Commissioning; General; Overview; Structure Of The System Variables - Siemens SINUMERIK 840D sl Function Manual

AUTOMATIC modes: Incomplete protection area data for collision
When a large number of protection areas have been configured, in exceptional cases, the
following behavior can occur:
● Several protection areas have approached one another, down to the collision tolerance
● Only two protection areas are specified in Alarm 26260 "Collision two protection areas" that
is displayed.
● The collision of the other protection areas is only displayed when manually traversing the
axes after changing into the JOG mode.
7.2

Commissioning

7.2.1

General

7.2.1.1

Overview

The commissioning of the "Collision avoidance" function is performed using:
● Machine data
– Specification of the quantity structure
– Specification of general properties of the collision pairs
● System variables
– Parameterization of the collision pairs and their properties
7.2.1.2

Structure of the system variables

The system variables are structured according to the following scheme:
$NP_<name>[<index_1>,<index_2>]
Note
Index_2 is not available for all system variables.
General
The system variables to describe the protection areas have the following properties:
● Prefix: $NP_, (N for NC, P for protection).
● They can be read and written via NC programs.
● They can be stored in archives and loaded to the NC again.
Special functions
Function Manual, 01/2015, 6FC5397-2BP40-5BA2
K9: Collision avoidance - only 840D sl
7.2 Commissioning
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