Pepperl Fuchs KFD2-UFC-Ex1.D DATA SHEET

24 V DC

2

Zone 2

Div. 2

Zone 0, 1, 2
Div. 1, 2

KFD2-UFC-Ex1.D

3-

1+

16
17
18

10
11
12

I

II

19+
20-

III

13+
14-

8+
7-

IV

24 V DC

23+
24-

Power Rail

24 V DCERR

mA

10 kΩ 10 kΩ

400 Ω ≤ R ≤ 2 kΩ

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]

Frequency Converter with Trip Values
KFD2-UFC-Ex1.D

1-channel isolated barrier

<

24 V DC supply (Power Rail)

<

Input for NAMUR sensors or dry contacts

<

Input frequency 1 mHz ... 5 kHz

<

Current output 0/4 mA ... 20 mA

<

Relay contact and transistor output

<

Start-up override

<

Line fault detection (LFD)

<

Up to SIL 2 acc. to IEC 61508/IEC 61511

<

Function

This isolated barrier is used for intrinsic safety applications.
The device is a universal frequency converter that changes a digital input signal into a proportional free adjustable 0/4 mA ... 20 mA analog output
signal and functions as a switch amplifier and a trip alarm.
The functions of the switch outputs (2 relay outputs and 1 potential free transistor output) are easily adjustable [trip value display (min/max alarm),
serially switched output, pulse divider output, error signal output].
The device is easily configured by the use of keypad or with the PACTware configuration software.
A fault is signalized by LEDs acc. to NAMUR NE44 and a separate collective error message output.
For additional information, refer to the manual and www.pepperl-fuchs.com.

Connection

Technical Data

General specifications

Signal type Digital Input

Functional safety related parameters

Safety Integrity Level (SIL) SIL 2

Supply

Connection terminals 23+, 24- or power feed module/Power Rail
Rated voltage U
Rated current I
Power dissipation/power consumption ≤ 2 W / 2.2 W

Release date: 2020-09-23 Date of issue: 2020-09-23 Filename: 231194_eng.pdf

r

r

20 ... 30 V DC
approx. 100 mA

1

Frequency Converter with Trip Values KFD2-UFC-Ex1.D

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

Interface

Programming interface programming socket

Input

Connection side field side
Connection Input I: intrinsically safe: terminals 1+, 3-

Input I sensor acc. to EN 60947-5-6 (NAMUR) or mechanical contact

Pulse duration > 50 µs
Input frequency 0.001 ... 5000 Hz
Line fault detection breakage I ≤ 0.15 mA; short-circuit I > 6.5 mA

Input II startup override: 1 ... 1000 s, adjustable in steps of 1 s

Active/Passive I > 4 mA (for min. 100 ms) / I < 1.5 mA
Open circuit voltage/short-circuit current 18 V / 5 mA

Output

Connection side control side
Connection output I: terminals 10, 11, 12

Output I, II signal, relay

Contact loading 250 V AC / 2 A / cos φ ≥ 0.7 ; 40 V DC / 2 A
Mechanical life 5 x 107 switching cycles
Energized/De-energized delay approx. 20 ms / approx. 20 ms

Output III electronic output, passive

Contact loading 40 V DC
Signal level 1-signal: (L+) - 2.5 V (50 mA, short-circuit/overload proof)

Output IV analog

Current range 0 ... 20 mA or 4 ... 20 mA
Open loop voltage max. 24 V DC
Load max. 650 Ω
Fault signal downscale I ≤ 3.6 mA , upscale ≥ 21.5 mA (acc. NAMUR NE43)

Collective error message Power Rail

Transfer characteristics

Input I

Measurement range 0.001 ... 5000 Hz
Resolution 0.1 % of the measurement value , ≥ 0.001 Hz
Accuracy 0.1 % of the measurement value , > 0.001 Hz
Measuring time < 100 ms
Influence of ambient temperature 0.003 %/K (30 ppm)

Output I, II

Response delay ≤ 200 ms

Output IV

Resolution < 10 µA
Accuracy < 20 µA
Influence of ambient temperature 0.005 %/K (50 ppm)

Galvanic isolation

Input I/other circuits reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 V
Output I, II/other circuits reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 V
Mutual output I, II, III reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 V
Output III/power supply and collective error basic insulation according to IEC/EN 61010-1, rated insulation voltage 50 V
Output III/start-up override basic insulation according to IEC/EN 61010-1, rated insulation voltage 50 V
Output III/IV basic insulation according to IEC/EN 61010-1, rated insulation voltage 50 V
Output IV/power supply and collective error functional insulation acc. to IEC 62103, rated insulation voltage 50 V

Release date: 2020-09-23 Date of issue: 2020-09-23 Filename: 231194_eng.pdf

Input II: non-intrinsically safe: terminals 13+, 14-

output II: terminals 16, 17, 18
outout III: terminasl 19+, 20­output IV: terminals 8+, 7-

