Lenze USA VFD Drives

Lenze USA VFD Drives

Lenze USA is a manufacturer based out of Uxbridge, Massachusetts. Lenze USA is also known as Lenze Americas and AC Tech. Lenze USA manufactures high-performance VFD Drive products used to optimize new and existing machinery. Lenze USA is one of the leading drive and automation specialists in the field of machine engineering. Rapidly changing times present manufacturers with new and varied challenges. To succeed in the future, manufacturers will need to handle more extensive tasks in even shorter time frames; Lenze USA aims to reach this ideal.

SMV Series: The SMV series of Lenze USA VFD drives offer sophisticated auto-tuning and fast dynamic torque response. The SMV is designed for motor applications where dynamic speed and torque control is demanded. The SMV series is an attractive solution for a broad range of applications including: food processing machinery, packaging machinery, material handling, conveying systems, HVAC systems, and more. The SMV series uses an Electronic Programming Module (EPM) for programming. Maintenance techs can easily use the EPM to reconfigure drive parameters or reset the drive. When a drive reset is necessary on the SMV, customers can reset to factory default or preset settings within seconds. When SMV drives must be replaced, the parameter configuration can be saved by the user by simply plugging in the pre-programmed EPM.

MC1000 Series: The MC1000 Series of Lenze USA VFD drives are the intelligent, versatile and cost-effective choice for industrial applications. From harsh environments to high torque loads, the M1000 Series drives meet the toughest requirements with reliability, at a low cost. Customers can easily program the MC Series and integrate extensive I/O with an array of programmable functions. The M1000 is available in power ranges of 1/4 to 150 HP. The MC1000 offers Enhanced Torque System (ETS). ETS allows maximum starting and accelerating torque and tight speed regulation, even under fluctuating load conditions. M1000 drives feature manual boost for high starting torque, and auto-boost for high torque acceleration at any speed. The M1000 features power-up & auto restart modes, sleep mode with adjustable speed threshold and time. The MC1000 also offers an optional Form C Relay and Dynamic Braking.

M3000 Series:The M3000 series of Lenze USA VFD drives are for process control demands with fast acceleration and response. The M3000 is rated for constant torque applications but can easily be configured for variable torque applications. Most Process Control drives are designed for variable torque applications where the motor is driving a centrifugal fan or pump. As such, these drives are limited to 110% current for overload situations such as acceleration or responding to a feedback change. The MC3000 is a true Constant Torque drive rated for 180% of rated current for 30 seconds and 150% for one minute. This allows faster response to system changes and the ability to apply the MC3000 to non-centrifugal applications such as compressors, conveyors and other constant torque loads. The M3000 is available in the same power ranges and voltages as the M1000.

MCH Series: The MCH series of Lenze USA VFD drives are available from 1 to 250 HP. The MCH series were designed for the HVAC market and specific requirements of industrial and commercial installations. The MCH series are designed to operate standard induction motors. The MCH Series offers intuitive operator interface using simple programming and operational information. The MCH series allows drive software to adjust the motor speed to maintain a preset pressure, flow, temperature or other variables using PID setpoint control. The MCH Series include UL and cUL approved motor protection for single motor applications. The MCH Series is seen in applications such as fans, pumps and cooling towers.

To learn more about Lenze USA, visit the Lenze Website. For Lenze USA repair or replacement quotes, contact Precision Electric.

Compressor Speed Control Products – Repair Or Replace?

A compressor speed control is also known as a VFD, variable frequency drive, adjustable speed drive,or an inverter. To repair the compressor speed control, unique experience and training are needed. Repairing a compressor speed control should be taken with extreme caution. Alwaysconsult an expert in the field when repairing or troubleshooting industrial electrical equipment. Most compressor speed controls have an internal DC bus that retains a charge after power has been cut to the drive, and as a result, the power being cut doesn’t mean that the equipmentissafe to work with. Technicians working with a compressor speed control and other electrical equipmentmust always take extra precautions to ensure proper safety measures are taken to prevent injury or death.

Compressor Speed Control, Repair Or Replace?

Compressor speed control repair services are an assetfor Sullair service centers and other manufacturers. In most cases, the replacement of a speed control is more expensive and more time consuming than a repair. The extent of damage present in a compressor speed control will determine whether or not the equipment can be repaired. The speed control must be tested, disassembled, and inspected thoroughly by trained technicians to diagnose the cause of failure and determine repair cost.

