2014-09
4
Safety Manual SIL KFD2-ST*4-(Ex)*, KFD2-CR4-(Ex)*
Introduction
1Introduction
1.1 General Information
This manual contains information on using the device in control circuits that are
related to functional safety.
The corresponding data sheets, the operating instructions, the system
description, the declaration of conformity, the EC-Type Examination Certificate,
and the applicable certificates (see data sheet) are an integral part of this
document.
The stated documents are available at www.pepperl-fuchs.com or from your
local Pepperl+Fuchs representative.
Mounting, installation, commissioning, operation, maintenance and disassembly
of any devices may only be carried out by trained, qualified personnel. The
instruction manual must be read and understood.
In the event of a device fault, the devices must be taken out of operation and
measures must be taken to protect them against unintentional startup. Devices
may be repaired only by the manufacturer. Deactivating or bypassing safety
functions, or failing to observe the instructions in this manual (which lead to faults
or affect the safety functions), can damage property and the environment or
cause personal injury, for which Pepperl+Fuchs GmbH accepts no liability.
The devices have been developed, manufactured, and tested according to the
applicable safety standards. The devices may be used only for the applications
described in the instructions under the specified ambient conditions and
exclusively in connection with the approved peripherals.
1.2 Intended Use
The isolated barriers and signal conditioners KFD2-CR4-(Ex)* and
KFD2-STC4-(Ex)* provide power for 2-wire transmitters in a hazardous area. The
versions without the designation "Ex" are for safe areas only. The devices transfer
their analog signals to the safe area as isolated current sources. The one channel
versions KFD2-CR4-(Ex)1* and KFD2-STC4-(Ex)1* can also be used with 3-wire
transmitters and 2-wire current sources as inputs.
The isolated barriers and signal conditioners KFD2-STC4-(Ex)*-3 and
KFD2-STC4-(Ex)*-Y* provide a current sink output while other KFD2-STC4-(Ex)*
devices provide a current source output.
The isolated barriers and signal conditioners KFD2-STV4-(Ex)* provide power for
2-wire transmitters in a hazardous area. The versions without the designation
"Ex" are for safe areas only. The devices transfer the analog signals to the safe
area as isolated voltage sources. The one channel versions KFD2-STV4-(Ex)1*
can also be used with 3-wire transmitters and 2-wire current sources as inputs.
Digital signals may be superimposed on the analog values (SMART signals) and
are transferred bidirectionally (only KFD2-STC4-(Ex)* and KFD2-STV4-(Ex)*).
The devices are single devices for DIN rail mounting.
Safety Manual SIL KFD2-ST*4-(Ex)*, KFD2-CR4-(Ex)*
www.acornfiresecurity.com
www.acornfiresecurity.com
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