high frequency output vfd variable frequency drive & dynamic brake for lathe & mill



We often receive inquiries for variable frequency drives that are capable of high frequency output. Spindle applications such as CNC equipment generally use a high frequency output, up to 400Hz.

Customers often have trouble locating the proper product for these applications. Precision Electric offers a few different options for these type of applications. Our number one recommended product for high frequency output applications is the Lenze/AC Tech SMV Drive.

The SMV drive is designed for several types of applications, including high frequency output. The standard maximum output on many variable frequency drives is 60 -120 hz. The Lenze/AC Tech SMV has capabilities from 0-400hz, right out of the box. We also offer other Lenze/AC Tech products that have a high frequency output option; such as the Lenze/AC Tech MC series and Lenze/AC Tech SCF series drives. However, if you need either an SCF or MC series drive with high frequency output, you must specify that you need the high frequency option. The SCF and MC series products do not come factory equipped with the high frequency option unless specified when your order is placed.

Machine Tool applications such as the spindle on a CNC machine often run their equipment off of high frequency inverters. Typically dynamic braking kits are required when using high frequency output on this equipment.

When CNC machines are running at high speeds the inertia of the spindle causes the motor to become a generator once the stop button is engaged. Voltage generated from the motor goes back onto the DC bus in the drive. This often will cause the drive to trip on an “over bus fault”. This problem is addresed by adding a dynamic brake kit to the drive. The dynamic brake switch will turn on when the bus voltage reaches a preset level to disapate this excess energy across a set of resistors. This will prevent the drive from faulting. The required resistor wattage is determined by the inertia of the load and often requires more wattage than a standard dynamic brake kit will offer. The expert sales staff at Precision Electric will assist you when selecting a drive/brake package for these applications.

Ryan Chamberlin
Inside Sales, Customer Support
[email protected]

download Lenze AC Tech smv literature manual

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 out.

Ryan Chamberlin
Inside Sales, Customer Support
[email protected]

industrial wastewater treatment systems services

We’ve Been Servicing the Industrial World Since 1983.

Minimize Your Downtime. Maximize Your Productivity.

Call Toll Free: 1.877.625.2402


Sewage facilities must operate under severe conditions created by the constant flow of highly corrosive wastewater and must continuously pump and treat wastewater on a 24-hour basis. When heavy rain occurs, pumping stations must quickly drain away rainwater runoff. To ensure safe and reliable services, choose a trusted, quality provider for your corrective and preventive maintenance needs.
To keep your equipment in prime operating condition, or when a breakdown occurs, you can depend on Precision Electric to provide timely and professional support.

  • A single, reliable source for a wide selection of in-plant and shop services.
  • Proven support to reduce operating costs by minimizing downtime, improving efficiency and extending equipment service life.
  • Responsive to your needs 24/7.

While you can choose from any of the many services we offer, our sales representatives can help you select a blend of these services to meet your facility’s specific goals and requirements. No matter which you choose, you can be assured that your needs are being handled by the industry’s best-trained and equipped personnel to ensure you receive maximum value.

Click here to download our Wastewater Treatment brochure. If you have further questions give us a call or email me direct.

Ryan Chamberlin
Inside Sales, Customer Support
[email protected]

Should I use an Inverter Rated Motor VS General Purpose Motor

General purpose AC motors have been around for many years. An inverter-duty motor is a much newer concept that became necessary as motors began to be driven by variable frequency drives.

An inverter-duty motor can withstand the higher voltage spikes producted by all VFDs and can run at very slow speeds without overheating. This performance comes at a cost: inverter-duty motors can be much more expensive than general purpose motors.

General purpose motors can be run with drives in many applications; however inverter-duty motors are designed to handle much lower speeds without overheating and they are capable of withstanding higher voltage spikes without their insulation failing.

With the increased performance associated with inverter-duty motors comes an increase in cost. This additional cost can be worth it if you need greater performance.

Ryan Chamberlin
Inside Sales, Customer Support
[email protected]

How to Use a Three Phase Motor with Single Phase Power

We receive inquiries all the time from customers who have three phase equipment and need to operate the equipment from single phase power. The main question we get is “How do I size a three phase drive for single phase input supply?”

For those of you who are not already aware, we offer variable frequency drive products that are designed for single phase input, three phase output. The products that are available however max out at 3hp or 5hp.

If you have an application that exceeds the 3-5hp range you can de-rate a three phase variable frequency drive for use with single phase input power. The formula we use for de-rating variable frequency drives for use with single phase power is as follows: We start with the motor current and multiply it by 1.73, then we take the revised current and size a variable frequency drive with the corresponding amps.

For example. Lets say I have a 7.5hp motor that pulls approximately 23 amps; I want to use a vfd, however I only have single phase 230V line voltage. I need to multiply the 23 amps by 1.73 which gives me the new revised current (39.73 amps) Now I know I need a three phase 230V drive that is rated at 40 amps or higher. A vfd that is rated at approximately 40 amps is about 15hp, and for this particular application would run a 7.5hp 240V drive perfect on 240V single phase power.

