Serviceline Industrial Sensors
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SMART Transmitter Power Supply/SMART Current Driver KCD2-SCS-2

KCD2-SCS-2
  • 2-channel signal conditioner
  • 24 V DC supply (Power Rail)
  • Analog input (AI), Analog output (AO)
  • Operates as transmitter power supply or current driver
  • Housing width 12.5 mm
  • Up to SIL 2 (SC 3) acc. to IEC/EN 61508

Please note: All product-related documents, such as certificates, declarations of conformity, etc., which were issued prior to the conversion under the name Pepperl+Fuchs GmbH or Pepperl+Fuchs AG, also apply to Pepperl+Fuchs SE.

Download the complete datasheet as a PDF:


Datasheet excerpt: Technical data of  KCD2-SCS-2

General specifications
Signal typeAnalog input/analog output
Functional safety related parameters
Safety Integrity Level (SIL)SIL 2
Systematic capability (SC)SC 3
Supply
ConnectionPower Rail or terminals 9+, 10-
Rated voltage19 ... 30 V DC
Ripplemax. 10 %
Rated currentmax. 88 mA at 24 V
Power dissipationmax. 1.4 W
Power consumptionmax. 2.1 W
Analog input
Number of channels2
Suitable field devices2-wire SMART transmitters
Signal0/4 ... 20 mA , limited to approx. 30 mA
Field circuitterminals 1+, 2-, 3+, 4-
Available voltagemin. 15 V at 20 mA
min. 18 V at 4 mA
Control circuitterminals 5-, 6+; 7-, 8+
Input voltageVoltage across terminals 10 ... 30 V. If the current is supplied from a source > 24 V,
series resistance of ≥ (V - 24)/0.02 Ω is needed, where V is the source voltage.
The maximum value of the resistance is (V - 10)/0.02 Ω. (sink output)
Loadmax. 350 Ω (source output)
Ripple20 mV eff
Analog output
Number of channels2
Suitable field devicesSMART I/P converters (positioner), on-site-displays
Signal0/4 ... 20 mA , limited to approx. 30 mA
Field circuitterminals 1+, 2-, 3+, 4-
Loadmax. 650 Ω
Voltagemin. 13 V at 20 mA
Ripple20 mV eff , on all signal terminals
Control circuitterminals 5-, 6+; 7-, 8+
Voltage dropmax. 6 V
Line fault detection> 100 kΩ at max. 30 V, with field wiring open
Transfer characteristics
Deviationmax. 20 µA incl. calibration, linearity, hysteresis, loads and fluctuations of supply voltage
Influence of ambient temperature< 2 µA/K (-40 ... 70 °C (-40 ... 158 °F))
Frequency rangefield side into the control side: bandwidth with 0.5 Vpp signal 0 ... 3 kHz (-3 dB)
control side into the field side: bandwidth with 0.5 Vpp signal 0 ... 3 kHz (-3 dB)
Settling timemax. 200 ms
Rise time/fall timemax. 100 ms (10 ... 90 %)
Galvanic isolation
Field circuit/control circuitbasic insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff
Control circuit/control circuitfunctional isolation, rated voltage: 50 V
Field circuit/power supplyreinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff
Control/power supplybasic insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff
Indicators/settings
Display elementsLED
Factory settinganalog input with source output
Configurationvia DIP switches
Labelingspace for labeling at the front
Directive conformity
Electromagnetic compatibility
Directive 2014/30/EUEN 61326-1:2013 (industrial locations)
Conformity
Electromagnetic compatibilityNE 21:2017
EN 61326-3-2:2018
Degree of protectionIEC 60529
Ambient conditions
Ambient temperature-40 ... 70 °C (-40 ... 158 °F)
Mechanical specifications
Degree of protectionIP20
Connectionscrew terminals
Massapprox. 115 g
Dimensions12.5 x 124 x 114 mm (0.5 x 4.9 x 4.5 inch) (W x H x D) , housing type A2
Height124 mm
Width12.5 mm
Depth114 mm
Mountingon 35 mm DIN mounting rail acc. to EN 60715:2001
General information
Supplementary informationObserve the certificates, declarations of conformity, instruction manuals, and manuals where applicable. For information see www.pepperl-fuchs.com.

