eloProg - Vers. 1.0
65
SENSOR
The SENSOR function block verifies the status of the
input of a sensor (not a safety sensor). If the beam of
the sensor is occupied (sensor output FALSE) the
output is 0 (FALSE). Otherwise, with the beam clear
and an output of 1 (TRUE) then the output is 1
(TRUE).
Parameters
Enabled reset
: If selected this enables the request to
reset each time the area protected by the light curtain
is occupied. 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
.
Î
WARNING: If the Enabled Reset is active, a consecutive Input has to be used. Example:
Input 1 is used for the functional block, then Input 2 has to be used for the Reset Input.
Output test
: This is used to select which test output signals are to be sent to the sensor. This
additional test makes it possible to detect and manage any short-circuits between the lines.
There is a choice of 4 possible test output signals, Test Output 1 ÷ Test Output 4.
Test at start-up
: If selected this enables the test at start-up of the safety light curtain. This test is
performed by occupying and clearing the area protected by the safety light curtain 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 safety light curtain. 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.
Object description
: This allows a description of the component's function to be entered. The text is
displayed in the top part of the symbol.
