Machine data
2.3 Channel-specific machine data
Parameter Manual
158
Operating Instructions, 08/2013, 6FC5397-8EP40-0BA0
0 / 1: A T0 is automatically generated if a disabled tool is in the spindle
at NC start
1 / 1: No statement
Bit 5: Reserved
Bit 6=0: Standard: If T0 or D0, only T0 or D0 is exactly programmed.
This means that MD20270 $MC_CUTTING_EDGE_DEFAULT and MD20272
$MC_SUMCORR_DEFAULT define, with the programming of T0 the value of D, DL.
For example, MD20270 $MC_CUTTING_EDGE_DEFAULT=1
MD20272 $MC_SUMCORR_DEFAULT=2
MD22550 $MC_TOOL_CHANGE_MODE=0 (tool change with T programming)
N10 T0; T no. 0 has active number D1 and DL=2 which results in offset zero.
If bit 2 is also set:
Programming of
a) T0; for tool deselection
b) D0; for offset deselection
generates an alarm, if at least one of the machine data
MD20270 $MC_CUTTING_EDGE_DEFAULT
MD20272 $MC_SUMCORR_DEFAULT
is not equal to zero (T0 D0 DL=0 is the correct programming).
or MD20272 $MC_SUMCORR_DEFAULT is not equal to zero (D0 DL=0 is the correct
programming).
Bit 6=1: controls the NCK response when programming (x, y, z all greater than
zero), if at least one of
MD20270 $MC_CUTTING_EDGE_DEFAULT
MD20272 $MC_SUMCORR_DEFAULT
is not equal to zero.
a) Tx Dy -> T0
T0 is automatically programmed in NCK D0 or D0 DL=0; i.e. values not equal to
zero of MD20270 $MC_CUTTING_EDGE_DEFAULT, MD20272 $MC_SUMCORR_DEFAULT are
treated as value equal to zero.
b) Tx Dy -> T0 Dy, or T0 DL =z, or T0 Dy DL=z, or T0 D0 DL=z explicitly pro-
grammed values of D, DL are not influenced.
c) Dy DL=z -> D0
With D0, DL=0 is automatically programmed in the NCK; i.e. values in MD20272
$MC_SUMCORR_DEFAULT unequal to zero are treated as values equal to zero.
d) Dy DL=z -> D0 DL=z
Explicitly programmed values of DL are not influenced.
If bit 2 is also set:
Only T0 / D0 have to be programmed for tool/offset deselection, and this does
not generate an alarm.
The statements relating to MD20272 $MC_SUMCORR_DEFAULT or DL are only valid
if the total offset function is active
(see MD18080 $MN_MM_TOOL_MANAGEMENT_MASK, bit 8).
Bit 7=0: When Tx is programmed, a check is made to see whether a tool with T
number x is known in the TO unit of the channel. If not, the program is
stopped in this block with alarm 17190.
Bit 7=1: only if the tool basic functionality is active
(MD20310 $MC_TOOL_MANAGEMENT_MASK, bit 0,1=0)
and (MD18102 $MN_MM_TYPE_OF_CUTTING_EDGE=0):
When Tx is programmed, an unknown Tx is intially ignored, and the alarm
relating to the preparation command (Tx) is also ignored until the D selec-
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