AC Drives of L&T Yaskawa
The Yaskawa A1000 inverter offers a motor drive renowned for superb performance and excellent flexibility. Features
* Easy set-up (plug and play)
* Functional safety features
* Enhanced efficiency
* Reduced audible noise
* Improved design & functions
* Permanent magnet motor control
* Unrivalled reliability Easy Start-Up
The A1000 automatically selects the most suitable optimizations setting parameters required for major applications making it easy to set up to achieve optimal performance. To save time in setting up the drive features a parameter copy function & the terminal block is able to save all parameter settings data. Features include; application parameter presets, screwless removable control terminal, Engineering tool Drive Wizard Plus for parameter management and an application SW library. A USB Copy Unit is also available making it even simpler to back up settings or to instantly program a drive. Safety Features Momentary power loss is not a problem for the A1000 as it features sensorless control with all control modes for both induction and synchronous motors. In compliance with EN ISO 13849-1. PLC, IEC/EN61508 SIL2 Safe Torque off (STO) is provided. Efficiency Highly efficient induction motor operation is possible via the drive's energy-saving control. Unparalleled energy saving is possible by using the A1000 energy-saving control capabilities with synchronous motors. A variety of protective designs are also available. Environment The YASKAWA Swing PWM function, featured in the A1000, suppresses audible high pitch motor noise which leads to a much more peaceful environment.
Yaskawa V1000 is a world-class compact current vector drive that defines a new world standard. Demands for efficient production and better maintainability are on the rise, spurred by global competition. Yaskawa pays off the promise of being in control with products that make businesses move
The new J1000 drives are designed to be used with asynchronous motors rated from 0.1-5.5kW. The RoHS-compliant drives offer V/f control and can handle a 120% overload for 60s (normal duty), or 150% for 60s (heavy duty). They can deliver 100% torque at 1.5Hz and 150% at 3Hz.
The drives incorporate transistors for dynamic braking, allowing them to be used for simple hoisting applications. A variable carrier frequency function reduces noise levels, while stall prevention and speed search functions prevent unnecessary tripping. The drives are available in 200/400V three-phase and 200V single-phase versions, while 100V single-phase versions are planned.
Specifications for G7 Drive
This amazing AC drive is the ultimate performance solution with increased speed and torque response to provide servo-like performance from an induction motor. In addition, the G7 drive includes the world’s first Inverter architecture that eliminates or minimizes the installation problems associated with IGBT switching on 480 volt systems and protects the entire motor-drive system.
G7 drive performance makes it the ideal drive for high performance speed, torque, or position control applications. Several control modes are provided. In open loop vector mode, the latest flux observer algorithms extend speed range and provide maximum starting torque. In closed loop vector mode, 0.01% speed regulation and 1000:1 control range can be achieved. Zero-servo capability provides position control at zero speed.
The G7 drive has the world’s first 480V 3-Level Inverter architecture for total system protection. This patented 3-Level architecture can eliminate peripheral components typically required to solve installation problems sometimes encountered on 480 volt systems. The G7 allows motor operation at very long cable lengths, meeting NEMA MG1 Part 31, with peak voltage being 30% less than conventional. With motor bearing current being typically 50% less than standard inverters, the G7 provides four times the motor bearing life. Audible motor noise on the 480 volt G7 drive is 5-10 dB (20%) less than the prior generation drive, even when operating at half the carrier frequency. Common mode current is half that of conventional drives. The G7 power section includes built-in bus choke (most ratings), 12-pulse input capability (most ratings), common DC bus capability, and regeneration options.
The G7 drive has three autotuning methods to optimize motor control, including the new static autotuning which does not require load decoupling nor motor rotation. The LCD operator displays 5 lines x 16 characters, in any of 7 languages. The keypad is intuitive and includes memory for parameter settings, making it easy to transfer settings from one drive to another. To further aid in parameter management, DriveWizard™ software for the PC is available at no charge, for upload, download, archiving, trending, and graphing.
The G7 drive has a large programming feature set to handle sophisticated industrial applications. If the standard feature set does not meet your specific requirement, the G7 can be programmed using DriveWorksEZ™. This is a PC-based, object-oriented, graphical icon programming tool that is friendly to the user. The drive firmware can also be modified by custom or prewritten application-specific modules such as Motion Control or Electronic Lineshaft.
The G7 drive supports the industry’s preference for open network architecture and connectivity with network choices such as DeviceNet, Profibus-DP, Ethernet, and others.