Panasonic SF4C Series Instruction Manual page 15

<Calculation example>
● Calculation example 1: For use in Europe
(OFF response time: 7ms or less, minimum sensing object diameter: 25mm)
First, calculate with K = 2,000.
S = K × T + C
= K × (T
m
= 2,000 × (T
= 2,000 × T
= 2,000 × T
= 2,000 × T
If the result is:
1) In case S < 100 (mm)
Safety distance S is taken as 100 (mm)
2) In case 100 ≤ S ≤ 500 (mm)
Safety distance S is taken as 2,000 × T
3) In case S > 500 (mm)
S = K'× (T
m
= 1,600 × (T
= 1,600 × T
= 1,600 × T
= 1,600 × T
then, calculate again.
If the result is:
4) In case S ≤ 500 (mm)
Safety distance S is taken as 500 (mm)
5) In case S > 500 (mm)
Safety distance S is taken as 1,600 × T
In case this device is installed in a system with a maximum halting time 0.1 (sec.)
S = 2,000 × T
= 2,000 × 0.1 + 102
= 302
Since this value matches with the case 2) above, S is 302 (mm).
In case this device is installed in a system with a maximum halting time 0.4 (sec.)
S = 2,000 × T
= 2,000 × 0.4 + 102
= 902
Since this value matches with the case 3) above,
S = 1,600 × T
= 1,600 × 0.4 + 99.2
= 739.2
Since this value matches with the case 5) above, S is 739.2 (mm).
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+ T ) + 8 × (d - 14)
SF4C
+ 0.007) + 8 × (25 - 14)
m
+ 2,000 × 0.007 + 8 × 11
m
+ 14 + 88
m
+ 102
m
+ T ) + 8 × (d - 14)
SF4C
+ 0.007) + 8 × (25 - 14)
m
+ 1,600 × 0.007 + 8 × 11
m
+ 11.2 + 88
m
+ 99.2
m
+ 102
m
+ 102
m
+ 99.2
m
+ 102 (mm)
m
+ 99.2 (mm)
m
Protection Area
15