Besides that, a drive may also experience overcurrent trips or possibly a motor related fault such as an overload. The motor and drive troubleshooting online course is designed to help maintenance professionals better understand the electrical, electronic and mechanical aspects of motor drive system health. Jacob anderson, the nations leading shopsmith mark v headstock repair expert, shows how to check a shopsmith mark v motors with a multimeter and a capacitor. Find the output terminals on the module itself from the servo drive manual for the specific model and type of drive you are using. Using the diagram above, place the red multimeter lead on pin 1 of the hand control cord. View and download delta electronics ac motor drive vfde user manual online. So, what we can do is take it one step at a time and. Just replacing the motor will cause the motor to burn up again. Look for peripheral equipment such as switches or input fuses circuit breakers that may be in the input power side of the drive or output side of the motor.
Electric motor drive installation and troubleshooting. A drive can experience overvoltage or undervoltage trips due to line surges or sags. Refer to the wiring diagram to verify the motor is wired correctly. See section document library on the internet on the inside of the back cover. It should be less than the full load rating stamped on the nameplate. It is comparatively easy to obtain the required speed through the use of motors directly connected to the driven machine, through speed reducers, or the now more economical geared motors, or even through vbelt or chain or sprocket drive. Delta electronics ac motor drive vfd007s23a user manual pdf.
Go tovector drive troubleshooting guideto troubleshoot the vector drive. Verify that the service supply is grounded as well. Compressor drives troubleshooting check list danfoss. Servodrive troubleshooting guide servodrive troubleshooting the documents below contain troubleshooting guides should any problems occur when starting up or using servodrive. Delta electronics ac motor drive vfde user manual pdf download. For maximum motor life, the cause of overheating should be identified and eliminated. This industryleading resource begins with electric motor principles, power requirements, and control methods and focuses on the safe operation. Vfde high performanceflexible optionsmicro type ac motor drives. With drives and motors, there are a few common problems that application engineers tend to see the most. Troubleshooting a variable frequency drive newark electronics. A grounded motor will almost instantly cause permanent drive damage, giving the false impression that the drive is the source of the problem. List the main sources of vibration in a motor and drive train system. Servo motor and drive troubleshooting guide a servo motor is a torquebased engine comprised of a rotary actuator or linear actuator. An460 application note december 2003 introduction over the years while working with stepper motor users, many of the same questions keep occurring from novice as well as experienced users of stepper motors.
Jan 26, 2016 pdf download electric motor drive installation and troubleshooting download full ebook. Driveap users manual 1 1 chapter 1 introduction driveap is a windows based tool program for application programming. Remove the load from the motor and inspect the amp draw of the motor unloaded. Motor horsepower is a relation of motor output speed and torque expressed in lbft. The motor or device receiving the output values is designed to provide feedback data to the servo drive module so the servo drive can control the load within a specific set of parameters. Ebook ebook free electric motor drive installation and. In the first part of our presentation, we are going to.
If the motor does burn up it indicates a driver problem. Electric motor drive installation and troubleshooting includes drive theory and applications, as well as installtion, testing, and troubleshooting procedures. Tips for troubleshooting electric motors understanding the nuances of various motor types is essential when servicing or installing such units b y d e n n i s b u s h a fter more than 100 years of use, with an ever increasing installed base, there are probably few aspects of an electric motors usage and failure modes. Improving motor and drive system performance department of. Therefore, motor troubleshooting involves the entire system, not just the. You can find manuals and other product documents in pdf format on the internet. Inspect the motor for any obvious defects that would prevent safe testing such as.
If the motor has been operated successfully, problems such as incorrect hookup or internal misconnection can be ruled out immediately. Misalignment of pump, casting, discharge head, column, or bowls check for overall pump concentricity, remove and straighten bent shaft, consider replacing bent shaft 5. Trigger why drive tripped possible causes solution pid troubleshooting the drive not the motor is not properly grounded to the service supply. Gather up any background material you may have on hand and then use your senses to inspect the site. This is not a common problem with step motors unless there is a bad. Check the source of power, overload, fuses, controls, etc. Topics covered include drive programming and extensive information on the selection of motor drives for specific applications. Kitt butler, director, motors and drives, advanced energy. Dc motor troubleshooting based on the easa technote troubleshooting dc motors always. How to troubleshoot motors and drives, starting at the inputs. Record relevant motor nameplate data hp, rpm, rated voltages and currents for armature and field 2. Ebook ebook free electric motor drive installation. Disconnect terminals 2 and 3 and check for a short to the spindle motor circuit by measuring the resistance of terminal 2 to 9, 10, and 11. Weindorf electric motor drive installation and troubleshooting is designed for technicians in the field responsible for installing, programming, troubleshooting, and retrofitting electric motor drives this industryleading resource begins with electric motor principles, power.
Note that this article is about troubleshooting threephase motors and drives. Drive manuals and guides code english acs355 users manual 3aua0000066143. Check output currents in each leg to verify the motor. Motor and drive troubleshooting online course fluke. The full load torque of a motor is the torque necessary to produce its rated horsepower at fullload speed. Verify that there are no lights lit on the lower circuit board this indicates builtup energy has discharged and it is safe to check it. The modern electric motor installation the individual motor drive has practically replaced all other types. Electric motor drive installation and troubleshooting includes drive theory and applications, as well as installation, testing, and troubleshooting procedures. In the present day, induction motors consume between 90 to 95 percent of the motor energy used in industry. Motor reliability for inverter driven motors motor winding problems the motor winding insulation was changed to withstand the transient voltages and to prevent the corona discharges.