Most companies who offer repair services for speed control products, outsource the repair to third party repair centers. Then, the service center offering this repair service, will mark up the cost for being the “middle man”. Precision Electric performs these repairs for third parties every day. Sometimes the speed control manufacturer also offers repair services but then once they have the speed control in their possession, they tell the customer that the speed control cannot be repaired and needs to be replaced. Precision Electric repairs compressor speed control products all the time after manufacturers have deemed the equipment “not worth repair” or“needs to be replaced”.

Eaton Cutler Hammer, for example, is a manufacturer of speed control products, that offers VFD repair services for their products. Sending the speed control to Eaton for repair isn’t the most economical solutionbecause Eaton has extensive lead times for repairs, and Eaton almost always ends up recommending replacing the entire speed control.Precision Electric offerscomplete Eatonspeed control repair and all repairs are performed in house, at Precision Electric.

Over the past decadeVFDtechnology has become a cost efficient way to reduce power costs and increase system efficiency. Manufacturers within a wide range of industries are finding more ways to apply VFD’s to their rotating equipment.From past experience, smaller horsepower VFD’s typically fail in eight years and are more often replaced rather than repaired.Larger horsepower VFD’s last longer by virtue of repairs that often require replacement of circuit boards and other electrical components.

To repair or replace your compressor speed control products, contact Precision Electric.

 

 

VFD Drives For Dummies

VFD Drives For Dummies

VFD Drives For Dummies: VFD is an abbreviation that stands for “variable frequency drives”. VFD Drives are also called “variable speed drives”, “adjustable speed drives”, “electric motor speed controllers”, and “inverters”. VFD Drives For Dummies: Every VFD hasits own component characteristics, so how each VFD works is dependent upon components within the VFD. Most VFD Drives for Dummies integrate a solid state electronics controller consisting of a bridge rectifier, a converter, and an inverter module.

Voltage-source inverter drives are the most common VFD Drives For Dummies. These drives convert AC line input to AC inverter output. There are some applications that use common DC bus and solar applications. These type of drives are configured as DC to AC drives. The bridge rectifier converter for volts per hertz drives is configured for 3 phase AC electric motors. The majority of variable frequency drives contain electronic circuitry that converts 60 Hertz Line power into direct current. The variable frequency drive converts this line power into a pulsed output voltage that duplicates varying alternating current to a desired frequency (speed). VFD drives were first introduced in 1983, and the insulated gate bipolar transistor has in the past 20 years become the standard for VFD drives as an inverter switching device.

VFD drives for dummies: Manufacturers will apply variable frequency drives to rotating equipment to reduce amperage spikes upon start up of large electric motors. Choosing the right VFD for an application will benefit rotating equipment by providing less wear on the electric motors where applied. Adjusting the acceleration and deceleration time of electric motors can extend the lifespan of an electric motor. Variable frequency drives provide the ability to control the frequency of starting and stopping of an AC electric motor. This ability allows an AC electric motor to only operate when needed for the equipment its rotating, and electric motors have a longer lifespan if they are only running when they need to be.

Approximately one third of the worlds electrical energy is supplied by electric motors in fixed-speed centrifugal pump, fan, and air compressor applications. These fixed-speed applications hardly ever require the full load speed (RPM) of the electric motor in which theyre operating. By installing a VFD to these applications, electric motor speeds are reduced, and power costs can be reduced by 50% or more. Technology has allowed cost and physical size reduction of variable frequency drives, and has improved performance through advances in technology.

Properlypaired VFD drives with the correct electric motor will significantly reduce operating costs for manufacturers. This is particularly true for variable torque loads such as fans, blowers, and pumps. Blowers are often used with dampers to control air flow; these dampers may operate either manually or automatically. When dampers are closed, 50% of the electric motor current will drop to approximately 60% of full load nameplate current. By utilizing variable frequency drives in blower applications, the current draw of the motor will be reduced 30% for every 10% drop in speed. The same electric motor operating from an AC variable frequency drive at 50% speed, will draw approximately 20% of the full load current.

Please watch our YouTube Video to learn more about VFD Drives For Dummies. For VFD repair and replacement quotes, contact Precision Electric, Inc.

