Cutler Hammer VFD

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Cutler Hammer VFD drives can reduce energy consumption from 10 to 50 percent by adjusting the speed of its corresponding electric motor to its needed output. Cutler Hammer VFD drives allows for steady speed error, fast torque rise time, high immunity to resonance vibrations and high starting torque and current. Cutler Hammer VFD drives can be customized to fit multiple motor drive systems and high-speed applications. Cutler Hammer VFD drives can be designed specifically for high-performance applications with high processing power, and the ability to use information from an encoder or resolver to provide precise motor feedback control. Cutler Hammer VFD drives also offer a unique microprocessor to provide high dynamic performance for applications where precise motor handling and reliability are required.

The Cutler Hammer DG1 General-Purpose drives are part of the Eaton next-generation PowerXL series of variable frequency drives specifically engineered for today’s more demanding commercial and industrial applications. Cutler Hammer DG1 General-Purpose drives offer an industry-leading energy efficiency algorithm, high short-circuit current rating and robust design, safety and reliability. Cutler Hammer LCX9000 drives are liquid-cooled products that utilize potable water or a water-glycol mixture as a cooling medium. The LCX9000 has a compact size and low heat transfer rates to allow the enclosure size to be greatly reduced, which is especially beneficial in UL Type 4X applications.

Cutler Hammer PowerXL Enclosed Drives are a next generation enclosed drive platform that packages Cutler Hammer’s PowerXL DG1 and SVX drive families in a fast and reliable design solution. Cutler Hammer CFX9000 Clean Power Drives use tuned passive filters to significantly reduce line harmonics at the drive input terminals. These drives are an excellent choice for small and midsize applications where harmonics are a concern. Cutler Hammer VFD CPX9000 Clean Power Drives are used for water, waste water, HVAC, industrial and process industries where harmonics are present. They offer one of the purest sinusoidal waveforms available.

Cutler Hammer MVX9000 Micro Drives are sensorless vector variable frequency drives are designed to provide adjustable speed control of three-phase motors. Eaton SLX9000 General Purpose drives are compact, yet powerful drive is based on the more robust SVX9000. It is designed to be the next generation of drives specifically engineered for modern commercial and light industrial applications.

Obsolete Cutler Hammer VFD Drives

The HVX series of Cutler Hammer VFD drives are obsolete. The HVX series of Cutler Hammer VFD drives are currently replaced by Cutler Hammer VFD Eaton H-MAX drives. The HMAX series of HVAC frequency drives are designed to the HVAC market for fan, pump, and fluid control applications. The patented energy savings algorithm, high short-circuit current rating and intuitive user interface provide customers an energy efficient, safe, and easy to use solution for adjustable frequency drive needs. The H-MAX drive supports the increasing demand for energy savings in buildings, systems and facilities. Built in capabilities and unique features provide a competitive solution that can add value to any end user.

The MVX9000 series of Cutler Hammer VFD drives are obsolete and replaced by Cutler Hammer VFD Eaton M-MAX drives. The M-Max Drive is a compact micro drive with a broad power range. The M-Max series of Cutler Hammer VFD HVAC frequency drives feature board coating, unique mounting characteristics, simple programming, and 50°C Rating to make the M-Max perfectly suited for machinery applications in many industries. Typical applications for the M-Max drives include Food and Beverage, HVAC, Packaging, Pumping, Textile, OEM, and more.

For Cutler Hammer VFD Repair and Replacement quotes, Contact Precision Electric.

Allen Bradley VFD Repair

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Allen Bradley VFD repair is less expensive and quicker than Allen Bradley VFD replacement. The most economical way to get an Allen Bradley VFD repair is by going directly to an Allen Bradley VFD repair center such as Precision Electric, instead of using a local vendor who doesn’t even perform the VFD repair themselves. Precision Electric performs all Allen Bradley VFD repair in house.

