Message "Wire break" is displayed.

While pushing the key wire drive manual, the wire tensioning cylinders running against mechanical end stop. Message "Wire break" is displayed.

Possible cause 

1. Machine control is not „ON“
       (help: key „wire drive manual“ is shown dashed in the display)
    
2. The analog sensors (B1 & B2) are not properly adjusted. See attached file.
    
3. Pendulum head turns, but the copper wire has slippage:

• increase the wire tension for the chopper unit by 0.2 bar (min. 2.0 – max. 2.5bar)
   
• groove worn out, recess the welding disc.

4.  Converter U4 defect.