I am running a buffered contouring move on a two-axis servo-hydraulic system. Position transducers are use for feedback signal. The contouring move is a series of sinusoidal waves (for example 1000 waves) with 100 msec periods. I am using a time interval of 10 msec. Move completes once in a while but most of the time the move check complete status sets a value of true without completing the move. The move check complete status set the true value randomly meaning that it does'nt happen at the same time interval. I check one of the solutions but I am sure our signal are clear.