Operating Instructions Chapter 4
M4000 Adv., Adv. A/P, Area
8010797/YT72/2016-02-19 © SICK AG • Industrial Safety Systems • Germany • All rights reserved 37
Subject to change without notice
Muting
How to calculate the distance:
31
31
res
d1
LL
LLtv
0.004
2
t
t2vL
<
+>×
++××
Where …
L
1
= Distance between the inner sensors (Placement symmetrical to the light path
between sender and receiver) [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
res
= Response time of the 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
3
= Length of the material on the conveyor [m]
The material can flow in both directions.
With the parallel placement, the width of the object allowed is also checked due to the
position of the muting sensors. The objects must always fit in an identical width to suit
the muting sensors.
The direction can also be defined as fixed:
– Using the additional signal C1: The signal C1 must always be activated, before both
muting sensors in the first sensor pair (e.g. A1 and A2) are active (see section
“Additional signal C1” on page 49).
– Using the Direction detection function that can be configured in software (page 55ff.).
In this placement, optical proximity sensors and all types on non-optical sensors can be
used. Use sensors and proximity sensors with background suppression.
Avoid mutual interference between the sensors.
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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