The Drive Control System (DCS) usually works with revolution encoders and manually entered roll diameters. Entering even just one of those diameters incorrectly can lead to expensive problems:
- damaged sheet surface, resulting in poor printability
- excessive canvas wear due to poor transfer of drive power
- numerous sheet breaks, ruining the machine’s runnability
With its many different positions, the drying section requires a high quality DCS. Due to shrink and elongation of the web, each position needs its own running speed. Too much drag between two positions will break the sheet; too little drag causes wrinkles or fluttering.
Feltest Products for accurate speed measurements
Feltest RealSpeed– an accurate tachometer, specially designed for paper machines.