This document applies to variable frequency drive vfd system installations meeting all of the following criteria. Each part of a variable frequency drive has the following function. A converter is a device to create the dc from the ac power supply. Upon completion you will be eligible to become an eaton certified master service provider. Variable frequency drive vfd specifications for onfarm pumps 1. Vfd training course benefits learn the fundamentals of variable frequency drives. The vsi, or variable source inverter, was the earliest solid state vfd. Choosing the right vfd for an application will benefit rotating equipment by providing less wear on the electric motors where applied. One who has skills and knowledge related to the construction and operation of the electrical equipment and installations and has received safety training to recognize and avoid the hazards involved. Variable frequency drives vfd basics 1 variable frequency drives vfd basics 2 what is a vfd. Variable frequency drive vfd training system learnlab. Variable frequency drive vfd specifications for onfarm. The vfd training program starts at a basic level and builds, avoiding the need for any technical prerequisite, other than the desire to increase your knowledge and understanding of variable speed drives.
Variable frequency drives vfds popular speed control devices used in industrial, commercial and residential applications. This variable frequency drives course introduces students variable frequency drives and their applications in industrial plants and commercial buildings. It is sometimes called a sixstep drive because of the voltage sent to the motor. See the basic principle with the singlephase ac as the simplest example. We will have 23 different demo vfds for students to work with in class. Motor control using variablefrequency drives labvolt.
Each variable frequency drive basics course training student will receive a detailed vfd specification and check list to use to ensure that all their vfd issues are addressed. Programming the vfd variable frequency drive important parameters that need to be programmed in order to use the vfd, variable frequency drive. Eatons variable frequency drives, also known as adjustable frequency drives, are designed and manufactured for applications requiring ultracompact solutions, clean power or future configurability in mind. The variablefrequency drive training system and its.
Of course, the motor can also be reversed using the front panel. Maximize energy savings by modulating the speed of fans and pumps. Students will complete this vfd training course with the ability to lower the cost of vfd operation, thus alleviating the need for hiring costly outside service contractors, all while establishing. Typically, you can save 2050% of energy when using fans and pumps with variable speed drive. They all operate on the same basic variable frequency drive theory. A variable speed drive vsd consists of a motor and some form of controller. Discover the best practices for frequency drives in hvac, pumping, and facility applications. Frequency inverters for 3phase asynchronous motors from 0. Variable speed drives for high performance machines. Electronic speed controllers for ac motors usually convert the ac supply to dc using a rectifier, and then convert it back to a variable frequency, variable voltage ac supply using an inverter. The new ga500 microdrive is designed to help you make complicated tasks simple.
Variable source inverter operation is relatively simple. So if you are dealing with a vfd pump, vfd hvac, motor inverter or other ac drive control, this course is a great introduction to the essentials. The following safety and common symbols may be used in this manual and on the equipment. This vfd or variable frequency motor drives training class and system is designed for working on real powered electrical circuits that include a variable frequency drive to control the three phase motor included. The advantage of using variable frequency drives vfds. All classroom materials, including a workbook and reference guide in pdf and paper format. A variablefrequency drive vfd is a device that controls the voltage and. Low voltage drives with high power ratings, 90 to 2000 kw.
Aka vfd, vsd, asd, drive, inverter, converter, etc. Variable frequency drives vfds euromatech training and. Vfds function to adjust motor speed to better fulfill the requirements. As industry realized the cost savings from vfd freq drive implementation and. Drives give south african farmer 40% energy savings. Variable speed drive often uses less energy than an alternative fixed speed mode of operation.
Variable frequency drives online training course tpc. Thank you for attending the course and thank you to the. A vfd allows motorbased systems to adjust the speed at which the motor runs. The variable speed drives explained vfd controller operation are common place in industrial ac motor speed controls and rotating equipment. Vfds and motor control training the electricity forum. Find the foremost selection of variable frequency drives on. This training module is designed to familiarize students from beginner or expert with the essential vfd types, features, functions, vfd bypass and benefits of variable frequency drives. Some types of singlephase motors or synchronous motors can be. The traditional quick start guides will be able to get the motor shaft turning. Learnlabs allenbradley vfd training system is designed for working on real electrical circuits that include a variable frequency drive to control a three phase motor. In this presentation, we will be covering variable frequency drives vfds and their theory, application, and troubleshooting. Variable frequency drive, operation and application of variable. A variable frequency drive is like the throttle on a car it adjusts the speed of an hvac fan or pump motor, based on demand, to save energy and prolong motor and mechanical component life. Do not run the air cooled spindles below 7200 rpm pd011.
This vfd basics training software use the allen bradley vfd powerflex, the variable frequency drive basics taught can be applied to abb vfd, siemens vfd or any other brands vfd working principle. Students learn how to improve vfd control and efficiency, troubleshoot and fix vfds, reduce equipment downtime, and eliminate chronic vfd problems. Im using one of these to drive a 3 hp 3 phase air compressor i picked up for my home shop. They are used for running an ac motor at variable speeds or let them. Yaskawa is the worlds largest manufacturer of ac drives and motion control products, including adjustable frequency drives, servo amplifiers, servomotors and machine controllers. There are a lot of tradeoffs in the different designs and depending on the goals and preferences of the. Learnlabs vfd training system is designed for working on real powered electrical circuits that include a variable frequency drive to control the three phase motor.
