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Safety First in Motor Controls Lab: Essential Guidelines for Injury-Free Learning

The primary goal of this Motor Controls Lab is to ensure your safety first and foremost—leaving without injury! To achieve this, always wear safety glasses and be prepared to handle various hazards, including electrical, lifting, and drop risks. Understanding electrical hazards, such as high voltage and potential electrocution, is crucial. Follow all safety protocols: labs must be unplugged during assembly, check circuits for shorts, and always have a clear escape route. Learn safe power-up procedures and how to measure voltage and current effectively.

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Safety First in Motor Controls Lab: Essential Guidelines for Injury-Free Learning

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Presentation Transcript

  1. EET 270 Safety

  2. First Goal • What is the first goal of this Lab?

  3. Answer: • To get you out of here without injury!

  4. Second Goal: • Learn Motor Controls

  5. Lab PPE • You must wear safety glasses at all times during lab or while working on trainers

  6. Trainers- Dangers • Electrical hazard • Lifting Hazard • Drop Hazard • Rolling Hazard • Escape Hazard (snap, crackle, run)

  7. Electrical Hazard • High Voltage: 120/208 VRMS • Arch/ Flash • Electrocution

  8. Electrical Hazard prevention • Trainers MUST BE UNPLUGGED while building the circuit • All troubleshooting will be done while trainer is unplugged (Cold)

  9. Power Up-Sequence • The circuit MOST HAVE a Power Indicator and E-Stop Circuit • Check Circuit for Shorts • Have circuit checked by Instructor • Notify those nearby before plugging in • Identify/clear your escape route

  10. Power Up- Part 2 6) Put Hand on Man Power Switch 7) Turn away and warn others 8) Turn on power 9) Place finger on start switch 10) Turn away and warn others 11) Press Start

  11. If Something goes wrong • Play it Safe! • Remove power • Power switch • Power Plug • Lab Power

  12. If a Fuse is blow • Do not reset a circuit breaker or replace a fuse unless you think you understand why it blew in the first place!

  13. Measuring Voltage • Use one-Hand Method • Voltage is measured across a Component

  14. Sketch in the Volt Meter to measure VR1

  15. Measuring Current • Current Flows Through a device 1) Amp-Clamp 2) In-Line Measurement • “Hard-Wired” Meter • Break Then Make

  16. Sketch in the Amp-Meter to measure IR1

  17. Snow Policy • Check my office phone OGM • Check BCTC Website • E-mail me if you will not be able to make it

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