Activating The Protection Function; Axis-Specific Acceleration; Monitoring Status (Gud) - Siemens SINUMERIK 840D sl Function Manual

TE9: Axis pair collision protection
17.3 Startup
17.3.9

Activating the protection function

The protection function is active if the following conditions are met:
• A valid pair of machine axes has been entered in machine data item $MN_...PAIRS[n]
• Machine data item $MN_...PAIRS[n] is active
• Both machine axes have been referenced
If, at the time when the protection function is activated, the distance between the two machine
axes is shorter than the minimum distance for which parameters have been assigned, the
machine operator must retract the machine axes. The protection function prevents the axes
from being traversed toward one another in this case.
17.3.10

Axis-specific acceleration

Parameters are assigned for the accelerations which the protection function uses in order to
decelerate the machine axes in the following axis-specific item of machine data:
MD63514 $MA_CC_PROTECT_ACCEL = <acceleration of the protection function>
17.3.11

Monitoring status (GUD)

The current statuses of the individual protection functions are shown in an item of global user
data. This item of user data is optional and does not have to be defined.
Definition
DEF NCK INT _PROTECT_STATUS[ n ]
where n = maximum number of possible axis pairs (currently, n = 5)
Value
0
1
2
3
674
Meaning
Not active
Activated, but not yet active (machine axes have not yet been referenced)
Active
Decelerate axes
Function Manual, 09/2011, 6FC5397-2BP40-2BA0
Special Functions