Pepperl+Fuchs
Pepperl+Fuchs KFD2-UFC-Ex1.D – Universal Frequency Converter
Pepperl+Fuchs KFD2-UFC-Ex1.D – Universal Frequency Converter
Manufacturer part number: KFD2-UFC-Ex1.D
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ENQUIRE NOWProduct Overview
The Pepperl+Fuchs KFD2-UFC-Ex1.D is a 1-channel isolated barrier frequency converter with trip values. It evaluates pulse and frequency signals from NAMUR sensors or dry contacts in the hazardous area over an input range of 1 mHz to 5 kHz and converts them into a 0/4 … 20 mA analogue output.
Two relay contact outputs and a transistor output can be programmed as limit values for overspeed, underspeed or standstill monitoring, and a start-up override input suppresses alarms while machinery runs up. The module is supplied at 24 V DC via the Power Rail, configured by keypad or PACTware, and suitable for applications up to SIL 2.
Key Features
- Manufacturer: Pepperl+Fuchs
- Model: KFD2-UFC-Ex1.D
- Product type: Universal Frequency Converter
- 1-channel isolated barrier
- Input for NAMUR sensors or dry contacts
- Input frequency 1 mHz … 5 kHz
- 0/4 … 20 mA current output
- 2 relay contact outputs and 1 transistor output
- Start-up override input
- Line fault detection; up to SIL 2 to IEC/EN 61508 / IEC/EN 61511
Technical Specifications
| Manufacturer | Pepperl+Fuchs |
|---|---|
| Part number | KFD2-UFC-Ex1.D |
| Product type | 1-channel frequency converter with trip values / isolated barrier |
| Signal type | Digital (pulse/frequency) input |
| Rated supply voltage | 20 … 30 V DC (Power Rail or terminals 23+, 24-) |
| Power consumption | 2.2 W |
| Input I | NAMUR (EN 60947-5-6) or mechanical contact, terminals 1+, 3- |
| Input frequency | 0.001 … 5000 Hz; pulse duration > 50 µs |
| Input II | Start-up override 1 … 1000 s (non-intrinsically safe) |
| Outputs I, II | Relay; 253 V AC / 2 A / cos φ ≥ 0.7; 40 V DC / 2 A |
| Output III | Electronic (transistor) output, passive, 40 V DC |
| Output IV | 0 … 20 mA or 4 … 20 mA, load max. 650 Ω; NE43 fault signal |
| Accuracy | 0.1 % of measured value |
| Configuration | Front keypad and display, or PACTware |
| Functional safety | SIL 2 (IEC/EN 61508 / IEC/EN 61511) |
| Ambient temperature | -20 … 60 °C |
| Degree of protection | IP20 |
| Dimensions | 40 x 119 x 115 mm (W x H x D), housing type C2 |
| Mass | 300 g |
| Mounting | 35 mm DIN mounting rail (EN 60715) |
| ATEX | TÜV 99 ATEX 1471 — II (1)G [Ex ia Ga] IIC, II (1)D [Ex ia Da] IIIC, I (M1) [Ex ia Ma] I; TÜV 02 ATEX 1885 X — II 3G Ex nA nC IIC T4 Gc |
| IECEx | IECEx TUN 04.0007, IECEx TSA 18.0007X |
| Other approvals | UL (E223772) |
Specifications are taken from Pepperl+Fuchs manufacturer data. Always confirm critical values — particularly hazardous-area and functional-safety data — against the current datasheet, certificates and instruction manual before installation.
Applications
- Speed and overspeed monitoring of pumps, fans and conveyors
- Standstill and underspeed detection
- Pulse-output flowmeter rate signals
- SIL 2 speed monitoring
Installation and Compatibility
DIN rail mounting (40 mm wide) with 24 V DC from the Power Rail or terminals 23+/24-. Sensor connects to terminals 1+/3-, start-up override to 13+/14-. Relays on 10–12 and 16–18, transistor output on 19+/20-, analogue output on 8+/7-.
Frequently Asked Questions
What is the Pepperl+Fuchs KFD2-UFC-Ex1.D?
The Pepperl+Fuchs KFD2-UFC-Ex1.D is a 1-channel isolated barrier frequency converter with trip values. It evaluates pulse and frequency signals from NAMUR sensors or dry contacts in the hazardous area over an input range of 1 mHz to 5 kHz and converts them into a 0/4 … 20 mA analogue output.
What supply does the KFD2-UFC-Ex1.D need?
20 … 30 V DC (Power Rail or terminals 23+, 24-).
How do I get a price for the KFD2-UFC-Ex1.D?
This product is sold on a price on availability basis. Use the enquiry form on this page with your quantity and application details and the Valves UK team will reply with pricing and lead time.
Technical Documentation
- Pepperl+Fuchs KFD2-UFC-Ex1.D datasheet (PDF)
- KFD2-UFC-Ex1.D on the Pepperl+Fuchs website (certificates, manuals and drawings)
Related Products
- Pepperl+Fuchs KFU8-UFC-Ex1.D – Universal Frequency Converter
- Pepperl+Fuchs KFD2-CRG2-Ex1.D – Transmitter Power Supply with Trip Values
- View the full Pepperl+Fuchs range at Valves UK
Price and Availability
Price on Availability (POA)
Contact Valves UK for pricing, product availability and technical enquiries regarding the Pepperl+Fuchs KFD2-UFC-Ex1.D. Please include your required quantity and any relevant application details when submitting your enquiry.
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