(under subclass 590) Subject matter in which the servo system, includes means which, in response to a predetermined type of error signal saturates and applies maximum power to the servo motor. During this mode of operation, the error signal loses control of the servo motor which runs at maximum rate toward its ultimate position. This mode is defined as the "slewing" mode. Means are provided whereby the error signal regains control under the proper conditions.
SEE OR SEARCH THIS CLASS, SUBCLASS:
561, for "band-bang" servos which are somewhat similar to slewing systems except that the end position is continuously predicted and thus the error signal does not lose control.
