b
Position muting sensors on the side of the hazardous area.
NOTE
Prevent mutual sensor interference.
Functionality
The muting sensors (A1 and A2) are arranged serially in the hazardous area and detect
material before it passes through the ESPE
"
.
Once muting sensors A1 and A2 are actuated, muting is active.
A1
L
1
"
!
L
2
A2
!
Hazardous area
"
ESPE
The following is true for exit monitoring:
•
Override is active. The number of override statuses is limited to 5.
•
The muting end by ESPE function is active
•
Concurrence monitoring is configured
•
A total muting time is active
•
Exit monitoring is terminated when the ESPE is free for longer than 0.5 s and a
muting end delay of 0.2 s has elapsed
•
If a muting sensor is clear, sensor gap monitoring will expire, meaning that a mut‐
ing sensor may not be clear longer than 0.5 s
•
If the sensor gap monitoring (muting sensor) of 0.5 s has been exceeded, muting
ends after a muting hold time of 4 s
Calculating minimum distance
L
1
≥ v × 0.060 s
v × t > L
1
+ L
2
The following rules apply:
•
L
1
< 200 mm; minimum distance between the beams of the ESPE and the detec‐
tion of the muting sensors in m
•
v = Speed of the material (e.g. of the conveyor belt) in m/s
•
t = Muting hold time in s (with activated muting end by ESPE function)
•
L
2
= Length of the material in conveying direction in m
Further topics
•
PROJECT PLANNING
4
8024802/2020-07-17 | SICK
O P E R A T I N G I N S T R U C T I O N S | deTem4 LT Muting A/P
27
Subject to change without notice