Product Description; Validity; Function - Pepperl+Fuchs KCD2-SCD Series Manual

Functional Safety KCD2-SCD-(Ex)1(.SP), HiC2031

Product Description

2 Product Description
2.1

Validity

This manual is only valid for devices with a part number greater than #321000.
Contact your Pepperl+Fuchs representative for information about older devices.
2.2

Function

KCD2-SCD-1(.SP)
This signal conditioner provides the galvanic isolation between field circuits
and control circuits.
The device repeats the input signal from a control system to drive SMART I/P converters,
electrical valves, and positioners located on the field side.
Digital signals are superimposed on the analog values at the field side or control side
and are transferred bi-directionally.
The current is transferred via a DC/DC converter and repeated at the output terminals.
An open field circuit presents a high impedance to the control side to allow alarm conditions
to be monitored by the control system.
Test sockets for the connection of HART communicators are integrated into the terminals
of the device.
SP version
The devices are available with screw terminals or spring terminals. The type code
of the versions of the devices with spring terminals has the extension ".SP".
KCD2-SCD-Ex1(.SP)
This isolated barrier is used for intrinsic safety applications.
The device repeats the input signal from a control system to drive SMART I/P converters,
electrical valves, and positioners located in a hazardous area.
Digital signals are superimposed on the analog values at the field side or control side
and are transferred bi-directionally.
The current is transferred via a DC/DC converter and repeated at the output terminals.
An open field circuit presents a high impedance to the control side to allow alarm conditions
to be monitored by the control system.
Test sockets for the connection of HART communicators are integrated into the terminals
of the device.
SP version
The devices are available with screw terminals or spring terminals. The type code
of the versions of the devices with spring terminals has the extension ".SP".
7