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Operation Manual Safety I/O Terminals SI4000 / SO4000
Document no.: 5.08009.05
5DESCRIPTION OF THE SAFETY I/O
TERMINALS
This chapter describes the safety I/O Terminals and the type code applied to the module.
5.1 General description
5.1.1 SI4000 4-channel safety digital input terminal
The SI4000 is a digital input terminal for sensors with floating contacts for 24 V
DC
. The
bus terminal has 4 fail-safe inputs.
With two-channel connection, the SI4000 meets the requirements of IEC 61508:2010
SIL3, DIN
EN ISO 13849-1:2008 (Cat 4, PL e) and UL 508.
The bus terminal has the standard design of a Baumueller Bus Terminal.
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