Omron F3SG-SRB Series User Manual page 282

Wiring and Installation
Height of
hazardou
s zone, a
2600
2500
2400
2200
2000
1800
1600
1400
1200
1000
800
600
400
200
0
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 F3SG-SR 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 = 0.008 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 + 0.008 s) + 850 mm
= 966 mm
Since 966 mm is greater than 500 mm, use K = 1,600 mm/s and recalculate it.
S = 1,600 m/s × (0.05 s + 0.008 s) + 850 mm
= 942.8 mm
Compare S = 942.8 mm with the calculation for Detection Zone Orthogonal to Direction of
Approach, 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 942.8 mm
since this is larger than S = 116 mm calculated in the calculation example of n Detection Zone
Orthogonal to Direction of Approach.
For the system with a detection capability larger than 40 mm, the safety distance S is 942.8 mm
since this is the same value as S = 942.8 mm calculated in the calculation example of Detection
Zone Orthogonal to Direction of Approach.
F3SG-SR
254
User's Manual
900 1000 1100 1200
0 0 0 0
400 400 350 300
550 550 550 500
800 750 750 700
950 950 850 850
1100 1100 950 950
1150 1150 1100 1000
1200 1200 1100 1000
1200 1200 1100 1000
1200 1150 1050 950
1150 1050 950 800
1050 950 750 550
900 700 0 0
600 0 0 0
0 0 0 0
Refer to Detection Zone Orthogonal to Direction of Approach under 5-1-2-1. Safety Distance Formulas according
to ISO 13855/EN ISO 13855.
Height of upper edge of detection zone, b
1300 1400 1600
Additional distance to hazardous zone, Cro
0 0 0
300 300 300
450 450 400
650 650 600
800 750 700
850 800 750
900 850 750
900 850 650
850 800 0
750 700 0
500 450 0
0 0 0
0 0 0
0 0 0
0 0 0
1800 2000 2200 2400
0 0 0 0
300 250 150 100
400 300 250 100
550 400 250 0
550 400 0 0
550 0 0 0
450 0 0 0
0 0 0 0
0 0 0 0
0 0 0 0
0 0 0 0
0 0 0 0
0 0 0 0
0 0 0 0
0 0 0 0
2600
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0