Requirements for the barcode encoder

If jumps in position are present in the code tape used, the following restrictions apply:

  • The barcode encoder is used for determining the "position" process value:
  • In the event of a position jump, the safety sub-functions SOS, SS2, SDI, SLI, SLP, and SCA cannot be used.
  • The barcode encoder is used for determining the "speed" process value:
  • In the case of position jumps, the calculated speed is incorrect and can lead to false tripping of the safety sub-functions or to a critical fault.
  • Safe position:
  • The raw position or the absolute position of the encoder should be used.
  • Safe speed:
  • The safe speed is not determined correctly in the event of position jumps. The range size depends on the speed filter time and the maximum possible speed.