Tool Withdrawal After Power On With Orientation Transformation - Siemens SINUMERIK 840D sl Function Manual

K1: Mode group, channel, program operation, reset response
9.16 System settings for power-up, RESET / part program end and part program start
Transformation remains with reset / part program start:
● MD20110, bit 0 = 1
● MD20110, bit 7 = 1
● MD20112 = 0
Tool length compensation is retained after reset / part program start:
● MD20110, bit 4 = 1
● MD20110, bit 6 = 1
● MD20112 = 0
Active level (bit 4) and settable frame (bit 5) remain active after reset and are reset on part
program start:
● MD20110, bit 4 = 1
● MD20110, bit 5 = 1
● MD20112, bit 4 = 1
● MD20112, bit 5 = 1
Note
MD20110/MD20112, bit 5 and bit 6
If MD20110/MD20112 are parameterized so that tool length compensation or a frame is
active on a part program start in the automatic or MDI mode, the first programming of the
axes must use absolute measurements (because of the traversing of the offset).
Exception: With MD42442/MD42440 the offsetting process for G91 is suppressed.
9.16.1

Tool withdrawal after POWER ON with orientation transformation

Function
If a part program with a machining operation with tool orientation is aborted due to a power
failure or reset, it is possible to select the previously active transformation and generate a
frame in the direction of the tool axis after the control has run up (power on). The tool can then
be retracted in JOG mode by means of a retraction movement towards the tool axis.
Requirement
The active measuring systems must have a machine reference for all the machine axes
involved in the transformation. See Section "Automatic restoration of the machine reference
(Page 1190)".
614
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
Basic Functions