Modernization of paper cutter control:
replacement of the old controller, programming the technological functions,
replacement of the old control panel with the new panel
replacement of the visualization system
execution of SCADA system for archiving and extension of diagnostic functions
implementation of control of the work of the winding generator and winding shafts with torque regulation in order to obtain the desired tension of the web during cutting
Scope of work:
design,
software,
system start-up
Used PLC controllers, terminals, communication, visualization systems:
1 S7-412-2 PN central controller,
distributed structure of inputs / outputs on the site – 1 station with PROFINET in the operator’s panel,
1 MP277 touch-screen control terminal,
1 diagnostic station with the Zenon SCADA system,
AC, DC drives with encoder cards, controlled via Profibus DP.
List of controlled and measuring devices, control devices:
350 binary signals,
24 analog signals,
1 DC DCS800 DC motor with adjustable speed and encoder feedback,
2 ACS800 AC motors with adjustable revolutions with encoder feedback,
3 motors with direct drive,
unwind and winding functions implemented in the PLC,
regulation of web tension,
1 ultrasonic diameter measurement.
