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.
RELATED PATENT DATA
This patent resulted from a continuation application of U.S. patent application Ser. No. 09/011,755, filed May 8, 1998, which is now U.S. Pat. No. 6,084,375 which is a U.S. National Phase Application of PCT Application Ser. No. PCT/US96/14096, filed Aug. 28, 1996, which is published PCT International Application WO 97/09547, which claims priority on U.S. Provisional Patent Application No. 60/003,169, filed on Sep. 1, 1995, now abandoned.
An oven control system and user interface are provided for setting a target temperature for different zones within an oven. A thermocouple is provided in each zone within the oven to monitor the realized temperature within the specific zone of the oven. A plurality of different heater elements are also provided within each zone of the oven. The control system enables a user to easily and efficiently select a target setpoint temperature for each zone within the oven, or for the chair rail, or the sag rails. For the case of the oven, the setpoint provides a virtual heat setpoint for the complete oven section which is then realized by controllably regulating operation of the various unique heating elements within that zone of the oven to realize the desired setpoint temperature within that specific zone of the oven. Such control is realized by way of proportional integral differential (PID) loops that are adjusted for each of the heater elements in order to realize the desired virtual heat setpoint for the specific zone of the oven.
A vacuum pump (10) includes a control device (20) for processing operational data and operational instructions. Further, the vacuum pump (10) includes a touch screen (40) serving as display for displaying the operational data callable from the control device (20) and as input for inputting operational instructions into the control device (20). The touch screen (40) includes a display panel (42) and a key panel (44) as display and the input, respectively, and is connected with the control device (20) via a data line (36). By combining the display and the input in a single device, namely the touch screen, the trouble for display and data input is reduced.
