SICK M4000 Advanced

Chapter 4 Operating Instructions
M4000 Adv., Adv. A/P, Area
36 © SICK AG • Industrial Safety Systems • Germany • All rights reserved 8010797/YT72/2016-02-19
Subject to change without notice
Muting
4.2.6 Muting with four sensors (two sensor pairs), parallel placement
In the example, the material moves from left to right. As soon as the first muting sensor
pair A1 & A2 is activated, the protection provided by the protective device (ESPE) is muted.
The protection remains muted until the muting sensor pair B1 & B2 is clear again.
The following requirements must be met:
Condition Description
A1 & A2
(or B1 & B2)
Brief, to the start of the muting. The first sensor pair is acti-
vated as a function of the direction of transport of the material.
A1 & A2 & B1 & B2 Brief, for accepting the muting condition.
B1 & B2
(or A1 & A2)
Muting applies as long as this condition is met. The second
sensor pair is activated as a function of the direction of trans-
port of the material.
Fig. 23: Muting with two
parallel sensor pairs
Tab.
11
:
Conditions for
muting with four sensors,
parallel placement
A1
ESP
E
L
1
L
3
A2
Hazardous area
B1
B2