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Drives, Drive Components
August 2008
Variable Frequency Drive
Lenze-AC Tech (Uxbridge, MA) has introduced the enhanced SMVector NEMA1 variable frequency drive, in power ratings to 30 hp. The drive’s increased capabilities include an additional programmable digital input, terminals for RS-485 communications, and an enhanced keypad.
The drive incorporates four modes of operation – V/Hz, Enhanced V/Hz, Vector Speed, and Torque – plus high starting torque, auto-tuning, advanced low-speed control and dynamic speed regulation. It accepts input voltages from single-phase 120 to three-phase 600VAC. An electronic programming module allows a customer to program multiple drives in seconds.
For free info Visit http://info.hotims.com/15136-302
June 2008
Brushless DC Motor Drive
The TA2230 constant velocity drive from Trust Automation (San Diego, CA) is designed to run a brushless motor at a constant velocity using the motor’s ll sensors for the velocity feedback. Using an RS232 interface, the drive can be programmed at start-up to ramp up at a preset rate and maintain a constant velocity, regardless of load changes. With the optional cooling fans, the brushless motor drive measures 9.3 in. × 3.5 in. × 5.7 in.
Motor output from the drive with an AC supply of 100 to 220 VAC @ 50/60 Hz, 25-A peak current. The DC voltage is 0-330 VDC at 45 Amp peak, 20 Amp RMS continuous. The drive’s speed can be set through an external potentiometer, an on-board potentiometer, or via software commands.
Other features include soft-start control, integral AC line filtering, and an optically isolated user interface. Software-configurable parameters include enable input level, fault output level, coast input level, target velocity, Hall active level, and current limit.
For Free Info Visit http://info.hotims.com/15132-305
Linear Drive
An inexpensive optional hardware attachment for linear drives from Amacoil (Astron, PA) allows mechanically controlled ramp down of linear speed. The slowdown option requires no electronics or programming and may also be configured for dwell if the drive unit is required to stop.
The slowdown feature is also useful in traverse winding drive assemblies for winding flat materials because it slightly increases the wrap time at the spool flanges. Operating completely independent of the drive motor, the mechanical ramp down feature assures a gradual reduction in linear speed before reversal, which dissipates the forward momentum of the load being moved to prevent shaking or jarring during reversal. OEM designers will find the slowdown option does not complicate design.
The only modifications to the basic Uhing linear drive assembly are the addition of the slowdown arm to the reversal mechanism and an extra end stop bolt on the assembly supports. Furthermore, production and maintenance personnel need not learn any special procedures or skills. Applications include moving overhung or cantilevered payloads in linear motion systems where it is desirable to minimize whipping or jolting of the payload.
For Free Info Visit http://info.hotims.com/15132-314
Stepper Motor Drive
The StepNet AC drive from Copley Controls (Canton, MA) runs directly on 115/240 Vac at 7 A, eliminating the need for a separate DC supply. It offers servo mode operation and has built-in modes for indexing, trajectory tracking, camming, and electronic gearing. The drive can operate alone or as part of a distributed control network.
The drive has command, encoder, and communications interfaces that allow users to apply the single model to a wide range of standalone and networked architectures and applications. Interfaces include CAN/open, DeviceNet, ASC11/Discrete I/O, stepper commands, +/-10 V position/velocity torque command, and PWM velocity/torque command.
Libraries of motion control software and software COM objects are available to ease system development. Measuring 146 × 119 × 55 mm, the drive can be mounted flat or sideways.
For Free Info Visit http://info.hotims.com/15132-316
Variable Frequency Drive
The VLT(R) series variable frequency drive from Danfoss Drives (Loves Park, IL) comes in ratings up to 1350 HP at voltages of 460 and 690 VAC. F1 frame models deliver up to 1050 HP in an 86.8 in. × 55.1 in. × 23.9-in. footprint, while F2 frame models deliver up to 1350 HP in an 86.8 in. × 71.0 in. × 23.9- in. footprint.
