6
F3SG-SR-K
Quick Installation Manual
6-3. Safety Distance
Safety Distance Formulas according to ISO 13855/EN ISO 13855
■
Detection Zone Orthogonal to Direction of Approach
S = K x T + C . . . Formula (1)
• S: Safety distance
• K: Approach speed to the detection zone
• T: Total response time of the machine and the F3SG-SR
• C: Additional distance calculated by the detection capability
(or object resolution) of the F3SG-SR
<Calculation Example for Systems with a Detection Capability of
40 mm or Less>
Use K = 2,000 mm/s and C = 8 x (d - 14 mm) in formula (1)
for the calculation.
S = 2,000 mm/s x (Tm + Ts) + 8 x (d - 14 mm)
• S = Safety distance (mm)
• Tm = Machine's response time (s)
• Ts = Response time of the F3SG-SR from ON to OFF (s)
• d = Detection capability (or object resolution) of the F3SG-SR (mm)
<Calculation Example for Systems with Larger Detection Capability than 40mm>
Use K = 1,600 mm/s and C = 850 mm in formula (1) for calculation.
S = 1,600 mm/s x (Tm + Ts) + 850 . . . Formula (4)
• S = Safety distance (mm)
• Tm = Machine's response time (s)
• Ts = Response time of the F3SG-SR from ON to OFF (s)
Please refer to the
F3SG-SR/PG Series User's Manual
for calculation of following safety distance.
- Possible Circumventing by Reaching Over the Detection Zone
- Detection Zone Parallel to Direction of Approach
- Safety Distance Formulas according to ANSI B11.19
Hazard
Safety distance (S)
Check
position
Step1
Mount
Step2
Mounting
Wiring
Operation check
