Reer MOSAIC MI8O4C Installation And Use

MODULAR SAFETY INTEGRATED CONTROLLER MOSAIC
38 8540780 • 10/07/2020 • Rev.38
English
OUTPUTS
OUT STATUS (SIL 1/PL c)
The OUT STATUS signal is a Programmable SIL 1 /PL c output that can indicate the
status of:
• An input.
• An output.
• A node of the logic diagram designed using the MSD.
OUT TEST
The OUT TEST signals must be used to monitor the presence of short-circuits or overloads
on the inputs (Figure 8).
Figure 8

The maximum number of controllable inputs for
each output OUT TEST is 4 INPUTs (parallel
connection)

The maximum allowed length for OUT TEST signal
connections is = 100m.
OSSD SAFETY OUTPUTS
IMPORTANT NOTE CONCERNING OSSD SAFETY OUTPUTS

OSSD safety outputs are periodically tested against possible stucks to 0V or +24VDC
or against bad cabling (e.g. two OSSD outputs shorted together). The test method
(test pulse in MSD
Software): periodically and for a very short time (few microseconds) each OSSD output
is shorted to 0V by the Control Unit which knows the results has to be expected and
if the test results are not consistent brings immediately the system to a safe state.
Figure 9 – Voltage dip test

Reer MOSAIC MI8O4C Specifications

General

Brand	Reer
Model	MOSAIC MI8O4C
Category	Controller
Language	English