Canadian Trainco presents
 

Variable Frequency Drives On-Site Training

This seminar will teach you how to troubleshoot common VFD problems, take care of your own equipment, and avoid costly repairs or service calls.

Course Description/Agenda

If your building facility, plant equipment or OEM system has Variable Frequency Drives, this is the perfect opportunity for you to unlock the secrets and dispel the myths generally associated with these high tech devices. After attending this seminar you will go back to your workplace with real world, practical knowledge and be able to immediately apply what you have learned so that you can keep your equipment up and running. This seminar will teach you how to troubleshoot common VFD problems, take care of your own equipment, and avoid costly repairs or service calls. Now that�s �Real World� training!

Training Outcomes

Upon completion of this course, the student will receive a training certificate indicating that he or she has learned to:

• Identify hazards associated with working on VFDs
• Understand the importance of safe work practices
• Troubleshoot problems associated with VFDs and associated automated control systems
• Recognize the main components of a VFD system
• Understand the different methods of controlling a VFD
• Be familiar with installation requirements
• Understand motor/load requirements
• Know how to respond to various WARNING or FAULT indications on the VFD
• Know the preventative maintenance requirements when using VFDs

Course Outline / Agenda

This seminar is designed for any person requiring a general knowledge and understanding of Variable Frequency Drives (VFDs).  In the area of Facilities Maintenance we�ll cover specific applications involving HVAC equipment such as air handlers, hot water and chilled water pumps, and cooling tower fans.  In the realm of Industrial Maintenance we�ll look at a variety of other specific applications including those requiring constant torque operation.  And if you have a unique VFD application, just let our instructor know.  If he can�t help you with your specific problem, we�ll refund your money - guaranteed!

Equipment operators, technicians and maintenance personnel as well as electricians and facility managers will benefit from attending this seminar.  Course graduates will have learned how to solve common VFD problems resulting in reduced downtime.  This means a lower cost of operation with less dependence on outside service contractors.  Training will include AC motors, VFD configuration, component layout, applications, various control methods, and installation requirements.  Common problems and troubleshooting techniques will be covered as well as VFD operation, setup, programming and preventative maintenance.  Other related topics like power quality and harmonics will also be discussed.  And to be 100% certain you get the training you need, students are encouraged to bring schematics and diagrams of the VFDs in their own facility!

DISCUSSION TOPICS -

VFD SAFETY ISSUES
- (PPE) Personnel Protective Equipment
- Safe Approach distances
- Electrical Hazards
- LOTO (Lockout - Tagout)
- Insulated Tools

METER REVIEW
- Mulitmeter
- Clamp-On
- Megohmmeter

MOTOR BASICS REVIEW
- Motor Design
- Single Phase and Three Phase
- Motor Starters
- Motor Troubleshooting and Replacement

CONTROL CIRCUIT BASICS
- Electrical Symbols and Schematics
- Control Circuit Troubleshooting
- Fuse Replacement

VFD HISTORY
- Introduction
- Semiconductors in VFD Design
- SCRs / GTOs / Transistors / IGBTs / LSI

WHAT VFDs DO
- Motion Control / Motor Speed
- Air Flow / Pressure Control
- Liquid Flow / Pressure Control
- Eliminates the need for:
- Variable Transmission or Sheave
- Variable Vanes or Dampers on Fans
- Variable Valves on Pumps

BENEFITS OF USING A VFD
- Energy Savings
- Easier Maintenance
- Enhanced System Monitoring

LOAD TYPES
- Constant Torque - Conveyors, Positive Displacement Pumps, Superchargers
- Variable Torque - Centrifugal Fans or Pumps, Saws, Routers, Planers

VFD OPTIONS
- Bypass - Two or Three Contactor Style, Disconnect Switch Style, Soft Starter
- Fusing - VFD or Bypass Protection
- Input / Output Reactors
- Motor Overload Device
- Transient Protection
- Auxiliary Relays
- Power Line Phase Reversal Detection

INSTALLATION OF A VFD
- Environmental Concerns
- Clearances
- Conduit Entry

CUSTOMER CONNECTIONS
- Safety Circuit
- Start / Stop
- Jog
- Status Indication
- Fault Indication
- Remote Speed Reference
- Monitoring of Motor Parameters

WIRING & GROUNDING VFDs
- Induced Signals
- Inductive, Capacitative
- Incoming Power (line) Wiring
- Motor (load) Wiring
- Control Wiring
- Proper Grounding Methods

CONTROLLING A VFD
- Keypad Controls
- Terminal Strip Control - Automatic, Manual
- Bus Communication Control
- Open Loop Control
- Manual Operation
- Automatic Operation
- Sensorless Flux Vector
- Closed Loop Control
- PI Loop Configuration
- Sensor or Transducer Feedback
- Motor Shaft Encoder Feedback

VFD SETUP, PROGRAMMING and TROUBLESHOOTING
- Language & Display
- Control Modes
- Open Loop, Closed Loop
- Motor Data
- Motor Power (kW) and RPM
- Voltage, FLA Current
- Service Factor, Power Factor
- References & Limits
- Motor Speeds - Min, Max and Preset
- Ramp Times
- Speed Reference
- Skip Frequencies
- Limits for Alarms or Faults
- Inputs / Outputs - Analog, Digital, and Relay
- Application Functions
- Reset
- Flying Start
- Sleep Mode
- Switching Frequency
- No Load
- Phase Loss
- Closed Loop Functions
- Normal / Inverse
- Anti Windup
- Start-up Frequency
- Integral Time / Differential Time
- Proportional Gain / Differential Gain
- Lowpass Filter

What You Will Take Home

• American Trainco Seminar Manual - detailing all presentation material covered in the class
• Personalized Training Certificate with 1.6 CEUs (Continuing Education Units) for attending this two-day seminar. American Trainco CEUs are approved by the MTAA.
• All the information you need from asking our instructors specific questions about your own equipment or facility.

Continuing Education Units (CEUs)

All students attending our seminars receive a personalized Certificate of Completion and .8 CEUs (Continuing Education Units) per day of training. Over 40,000 employers and government agencies who have sent their employees to our classes accept American Trainco CEUs for continuing education requirements. Our administration and record keeping practices meet or exceed the standards of ACE (American Council on Education) and we are able to provide transcripts of all classes attended and tests taken by individual students. Please contact us if our CEUs are not yet accepted by your authority. We will initiate an application to get the approval process started.

No Risk Registration & Money-Back Guarantee

If you're not yet sure you'll be able to attend a seminar, you can still make a reservation to hold your space in class. While payment is due prior to the start of the seminar, you may choose a full refund or credit for cancellations made at least 24 hours in advance. Student substitutions can also be freely made at any time prior to the start of the seminar. Refunds will not be issued for registered attendees who fail to show up and have not given a notice of cancellation.

In the rare event that should you not receive the expected value after attending our seminar, simply notify us in writing of your reasons and your money will be promptly refunded.

More Seminar Information

Canadian Trainco Delivery Method  On-Site Training Also Available As  Seminar