The semiconductor used in ac motor drive easily damage by highvoltage. Pdf troubleshooting guide we occasionally get reports from customers that they are unable to view our manuals, technical specs, or other documentation which we provide in adobes. Thank you for choosing deltas highperformance vfdv series. Faq vfds how can i troubleshoot a variable frequency.
In this instance, i wascalled to helptroubleshoot a closed loop sensorless vectorvariable frequency drive vfdon a production line that was so large, itseemed to goso far down the plant, it never ended afterovercoming theintimidationassociated withthe sheersize. Yaskawa pays off the promise of being in control with products that make businesses move. There are a lot of tradeoffs in the different designs and depending on the goals and preferences of the. Refer to the manual for the unit or contact the manufacture of the vfd if you. For ac drives please contact your local sales office for fix and troubleshooting by certified service partners. This manual will help in the inst allation, parameter setting, troublesh ooting, and daily maintenance of the ac motor drive. If restart after fault reset is selected, the vfd can start automatically after fault reset. The vfdl series is manufactured using highquality components, material and incorporating the latest microp rocessor technology available. Troubleshooting a variable speed drive variable speed drive is a sensitive electronic device. 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. When vfd goes down, remember to check the basics the controller.
Advanced drives for fluid and gas handling applications with embedded energy monitoring, information management and process optimization. Advanced drives focus on exceptional motor control with embedded functionality to support applications, such as artificial lift, and hoisting. Rectifierconverts the fixed 60 hz ac voltage input to dc. Ach55001 users manual for disconnecting the emc filter, see disconnecting the internal emc filter on page 45. Ppt variable frequency drives vfd basics powerpoint. Set correct motor data from the motor nameplate and overload protection parameters for proper. Vfd sections regulatorcontrols the rectifier and inverter to produce the desired ac frequency and voltage. The trick to troubleshooting variable frequency drives vfds is to fix the problem.
All books are in clear copy here, and all files are secure so dont worry about it. When receiving a new variable frequency drive there are some basic steps that must be taken after the main wiring installation. Before you rip that variable frequency drive vfd off the wall and send it in for a rebuild, stop. Vfde series is used only to control variable speed of 3phase induction motors, not for 1phase motors or other purpose. Altivar process atv600 variable speed drives english version 201911 pdf version 9. If the fuses are blown, do not just replace them with. Huge energy savings potential operating centrifugal fans, pumps and compressors vary frequency of electrical supply to an induction motor to vary the motor speed. Uninterruptible power supply ups industrial automation and control. Find links below to useful resources for drives, cooling, heating, high pressure pumps and industrial automation product portfolios.
The traditional quick start guides will be able to get the motor shaft turning. Instruction manual flexpak 3000 digital dc drive software reference manual version 4. Notes draw attention to a particular condition or fact, or give information on a subject. Demands for efficient production and better maintainability are on the rise, spurred by global competition. This manual is to be used for the installation, parameter setting, troubleshooting, and daily maintenance of the ac motor drive. Variable frequency drives vfds are a staple component of many industrial.
Test the vfd without a motor to possibly isolate a problem vhz. Free vfd training houston free plc vfd troubleshooting. Installation manual this manual describes how to install and connect the drive. Vfd drives industrial power inverter ac drives fuji.
Make sure if you have a bypass function that both the vfd and bypass mode operate the motor in the same direction. Heres how to make the necessary inspections with a multimeter. Engineering technicianshave many nightmare stories when it comes to onsitetroubleshooting. This manual will be helpful in the installation, parameter setting, troubleshooting, and daily maintenance of the ac motor drives. The first thing to do is check the fuses and event codes on your unit. The drive will respond to fluctuations in system conditions and eventually drop off on a fault indication, depending on what part of the system is malfunctioning. View and download delta electronics ac motor drive vfdel user manual online. That is, owing to the variable frequency drive stage topology, the vector sum of the instantaneous voltages of the three phases at the variable frequency drive output does not cancel out, but results in a high frequency electric potential relative to a.
Manual necessary to perform any significant troubleshooting. Mitsubishi electric automation of vernon hills, il offers a comprehensive line of factory automation solutions. Vfdel multiple functions micro type ac motor drive. In this video, our vp of engineering craig hartman.
