2
02
0-
07
8
Functional Safety HiC284*
Product Description
2
Product Description
2.1
Function
This isolated barrier is used for intrinsic safety applications.
The device transfers digital signals from NAMUR sensors or dry contacts from the hazardous
area to the non-hazardous area.
The proximity sensor or switch controls two passive transistors for the safe area load.
Both transistor outputs are isolated from each other and isolated from the power supply.
The output changes state when the input signal changes state.
Via switches the mode of operation can be reversed and the line fault detection can
be switched off.
This device mounts on a HiC termination board.
2.2
Interfaces
The device has the following interfaces.
•
Safety relevant interfaces:
HiC2841: input I, output I, output II (optional)
HiC2842: input I, input II, output I, output II
•
Non-safety relevant interfaces: fault indication output
2.3
Marking
2.4
Standards and Directives for Functional Safety
Device specific standards and directives
System-specific standards and directives
Note
For corresponding connections see datasheet.
Fuchs Group
Lilienthalstraße 200, 68307 Mannheim, Germany
Internet: www.pepperl-fuchs.com
HiC2841, HiC2842
Up to SIL 2
Functional safety
IEC/EN 61508, part 1
–
7, edition 2010:
Functional safety of electrical/electronic/programmable
electronic safety-related systems (manufacturer)
Functional safety
IEC/EN 61511, part 1
–
3, edition 2016:
Functional safety
–
Safety instrumented systems
for the process industry sector (user)
