21
F3SJ-B
User’s Manual
Chapter3 Installation Conditions
Wiring/Installation
E
Note 1.Upper edge of the detection zone below 900 mm is not included since they do not offer
sufficient protection against circumventing or stepping over.
Note 2.When determining the values of this table, it shall not be interpolated. If the known values a, b
or Cro are between two values of this table, the greater safety distance shall be used.
[Calculation example]
•T: Tm + Ts (s)
•Tm: Machine's response time (s)
•Ts: Response time of the F3SJ-E/B from ON to OFF (s)
• a: Height of machine hazardous zone (mm)
• b: Height of upper edge of detection zone (mm)
When Tm = 0.05 s, Ts = 0.01 s, a = 1,400 mm, b = 1,500 m:
From the table above, Cro = 850 mm. Since b is between 1,400 mm and 1,600 mm, b = 1,400 mm
which has the greater Cro value, shall be used.
S = 2,000 mm/s × (0.05 s + 0.01 s) + 850 mm
= 970 mm
Since 970 mm is greater than 500 mm, use K = 1,600 mm/s and recalculate it.
S = 1,600 m/s × (0.05 s + 0.01 s) + 850 mm
= 946 mm
Compare S = 946 mm with the calculation in "If a person approaches the detection zone of the F3SJ
perpendicularly", and choose the larger value as the safety distance.
For the system with a detection capability of 40 mm max., the safety distance S is 946 mm since this
is larger than S = 120 mm calculated in the calculation example of "If a person approaches the
detection zone of the F3SJ perpendicularly".
For the system with a detection capability larger than 40 mm, the safety distance S is 946 mm since
this is the same value as S = 946 mm calculated in the calculation example of "If a person
approaches the detection zone of the F3SJ perpendicularly".
Height of
hazardou
s zone, a
Height of upper edge of detection zone, b
900 1000 1100 1200 1300 1400 1600 1800 2000 2200 2400 2600
Additional distance to hazardous zone, Cro
2600000000000000
2500 400 400 350 300 300 300 300 300 250 150 100 0
2400 550 550 550 500 450 450 400 400 300 250 100 0
2200 800 750 750 700 650 650 600 550 400 250 0 0
2000 950 950 850 850 800 750 700 550 400 0 0 0
1800110011009509508508007505500000
1600 1150 1150 1100 1000 900 850 750 450 0000
1400 1200 1200 1100 1000 900 850 650 00000
1200 1200 1200 1100 1000 850 800 000000
1000 1200 1150 1050 950 750 700 000000
800 1150 1050 950 800 500 450 000000
600 1050 950 750 550 00000000
4009007000000000000
20060000000000000
0 000000000000
To Next Page
Loading...
Need help?
General
