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
