Training rack for SINUMERIK 840D sl The training rack for SINUMERIK 840D sl is suitable for practice-oriented training of commissioning, operation, and programming, as well as of maintenance tasks. Components: NCU 720.3B PN with CF card Export version current software For the software, a test rack license must be separately requested by the user of the rack NX10.3, ALM 16KW, AIM 16 KW, PCU50.5 P, TCU, MCP483C IE; Motor Module PROFIsafe I/O