Muting Function; Muting Operators (Max Number = 4); Concurrent" Muting - Reer MZERO Installation, Use And Maintenance Manual

MUTING FUNCTION

The Muting function generates a temporary, automatic interruption of electro-sensitive protective device
(ESPE) operation in order to permit normal transit of material through the guarded opening.
In other words, when the system recognizes the material and distinguishes between this and any operator (in a
potentially dangerous situation), it is enabled to bypass the safety device temporarily, allowing the material to
pass through the guarded opening.

MUTING OPERATORS (max number = 4)

"Concurrent" MUTING

The activation of the Muting function occurs following
interruption of the sensors S1 and S2 beam (the order does
not matter) within a time range from 2s and 5s chosen by the
operator (or S3 and S4 with material that is moving in the
direction opposite).
The MUTING operator with "Concurrent" logic
performs muting of the input signal through sensor
inputs S1, S2, S3 and S4.
➔
Preliminary condition: The Muting cycle can only
start if all the sensors are 0 (FALSE) and inputs
are 1 (TRUE) (safety curtain free).
Parameters
Timeout (sec): Sets the time, between 10 secs and unlimited, within which the Muting cycle must
end. If the cycle is not complete at the end of this time, Muting is immediately discontinued.
With Enable: When checked let the user the possibility of enabling or not enabling the Muting
function. Otherwise the Muting function is always enabled.
Enable Type:
There are two Enable modes: Enable/Disable and Enable Only.
•
If "Enable/Disable" is selected the Muting cycle cannot start if Enable is stucked at 1 (TRUE)
or 0 (FALSE). It is only activated with a rising edge of the signal. On the other hand the
falling edge disables Muting regardless of the current condition.
•
If "Enable Only" is selected the Muting function cannot be disabled. It is mandatory to set
the "Enable" input to 0 (FALSE) in order to reset this command for a new Muting cycle.
Direction: This let the user to choose the order in which the sensors are occupied. If set to BIDIR
they can be occupied in both directions, from S1&S2 to S3&S4 and from S3&S4 to S1&S2, if set to
UP they can be occupied from S1&S2 to S3&S4 and if set to DOWN from S3&S4 to S1&S2.
Muting Closing: There are two types, CURTAIN and SENSOR. If you select CURTAIN muting closes
when the input signal rises, if you select SENSOR it closes when the third sensor has been cleared.
8541403 • 19/07/2021 • Rev.1
STAND ALONE PROGRAMMABLE SAFETY CONTROLLER
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