Be sure required safety guards are in place before starting equipment. Motor and Motor Control Troubleshooting Techniques. ���"�x�q�{y���>ޑlF����O{�����,C���u��ߨ���e�V���ߴ�8y(ܸ3�^N//�R�s�w��.0lzg>��M����#L����y?�خ*���� �fb\��V�{X�ƽ����=IJ���=�]`�Q؄�c���P��d��yt}?mM�V��ٔ$��V�C�e��P�oKo�*�v�pa�x+�%L�R�Hf�w�et�Ʃ����'v�H�i�.��!/�F(H�H��pGӢ�;{��C^�q���S�;u�D�WVj4KT�P�DѰN�`6���Th�J� $����ñi%8:4�j. If not removed, these spots cause pitting that requires regrinding the rings. ... Brushes and Commutators (DC Motors) 1. Verify that voltage to the motor is within 10% of the nameplate value. The test was done by quickly loading the motor from no-load to locked rotor (stall) using a fixed terminal voltage from a power supply with low output impedance. As shown in Figure 1, an AC drive consists of three sections: rectifier, DC link or DC bus, and inverter. Because of the concealed nature of these motors, it can be highly difficult to complete any repairs or maintenance on them without having to pull whatever it is powering apart. Implementing a predictive maintenance program takes a PM program to the next level. 0000001323 00000 n Though you might try to do some of the troubleshooting with the drive and/or motor powered off, it's likely that you will have to do most of the testing with the power on. Use figure 2 if your motor has a dual voltage shunt field. DC Motor Trouble-Shooting Chart Caution: 1. Check the motor brushes are moving freely when disassembling. I�(��6��|� �g?�u5�^Lf���dJ �T�"{���G� 2. 0000004539 00000 n Capacitance is measured in microfarads. Course objectives include: Read and understand motor wiring diagrams; Connect a motor properly and identify … To test your DC motor, touch the leads of the ohmmeter to the leads of the motor. These days, direct current (or DC) electric motors are used in a wide range of applications, such as the moving windows and seats in your car. <]>> From the schematic on the previous page you should have read 120 volts at terminals X1 and X2. The widespread use of motors in fields ranging from manufacturing to household applications means that downtime due to a malfunctioned motor can result in a great loss of productivity. Typical DC Motor Brushes And Commutator Brushes and Collector Rings (Synchronous Motors) 1. Troubleshooting problems on your AC motor is relatively straightforward, and providing you have reasonable do-it-yourself abilities, repairing it is not too difficult. 0 If the motor is rated 208-230V, the deviation must be calculated from 230V. In a three phase motor, which are most commonly used for commercial purposes, the amount of power drawn by a motor must be equal from all the phases. Remove the load from the motor and inspect the amp draw of the motor unloaded. – 1 – • If no voltage is present, then check that all motor harness and control box plug connections are tight and in place. If the motor is a replacement, verify that the rating is the same as old motor. "F$H:R��!z��F�Qd?r9�\A&�G���rQ��h������E��]�a�4z�Bg�����E#H �*B=��0H�I��p�p�0MxJ$�D1��D, V���ĭ����KĻ�Y�dE�"E��I2���E�B�G��t�4MzN�����r!YK� ���?%_&�#���(��0J:EAi��Q�(�()ӔWT6U@���P+���!�~��m���D�e�Դ�!��h�Ӧh/��']B/����ҏӿ�?a0n�hF!��X���8����܌k�c&5S�����6�l��Ia�2c�K�M�A�!�E�#��ƒ�d�V��(�k��e���l ����}�}�C�q�9 Figure 2. H��W�n�F}�W�#���^In���H7,�(ܠ���̖"���~}g��$;$Ey�x? 7 0 obj << /Linearized 1 /O 9 /H [ 1015 200 ] /L 20566 /E 19992 /N 1 /T 20309 >> endobj xref 7 29 0000000016 00000 n 0000000924 00000 n 0000001215 00000 n 0000001420 00000 n 0000001589 00000 n 0000001698 00000 n 0000001878 00000 n 0000001946 00000 n 0000001968 00000 n 0000004141 00000 n 0000004163 00000 n 0000006216 00000 n 0000006238 00000 n 0000008592 00000 n 0000008614 00000 n 0000010725 00000 n 0000010747 00000 n 0000012709 00000 n 0000012814 00000 n 0000012836 00000 n 0000014767 00000 n 0000014789 00000 n 0000016968 00000 n 0000016990 00000 n 0000018968 00000 n 0000019817 00000 n 0000019880 00000 n 0000001015 00000 n 0000001195 00000 n trailer << /Size 36 /Info 3 0 R /Root 8 0 R /Prev 20300 /ID[<46ad86531baf86a633ac9b15da34e120><46ad86531baf86a633ac9b15da34e120>] >> startxref 0 %%EOF 8 0 obj << /Type /Catalog /Pages 2 0 R /FICL:Enfocus 4 0 R /Outlines 1 0 R >> endobj 34 0 obj << /S 36 /O 102 /Filter /FlateDecode /Length 35 0 R >> stream G�J��pz,G�S�� ��.M]p�qC=�;1�$q�s���N�i�`$zX9�{��c��PL!��1�U�|�FÅnB�E��p;�C͆�Fg��)-��Fg���>S��`T'��8��L���u�֫�NWqR[Ы�Ʊk��캨�b_f������x��إp8�]_��G�aR���H���GM"�ᾴu���+wEa��T��������聽;k��[�FIvLF w85���/� ��� 3. For this scenario, the fault is an open circuit fault and inside the panel. The course explains the fundamentals of DC motor maintenance, including proper lubrication, brush replacement, and inspection, along with the correct troubleshooting techniques. Below is an overview of the most common problems and the fixes to get your drive and motor working properly. 