These drives facilitate ease-of-use by sharing a common platform with smaller Danfoss drives. Proven power electronics promise reliable operation, and components are accessible from the front of the unit for quick, easy serviceability and maintenance. A Rittal TS8 enclosure system in IP21 (NEMA 1) or IP54 (NEMA 12) enables easy system expansion, while a Class A1 RFI filter (optional class A2) reduces EMI/RFI without the need for external filters.
For Free Info Visit http://info.hotims.com/15132-315
April 2008
Bevel Gear Drives
The TDB254WR wide-wheel bevel gear drive from ABM Drives (Germany) incorporates special gearing to produce the industry’s tightest swing radius – just 7in. – for wide wheel capability with zero-offset drive. Designed for pallet trucks, the gear drive is available in gear ratios from 14:1 to 39:1.
The drive’s modular design enables OEMs to custom specify motor, steering, gear ratios, tiller mounting set-up and end shields – all from a single source, fully assembled and integrated. OEMs can choose between a range of high-efficiency, UL-approved AC induction motors up to 5.2hp for battery voltages of 24, 36, 48, 72, and 80V, various motor sizes and lengths, and a 10 in. diameter shroud or 12 in. optional wheel. Steering choices include direct drive tiller, chain-and-sprocket, or integrated by-wire, plus holding brake options.
For Free Info Visit http://info.hotims.com/15128-301
February 2008
 Stepper Drive
Applied Motion Products’ (Watsonville, CA) ST10-Si stepper drive delivers 24 to 80 Vdc with peak outputs to 10 A. The drive is protected against overvoltage, undervoltage, overtemperatures, and external output shorts. Upon start-up, the drive measures motor parameters including resistance and inductance, and uses this information to optimize system performance.
The drive is programmable for standalone operation with the Si Programmer Windows-based software. A graphical point-and-click format combines motion, I/O, and operator interface functionality for simple machine sequencing. Other features include microstep emulation, torque ripple smoothing, and dynamic smoothing. Option boards are available for encoder feedback.
For Free Info Visit http://info.hotims.com/15124-305
December 2006
Brushless Motor Drive
Intelligent Motion Systems (IMS, Marlborough, CT) released the MDrivePlus motion control system for brushless motor applications. The unit features 20 microstep resolutions to 51,200 (full step, degrees, metric, and arc minutes), a motion control system-on-a-chip, electronic gearing, 6,385 bytes of program storage, and analog input to 10 VDC. Drive voltage ranges include +12 to +75 VDC and 120 and 240 VAC. The housing is chemical resistant and the unit has a cast aluminum heat sink. Outputs are configured for sourcing or sinking, and the unit features an auxiliary logic power input.
For Free Info Visit http://info.hotims.com/10958-320
Motor Drive Module 
International Rectifier (El Segundo, CA) released the IRMCT3UF1 fully integrated high-reliability hybrid motor control modules enabling digital, sensor- free vector control of permanent magnet motors. The module combines digital control, analog interface, and power stage. Speed and torque control are provided with commutation or position sensors. Sinusoidal current control enables current startup sequencing and low loss space vector pulse-width modulation. EMI is suppressed. The unit’s algorithm accommodates motor parameter variation for compatibility with brushless DC and permanent magnet AC motors.
For Free Info Visit http://info.hotims.com/10958-336
October 2006
Servo Drive System
YET US (Manchester, NH) introduced the XtraDrive® servo system, configured for compatibility with all brushless servo motor technologies. The unit features patented non-linear control technology (NCT) for performance and stability; NCT technology allows for zero settling time, and augments non-linear gain control and system productivity. The control structure accommodates changing load requirements, and features an integrated amplifier with an embedded 1.5 axis controller. The system operates as a standalone unit or can be driven by an external PLC or multi-axis controller for step and directional input, analog velocity, or torque control and networking capability. Options include extended I/O, Devicenet, SERCOS, MACRO, and Profibus.
