Rockwell Automation Publication 450L-UM001F-EN-P - March 2022
33
Chapter 4 Safety Function
IMPORTANT
With reduced resolution activated, protective field holes that are left
and/or right of the protective field can occur. This occurrence means at
times when no object is blocking the protective field, there is a danger
that the operator can reach through the protective field without
deactivating the machine.
Table 5 - Nomenclature for
Symbol Description
Beam not interrupted
Beam interrupted
Beam is activated for Fixed Blanking and not interrupted
Beam is activated for Fixed Blanking and interrupted
Table 6 - Status of OSSDs for Different Situations in Case of Fixed Teach-in Blanking
Case
1
2
3
4
5
6
7
8
IR-Beam
No Blanking
Fixed Teach-in Blanking
N
N+1
N+2
N+3
N+4
N+5
N+6
Status OSSDs
OFF
ON
ON
ON
OFF
OFF
ON
OFF
IMPORTANT
, the OSSDs stay on because of the
tolerance -1.
Table 7 - Status of OSSDs for Different Reduced Resolution Instances
Case
1
2
3
4
5
6
7
8
9
10
11
12
IR-
Beam
Reduced
Resolution
Deactivated
Reduced Resolution
1 Beam Active
Reduced Resolution
2 Beams Active
N
N+1
N+2
N+3
N+4
N+5
N+6
Status
OSSDs
OFF
ON
ON
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
Table 8 - Status of OSSDs for Different Cases of Reduced Resolution in Combination with Fixed
Teach in Blanking
Case
1
2
3
4
5
6
7
8
9
10
11
12
IR-
Beam
Reduced
Resolution
Deactivated
Reduced Resolution 1 Beam
and Teach-in Fixed Blanking
Reduced Resolution 2 Beams
and Teach-in Fixed Blanking
N
N+1
N+2
