Product category:
Stepper and Servo Drives, Motors, Controls
News Release from: Lenze | Subject: PositionServo 940 and 941 drives
Edited by the Engineeringtalk Editorial
Team on 15 May 2008
Servo controller keeps things simple
As a distributed drive/control solution, PositionServo can be used without an external PLC, avoiding the additional cost of a separate controller and all the cables and connections required.
Lenze-AC Tech has released the latest generation of its PositionServo drive with full Ethernet connectivity as standard PositionServo is a powerful but simple introduction to a good quality reliable servo controller without the usual cost and complexity normally associated with servo automation solutions
This article was originally published on Engineeringtalk on 21 Feb 2000 at 8.00am (UK)
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There are two models available: the 940 designed for encoder feedback and the 941 intended for resolver feedback.
The user can choose the level of control, from basic torque and velocity control to fully programmable co-ordinated motion.
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As a distributed drive/control solution, PositionServo can be used without an external PLC, avoiding the additional cost of a separate controller and all the cables and connections required.
By putting the power of the motion controller in the same package as the drive, with 17 programmable I/O points, machine control is made easy.
"The fundamentals of this product are to bring simplicity to servo technology, with PositionServo it is far easier to program precise motion profiles and integrate low-cost yet high-resolution control into positioning systems", said Wayne Morris, International Sales Manager (Asia and South America).
Morris adds "These drives suit both centralised and decentralised applications and use a Basic-like motion-programming language, to provide precise indexing and positioning, while also accepting analogue as well as digital drive signals from motion controllers via Ethernet, RS-485, Modbus, CANopen and Profibus are options".
MotionView, Windows based programming software is shipped free in the box with each drive.
MotionView is easy to use with few parameters, preconfigured motors and an auto-tune option.
PositionServo drives currently range from 2 to 18A output (up to 54A peak) and can replace complex mechanical systems, such as line shafts and cams, clutches and brakes, pneumatic and hydraulic cylinders.
Typically the servo system will increase machine speed, accuracy and flexibility, while reducing build, maintenance and changeover times.
The system can also be programmed using the removable EPM chip, which is simply plugged into the front of the drive.
In the case of PositionServo models, it even holds the motion program.
The EPM, servo control parameters and motion programs need only to be configured once and can then be transferred to other PositionServo controllers without having power applied to them.
Program transfer from one EPM to another is made easy by the EPM programmer, a handheld, battery-powered unit.
PositionServo drives are available for machines with either single or three-phase supplies at nominal voltages of 240V and 400V, with an optional integrated EMC filter A voltage doubler feature also allows inputs at 110V single-phase to operate with 240V motors. Request a free brochure from Lenze ...
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