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FUNCTIONS
Muting Enable
When the Muting feature is implemented (through two Muting inputs), a third input
can be used to dynamically control whether Muting will be performed or not. The third
input is labeled MUTING ENABLE and works as follows:
prior to a valid Muting sequence on the Muting inputs, if the MUTING ENABLE signal is
at a high level, the Muting feature is enabled, and Muting will be performed; if the
MUTING ENABLE signal is at a low level, the Muting feature will not be performed.
Muting Signaling Devices
Muting status is signaled by an external Muting lamp that may be connected to the
safety laser scanner. The lamp blinks when the Muting function is active.
NOTE
Muting Direction
It is possible to use the ESPE both in a bi-directional and unidirectional Muting. In partic-
ular, the bi-directional Muting is used if the materials move in both directions and the
unidirectional Muting is used if the materials move in one direction only.
Bidirectional Muting
In Bidirectional type operations, the device enters in Muting if the Muting 2 input goes
high after the rising of Muting 1 (or vice versa), within the Max Muting Inputs Delay
(T12 max or T21 max in the figure below). It is possible to set the Max Muting Inputs
Delay between Muting 1 and Muting 2 (or vice versa) from a minimum of 1 sec to a
maximum of 16 sec.
As soon as the signal on Muting 1 or Muting 2 goes low, the Muting function ends, after
an internal delay of max 30 ms (Tdelay).
The Timeout parameter forces the Muting feature to end if the MUTING inputs remain
in the active state.
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SAFERY LASER SCANNER
The Muting Lamp must only be a LED lamp type, max consumption 250 mA.
Figure 14 - Bidirectional Muting Timings
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