Product category:
Stepper and Servo Drives, Motors, Controls
News Release from: Dynamic Structures and Materials | Subject: VF-500, VF-2000 and SA-200
Edited by the Engineeringtalk Editorial
Team on 15 August 2005
Amplifiers take control of piezo stages
Three high-power benchtop piezoelectric amplifier and controller products are used to drive piezoelectric materials in micropositioning, nanopositioning and ultrasonic applications.
Dynamic Structures and Materials (DSM) has released three new, high-power benchtop piezoelectric amplifier and controller products These instruments are the third generation of DSM's piezo electronics, which are used to drive piezoelectric materials in micropositioning, nanopositioning and ultrasonic applications
This article was originally published on Engineeringtalk on 12 Jun 2006 at 8.00am (UK)
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The new models feature increased power levels, increased bandwidth, and additional functionality for ease of use in laboratory or OEM applications.
The VF-500 linear amplifier is a workhorse laboratory instrument designed for driving large piezo loads or smaller loads at relatively higher frequencies.
The product features a peak current of 1A, bandwidth of greater than 3kHz, output noise of less than 10mV RMS, and is compatible with 85-264V AC, 47-63Hz input power.
Further reading
Drive modules offer system integrators flexibility
The first multiple drive system on a common DC bus is now available as Modules from ABB, for use by system integrators, panelbuilders and OEMs.
Quieter low power drives now go silent
ABB has introduced a user-programmable silent operating mode for its Comp-AC range of low power AC drives.
The amplifier has a gain of 20 that is applied to a low-voltage analogue input signal to achieve the standard output voltage range of -30 to +150V (custom voltage limits are available on request).
The front panel LCD enables a menu-driven user interface for changing a DC offset voltage and for configuring a built-in sinusoidal waveform generator.
The product also features overcurrent and overtemperature protection.
The new product can also be provided in a multichannel version.
The VF-2000 linear amplifier is designed for OEM applications and offers two independent channels featuring 2A peak current per channel.
The amplifier's bandwidth is greater than 30kHz, output noise is better than 10mV RMS, and the input power requirements are compatible with 85-264V AC, 47-63Hz.
A total of 150V is available for configuration per the application requirements (ie +/-75V, -30 to +120V, 0 to +150V etc).
The VF-2000 also features optional circuitry to accept a TTL input trigger for fast switching of a piezo load between the amplifier's two voltage limits.
Overcurrent and overtemperature protection are standard features.
Applications requiring closed-loop control for true nanopositioning will benefit from the SA-200 servo amplifier.
The SA-200 features 350mA maximum peak current, around 1mV RMS electrical noise on the output, and a bandwidth greater than 3kHz.
A built-in controller features full user-configurable PID gain settings.
Standard product features include serial communication (RS232), LabView VIs, a 24bit analogue input channel, and analogue or digital feedback for a closed-loop control signal.
Optional features include a second 24bit analogue input channel and two channels each of digital I/O for enabling TTL lines (customised software for enabling digital I/O functionality can be provided).
Standard line voltage requirements are105-125V AC, 50-400Hz, and 210-250V AC, 50-400Hz operation is available.
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