Pepperl+Fuchs KFU8-UFC-1.D | Frequency Converter with Trip Values | 1 mHz–10 kHz

Pepperl+Fuchs KFU8-UFC-1.D | Versatile Frequency Converter for Industrial Automation

Overview

The KFU8-UFC-1.D is a 1-channel frequency converter from Pepperl+Fuchs, designed to convert frequency signals into analog current outputs. It supports a wide input frequency range from 1 mHz to 10 kHz and offers 0/4–20 mA analog output, along with relay and transistor outputs for trip value monitoring. Certified up to SIL 2 according to IEC/EN 61508/61511, this device ensures reliable performance in safety-critical applications.

Key Features

• Input Frequency Range: 1 mHz to 10 kHz

• Analog Output: 0/4–20 mA, adjustable

• Digital Outputs:

  • Two relay contacts (250 V AC / 2 A)

  • One passive transistor output (40 V DC)

• Sensor Compatibility: 2- or 3-wire sensors, NAMUR sensors, or dry contacts

• Start-Up Override: Adjustable from 1 to 1000 s

• Line Fault Detection (LFD): Monitors for wire breakage and short circuits

• Power Supply: 20–90 V DC or 48–253 V AC, 50/60 Hz

• Safety Certification: SIL 2 (IEC/EN 61508 / IEC/EN 61511)

• Configuration: Via front panel or PACTware software

• Housing: DIN rail mountable, IP20 protection

• Part Number: 231195

Technical Specifications

• Input:

  • Open Circuit Voltage: 22 V

  • Short-Circuit Current: 40 mA

  • Input Resistance: 4.7 kΩ

  • Switching Thresholds: Logic 1 > 2.5 mA; Logic 0 < 1.9 mA

  • Pulse Duration: > 50 µs

• Analog Output:

  • Current Range: 0–20 mA or 4–20 mA

  • Load Resistance: Max. 650 Ω

  • Fault Signal: Downscale ≤ 3.6 mA; Upscale ≥ 21.5 mA (per NAMUR NE43)

• Digital Outputs:

  • Relay Contacts: 250 V AC / 2 A or 40 V DC / 2 A

  • Transistor Output: 1-signal: (L+) -2.5 V (50 mA, short-circuit/overload proof); 0-signal: Off-state current ≤ 10 µA

• Response Time: ≤ 200 ms

• Accuracy: ±0.1% of measurement value

• Ambient Temperature Range: -20 °C to +60 °C

• Dimensions (W×H×D): 40 × 119 × 115 mm

• Weight: Approximately 300 g

• Mounting: 35 mm DIN rail (EN 60715)

• Protection Class: IP20

Applications

• Rotational Speed Monitoring

• Conveyor Belt Speed Control

• Pump and Fan Speed Regulation

• Industrial Automation Systems

• Process Control and Monitoring

Why Choose Pepperl+Fuchs KFU8-UFC-1.D?

• Wide Input Frequency Range: Suitable for various sensor types and applications

• Multiple Output Options: Analog and digital outputs for flexible integration

• Safety Certified: SIL 2 compliance ensures reliability in safety-critical systems

• User-Friendly Configuration: Easy setup via front panel or PACTware software

• Robust Design: Durable housing with IP20 protection for industrial environments

NEW product in original sealed packaging. The product may be of older version or design. The packaging may have markings, signs of discoloration, and wear. DDPARTSSOLUTION Warranty: 1 Year. Manufacturer's Warranty and Support NEVER apply