Showing posts with label Industrial Automation. Show all posts
Showing posts with label Industrial Automation. Show all posts

Practical Batch Process Management

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Practical Batch Process Management

Publisher: Newnes | Pages: 178 | 2005-02-28 | ISBN 0750662778 | PDF | 6 MB

Historically batch control systems were designed individually to match a specific arrangement of plant equipment. They lacked the ability to convert to new products without having to modify the control systems, and did not lend themselves to integration with manufacturing management systems.
Practical Batch Management Systems explains how to utilize the building blocks and arrange the structures of modern batch management systems to produce flexible schemes suitable for automated batch management, with the capability to be reconfigured to use the same plant equipment in different combinations.
It introduces current best practice in the automation of batch processes, including the drive for integration with MES (Manufacturing Execution System) and ERP (Enterprise Resource Planning) products from major IT vendors. References and examples are drawn from DCS / PLC batch control products currently on the market.







Vacuum-condensation Soldering Plant

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Application
In this plant, electronic components such as thyristors are soldered onto printed-circuit boards under a vacuum. This method ensures excellent soldering joints between component and carrier material. The required temperature is generated by steam on the workpiece.
Requirements
High degree of stability at a high operating frequency
Minimum installation overhead
Compact and space-saving design
Monitoring of relevant loads
Industrial connection logic
Circuit breaker for protection again short circuits
Load currents of 12 and 20 A
Solution
3RF2320-1DA "short-circuit-proof" solid-state contactors with a maximum load current of 20 A and a width of 22.5 mm are used for this application.
The devices have no moving parts and therefore a virtually unlimited service life.
These solid-state switching devices consist of a solid-state relay and an optimized heat sink, making them "ready to use".
Load failures are detected by the clip-on basic load monitor function module.
No tools are required for mounting-rail installation.




Extruder for the Production of Plastic Conduits

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Application
In the extruder, the plastic granulate is heated and compressed with an extrusion screw. The liquid plastic is pressed through a mold with different temperature zones at the end of which the conduit is given its final shape. The temperature of the individual heating zones is regulated by constantly switching the heating systems on and off. The heating zones are continually monitored in order to ensure high product quality.
Requirements
High level of stability at a high operating frequency
Minimum installation overhead
Load current per switching device of no more than 35 A
Connection of up to 10 heating zones per switching device
Monitoring of individual heating zones
Industrial connection logic
Solution
3RF2350 solid-state contactors with a maximum load current of 50 A and a width of 67 mm are used for this application.
These ready-to-use solid-state switching devices consist of a solid-state relay and an optimized heat sink.
No tools are required for mounting-rail installation.
The devices have no moving parts, ensuring a virtually unlimited service life.
"Extended" load monitoring ensures monitoring of the individual heating zones.




Industrial Automation Exibition 2009

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