Variable speed drives are electronic controller used to control the rotational speed of an electric motor. Motor and motor control troubleshooting techniques. A pwm waveform creates insulation problems for standard electric motors because the leading edge of each pwm. Maintenance and troubleshooting of electric motors drives. Find the symptoms your lathe exhibits, and follow the steps to diagnose the problem. No matter how urgent the problem and motor failure can cause some very urgent problems always develop a plan of attack before you start repair work.
This article describes ac electrical motor troubleshooting. Check input current in each leg, as this verifies the rectifier. Troubleshooting the mini lathe variable speed drive there are several common types of failure that occur on the mini lathes variable speed drive. Pdf download electric motor drive installation and. Sep 01, 2007 if a step motor stalls out, it is unlikely that it will burn up as with most ac and dc motors. Tips for troubleshooting electric motors understanding the nuances of various motor types is essential when servicing or installing such units b y d e n n i s b u s h a fter more than 100 years of use, with an ever increasing installed base, there are probably few aspects of an electric motor s usage and failure modes. This new book has five chapters that include the fundamental principles, basic procedures, common applications, and inspection methodologies of handheld. Conventions the conventions starting below are used throughout this manual.
Find the symptoms your lathe exhibits, and follow the. This course will help you better evaluate and troubleshoot three categories of common motor drive issues. This new book has five chapters that include the fundamental principles, basic procedures, common applications, and. It may be too small or have the wrong starting torque characteristics for the load. Kinetix 350 singleaxis ethernetip servo drives user manual. Driveap is designed to run under the microsoft windows 7, windows vista, windows xp, windows 2000 and windows nt 4.
If the rated capacity of the motor selected does not match that of the servo drive, especially when the rated power of the servo drive is greater than that of the motor, adjust the motor protection parameters on the operation panel of the servo drive or install a thermal relay for the motor for protection. For further questions, please get in touch with your blum contact. The linear servo motor, directdrive motor and builtin ipm spindle motor uses permanent magnets in the rotor, so observe the following precautions. Topics covered include drive programming and extensive information on the selection of motor drives for. Follow the next steps in the drives instruction manual to isolate the fault 6. Troubleshooting start up problem or has vfd been running for some period. Roll motor leads be particularly concerned about reversing the motor. Clean up dirt, dust and corrosion build up on the heatsink of the drive. Vfd002e11a, vfd002e21a, vfd002e23a, vfd004e11a, vfd004e21a, vfd004e23a. If a step motor stalls out, it is unlikely that it will burn up as with most ac and dc motors. Basic testing to advanced diagnostics is a new textbook that provides an overview of the latest information on the safe, efficient, and practical use of portable oscilloscopes scope meters. The term powercycle the drive is used in the troubleshooting sections. Disconnect the hand control lead from the motor connector. This application note is intended as a collection of answers to commonly asked questions about stepper motors and driver design.
Motor drive coupling out of balance field balance coupling 4. Problems with the input to the drive can cause a number of failures. For manuals not available in the document library, contact your local abb representative. Problems and premature failures often indicate input power system troubles, poor or deteriorating mechanical installations, or malfunctions in the driven machinery. Does the issue follow the motor lead or stay in the same phase. This type of motor allows for precise controls adjusting for angular and linear position, torque, velocity and acceleration. Tips for troubleshooting motor drives design world. Installation process overview installation recommendations. Many of these can be replaced with a standard induction motor and a general purpose pwm vfd to provide a more reliable. Maintenance and troubleshooting of electric motors reliance electric posted 11005. A damaged drive with a blown scr upper left corner caused by an excess of current. Electric motor drive installation and troubleshooting, 3rd. Electric motor drive installation and troubleshooting is designed for technicians in the field responsible for installing, programming, troubleshooting, and retrofitting electric motor drives. Record relevant motor nameplate data hp, rpm, rated voltages and currents for armature and.
Spindle motor troubleshooting guide page 3 of 7 pages. Troubleshooting drop motor leads and verify output voltage phasetophase. Direct drive motor specifications and instruction manual. Motor bearings not properly seated inspect and replace as required 3. Electric motor drive installation and troubleshooting atp. Electrical troubleshooting shopsmith mark v motors youtube. Lastly, check the drive output for voltage and current. Loose connections in the wiring of the drive to the incoming power and to the motor are a major cause of drive failure. Motor ramping up in speed or only when approaching full speed motor cables together or smoking insulation. As indicated in the troubleshooting sections, overheating results from a variety of different motor problems. Troubleshooting the mini lathe variable speed drive.
It also provides methods for isolating and resolving hardware and software problems. The drive itself does not have a good ground connection. Possible causes could include a short on the motor output, grounding on the motor terminals, or an overloaded motor, among other causes. This revised textworkbook presents the latest information on electric motors and drives in industry. Certain drives are more susceptible to problems caused by dirty line voltage as they may use certain portions of the 60hz line as a clock. If the motor problems cant be resolved with this list, please contact your supplier for assistance.
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