Motion Control & Drives


'ABS-brakes'for pnematics

April 2000 Motion Control & Drives

Festo is launching its Smart Soft Stop solution that provides a 50% speed increase of linear movements in pneumatics. With conventional technology, increased speed of operation requires increased acceleration resulting in a build-up of kinetic energy, which has to be controlled and transformed during the deceleration phase without damaging the flow control valves, end position cushioning and shock absorbers. This new system features minimal vibration, self-optimisation, increased productivity and simple installation.

The Smart Soft Stop solution supplies a controlled, opposing air supply before the stroke is completed. A typical, standard rodless drive unit with shock absorbers is capable of 13 double strokes in 20 s. The same drive without shock absorbers or sensors coupled with a linear potentiometer completes 21 double strokes in the same time. It also requires no adjustments and programming to boot. A DGP/L series cylinder, which is equipped with a type MLO-POT linear potentiometer, as well as an MPYE 5/3-way-proportional valve, is required. The controller continuously compares set-point and actual positions at the drive and optimises cylinder movements with the proportional valve.

The load, the cylinder diameter and the stroke are configured at the SPC 10 control unit with six DIP switches. When the teach-in key is activated, the controller memorises the positions for both stops, as well as frictional influence. Changing operating conditions are continuously compensated for by means of powerful adaptive control techniques.

Movement into the end positions is fast, impact-free and quiet, and high cycle frequencies, as well as improved productivity are achieved. The Smart Soft Stop sub-system can be integrated into the control sequence with only two digital inputs and outputs presenting new applications for pneumatics instead of more expensive, end-position-controlled electromechanical axes.

Festo

(011) 971 5500



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

More movement on the market
Motion Control & Drives
If you want to move something, you have to be able to control the movement. When positioning in the nanometre range everything matters and requires high performance motion control. Six years ago, Aerotech therefore set itself the goal of revolutionising the market for precision motion and machine control systems.

Read more...
Highly customisable robotic hand
Motion Control & Drives
NSK and the German Aerospace Centre are developing a robotic hand system that will help automate manual tasks. The concept centres on a customisable robot hand comprising individually configurable finger modules, an industry first.

Read more...
Electrically-operated diaphragm pumping solutions
Bearing Man Group t/a BMG Motion Control & Drives
BMG has extended its range of Ingersoll Rand ARO fluid handling products to include the new EVO series electric diaphragm pumps, designed to enhance energy efficiency and improve fluid handling productivity.

Read more...
Surface drill rigs for Navachab in Namibia
Motion Control & Drives
Epiroc South Africa recently delivered five of six FlexiROC drilling machines to key customer, Navachab Gold Mine.

Read more...
Grease degradation diagnosis technology
Motion Control & Drives
NSK is developing a world-first: a high-accuracy way of rapidly and accurately diagnosing the remaining life of lubricant grease. The company will provide the solution as a mobile app, enabling users to perform the onsite analysis of lubricant condition in bearings and linear motion systems.

Read more...
New compact VFDs with higher power ratings
Motion Control & Drives
Invertek Drives has revealed the extension of its industry-leading Optidrive Coolvert variable frequency drive with the launch of two new compact frame sizes with higher power ratings.

Read more...
Asset reliability care field dominated by WearCheck
Wearcheck Motion Control & Drives
Condition monitoring specialist, WearCheck has solidified its position as a leading player in the asset reliability care sector.

Read more...
Revolutionising manufacturing: the impact of machine learning in robotics
Motion Control & Drives
The integration of machine learning (ML) into robotics has the potential to revolutionise many industries, in particular the manufacturing sector. Yaskawa South Africa is at the forefront of embracing this transformative technology to optimise innovation and propel the manufacturing industry forward.

Read more...
Chain hoist friction clutch tester
WIKA Instruments Motion Control & Drives
WIKA’s FRKPS chain hoist test set is a reliable and efficient way to test the friction clutch on your chain hoist.

Read more...
Redefining Industrial Automation with the new Festo Valve Terminal
Festo South Africa Valves, Actuators & Pump Control
Festo recently introduced its latest innovation in the form of the Valve Terminal VTUX. This invention marks the beginning of a new era in valve terminals, with its features making it an impressive solution for the future.

Read more...