SICK UE410-MU - Placement of Muting Sensors

Chapter 4 Operating instructions
Flexi Classic
70 © SICK AG • Industrial Safety Systems • Germany • All rights reserved 8011509/YPP0/2015-10-26
Subject to change without notice
Special applications and
functions
4.7 Placement of muting sensors
Pay attention to the following notes on the placement of the muting sensors!
= Always position the muting sensors such that only the material is detected and not the
means of transport (pallet or vehicle).
= Always position the muting sensors such that material can pass unhindered, but people
are reliably detected.
= Always position the muting sensors such that, on the detection of the material 0, a
minimum distance to the light beams on the ESPE 1 is maintained.
The minimum distance provides the processing time necessary until muting is activated.
How to calculate the minimum distance:
S ″ v × 61 ms
Where …
S = minimum distance (mm)
v = velocity of the material (e.g. of the conveyor) (m/s)
= Use optical sensors with background suppression. These detect material only up to a
specific distance. Objects that are further away than the material to be detected are not
detected.

WARNING
Fig.
24
:
Detection of material
during muting
Note
Fig.
25
:
Minimum distance,
material detection to the
ESPE on muting
Fig.
26
:
Principle of operation
of sensors with background
suppression
Material
Muting sensor
Means of transport
Transport level
v
S
1
0
Hazardous area
ESPE
Detection zone
Background
Sensor
Material is
detected
Material is not
detected