Automatic sheet sorting system for the cross cutting machine of the electrotinning line 1200/II
     Customer: Karaganda Metallugical Plant JSC “ARCELOR MITTAL TEMIRTAU”
RECONSTRUCTION OBJECT SPECIFICATION
     The cross cutting machine of the electrotinning line needs as follows:
- for strips cutting, coming to the maching in coils, on the sheets of exact length.
- sheet sorting according to thickness, punctures, surface defects.
- sheet arrangement in condition and non condition section
- production in the form of packs with set amount of sheets.
REQUIREMENTS TO SYSTEM
- To use available sensors as
much as possible
- To provide magnet rollers
current regulation in preset
limits.
- To provide the possibility to
set sheet quantity in the
pack.
- Automatic account of sheets
quantity in laying places
- Possibility of magnat rollers
work in continuous service
- To provide magnet rollers
isolation control.
- To provide the connection
with automatic control
system of the cross cutting
machine
Picture No1
SOLUTION AND AUTOMATION SYSTEM CHARACTERISTICS
     Automatic sheet sorting system is implemented on the basis of programmable controller
SIMATIC S7-300 CPU 315-2DP of the firm SIEMENS. Irreversible converters Simoreg DC Master 6RA70 are used for magnet rollers
control. The connection between the controller and and the converters is carried out through the switching processor CP340 according
to USS protocol. As number of sheets counters on the laying places №1,2,3,4, Operator’s panels ОР 73 are used, which are connected with the
controller by the busbar PROFIBUS. Systems components are mounted in the separate, airproof cabinets, provided ventilation system.
All sorting machine control system is a part of the electrotinning line 1200/III control system.
Picture No2
the structure of sorting machine automatic control system
Project implementation period
     Project implementation period is 1,2 months, commissioning is August, 2007.