Electrical Ladder Drawings, Schematics and Diagrams
Available in both virtual and in-person, instructor-led formats, this two-day Electrical Ladder Drawings, Schematics and Diagrams course delivers an essential skill in the field of equipment maintenance, installation or modification: the ability to read and understand electrical ladder drawings, schematics and diagrams.
Description
This course covers several types of industrial control prints for a variety of different motor-driven processes, with an emphasis on the differences between type and the purposes and flow of each. Students will participate in exercises to create schematic diagrams based on circuit descriptions and will learn to interpret schematic drawings in order to provide verbal or written circuit descriptions.
Course Outline
Day One - Discussion Topics
Electrical Fundamentals for Print Reading
- Types and Uses of Electrical Drawings
- Clarifying Terminology
- Effects of Current Flow
- Voltage Drop Calculations
- Understanding Ampacity Tables
- Importance of Electrical Drawings
- NEC® Drawing Requirements
- Ohm’s Law
Industrial Control Prints
- Component Symbols
- Transformers
- Fuses
- N.O. and N.C. Relay Contacts
- Relay Coils
- Switches
- Automatic Control Devices
- Timers
- Sensors
- Motors
- Solenoids
- Heaters
- Grounds
- Others
- Understanding Single-Line Diagrams
- Understanding Relay Operation
- Electrical Schematic Diagrams
- Motor Termination Diagrams
- Electrical Ladder Diagrams for Control Circuits
- International Drawings: IEC Symbols
- NEMA and IEC Circuit Comparison
- Reading & Interpreting Basic Motor Control Circuits
- Forward-Reverse Motor control
Day Two - Discussion Topics
Real-World Applications
- Conveyor Timing
- Air Compressors
- HVAC Controls
- Fluid Level Controls
- Material Handling Systems
- Process Temperature Controls
- Exterior Lighting Controls
- Generator Controls
- Chemical Process Controls
- Variable Frequency Drives
- Others
PLC Ladder Diagrams
- PLC Basics - Inputs & Outputs
- Comparison of Relay Logic to PLC Ladder Logic
- Real-World Applications