Monitoring A Safety Clearance Between Two Axes - Siemens SINUMERIK 828D Function Manual
Synchronized actions
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Also See for SINUMERIK 828D:
- Function manual (1799 pages) ,
- Commissioning manual (1167 pages) ,
- Operating manual (926 pages)
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3.4
Monitoring a safety clearance between two axes
Task
The axes X1 and X2 operate two independently controlled transport devices used to load
and unload workpieces.
To prevent the axes from colliding, a safety clearance must be maintained between them.
If the safety clearance is violated, then axis X2 is decelerated. This interlock is applied until
axis X1 leaves the safety clearance area again.
If axis X1 continues to move towards axis X2, thereby crossing a closer safety barrier, then it
is traversed into a safe position.
NC language
ID=1 WHENEVER $AA_IM[X2] -
$AA_IM[X1] < 30 DO $AA_OVR[X2]=0
ID=2 EVERY $AA_IM[X2] - $AA_IM[X1]
< 15 DO POS[X1]=0
Synchronized actions
Function Manual, 07/2012, 6FC5397-5BP40-3BA0
3.4 Monitoring a safety clearance between two axes
Comment
;
Safety barrier
;
Safe position
Examples
149
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