Pepperl Fuchs KFD2-UFC-Ex1.D DATA SHEET

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

24 V DC

2

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

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<![endif]>Release date: 2020-09-23 Date of issue: 2020-09-23 Filename: 231194_eng.pdf

KFD2-UFC-EX1.D

400 Ω ≤ R ≤ 2 KΩ

1+

10

11

I

12

10 KΩ

10 KΩ

3-

16

17

II

18

19+

III

20-

IV

MA

8+

7-

13+

14-

23+

24 V DC

24-

ZONE 0, 1, 2

ZONE 2

ERR 24V DC

DIV. 1, 2

POWER RAIL

DIV. 2

Technical Data

General specifications

Signal type

Digital Input

Functional safety related parameters

Safety Integrity Level (SIL)

SIL 2

Supply

Connection

terminals 23+, 24or power feed module/Power Rail

Rated voltage

Ur

20 ... 30 V DC

Rated current

Ir

approx. 100 mA

Power dissipation/power consumption

≤ 2 W / 2.2 W

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

Pepperl+Fuchs Group	USA: [phone]	Germany: [phone]	Singapore: [phone]	1
www.pepperl-fuchs.com	[e-mail]	[e-mail]	[e-mail]

	Frequency Converter with Trip Values			KFD2-UFC-Ex1.D
		Technical Data
		Interface
		Programming interface		programming socket
		Input
		Connection side		field side
		Connection		Input I: intrinsically safe: terminals 1+, 3-
				Input II: non-intrinsically safe: terminals 13+, 14-
		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 II: terminals 16, 17, 18
				outout III: terminasl 19+, 20-
				output IV: terminals 8+, 7-
		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)
				0-signal: switched off (off-state current ≤ 10 µA)
		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
<![if ! IE]> <![endif]>eng.pdf		Measuring time		< 100 ms
		Output I, II		0.003 %/K (30 ppm)
		Influence of ambient temperature
<![if ! IE]> <![endif]>231194
		Response delay		≤ 200 ms
<![if ! IE]> <![endif]>Filename:		Output IV
		Resolution		< 10 µA
<![if ! IE]> <![endif]>-09-23		Accuracy		< 20 µA
		Influence of ambient temperature		0.005 %/K (50 ppm)
<![if ! IE]> <![endif]>2020		Galvanic isolation
<![if ! IE]> <![endif]>issue:of
		Input I/other circuits		reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff
<![if ! IE]> <![endif]>Date		Output I, II/other circuits		reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff
		Mutual output I, II, III		reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff
<![if ! IE]> <![endif]>09-23
		Output III/power supply and collective error		basic insulation according to IEC/EN 61010-1, rated insulation voltage 50 Veff
<![if ! IE]> <![endif]>-
<![if ! IE]> <![endif]>2020		Output III/start-up override		basic insulation according to IEC/EN 61010-1, rated insulation voltage 50 Veff
<![if ! IE]> <![endif]>date:		Output III/IV		basic insulation according to IEC/EN 61010-1, rated insulation voltage 50 Veff
<![if ! IE]> <![endif]>Release		Output IV/power supply and collective error		functional insulation acc. to IEC 62103, rated insulation voltage 50 Veff

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

	Pepperl+Fuchs Group	USA: [phone]	Germany: [phone]	Singapore: [phone]	2
	www.pepperl-fuchs.com	[e-mail]	[e-mail]	[e-mail]