Information Sheet #1 - Drive Repair - A Summary Introduction.
One of many areas of LEI expertise is the maintenance of electric motor drive systems. While the term drive indicates mechanical, which is the case with electric motors connected to a gear arrangement, a high percentage of electric motors found in process and manufacturing facilities use a Variable Frequency Drive (VFD) system to control the electric motor. Whether the motor is a single unit or part of a coordinated chain of electric motors in a variable frequency production process, the critical component is the drive assembly.
2.0 Note the Important Aspects of the Drive Unit:
While drive units may undertake the same function and comprise similar components, they are all different from manufacturer to manufacturer. Before maintenance or repair, the manufacturer, serial number, reason for service, urgency of repair, and a visual inspection should be carried out.
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Information Sheet #13 – NEMA Motor Repair, Best Practice & Definitions
Information Sheet #12 - Preventive Maintenance of Electric Motors and Benefits
Information Sheet #11 - Brownouts & The Adverse Effect On Electric Induction Motors.
This information sheet discusses the adverse effect brownouts have on electric motors, particularly induction motors and how to manage them.