For Free Info Visit http://info.hotims.com/10952-329
August 2006
Motor
Driver
Allegro MicroSystems
(Worcester, MA) has introduced the A3901 dual H-bridge
low-voltage motor driver. Capable of operating one stepper
motor or two DC motors, the unit is designed for portable
applications with a power-off current of 50 nA and an
operating voltage range of 2.5 V to 5.5 V. MOSFET output
stages reduce voltage drop and power dissipation of
the outputs. Internal circuit protection includes thermal
shut down and hysteresis, transient-suppression diodes,
and crossover current protection. The device is supplied
in a lead-free, ten-lead MLP power package (3 ×
3 × 0.75 mm) with an exposed thermal pad. Both
H-bridges can be paralleled for higher current operation.
For Free Info Visit http://info.ims.ca/5786-301
Servo Drive
Module 
National Instruments (Austin, TX) has announced the
NI 9505, a field-programmable gate array (FPGA)-based,
H-bridge servo drive module for the NI CompactRIO embedded
platform. The module offers direct connectivity to actuators
such as fractional-horsepower brushed DC servo motors,
relays, solenoids, lamps, and valves. A continuous current
of up to 8 A at 40°C (or 2 A at 70°C) can be
delivered, with a peak current of 12 A at 30 V, it can
be used with NI's LabVIEW graphical system design platform
to create intelligent control systems.
For Free Info Visit http://info.ims.ca/5786-305
Motor &
Driver Package
The CRK series from Oriental Motor USA Corp (Torrance,
CA) co mbines
a five-phase stepping motor with a compact, low-vibration
microstepping driver. In microstep operating mode, the
driver provides 25 preset angle selections up to a capability
of 250 microsteps per full step. The basic angle can
be adjusted to match a twophase stepping motor's step
angle. The series is available in four frame sizes:
20 mm, 28 mm, 42 mm, and 60 mm. Motors are available
with step motor holding torques ranging from 3.2 oz-in
to 230 oz-in. The standard tapered hob TH gear type
has gear ratios from 3.6:1 to 30:1, with a maximum backlash
of 60 arc-minutes. The planetary PN gear type possesses
gear ratios from 5:1 to 50:1, with a maximum backlash
of 3 arc-minutes. The harmonic HG gear type provides
gear ratios of 50:1 and 100:1 with no backlash.
For Free Info Visit http://info.ims.ca/5786-310
June 2006
Linear Drive
TThe TA330 linear three-phase servo drive from Trust
Automation (San Luis Obispo, CA) is a 150-V, 900-W continuous
(2700-W peak) linear drive. It can be configured to
interface with any motion controller, including three-phase
DC brushless servo motors using Hall Effect sensors,
three-phase AC brushless motors using external sinusoidal
commutation, single-phase DC brushed servo
motors in bridged mode, and brushless linear motors.
With low electrical noise, the TA330 is designed for
integration in or near systems with noise-sensitive
circuitry, such as sensors and transducers. It can be
used with high-inertia mismatched stages and low inductance
motors.
The standard model requires a 24-V input to power logic
and bias supplies. The standard configuration allows
the drive to operate with low electrical noise. For
applications not sensitive to electrical noise, an optional
internal logic and bias supply can be provided. Measuring
14.9 × 7.7 × 4.7", the drive features
integral thermally controlled, variable speed, forced
air cooling; a housing that protects against operator
injury; ribbon connectors; SMB coaxial connectors; and
plug-gable-terminal connectors.
For Free Info Visit http://info.ims.ca/5659-300
Dual-Axis
Stepper Driver
The dual-axis EZHR17EN stepper motor controller and
driver from AllMotion, (San Jose, CA) is designed for
off-the-shelf, rapid implementation in miniature applications.
Measuring 1.6 × 1.6" and featuring encoder
feedback, it provides up to two amps drive current for
one axis and up to one amp for the second, with a n
optional second stepper or bi-directional DC driver
daughtercard. The unit microsteps up to 1/256, and is
suited for medical, scientific, and optical equipment.
It is capable of standalone operation and can be programmed
to execute a string of preset commands upon power-up.
The integrated stepper motor controller and driver
fasten to the back of the stepper motor. A single four-wire
bus equipped with two power wires and two communication
wires can link up to 16 stepper motor controllers in
a daisy chain. Other features include RS-232, RS-485,
or USB-based communication; up to 20 million microsteps/second;
and operation from 12V to 40V.
