ABB Variable Speed Drives

ABB Variable Speed Drives

ABBvariable speed drives are designed formotor-driven applications in any industry and all power ranges. ABB variable speed drivesare compatible with nearlyall processes, automation systems, users and business requirements. The innovation behind ABB variable speed drives is architecture that simplifies operation, optimizes energy efficiency and helps maximize process output. At the core of ABB variable speeddrives isDirect Torque Control (DTC).ABBs DTC is premiummotor control technology that enables highly accurate open and closed loop control. ABB drives aredesigned for industrial applications such as those found in pulp and paper, metals, mining, cement, power,chemical, oil and gas, water and wastewater, and food and beverage.

ABB Variable Speed Drives Product Overview

ABB variable speed drives for general purpose applications are designed forfans, pumps, mixers, and conveyors. ABB general purpose drives are also beneficial in the food and beverage industries, material handling, chemical, rubber and plastics, textile and printing and more. ABB general purpose drives are easy to select, install, configure and use. ABB variable speeddrives for general purpose applicationssave installation technicians time by standardizing most drive features to be built-in.

ABB micro drives include models ACS55 and ACS150. ABB micro drives are very easy to install and set up. ABB micro drives provide flexible mounting alternatives and straightforward configuration for many basic applications. Each drive is tested before it leaves the factory providing high machineavailability. ABB local customer and technical support is available no matter where ABB micro drives are delivered and installed.

ABB machinerydrives include models ACS355 and ACS850. ABB machinery drives are designed to meet the production and performance needs of machine builders, system integration specialists, panel builders and end users. ABB machinery drives can be flexibly programmed to meet the demands of different machine solutions. A wide range of features and options provide optimal solutions.

ABB ACS880 single drives are complete drives and can be installed without any additional cabinet or enclosure. ABB single drive modules configuration contains a rectifier, 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-built constructions. The key features of ABB single drivesare programmability and configurability during both ordering and commissioning, which makes adaptation to different applications easy.

ABBs ACS880 multi-drivesare mounted into a cabinet and the complete assembly isoffered and delivered as one package. Often, the multi-driveswill include additional accessories such as contactorsand earth fault protection units. ABBmulti-drives are built from ABB industrial drive modules connected to a common DC bus. This enables a singlepower entry and common braking resources for several drives.This construction simplifies the total installation, and results in many benefits, including: savings in cabling, reducedinstallation and maintenance costs, reduced line currents and more.ABB multi-drives are built-to-order products.

To learn more about ABB variable speed drives, visit the ABB Website. For ABB variable speeddrives repair and replacement quotes, contact Precision Electric.

Lenze Americas Announces

Lenze Americas Announces Product Changeover

Lenze Americas(formerly AC Tech, AC Technologies) announced today that the AC Tech Sub-Micro series (SC Series) of drives and Lenze global drives series (8200 9200, ECS) were launched over 15 years ago, and since then have developed and enhanced their functionality. With advances in technology, Lenze has decided to cease production of the AC Tech SCF, SCM, and SCL series VFD Drives.In going forward, Lenze Americas plans to focus their attention to new and globally-compliant products. Lenze Americas will cease production of all AC Tech SCM, SCM, and SCL series VFD drives by 2019.

Looking toward the future, Lenze Americas will manufacture and provide new solutions for customers globally. Lenze Americas and customers of Precision Electric will continue to support these products during the changeover to new products. Together, Lenze Americas and Precision Electric can discuss how to meet the production needs of your company; while ensuring the supply of replacement parts and/or the possibility of VFD repairs.

Important phase-out process dates:

  • * Joint product phase-out planning,4/1/2017
  • * Last opportunity for Sub-micro and global drive series orders,4/30/2017
  • * Final delivery of last orders,4/30/2019
  • * Supply of replacement parts and repairs until at least,4/30/2021

*Please note that orders cannot be cancelled.

To order exact replacement SCF, SCM, or SCL products before April 2017, visit the Precision Electric website. To replace SCF, SCM, or SCL series products with updatedproducts, visit the Precision Electric website. For all VFDrepair and replacement inquires, contact Precision Electric.

AC Motor Repair

AC Motor Repair

The first step in AC motor repair is identifying that there is a problem. If an electric motor smells like it’s burning, is vibrating and running loudly, or if the motor is not operating at its peak performance, something is probably wrong. When these circumstances present themselves, promptly shut the power off to the motor and machine to prevent further motor and machine damage. Once the power is off, it’s best to contact a trained professional with experience in AC motor repair.

AC motor repair cost always depends upon the extent of motor damage and availability of motor replacement parts. Repaircosts can be decreased by simple awareness that something is wrong. Contacting a motor professional is preferred to prevent injury. Motor professionals can also reduce unnecessary troubleshooting and downtime in the following ways: If the motor repair cost exceeds the replacement cost, an electric motor replacement motor can be shipped out right away. If the application is a DC electric motor, an electric motor professional can determine if replacing the DC equipment with AC equipment is a more economical choice. Often times a DC motor can be replaced with an AC motor, paired with an AC VFD. An AC motor paired with AC VFD has the ability to increase production,
decrease energy costs, reduce future repair costs, and offer other benefits.

AC motor repair can be decreased with preventative maintenance. Preventative maintenance tasks vary depending on the abilities and experience each motor shop offers. AC motor repair should only be performed by trained electrical technicians who have electric motorexperience. A lot of companies offering motor repair and preventative maintenance do not even perform these tasks; these companies outsource their jobs to a third party source, such as Precision Electric. To decrease costand increase turnaround time, ensure that whoever is offering the repair services, is actually performing the repair services.

For more information on AC motor repair or for AC motor repair and replacement quotes, 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.