Data Description8.1 Machine data for SINUMERIK 840D sl05.088-300 © Siemens AG 2008 All Rights ReservedSINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) – 05.2008 Edition36972 $MA_SAFE_VELO_SELECT_INPUT[n]: 0 ... 1MD number Input assignment, SG selectionDefault value: 0 Min. input limit: – Max. input limit: –Change becomes effective after: POWER ON Protection level: 7/2 Unit: –Data type: DWORDSignificance: This machine data defines the two inputs to select SG1, SG2, SG3 or SG4.Configuration: Refer to the coding of the input assignmentn = 1, 0 stand for bit 1, 0 to select from SG1 to SG4Assignment of the input bits to the safely reduced speeds:Bit 1 Bit 0 Selected SG0 0 SG10 1 SG21 0 SG31 1 SG4Special cases, errors,... If the MD bits 31 are set, then the signal is processed inverted (i = 8).corresponds with ... MD 36970: $MA_SAFE_SVSS_DISABLE_INPUT36973 $MA_SAFE_POS_SELECT_INPUTMD number Input assignment, SE selectionDefault value: 0 Min. input limit: – Max. input limit: –Change becomes effective after: POWER ON Protection level: 7/2 Unit: –Data type: DWORDSignificance: This machine data defines the input to select the safe limit position 1 or 2.Configuration: Refer to the coding of the input assignmentSignal means= 0, SE1 is active= 1, SE2 is activeSpecial cases, errors,... If MD bit 31 is set, then the signal is processed inverted (i = 8).corresponds with ... MD 36970: $MA_SAFE_SVSS_DISABLE_INPUT36974 $MA_SAFE_GEAR_SELECT_INPUT[n]: 0 ... 2MD number Input assignment, gearbox ratio selectionDefault value: 0 Min. input limit: – Max. input limit: –Change becomes effective after: POWER ON Protection level: 7/2 Unit: –Data type: DWORDSignificance: Assignment of the input terminals for selecting the gear ratio (gear stage).Configuration: Refer to the coding of the input assignmentn= 2, 1, 0 stand for bit 2, 1, 0 to select gearbox stages 1 to 8Bit 2 Bit 1 Bit 0 active gearbox stage0 0 0 Stage 10 0 1 Stage 20 1 0 Stage 3... ... ... ...1 1 1 Stage 8Special cases, errors,... If the MD bits 31 are set, then the signal is processed inverted (i = 8).corresponds with ... MD 36970: $MA_SAFE_SVSS_DISABLE_INPUT