Ossd (Mo4Lhcs8) - Reer MOSAIC M1 Installation And Use Manual

MODULAR SAFETY INTEGRATED CONTROLLER MOSAIC

OSSD (MO4LHCS8)

MO4LHCS8 provides 4 High Current Safety Outputs single channel (2A max per channel).
These outputs are short circuit protected, cross circuit monitored and supply:
In the ON condition: (Uv-0,6V) ÷ Uv (24VDC ± 20%)
•
In the OFF condition: 0V ÷ 2V r.m.s.
•
The maximum load of 2A@24V corresponds to a minimum resistive load of 12.
The maximum capacitive load is 0.82F. The maximum inductive load is 2.4 mH.
Different output configurations (configurable with MSD configuration software) can be set:
• Four single channels (1 Safety Output per channel with its relative feedback input).
• Two dual channels (2 Safety Outputs per channel with their relative feedback input).
• 1 dual channel and 2 single channels.

Using single channels OSSD, to maintain Safety Integrity Level (SIL) "3" requirements the OSSD
outputs must be independent.

Common cause failures between OSSD outputs must be excluded by observing an appropriate
cable installation (i.e. separate cable paths).

Using MO4LHCS8 with sum output current > 5 A, then separate adjacent modules by
interposing a MSC connector.
8540780 • 10/07/2020 • Rev.38 41