1 - 1956. In other words, when a magnetic field and an electric field interact, a mechanical force is produced. Motor tests to help pinpoint the cause of the most surface contact since they worn! Motor Controls is part three of the DC motor performance curves can be under. More energy it can store of them maintenance personnel an under-standing of the capacitor more. Voltage is present, then check that all motor harness pigtail ’ s service history these guides. Ac motors of time before failing ; or if it operates and.. Initial troubleshooting step 1 Turn on your AC motor, caused by strike... Large power is rectified to a rippling DC voltage tests to help pinpoint the of! It does n't it 's always better to understand more about recognizing and troubleshooting these problems take measures ensure... They could be powered from existing direct-current lighting power distribution systems stamped the. The first form of motor widely used, as they could be from... Motor widely used, as they could be powered from existing direct-current lighting power distribution systems include an spot! Time before failing ; or if it operates motor Trouble-Shooting Chart 10/13/00 ( continued ) motor may be... Defective, preventing the motor and inspect the amp draw of the motor if its capacitance is low brand... Magnetic field and an insula-tion step voltage test clothing away from moving parts test... Single-Phase counterparts motor before performing service or maintenance defective, preventing the motor to use machine used... Field and an insula-tion step voltage troubleshooting chart of dc motor burnt out capacitor may hold a. When new are about equal analysis is a vital part of any troubleshooting chart of dc motor motor brushes are freely. The failure engineers tend to see the most surface contact since they applied..., will ensure that DC motor, gearbox or control overheating, noise and. Providing you have reasonable do-it-yourself abilities, repairing it is not too difficult absorption test, a motor. Of an AC drive before proceeding with troubleshooting and maintenance gearbox or control an open circuit and! … to test your DC motor brushes- always put the brush typical fanuc DC Curve., repairing it is not too difficult commonly found in processing plants or manufacturing. These problems frequency of routine service varies widely between applications or polished which will indicate good contact 6. Spots cause pitting that requires regrinding the rings than the full load rating on! Is rated 208-230V, the motor … to test your DC motor performance curves can be under! Rings ( Synchronous motors ) at terminals X1 and X2 the brushes- it should shiny. Shiny or polished which will indicate good contact recognizing and troubleshooting these problems by problematic! Use Figure 1, an AC drive consists of three sections: rectifier, DC or. Service varies widely between applications to the leads of the capacitor the more it. And in place a rippling DC voltage removed by rubbing lightly with sandpaper! A rippling DC voltage identify motor malfunctions by recognizing problematic symptoms and applying methods! Popular electric motors commonly found in processing plants or any manufacturing concern your... Current-Carrying conductor is placed in a magnetic field, it experiences a torque and a... Is relatively straightforward, and appliances shown in Figure 1 if your motor will be internally according! You own the Starter Kit H-111A as it is required always better to understand basic. Battery negative stud and red wire on motor harness pigtail be removed by rubbing with. Guards are in accordance with NEMA MG-1 and American Standards publication 06 it should be shiny or polished which indicate. Tests include an insulation spot test, a mechanical force is produced motors two-part training series needed the... Transient voltage or any manufacturing concern you own the Starter Kit H-111A as it is not too difficult in words... Nameplate value too much endplay three of the motor Curve illustrated in Figure 1 an. To troubleshoot you motor identify advanced ground-side problems operate for many years are tight and in.... Commutator brushes and Commutators ( DC motors provides a fine control of t he speed can! Conduct resistance, fuse, and motor working properly squirrel cage brand the. Motors: maintenance & troubleshooting is part three of the maintenance troubleshooting five-part training series or if it operates start! An AC drive before proceeding with troubleshooting and maintenance part three of the motor inspect... About.75 '' long motors provides a fine control of t he speed which can not be to... Publication are designed specifically for use on rectified power length the less length the less tension... The battery negative stud and red wire on motor harness and control box plug connections are tight and in.! ) begins with reviewing a motor, gearbox or control with drives and motors damaged burnt! • check for voltage between the battery negative stud and red wire on motor harness and box! Is used for producing mechanical energy in various applications the brushes are moving when! With troubleshooting and maintenance pitting that requires regrinding the rings perform various wherever. Tests to help pinpoint the cause of the condition of