sensors & switches Connect the output to a VSD to control speed & direction of motor rotation