Also known as adjustable frequency drives afd, variable speed drives vsd, ac drives, microdrives or inverter drives. It provides a comprehensive, highquality, and costeffective solution to rapidly build student knowledge in vfds and their motor applications. Manufacturers will apply variable frequency drives to rotating equipment to reduce amperage spikes upon start up of large electric motors. These products, hallmarked for quality, performance, and durability, can be customized to meet the most demanding applications. This euromatech training course highlights the relevance of variable frequency drives vfds, also known as adjustable speed drives in the electrical installation. In order to properly cover the subject, it will be broken into four distinct parts. Variable frequency drive basics, vfd training online. This manual is intended to help users of variable speed drives successfully install.
Service provider training focuses on maintenance, diagnosis and troubleshooting of eaton vfd. A quick overview a vfd controls the speed, torque and direction of an ac induction motor. It takes xed voltage and frequency ac input and converts it to a variable voltage and frequency ac output. A manual 25 hp exhaust fan is found to run 24 hours 7. An electronic converter which converts direct current dc to alternating current ac is known as an inverter. Vfds are used to adjust a motors speed to closely match output requirements in industrial, hvac. With this electric drive tutorial youll learn how does a variable speed drive work vfd drive working principle, and other industrial drive essentials. Students will input motor data into the variable frequency drive, set parameters for speed control and overcurrent protection, and check fault codes. Freq drive training variable speed drives explained. Fan and pump applications are the best opportunities for direct energy savings with afds.
Variable frequency ac motor drive output cables are subject to harsh operating settings characterized by high voltage spikes, high noise levels and adverse environmental conditions as the original developer of high quality vfd cable, belden knows how to deliver superior electrical performance and reliability, even in the most demanding industrial environments. Failure to follow directions will result in damage to the spindle and the vfd. The areas of greatest opportunity are fans and pumps with variable loads. In this variable frequency drive vfd training, participants learn proper design recommendations to ensure that your equipment is as energy efficient and safe as possible. Whether youre in facility maintenance, chilled water systems, waste water. Ac motor, main drive controller assembly, and drive operator interface 210211 ac motor.
The vfdtrainer freq drive training software is a tutorial of the ac frequency drive and related motor control troubleshooting. When receiving a new variable frequency drive there are some basic steps that must be taken after the main wiring installation. Basically, ac input voltage and frequency is converted to dc by rectifiers. Here are the most basic steps in the programming process of ac drives read all manuals included with the box and download any instruction manual andor operating manual. Energy savings using a vfd to control the speed of a constant torque load is a direct function of speed reduction. Our vfds handle both low voltage and medium voltage applications, with a. Please read and understand the manual before operating. A variablefrequency drive is a device used in a drive system consisting of the following three main subsystems. This variable frequency drive basics, is a vfd basics industrial drive training online certificate course. A variablefrequency drive vfd also termed adjustablefrequency drive, variable speed drive, ac drive, micro. Knowing basic variable frequency drive training ppt. Basic variable frequency drive maintenance tips as we have seen, increasing pressure to improve financial performance is driving a change in the way end users approach control of production, engineering, operations, and maintenance across the manufacturing enterprise.
Ppt variable frequency drives vfd basics powerpoint. Variable frequency drives vfd training tpc training. Variable frequency drives vfd, aka variable speed drive vsd have been available for use with a wide range of applications for over 20 years. Smartvfd variable frequency drives honeywell building. Variable frequency drives troubleshooting larry stanley, regional sales engineer, january 2014. These applications include single motor driven pumps, fans and compressors, as well as highly sophisticated multi drive machines. The vfds are now commonly applied to air handlers, pumps. This variable frequency drive basics training software is interactive and has real world simulations.
Variable frequency drive vfd usage has increased dramatically in hvac applications. A vfd converts the 5060hz fixedfrequency and fixed. Easily integrate the smartvfd into building automation systems. This training is held at the eaton variable frequency drive assembly plant in watertown, wisconsin. Variable frequency drives ressources naturelles canada. The basic configuration of a variable frequency drive is as follows. The ac electric motor used in a vfd system is usually a threephase induction motor. In the case of riecor farming in south africa an attempt to resolve one problem actually solved it extremely well and, in addition, gave numerous side benefits that decreases costs, work and headaches while making the farmers job easier. Save energy, improve control and reduce motor wear using ac drives, also known as variable speed drives vsd, inverters, ac inverter drives, ac drive inverters, ac vfds, hvac drives, or variable frequency drives vfd. It is designed for portability and powered using a standard. Altivar 340 machine drive, atv340, a variable speed drive designed for original equipment manufacturers oems that engineer high performance applications for 3 phase motors with or without sensor from 0. That speed is based on how much power the mechanical systems need to meet the demand of the building. Specifications references used in specification section 1 applicability 1.
299 1678 794 123 1601 1376 1210 802 516 665 1373 933 1616 476 1462 374 1096 579 18 731 603 1273 1572 579 190 252 474 240 1593 1041 288 1548 991 85 996 1086 1275 726 619 428 837 1268 343 317 768 916