See the basic principle with the singlephase ac as the simplest example. The three phase voltage supplied by the pwm variable frequency drive, differently from a purely sinusoidal voltage, is not balanced. Ac motor drive vfdel controller pdf manual download. Without a vfd, an hvac fan or pump motor is either 100 on or 100 off. Solutions include robots, automation platforms, sequence controllers, humanmachine interfaces, variable frequency drives, servo amplifiers and motors, motion controllers, computer numerical control, pcbased cnc, linear servos, and industrial sewing. Acs550 01u1 users manual 5 safety instructions safety instructions use of warnings and notes there are two types of safety instructions throughout this manual. Do not modify vfd internal components and circuits. This manual is intended to help users of variable speed drives successfully install and utilise siemens standard drives.
The basic configuration of a variable frequency drive is as follows. Dave mcdonald test instruments and electrical safety digital multimeters and other voltage testers instruments for measuring electric current determining if electrical insulating gloves are required determining if arcrated apparel and other ppe are required general plc troubleshooting. Danfoss vlt6000 drive manual danfoss vlt6000 series drive manual. If the vfd system has bypass, there will be an overload device for the bypass circuit, but if tripped, will also prevent the vfd connect to the motor. Troubleshooting a variable frequency drive newark electronics. 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.
Vfd002el11a, vfd002el21a, vfd002el23a, vfd004el11a, vfd004el21a, vfd004el23a. Today we will discuss some of the fundamentals of a variable. This sample is from a vfd troubleshooting instructional video which. Otherwise, there is danger of fire due to wire breakage andor injury to. The following altivar 312 technical documents are available on the schneider electric website. How to troubleshoot and diagnose a nonworking vfd youtube. Inverterswitches the rectified dc voltage to ac, creating variable ac frequency and controlling current flow, if desired. Vfdel series is used only to control variable speed of 3phase induction motors, not for 1phase motors or other purpose. Variable frequency drive service, as the local factory authorized field service depot for the largest hvac vfd manufacturers asea brown boveri, danfoss graham, square d, toshiba, yaskawa and others danfoss vlt6000 drive manual hvac concepts, download file name. Most frequently, customers describe a blank screen or white screen or nothing happening when they attempt to open one of our pdfs.
Automationdirect technical support pdf troubleshooting guide. Frequency drives vfds use the properties of electricity to run motors and pumps at slower speed. By daniel schubert yaskawa product training engineer. A converter is a device to create the dc from the ac power supply. In this presentation, we will be covering variable frequency drives vfds and their theory, application, and troubleshooting. The vfdel series is manufactured with highquality components and materials and incorporate the latest microprocessor technology available. The grounding method must comply with the laws of the country where the ac motor drive is to be installed. Plc and vfd troubleshooting course syllabus instructor. Flexpak 3000 digital dc drive software reference manual. After receiving the ac motor drive, please check for the following. Each part of a variable frequency drive has the following function. The v is a worldclass compact current vector drive that defines a new world standard. Powerflex 700 ac drives user manual series a, frames 06.
Vfdv series are manufactured by adopting highquality components, material and incorporating the latest microprocessor technology available. Click on document number to the far right to view a pdf file or right click save target as to download to your computer. Check to make sure that the package includes an ac motor drive, the user manualquick start and cd. Frequency drives and the use of basic troubleshooting procedures. When a fuse blows, is this the problem or a symptom of the problem. Frequency drive vfd system for ac motors and general troubleshooting. Programming manual this manual describes the functions and parameters of the drives terminals and how to use them. Altivar 71 documents and downloads schneider electric. Troubleshoot and fix your danfoss products to ensure smooth operations and high reliability. Yaskawa ac drivev compact vector control drive technical manual manual no. Thank you for choosing deltas multifunction vfdel series. When diagnosing a vfd problem one of the first things i try to find out is, is the. Altivar process 930 variable frequency drives vfd atv930 high performance drives for demanding applications from 1hp to 500hp. Vfdel series shall not be used for life support equipment or any life safety situation.
Download it once and read it on your kindle device, pc, phones or tablets. The optimum balance of energy input, product output. Applies to the acs58001 drives, including the new 2017 r1r3 frames see all applicable types in section. Use features like bookmarks, note taking and highlighting while reading variable frequency drives. In order to properly cover the subject, it will be broken into four distinct parts. Variable frequency drives vfds popular speed control devices used in industrial, commercial and residential applications. User manual powerflex 700 ac drives series a, frames 06 standard control firmware 3.