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Supplementary Conditions - Siemens SINUMERIK 840D sl Function Manual

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V1: Feedrates

17.5 Supplementary conditions

Reset
With reset, the last programmed value remains for the part program specifications. The settings
for main-run interpolations do not change.
Block search
The last end-of-motion criterion programmed for an axis is collected and output in an action
block. The last block with a programmed end-of-motion criterion that was processed in the
search run serves as a container for all programmed end-of-motion criteria for all axes.
17.5
Supplementary conditions
Unit of measurement
The valid unit of measurement of the feedrates depends on the set measuring system and the
entered axis type:
MD10240 $MN_SCALING_SYSTEM_IS_METRIC (basic system of the control metric/inch)
MD30300 $MA_IS_ROT_AX (rotary or linear axis)
Initial setting for the feedrate type
The initial setting for the feedrate type is specified in the machine data:
MD20150 $MC_GCODE_RESET_VALUES (initial setting of the G groups)
The default setting is G94.
The initial setting of the feedrate type is only displayed when a part program is started.
Effectiveness after reset
Whether the last programmed F, FA, OVR, OVRA values are also active after reset depends
on the setting in the machine data:
MD22410 $MC_F_VALUES_ACTIVE_AFTER_RESET (F function is active even after reset)
Spindle positioning
With active G95, G96, G961, G97, G971, G33, G34, G35 spindle positioning should not be
performed, because the derived path feedrate following spindle positioning = 0. If the
programmed axis position has not then been reached, the block cannot be completed.
1358
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
Basic Functions

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