29
Operation Manual
Safety I/O Terminals
SI4000 / SO4000
Document no.: 5.08009.05
5
D
ESCRIPTION
OF
THE
S
AFETY
I/O
T
ERMINALS
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.
Summary of Contents for SI4000
Page 83: ......