SMARTSCAN 072-150, Руководство пользователя

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7 0 0 0 S E R I E S
Parallel approach
To calculate separation distance (S)
S = 1600(t1 + t2) + (1200 - (0.4 x H))
The detection capability of a parallel approach light curtain determines the lowest
permissible mounting height between the curtain and reference plane (H) e.g. floor.
Refer to the guidance below
Detection capability
(mm)
Lowest allowable height of the light curtain above the
reference plane (H)
e.g. floor
30 (H) = Any height above the reference plane providing
safety can be maintained
70 (H) = >450mm
Example for parallel approach
The light curtain to be mounted 750mm from the floor (H)
Using a light curtain with a 70mm detection capability
Where the response time of the safety system (t1) = 0.025 secs]
Where the stop time of the machine (t2) = 0.08 secs
Therefore (t1 + t2) = 0.105 secs
S = 1600 x 0.105 + (1200 - (0.4 x 750))
S = 168 + 1200 - 300
S = 1068mm
APPENDIX 1 47