HMI Solutions

HMI Solutions

HMI solutions allowforinteractive operation and control between humans and machines. An HMI (human-machine interface) provides feedback from the industrial machine to the end user. This feedback allows the end user to make changes so that the machine is more effective in production. An HMI can also provide a way to control, manage, monitor and visually operate processes during production.HMI solutions are usedin robotics, process controls, ergonomics, PLC and other industrialapplications.

An industrial HMI systems processing power determines its usability and its ability torender complex screens. An HMI’s fastresponse time to user input and exibility tohandle multiple levels of operator interactions is also determined upon the processing power within the HMI.HMI’s require dynamically changing graphics that require a high-performance solution that can achieve the 60 frame per second refresh rate that’s required at the rightresolution. HMI’s also have to support multipleconnectivity and communications protocols tocommunicate between the operator and variousmachines and control systems.

HMI solutions range from simple displays to high resolution LCD panels. HMI solutions can be mounted on a user’smachine, portable handheld devices, or installed in centralized control cabinets. With HMI, users can process control to connect sensors, actuators and machines on the plant oor; to I/O control and PLC systems.

ABB HMI Solutions

Individual ABB HMI solutions provide operators with an overview on profitable production – coupled with the ability to manually intervene, if necessary. ABB HMI solutions makecommunication protocols possible these control panels the ideal complement to ABB PLCs, Drives and Robots.The control panel series CP600 provides HMI solutions with color touch screens from 4.3 to 15.

The ABBCP600 range is dedicated for machines and systems requiring visualization performance or representative design. The CP600-WEB range is similar to theCP600, while the visualization is based on the web server of the AC500 PLC platform. This provides the user with an advantage of less cost.

Call Precision Electric For HMI Repair And HMI Replacement Quotes.

Eaton VFD M

Eaton VFD Motor Drives

Eaton VFD motor drives can reduce energy consumption in factories from 10 to 50 percent. Technicians achieve thisenergy reductionthrough motor speed reduction. Since most equipment does not require the full load motor speed for effective production, an electric motor’sneeded output speedis reducedvia Eaton VFD motor drives. Reduced energy consumption lowers utility expenses and in some cases, the investment of Eaton VFD motor drives quickly pay forthemselves.

The DG1 general-purpose Eaton VFD motor drives are part of thePowerXL series. The DG1is specifically engineered for todays moredemanding commercial and industrial applications. EatonDG1 drives offer an industry-leading energy efficiency algorithm, high short-circuit current rating, safety, and reliability. The LCX9000 drive is liquid-cooled to utilize potable water or a water-glycol mixture as a cooling medium. The LCX9000 drive has a compactsize and low heat transfer rates to allow the enclosure size to be greatly reduced, which is especially beneficial in UL Type 4X applications.

The CFX9000 clean power Eaton VFD motor drives use tuned passive filters to significantly reduce line harmonics at the drive input terminals. These drives are idealfor small tomidsize applications where harmonics are problematic. The CPX9000 drives are used for pump, waste water, HVAC,industrial and process industries, where harmonics are present. They offer one of the purest sinusoidal wave forms available in the VFD market.

The SVX9000Eaton drive offers sensor-less vector technology with an adaptive motor model and sophisticated ASIC circuit. This technologyallows for steady speed error, fast torque rise time, high immunity to resonance vibrations and high starting torque and current. The SVX9000 is suitable for multiple motor drivesystems and high-speed applications.

Eaton VFD MotorDrives That Are Obsolete

TheSLX9000Eaton VFD motor drivesare compact, powerful and are based on the more robust SVX9000. The SVX9000 is a newer version of the obsolete SLX9000. It is designed to be the next generation of drives specifically engineered for moderncommercial and light industrial applications. Eaton MVX9000 series drives are obsolete and replaced by Eaton M-MAX drives. The M-Max drive is a compact micro drive with a broad power range. Typical applications for the M-Max include Food and Beverage, HVAC, Packaging, Pumping, Textile, OEM, and more.

The HVXEatonVFD motor drives are replaced by the Eaton H-MAX drives. The H-MAX series are designed to the HVAC market for fan, pump, and fluid control applications. The patented energy savings algorithm, high short-circuit current rating and intuitiveuser interface provide customers an energy efficient, safe, and easy to use solution for variable frequency drive needs.

For more information on Eaton VFD motor drives, visit the Eaton Website. For Eaton VFD motordrives repair and replacement quotes, Contact Precision Electric.

