6SN1118-0DJ21-0AA2

Siemens 6SN1118-0DJ21-0AA2 is a High Performance digital control unit from the SIMODRIVE 611D modular drive system. Siemens documentation identifies it as a one-axis positioning control unit without a direct measuring system. It is designed to operate as the closed-loop control component within a SIMODRIVE 611 drive configuration.

The module is intended for single-axis control and supports motor feedback using SIN/COS 1 Vpp encoders. Available technical documentation also identifies support for incremental and EnDat feedback configurations. The module provides digital speed/torque setpoint functionality and can be used for both feed-drive (FD) and main-spindle-drive (MSD) applications.

Compatible motor families listed for this control module include Siemens 1FT6, 1FK, 1FE1, 1FW6, 2SP1, 1PH7, 1PM, 1FN and 1LA series, depending on the complete SIMODRIVE system configuration.

This article is an obsolete/discontinued legacy SIMODRIVE component. Siemens’ phase-out documentation includes 6SN1118-0DJ21-0AA2 among the discontinued SIMODRIVE 611 components, while specialist lifecycle data reports an EOP date of 1 April 2015. It is therefore primarily relevant for maintenance, repair and spare-parts support of existing SIMODRIVE 611 installations.