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Variable Frequency Drives Advanced Applications  

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Seminar Summary:

After attending this seminar, your VFD skills will be greatly enhanced and will help minimize downtime in your workplace. (see full course description)

 

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Training Course Syllabus:


Variable Frequency Drives Advanced Applications

Seminar Overview

This 2 day seminar is invaluable for technicians needing to know about drives in an industrial and process control environment. We will explore power quality in your facility, remote drive control, advanced communication between multiple drives, compensating for slip, the negative impact on the general duty motor, boosting torque, and how to determine when to skip frequency. After attending this seminar, your VFD skills will be greatly enhanced and will help minimize downtime in your workplace.

Day One - Discussion Topics

Electrical Basics Review
  Personal Protective Equipment and Insulated Tools
  Electrical Hazards and Safe Approach Distances
  LOTO (Lockout – Tagout)
  Meters: Mulitmeter, Clamp-On, Megohmmeter
  Motor and Control Circuit Basics, and Troubleshooting
 
What VFDs Do
   Benefits of Using a VFD
   Motion Control / Motor Speed
   Air and Liquid Flow / Pressure Control
 
Load Types
   Constant Torque - Conveyors, Pumps, etc
   Variable Torque - Fans, Pumps, Tools, etc
 
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, and Jog Circuits
    Status and Fault Indication
    Remote Speed Reference
    Monitoring of Motor Parameters

Wiring & Grounding VFDs
    Induced Signals
    Inductive, Capacitative
    Incoming Power (line), Motor, and Control Wiring
    Proper Grounding Methods
 
Controlling a VFD
    Keypad Controls
    Terminal Strip Control - Automatic, Manual
    Bus Communication Control
    Open and Closed Loop Control
    Manual and Automatic Operation
    Sensorless Flux Vector
    PI Loop Configuration
    Sensor or Transducer Feedback
    Motor Shaft Encoder Feedback

Day Two - Discussion Topics

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

The Electrical Hazards associated with VFDs
    Osha and NFPA 70E® regulations
    Electrical Hazards
    Risk Assessment
    Importance of LOTO (Lockout – Tagout)
    Proper Personal Protective Equipment
    Approach distances from energized conductors

How closed loop control can improve torque
    Give positive shaft position indication
    Maintain constant torque regardless of speed
    Develop continuous full torque at zero speed
    Function similar to a servo drive

How encoder feedback provides wider ranges of control
    More process variables to control drives
    Improved speed regulation and control
    Ability to run at a higher reference frequency
    High-speed control without high dynamic responses

Learn how to control multiple motors from one VFD
    Sizing the drive for total current
    Implementing external motor overload protection
    Correct sizing of conductors, contactors and overloads per NEC® Article 430

Types of transducers available for different applications
    Pulse Type (digital encoder)
    Voltage Feedback (0-5, 0-10VDC)
    Current loop 4-20 ma
    3-15 Pressure transducer

Learn how Power Quality is impacted by the VFD
    Harmonics in your facility
    Voltage Regulation
    EMI filtering
    Types of Solutions to mitigate Power Quality issues

How one source can control multiple VFDs
    Programmable Logic Controller (PLC)
    Building Management Systems
    SCADA Systems
    Advanced troubleshooting with VFD fault codes
    Comprehensive fault diagnostic system
    Fault Name and Description
    Corrective Actions
    Warning Message

Documentation of the parameters written within the drive manual to help solve advanced problems
    Startup and Power Quality reports
    Motor and load information
    Documentation of all parameters used

Learn how monthly and annual preventive maintenance can extend the life of your drive.

Credits:

1.6 CEUs

Training Class Time:

7:30 am - Registration
8:00 am - Class begins
12:00 - 1:00 pm - Lunch (on your own)
4:30 pm - Class ends

Seminar Summary:

After attending this seminar, your VFD skills will be greatly enhanced and will help minimize downtime in your workplace. (see full course description)

print this agenda print agenda for the Variable Frequency Drives Advanced Applications training seminar

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