Rockwell Automation Allen-Bradley GuardShield 450L-B4FNxYD

Rockwell Automation Publication 450L-UM001D-EN-P - December 2019 53
Safety Function Chapter 4
The standard response time is dependent on the following:
• Light curtain type (B or E)
• Resolution (finger or hand)
• Protective height
The standard response time for the 450L-B is shown in Ta b le 15
. The standard
response time for the 450L-E is shown in Table 16
. In these tables, Tr = Ts.
Table 15 - Standard Response Time for 450L-B
Protective Height
[mm (in.)]
Response Time (T
s
)
Finger [14 mm (0.55 in.)] Resolution [ms]
Response Time (T
s
)
Hand [30 mm (1.18 in.)] Resolution [ms]
150 (5.91) 14 14
300 (11.81) 14 14
450 (17.72) 14 14
600 (23.62) 14 14
750 (29.53) 14 14
900 (35.43) 14 14
1050 (41.34) 16 14
1200 (47.24) 17 14
1350 (53.15) 19 14
1500 (59.06) 20 14
1650 (64.96) 22 14
1800 (70.87) 23 14
1950 (76.77) 25 15
Table 16 - Standard Response Time for 450L-E
Protective Height
[mm (in.)]
Response Time (Ts)
Finger [14 mm (0.55 in.)] Resolution [ms]
Response Time (Ts)
Hand [30 mm (1.18 in.)] Resolution [ms]
150 (5.91) 9 8
300 (11.81) 10 9
450 (17.72) 11 9
600 (23.62) 12 10
750 (29.53) 14 11
900 (35.43) 14 11
1050 (41.34) 14 12
1200 (47.24) 15 12
1350 (53.15) 16 13
1500 (59.06) 17 13
1650 (64.96) 18 13
1800 (70.87) 19 13
1950 (76.77) 20 13