CONTROL UNIT SERIES AUS X
8540643 - 26/08/2016 Rev.13
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The Muting sensors form the sensing system that decides whether the
Muting function is to be activated (or not). Control of the dangerous
opening can be de-activated only by a correct sequence of interruption
of the beams of the Muting sensors.
Figure 17
Muting with AUS XM on palletizing system application example
Muting sequence
The timing diagrams in Figure 18 and Figure 19 show the correct
signal sequence. The muting function is initiated by the contemporary
occurrence of two events :
When the two beams of the muting sensors are activated within a
time limit of 4 sec.
When the muting enable signal (terminal 11) is high (+24Vdc)
The muting function is terminated by one of the following events:
As soon as one of the muting sensors is no longer activated
whichever occurs first.
When the muting time-out limit is expired; in this case the OSSDs
are brought to the off-state. The muting time-out limit can be
selected at 30sec or
.
The muting enable command will only enable the muting function and should
be generated at the appropriate time by the machine control system(e.g.
When the muting function is needed); it has no effect on the deactivation of
the muting function. If not used, fix the terminal 11 at +24Vdc.
This means that a time limit is always mandatory. If a time
out limit of 30 sec is a too short time for a particular machine cycle, the
configuration without time monitoring (t =
) can be selected. In this case
alternative solutions or additional measures shall be implemented
or by the muting sensors activated all the time.
For example for the application of guarding the openings of a conveyor
system (palletizers) by monitoring appropriate signals generated by the
transport system to determinate if and when a pallet is in the detection zone.