AC Tech VFD Drives

Lenze Americas is the manufacturer of AC Tech VFD drives. AC Tech VFD drives are high-performance products used to optimize new and existing machinery for production. Lenze Americas is one of the leading drive and automation specialists in the field of machine engineering. Rapidly changing times present manufacturers with new and varied challenges. To succeed in the future, manufacturers will need to handle more extensive tasks in even shorter time frames; Lenze Americas aims to reachthis ideal.

SMV Series:The SMV series of AC TechVFD drives offer sophisticated auto-tuning and fast dynamic torque response. The SMV is designed for motor applications where dynamic speed and torque control is demanded. The SMV series isan attractive solution for a broad range of applications including: food processing machinery, packaging machinery, material handling, conveying systems, HVAC systems, and more.The SMV series uses an Electronic Programming Module (EPM) for programming. Maintenance techs can easily use the EPM to reconfigure drive parameters or reset the drive. When a drive reset is necessary on the SMV, customers can reset to factory default or preset settings within seconds. When SMV drives must be replaced, the parameter configuration can besaved by the user by simply plugging in the pre-programmed EPM.

MC1000 Series:The MC1000 Series of AC TechVFD drives are the intelligent, versatile and cost-effective choice for industrial applications. From harsh environments to high torque loads, the MC1000 Series drives meet the toughest requirements with reliability, at a low cost. Customers can easily program the MC1000 Series and integrate extensive I/O with an array of programmable functions. The MC1000 is available in power ranges of 1/4 to 150 HP. The MC1000 offersEnhanced Torque System (ETS). ETS allows maximum starting and accelerating torque and tight speed regulation, even under fluctuating load conditions. MC1000 drives feature manual boost for high starting torque, and auto-boost for high torque acceleration at any speed. The MC1000 features power-up & auto restart modes, sleep mode with adjustable speed threshold and time.The MC1000 also offers anoptional Form C Relay and Dynamic Braking.

MC3000 Series
The MC3000 series of AC TechVFD drives are for process control demands with fast acceleration and response. The MC3000 is rated for constant torque applications but can easily be configured for variable torque applications. Most Process Control drives are designed for variable torque applications where the motor is driving a centrifugal fan or pump. As such, these drives are limited to 110% current for overload situations such as acceleration or responding to a feedback change. The MC3000 is a true Constant Torque drive rated for 180% of rated current for 30 seconds and 150% for one minute. This allows faster response to system changes and the ability to apply the MC3000 to non-centrifugal applications such as compressors, conveyors and other constant torque loads. The MC3000 is available in the same power ranges and voltages as the MC1000.

MCH Series:The MCH series of AC TechVFD drives are manufacturedfrom 1 to 250 HP. Lenze engineers designed theMCH series for the HVAC market and specific requirements of industrial installations. Lenze engineers designed the MCH to operate standard induction motors. MCH series offer simple programming and operation control for maintenance technicians.Technicians use included drive software toadjust the motor to maintain a preset pressure, flow, temperature or other variables using PID setpoint control.The MCH Series include UL and cUL approved motor protection for single motor applications. The MCH Series is used in systems seen in applications such as fans, pumps and cooling towers.

To learn more about AC TechVFD drives, visit the Lenze Website. For AC TechVFD Drives Repair or Replacement quotes, contact Precision Electric.

Lenze Americas VFD Drives

Lenze Americas VFD Drives

Lenze Americas VFD Drives are high-performance products used to optimize new and existing machinery for production. Lenze is one of the leading drive and automation specialists in the field of machine engineering. Rapidly changing times present manufacturers with new and varied challenges. To succeed in the future, manufacturers will need to handle more extensive tasks in even shorter time frames; Lenze Americas aims to reachthis ideal.

SMV Series:The SMV series of Lenze Americas VFD drives offer sophisticated auto-tuning and fast dynamic torque response. The SMV is designed for motor applications where dynamic speed and torque control is demanded. The SMV series isan attractive solution for a broad range of applications including: food processing machinery, packaging machinery, material handling, conveying systems, HVAC systems, and more.The SMV series uses an Electronic Programming Module (EPM) for programming. Maintenance techs can easily use the EPM to reconfigure drive parameters or reset the drive. When a drive reset is necessary on the SMV, customers can reset to factory default or preset settings within seconds. When SMV drives must be replaced, the parameter configuration can besaved by the user by simply plugging in the pre-programmed EPM.

