ABB VSD

ABB VSD drives are designed for motor-driven applications in any industry and all power ranges. ABB VSD drives are compatible with virtually all processes, automation systems, usersand business requirements. The innovation behind ABB VSD drives is architecture that simplifies operation, optimizes energy efficiency and helps maximize process output. ABB VSDdrives for general purpose applications are designed to control a wide range of applications such as fans, pumps, mixers, conveyors and process control in industries including foodand beverage, material handling, chemical, rubber and plastics, and textile and printing. ABB general purpose VSD drives are easy to select, install, configure and use. ABB VSDdrives for general purpose applications save users time by using standard built-in features.

ABB VSD Overview

The ACS55 and ACS150series of ABB VSD micro drives are easy to install and set up. ABB micro drives provide flexible mounting alternatives and straightforward configuration for many basicapplications. Each micro drive is tested before it leaves the factory providing high machine availability. ABB local customer and technical support is available no matter where ABBmicro drives are delivered and installed.

The ACS355 and ACS850series of ABB VSD machinery drives are designed to meet the production and performance needs of machine builders, system integration specialists, panel builders and endusers in a broad range of applications. ABB VSD machinery drives can be flexibly programmed to meet the demands of different machine solutions. A wide range of features and optionsprovide optimal solutions.

The ACS880series ofindustrial VSD drives are designed for fast, cost-effective installations and integration into control cabinets. ABB ACS800 VSD drives enable OEMs, system integrators and panel buildersto build their own drive while maximizing benefits from ABB drive technology such as DTC motor control, adaptive programming and a wide range of built-in and external options. ABBprovides detailed cabinet installation instructions and other support material to help customers build their own solutions.ACS880 VSD multi-drives are built from ABB industrial drive modules connected to a common DC bus. This enables a single power entry and common braking resources for several drives.This construction simplifies the total installation and results in benefits including savings in cabling, reduced installation and maintenance costs, reduced line currents andmore.

The ACS880single drive moduleseries of ABB VSD drives are complete alternating current drives and can be installed without any additional cabinet or enclosure. ABB single drive modules configuration contains arectifier, optional EMC filter, reactor, DC link and an inverter in one single AC drive unit. ABB single drives are available as wall-mounted, free-standing and cabinet-builtconstructions. The key features of ABB single drives are programmability and configurability during both ordering and commissioning, which makes adaptation to different applicationseasy. ABBs ACS880 cabinet-built single drives are drives that are mounted into a cabinet and the complete assembly is offered and delivered as one package. Often the cabinet willinclude additional accessories such as contactors and earth fault protection units. ABB VSD drives for control cabinets are typically built-to-order products.

ABB VSD drives cover a wide power and voltage range, including voltages up to 690 Volt and powers up to 5600 kW. At the core of ABB VSD drives is the Direct Torque Control (DTC),ABBs DTC is premium motor control technology that enables highly accurate open and closed loop control. ABB VFD drives are designed for industrial applications such as those foundin pulp and paper, metals, mining, cement, power, chemical, oil and gas, water and wastewater, and food and beverage.

To learn more about ABB VSD drives, visit the ABB Website. For ABB VSD drives repair and 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.