36 Rockwell Automation Publication 450L-UM001D-EN-P - December 2019
Chapter 4 Safety Function
Table 5 - Nomenclature for Table 6…Table 8
Table 6 - Status of OSSDs for Different Situations in Case of Fixed Teach-in Blanking
Table 7 - Status of OSSDs for Different Reduced Resolution Instances
Symbol Description
Beam not interrupted
Beam interrupted
Beam is activated for Fixed Blanking and not interrupted
Beam is activated for Fixed Blanking and interrupted
Case 1 2345678
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 For case 3 and case 4 in Table 6, the OSSDs stay on because of the
tolerance -1.
Case 1 23456789101112
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 ONONOFFOFFONONONONOFFOFFOFF
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