42
5.4.8
Calculating the Detection Zone Dimensions for Safeguarding an Area
According to
IEC 61496-3
and
DIN EN 999
, the following formulas apply for calculating
the safety distance and the minimum depth of the detection zone when the direction of
approach runs parallel to the detection zone:
S
=
(K x T) + C
C
MIN
= 850 mm
C
=
1200 mm – 0.4 H
H
MIN
= 15 (d – 50 mm)
H
MAX
=
1000 mm
S
= Safety distance, minimum distance from the danger zone to the point of
detection, to the plane of detection, or to the detection zone, in mm
K
= Approach speed of a person or a person’s body parts
(1600 mm/s), in mm/s
T
= Lag time of the entire system (response time and braking time until
standstill), in s
C
= Safety-related constant to consider entry into the danger zone before the
protective device is triggered, in mm
C
MIN
= Minimum value of the safety-related constant (850 mm), in mm
H
= Height of the scanning plane from the reference point, in mm
H
MIN
= Minimum height of the scanning plane from the reference plane,
in mm
H
MAX
= Minimum height of the scanning plane from the reference plane,
in mm
d
= Resolution of the scanner (70 mm throughout the detection zone), in mm
Summary of Contents for SIMATIC FS600
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