Patent ID: 8251365

Claim:
A method for monitoring singling of sheet material using a singler having a drive and a control device for monitoring and controlling angular velocity (ω) of the singler comprising the steps: monitoring changes in angular velocity (ω) of the singler, monitoring a time duration between two singling processes, identifying a faulty singling when the change in angular velocity (ω) is greater than a permissible deviation (Δω), the angular velocity (ω) undershoots a threshold value (s), or the time duration undershoots a predetermined time duration (Δt), adapting the threshold value (S) or the permissible deviation (Δω) to properties of sheet material (BN) to be singled, storing velocities (G 1 , G 2 ) of the singler at times of the changes in angular velocity (ω), correlating the stored velocities (G 1 , G 2 ) with information about the presence of a faulty or fault-free singling which is derived from a sensor from the sheet material after singling, and adapting the threshold value (S) or the permissible deviation (Δω) by the control device on the basis of the velocities (G 1 , G 2 ) correlated with the information about the presence of the faulty or fault-free singling.