Siemens SINUMERIK 840D Operator's Manual page 151

4
03.04
Block
search
Calculate
contour
Calculate
block end
Without
calculation
Reset
Ó Siemens AG, 2004. All rights reserved
SINUMERIK 840D/840Di/810D Operator's Guide HMI Advanced (BAD) – 03.04 Edition
Operating sequence
"AUTO" mode is selected in the "Machine" operating area.
The channel is in the reset state.
The program in which the block search is to be performed is selected.
Calls up the "Search position" function.
Position the cursor on the destination block.
The block search is started when you press one of the following three
softkeys:
Block search start with calculation on contour
· When you press "NC Start", a compensatory axis motion is
initiated between the current actual position and the new position
determined by the block search.
· The current position is defined by the program status (all axis
positions, active auxiliary functions) at the beginning of the
selected block, i.e. after a block search the control stops at the
final position of the NC block before the target of the search.
Block search start with calculation at block end point
Block search start without calculation
· If the destination block is found this block becomes the current
block. HMI announces "Target of search found" and displays the
target block in the current block display.
· Action blocks (e.g. collection of auxiliary functions) are output after
NC Start.
· Alarm 10208 is output to indicate that operator interventions such
as Overstore or Mode Change after JOG are permissible.
· When you press NC start the program is started and the process
resumes at this destination block.
Block search can be aborted with Reset.
Machine Operating Area
4.6 Automatic mode
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