Variable Frequency Drives - Wire-Setup-Troubleshoot Vfds

Wire, Setup, Maintain and Troubleshoot Modern VFD & Motor Systems Online Course

What you'll learn

VFD (Inverter Drive) theory of operation, volts per hertz, flux vector, pumps & fan mode applications explained.

Drive specifications and power requirements.

VFD and motor installation considerations.

Inverter duty motors, line and load reactors and braking resistor requirements explained.

Learn about applications that would benefit from utilizing VFD technology.

VFD safety considerations and lock out.

Auto-tuning, motor parameter set up, 2-wire control, 3-wire control, analog speed and multiple digital speeds, jog mode, and drive response to power failure.

Introduction and use of PC based drive setup software to configure the drive.

Maintenance, diagnostic and troubleshooting, fault codes and drive monitoring covered.

Reforming DC bus capacitors after long term storage procedures covered.

Requirements

Understanding of basic electrical switching components and power supplies.

Mechanical aptitude and understanding of motor driving systems such as; pumps, fans and conveyors.

An understanding of motor control terminology (2-wire control, 3-wire control).

Ability to read an electrical schematic diagram and correctly use an electrical test meter to measure voltage and ring out components.

Operational knowledge of asynchronous three phase induction motors (squirrel cage motors).

Awareness of electrical lock-out safety requirements.

Able to use PC based software programs.

Description

This course covers all aspects of working with modern variable frequency drives (VFDs).Generic terms that apply to all VFD manufacturers are covered. Wiring, programming and commissioning of different manufacturers are covered. In depth VFD setup is covered using professional drive commissioning software that is included free in the course. The student can follow along and adjust parameters using the software. Also included and demonstrated is VFD simulation software that replicates exactly the front panel buttons of a modern VFD. The student is walked through the steps of setting up a drive and important points learned over the years are covered. Periodic inspection and maintenance of VFDs and electric motors is covered. The tasks involved in maintaining and troubleshooting equipment are covered.Other important information covered in the course include:Working safely with VFDs and the hazards associated with VFD commissioningVFD power and control wiringLine, load and DC link reactorsThe DC busSink & source wiringVFD digital and analog inputs and outputsVFD motor brakingInverter rated motorsMotor turn down ratiosBasic VFD theory of operationBasic Motor theory of operationConstant torque and variable torque modesVolts per hertz ratiosPump & fan applicationsAuto-tuningVFD wiring schematics are explained and demonstrated with design software2-wire control transition and run at power up 3- wire control with forward and reverse

Overview

Section 1: Introduction, VFD & Motor Applications, Installation Considerations & Theory.

Lecture 1 Introduction

Lecture 2 Variable Frequency Drives - Introduction

Lecture 3 Benefits & Drawbacks of Using Variable Frequency Drives

Lecture 4 Selecting a VFD & Installation Considerations

Lecture 5 Electric Motors & VFDs

Lecture 6 Section 1 Conclusion

Section 2: VFD Hazards, The VFD Power Section, Power Wiring, Reactors & Braking Resistors

Lecture 7 Introduction to Section 2

Lecture 8 Safety Hazards & VFDs

Lecture 9 VFD DC Bus Measurement

Lecture 10 PowerFlex4 DC Bus Display Voltage

Lecture 11 VFD Power Wiring

Lecture 12 VFD Power Terminal Overview

Lecture 13 Panel Mount VFD Power Wiring

Lecture 14 Allen-Bradley PowerFlex 4 NEMA 1/UL Type 1 Enclosure Power Wiring

Lecture 15 Using Line, DC and Load Reactors with Variable Frequency Drives.

Lecture 16 Braking Resistors & Dynamic Braking

Section 3: VFD Control Wiring Overview, 2-Wire, 3-Wire Control & Motor Parameter Setup

Lecture 17 Introduction to Section 3

Lecture 18 VFD Control Connections

Lecture 19 VFD Sinking & Sourcing Inputs

Lecture 20 ATV12 VFD Sink & Source Wiring

Lecture 21 Allen-Bradley PowerFlex4 Sink & Source Wiring

Lecture 22 VFD 2-Wire Control

Lecture 23 VFD 3-Wire Control

Lecture 24 VFD 2-Wire and Disregard Run Command on Power Up Demonstration

Lecture 25 VFD 3-Wire Control & Multi-function Demonstration

Lecture 26 GA500 2-Wire HVAC Example - Wiring demo & programming using Yaskawa simulator.

Lecture 27 PowerFlex4 Pump Down Example Application - 2 fixed speeds controlled by floats.

Lecture 28 ATV12 3-Wire Control Wiring & Programming - using the quick start guide

Section 4: VFD Programming & Setup Using Drive Commissioning Software

Lecture 29 Introduction to Section 4

Lecture 30 How to Setup Schneider Electric SoMove VFD Programming Software

Lecture 31 How to Setup Basic Motor Parameters Using VFD Commissioning Software

Lecture 32 Connecting to the Drive, Auto-tuning & Switching Frequency Adjustment

Lecture 33 Setting up a VFD Controlled Ventilation Fan in Variable Torque Mode

Lecture 34 Setting up a VFD Controlled Conveyor

Lecture 35 Setting up a VFD Tank Emptying System with Ultrasonic Sensor Control

Lecture 36 Review of the Drive Commissioning Software & Extra Functions

Section 5: Variable Frequency Drive - Maintenance & Troubleshooting

Lecture 37 Introduction to Section 5

Lecture 38 Variable Frequency Drive System - Maintenance & Periodic Inspection

Lecture 39 DC Bus Capacitor Maintenance

Lecture 40 Industrial Control Equipment Maintenance Overview Document

Lecture 41 Example VFD Heat Sink Fan Replacement

Lecture 42 ATV12 Capacitor Reforming as per the User Manual Instructions

Lecture 43 VFD & Motor System Troubleshooting

Lecture 44 YASKAWA GA500 Fault Simulation Demo

Lecture 45 AB PowerFlex4 Fault Management - How to Test a Fault & Fault Management

Lecture 46 AB Powerflex4 - Using Monitoring or Display Parameters to Troubleshoot Drives

Lecture 47 Using Software to Troubleshoot and Monitor Drives

Section 6: Testing VFD Controlled Motors for Open Windings, Shorts and Ground Faults.

Lecture 48 Introduction to Section 6

Lecture 49 Understanding Insulation Testers and Some Rules to Follow

Lecture 50 Electric Motor Insulation Testing - Establishing Baseline Readings

Lecture 51 Motor Circuit Troubleshooting - Locating a Ground Fault on the Output of a VFD

Lecture 52 Dual Voltage Motor Winding Test and Temperature Effects on Insulation Resistance

Section 7: Course Resource Material, Answer keys & Material Related to the Course

Lecture 53 ANSWER KEY FOR QUIZ QUESTIONS & ASSIGNMENTS

Electrical Technicians, Electrical Apprentices, Electricians, Maintenance Techs, Electrical Beginners & Hobbyists.