Operating instructions
Chapter
4
Flexi Classic
8011509/YPP0/2015-10-26
© SICK AG • Industrial Safety Systems • Germany • All rights reserved
67
Subject to change without notice
Special applications and
functions
4.5
OR function
The OR function can be implemented at the UE410-MU/UE410-XU modules (switch
positions 1 and 2) or by an input extension module UE410-8DI (switch position 7).
Switch the machine to a safe state when using the OR function!
As long as the OR function is active, the outputs of the main module do
not
switch off. You
must ensure that while the OR function is being used, for example for the set-up mode,
other protective measures, e.g. the safe set-up mode of the machine, are activated so that
there is no danger to persons or parts of the machine while the OR function is being used.
A logic path A/B can be muted by using an OR signal. Thus, for example, a safety function
can be muted in set-up mode by means of an enabling switch. An OR link of two safety
functions is also possible.
The OR function does not have a time limit.
OR function with input extension module
All the programs of the main module offer the possibility of linking signals of the OR func-
tion at the UE410-8DI input extension modules to the input signals of the UE410-MU/
UE410-XU by means of a logical OR (also refer to section 3.8.2 “OR link” on page 53).
OR function on the UE410-MU/UE410-XU
The OR function can be implemented in the programs 1 and 2. I1/I2 is linked to I3/I4 OR.
OR function on the UE410-GU via UE410-8DI
On the UE410-GU the OR function is only available via the UE410-8DI input expansion mo-
dule (switch position 7) and only on the local cut-off path, i.e. via input B.
An OR function that acts on the global cut-off path on the UE410-GU (switch position 7,
input A on the UE410-8DI) is not permitted and will result in a configuration error (ERROR).
Note
WARNING
Note
