Abstract: A multi-channel stepper motor controller has at least a first and second stepper motor control channel. Each of the control channels has a solid state switching circuit operable to connect the control channel to a stepper motor.

Abstract: An apparatus for controlling operation of a processing machine has a computer preferably with a computer aided design program configurable to model a kinematic velocity profile of a point of interest on a machine to be controlled. A graphical user interface on the computer enables an operator to select desired velocity points for a motor drive controlling motion of the point on the machine. A curve fit is applied to the velocity points to realize a desired velocity profile for the motor drive and the point on the machine. The desired velocity profile is then integrated and scaled in order to obtain a scaled velocity profile that realizes an actual, or target displacement of the point as dictated by operation of the machine. By controlling operation of elements of a machine with velocity profiles, coordination of associated elements and points on the machine can be visualized by an operator selecting the velocity points for each drive of the machine. A method for implementing same is also disclosed.

Abstract: A motor-driven step switch for step transformers includes a drive motor connected to the step switch, display, input, and control units, a controller for actuating the drive unit in accordance with rotation direction, an information unit which obtains and transmits the step position and which is connected with the controller which delivers commands for controlling the drive motor and a switching operation, and an electrical connection between the controller and display, input, and control units. In accordance with this invention the information unit has a sensor for determining the absolute value of the actual position of the step switch, a nonvolatile memory unit for storing the position of the step switches with a range of step positions, and a unit for determining an end position of the step switch.

Abstract: A cycle control device employing a parallel switching circuit to control a single or a predetermined number of cycles of a motor driven output shaft. A latching and a cycle switch in the parallel circuit are providing an overlapping switching sequence which is initiated by a latchable pushbutton and controlled further by the motor driven output shaft to the end of the cycle. An indexing arrangement is functioning to delay the unlatching and keeping the motor circuit energized until the unlatching and motor stopping can take place in a home position after a dial readable predetermined number of ratcheting steps have been completed. The control principle is applicable to a countdown version, a memory version with an automatic return or to a unit with a shaft mechanism to one or the other mode.