Siemens SINUMERIK 828D Function Manual page 829

P1: Transverse axes
12.2 Defining a geometry axis as transverse axis
Channel-specific basic position after power up, RESET
The channel-specific basic position after power up or RESET or end of parts program of the G group 29:
DIAMON, DIAM90, DIAMOF, DIAMCYCOF define the
MD20150 $MC_GCODE_RESET_VALUE
and independently of
MD20110 $MC_RESET_MODE_MASK / bit0 the MD20152 $MC_GCODE_RESET_MODE.
The user can set the respective desired status via an event-controlled program call (prog-event).
If G96/G961/G962 is the basic position after power up, a transverse axis must be defined using MD20100
$MC_DIAMETER_AX_DEF, otherwise the alarm message 10870 is output.
Reference axis for G96/G961/G962 retained:
MD20110 $MC_RESET_MODE_MASK, bit 18=1 for RESET or end of parts program
MD20112 $MC_START_MODE_MASK, bit 18=1 for start of parts program
A reference axis for G96/G961/G962 can also be assigned without application of a transverse axis in MD20100
via SCC[AX]. For this scenario, the constant cutting speed cannot be activated with G96. For additional
information, see:
Reference
Programming Manual Fundamentals, Feedrate Control and Spindle Motion
"Constant Cutting Speed (G96, G961, G962, G97, G971, LIMS, ACC[AX])"
Basic Functions
829
Function Manual, 09/2011, 6FC5397-0BP40-2BA0