Checking the motor and drive terminal connections is a step many people miss or do incorrectly during an Allen Bradley VFD repair. Heat cycles and mechanical vibration can lead to sub-standard connections, as can standard preventative maintenance practices. Reusing torque screws is not a good Idea, and further tightening an already tight connection, can ruin the connection. Bad connections eventually lead to arcing. Arcing at the drive input terminal can result in nuisance over voltage faults, clearing of input fuses, or damage to protective components. Arcing at the drive output terminal could result in over-current faults or even damage to the power components. Loose connections can cause erratic operation. For example, a loose START/STOP signal wire can cause uncontrollable drive starting and stopping. A loose speed reference wire can cause the drive speed to fluctuate, resulting in scrap, machine damage, or personnel injury.

Conduct Diode and IGBT Tests
There are a number of methods to test the input and output power sections during an Allen Bradley VFD repair, and this step is done prior to applying power to the drive unit. If for any reason there is a short on the input side or output side of the drive, further damage can be caused to the unit if power is applied to it. For this reason, Precision Electric uses meters to properly test the input and output power sections of the drive prior to applying power to the actual unit. If a short is found, the unit can be disassembled and the cause of the short can be diagnosed and quoted for repair. If the Allen Bradley VFD repair is too costly, then, VFD replacement is offered to the customer.

Power Up Unit
If the input and output power sections test healthy during the Allen Bradley VFD repair, Precision Electric will power the unit and perform amp reading and output frequency tests. Precision Electric slowly increases the power voltage during this step of the Allen Bradley VFD repair. The power voltage is slowly increased on the Allen Bradley VFD until the rated input voltage of the drive is reached. Depending on whether or not the Allen Bradley VFD provides a display will determine what further action will be taken. If display is unavailable, disassembly and diagnosis of the internal power supply of the control section of the drive is necessary to further evaluate cause of failure and establish cost and lead time for the Allen Bradley VFD repair.

Run A Motor
If the previous three tests have passed during an Allen Bradley VFD repair, Precision Electric will run a basic jog function of the drive with a simple template program. When a VFD comes into our facility, we make sure to backup all existing programs stored in the drive prior to inputting a template program to run a test procedure. This ensures that we have a backup copy of the program. The best method for backing up depends on the brand of drive, but after it has been backed up, we perform a basic reset of the Allen Bradley VFD to factory defaults through the keypad and then recommission a basic start, stop and job application or closed loop if an encoder is involved. If the motor will not run, it will be necessary to check the output voltages and current ratings going to the motor to see if the drive is functioning properly to rotate the motor.

Routine Maintenance
Most Allen Bradley VFD repair / failure can be prevented with routine maintenance. Allen Bradley VFD repair cost and lead times can also be reduced with routine maintenance. Allen Bradley VFD repair can be expensive and cost manufacturers production downtime during the repair process. Most manufacturers keep spare drives in stock to prevent production downtime during the Allen Bradley VFD repair.

Allen Bradley VFD repair should be taken with extreme caution and only be performed by technicians who have required training and experience to work with electrical equipment. Precision Electric strongly recommends to consult an expert in the field when repairing all industrial electrical equipment. Many drive controllers have an internal DC bus that retains a charge after power has been cut to the drive, as a result, it does not mean it’s safe to work with. Technicians working Allen Bradley VFD drives and other electrical equipment must always take extra precautions to ensure proper safety measures are taken, or injury or even death may occur.

Most companies who offer Allen Bradley VFD repair do not even perform the repair in their facility. These companies outsource the repair to a third party such as Precision Electric. Precision Electric always receives Allen Bradley VFD repair jobs from companies who offer Allen Bradley VFD repair. Those third party repair companies just mark up the repair cost to their customers.

Call Precision Electric today for Allen Bradley VFD Repair Quotes.

Servo Motor Repairs

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Servo motor repairs are less expensive and quicker than servo motor replacements. Servo motor repairs should be taken with extreme caution and only be performed by technicians who have training and experience to work with electrical equipment. Most companies who offer servo motor repairs do not even perform the repair in their facility; instead, these companies outsource the repair to a third party such as Precision Electric. Precision Electric always receives servo motor repairs from companies who offer servo motor repair services. Third party repair companies take longer to return equipment to their customers and third party repair companies mark up the repair cost to their customers. Precision Electric recommends verifying that the company offering repair services is the company actually repairing the equipment.