For Free Info Visit http://info.ims.ca/5659-321
Servo Drives
Parker Hannifin’s Electromechanical Automation
Div. (Rohnert Park, CA) offers high-power Compax3 all-digital
servo drives, available with current output to 10A and
15A RMS. The drives feature auto-tuning, internal function
generator on all units, and support for Stegmann single-
and multi-turn absolute encoders. All Compax3 drives
ship with the Compax3 ServoManager software package
for commissioning the drive. The ServoManager program
provides diagnostic screens, graphical tuning utilities,
an OS download tool, HTML Help tools, an S-curve acceler
ation calculator, and a motor configuration wizard to
be used with non-Parker motors.
For Free Info Visit http://info.ims.ca/5659-344
CAN Card
The Model CAN-PCI-02 Control Area Network (CAN) card
from Copley Controls Corp. (Canton, MA) provides an
interface between the company’s distributed motion
control software and its CANopen servo and stepper drives.
It facilitates plug-and-play CANopen operation and is
PCI compliant. Compatible with 3.3V and 5VDC environments,
the card’s onboard microcontroller offloads processing
tasks from the host computer. The card employs high-speed
ISO 11898 driver circuits for CAN bus bit rates to 1
Mbit/sec, and provides dual isolated channels and PCI
32-bit interface. The card’s two independent CAN
ports are isolated for noise immunity.
For Free Info Visit http://info.ims.ca/5659-320
Variable
Frequency Drives
AC Technology, a member of the Lenze Group (Uxbridge,
MA), has introduced the SMVector drive, featuring a
power range of up to 20 Hp. Four modes (v/Hz, enhanced
V/Hz, vector speed, and torque), high starting torque,
auto-tuning, low-speed control, and dynamic speed regulation
are provided. The unit’s input voltage ranges
from 120 VAC 1phase to 600 VAC, 3-phase. The drive also
includes an Electronic Programming Module, which is
the drive’s memory in a removable chip, allowing
users to program multiple drives quickly.
For Free Info Visit http://info.ims.ca/5659-328
Right-Angle
Gear Drives
Torque Transmission (Fairport Harbor, OH) has introduced
a line of rightangle gear drives housed in glass-reinforced
nylon, and are available in two  model
groups: RAB (standard right-angle drive) and MAD (for
miniature angle drives). Both models feature one or
two inputs and 1:1 or 2:1 gear ratios. RAB gear drives
measure 3-21/32 × 3-15/16 × 1-1/4"
deep and weigh 12 ounces. They employ shielded, lubricated,
hardened steel ball bearing and gears, and are rated
at 1600 RPM and 1/3 horsepower maximum speed of 3000
RPM.
MAD models measure 1.25 × 1.25" and weigh
three ounces. They use permanently lubricated gear drives,
hardened steel helical gears, and non-metallic bearings,
and are rated at 1,800 maximum RPM and 1/8 horsepower
continuous duty.
For Free Info Visit http://info.ims.ca/5659-346
February 2006
Miniature
Digital Servo Drive
Whistle” digital servo drive with up to 500 watts
of continuous power at 99% efficiency. The device weighs
1.76 ounces and measures 2 × 1.8 × 0.6".
It interfaces to brush DC, brushless PM, and linear
and/or voice coil motors. Power is provided by an external
7.5 to 95 VDC isolated DC power supply. A supply control
algorithm enables the device to operate with one power
supply. Seven models offer voltages and current levels
from 1 amp, 60 volts to 6 amps, 100 volts continuous
operation. The drive incorporates the control capabilities
of the SimplIQ family of drives that offers feedback
options, programming capabilities, communications protocols,
and controlled motion technology. The drive can be mounted
to the motor housing or in close proximity to the motor.
