Chapter 4 Operating Instructions
M4000 Adv., Adv. A/P, Area
30 © SICK AG • Industrial Safety Systems • Germany • All rights reserved 8010797/YT72/2016-02-19
Subject to change without notice
Muting
4.2.3 Muting using two sensors, serial placement (one sensor pair in the hazardous
a
rea), exit monitoring with End of muting by ESPE
The Exit monitoring function is supported by M4000 systems with firmware V1.50.
In the case of the Exit monitoring function the muting sensors are at the side of the haz-
ardous area. The material moves out of the hazardous area. As soon as all muting sensors
(A1 and A2) are actuated, the protection provided by the protective device (ESPE) is
bypassed and this situation remains in force until the configured muting hold time
(0.5 s … 4 s) has elapsed or the protective device becomes clear. The muting hold time
starts as soon as one of the muting sensors becomes clear.
The following requirements must be met:
Condition Description
A1 & A2 Muting starts as soon as this condition is met.
A1 & ESPE or
A2 & ESPE or ESPE
Muting applies as long as this condition is met. The muting
hold time counts down.
Note
Fig. 20: Muting with two
sensors, serial placement
with two sensors, serial
placement
1
2
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