Wire, Setup, Maintain and Troubleshoot Modern Variable Frequency Drive & Motor Systems

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.

Refog DC bus capacitors after long term storage procedures covered.

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 teology (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.

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 commissioning

VFD power and control wiring

Line, load and DC link reactors

The DC bus

Sink & source wiring

VFD digital and analog inputs and outputs

VFD motor braking

Inverter rated motors

Motor turn down ratios

Basic VFD theory of operation

Basic Motor theory of operation

Constant torque and variable torque modes

Volts per hertz ratios

Pump & fan applications

Auto-tuning

VFD wiring schematics are explained and demonstrated with design software

2-wire control transition and run at power up

3- wire control with forward and reverse

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






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