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Based on the improved automatic machine model identification method PSI Technics developed an advanced closed-loop control solution – ARATEC with FLP6000AOC Advanced Oscillation Control – that offers optimum oscillation control for stacker crane masts.
Now oscillations that are caused by the stacker crane's traveling movements can be prevented right from the outset while oscillations caused by external influences are almost fully compensated for in near real-time. The ARATEC Positioning Solution System with FLP6000AOC positions highly dynamic vehicles in logistics systems better and faster than ever before.
The FLP6000AOC significantly reduces mechanical stresses and the cycle time of stacker cranes and helps you to increase the throughput and lifespan of your warehouse or automated storage and retrieval system.
The tangible result: Shorter cycle times, reduced oscillations and thus increased throughput that simultaneously maximizes the lifespan of your system.
The video clearly shows that the oscillations are almost non-existent after the vehicle has been positioned at the target using PSI Technics' ARATEC with FLP6000AOC. No waiting times to compensate for oscillations are required prior to storage as is often the case for conventionally controlled machines. Apart from reducing cycling times, the ARATEC Positioning Solution System with FLP6000AOC also reduces mechanical stresses – a significant advantage with regard to system maintenance and longevity.
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The Figure shows a comparison of oscillations occurring between the stacker crane's mast tip and the drive located at the base of the crane, a common setup for stacker cranes within automated storage and retrieval system (ASRS) environments. For the conventionally controlled system a PLC and a laser distance meter were used at the mast base. For the ARATEC with FLP6000AOC control setup a laser distance meter at the mast tip was used for closed-loop control.
The red graph represents oscillations that are occurring when a conventional positioning controller is used that does not compensate for these oscillations – for example, a software module that can be added to a frequency converter drive.
The green graph shows measurably reduced oscillation with the ARATEC Positioning Solution System with FLP6000AOC installed on the same stacker crane. The oscillations that occurred before the actual positioning were caused by the acceleration and deceleration of the stacker crane.
Our application engineers would be happy to provide recommendations for your specific operating environment. Please call +49 (0) 2630 91590-0 or use the contact form to submit your questions or requests or send an e-mail to support@psi-technics.com.
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Designed for the continuous monitoring and visual quality control of production processes.
PSI Technics offers easy-to-use, application-specific digital image processing solutions that are designed for the continuous monitoring and quality control of production processes. Nearly all monitoring and measuring tasks can be automated by means of industrial image processing. Watch movie
PSI Technics' ARATEC Positioning Solution System is an innovative solution for industrial positioning applications.Watch movie
We invite you to experience a completely new type of control technology – in an entertaining short story. A clear and straightforward presentation will show you why the ARATEC is the best positioning solution on the market: For STACKER CRANE applicationsFor BRIDGE CRANE applications
PSI Technics' ARATEC Positioning Solution System is an innovative and advanced solution for industrial positioning applications. Watch movie
The ARATEC's FLP6000AOC software reduces mast oscillations – even of highly dynamic stacker cranes – to a minimum. The test setup shows that the ARATEC Positioning Solution System with enabled FLP6000AOC compensates for mast oscillations in near-real time, even when the oscillations are caused by external disturbances.
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PSI Technics GmbH
An der Steinkaul 6a
56333 Winningen | Germany
PHONE +49 (0) 2630 91590-0
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