PRODUCT DESCRIPTION

KCD2-SCS.Ex2| Pepperl+Fuchs

Valve Positioner Control and Monitoring with Only One Device

Safety Integrity Level 2
KFD2-CRG2-Ex1.D1-channel isolated barrier
KFD2-SCD2-Ex2.LK2-channel isolated barrier
KFD2-SOT3-Ex22-channel isolated barrier
KFD2-STC5-Ex22-channel isolated barrier
KFD2-UFC-Ex1.D1-channel isolated barrier
KFD2-UT2-Ex22-channel isolated barrier
HiC20251-channel isolated barrier
HiC2025A1-channel isolated barrier
HiC20271-channel isolated barrier
HiC20311-channel isolated barrier
HiC2031HC1-channel isolated barrier
HiC20811-channel isolated barrier
HiC28222-channel isolated barrier
HiC28311-channel isolated barrier
HiC28411-channel isolated barrier
HiC28422-channel isolated barrier
KCD2-RR2-Ex11-channel isolated barrier
KCD2-RR2-Ex1.SP1-channel isolated barrier
KCD2-SCD-Ex11-channel isolated barrier
KCD2-SCD-Ex1.SP1-channel isolated barrier
KCD2-SCS-Ex22-channel isolated barrier
KCD2-SCS-Ex2.SP2-channel isolated barrier
KCD2-SON-Ex11-channel isolated barrier
KCD2-SON-Ex1.R11-channel isolated barrier
KCD2-SON-Ex1.R21-channel isolated barrier
KCD2-SON-Ex1.R31-channel isolated barrier
KCD2-SON-Ex1.SP1-channel isolated barrier
KCD2-SON-Ex22-channel isolated barrier
KCD2-SON-Ex2.R12-channel isolated barrier
KCD2-SON-Ex2.R22-channel isolated barrier
KCD2-SON-Ex2.R32-channel isolated barrier
KCD2-SON-Ex2.SP2-channel isolated barrier
KCD2-SOT-Ex1.LB1-channel isolated barrier
KCD2-SOT-Ex1.LB.SP1-channel isolated barrier
KCD2-SOT-Ex22-channel isolated barrier
KCD2-SOT-Ex2.SP2-channel isolated barrier
KCD2-SR-Ex11-channel isolated barrier
KCD2-SR-Ex1.LB1-channel isolated barrier
KCD2-SR-Ex1.LB.SP1-channel isolated barrier
KCD2-SR-Ex22-channel isolated barrier
KCD2-SR-Ex2.SP2-channel isolated barrier
KCD2-ST-Ex1.LB1-channel isolated barrier
KCD2-ST-Ex1.LB.SP1-channel isolated barrier
KCD2-ST-Ex22-channel isolated barrier
KCD2-ST-Ex2.SP2-channel isolated barrier
KCD2-STC-Ex11-channel isolated barrier
KCD2-STC-Ex1.2O1-channel isolated barrier
KCD2-STC-Ex1.SP1-channel isolated barrier
KCD2-UT2-Ex11-channel isolated barrier
KCD2-VR4-Ex11-channel isolated barrier
KCD2-VR4-Ex1.B1-channel isolated barrier
KCD2-VR4-Ex1.B.SP1-channel isolated barrier
KCD2-VR4-Ex1.SP1-channel isolated barrier
KFA5-DWB-Ex1.D1-channel isolated barrier
KFA6-DWB-Ex1.D1-channel isolated barrier
KFD0-CS-Ex1.50P1-channel isolated barrier
KFD0-CS-Ex1.51P1-channel isolated barrier
KFD0-CS-Ex2.50P2-channel isolated barrier
KFD0-CS-Ex2.51P2-channel isolated barrier
KFD0-SCS-Ex1.551-channel isolated barrier



The First 2-Channel Isolated Barriers for Analog Signals


Pepperl+Fuchs has expanded its portfolio of K-System 

isolated barriers for DIN rail mounting (power rail) with 

the KCD2-SCS* interface module. As the first 2-channel 

AI/AO intrinsic safety barrier with dual function, the module 

can be configured individually for analog input or analog 

output control signals. With a compact 12.5 mm housing 

and a packing density of 6 mm/channel, the new module 

enables space-saving integration in the control cabinet. 

These interface modules are HART-compatible and can 

be used both as SMART transmitter power supplies for

two-wire transmitters and as SMART current drivers for 

valve positioners. The module can be operated on the control 

side in both current sink and current source mode, with the 

switchover being carried out using dip switches on the front 

of the module. This considerably extends compatibility 

with a wide range of control systems.


Compact Design, Configurable Channels


A completely new feature for modules of this type is that 

each channel is configurable to allow positioner control on one 

channel (AO), and position monitoring (AI) on the second channel. 

Positioners ensure that the actuator is brought into a position 

specified by the control system. They are often equipped with analog 

position indicators whose feedback confirms that the position specification 

has been performed. These can be, for example, stroke or rotation angles, 

which are typically provided as 4–20 mA signals and reported back to the 

control system. Previously, a separate isolator module was required for 

the input and output signal. With the new module now available, these 

two functions can be used in one device for the first time. If the modules 

are no longer required for their original signal journey when changes 

are made to the system, they can continue to be used elsewhere in the system 

thanks to their configurability. This optimizes warehousing and ensures 

investment security.


The KCD2-SCS* is an intrinsic safety barrier that can be used for hazardous 

area applications (approved to ATEX, IECEx, and UL). A version for non-Ex 

signal conditioning in safe area applications is also available. For each version, 

there is an option of screw terminals or spring terminals with push-in connection 

technology. The modules are also certified up to SIL 2 (SC 3) in accordance 

with IEC/EN 61508 and are therefore suitable for safety applications up to SIL 2, 

and even up to SIL 3 when used redundantly.


Common applications for the KCD2-SCS* modules in the process industry include 

process control applications that have both analog input and analog output control 

loops, safety systems (SIS and ESD) that require SIL 2- or SIL 3-rated intrinsic safety 

barriers, as well as control loops located in hazardous areas.


Convenient Installation on a Power Rail


The KCD2-SCS* devices are part of the K-System, which comprises a total of more 

than 200 isolated barriers and 150 signal isolators. The modules are mounted on a 

universal power rail. The devices are also supplied with power via this mounting rail 

profile with insert.


Highlights of the KCD2-SCS* Modules

Universal 2-channel devices for analog input and output signals

Each channel can be configured individually as input or output

Functions: Transmitter power supply for 2-wire transmitters, 

current driver for positioners

Current sink and source on control side for analog input signals

Ex certifications: ATEX, IECEx, UL

Functional safety: SIL 2 (SC 3) acc. to IEC61508 ed2 (TÜV Rheinland)

Ambient temperature: -40 °C … +70 °C (-40 °F … +158 °F)

HART-transparent



HONGKONG XIEYUAN TECH CO., LIMITED

ava.wong@hkxytech.com

Mob/WhatsApp: 86-15602323637


KCD2-SCS.Ex2| Pepperl+Fuchs

KCD2-SCS.Ex2| Pepperl+Fuchs

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