Pepperl Fuchs KCD2-ST-Ex2.SP DATASHEET

Switch Amplifier

2

KCD2-ST-Ex2.SP

5+

1+

2-

6+

Zone 0, 1, 2
Div. 1, 2

Zone 2

Div. 2

24 V DC

9+

10-

Power Rail

24 V DCERR

10 kΩ

400 Ω ≤ R ≤ 2 kΩ

3+

4-

10 kΩ

400 Ω ≤ R ≤ 2 kΩ

I

II

I

II

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-ST-Ex2.SP

2-channel isolated barrier

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24 V DC supply (Power Rail)

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Dry contact or NAMUR inputs

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2 active transistor outputs

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Reversible mode of operation

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Line fault detection (LFD)

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Housing width 12.5 mm

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Connection via spring terminals with push-in connection

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technology
Up to SIL 2 acc. to IEC 61508

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Function

This isolated barrier is used for intrinsic safety applications.
The device transfers digital signals (NAMUR sensors or dry contacts) from a hazardous area to a safe area.
Each input controls an active transistor output.
Via switches the mode of operation can be reversed and the line fault detection can be switched off.
A fault is signalized by LEDs acc. to NAMUR NE44 and a separate collective error message output.

Connection

Release date: 2020-09-23 Date of issue: 2020-09-23 Filename: 242097_eng.pdf

1

12.5

114

119

Switch Amplifier KCD2-ST-Ex2.SP

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 Digital 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 including maximum power dissipation in the output

Input

Connection side field side

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

Rated values acc. to EN 60947-5-6 (NAMUR)

Open circuit voltage/short-circuit current approx. 10 V DC / approx. 8 mA

Switching point/switching hysteresis 1.2 ... 2.1 mA / approx. 0.2 mA

Line fault detection breakage I ≤ 0.1 mA , short-circuit I ≥ 6.5 mA

Pulse/Pause ratio min. 100 µs / min. 100 µs

Output

Connection side control side

Connection terminals 5, 6

Rated voltage U

Rated current I

Response time ≤ 200 µs

Signal level 1-signal: (supply voltage) - 3 V max. for 50 mA

Output I signal ; Transistor

Output II signal ; Transistor

Collective error message Power Rail

Transfer characteristics

Release date: 2020-09-23 Date of issue: 2020-09-23 Filename: 242097_eng.pdf

19 ... 30 V DC

r

30 ... 20 mA + I

r

30 V DC

r

50 mA

r

out

0-signal: blocked output (off-state current ≤ 10 µA)

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