Servo motor repairs should always go through an extensive evaluation process to ensure nothing is overlooked. The servo motor should be connected to a test stand to check back emf, encoder or resolver feedback, and commutation alignment to ensure functionality once the motor is installed into productions. Servo motor repairs need to be tested with an oscilloscope and once an operation printout is generated, the technician will check for connection issues, magnet failure, winding failure, and 100% component testing. Servo motor repairs at Precision Electric are initially inspected for cosmetic damage and then they are meter tested before test running on a control panel. Most servo motor repairs have unique testing procedures dependent upon the manufacturer operations and prints, but the general process follows standard test procedures.

It’s also necessary for Precision Electric to work closely with all servo motor manufacturers. Working closely with servo motor manufacturers allows Precision Electric access to technical data sheets that are needed to ensure that the the servo motor performs optimally prior to shipping the repaired unit back to customer.

Precision Electric standard servo motor repairs are subject to:

  • An inspection of all electrical and mechanical servo motor parts.
  • Re-magnetize magnets when necessary,
  • re-manufacture servo motor flange using the original flange and factory dimensions
  • repair or rewind servo motor winding, insulation, connections, steam clean and bake
  • replace brush holder and brushes (or repair brush holder if obsolete)
  • test to confirm there are no grounded electrical parts in the servo motor.
  • all AC stators are surge tested to at least 1500 volts This ensures that the insulation and windings will withstand the loads put on the servo motor when running on a machine.
  • after the bakin g process, DC Servo motor armatures go through a bar to bar test. This test will show if there are any shorts or opens in the winding.
  • servo motor alignment
  • High-grade sealed bearings
  • Double lip seals in the front flange
  • Replace all new seals, O-rings, gaskets and connectors
  • Two part epoxy coating for an added protection

After servo motor repairs and preliminary testing are complete, the servo motor is reassembled for final testing. Servo motor repairs are not complete until after final testing procedure is performed. During the final test procedure, servo motors should be connected to an inverter drive with and without a load, to ensure functionality before returning to customer. Final testing also allows verification that the servo motor can operate at full voltage and withstand full load amps of the motor specifications.

Servo motor repairs should only be performed by facilities that work closely with all servo motor manufacturers so that the newest servo drives are being used in conjunction with their corresponding servo motors. Precision Electric recommends all manufacturers keep spare servo motors on crucial production lines. Keeping a spare can minimize downtime and prevent production losses while repair services are being processed. Servo motor repairs performed by Precision Electric includes a 12 month in-service warranty. The Precision Electric in-service warranty begins the day the servo motor is put into production and ends 12 months later.

For pricing on servo motor repairs and servo motor replacements, contact Precision Electric.

 

Hitachi Inverters

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Hitachi inverters can be utilized for an array of industrial applications. Hitachi inverters are equipped with several advanced features, and deliver unprecedented performance, reliability, and flexibility. Hitachi inverters are a result of a high degree of commonality between each model and the user-friendly configuration software, making them easy to install, program, and maintain. Hitachi inverters are manufactured to provide an economical solution for industry’s most challenging applications.

NE-S1 Hitachi Inverters

NE-S1 Hitachi inverters are simple to use for speed control solutions are are available in the popular horsepower range of 1/2 hp through 5 hp. NE-S1 inverters have an ultra-compact design, and are pre-configured for out of the box integration in most applications to suit the needs of both OEMs and System Integrators. NE-S1 inverters reduce installation space by attaching FFM, so ventilation is exhausted to the front. This allows the inverter to save panel space and cost to the overall installation. NE-S1 inverters improves capacitor life by attaching FFM to applicable model. The expected life of the aluminum electrolytic capacitors is approximately doubled, adding longevity to NE-S1 inverters.

NE-S1 inverters are seen in many applications such as:

  • Air conditioning systems
  • Fans and blowers
  • Clean rooms
  • Pumps
  • Water and wastewater pump systems
  • Tank-less water supply and drainage systems
  • Food Processing Machines
  • Slicers
  • Mixers
  • Confectionery machines
  • Fruit Sorters
  • Machine Retrofits for all industries

 