Classifications

SystemClasscode
ECLASS 13.027210120
ECLASS 12.027210120
ECLASS 11.027210120
ECLASS 10.0.127210120
ECLASS 9.027210120
ECLASS 8.027210120
ECLASS 5.127210120
ETIM 9.0EC002653
ETIM 8.0EC002653
ETIM 7.0EC002653
ETIM 6.0EC002653
ETIM 5.0EC001485
UNSPSC 12.132101514

Details: KCD2-SCS-2

Function

This signal conditioner provides the galvanic isolation between field circuits and control circuits.

Each device channel works as a transmitter power supply or a current driver.

The device transfers data by using a current signal.

The device supports a bi-directional communication for SMART devices that use current modulation to transmit data and voltage modulation to receive data.

For current driver operation, an open field circuit presents a high impedance to the control side to allow lead breakage to be monitored by control systems.

Informative Literature: KCD2-SCS-2

Language Selection:
LiteratureLanguageFile TypeFile Size
Application Report - Generating Electricity in Coal-Fired Power PlantsENGPDF412 KB
Application Report - Screening Systems in Sewage Treatment PlantsENGPDF577 KB

Product Documentation: KCD2-SCS-2

Language Selection:
Safety and Security DocumentationLanguageFile TypeFile Size
Instruction manualENGPDF156 KB
Functional Safety ManualENGPDF1985 KB
Manuals
System ManualENGPDF3694 KB

Design / Simulation: KCD2-SCS-2

Language Selection:
CADLanguageFile TypeFile Size
CAD 3-D / CAD 3-DALLSTP3085 KB

Approvals: KCD2-SCS-2

Language Selection:
CertificatesCertificate No.LanguageFile TypeFile Size
Worldwide TUV Rheinland Functional Safety Certificate968_FSP_2456_00_en_elALLPDF620 KB
Declaration of Conformity
EU Declaration of Conformity (P+F)TDOC-6903AENGENGPDF220 KB
EU Declaration of Conformity (P+F) / EU-Konformitäterklärung (P+F)DOC-6903ALLPDF123 KB
UK Declaration of Conformity (P+F) / UK-Konformitäterklärung (P+F)DOC-6974ALLPDF181 KB

Associated Products: KCD2-SCS-2

Matching System Components

Interface for Power Rail, Supply current ≤ 4 A, Replaceable fuse, Relay contact output, reversible, LED status indicationpa

35 mm DIN mounting rail with 3-conductor insert, Provides DC supply voltage to all equipped K-System modules, Standard length 2 m (6 foot), simple to customize to application space, Eliminates daisy-chainspa

35 mm DIN mounting rail with 3-conductor insert, Provides DC supply voltage to all equipped K-System modules, Standard length 0.8 m (2.6 ft), simple to customize to application space, Eliminates daisy-chainspa
35 mm DIN mounting rail with 3-conductor insert, Provides DC supply voltage to all equipped K-System modules, Standard length 1.6 m (5 foot), simple to customize to application space, Eliminates daisy-chainspa
Cable trunking is integrated in the mounting profile, Safe spacious separation of field and control signals, No additional cable guides necessary, Standard length 1.8 m (5.8 ft), simple to customize to application space, With mounting aidspa
Cable trunking with integrated Power Rail UPR-03, Safe spacious separation of field and control signals, No additional cable guides necessary, Provides DC supply voltage to all equipped K-System modules, Standard length 1.8 m (5.8 ft), simple to customize to application space, With end caps UPR-E, cover and mounting aidspa
Accessories
2-pin, Fully insulated, For connectors with 5.0 mm or 5.08 mm pitchpa
2-pin screw terminal, For KC modules of K-System, Packaging unit: 5 pieces greenpa
Coding of K-System terminal blocks, Coding of LB/FB-System front sockets, Packaging unit: 20 x 6 coding pinspa
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