For Free Info Visit http://info.ims.ca/5655-303
Stepper
Drive
The STAC6-Si stepper drive from Applied Motion Products
(Watsonville, CA) is programmable for standalone operation
with Si Programmer™ Windows-based software with
integrated tuning. A graphical point-andclick format
combines motion, I/O, and operator interface functionality
for machine sequencing.
The stepper drive features current output from 0.5
to 6.0 A with 90-135 VAC input, 50/60 Hz, and software-selectable
resolutions from 200 to 51,200 steps/rev at speeds to
133 rps. Self-test and auto setup features measure and
configure motor parameters automatically, while anti-resonance
technology eliminates midrange instability. Torque ripple
smoothing adjusts the current waveform to reduce speed
torque ripple for motion at low motor speed. Microstep
emulation provides smooth motion for systems that require
low-step resolutions.
For Free Info Visit http://info.ims.ca/5655-318
Tension
Stepper
Azonic Products (Albion, NE) has released the Model
300 switchable tension stepper that allows set-up of
up to four predetermined tension levels that adjust
during a winding cycle. The switchable tension stepper
enables a user to adjust to another tension level for
regular winding speed and have another tension level
for deceleration and tapping. A user’s existing
winder controller controls the device remotely. The
Model 300 is suitable for use with the company’s
tensioning devices.
For Free Info Visit http://info.ims.ca/5655-311
Thermoplastic
Insert Couplings
R+W America (Bensenville, IL) has introduced the SERVOMAX
TX1 series of molded thermoplastic insert couplings
that are suitable for pump drive and servo applications.
The couplings are chemicalcompatible and tolerant to
heat, and have an elastomer element that is press-fit
between two molded coupling halves, providing zero backlash
and concentricity. The elastomer insert is available
in various shore values. The TX1 series is designed
for a pure keyway connection and is bored to customer
specifications. Shaft mounting is achieved via keyway
and a set screw. Sizes are available for torque capacities
ranging from 2 Nm to 660 Nm, and bore diameters from
8 to 45 mm and 0.375 to 1.75".
For Free Info Visit http://info.ims.ca/5655-323
Motor Driver
Allegro MicroSystems (Worcester, MA) has announced the
A1441 fullbridge motor driver designed to drive single-phase,
low-voltage, bipolar brushless DC motors. Commutation
of the motor is achieved by the use of one Hall element
to detect the position of an alternating pole ring magnet.
The IC semiconductor process enables the integration
of Hall element on the same IC as the motor control
circuitry.
An on-chip charge pump circuit allows the use of a
MOS full-bridge output that includes body diodes. All
necessary circuitry is integrated, and no external devices
are required. The switchpoints of the devices are chopper-stabilized.
An active braking function and sleep mode can be enabled
by an external signal. The device is available in a
2 × 2 × 0.5 mm MLP package with 100% tin
plating.
For Free Info Visit http://info.ims.ca/5655-306
December 2005
Harmonic
Drives
ABB Inc. (New Berlin, WI) offers the ACS 800 ultra-low
harmonic drives
available in wall-mount units (ACS800-U31) with 7.5
to 125 horsepower, and
cabinet-built configurations (ACS800-37) with 125 to
2,800 horsepower.
The drives do not require multi-pulse transformers,
external filters, or additional
equipment for harmonics reduction. The drives use an
active converter,
controlled with Direct Torque Control, to eliminate
low-order harmonics,
and an active front-end LCL line filter to reduce high-frequency
harmonics.
The wall-mount drives feature operating voltages of
208 to 240 Vac,
and 380 to 500 Vac. The cabinet drives feature operating
voltages of 380 to
500 Vac, and 525 to 690 Vac. Standard features include
programmable I/O
and an alphanumeric, multilingual control panel. Options
include EMC filters
and extension modules for additional I/O and fieldbus
adapters.
For Free Info Visit http://info.ims.ca/5294-328
October 2005
Stepper
Drive
Applied Motion Products (Watsonville, CA) offers the
STAC6 stepper drive that features current output from
0.5 to 6.0 A with 90-135 VAC input, 50/60 Hz, and software-selectable
resolutions from 200 to 51,200 steps/rev at speeds to
133 rps. Self-test and auto setup features measure and
configure motor parameters automatically. Demand Signal
Smoothing reduces extraneous system resonances for smoother
motor performance and reduced wear on mechanical components.