SJ700D Hitachi Inverters

SJ700D Hitachi inverters outperform on performance, capabilities and functions of its predecessor, the Hitachi SJ700B Series. SJ700D inverters come with improved sensorless vector (SLV) control algorithm, which allows the SJ700D Series to develop 150% torque at 0.5 Hz, ideal for a wide range of applications. Another key upgrade in the SJ700D Series is the addition of Hitachi’s EzSQ (Easy Sequence) built-in programming function, which provides the functionality of a PLC built into the inverter. SJ700D inverters offer built in programming functions. Sequence operations are used by downloading programs created with Hitachi’s EzSQ software and then transferred to the Hitachi inverters. Operation of SJ700D inverters can be tailored to meet changing process requirements and SJ700D inverters can replace separate PLC’s in some cases to simplify or eliminate external hardware, which reduces cost and increases performance. SJ700D Hitachi inverters through 150kW have a built-in EMC filter to reduce electromagnetic noise, cost and space. SJ700D inverters have a lifetime warning function to allow preventive maintenance before a failure occurs.

WJ200 Hitachi Inverters

WJ200 Hitachi inverters are designed for excellent performance and user friendliness. The WJ200 series is available in power ranges from 100-200VAC and single phase input to three phase output. The WJ200 series has an integrated auto-tuning function for easy sensorless vector control. Sensorless vector control allows for high starting torque of 200% or greater and is suitable for a variety of applications. Simplified auto-tuning procedure for WJ200 inverters allow for ease of setup and operation via standard integral keypad, optional enhanced keypad or via PC software. There’s also a built-in dynamic braking transistor in all WJ200 inverter models. WJ200 inverters are capable of driving permanent magnet as well as standard induction motors. WJ200 inverters are seen in a wide range of industrial manufacturing applications.

To learn more about Hitachi inverters or for Hitachi Inverter repair and replacement quotes, contact Precision Electric.

ABB Field Service

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ABB field service should only be performed by ABB-certified engineers. ABB-certified engineers must complete ABB startup training courses to qualify for ABB extended warranties. ABB field service offered by Precision Electric provides professional troubleshooting, diagnosis and repair skills, installation and commissioning services all at the jobs site for manufacturers to optimize drive safety, availability and performance.

ABB field service helps to minimize installation and commissioning time and cost. Manufacturer service needs depend on their operation, life cycle of equipment and business priorities. ABB has identified their customers’ four most common needs and defined service options to satisfy them. It’s imperative to keep ABB drives at peak performance. Operation depends upon the most optimal configuration, set up and maintenance programs. When it comes to important operations, everything needs to be done correctly from the start. From commissioning to spare parts and preventive maintenance, Precision Electric is with the customer through the entire process. Manufacturers need to have all the support to correctly install and run drives efficiently. ABB field service performed by ABB-certified engineers can undertake the entire drive installation and commissioning for the customer. Correctly installed drives are more reliable, and well-commissioned drives lead to energy savings and lower operational costs.

ABB Field Service And Preventive Maintenance

ABB field service and preventative drive maintenance schedule manages the parts replacement at the right time. This regular maintenance keeps costs down, prevents drive repair, and keeps lifetime performance optimal. There are preventive maintenance kits designed to match specific drive types. Highly skilled and trained engineers carry out all annual inspections and component replacements accordingly. Life cycle management is one of the most important aspects in defining ABB field service. ABB field service performed by Precision Electric combines experience and top solutions to extend, analyze and optimize the life cycle of ABB drives. When customers need information on the condition of their equipment and the life cycle of components, Precision Electric provides help in diagnosis and assessment of ABB drives in a modern and easy service.

ABB Field Service And Life Cycle Assessment

ABB field service and life cycle assessment gives manufacturers powerful knowledge to determine exactly where process stands, now and in the future. Reconditioning an ABB drive improves the ABB drive reliability and extends its lifetime. ABB recommends these services at least once in every drive’s lifetime. Reconditioning ABB drives at Precision Electric provides restoration of ABB drives to their original condition and includes a full inspection, thorough cleaning, individual component analysis and replacement, and final testing with and without a load. Every drive reconditioned by Precision Electric is thoroughly tested and comes with a one-year warranty. Control Upgrade services ensures full life cycle services for ABB legacy drives by removing all concerned components and replacing them with upgraded components. Investment costs and process downtime are minimized with an engineered solution in the life cycle assessment process.

For more information or for ABB field service quotes or ABB drive repair and replacement quotes, Contact Precision Electric.