Wieland samos, User Manual

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SA-OR-S1 / SA-OR-S2 Relay Output Modules
42
© 2010 Wieland Electric GmbH | BA000256 | 12/2012 (Rev. I)
6 SA-OR-S1 / SA-OR-S2 Relay Output Modules
Relay Output Module Data
 SA-OR-S1
 SA-OR-S2
Relay output module with 2 relay groups K1, K2
Relay output module with 1 relay group K1
Relay output modules expand an existing base
module with potential-free output circuits. Each
potential-free output circuit comprises the series-
connected relay contacts of two redundantly
operating positively driven relays and can be used up
to category 4 (EN ISO 13849-1).
The passive relay output expansions do not
operate as slaves on the internal safety bus. Instead
they are integrated in the functions by wiring.
SA-OR-S1 SA-OR-S2
SA-OR-S1 SA-OR-S2

The controller category (EN ISO 13849-1) or SIL (EN 61508/EN 62061) depends on the
external circuitry, the wiring, the choice of control devices and their location on the
machine.

In the event of single-channel control of a contact extension (e.g. SA-OR) through a base
module (SA-BM/BS), category 4 according to EN ISO 13849-1 can be achieved if both
devices are installed in the same enclosure and the samos system is separated from the
power supply at least once a day.

The voltage supply of each output circuit must be protected with a 6 A fuse (utilization
category gG) or a 6 A circuit-breaker (tripping characteristic B or C).

Never connect or disconnect modules while the operating voltage is switched on.

The safety system must be installed in an enclosure with at least IP 54 protection.

Because the relay output modules are not directly integrated in the
communication/diagnosis of the
samos system via the internal safety bus, errors are
registered indirectly via the base module feedback circuits.
Accepting the system configuration
For accepting the system configuration see page 18.
Connection
diagram
Notes
Accepting
configuration