August 17, 1998 Design News
Senior Regional Technical Editor
Charles J. Murray reviews
noteworthy drive products
Motor control programming language
Baldor Electric Co. now offers a motion control programming
language for use with the company's vector drive products,
servo products, and new linear motion products. Called
"MINT," the new language will program the
company's entire line of single- to 256-axis motion
products. MINT motion controllers can position 500-hp
vector drives, mini brushless servo drives, ac induction
servo drives, dual-axis linear stepper motors, and a
variety of other products.
Product Code 4366
Microsize drive for 460V ac
MagneTek's microsize GPD 205 adjustable frequency drives
are now available in 460V ac models. The new models
come in four incremental ratings from 0.5 to 3 hp. Although
only a fraction of the size of conventional PWM drives,
the GPD 205 is said to be useful for sophisticated equipment
control in applications that include fans, pumps, mixers,
agitators, compressors, conveyors, commercial laundry,
and material-handling installations. The drive's 16-bit
microprocessor provides the flexibility, features, and
performance for a wide range of operational requirements.
It installs and programs easily, has the versatility
to adapt to simple or complex applications, and is UL-listed,
CSA-approved, and CE-marked.
MagneTek Drives & Systems.
Product Code 4361
Small vector control drive
Siemens' Micro Master Vector and Midi Master Vector
Variable Frequency Drives (VFDs) are reportedly the
first to integrate sensorless vector control into the
small dimensions of a standard frequency controller.
The two units are smaller in size and offer more standard
features than their VFD predecessors. They are also
compatible with standard induction motors ranging between
1/6 to 100 hp. Introduced in 1993, the Micro/Midi Master
drives were among the first VFDs to offer breakthrough
technologies, such as flux current control for automatic
current load adaption. In their latest iteration, the
controllers' sensorless vector inverter capability derives
from a new ASIC that quickly calculates rotor speed
and position. This enables the rotor and stator current
to be controlled for optimized performance.
Siemens Energy & Automation Inc.
Product Code 4362
Increased horsepower capacity
Reliance Electric's enhanced FlexPak 3000 digital dc
drive offers increased capacity to 600 hp. Operating
on three-phase ac input power, the FlexPak 3000 drive
operates with regenerative and non-regenerative applications.
Other new enhancements to the unit include a DeviceNet
communications card and an I/O expansion card. The DeviceNet
card allows a FlexPak 3000 to communicate over the open
protocol DeviceNet network. The card mounts inside the
FlexPak 3000 and includes terminals for network connections.
It has the ability to modify parameters, plus operate
and monitor the FlexPak 3000.
Rockwell Automation, Reliance Electric.
Product Code 4363
World's fastest microdrive
ABB Drive Operations has unveiled the "world's
fastest microdrive," the ACS/140. The unit covers
from 0.5 to 3 hp, as well as 230 and 460V ac, in single-
and three-phase configurations. It can respond to input
signal changes in as little as 9 msecs. Measuring just
a fraction of the size of conventional PWM ac drives,
the new ACS/140 MicroDrive includes firmware and software
for commercial and industrial applications. Applications
include: fans, pumps, mixers, agitators, compressors,
and conveyors. It also features a standard PID controller
for simultaneous control of an industrial process or
ABB Industrial Systems Inc.
Product Code 4364
Digital drive offers servo accuracy, high torque
Indramat's DKR05 Intelligent ac Vector Drive provides
the dynamic performance of a servo drive while reportedly
delivering 30 times the torque. It meets the high performance
needs of newspaper printing presses, converting machines,
high-power machine tools, and high-horsepower engine
and transmission test stands. The drive comes in models
offering 150, 200, and 300 hp, at motor speeds to 2,700
rpm, and connects directly to 380/460V ac power lines,
with regeneration back to the three-phase powerline.
DKR05 uses the fiber-optic digital SERCOS interface
to provide high-speed, noise-immune, real time between
the control and digital drive, which further reduces
Indramat Div., Mannesmann Rexroth Corp.
Product Code 4365
To speak with a company representative call
1-800-828-6344 x011 and enter the product code,