Precision Electric, Inc highly recommends contacting us or someone with experience to safely install variable frequency drives and/or electric motors.

 

Industrial Manufacturing Control Panel Design & Manufacturing

We’ve Been Servicing the Industrial World Since 1983.

Minimize Your Downtime. Maximize Your Productivity.

Call Toll Free: 1.877.625.2402


For more than 27 years Precision Electric, Inc has been a recognized leader in the design and manufacture of custom control panels. We specialize in retro-fitting equipment for customers with obsolete and non-efficient equipment using the newest available technology.

Our dedicated engineering and manufacturing staff can design, build a solution, provide comprehensive field installation and start-up services, and support for a wide range of industries.

Products range from simple operator stations to multi-door control cabinets for production equipment. We also provide application specific design and build of industrial computer and PLC machine control systems. Our order volumes range from one-of-a-kind assemblies to multiple units.

Field Services:

Precision Electric provides a comprehensive portfolio of engineering and technical support services to the industries we serve, including:
• On-site engineering, installation and commissioning
• Custom report writing and field documentation
• PLC programming and custom software
• And more

Ryan Chamberlin
Inside Sales, Customer Support
[email protected]


How to Repair Loose/Bad Electrical Connections

We’ve Been Servicing the Industrial World Since 1983.

Minimize Your Downtime. Maximize Your Productivity.

Call Toll Free: 1.877.625.2402

Are you experiencing a problem with your electrical connection?

Typically one of two issues cause connection problems:
1. Loose connections
2. Bad connections-resulting from the following:

  • Using incorrect lug-bolt-screw sizes
  • Cross-threaded connections
  • Oxidized contacts
  • Wrong wire size
  • Connection contact corrosion

Many peoples’ first response to connection problems is to tighten a bad connection, however this usually does not help. Tightening a bad connection usually creates more problems to existing conditions. The best solution to repair a bad connection is to uninstall connection, clean or replace bad parts, and reinstall connection.

If you’re certain a connection only needs tightened the best way to ensure the connection is not over tightened is by using a torque wrench with the correct values recommended by the manufacturer.

If you have an electrical board or other related piece of equipment that needs connections repaired, your best solution is to send it Precision Electric so we can inspect and repair your equipment beyond the OEM’s standards. We have been working on industrial manufacturing equipment since 1984. Our products and services exceed that of our competitors.

Ryan Chamberlin
Inside Sales, Customer Support
[email protected]

Lenze-AC Tech Variable Frequency Drive Products

Variable frequency inverters are used for electronic speed control of AC induction motors. The needs of the market are wide and varied, and we offer a broad range of standard products for everything from simple speed control to complex; each with a wide range of functionality, small physical size and exceptional performance. Our drives are reliable, flexible to apply, easy to commission, and meet the highest standards of quality. Lenze-AC Tech provide solutions to fulfill nearly any inverter requirement in the power range between 0.25 and 400 kW.

SMV Standard Enclosure

  • NEMA 1 (IP31)
  • 120V – 600V
  • 0.33 to 30HP ( 0.25 – 22kW)
  • Open-loop Vector, V/Hz

Washdown Enclosure

  • NEMA 4X (IP65)
  • 120V – 600V
  • 0.33 to 30HP ( 0.25 – 22kW)
  • Open-loop Vector, V/Hz

Integral Disconnect

  • NEMA 4X (IP65)
  • Integral Motor & Drive Disconnect
  • 0.33 to 10HP ( 0.25 – 7.5kW)
  • Open-loop Vector, V/Hz

MC Series

  • 120-590V
  • 00.25 to 150 Hp (0.18-110kW)
  • NEMA 1 (IP31), NEMA 4(X) (IP65), NEMA 12 (IP54)
  • V/Hz

MCH Series

  • 200-590V
  • 1.0 to 250 Hp (0.75-185kW)
  • NEMA 1 (IP31), NEMA 4(X) (IP65), NEMA 12 (IP54)
  • V/Hz

Lenze – AC Tech offers many other products including but not limited to servo drives, gearmotor drives, and more. To learn more about additional Lenze – AC Tech products please contact me direct.

Ryan Chamberlin
Inside Sales, Customer Support
[email protected]

Lenze-AC Tech MotionMatch Sizing Software for Servo Drives and Motors

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

Call Toll Free: 1.877.625.2402


Lenze-AC Tech company officials describe the combination of MotionMatch motor sizing software and MotionView drive configuration software as a powerful yet simple solution to motion control management.

According to Darrow Hanesian, Director of Product Management at Lenze-AC Tech, “Sizing a motor shouldn’t be rocket science and neither should programming a servo drive.” Hanesian states that Lenze – AC Tech’s MotionMatch, used with the existing MotionView, takes all the guess work out of pairing a servo drive and a motor, plus the user can now configure the drive with infinite ease.

