Operating Instructions Chapter 4
M4000 Adv., Adv. A/P, Area
8010797/YT72/2016-02-19 © SICK AG • Industrial Safety Systems • Germany • All rights reserved 27
Subject to change without notice
Muting
How to calculate the distance:
3
2
res
d
1
LLtv
0.004
2
t
tvL
+>×
++×
W
here …
L
1
= Minimum distance between the light beams on the ESPE and the detection by the
muting sensors [m]
v = Velocity of the material (e.g. of the conveyor belt) [m/s]
t
d
= Input delay of the UE403 or the sens:Control device [s]
(see the operating instructions of the UE403 or sens:Control device)
t
r
es
= Response time M4000 [s]
(see section 13.1 “Data sheet” on page 115)
t = Total muting time set [s]
(see section 6.3.2 “Monitoring of the total muting time” on page 51)
L
2
= Distance between the two sensor detection lines (sensors activated/sensors clear)
[m]
L
3
= Length of the material on the conveyor [m]
The material can flow in both directions.
Place the cross-over point for the muting sensors exactly in the path of the ESPE’s
light beams. If this is not possible, place the cross-over point in the direction of the
hazardous area (see Fig. 14).
This placement is suitable for through-beam photoelectric switches and photoelectric
reflex switches.
You can usefully increase the protection against manipulation and safety using the
following configurable functions:
– Sensor test, see page 50 ff.
– Concurrence monitoring, see page 51 ff.
– Monitoring of the total muting time, see page 51 ff.
– End of muting by ESPE, see page 53 ff.
Notes
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