A torque ripple smoothing feature adjusts the current
waveform for smooth motion at low speeds. Two integral
control options are available, including a graphical
programming language and a high-level language for control
of drive features. Setup and configuration are performed
using supplied Configurator software. For Free Info
Visit http://info.ims.ca/5292-317
Digital
Servo Drive
Baldor Electric (Fort Smith, AR) offers the MicroFlex
digital servo drive for use with brushless rotary AC
servomotors using resolver feedback. The resolver input
model uses a resolver-to-digital-converter (RDC) IC
to convert the analog motor feedback signal into digital
data immediately prior to processing. The drive’s
digital signal processing enables users to optimize
system performance via softwareconfigurable, anti-resonance
filters.
Capable of operating in torque or velocity control
mode, the drive uses sinusoidal resolver-based commutation
to minimize torque ripple, and features a simulated
encoder output for connection to an external motion
controller. It is available with 3, 6, and 9A continuous
power ratings and operates from any singleor three-phase
50/60Hz supply in the range of 115-230 VAC.
For Free Info Visit http://info.ims.ca/5292-301
Variable-Frequency
Drives
Danfoss Drives (Loves Park, IL) offers the VLT 5000
Series variable frequency drives that provide full constant
or variable torque. They are available in 125-500 HP
and 40-350 HP. Also available is the Flux version of
the drives, which provides servo-like performance using
standard synchronous AC motors. For variable torque
applications, dedicated variable torque drives are available
in 100-400 HP.
The drives are available with three enclosures: Chassis/IP00,
NEMA1/IP21, and NEMA12/IP54. They include built-in Class
A2 RFI filtering, integral disconnect with the option
of available fuses, logic routing with tie-down provisions,
and the ability to accept single-box lug or dual-cable
legs. Ambient operating temperature ratings are 40-45°C
in VT mode, and 50°C with changes in switching pattern.
For Free Info Visit http://info.ims.ca/5292-311
Digital
Servo Amplifier
The Ndrive® MP digital servo amplifier from Aerotech
(Pittsburgh, PA) is a discrete drive that measures 41
× 141 × 107 mm. It drives brushless, DC
brush-type servomotors and stepper motors, and can perform
both current loop and servo-loop closure. The amplifiers
are built on digital signal processors and can perform
complex calculations in real time. They can sample the
digital current loop and servo loop at a rate of 20
kHz.
The amplifiers handle both digital and analog I/O and
encoder multiplication, and feature output current up
to 10 A at 80V DC. Options include a software-based
encoder multiplier, brake relay, additional I/O, and
separate logic supply inputs for keep-alive operation
during an E-stop condition. Any combination of amplifiers
can be used on the FireWire® network for customization.
For Free Info Visit http://info.ims.ca/5292-314
June
AC Drives
The ACS550 line of AC drives from ABB (New Berlin, WI)
provides a voltage rating of 600 V in a 1.5-150 HP range.
The line is constructed of a sensorless vector design
and includes two internal slots for encoder feedback,
115/230V digital interface card, I/O expansion, and
feedback adapters. Available in NEMA 1 or NEMA 12 enclosures,
the drives are suitable for powering fans, pumps, and
motors belonging to machines and processing equipment.
For Free Info Visit http://info.ims.ca/5081-300
Drive Gearhead
The Quantum Series torque capacity harmonic drive gearhead
from HD Systems (Hauppauge, NY) provides 1 arc-min positional
accuracy, and ±5 arc-sec repeatability. The Quantum
Series size 32 gearhead has an outer diameter of 138
mm and is 62 mm in length. It has a rated torque of
1,575 in-lbs and a maximum torque of 7,890 in-lbs. Available
in gear ratios of 50, 80, 100, 120, and 160:1.
