Mod-Sel (Safety Selector); Photocell (Safety Photocell) - Reer MOSAIC Master M1 Installation And Use Manual

The MOD-SEL function block verifies the status of
the inputs from a mode selector (up to 4 inputs):
If only one input is 1 (TRUE) the corresponding
output is also 1 (TRUE). In all other cases, and
thus when all inputs are 0 (FALSE) or more than
one input is 1 (TRUE) all the outputs are 0
(FALSE).
Parameters
Input type:
- Double selector – Allows connection of two-
way mode selectors.
- Triple selector – Allows connection of three-way mode selectors.
- Quadruple selector - Allows connection of four-way mode selectors.
Filter (ms): This is used to filter the signals coming from the mode selector. 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.
Simultaneity (ms): always active. Determines that maximum permissible time (msec)
between switching of the various signals from the external contacts of the device.
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.
The PHOTOCELL function block verifies the
status of the inputs of an optoelectronic safety
photocell. If the beam of the photocell is
occupied (photocell output FALSE) the output is
0 (FALSE). Otherwise with the beam clear and an
output of 1 (TRUE) the output is 1 (TRUE).
Parameters
Manual reset: If selected this enables the
request to reset each time safety photocell 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

An output test signal is mandatory and can be selected from the 4 possible Test
Output 1 ÷ 4.

If the Manual Reset is active, a consecutive Input have to be used. Example: Input 1
is used for the functional block, then Input 2 have to be used for the Reset Input.
88
MODULAR SAFETY INTEGRATED CONTROLLER MOSAIC
t1 > 250ms
t2 = 250ms
8540780 • 30/03/2016 • Rev.26