Siemens SINUMERIK 802S Technical Manual page 142

Technical Appendix
6-48
MD14512[16]
Bit 0=0 PLC normal operation (default)
Bit 0=1 Start-up mode. Ready signal T72 from infeed module is not
verified by PLC
Bit 1=0 spindle disabled, if no command & stopped & Spindle Stop
key (default)
Bit 1=1 spindle is disabled automatically if no command & is
stopped
Bit 2=0 analog spindle with +/-10V setpoint (default)
Bit 2=1 analog spindle with 0~10V setpoint
Bit 3=0 MCP without spindle override switch (default)
Bit 3=1 MCP with spindle override switch
Bit 6/5/4=0 Rotation monitoring not active (default)
Bit 6/5/4=1 Rotation monitoring activate (only for 802S)
MD14512[17]
Bit 2/1/0=0 Reference point approaching with override active (default)
Bit 2/1/0=1 Reference point approaching without override active
Bit 6/5/4=0 Z/Y/X motor without brakes (default)
Bit 6/5/4=1 Z/Y/X motor with brake (note: only one motor is permitted
with brake)
MD14512[18]
Bit 1=0 input #OPTM for SBR40 is disabled (default)
Bit 1=1 Input #OPTM for SBR40 is enabled. I.e. #OPTM=1 – motor
brake be released
Bit 2=0 no lubrication at first power on (default)
Bit 2=1 Once lubrication at first power on
Bit 6/5/4=0 Z/Y/X has two limit switch (default) (in case Bit 7=0)
Bit 6/5/4=1 Z/Y/X has only one limit switch (in case Bit 7=0)
Bit 7=0 Hardware limit using PLC solution (default) (Bit 6/5/4 is
effective)
Bit 7=1 Hardware limit using hardware solution (Emergency Stop
Chain)
SINUMERIK 802S base line
Start-Up