Siemens SINUMERIK 840D sl Function Manual

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Detailed Description2.5 ProgrammingBasic logic functions: Spindles (S1)Function Manual, 11/2006, 6FC5397-0BP10-2BA0 75Spindle commandsThe following basic logic functions can be specified for the spindle:Basic logic functions: Spindle commands:Motion specification:Spindle stopSpindle start clockwise rotationSpindle start counterclockwise rotationSelect gear stepSpindle positioningIndependently of a running part program:Input from the PLC via axialVDI interface signals DB31, ... DBB30SpeedMD35035 $MA_SPIND_FUNCTION_MASK Bit 4 = 1When movement starts the speedis read from setting data:SD43200 $SA_SPIND_S.Speed specifications from part programor FC18 are programmed in setting data:SD43200 $SA_SPIND_S.Setpoint speed:MD35035 $MA_SPIND_FUNCTION_MASK Bit 5 = 1The content from setting data:SD43200 $SA_SPIND_Sis used as the setpoint speed.You can use the JOG keys to operate thespindleat the speed defined in setting data:SD43200 $SA_SPIND_S.Constant cutting speed:MD35035 $MA_SPIND_FUNCTION_MASK Bit 8 = 1Read from setting data:SD43202 $SA_SPIND_CONSTCUT_S.Specifications for the constant cuttingspeed from part program, FC18 andsynchronized actions are programmed insetting data:SD43200 $SA_SPIND_S.Notes on machine data MD35035 $MA_SPIND_FUNCTION_MASK:For bit 4 and bit 8, the following also applies:• Programmed S values that are not programmed speed values are not written to thecorresponding setting data.This includes S values in the case of a rotation-related dwell time (G4).• If this conditions are met, spindle jobs will be accepted via the DBB30 interface(acceptance status).