With the Eaton SC9000VFD double-bus,a second 1200 amp VFD busis located above the mainbus, adding only 8 inches ofadditional height to the system.The Ampgard SC 9000 doublebusenables close-coupling ofan optional 24-inch-wide driveoutput contactor and multiplemotor bypass and motor selectcontactors under a commonbus alignment.Ampgard SC9000 integratedControl Gear synchronoustransfer control design givesEatons customers the benefit ofa compact and reliable system.

SC9000 Features

The Eaton SC9000 VFD double-bus is integrated witha 24-inch-wide drive outputcontactor (optional) and36-inch-wide motor bypassand motor select contactorsstructure that can be equippedwith a 400 amp or 800 amp contactor,as required.A 400 amp motor bypass contactorand a 400 amp motor selectcontactor can be double-stackedin a single, 36-inch-wide cabinetfor motor systems up to3000 horsepower.

Eaton SC9000 VFD Ampgard double-bus design for synchronous transfercontrol was first to market. Do not be misled by cable copy cats800 amp motor bypass and motorselect contactor assemblies, whichrequire two 36-inch-widestructures for a total widthof 72 inches per motor.

Synchronous transfer systemshelp power generating facilitiesmaximize the capital efficiencyof their systems by controllingmultiple motors with oneadjustable frequency drive.Most manufacturers synchronoustransfer control systemhave multiple drive output andmotor select contactors thatare interconnected typically viacables to allow the VFD tomanage multiple motors.

With the Eaton SC9000 VFD Ampgard and the Ampgard IntegratedControl Gear VFD double-busdesign, the drive output andmotor select contactors areclose-coupled under a commonpower bus (no cables) giving customers the compact designand superior performance theyexpect from the Eaton brand.

The basic principle of synchronous transfer controlis to adjust the Eaton SC9000 VFD output voltage, frequencyand phase to match the utility.By matching these parameters, the drive systemcan transfer a motor from the SC9000 output tothe utility in a bump-less manner.The Eaton SC9000 VFD and PLC systems are programmed tostart or stop a single motor, as well as sync up ordown to other motors as needed.Upon system startup, the SC 9000 and VFD busare energized.The PLC closes the drive output contactor and thedesignated motor select contactor and starts the SC9000, allowing power to be directed to the desiredmotor (M1 above) for operation.The designated motor can now be operated atadjustable speed as needed.When an additional motor is required, the PLC willsend the sync up command to the SC9000.

The Eaton SC9000 VFD adjusts its output to match the linevoltage, frequency and phase angle. Once the driveoutput and line are synchronized, the system willtransfer the motor from the drive output to the utilityby opening the motor select contactor (M1) andclosing the motor bypass contactor (B1).Once synchronization is locked, the adjacent motorselect contactor (M2) is closed, and the Eaton SC9000 VFD can now operate theadditional motor at variablespeed as needed.

To learn more about the Eaton SC9000 VFD, visit the Eaton Website.

Information Source:

http://www.eaton.com/Eaton/ProductsServices/Electrical/ProductsandServices/ElectricalDistribution/MediumVoltageDrives/index.htm

The Yaskawa P7 VFD is for industrial applications such as centrifugal fans andpumps. The Yaskawa P7 VFD is provided in NormalDuty ratings with 110% overload capability. V/f control mode, networkcommunication options, and an array of input/output options areavailable.The P7 VFD is factory-programmed and ready to run. For operationalsimplicity and clarity, the LCD operator display has 5 lines x 16characters. It can be set to any of 6 languages. The keypad is intuitiveand includes parameter copying to move a chosen set of parameters from one drive to another.The Yaskawa P7 VFD comes in power ratings of 208/240 and 480 volt ratings with built-in buschoke above 30 HP, common bus capability, and other energy savingsoptions.

