AC Tech mc series manual & Lenze smvector drive

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If you need any AC Tech variable frequency drive literature, everything you’re looking for can be found right here on our website. Simply click the Manuals tab in the top right corner of this page. The following AC Tech literature can be found here: on our website.

SMV Series
Sub Micro Series
MC Series
MCH Series

All of the literature that AC Tech has available on their website, is available on our website. Precision Electric also has digital documentation available for Lenze products, Baldor products, and other manufacturers’ literature whom we work with. If you need specific documentation and you cannot find it elsewhere, send me an email request.

Precision Electric service fliers, brochures, line cards and other related documentation is available here on our website via PDF. If you click the Capabilities tab in the top right corner of this page you will be able to download these files. If you do not find the information you need on our website, email me, and I’ll do my best to help.

Ryan Chamberlin
Inside Sales, Customer Support
[email protected]

Variable frequency drive torque control inverter vfd

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We’ve Been Servicing the Industrial World Since 1983.
Minimize Your Downtime. Maximize Your Productivity

Call Toll Free: 1.877.625.2402

Customers of Precision Electric have been using variable frequency drives to better control torque on electric motor applications for a number of years. This posting is to help you decide what type of variable frequency drive will work best for your application.

For a new VFD application:

  • Research the motor and VFD specifications.
  • Research your application requirements.
  • Learn more about the VFD products that are available to you.
  • Understand the features of those VFD products to determine what is an appropriate solution for your application.

There are a several different types of Variable Frequency Drives. The following is a short summary of the three different types of drives that are available, and when these types of drives should be considered in an application:

V/Hz (Volts per Hertz) Variable Frequency Drives (VFDs)

The most commonly used and most basic VFD available; this product is for a basic application in pumps, fans, conveyors, blowers and others.  These applications do not require high starting torque, full motor torque at low rpm, and/or speed feedback.  Most V/Hz VFDs have adequate programming features for many applications.  Be certain adequate I/O and programming features are available to meet your application requirements.  This product is an inexpensive alternative to a phase converter since they will accept single phase input while providing three phase output.

Sensorless (Open Loop) Vector Variable Frequency Drives (VFDs)

The next VFD type that is commonly used in a lathe, mill or any application where full torque is require throughout the motor speed range. Sensorless Vector VFDs are are also referred to as open loop vector drives; these drives are more complex than V/Hz drives and should always be applied to applications where high starting torque and/or full torque operating at low RPM is required. If speed feedback and/or extremely complex programming must be considered in your application you CANNOT use a sensorless vector VFD. Sensorless vector/open-loop vector VFDs do offer complex programming to a certain degree, but when your application exceeds sensorless vector programming features, there is a third solution.

Closed Loop Vector Variable Frequency Drives (VFDs)

This next level of VFDs are more advanced. Applications that require accurate speed regulation and feedback from the motor and/or require complex programming will require a closed-loop vector drive. This type of VFD is often offered as a “three in one” and able to operate in all operating modes.

  • V / Hz (Volts per Hertz)
  • Sensorless (Open Loop) Vector and
  • Closed Loop Vector

These products are complex and extremely efficient when properly applied. Used in the most complex, advanced manufacturing facilities across the world, closed-loop vector technology has few limits in drive technology. The product features are phenomenal. Applications where these products are utilized provide superior speed regulation and torque performance.

Before choosing a drive for your application consult with a qualified integrator, distributor, or manufacturer who will ask all the right questions and make an appropriate recommendation.  Here at Precision Electric Inc we offer proper service and telephone support from when you, or your qualified electrician, are setting up the drive for your application. Call us today.

Ryan Chamberlin
Inside Sales, Customer Support
[email protected]
Call Toll Free: 1.877.625.2402

Infrared thermography testing services

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Infrared inspections provide a means to view systems (electrical, mechanical, building envelopes) under normal operating conditions to identify abnormally hot (or cool) areas or components. This is a powerful maintenance tool. In many instances, equipment failure is preceded by a period of increasing heat. This is especially true of electrical equipment.

With infrared thermography you can identify overheating electrical connections and other machine components, scheduling repairs to be made during planned downtime. This increases reliability and productivity for the entire operation.

This thermogram shows a loose connection of the lug on incoming power supply. Operating equipment with loose connections can
cause many problems, some damages could be un-repairable

Financial Savings

  • Fewer interruptions while in operation mean more uptime and greater productivity.
  • Equipment problems are fixed before they fail and damage or destroy the rest of the machine.
  • Identifying developing problems and planning the repairs results in fewer “panic situations”, those costly predicaments that force excessive overtime and monetary premiums for emergency rush equipment orders.

This thermogram shows a loose fuse clip that needs tightened or replaced. Loose fuse clips could lead to serious equipment damages.

Safety

  • An industrial process that runs reliably and without surprises produces a safer work environment. Many industrial processes are complex and run at high speed. A sudden failure on one machine can have a cascading effect of failures that may include flying debris.
  • Fire avoidance. Overheated electrical connections can start fires. You may have heard of a fire in your area that it was caused by “faulty wiring”. This means many things including bad design and overloaded circuits. It also commonly means a bad electrical connection that was overheating and was not found in time.

Other advantages of thermography:

  • Shows a visual picture so temperatures over a large area can be compared
  • Able to find deteriorating: (higher temperature components prior to their failure)
  • Measure or observe in areas inaccessible or hazardous for other methods
  • Non-destructive test method
  • Locate defects in shafts, pipes, and other metal or plastic parts

Call Precision Electric, and schedule infrared thermography services to prevent unnecessary damages to your industrial equipment.

Ryan Chamberlin
Inside Sales, Customer Support
[email protected]
Call Toll Free: 1.877.625.2402