MC1000 Series:The MC1000 Series of Lenze Americas VFD drives are the intelligent, versatile and cost-effective choice for industrial applications. From harsh environments to high torque loads, the M1000 Series drives meet the toughest requirements with reliability, at a low cost. Customers can easily program the MC Series and integrate extensive I/O with an array of programmable functions. The M1000 is available in power ranges of 1/4 to 150 HP. The MC1000 offersEnhanced Torque System (ETS). ETS allows maximum starting and accelerating torque and tight speed regulation, even under fluctuating load conditions. M1000 drives feature manual boost for high starting torque, and auto-boost for high torque acceleration at any speed. The M1000 features power-up & auto restart modes, sleep mode with adjustable speed threshold and time.The MC1000 also offers anoptional Form C Relay and Dynamic Braking.

M3000 Series
The M3000 series of Lenze America VFD drives are for process control demands with fast acceleration and response. The M3000 is rated for constant torque applications but can easily be configured for variable torque applications. Most Process Control drives are designed for variable torque applications where the motor is driving a centrifugal fan or pump. As such, these drives are limited to 110% current for overload situations such as acceleration or responding to a feedback change. The MC3000 is a true Constant Torque drive rated for 180% of rated current for 30 seconds and 150% for one minute. This allows faster response to system changes and the ability to apply the MC3000 to non-centrifugal applications such as compressors, conveyors and other constant torque loads. The M3000 is available in the same power ranges and voltages as the M1000.

MCH Series:The MCH series of Lenze Americas VFD drives are available from 1 to 250 HP. The MCH series were designed for the HVAC market and specific requirements of industrial and commercial installations. The MCH series are designed to operate standard induction motors. The MCH Series offers intuitive operator interface using simple programming and operational information. The MCH series allows drive software toadjust the motor speed to maintain a preset pressure, flow, temperature or other variables using PID setpoint control.The MCH Series include UL and cUL approved motor protection for single motor applications. The MCH Series isseen in applications such as fans, pumps and cooling towers.

To learn more about Lenze Americas VFD drives, visit the Lenze Website. For Lenze Americas VFD Drives Repair or Replacement quotes, contact Precision Electric.

Eaton VFD System Drives

Eaton VFD System Drives

Eaton VFD system drives can reduce energy consumption from 10 to 50 percent by reducingthe speed of an electric motor to its needed output speed. With reduced energy consumption, utility expenses are reduced and within a few months, the investment of Eaton VFD system drives canpay forthemselves.

Eaton VFD system drives allow for steady speed error, fast torque rise time, high immunity to resonance vibrations and high starting torque and current. Eaton VFD system drives canbe customized to fit multiple motor drive systems and high-speed applications. Eaton drives can be designed specifically for high-performance applications with highprocessing power, and the ability to use information from an encoder or resolver to provide precise motor feedback control. Eaton drives also offer a uniquemicroprocessor to provide high dynamic performance for applications where precise motor handling and reliability are required.

The DG1 general-purpose Eaton VFD system drives are part of the Eaton next-generation PowerXL series. The DG1 general-purpose drive is specifically engineered for todays moredemanding commercial and industrial applications. EatonDG1 drives offer an industry-leading energy efficiency algorithm, high short-circuit current ratingand robust design, safety and reliability. The LCX9000 drive is liquid-cooled to utilize potable water or a water-glycol mixture as a cooling medium. The LCX9000 drive has a compactsize and low heat transfer rates to allow the enclosure size to be greatly reduced, which is especially beneficial in UL Type 4X applications.

The PowerXL of Eaton VFD system drives is the next generation enclosed drive platform that packages Cutler Hammer’s PowerXL DG1 and SVX drive families in a fast and reliable designsolution. The CFX9000 clean power of Eaton drives use tuned passive filters to significantly reduce line harmonics at the drive input terminals. These drives are anexcellent choice for small and midsize applications where harmonics are a concern. The CPX9000 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.

The SVX9000 of Eaton VFD system drives offer sensorless vector control technology coupled with an adaptive motor model and sophisticated ASIC circuit features. This technologyallows for steady speed error, fast torque rise time, high immunity to resonance vibrations and high starting torque and current. The SVX9000 is suitable for multiple motor drivesystems and high-speed applications.

