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]

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

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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