Fundamentals

The control uses process monitoring to detect disturbances in the machining process, e.g.:

  • Tool breakage
  • Incorrect or missing workpiece pre-machining
  • Changed position or size of the workpiece blank
  • Wrong material (e.g., aluminum instead of steel)

Process monitoring compares the signal runs of the current execution of an NC program with previous machining operations or with constant values, thereby identifying any possible deviations. In case of deviations, the control reacts with one or several defined reactions. You may, for example, define that the control stops when the spindle current fails due to tool breakage.

Example: Drop in spindle current due to tool breakage

1

Recording of machining processes

2

Limits arising from the recordings and the defined parameters

3

Current machining operation

4

A process fault (e.g., due to tool breakage)

 
Tip

The control cannot monitor every machining process. If the spindle load is too low, the control may not detect a difference from idling (e.g., when finishing with a small oversize).

 
Machine

Refer to your machine manual.

This chapter describes the standard functions for process monitoring. The machine manufacturer may change the functions and/or define custom functions.