Mode A. [Time], [stroke] and [count] can be selected. If [time] selected, set the time till the movement of loose core A terminated; if [stroke] selected, the movement of loose core will not terminate until the stop signal [X25, X26] of input point shows ON; if [count] selected, pipe thread control can be taken, and the movement termination is decided by the number of pipe tread pulse inputted through [X25]. `