Winding operations are the most difficult and complex of any inverter application.
Rolls of industrial webs can be as large as 180 inches in diameter, unspooling to a paper core 6 inches in diameter. The web therefore must maintain the appropriate tension throughout the machine as well as it also needs to travel through the process steps at the desired velocity, which requires correlating roll velocity with line velocity.This requires the drive and control system to calculate and modify the angular velocity in real time throughout the process.
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