6SN1118-0DK23-0AA2

Siemens 6SN1118-0DK23-0AA2 is a two-axis High Performance control-loop board for SIMODRIVE 611 digital. The board handles the digital control function within a matched converter arrangement; the motor power stage and infeed remain separate components. Its exact execution supports sin/cos 1 Vpp feedback and a direct measuring system, so selection must consider both motor feedback and any direct position feedback installed on the machine.

During power-on or reset, the drive software is transferred from the SINUMERIK 840D to the control board over the drive bus. The exact order-code configuration requires NC software from 06.04.09. The High Performance two-axis family supports sinusoidal measuring signals and applicable absolute-encoder arrangements, but encoder selection and software capability must be checked together rather than inferred from the mechanical fit of a connector.

A two-axis digital control can also be engineered for a one-axis application in a suitable one-axis power module. This is a configuration choice, not a change of board identity. When replacing the board, preserve the drive software and parameter records, identify both feedback paths and verify the matching power module. Commissioning must then establish the correct axis assignment, feedback direction and controlled motor response within the approved machine procedure.