Safe retraction of electrode after system error

Release Note

This function is available as of Build V4.23.0.

This functionality must be activated in the down channel using the parameter P-CHAN-00865.

If a system error occurs during the die sinking process (CNC error or power failure), the electrode stops in the workpiece. It is then impossible to restore the system state at the time of the interruption. This results in the situation that it is not possible to continue the erosion process after the system error is remedied.

This is why there is an electrode retraction cycle that allows the electrode to be retracted safely from the workpiece. After the electrode is retracted, the original program can be restarted and the workpiece can be machined to completion.

Data saved at the time of interruption is used to ensure safe retraction. This data is saved to a persistent memory and is also available after a CNC restart. If a CNC error occurs, the required data is saved automatically. If a power failure occurs, the user must trigger the save operation. The Retract electrode after error control unit is used to save the current system data.

The electrode retraction cycle contains a detailed description of how the CNC cycle is used.