ELECTROPOWER CONSULTANCY PRODUCT TECHNICAL

ELECTRPOPOWER CONSULTANCY IS LEADING MENUFACTURING COMPANY ASPECIALLY ALUMINIUM ROLLING MILL PANEL AND AUTOMATION.

1. COLD ROLLING MILL AUTOMATION SYSTEM

2. We provide comprehensive engineering solutions for various rolling mill like Aluminium, copper, steel, etc.
The range of our expertise including the successful commissioning of the following:
2-HI Skeen pass mill 4-HI Cold rolling mill
6-HI Cold rolling mill 12-HI Cold Rolling mill
20-HI Cold Rolling mill 6 Stand tandem Cold Rolling mill
Aluminium Hot rolling Mill MS Hot Rolling mill

3. Main Part of rolling mills are Motors and Drives. Motors and Drives selection should be accurate because of the
impact loads involved, the motors and drives must be selected to allow for momentary high overloads. If main
motor selection is not proper then can not be achieve required reduction. Same way as coilers motors and drives
selection are slightly wrong then it is not possible to achieve required reduction in the first pass and speed also.
From experience it has been shown that in order to meet the tension control requirements the motor speed must be
controlled to 0.01%. Fortunately many modern AC and DC digital drives can meet this static accuracy rating.
However, the more important criteria is the dynamic performance rating of the Drive which is necessary to minimize
the speed drop. The speed drop is affected by the inertia of the gearbox and motor combination as well as the
dynamic performance of the drive
.
We provide Automation of DC
Drives and DC Motors And as well as
AC Motors And AC Drives s per the
customer requirement.

4. 1.Thickness Control (Hydraulic
Gap Control, Automatic
Gauge Control including
mass flow and monitor
control)
2.Tension Control
3.DiaComputation
4.Auto Slow Down
5.Pass Scheduling
6.Automatic Gauge Control
(With X ray Gauge system)
7.Detailed self-diagnostics
Extensive in-house developments enable us to provide our customer with tailor made
solutions based on Standard Software Modules developed by us which have following futures:
COLD ROLLING MILL AUTOMATION STRUCTURE

5. Basic Functions
Main and auxiliary logic (smooth operation of entire
rolling mill with operation-oriented logic)
Sequences and interlocks (prevent malfunction of mill
operation reduce damage machine)
Profibus Interface with Drives (Remove drive control
logic)
Profinite Interface with Remote Operation Desk
(Reduce remote cables and malfunction)
HMI system (SCADA based monitoring system).
Latest technological Drive control system
Latest PLC for smooth operation
Logic and interlocks supervision and diagnosis
solutions
The Hydraulic Gap Control system(HGC)
Feedforward and feedback automatic gauge
controls (AGC)

6. The real-time / historical trend system includes the
following functions and features:

Display pan and zoom features.

Trend data can be exported as individual Windows
files.

Storage, retrieval, and editing of trend set files,
which define graphical and tabular data display
configurations: variable names, scaling, display
attributes.

Historical trend display integrated with real-time
trend displays.

Access by name to any process variable in host global shared
memory by means of a data dictionary.

Real-time trend data acquisition. Data is acquired at desired
time interval samples and made available for display on
networked HMI / maintenance support workstations.

Real-time trend data display. Web page screens are provided
for graphical and tabular display of high-speed, real-time data.

7. HMI system (SCADA based monitoring system)
1.Both Sides Screw Down Hydraulic Cylinders total Load Force
and individual Hydraulic Cylinder Load Force.
2.Both Screw Down Hydraulic Cylinders Pressure.
3.HP Hydraulic Tank Oil Pressure.
4.HP Hydraulic Oil Temp.
5.Entry and Exit Thickness (This are Operator targeted thickness.)
6.Rolling Oil Temp.
7.Rolling Oil Pressure.
8.Work Roll Bearing Temp.
9.Backup Roll Bearing Temp.
10.Material Breakage Monitoring Function.
11.Auxiliary Motors Status Screen.
12.Sequence Screen For AC Motors Logic.
13.Running Mill Hours.
14.Entry Actual Dia.
15.Exit Actual Dia.
16.Line speed.
17.DC Motors Temp.
18.Drives Temp.
19.Event Screen.
20.Trends.
21.Drives Status.
22.Alarm Screen

