Pepperl Fuchs Frequency Converter with Trip Values KFU8-UFC-1.D

1-channel signal conditioner

Universal usage at different power supplies

Input for 2- or 3-wire sensors, NAMUR sensors or dry contacts

Input frequency 1 mHz ... 10 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/EN 61508 / IEC/EN 61511

General specifications

Signal type Digital Input

Functional safety related parameters

Safety Integrity Level (SIL) SIL 2

Supply

Connection terminals 23, 24

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

Power dissipation/power consumption ≤ 2 W ; 2.5 VA / 2.2 W ; 3 VA

Interface

Programming interface programming socket

Input

Connection side field side

Connection Input I: 2-wire sensor: terminals 1+, 3- three wire sensor: terminals 1+, 2- and 3

input II: terminals 13+, 14- start-up override;

Input I 2- or 3-wire sensor, sensor acc. to EN 60947-5-6 (NAMUR) or mechanical contact

Open circuit voltage/short-circuit current 22 V / 40 mA

Input resistance 4.7 kΩ

Switching point/switching hysteresis logic 1: > 2.5 mA ; logic 0: < 1.9 mA

Pulse duration > 50 µs

Input frequency 0.001 ... 10000 Hz

Line fault detection breakage I ≤ 0.15 mA; short-circuit I > 4 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: blocked output (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)

Transfer characteristics

Input I

Measuring range 0.001 ... 10000 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 Veff

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

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

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

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

Start-up override/power supply reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff

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

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

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

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) (W x H x D) , housing type C2

Height 119 mm

Width 40 mm

Depth 115 mm

Mounting on 35 mm DIN mounting rail acc. to EN 60715:2001