ABB IRC5 Compact User Manual

with IRC5’s enabling device chain is above 55 years. See safety related
performance for the enabling device chain below.
Performance of IRC5 original enabling device chain
The safety-related performance of the enabling device chain, without the external
enabling device, is as follows:
• MTTF
d
for IRC5 enabling device chain is 80 years.
• IRC5’s enabling device chain’s calculated average probability of dangerous
failure per hour (PFH
d
) is 6.62x10E-08.
• IRC5’s enabling device chain’s design and structure is category 3.
• IRC5’s enabling device chain’s Diagnostic Coverage is medium (90% < DCavg
< 99%).
• The Common Cause Failure (CCF) is met according to the standard
requirements.
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3HAC047138-001 Revision: G
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2 Installation and commissioning
2.11.2 Installation of external enabling device
Continued

ABB IRC5 Compact Specifications

General

Brand	ABB
Model	IRC5 Compact
Category	Controller
Language	English