Chapter 6 Operating Instructions
M4000 Adv., Adv. A/P, Area
56 © SICK AG • Industrial Safety Systems • Germany • All rights reserved 8010797/YT72/2016-02-19
Subject to change without notice
Configurable muting functions
6.6 Partial blanking
M
uting mutes the ESPE on the presence of a valid muting condition. With the Partial blank-
ing function, safety can be increased by only blanking part of the ESPE on the presence of
a valid muting condition. One or more light beams remain permanently active.
The part of the ESPE configured by the partial blanking function is blanked on the pre-
sence of a valid muting condition (e.g. for a specific object height). The rest of the light
beams remain active; an interruption to the light beams in the active area always results in
the shutdown of the OSSDs.
The area to be blanked is configured by entering the start of the blanking (see Fig. 32: first
beam adjacent to display or first beam remote from display ) and the number of
blanked beams.
Even if partial blanking is configured, the active light beams can be muted by an over-
ride.
Monitoring of total muting time is also active during partial blanking (see section 6.3.2
on page 51).
The partial blanking is not signalled by the muting lamp.
Device symbol M4000 Advanced (receiver), context menu Open device window, para-
meter node Muting configuration and parameter node Partial blanking.
Fig. 31: Principle of operation
of the partial blanking
function
Fig. 32: Start of the blanking
Notes
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