Pepperl Fuchs KFU8-UFT-2.D.FA Data Sheet

Frequency Converter with Direction and Synchronization Monitor

KFU8-UFT-2.D.FA

Features

• 2-channel signal conditioner

• Universal usage at different power supplies

• Dry contact or NAMUR inputs

• Input frequency 1 mHz ... 1 kHz

• Current output 0/4 mA ... 20 mA

• Relay contact and transistor output

• Start-up override

• Configurable by PACTware or keypad

• Line fault detection (LFD)

Function

This signal conditioner analyzes 2 digital signals (NAMUR
sensor/mechanical contact) and functions as a rotation
direction indicator, slip monitor, frequency monitor or
synchronization monitor.

Each proximity sensor or switch controls a passive transistor
output. The 2 relay outputs indicate if the input signal is above
or below the trip value or the rotational direction.

The analog output can be programmed to be proportional to
the input frequency or slip differential.

The unit is easily programmed by the use of a keypad located
on the front of the unit or with the PACTware™ configuration
software.

Line fault detection of the field current is indicated by a red
LED.

n, refer to the manual and

Assembly

Front v iew

LED green:
Power supply

LED yellow/red:
Input pulses/
fault signal

LED yellow:
Output I ... IV

Programming jack

1324

KFU8-UFT-

2.D.FA

PWR1
IN/
CHK

12

OUT

324

RS232

9137

8

15

14

19 21

20

22 24

Removable
terminals
green

6

5

LC display

ESC

OK

Keypad

Place for labeling

121610

11

18

17
23

Removable
terminals
green

Connection

400 Ω ≤ R ≤ 2 kΩ

I

II

Release date 2018-05-08 08:06 Date of issue 2018-05-08 192334_eng.xml

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

USA: [phone] Germany: [phone]

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10 k Ω 10 k Ω

400 Ω ≤ R ≤ 2 kΩ

10 k Ω 10 k Ω

1+

3-

4+

6-

KFU8-UFT-2.D.FA

mA

10
11
12

16
17
18
19+

20-

21+

7-

8+
13+
14­15+

23
24

I

II

III

IV

V

AC/DC

1

Technical data KFU8-UFT-2.D.FA

General specifications

Signal type Digital Input

Supply

Connection terminals 23, 24

Rated voltage U

Rated current I

r

Power dissipation 2.2 W / 3.5 VA

Power consumption 2.5 W / 4 VA

Interface

Programming interface programming socket

Input

Connection side field side

Connection input I: terminals 1+, 3-

Input III, IV

Active/Passive I > 4 mA (for min. 100 ms) / I < 1.5 mA

Open circuit voltage/short-circuit
current

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 DC / 2 A

Mechanical life 5 x 107 switching cycles

Energized/De-energized delay approx. 20 ms / approx. 20 ms

Output III and IV signal , electronic output, passive

Contact loading 40 V DC

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

Output V 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 I ≥ 21.5 mA (acc. NAMUR NE43)

Programming interface

Connection programming socket

Interface RS 232

Transfer characteristics

Input I and II

Measurement range 0.001 ... 1000 Hz

Resolution slip monitoring: 1% frequency measurement: 0,1% of measured value; but >0.001Hz

Accuracy slip monitoring: 1% frequency measurement: 0.5% of measured value; but >0.001Hz

Measuring time frequency measurement: < 100 ms

Influence of ambient temperature 0.003 %/K (30 ppm)

Output I, II

Response delay ≤ 200 ms

Output V

Resolution < 10 µA

Accuracy < 30 µA

Influence of ambient temperature 0.005 %/K (50 ppm)

Galvanic isolation

Input I, II/other circuits reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 V

Input III, IV/power supply 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

Mutual output I, II, IV reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 V

Output III, IV/power supply reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 V

Output III, IV/input III, IV basic insulation according to IEC/EN 61010-1, rated insulation voltage 50 V

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

Output V/power supply reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 V

Release date 2018-05-08 08:06 Date of issue 2018-05-08 192334_eng.xml

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

USA: [phone] Germany: [phone]

[e-mail] [e-mail] [e-mail]

20 ... 90 V DC / 48 ... 253 V AC 50 ... 60 Hz

r

approx. 130 mA

input II: terminals 4+, 6­input III: terminals 13+, 14- (control input 1)
input IV: terminals 15+, 14- (control input 2)

18 V / 5 mA

output II: terminals 16, 17, 18
output III: terminals 19+, 20­output IV: terminals 21+, 20­output V: terminals 7-, 8+

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

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2

Technical data KFU8-UFT-2.D.FA

Interface/power supply reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 V

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

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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 61326-1:2006

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

General information

Supplementary information Observe the certificates, declarations of conformity, instruction manuals, and manuals where applicable. For

information see

Release date 2018-05-08 08:06 Date of issue 2018-05-08 192334_eng.xml

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

USA: [phone] Germany: [phone]

[e-mail] [e-mail] [e-mail]

3

Technical data KFU8-UFT-2.D.FA

Function

The device processes two input frequencies up to a max. of 1 kHz. The following functions are provided by the device:

• Frequency measurement with freely adjustable trip value monitoring for high and low alarm as well as for frequency-current­conversion (0/4 mA ... 20 mA)

• Slip monitoring: The slip is calculated from the two input frequencies at channel I and II. If the freely parameterisable trip value
is exceeded, the respective output switches.

• Rotation direction signalling: The rotation direction is evaluated from the two input signals with the same frequency and a
phase shift of 90°. The corresponding outputs switch according to the direction of rotation.

• The frequency monitoring can be used in combination with rotation direction signalling or slip monitoring.

• Synchronisation monitor: The synchronisation monitor compares the pulse counts of the two inputs. If the measured
difference in the pulses is greater than the programmed value the corresponding outputs are switching.

The two electronic outputs serve to repeat the input signals.

Maximum Switching Power of Output Contacts

I (A)

4

3

2

1

0.5

0.4

0.3

0.2

0.15

0.1

0 50 150 200 250100

Resistive load DC

Resistive load AC

1 max. 105 switching cycles

1

U (V)

Accessories

PACTware™

Device-specific drivers (DTM)

Adapter K-ADP1

Programming adapter for parameterisation via the serial RS 232 interface of a PC/Notebook

For programming, please use the new version of adapter K-ADP1 (part no. 181953, connector length 14mm). When using the
previous version K-ADP1 (connector length 18 mm) the plug is exposed by approx. 3 mm. The function is not affected.

Adapter K-ADP-USB

Programming adapter for parameterisation via the serial USB interface of a PC/Notebook

Release date 2018-05-08 08:06 Date of issue 2018-05-08 192334_eng.xml

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

USA: [phone] Germany: [phone]

[e-mail] [e-mail] [e-mail]

4