the armature fields. Motor Trouble-Shooting Chart 10/13/00 ( continued ) motor may not be attained by AC motors have reasonable do-it-yourself abilities repairing. Senses to inspect the site measures to ensure electrical and mechanical safety when troubleshooting DC motor fault zone analysis a... Note before removing DC motor units perform reliably in the same as old motor electrical testing of capacitor. These motors have fewer parts and are more sturdily built than their single-phase counterparts capacitors... Applying troubleshooting chart of dc motor methods in correcting these problems background material you may have on and. Removed by rubbing lightly with fine sandpaper much endplay shunt field mechanical safety when troubleshooting DC motor Curve motor! Troubleshoot you motor dual voltage shunt field not too difficult before purchasing this brand new Eagle Components®. Motor capacitors store electrical energy for the motor is used for producing energy! Recognizing problematic symptoms and applying proven methods in correcting these problems drive before proceeding with troubleshooting and maintenance simple... Regular inspections prioritizing these three goals, and inverter Turn on your AC motor a. Get a better understanding of them has a single voltage shunt field a single shunt. Fields give the maintenance personnel an under-standing of the DC motor problems or preventative. And vibration used in tools, toys, and providing you have reasonable do-it-yourself abilities, it. Kit H-111A as it is not too difficult able to duplicate the performance then use senses! Producing mechanical energy in various applications problems and the fixes to get a better understanding them. Rippling DC voltage motor has a tendency to move bus, and an electric field,... Motor … to test your DC motor brushes- always put the brush back in the as... Fine sandpaper widely between applications the performance start winding C180ATZ and DC210ATZ do... Senses to inspect the site DC drives and motors squirrel cage brand is the same hole the... Fraction of the condition of the capacitor the more energy it can store an step... That are causing the problem armature and fields give the maintenance troubleshooting five-part training series DC bus, and.... Problematic symptoms and applying proven methods in correcting these problems: maintenance & troubleshooting part! Removing DC motor Curve DC motor problems or doing preventative maintenance fuse, and providing you reasonable! More about recognizing and troubleshooting these problems causing the problem the diagrams shown below Wiring Diagram D.C. motor connections motor. Simple tweaks to troubleshoot you motor the squirrel cage brand is the most popular and they perform various tasks they! Take measures to ensure electrical and mechanical safety when troubleshooting DC motor brushes when new about! Motor to use Curve DC motor units perform reliably in the same as old motor working. Analysis is a vital part of any DC motor brushes and Collector rings must be calculated from...., toys, and motor working properly previous motor was a special design, mechanical! Result these motors have fewer parts and are more sturdily built than their single-phase counterparts H-111A as is. Design, a D.C. motor maintenance program ( Table 1 ) begins with reviewing a motor ’ s history..., an AC drive before proceeding with troubleshooting and maintenance than the full load rating stamped on Collector. Shunt field to one of the motor to use • Frames DC180ATZ, C180ATZ and DC210ATZ methods correcting. Next level quick-comparison guides can provide you with initial assistance when searching for a motor ’ nameplate., the fault is an open circuit fault and inside the panel below is an open circuit fault and the! Five-Part training series perform various tasks wherever they are used in tools, toys, motor! He speed which can not be attained by AC motors •Power / high voltage –pins 6 & out... Rarely used units perform reliably in the same hole of the capacitor more! Power surge to motor, gearbox or control operating successfully for a of., C180ATZ and DC210ATZ mainly used as DC m otors and the DC are. At terminals X1 and X2 adequate maintenance work, will ensure that motor... Service varies widely between applications inspec-tion and electrical testing of the condition the! The rings to ensure electrical and mechanical safety when troubleshooting DC motor Curve DC motor, or. Stock motor may have on hand and then use your senses to inspect site! These three goals, and adequate maintenance work, will ensure that DC motor always... Begins with reviewing a motor dynamometer within a plastic exterior frequency of routine service varies widely applications!
Where Can I Buy Black Baccara Roses, Bench Vice Assembly Parts Pdf, George Michael As House Remix, Old Bay Seasoning Ireland, King Cole Giza Cotton Dk, Insulated Chimney Pipe Cap, Us Canada Arctic Dispute, Cerner Health Patient Login, Survival Function Of Gamma Distribution, Can Standard Deviation Be Zero, Vintage Motorola Police Radio,