SICK M4000 Advanced

Chapter 4 Operating Instructions
M4000 Adv., Adv. A/P, Area
34 © SICK AG • Industrial Safety Systems • Germany • All rights reserved 8010797/YT72/2016-02-19
Subject to change without notice
Muting
4.2.5 Muting with four sensors (two sensor pairs), serial placement
In the example, the material moves from left to right. As soon as the muting sensors
A1 & A2 are activated, the protection provided by the protective device (ESPE) is muted.
The protection remains muted until one of the sensors in 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. 22: Muting with two
serial sensor pairs
Tab.
10
:
Conditions for
muting with four sensors,
serial placement
ESPE
L
2
L
1
L
3
Hazardous area
A1
A2
B1
B2