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TPP Kosovo: Electrical refurbishment of Stacker/Reclaimer

 

Electrical refurbishment of Stacker/Reclaimer (I+II)

 

 

 

Technical description

 

The offered solution implies replacement of existing measuring and control equipment with new modern equipment from well-known producers. 

Automation of Stacker/Reclaimer will be carried out with SIEMENS PLC system S7-300. As process controller SIEMENS processor from family S7-300, type 317-2PN/DP will be used. Collecting of measuring and control signals will be done distributed with remote I/O modules of type ET200M, and with Profibus sent to process controllers. To reduce the wiring the distributed I/O stations will be installed in each cabinets and all wirings will be done to the I/O modules installed locally in a cabinet. Also all smart devices like frequency converters, energy meters, encoders etc. will be installed with with Profibus communication cards and integraded into system via Profibus.

To increase reliability and to reduce sensitivity to communication errors Profibus network will be realized in the form of ring with fiber-optical cables wherever cable goes out of cabinet..

Visualizing and control of plant will be carried out on industrial SIEMENS 19” rack PC.

SIEMENS 19” rack PC will be placed in the operator cabin and from there connected to process controller via industrial Ethernet and with fiber-optic cable.

Redundant power supply is also provided for process controller.

Operator stations will be mounted into cabinets with 19“rack, with provided UPS and ventilation. Operator station will be used to monitor the machine, wehere as the control will be done by commands installed on panel with buttons and joystics.

An engineering station with all necessary SIMATIC software will be provided in form of ruged industrial field Laptop. It will be used for making improvements in the automation project and for diagnosing and maintanance purposes.

Software for process visualizing and control will be done with SIEMENS process software Step 7 and WinCC v7.0. Advantages that this software offers are simple programming using ready-made software blocks (motor, valve, regulator, measurement,...) and easy process visualisation usign ready-made faceplates. Also this software enables programming of complex sequences as well as very detailed infromation about every system component and system as whole (alarm messages, status messages, and dijagnostics of PLC hardware components ...).

 

 

 

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