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

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2

Frequency Converter with Trip Values KFD2-UFC-Ex1.D

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

Start-up override/power supply and collective
error

Interface/power supply and collective error functional insulation acc. to IEC 62103, rated insulation voltage 50 V

functional insulation acc. to IEC 62103, rated insulation voltage 50 V

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Interface/output III basic insulation according to IEC/EN 61010-1, rated insulation voltage 50 V

Indicators/settings

Display elements LEDs , display
Control elements Control panel
Configuration via operating buttons

via PACTware

Labeling space for labeling at the front

Directive conformity

Electromagnetic compatibility

Directive 2014/30/EU EN 61326-1:2013 (industrial locations)

Low voltage

Directive 2014/35/EU EN 61010-1:2010

Conformity

Electromagnetic compatibility NE 21:2006
Degree of protection IEC 60529:2001
Input EN 60947-5-6:2000

Ambient conditions

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

Mechanical specifications

Degree of protection IP20
Connection screw terminals
Mass 300 g
Dimensions 40 x 119 x 115 mm (1.6 x 4.7 x 4.5 inch) , housing type C3
Mounting on 35 mm DIN mounting rail acc. to EN 60715:2001

Data for application in connection with hazardous areas

EU-type examination certificate TÜV 99 ATEX 1471

Marking 1 II (1)G [Ex ia Ga] IIC

1 II (1)D [Ex ia Da] IIIC
1 I (M1) [Ex ia Ma] I

Supply

Maximum safe voltage U

40 V DC (Attention! Um is no rated voltage.)

m

Input I terminals 1+, 3-: Ex ia

Voltage U
Current I
Power P

o

o

o

10.1 V

13.5 mA
34 mW (linear characteristic)

Input II terminals 13+, 14- non-intrinsically safe

Maximum safe voltage U

m

40 V (Attention! The rated voltage can be lower.)

Output I, II terminals 10, 11, 12; 16, 17, 18 non-intrinsically safe

Maximum safe voltage U

253 V (Attention! The rated voltage can be lower.)

m

Contact loading 253 V AC/2 A/cos φ > 0.7; 40 V DC/2 A resistive load (TÜV 99 ATEX 1471)

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Output III terminals 19+, 20- non-intrinsically safe

Maximum safe voltage U

m

U

40 V (Attention! Um is no rated voltage.)

m

Output IV terminals 8+, 7- non-intrinsically safe

Maximum safe voltage U

40 V DC (Attention! Um is no rated voltage.)

m

Interface RS 232

Maximum safe voltage U

40 V (Attention! Um is no rated voltage.)

m

Certificate TÜV 02 ATEX 1885 X

Marking 1 II 3G Ex nA nC IIC T4 Gc

Output I, II

Contact loading 50 V AC/2 A/cos φ > 0.7; 40 V DC/1 A resistive load

Galvanic isolation

Release date: 2020-09-23 Date of issue: 2020-09-23 Filename: 231194_eng.pdf

3

ESC

OK

KFD2-UFC­Ex1.D

RS232

PWR1

1 2

3

IN/
CHK

OUT

19 21

15

9

13

7

20

14

8

22 24

18

12

16

10

23

17

11

132 465

Front view

Removable terminals
green

Removable terminal
blue

Keypad

LC display

LED green:
Power supply

LED yellow/red:
Input pulses/
fault signal

LED yellow:
Output I ... III

Programming jack

Place for labeling

Frequency Converter with Trip Values KFD2-UFC-Ex1.D

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

Input I/other circuits safe electrical isolation acc. to IEC/EN 60079-11, voltage peak value 375 V

Directive conformity

Directive 2014/34/EU EN 60079-0:2012+A11:2013 , EN 60079-11:2012 , EN 60079-15:2010

International approvals

FM approval

Control drawing 16-538FM-12
UL approval E223772
IECEx approval IECEx TUN 04.0007

Approved for [Ex ia Ga] IIC, [Ex ia Da] IIIC, [Ex ia Ma] I

General information

Supplementary information Observe the certificates, declarations of conformity, instruction manuals, and manuals

where applicable. For information see www.pepperl-fuchs.com.

Assembly

Matching system components

DTM Interface
Technology

PACTware 5.X FDT Framework

K-ADP-USB

KFD2-EB2 Power Feed Module

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

Release date: 2020-09-23 Date of issue: 2020-09-23 Filename: 231194_eng.pdf

4

Frequency Converter with Trip Values KFD2-UFC-Ex1.D

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]

Matching system components

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-BU

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

Accessories

KF-ST-5GN

KF-ST-5BU

Release date: 2020-09-23 Date of issue: 2020-09-23 Filename: 231194_eng.pdf

5

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]

Frequency Converter with Trip Values

0.1

1

0.2

0.15

2

0.3

3

0.4

4

0.5

0 50 150 200 250100

I (A)

U (V)

1

Characteristic Curve

Maximum Switching Power of Output Contacts

Resistive load DC

Resistive load AC

1 max. 105 switching cycles

KFD2-UFC-Ex1.D

Release date: 2020-09-23 Date of issue: 2020-09-23 Filename: 231194_eng.pdf

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