Calculating minimum distance with use of a muting connector:
•
L
1
≥ v × 0.122 s
The following rules apply:
•
L
1
= Minimum distance between the beams of the ESPE and the detection of the
muting sensors in m
•
v = Speed of the material (e.g. material on a conveyor belt in m/s)
Complementary information
Cross-muting can be combined with partial blanking.
A muting signal can be shifted by the extension connection on the system connection.
Further topics
•
•
•
"Sensor gap monitoring", page 45
•
"Cross-circuit monitoring", page 46
•
"End of muting by ESPE", page 44
4.3.6.2.2
Exit monitoring
Overview
Exit monitoring checks that only material moves out of the hazardous area, while
persons cannot enter the dangerous area.
Arrangement of the muting sensors
The muting sensors must be arranged so that the entire lengths of both the material
and the means of transport are detected by the sensors or the ESPE. There may not be
any detectable gaps, otherwise muting is ended too soon (reduced system availability).
b
Position muting sensors on the side of the hazardous area.
NOTE
Prevent mutual sensor interference.
The signals of the muting sensors are on the extension connection. Alternatively, the
input of a muting signal can be moved to the system connection.
Principle of operation
The muting sensors (A1 and A2) are arranged serially in the hazardous area and detect
material before it passes through the ESPE
2
.
Once muting sensors A1 and A2 are actuated, muting is active.
PROJECT PLANNING
4
8021645/1EB0/2022-04-28 | SICK
O P E R A T I N G I N S T R U C T I O N S | deTec4
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Subject to change without notice