Obsolete Eaton VFD System Drives

The MVX9000 Micro of Eaton drives are sensorless vector variable frequency drives that are designed to provide adjustable speed control of three-phase motors. EatonSLX9000 are compact, powerful and are based on the more robust SVX9000. The SVX9000 is a newer version of the obsolete SLX9000. It is designed to be the next generation of drives specifically engineered for moderncommercial and light industrial applications.The MVX9000 series of Eaton VFD system 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 features board coating, unique mounting characteristics, simple programming, and 50C Rating to make the M-Max perfectly suited for machinery applications in manyindustries. Typical applications for the M-Max drives include Food and Beverage, HVAC, Packaging, Pumping, Textile, OEM, and more.

The HVX series of Cutler Hammer VFD drives are currently replaced by the Eaton H-MAX drives. The H-MAX series of HVAC VFDsystem 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 intuitiveuser interface provide customers an energy efficient, safe, and easy to use solution for variable frequency drive needs. The H-MAX drive supports the increasing demand for energysavings in buildings, systems and facilities. Built in capabilities and unique features provide a competitive solution that can add value to any end user.

For more information on Eaton VFD system drives, visit the Eaton Website. For Eaton VFD system drives repair and replacement quotes, Contact Precision Electric.

Hitachi VFD Drives

Hitachi VFD Drives

Hitachi VFD drives can be utilized for a wide range of industrial applications. Hitachi VFD drives are equipped with several advanced features, and deliver unprecedented
performance, reliability, and flexibility. Hitachi VFD drives 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 VFD drives are manufactured to provide an economical solution for industry’s most challenging applications.

NES1 Hitachi VFD Drives

NES1 Hitachi VFD drives are simple to use for speed control solutions are are available in the popular horsepower range of 1/2 hp through 5 hp. NES1 drives 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. NES1 drivesreduce installation space by attaching FFM, so ventilation is exhausted to the front. This allows the driveto save panel space and cost to the overall installation. NES1 drivesimproves capacitor life by attaching FFM to applicable model. The expected life of the aluminum electrolytic capacitors is approximately doubled, adding longevity to NES1 VFD drives.

NES1 drives are designed for many applications, such as:

Air conditioning systems
Fans and blowers
Clean rooms
Pumps
Water and waste water 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 VFD Drives

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

WJ200 Hitachi VFD Drives

WJ200 Hitachi VFD drives are designed for excellent performance and user friendliness. The WJ200 drives are available in power ranges from 100-200 VAC and single phaseinput 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 drives 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 drives. WJ200 Hitachi VFD drives are capable of driving permanent magnet as well as standard induction motors. WJ200 drives are seen in a wide range of industrial manufacturing applications.

To learn more about Hitachi VFD drives, please visit the Hitachi Website. For Hitachi VFD repair and VFD replacement quotes, contact Precision Electric.

Adjustable Frequency Drives

Adjustable frequency drives arealso known as adjustable speed drives, variable frequency drives, variable speed drives, VFDs andinverters.

Adjustable frequency drives are solid state electric motor control systems designed to control the speed of an electric motor. Adjustable frequency drives can reduce energy costsup to 50% by speed reduction on electric motorswhere the full speed of the electric motor is not needed. Drivefunctions allow an AC electric motor to only operate when neededwhich allows an electric motor to last longer.Technology has allowed adjustable frequency drives to reduce in cost and physical size and has improved performance through advances in semiconductor switching devices, simulation, control techniques, control hardware, and software.

Approximately one third of electrical energy in the world is supplied by electric motors in fixed-speed centrifugal pump, fan, and air compressor applications. These fixed-speed applications do not usually require full load speed of the electric motor theyre operating. By installing adjustable frequency drives to these applications, electric motor speeds are reduced and power costs can be reduced by 50% or more.Properly applied adjustable frequency drives withelectric motorswill significantly reduce energycosts for variable torque loads such as fans, blowers, and pumps.Blowers are often used with dampers to control air flow that operate either manually or automatically. When dampers are closed, 50% of the electric motor current will drop to approximately 60% of full load nameplate current. By utilizing adjustable frequency drivesin blower applications, the current draw of the motor will be reduced 30% for every 10% drop in speed. Electric motors controlled byadjustable frequency drives at 50% speed will draw approximately 20% of the electric motor full load current.

