SMART Transmitter Power Supply/SMART Current Driver 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

Datasheet
Details
Informative Literature
Product Documentation
Design / Simulation
Approvals
Associated Products
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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 type		Analog input/analog output
Functional safety related parameters
Safety Integrity Level (SIL)		SIL 2
Systematic capability (SC)		SC 3
Supply
Connection		Power Rail or terminals 9+, 10-
Rated voltage		19 ... 30 V DC
Ripple		max. 10 %
Rated current		max. 88 mA at 24 V
Power dissipation		max. 1.4 W
Power consumption		max. 2.1 W
Analog input
Number of channels		2
Suitable field devices		2-wire SMART transmitters
Signal		0/4 ... 20 mA , limited to approx. 30 mA
Field circuit		terminals 1+, 2-, 3+, 4-
Available voltage		min. 15 V at 20 mA min. 18 V at 4 mA
Control circuit		terminals 5-, 6+; 7-, 8+
Input voltage		Voltage 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)
Load		max. 350 Ω (source output)
Ripple		20 mV _eff
Analog output
Number of channels		2
Suitable field devices		SMART I/P converters (positioner), on-site-displays
Signal		0/4 ... 20 mA , limited to approx. 30 mA
Field circuit		terminals 1+, 2-, 3+, 4-
Load		max. 650 Ω
Voltage		min. 13 V at 20 mA
Ripple		20 mV _eff , on all signal terminals
Control circuit		terminals 5-, 6+; 7-, 8+
Voltage drop		max. 6 V
Line fault detection		> 100 kΩ at max. 30 V, with field wiring open
Transfer characteristics
Deviation		max. 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 range		field side into the control side: bandwidth with 0.5 V_pp signal 0 ... 3 kHz (-3 dB) control side into the field side: bandwidth with 0.5 V_pp signal 0 ... 3 kHz (-3 dB)
Settling time		max. 200 ms
Rise time/fall time		max. 100 ms (10 ... 90 %)
Galvanic isolation
Field circuit/control circuit		basic insulation according to IEC/EN 61010-1, rated insulation voltage 300 V_eff
Control circuit/control circuit		functional isolation, rated voltage: 50 V
Field circuit/power supply		reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 V_eff
Control/power supply		basic insulation according to IEC/EN 61010-1, rated insulation voltage 300 V_eff
Indicators/settings
Display elements		LED
Factory setting		analog input with source output
Configuration		via DIP switches
Labeling		space for labeling at the front
Directive conformity
Electromagnetic compatibility
	Directive 2014/30/EU	EN 61326-1:2013 (industrial locations)
Conformity
Electromagnetic compatibility		NE 21:2017 EN 61326-3-2:2018
Degree of protection		IEC 60529:2001
Ambient conditions
Ambient temperature		-40 ... 70 °C (-40 ... 158 °F)
Mechanical specifications
Degree of protection		IP20
Connection		screw terminals
Mass		approx. 115 g
Dimensions		12.5 x 124 x 114 mm (0.5 x 4.9 x 4.5 inch) (W x H x D) , housing type A2
	Height	124 mm
	Width	12.5 mm
	Depth	114 mm
Mounting		on 35 mm DIN mounting rail acc. to EN 60715:2001
General information
Supplementary information		Observe the certificates, declarations of conformity, instruction manuals, and manuals where applicable. For information see www.pepperl-fuchs.com.

Classifications

System	Classcode
ECLASS 13.0	27210120
ECLASS 12.0	27210120
ECLASS 11.0	27210120
ECLASS 10.0.1	27210120
ECLASS 9.0	27210120
ECLASS 8.0	27210120
ECLASS 5.1	27210120
ETIM 9.0	EC002653
ETIM 8.0	EC002653
ETIM 7.0	EC002653
ETIM 6.0	EC002653
ETIM 5.0	EC001485
UNSPSC 12.1	32101514

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

Literature	Language	File Type	File Size
Application Report - Generating Electricity in Coal-Fired Power Plants	ENG	PDF	412 KB
Application Report - Screening Systems in Sewage Treatment Plants	ENG	PDF	577 KB

Product Documentation: KCD2-SCS-2

Safety and Security Documentation	Language	File Type	File Size
Instruction manual	ENG	PDF	156 KB
Functional Safety Manual	ENG	PDF	1985 KB
Manuals
System Manual	ENG	PDF	3694 KB

Design / Simulation: KCD2-SCS-2

CAD	Language	File Type	File Size
CAD 3-D / CAD 3-D	ALL	STP	3085 KB
CAE
CAE EPLAN Data Portal / CAE EPLAN Data Portal	ALL	LINK	---
CAE EPLAN macro EDZ / CAE EPLAN Makro EDZ	ALL	EDZ	2044 KB

Approvals: KCD2-SCS-2

Certificates	Certificate No.	Language	File Type	File Size
DNV Marine	TAA00001WX	ALL	PDF	106 KB
Worldwide TUV Rheinland Functional Safety Certificate	968_FSP_2456_00_en_el	ALL	PDF	620 KB
Declaration of Conformity
EU Declaration of Conformity (P+F) / EU-Konformitätserklärung (P+F)	DOC-6903	ALL	PDF	123 KB
EU Declaration of Conformity (P+F)	TDOC-6903AENG	ENG	PDF	220 KB
UK Declaration of Conformity (P+F) / UK-Konformitätserklärung (P+F)	DOC-6974	ALL	PDF	181 KB

Associated Products: KCD2-SCS-2

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Pepperl+Fuchs Inc.
1600 Enterprise Parkway
Twinsburg, OH 44087
USA
- responsible for Canada -
sales@us.pepperl-fuchs.com
phone +1 330 425-3555

Pepperl+Fuchs is a leading developer and manufacturer of electronic sensors and components for the global automation market. Continuous innovation, enduring quality, and steady growth have been the foundation of our success for more than 70 years. Pepperl+Fuchs employs 6,300 people worldwide and has manufacturing facilities in Germany, USA, Singapore, Hungary, Indonesia and Vietnam, most of them ISO 9001 certified.