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LBK System BUS | Instruction manual v1.0 SEP 2020 | LBK-System-BUS_instructions_en v1.0 | © 2020 Inxpect SpA
Example 2
l
Machinery stopping time = 0.2 s
l
Sensor installation height (H) = 800 mm
l
Sensor inclination (α) = -20°
T
= 0.1 s + 0.2 s =
0.3 s
C
h
= 1200 - 0.4 * 800 =
880 mm
C
α
= (-(-20))* 16 =
320 mm
S
= 1600 *
0.3
+
880
+
320
=
1680 mm
5.3.3 Sensor height > 1 m
To calculate the depth of the dangerous area (S) for sensors with installation heights greater than 1 m, use the
following formula:
Where:
Variable
Description
Value
Measurement
unit
K
Maximum dangerous area access speed
1600
mm/s
T
Total system stopping time (LBK System
BUS + machinery)
0.1 + Machinery stopping time
(calculated in accordance with ISO
13855:2010 standard)
s
C
h
Variable that takes into account the sensor
installation height (h) according to standard
ISO 13855:2010
850
mm
Example 1
l
Machinery stopping time = 0.5 s
T
= 0.1 s + 0.5 s =
0.6 s
S
= 1600 *
0.6
+
850
=
1810 mm
5.4 Calculation of position for sensor height ≤ 1 m
5.4.1 Introduction
The formulas for calculating the optimum position of the sensor for sensors with installation heights less than
or equal to 1 m are reported as follows.
WARNING! Define the optimum sensor position based on the risk assessment requirements.
5.4.2 Overview of possible installation configurations
The configurations with possible heights (
h
) and inclinations (
α
) are presented as follows:
l
1
= Configuration 1: the field of view of the sensor never intersects the ground
l
2
= Configuration 2: the upper portion of the field of view of the sensor never intersects the ground
l
3
= Configuration 3: the upper portion and the bottom portion of the field of view always intersect the
ground
l
X
= Configuration not possible
WARNING! With configurations not listed in these tables or marked with an “x”, safety functions
are not guaranteed.
5. Sensor position
Содержание LBK System BUS
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