8. AGC
SERVO
EXIT
GAUGE
ENTRY
GAUGE
ENTRY
LINESPEED
EXIT
LINESPEED
computerized Hydraulic Automatic Gauge Control systems
Theaveragehumanresponsetimeisontheorderofa
quarterofasecond,atthemaximumrollingspeedofacoldor
foilmillitisnotpossibleforoperatortocontroloutputgaugeto
checkoutputcurrentgaugedeviationandthenchangetensionof
stripandrollgapfordesireoutputgaugeagain.Inputgauge
variationcauseeffectonoutputdesiredgauge.Duetothiseffect
ofinputgaugevariation,achievemaximumoutputstripflatnessis
toodifficultmanually.ItiseasytoseewhyAutomaticGauge
Control(AGC)isanessentialcomponentofmodernrollingmills.
ThesecomputerizedHydraulic Automatic Gauge Control
systemspermittheproductionofclosetolerancestripmerelyby
pushingabutton.Thesystemautomaticallyandconsistently
maintainsextremelytighttolerancethroughoutthelengthof
everycoil,regardlessofspeed.Basically,theAGCSystem,
monitorsthestripgaugeandcorrectsvariationswithin
milliseconds.Correctionsaretransmittedtoanaccurate,highly
responsiveelectro-hydraulicservo-screwdown.
Othercomponentsofthesystemincludeprecisionhigh-
responsegauges,astate-of-the-artindustrialcomputerand
appropriateinterfaceandoperationalsoftware

9. ThesecomputerizedHydraulic Automatic Gauge Control
systemspermittheproductionofclosetolerancestrip
merelybypushingabutton.Thesystemautomaticallyand
consistentlymaintainsextremelytighttolerancethroughout
thelengthofeverycoil,regardlessofspeed.Basically,the
AGCSystem,monitorsthestripgaugeandcorrects
variationswithinmilliseconds.Correctionsaretransmittedto
anaccurate,highlyresponsiveelectro-hydraulicservo-screw
down.
Without AGCitisdifficulttoachievetargetedgaugeThe
averagehumanresponsetimeisontheorderofaquarter
ofasecond,atthemaximumrollingspeedofacoldorfoil
millitisnotpossibleforoperatortocontroloutputgauge
tocheckoutputcurrentgaugedeviationandthenchange
tensionofstripandrollgapfordesireoutputgaugeagain.
With AGC System,thestripthicknessattheexitis
measuredbyX-rayequipmentandiscorrectedbythe
feedbackcontrol,whichadjuststhepositionoftherollsor
therollforceaccordingly,andAGCSystemmaintaintarget
gaugeandkeepdeviation+/-2micronaccuracyinthe
strip
.

10. 
Al cast Aluminium Rolling Mill, Baroda.

Archer Metal, shaper, Rajkot.

R.S. Foils P. Ltd, Baroda.

ZindalAluminium, Baroda.

ShahuwalaAluminium, Hydrarabad.

ZindalAluminium, Benglore.

ElmexIndia, Bhivadi, Rajasthan.

Alcon foils, Sonipat, Haryana.

JainalcoFoils,Rohtak, Haryana.

Jagdish Aluminium, P. Ltd, Ahmedabad.

RavirajFoils, Sanand, Ahmedabad.

SachetaMetal Ltd, Talod, Ahmedabad.

MinakshiyaAluminium, Kolkata.

G.H. Industries, Ahmedabad.

DeluxMetal, Ahmedabad

StellinoxStainless P. Ltd

Master India, Wada, Maharstra
Weconsiderthatcustomersareofparamountimportancetous,thuswestrivehardinfulfillingall
theirneedsandcateringthemtheexactoftheirrequirements.Qualityisaparameterwherewemake
nocompromises.Oureffortsarefocusedtodeliverthevaluedcustomerswithquality-oriented
products.
Someofourreputedclientsareasfollows:

Shrinathjirashayanp. Ltd, chhatral, Gujarat.

Per-Boiler, Sanand, Ahmedabad.

Maxwell Controls, Satej, Ahmedabad.

Green Fibres, Ahmedabad.

Vadaliyafoods, Rajkot.

Shah Foils P. Ltd, Ahmedabad.

VariyaPratik, Vatva, Ahmedabad.

VariyaEngineering, Bavala, Ahmadabad..

VariyaAluminium Foils, Bavala, Ahmedabad..

Surya Offset, Ahmedabad.

Western Metal, Puna.

Vellyiron, Himachalpradesh.

Vidya wires, Vallabhvidyanagar, Gujarat.

Gujarat Foils Ltd, chhatral, Gujarat.

VaidicIspatLtd, Beglore.

Radiant Controls, Ahmedabad.

RivanAluminium, Wada, Maharastra

11. CATERINGBRANDS
SHED NO. 9, DEVAM INDUSTRIAL ESTATE, OPP. BPCL PETROL PUMP,
SANTEJ-382721, DIST. GANDHINAGAR,AHMEABAD, INDIA
EMAIL:[email protected]