SICK M4000 Advanced

Chapter 4 Operating Instructions
M4000 Adv., Adv. A/P, Area
22 © SICK AG • Industrial Safety Systems • Germany • All rights reserved 8010797/YT72/2016-02-19
Subject to change without notice
Muting
4 Muting

When using the muting functions of the M4000 Advanced please observe the operating
instructions of the corresponding UE403 or sens:Control device.
WARNING
Pay attention to the following safety notes!
 Muting is only allowed to be activated during the period when the material to be trans-
ported (e.g. on a pallet) blocks the access to the hazardous area.
 Muting must be performed automatically, but must not depend on a single electrical
signal.
 Muting must be triggered by at least two independently wired signals (e.g. from muting
sensors) and must not depend entirely on software signals (for instance from a PLC).
 Muting must be removed immediately as soon as the material to be transported no
longer blocks the access to the dangerous movement so that the protective device is
once more effective.
 The material to be transported must be detected over its entire length, i.e. there must
be no interruption in the output signals.
 Mount the control switch for reset or override outside the hazardous area such that it
cannot be operated by a person in the hazardous area. When operating the control
switch, the operator must have full visual command of the hazardous area.
 Always mount the sensors so that the minimum distance to the protective device is
maintained.
 Prevent the unintentional triggering of muting by a person by mounting the sensors
appropriately (see Fig. 13)!
Note
Fig. 13: Safety on mounting
the muting sensors
Ensure that muting cannot be unintentionally triggered
by a person!