SMARTSCAN 072-150, Руководство пользователя

Страница: 47 / 55

7 0 0 0 S E R I E S
Normal approach
To calculate separation distance (S)
Detection Capability
(mm)
Use a formula below when
(t1+t2) is less than
0.185 secs
Use a formula below when
(t1+t2) is greater than
0.185 secs
30 2000(t1+t2)+128 1600(t1+t2)+128
70 1600(t1+t2)+850 1600(t1+t2)+850
2 or 3 beam light
curtains
1600(t1+t2)+850 1600(t1+t2)+850
Example for normal approach
Using a light curtain with a 30mm detection capability
Where the response time of the safety system (t1) = 0.025 secs
Where the stopping time of the machine (t2) = 0.05 secs
Therefore (t1+t2) = 0.075 secs
S = 2000 x 0.075 + 128
S = 278mm
APPENDIX 1 45