S-Mat (Safety Mat) - Reer MZERO Installation, Use And Maintenance Manual

Output test: This is used to select which test output signals are to be sent to the sensor. This
additional control permits detection and management of any short-circuits between the lines. To
enable this control, the test output signals must be configured (amongst those available).
Test at start-up: If selected this enables the test at start-up of the sensor. This test is performed
by occupying and clearing the area protected by the sensor to run a complete function test and
enable the output. This test is only requested at machine start-up (when the unit is switched on).
Filter (ms): This is used to filter the signals coming from the sensor. The filter can be configured to
between 3 and 250 ms and eliminates any bouncing on the contacts. The length of the filter affects
the calculation of the unit's total response time.
Enable Error Out: If selected reports a fault detected by the function block.
Item description: This allows a description of the component's function to be entered. The text is
displayed in the top part of the symbol.

S-MAT (safety mat)

The S-MAT function block verifies the status of the
inputs of a safety mat. If a person stands on the mat
the output is 0 (FALSE). Otherwise, with the mat clear,
the output is 1 (TRUE).
Parameters
Manual reset: If selected this enables the request to
reset each time the mobile guard/safety gate is
activated. Otherwise, enabling of the output directly
follows the input conditions.
There are two types of reset: Manual and Monitored.
When Manual is selected the system only verifies the
signal's transition from 0 to 1. If Monitored is selected
the double transition from 0 to 1 and then back to 0 is
.
verified
t = 250ms
➔
If the Manual Reset is active, a consecutive Input have to be used. Example: Input 1 and Input
2 are used for the functional block, then Input 3 have to be used for the Reset Input.
➔
Two output test signals are mandatory. Each output OUT TEST can be connected to only one
input S-MAT (it is not allowed parallel connection of 2 inputs).
➔
The function block S-MAT cannot be used with 2-wire components and termination
resistance.
Output test: This is used to select which test output signals are to be sent to the s-mat contact.
This additional control permits detection and management of any short-circuits between the lines.
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STAND ALONE PROGRAMMABLE SAFETY CONTROLLER
t1 > 250ms
t2 = 250ms
8541403 • 19/07/2021 • Rev.1