Protection Area
© Panasonic Industrial Devices SUNX Co., Ltd. 2017
22
[For use in the USA (per ANSI/RIA 15.06)]
●
Equation 2
D
S =
K × T + D
pf
D
S
: Safety distance (mm)
Minimum required distance between the sensing area plane and the nearest dan-
gerous part of the machine
K: Intrusion speed {OSHA-recommended value is 63 (inch/sec.) [≈ 1,600 (mm/sec.)] }
When determining K, consider all possible factors including the physical ability of
operators.
T: Maximum response time (sec.) for dangerous operation of the machine to halt or for
dangerous operation in a machine cycle to be completed.
When determining T, consider all possible factors.
For details, refer to “ANSI B11.19”.
D
pf
: Additional distance calculated from the minimum sensing object of the device (mm)
SF4D-F□
: D
pf
= 23.8mm
SF4D-H□
: D
pf
= 61.2mm
SF4D-A□
: D
pf
= 129.2mm
D
pf
= 3.4 × (d − 0.275) (inches)
≈ 3.4 × (d − 7) (mm)
d: Diameter of minimum sensing object 0.552 (inches) ≈ 14 (mm)
SF4D-F□
Diameter of minimum sensing object 0.985 (inches) ≈ 25 (mm)
SF4D-H□
Diameter of minimum sensing object 1.772 (inches) ≈ 45 (mm)
SF4D-A□
<Reference>
● When the floating blanking function is used, the minimum sensing object becomes larger.
According to ANSI B11.19, D
pf
= 900mm (3ft) when d > 63.5mm (2.5 inches).
●
Calculated using 1 (inch) = 25.4 (mm).
Содержание WUME-SF4D-4
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