Typical Muting Application And Safety Light Curtain Connection; Muting Mode Selection - Datasensing SH4 ADVANCED Product Reference Manual

FUNCTIONS

Typical Muting application and safety light curtain connection

The figure below shows a typical Muting application: a protection installed on a con-
veyor should allow the pack passing-by but not the worker.
The ESPE temporarily suspends its safety function on a correct activation sequence of
S1, S2, S3, S4 sensors.
These sensors can be optical, mechanical, proximity sensors etc., with high output
when the object is detected.

Muting mode selection

The ESPE can be used with both bidirectional (T type, four sensors) and monodirectional
(L type, two sensors) Muting.
Bidirectional Muting can be used in those applications in which the packs can move in
both directions and mono directional Muting can be used only on those applications in
which the packs moves out from the dangerous area.
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SH4 ADVANCED
Figure 41: Typical Muting Application
NOTE: Unintentional activations of muting function are avoided thanks to
the correct positioning of muting sensors and proper constraints on signal
timings.
The light curtain must be in the ON state to accept the muting request.
Then, a muting request is accepted only if signals at MUTING inputs follow
the timings shown in next paragraphs depending on selected muting sensor
configuration.
Four different muting behavior are possible and 2 or 4 separate signals can
be used to trigger muting function.