The Pepperl & Fuchs KFU8‑DW‑1.D (P/N 190149) is a precision rotation/speed monitor and signal conditioner designed for industrial automation and safety applications. It accepts signals from proximity sensors, encoders, or NAMUR contacts and converts them into configurable relay outputs and analog/digital signals with user-defined thresholds, timers, and fault detection—perfect for overspeed/underspeed monitoring up to 40 kHz.

Key Features & Technical Specs

Feature	Specification
Input Range	0.002 Hz … 40 kHz (cycle/period mode), accepts 2–4 wire sensors, encoders, NAMUR dry contacts
Display & Interface	4-digit, 7-segment LED with four front push-buttons for menu parameters
Alarm Output	1 pre-set relay (changeover), LED indication, with 10 timer types (e.g. delay on/off, pulse stretching)
Sensor Power Supply	19–31 V DC (≤ 30 mA), short‑circuit protected
Loops & Fault Detection	Line-fault detection, signal inversion option, period measurement mode
Power Supply	24 V DC typical; AC options available, ≤ 100 mA consumption
Safety & Diagnostics	SIL 2 rated; reinforced galvanic isolation between circuits; front LED status
Mounting / Housing	DIN-rail (35 mm), IP20, ~40 mm wide, operating –25…+60 °C

Pepperl &amp; Fuchs – KFU8-DW-1.D (190149) – Rotation &amp; Speed Monitor, SIL 2 Signal

Pepperl & Fuchs – KFU8-DW-1.D (190149) – Rotation & Speed Monitor, SIL 2 Signal