TRAINING UNIT SINUMERIK 840D SL THE TRAINING UNIT SINUMERIK 840D SI FOR TRAINING AND PROMOTION CONTAINS A PREWIRED SINUMERIK 840D SL (NCU720 WITH CF-CARD SW BASIC VERSION) 2 SINAMICS-DRIVES AND 1FK7 SERVOMOTORS WITH DRIVE-CLIQ-IF. FOR THE OPERATION IS THE TRAINING UNIT SINUMERIK 840D SL OP NECESSARY (MLFB 6ZB2410-0BB0 0).