Input Objects; E-Stop (Emergency Stop) - Reer MZERO Installation, Use And Maintenance Manual

INPUT OBJECTS

E-STOP (emergency stop)

E-STOP function block verifies an emergency stop device
inputs status. If the emergency stop button has been pressed
the output is 0 (FALSE). If not the output is 1 (TRUE).
Parameters
Input type:
- Single NC – allows connection of one-way emergency
stops
- Double NC – allows connection of two-way emergency
stops.
Manual reset: If selected this enables the request to reset
each time the emergency stop 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 fuctional block, then Input 3 have to be used for the Reset Input.
Output test: This is used to select which test output signals are to be sent to the emergency stop
(mushroom pushbutton). This additional test makes it possible to detect and manage any short-
circuits between the lines. 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 external component (emergency
stop). This test is performed by pressing and releasing the pushbutton 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).
8541403 • 19/07/2021 • Rev.1
STAND ALONE PROGRAMMABLE SAFETY CONTROLLER
t1 > 250ms
t2 = 250ms
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