Returning to the contour

Application

With the RESTORE POSITION function, the control moves the tool to the workpiece contour in the following situations:

  • Return to the contour after the machine axes were moved during a program interruption that was not performed with the INTERNAL STOP function.
  • Return to the contour after a block scan (e.g., after an interruption with INTERNAL STOP)
  • Depending on the machine, if the position of an axis has changed after the control loop has been opened during a program interruption

Description of function

If you have selected the Manual traverse button, this button will change to Approach position.

When you select Approach position, the control will open the Axis sequence for return to contour: window.

The Axis sequence for return to contour: window

The Axis sequence for return to contour: window

In the Axis sequence for return to contour: window, the control displays all of the axes that are not yet located at the correct position for program execution.

The control suggests a positioning logic for the sequence of the traversing movements. If the tool is located in the tool axis below the position to be approached, then the control offers the tool axis as the first traverse direction. You can also traverse the axes in a self-selected sequence.

Positioning the axes in a self-selected sequence

If manual axes are included in the axes to be returned to the contour, then the control will not suggest a positioning logic. As soon as you have correctly positioned the manual axis, the control will suggest a positioning logic for the remaining axes.

Positioning manual axes

Positioning the axes in a self-selected sequence

To position the axes in a self-selected sequence:

    1. Select Approach position
    2. The control displays the Axis sequence for return to contour: window and the axes to be positioned.

    1. Select the desired axis (e.g., X)

    1. Press the NC Start key
    2. The control moves the axis to the required position.
    3. When the axis has reached the correct position, the control shows a checkmark under Target.

    1. Position the remaining axes
    2. When all axes have reached their positions, the control closes the window.

    Positioning manual axes

    To position manual axes:

      1. Select Approach position
      2. The control displays the Axis sequence for return to contour: window and the axes to be positioned.

      1. Select the manual axis (e.g., W)
      2. Position the manual axis to the value shown in the window
      3. When a manual axis with encoder has reached the position, the control automatically clears the value.

      1. Select Axis in position
      2. The control saves the position.

      Note

      In the machine parameter restoreAxis (no. 200305), the machine manufacturer defines in which sequence of axes the control approaches the contour again.

      Definition

      Manual axis
      Manual axes are non-driven axes that need to be positioned by the machine operator.