The Yaskawa P7 VFD supports the industrys open architecture, open connectivitydemands with network communications choices such as DeviceNet, Profibus-DP, and others. Drive coordination withother equipment is simplified with inputs and outputs for 4 to 20 mA, 0-10V, and an assortment of programmable contacts.With an optional phase-shifting input transformer, the P7 dual-diodebridge can be operated in 12-pulse rectification mode, reducing inputcurrent harmonic distortion factor by over 90%. With lower EMI/RFIemission and lower total harmonic distortion contribution, the P7 meetsor exceeds the generally accepted power quality standards. Inherentmotor protection features resulting from low noise/low carriertechnology provides for longer lead lengths without additional motorprotection devices.The optional P7/Bypass package is a 3-contactor style bypass, allowingmotor operation from the drive or across the line. This facilitates drivemaintenance while the motor continues to operate.The P7 has been designed to provide the features and optionscommonly needed for fan and pump applications.

P7 18-Pulse Drive 25-500 Horsepower

The Yaskawa P7 18-Pulse VFD is a variable torque rated AC drive, designedspecifically for applications that require low total harmonic distortion at the drive input terminals and to meet the requirements ofIEEE-519 (special applications) at the point of common coupling.The YaskawaP7 VFD includes numerous built-in features such as NetworkCommunications, PI, and energy-savings functions.The P7 18 Pulse Drive Design limits the total harmonic distortioni at the Drive InputTerminals to less than 8% Current Distortion and less than 3% VoltageDistortion.The Yaskawa P7 VFD meets or exceeds generally acceptedpower quality standards with lower EMI/RFI emission and lower total harmonicdistortion contribution. Inherent motor protection features resultingfrom low noise/low carrier technology provide for longer lead lengthswithout additional motor protection devices.

An enhanced sleep function provides significant energy savings byminimizing operating hours. Under-torque detection, alerts the operatorto conditions such as loss of load or broken belts.Energy savings control is an automatic output voltage adjustment inresponse to actual motor load. Real-time energy savings is based onmotor algorithms. Motor efficiency is increased by several percent.Built-in kW-hour and kW display eliminates the need for external signalconditioner for energy monitoring.The standard enclosure is NEMA 1. NEMA 12 and 3R are optional.The optional Bypass package is 3-contactor style bypass, allowingmotor operation from the drive or across the line. This facilitates drivemaintenance while the motor continues to operate. The Yaskawa P7 18-Pulse VFD with Bypass has been designed for flexibility in providing the featuresand options commonly demanded by facility designers.

To learn more about the Yaskawa P7 VFD, or, to download technical data, visit the Yaskawa Website.

Information Source:http://www.yaskawa.com/site/Products.nsf/productGroup/ACDrives.html

The Yaskawa G7 drive is the ultimate performancesolution with increased speed and torque response to provide servo-likeperformance from an induction motor. The Yaskawa G7 drive has theworlds first 480V 3-level inverter architecture that eliminates orminimizes the installation problems associated with IGBT switching andprotects the entire motor-drive system.The 3-levelcontrol eliminates peripheral components typically required to solve installationproblems such as long motor cable leads, motor bearing life, audible noise, andcommon mode noise. The Yaskawa G7 drive performance makes it the ideal drive for high performancespeed, torque, or position control applications.The Yaskawa G7 drive is the total solution for the unconventional, extreme performanceapplications. With high-end response for speed and torque loops, the G7provides servo-like performance for superior motor control.

The Yaskawa G7 drive allows motor operation at very long cablelengths, meeting NEMA MG1 Part 31, with peak voltage being 30% lessthan conventional drives. With motor bearing current being typically50% less than standard drives, the G7 provides four times the motorbearing life.The Yaskawa G7 drive has three auto tuning methods to optimize motor control,including the new static auto tuning which does not require loaddecoupling nor motor rotation.The LCD operator displays 5 lines x 16 characters, in any of 7languages. The Yaskawa G7 keypad is intuitive and includes memory for parametersettings, making it easy to transfer settings from one drive to another.The YaskawaG7 / Configured packageprovides a G7 drive in either a NEMA 12, UL Type 1 (IP22 or IP54 depending on the exact rating) enclosure, with space for factory-mounted and wired options, such as reactors, filters, circuit breakers, fuses, network communications and I/O cards.