Adjustable frequency drives are also used on rotating equipment toreduce amperage spikes upon start up of large electric motors.Adjusting the acceleration and deceleration time of electric motors can extend the lifespan of an electric motor. Using a drive on an electric motor provides the ability to increase or decrease the frequent starting and stopping of an AC electric motor. Limiting the starting and stopping of a motor and controlling the ramp up and ramp down speed of amotor allows for decreased wear on an electric motor.Choosing the right drive for an application can helprotating equipment by providing less wear on the electric motors where applied.Adjustable frequency drivesare used in AC servo systems, air compressors, conveyor systems, lathes, mills, plastic extrusion, slitter lines, bottlers, packaging lines, pharmaceutical production, food processing, HVAC systems, waste water treatment systems, submersible pumps, fans, blowers, and many more electric motor applications.

To learn more about adjustable frequency drives or for drive repair and replacement quotes, contact Precision Electric, Inc.

Electrical VFD

An electrical VFD (variable frequency drive) is also known as a variable speed drive, adjustable speed drive, electronic motor controller, or an inverter. Every electrical VFD is unique with its own component characteristics; so every electrical VFD works dependently upon the components within its VFD. Most electrical VFD’s integrate a solid state electronics controller consisting of a bridge rectifier, a converter, and an inverter module.

A Voltage-source inverter drive is the most common type ofelectricalVFD. These drives convert AC line input to AC inverter output.There are some applications that use common DC bus and solar applications. These type of drives are configured as DC to AC drives. The bridge rectifier converter for volts per hertz drives is configured for 3 phase AC electric motors. Volts per hertz drives usea capacitor to smooth out the converter DC output ripple and provides a solid input to the inverter.

This filtered DC voltage is converted to AC voltage output using the inverter’s active switching elements. VSI drives provide higher power factor and lower harmonic distortion (noise) than phase controlled current source inverters and load commutated inverters drives. The drive controller can also be configured as a phase converter having single-phase converter input and three-phase inverter output.Controller advances have allowed increased voltage and current ratings and switching frequency of solid-state power devices over the past 50 years. VFDs were first introduced in 1983, and the insulated gate bipolar transistor has in the past 20 years become the standard for VFDs as an inverter switching device.

In variable-torque applications using Volts per Hertz (V/Hz) drive control, AC motor specifications require that the voltage magnitude of the inverter’s output to the motor be adjusted to match the required load torque in a corresponding V/Hz relationship. For 460 VAC, 60 Hertz electric motors, this V/Hz relationship would be 460/60 = 7.67 V/Hz. While acceptable in a wide range of different applications, V/Hz control is sub-optimal in high performance applications. High performance applications requiring low speed control, demanding high torque, dynamic speed regulation, positioning, and reversing load demands, there are open loop VFDs and closed loop VFDs would be desired over V/Hz VFDs.

Electrical VFD Applications

Many manufacturers will apply electrical VFDmodulesto rotating equipment to reduce amperage spikes upon start up of large electric motors. Choosing the right electrical VFD for an application will benefit rotating equipment by providing less wear on the electric motors where applied. Adjusting the acceleration and deceleration time of electric motors can extend the lifespan of an electric motor. Variable frequency drives provide the ability to control the frequency of starting and stopping of an AC electric motor. This ability allows an AC electric motor to only operate when needed, for the equipment its rotating, and electric motors have a longer lifespan if they are only running when they need to be.

Approximately one third of the worlds electrical energy is supplied by electric motors in fixed-speed centrifugal pump, fan, and air compressor applications. These fixed-speed applications hardly ever require the full load speed (RPM) of the electric motor in which theyre operating. By installing an electrical VFD to these applications, electric motor speeds are reduced, and power costs can be reduced by 50% or more. Technology has allowed cost and physical size reduction of variable frequency drives, and has improved performance through advances in semiconductor switching devices, simulation, control techniques, and control hardware and software.

Electrical VFD Power Savings

The majority of electrical VFDmodulesin the market today contain electronic circuitry that converts 60 Hertz Line power into direct current. The variable frequency drive converts this line power into a pulsed output voltage that duplicates varying alternating current to a desired frequency (speed). A properly applied electrical VFD when paired with the correct electric motor will significantly reduce operating costs for manufacturers. This is particularly true for variable torque loads such as fans, blowers, and pumps. Blowers are often used with dampers to control air flow; these dampers may operate either manually or automatically. When dampers are closed, 50% of the electric motor current will drop to approximately 60% of full load nameplate current. By utilizing variable frequency drives in blower applications, the current draw of the motor will be reduced 30% for every 10% drop in speed. The same electric motor operating from an AC variable frequency drive at 50% speed, will draw approximately 20% of the full load current.