For Free Info Visit http://info.ims.ca/5081-306
Two-Phase Stepper Drives
Source Engineering Inc.’s (SEI, Santa Clara, CA)
two-phase bipolar stepping motor drivers (model 2HB03M)
measure 2.95" x 4.96" x 1.26" and feature
input voltage of 20 to 40 VDC. A potentiometer is used
to adjust the running current. The idle current is 50%
of the running current and is activated in 0.5 seconds
after the last pulse.
The drivers can be used for microstepping. Dip Switch
settings provide microsteps of 2, 5, 10, 16, 20, 32,
40, and 64 step-per-step. The twophase steppers are
suitable for pick-and-place, medical testing equipment,
robotics, toys, semiconductor manufacturing, security
applications, and assembly operations.
For Free Info Visit http://info.ims.ca/5081-312
DC Servo Driver
AllMotion’s (San Jose, CA) EZSV10 DC Brush Servo
Driver measures just 0.95" x 1.4" x 0.6"
(24 x 35 x 15.24 mm) and requires little or no tuning
when used with most motors measuring less than 1.5"
in diameter. A single four-wire bus (two power, two
communications) can daisychain up to 16 DC motors simultaneously.
The fully intelligent driver/controller accepts high-level
commands from a serial port to control motors at 1.5
Amp continuous, from 12-40 V. Programming is intuitive;
first-time users can typically make their servo motor
move intelligently in less than 30 minutes.
For Free Info Visit http://info.ims.ca/5081-318
Worm Gear Operators
Flowserve Corp. (Dallas, TX) has added two new sizes
to the Flowserve Limitorque PT series of worm gear operators.
The PT series provides the torque needed for operation
of quarter-turn valves used in water and wastewater
treatment, petroleum refining and distribution , and
other industries.
The PT-12 and PT-14, rated at 880 ft-lb and 1,600 ft-lb
respectively, provide added versatility for torque and
operating time requirements. They are constructed with
a rugged cast-iron housing for weatherproof, submersible,
or buried service applications.
For Free Info Visit http://info.ims.ca/5081-324
April
AC Drives
 Danaher
Motion’s (Wood Dale, IL) SECObranded Bronco VFD
Series Variable Frequency AC Drives have new features
for enhanced operation including an isolated front end
for highly reliable operation and a voltage doubler
circuit that can output 230 VAC to a motor from a 115
VAC power supply. These dual-voltage inverters can also
accept a speed reference signal without a separate isolation
card, and are available for up to 1.5-HP operation.
Three styles are available: chassis, NEMA 4 cast aluminum,
and NEMA 4x USDA rated white epoxy coated aluminum with
stainless steel hardware.
For Free Info Visit http://info.ims.ca/4834-311
February
 Micro
Stepping Drives
Haydon Switch & Instrument (HIS, Waterbury, CT)
introduces the High Performance Micro Stepping Chopper
Drives suitable for driving 2-phase step motors (maximum
current ratings of 2.8 A and 5.5 A per phase). Suitable
for 4-, 6-, and 8-lead motors, the DCM8028 and DCM8055
feature high performance, low cost, compact size, mixed
decay current control for less motor heating, automatic
idle-current reduction, and micro step resolutions from
1/2 step to 1/256.
There are fourteen micro step resolutions selectable
in decimal and binary. The output current levels and
micro step resolutions are easily set via the 8-bit
DIP switch. The drives are particularly useful in motor
applications requiring low noise, low vibration, high
speed, and high precision.
For Free Info Visit http://info.ims.ca/4465-902
 Linear
Drive
Distributed by Amacoil (Aston, PA), Uhing Company’s
RS4 drive nut provides smooth, backlash-free linear
motion. Specially machined, rolling ring bearings inside
the drive assure constant single-point contact between
the bearings and the drive shaft, resulting in zero
play when the shaft is rotated, even during reversal.
Available in seven sizes to meet varying payloads and
linear speed requirements, the RS4 is configurable for
vertical or horizontal travel. Shaft rotational speeds
may be up to 10,000 rpm depending on the size of the
drive. Linear travel speed ranges from 0.5 ft/s up to
4.0 ft/s.
For Free Info Visit http://info.ims.ca/4465-905
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