Rolling Mill - Riva Group

Wednesday, 22 July 2009 12:40

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BM ELETTRONICA supply a complete electrical project and systems for modernization the rolling MILL n°1 for RIVA GROUP – SIDERURGICA SEVILLANA, SEVILLA SPAIN

PROJECT DATA

Products : bars from 8 to50 mm average diameter
Production : 150 ton/h
Configuration: roughing Mill 8 stands, intermediate Mill 7 stands, finish Mill 1 Monoblockstand, Shears: 2 shears, start /stop technology

BM ELETTRONiCASUPPLIES

N°1 MT / BT (20KV/0,69KV) station with 8 switchgear ABB Unigerar
N°8 transfomer 5MVA
8 Active Drives Cabinets With ABB ACS 800 AC drives800 KW each,
2 ActiveDrive sfor Shear ABB ACS 800 withIGBT activefont end system
8 DC drive modernization with substitute the analog regulation board with new digital control system
5 Master controller with SimensS7 400
Control Desk , with9 touch screen panels
Scada System , with2 server , 14 clients, using intellution iFIX scada tool
DAS system , with IBA analyzer system
Level2 software, with SQL server data and WEB technology for tracking and data process management

NETWORK

7 network Cubiclerack19
2 HP PROLIANT SCADA server with intellutioniFIX server and hot backup
1 HP PROLIANT SQL server with1TB data storagedisk array
3 lelvl of Ethernet network ( level1 , level2, diagnostic)
9 profibus network based up optical fiber physical support
14 HP Desktop ClientswithKVM extender

MT/BT STATION

N°1 MT / BT (20KV/0,69KV) station with8 switchgear ABB Unigerar
N°8 transfomer 5MVA

POWER CENTER

STANDS DRIVES

N°5 BMActiveDrives AC/A Cconverter
Supply: 690 VAC
Power: 800 KW 660 V each
Powerconfiguration: Common DC BUS
Drive Model: ABB ACS 800, case R81 with fast extracting mounting bracket
Braking: DC chopper withpassive load ( resistance)
Control network : ProfibusDP 12 Mb with optical fiber support

SHEAR DRIVES

N°2 BMActiveDrives AC/AC converter with active front technology

Supply: 690 VAC
Power: 480 KW 660 V each
Powerconfiguration: Common DC BUS
Drive Model: ABB ACS 800 ,case R81 withfast extracting mounting bracket
Braking: Full regenerative power supply, withIGBT activefont end converter(ISU)
Filter: LCL passive filter system forreduce network THD ( less3%)
Controlnetwork : ProfibusDP 12 Mb with optical fiber support

AUXILIARES DRIVES

N°1 BMActiveDrives AC/AC converter
Supply:400 VAC
Power: 500 KW 660 V total
Power configuration: Common DC BUS
Drive Model: ABB ACS 800 ,case R7i and R4
Braking: DC chopper with passive load ( resistance)
Controlnetwork : ProfibusDP 12 Mb with optical fiber support

CONTROL SYSTEM

The control system is based up SimensS7 PLC hardware

Hardware :
1 CPU S7 417 for cascade control
1 CPU S7 416 for rolling mill auxiliaries control
2 CPU S7 416 for shear control a cut tolength optimization
1 CP Ethernet communication processorforlevel1 network ( PLC)
1 CP Ethernet communication processorforlevel2 network ( SCADA)
1 CP Ethernet communication processor for digital acquisition system and diagnosis(DAS)
7 CP profibus for drives and remote I/O control

SAFETY SYSTEM

The safetysystem isbasedup Siemens S7F safetyintegratedtechnologywithProfisafeNetwork

Alldrives, and allallrollingmillcontrolsare interfacedwiththe safetysystem

CONTROL DESK

With specialcustom design, the operator control desk is realize with double side plan, all working surface are in Stainless steel

All discrete commands are substitute with touchscreen HMI , a special rotative joypad functionality, permits the veryfast stands regulation

CONTROL SOFTWARE

All functionality are developed withSiemens PCS 7 tool, the cascadeand shear controlare compiled withSiemens CFC graphical development tool
The traking and process control realized with Siemens SCL language
The HMI architectureisdeveloped with intellution iFIX platform with client/server structureand redundancy, ( fileover) function

The level2 control, and rollingmillrecepitisdevelopedin WEB platformand using Microsoft VisualC .Net and ASP e XML/ AJAX functionality.

DIAGNOSTIC SOFTWARE

A dedicated network and special PLC software , basedup Broadcast UDP trasmisison, isused, with special IBA PDA software forfast graphic altrends, for all palnt svariables, with sampling timeless 20 msec.
A dedicate hardware permitsthe long data storage ( 1 year) for all data variables.

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