Programming and Software

The Yaskawa G7 drive uses Drive Wizard software forthe PC and is available at no charge for upload, download, archiving,trending, and graphing.The Yaskawa G7 drive has a large programming feature set to handlesophisticated industrial applications. If the standard feature set does notmeet your specific requirement, the G7 can be programmed usingDriveWorksEZ.

This is a PC-based, object-oriented, graphical iconprogramming tool that is friendly to the user. The drive firmware canalso be modified by custom or pre-written application-specific modulessuch as Motion Control or Electronic Lineshaft.The G7 drive supports the industry’s preference for open networkarchitecture and connectivity with network choices such as EtherNet/IP,Modbus TCP/IP, Profibus-DP, DeviceNet, and others.The Yaskawa G7 is not intended for the simple, routine AC drive application, it isfor the challenges. The G7 drive offers the ultimate performance, thebest system protection, and the most flexible configurations of any driveavailable. To learn more about the Yaskawa G7 drive or to download technical documentation for the G7, visit the Yaskawa Website.

Information Source:

http://www.yaskawa.com/site/Products.nsf/products/Industrial%20AC%20Drives~G7.html

ABB low voltage alternating current driveproducts range from 0.18 to 5600 kW whichis the widest selection available from any other drive manufacturer. ABB low voltage drives establish the global benchmark signifying reliability, simplicity, exibility and ingenuity throughout the entire lifecycle of the drive.

Application Diversity

ABB general purpose drives are designed to control a wide range of applications such as fans, pumps, mixers, conveyors as well as process control in industries including food and beverage, material handling, chemical, rubber and plastics, textile and printing. ABB general purpose drives are easy to select, install, configure and use. ABB general purpose drives save users 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 machinery drives 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 in a broad range of applications. 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 ACS800 series drives are designed for fast, cost-effective installation and integration into a customers owncabinet. Modules enable OEMs, system integrators and panel builders to build their own drive while maximizing benefits fromABB drives technology such as DTC motor control, adaptive programming and a wide range of built-in and external options. ABB provides detailed cabinet installation instructions and other support material to help customers buildtheir own solutions.

ABB ACS800 single drives are complete alternating current 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 ACS800 cabinet-built single drives are drives that aremounted into a cabinet and the complete assembly isoffered and delivered as one package. Often the cabinetwill include additional accessories such as contactorsand earth fault protection units. Cabinet drives aretypically made-to-order products.

ABBs ACS800 multi-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 low voltage drives cover a wide power and voltage range, including voltages up to 690 Voltand powers up to 5600 kW. At the core of the drives is the direct torque control (DTC), ABBs premiummotor control technology that enables highly accurate open and closed loop control. The 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.

A human-machine interface (known as an HMI) is an industrial electronics product that’s used to interact the operation and control between humans and machines. An HMI provides feedback from the industrial machine to the end user which helps the user make changes so that the machine is more effective in production. An HMI can also provide a way to control, manage, monitor and visually operation processes during production.HMI’s are used in all sorts of production applications across the world; but are extremely popular in heavy machinery, robotics, process controls, ergonomics, PLC and other related applications.

An industrial HMI systems processing power determines it’s 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’s range from simple displays to high resolution LCD panels and can be mounted on the machine, portable handheld devices, and also in centralized control cabinets. HMI’s are used in machine and process control to connect sensors, actuators and machines on the plant oor to I/O control and PLC systems. An operator control cabinet allows an HMI operator to interact with the machine in a visual way. With controls and read-outs graphically displayed on the screen, the HMI user can use either external buttons or atouch screen to control the industrial machine it’s connected to.

sources:

http://www.pcmag.com/encyclopedia/term/44300/hmi

https://en.wikipedia.org/wiki/User_interface