Pepper Fuchs KCD2-STC-1 Specifications

SMART Transmitter Power Supply

2

KCD2-STC-1

24 V DC

9+

10-

Power Rail

24 V DC

7-

5-

1+

2-

3+

4-

6+

8+

HART

HART

HART

V

mA

Germany: [phone]Pepperl+Fuchs Group

Refer to "General Notes Relating to Pepperl+Fuchs Product Information".

USA: [phone] Singapore: [phone]

www.pepperl-fuchs.com [e-mail] [e-mail]

[e-mail]

KCD2-STC-1

1-channel signal conditioner

<

24 V DC supply (Power Rail)

<

Input for 2-wire SMART transmitters and current sources

<

Output for 4 mA ... 20 mA or 1 V ... 5 V

<

Sink or source mode

<

Housing width 12.5 mm

<

Up to SIL 2 acc. to IEC 61508

<

Input 4 mA ... 20 mAOutput 4 mA ... 20 mA

Function

This signal conditioner provides the isolation for non-intrinsically safe applications.
The device supplies 2-wire SMART transmitters, and can also be used with 2-wire SMART current sources.
It transfers the analog input signal as an isolated current value.
Digital signals may be superimposed on the input signal and are transferred bi-directionally.
Selectable output of current source, sink mode, or voltage output is available via DIP switches.
If the HART communication resistance in the loop is too low, the internal resistance of 250 Ω between terminals 6 and 8 can be used.
Test sockets for the connection of HART communicators are integrated into the terminals of the device.

Connection

Release date: 2020-09-23 Date of issue: 2020-09-23 Filename: 202927_eng.pdf

1

114

122

12.5

SMART Transmitter Power Supply KCD2-STC-1

Germany: [phone]Pepperl+Fuchs Group

Refer to "General Notes Relating to Pepperl+Fuchs Product Information".

USA: [phone] Singapore: [phone]

www.pepperl-fuchs.com [e-mail] [e-mail]

[e-mail]

Dimensions

Technical Data

General specifications

Signal type Analog input

Functional safety related parameters

Safety Integrity Level (SIL) SIL 2

Supply

Connection Power Rail or terminals 9+, 10-

Rated voltage U

Ripple ≤ 10 %

Rated current I

Power dissipation ≤ 800 mW

Power consumption ≤ 1.1 W

Input

Connection side field side

Connection terminals 1+, 2-; 3+, 4-

Input signal 4 ... 20 mA limited to approx. 30 mA

Open circuit voltage/short-circuit current terminals 1+, 2-: 22 V / 30 mA

Voltage drop terminals 3+, 4- : approx. 5 V

Available voltage terminals 1+, 2-: ≥ 15 V at 20 mA

Output

Connection side control side

Connection terminals 5-, 6+

Load 0 ... 300 Ω (source mode)

Output signal 4 ... 20 mA or 1 ... 5 V (on 250 Ω, 0.1 % internal shunt)

Ripple 20 mV

Transfer characteristics

Deviation at 20 °C (68 °F)

19 ... 30 V DC

r

≤ 45 mA

r

4 ... 20 mA (sink mode), operating voltage 15.5 ... 26 V

rms

≤ ± 0.1 % incl. non-linearity and hysteresis (source mode 4 ... 20 mA)
≤ ± 0.2 % incl. non-linearity and hysteresis (sink mode 4 ... 20 mA)
≤ ± 0.2 % incl. non-linearity and hysteresis (source mode 1 ... 5 V)

Release date: 2020-09-23 Date of issue: 2020-09-23 Filename: 202927_eng.pdf

2

SMART Transmitter Power Supply KCD2-STC-1

Germany: [phone]Pepperl+Fuchs Group

Refer to "General Notes Relating to Pepperl+Fuchs Product Information".

USA: [phone] Singapore: [phone]

www.pepperl-fuchs.com [e-mail] [e-mail]

[e-mail]

Technical Data

Influence of ambient temperature < 2 µA/K (0 ... 60 °C (32 ... 140 °F)); < 4 µA/K (-20 ... 0 °C (-4 ... 32 °F)) (source mode

and sink mode 4 ... 20 mA)
< 0.5 mV/K (0 ... 60 °C (32 ... 140 °F)); < 1 mV/K (-20 ... 0 °C (-4 ... 32 °F)) (source
mode 1 ... 5 V)

Frequency range bandwidth at 0.5 Vss signal 0 ... 3 kHz (-3 dB)

Settling time ≤ 200 ms

Rise time/fall time ≤ 20 ms

Galvanic isolation

Input/Output reinforced insulation acc. to EN 50178, rated insulation voltage 300 V

Input/power supply reinforced insulation acc. to EN 50178, rated insulation voltage 300 V

Output/power supply reinforced insulation acc. to EN 50178, rated insulation voltage 300 V

eff

eff

eff

Indicators/settings

Display elements LED

Control elements DIP-switch

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 21:2006

Degree of protection IEC 60529:2001

Ambient conditions

Ambient temperature -20 ... 60 °C (-4 ... 140 °F)

Mechanical specifications

Degree of protection IP20

Connection screw terminals

Mass approx. 100 g

Dimensions 12.5 x 114 x 124 mm (0.5 x 4.5 x 4.9 inch) , housing type A2

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.

Release date: 2020-09-23 Date of issue: 2020-09-23 Filename: 202927_eng.pdf

3

PWR

9

10

867

5

S1

S3

S4

S2

III

1 2
3

4

KCD2-STC-1

LED green:
Power supply

Removable terminals
green

Removable terminals
green

Front view

Place for labeling

Switch 1 ... 4

SMART Transmitter Power Supply KCD2-STC-1

Germany: [phone]Pepperl+Fuchs Group

Refer to "General Notes Relating to Pepperl+Fuchs Product Information".

USA: [phone] Singapore: [phone]

www.pepperl-fuchs.com [e-mail] [e-mail]

[e-mail]

Assembly

Accessories

KFD2-EB2 Power Feed Module

UPR-03 Universal Power Rail with end caps and cover, 3 conductors, length: 2 m

UPR-03-M Universal Power Rail with end caps and cover, 3 conductors, length: 1,6 m

UPR-03-S Universal Power Rail with end caps and cover, 3 conductors, length: 0.8 m

K-DUCT-GY

K-DUCT-GY-UPR-03 Profile rail with UPR-03-* insert, 3 conductors, wiring comb field side gray

Release date: 2020-09-23 Date of issue: 2020-09-23 Filename: 202927_eng.pdf

4

Germany: [phone]Pepperl+Fuchs Group

Refer to "General Notes Relating to Pepperl+Fuchs Product Information".

USA: [phone] Singapore: [phone]

www.pepperl-fuchs.com [e-mail] [e-mail]

[e-mail]

SMART Transmitter Power Supply

S1

S3

S4

IIS2I

S1

S3

S4

IIS2I

PWR

S1

S3

S4

IIS2I

S1

S3

S4

IIS2I

Operating mode

Output as current source
4 mA ... 20 mA

Output as voltage source
1 V ... 5 V

Output as current sink
4 mA ... 20 mA

Application

The device supports the following SMART protocols:

•HART

•BRAIN

Configuration

KCD2-STC-1

Factory settings: output as current source 4 mA ... 20 mA

Release date: 2020-09-23 Date of issue: 2020-09-23 Filename: 202927_eng.pdf

5