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Blue Sky Hotel, Balikpapan | 28-30  November  2011 | Rp. 6.000.000,-/participant (non residential)

Course Description:

The objective of this variable frequency drives training course is to build confidence in the student by providing him/her with useful information and practical hands-on exercises that demonstrate the relevance of the course material.

Who Should Attend:
This course is recommended for electrical engineers, technicians, designers and electricalmaintenance personnel responsible for variable frequency drives.

Course Objectives:
This course is designed to enable participants to:

  • Properly Matching A Drive to A Machine
  • Choosing the Correct Motor
  • Choosing the Best Type of Variable Frequency Drive (VFD)
  • Identify & Correct Drive System Problems
  • Identify & Test Major Drive Components
  • Perform Start-Up of an AC Drive
  • Program & Adjust the Drive for Desired Operation

Course Outline:


  • Evolution of Adjustable Speed Motor Control
  • Modern Types of Variable Frequency Drives

II. Mechanical Theory

  • Horsepower Defined
  • Torque Defined
  • Example Horsepower and Torque Calculations
  • Common Types of Mechanical Loads
  • Characteristics of Variable Torque and Constant Torque Loads

III. Basic Electricity Theory

  • Electrical/Hydraulic Circuit Analogy
  • Resistance, Voltage, and Current Defined

IV. Introduction to AC Motors

  • Examination of Motor Nameplates and NEMA Designations
  • Locked Rotor Current and Full Load Current
  • Anatomy of a Motor
  • Magnetic Poles and Frequency as Related to Motor Speed
  • Torque Characteristics Motors Operated “Across-the-Line”
  • Torque Characteristics of Motors Operated on VFDs
  • Effects VFDs on Motor Operation and Life Expectancy

V. PWM AC Variable Speed Drives

  • Common Types of PWM Drives
  • Examination of the Main Power Circuit
  • Electronic Component Identification
  • The PWM Wave Form
  • Voltage and Frequency Relationships and Effects on Motor Performance
  • Control of Drive System Torque and Horsepower Output
  • Torque Output Comparisons of AC Drives VS. Conventional Means of Speed Control
  • Standing Wave (Reflective Wave) Phenomena on Motor Cables
  • Disassembly of an AC Drive
  • Component Identification
  • Various Designs of Drives
  • Reassemble, Test, Start-Up of AC Drive With Proper Techniques
  • Hands-On Programming and Operation of an AC Drive and Motor
  • Adjust Minimum and Maximum Speed
  • Reset Drive to Factory Defaults
  • Adjusting Torque Output
  • General Drive Programming
  • Methods of Speed and Torque Control

VI. Applications

  • Methods of Proper Drive Selection
  • Multi-Motor Drive Systems With Example Problem
  • Using VFDs to Eliminate Geared Speed Reducers
  • Effects of AC Drives on Geared Speed Reducers
  • Replacing Mechanical Speed Changers With VFDs

VII. Conclusion and Summary
Ir. Teguh Santoso

During the training, participant will be in interactive learning mode, by actively join the group discussion, sharing concepts, role plays, games and case studies.

Vanue/Date :

  • 28-30 November 2011
  • Blue Sky Hotel, at Let. Jend. Suprapto I, Balikpapan Kalimantan Timur.


  • Meeting room hotel (****)
  • Training Kit
  • Coffee Break & Lunch
  • Exclusive Souvenir
  • Certifikat
  • Soft copy materi

Invesment :

  • IDR 6.500.000,-./participant NON RESIDENCIAL.
  • IDR 6.000.000,-/participant NON RESIDENCIAL. For sending 3 participant from the same company
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