Please watch our YouTube Video, to learn more about electrical VFD modules. An Electrical VFD Is Also Known As A Variable Speed Drive. For Electrical VFD Repair And Replacement Quotes, Contact Precision Electric, Inc.An electrical VFD (variable frequency drive) is also known as a variable speed drive For electrical VFD repair and replacement quotes, contact Precision Electric, Inc.

How a VFD Works

How AVFD Works:A variable frequency drive is also known as a VFD, variable speed drive, adjustable speed drive, electronic motor controller, or an inverter. How a VFD Works: Every VFD is unique with its own component characteristics so how each VFD works is dependent upon components within the VFD. Most VFDs integrate a solid state electronics controller consisting of a bridge rectifier, a converter, and an inverter module.

Voltage-source inverter drives are the most common type of VFDs. These drives convert AC line input to AC inverter output.There are some applications that use common DC bus and solar applications. These type of drives are configured as DC to AC drives. The bridge rectifier converter for volts per hertz drives is configured for 3 phase AC electric motors. Volts per hertz drives usea capacitor to smooth out the converter DC output ripple and provides a solid input to the inverter.

This filtered DC voltage is converted to AC voltage output using the inverter’s active switching elements. VSI drives provide higher power factor and lower harmonic distortion (noise) than phase controlled current source inverters and load commutated inverters drives. The drive controller can also be configured as a phase converter having single-phase converter input and three-phase inverter output.Controller advances have allowed increased voltage and current ratings and switching frequency of solid-state power devices over the past 50 years. VFDs were first introduced in 1983, and the insulated gate bipolar transistor has in the past 20 years become the standard for VFDs as an inverter switching device.

In variable-torque applications using Volts per Hertz (V/Hz) drive control, AC motor specifications require that the voltage magnitude of the inverter’s output to the motor be adjusted to match the required load torque in a corresponding V/Hz relationship. For 460 VAC, 60 Hertz electric motors, this V/Hz relationship would be 460/60 = 7.67 V/Hz. While acceptable in a wide range of different applications, V/Hz control is sub-optimal in high performance applications. High performance applications requiring low speed control, demanding high torque, dynamic speed regulation, positioning, and reversing load demands, there are open loop VFDs and closed loop VFDs would be desired over V/Hz VFDs.

How a VFDWorks – Manufacturing

Many manufacturers will apply variable frequency drivesto rotating equipment to reduce amperage spikes upon start up of large electric motors. Choosing the right VFD for an application will benefit rotating equipment by providing less wear on the electric motors where applied. Adjusting the acceleration and deceleration time of electric motors can extend the lifespan of an electric motor. Variable frequency drives provide the ability to control the frequency of starting and stopping of an AC electric motor. This ability allows an AC electric motor to only operate when needed for the equipment its rotating, and electric motors have a longer lifespan if they are only running when they need to be.

Approximately one third of the worlds electrical energy is supplied by electric motors in fixed-speed centrifugal pump, fan, and air compressor applications. These fixed-speed applications hardly ever require the full load speed (RPM) of the electric motor in which theyre operating. By installing a VFD to these applications, electric motor speeds are reduced, and power costs can be reduced by 50% or more. Technology has allowed cost and physical size reduction of variable frequency drives, and has improved performance through advances in semiconductor switching devices, simulation, control techniques, and control hardware and software.

How a VFDWorks – Power Savings

The majority of variable frequency drives in the market today contain electronic circuitry that converts 60 Hertz Line power into direct current. The variable frequency drive converts this line power into a pulsed output voltage that duplicates varying alternating current to a desired frequency (speed). A properly applied VFD when paired with the correct electric motor will significantly reduce operating costs for manufacturers. This is particularly true for variable torque loads such as fans, blowers, and pumps. Blowers are often used with dampers to control air flow; these dampers may operate either manually or automatically. When dampers are closed, 50% of the electric motor current will drop to approximately 60% of full load nameplate current. By utilizing variable frequency drives in blower applications, the current draw of the motor will be reduced 30% for every 10% drop in speed. The same electric motor operating from an AC variable frequency drive at 50% speed, will draw approximately 20% of the full load current.

Please watch our YouTube Videoto learn more about how a VFD works.For VFD repair and replacement quotes, contact Precision Electric, Inc.