“Our application engineers often get asked about the right size motor for a customer’s application; unfortunately, however, the question usually comes after some failure has occurred” says Hanesian. Deb Kling, Lenze-AC Tech Marketing Manager, agrees, “With thousands of drive and motor combinations to choose from, it is no wonder that customers get frustrated with the selection process; with MotionMatch, all you need to do is enter your application requirements and the program will return the compatible servo drive-motor combinations.”

Precision Electric has been an authorized repair and distribution facility for Lenze-AC Tech products since 1996. We have been offering solutions for technical support, retrofitting, engineering and other related topics to our customers since 1984. We offer several different products and services, however, one of the most reliable product lines Precision Electric offers is the Lenze-AC Tech product line.

Ryan Chamberlin
Inside Sales, Customer Support
[email protected]

Industrial Manufacturing Equipment Monitor and Touchscreen Repair

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

Call Toll Free: 1.877.625.2402


Here at Precision Electric, LCD and CRT Touch Screen Monitors are expertly repaired and serviced. We repair Touchscreen monitors by most manufacturers every day. Resistive, Capacitive and Acoustic Wave Touchscreens are serviced.
Most Touch Screen Monitors can be repaired for a fraction of what it will cost to buy new one. For a free repair estimate email or call for a  RMA (request service authorization) form.
The following is a list of the more popular touch screen monitor manufacturers we service and repair: (If your touch screen monitor manufacturer is not shown here, most likely we can still offer service on your equipment)

  • Allen Bradley
  • Fanuc
  • Crystal
  • ELO Touch Systems
  • Micro Touch Systems
  • NEC
  • Okuma
  • LG

Precision Electric also offers emergency repair services 24/7/365. If your broke down and need something repaired immediately, we will work around the clock until your equipment is repaired. To expedite your repair work call Precision Electric and we will place your equipment to be repaired with priority.

If you have any questions or need further information email or call me direct.
Ryan Chamberlin
Inside Sales, Customer Support
[email protected]

Food Processing Manufacturing Industrial Products & Services

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

Call Toll Free: 1.877.625.2402


High humidity and daily washdowns can take their toll on the best food processing equipment. Precision Electric offers superior performance products, repair and maintenance services to keep your pumps, compressors, blower assemblies, and other critical machinery running at peak performance. To keep your equipment in prime operating condition, or when a breakdown occurs, you can depend on us to provide a wide selection of support.

Precision Electric offers Nema 4x enclosed drive products, Nema 4x gearboxes, pumps, custom control cabinets, AC electric motors, among several other food processing machinery and equipment; we also have capability to rebuild your machinery and equipment. Proven support to reduce operating costs by minimizing downtime, improving efficiency and extending equipment service life.

We are responsive to your needs 24/7. While you can choose from any of the many products and services we offer, our sales and support representatives can help you select a blend of these services to meet you facility’s specific goals and requirements.

Be it a new, existing or anticipated project, let us go to work for you. We have over 100 years of combined experience in the industrial manufacturing industry and we have been in business since 1983. If you have equipment that needs rebuilt we offer those services to our customers as well.

You can send in anything to Precision Electric for repair; from servo motors, circuit boards, servo drives to plc’s, AC/DC electric motors, pumping equipment and more. We will provide you with a free quote upon receiving your equipment. In many cases we offer quote estimates prior to you sending your equipment to us.

Click here to see our Industrial Food Processing Solutions brochure.
Ryan Chamberlin
Inside Sales, Customer Support
[email protected]

Industrial AC/DC Electric Motor and Drive VFD Repair

We’ve Been Servicing the Industrial World Since 1983.

Minimize Your Downtime. Maximize Your Productivity.

Call Toll Free: 1.877.625.2402


Precision Electric’s motor repair services division offers both large and small repair operations. This assures that a small motor gets the same attention and quality service we apply to a large motor.

Most motor repair facilities in our industry use ‘assembly line’ procedures. Unlike the competition Precision Electric has a more successful and unique way to make repairs. 9 times out of 10 the same mechanic who starts a repair job, finishes it. This is to ensure 100% quality from start to finish on our repair services.

We troubleshoot, repair, rebuild, and rewind both form-wound and random-wound machines. Among other things, this includes all types of electric motors, generators, transformers, clutches, brakes, pumps, gearboxes, blowers, fans, shafts, sleeve bearings, and hoist.

Below are a few general services Precision Electric offers:

rotary apparatus repair
electric motor repair
drive repair (ac/dc)
servo motor repair
servo drive repair
mechanical repairs
pump repair
gearbox repair
and much more

The Precision Electric in-service warranty is another advantage we have over our competitors. We encourage customers to have all spares rebuilt and ready for immediate replacement; this is to ensure maximum production with little to no downtime. Our in-service warranty begins the same day our customers install equipment rebuilt by Precision Electric, and ends 12 months later.

If you have any questions or you need additional information, email or call me direct.

Ryan Chamberlin
Inside Sales, Customer Support
[email protected]