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  5. Safety Integrity Level 2
  6. KFD2-DWB-1.D

KFD2-DWB-1.D Rotation Speed Monitor

Key Benefits at a Glance

  • 1-channel signal conditioner
  • 24 V DC supply (Power Rail)
  • Dry contact or NAMUR inputs
  • Input frequency 1 mHz ... 12 kHz
  • 2 relay contact outputs
  • Start-up override
  • Configurable by keypad
  • Line fault detection (LFD)
  • Up to SIL 2 acc. to IEC/EN 61508 / IEC/EN 61511

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Please contact us for exact delivery estimation.6 533,00 CZK Net price—your individual price will be shown during checkout process.
Product photo: Rotation Speed Monitor KFD2-DWB-1.D
Product photo: Rotation Speed Monitor KFD2-DWB-1.D
Product Compliance: USA - cULus
Functional Safety: Safety Integrity Level - 2
Approval
Product Compliance: Europe – CE
Note

All product-related documents, such as certificates, declarations of conformity, etc., which were issued prior to the conversion under the name Pepperl+Fuchs GmbH or Pepperl+Fuchs AG, also apply to Pepperl+Fuchs SE.

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DatasheetFunctionClassificationInformative LiteratureProduct DocumentationDesign / SimulationApprovalsRelated Products

Technical data of KFD2-DWB-1.D

Signal typeDigital Input
Safety Integrity Level (SIL)SIL 2
Connectionterminals 23+, 24- or power feed module/Power Rail
Rated voltageUr20 ... 30 V DC
Rated currentIrapprox. 100 mA
Power dissipation/power consumption≤ 1.8 W / 1.8 W
Connection sidefield side
ConnectionInput I: 2-wire sensor: terminals 1+, 3- three wire sensor: terminals 1+, 2- and 3
input II: terminals 13+, 14- start-up override;
Input I2- or 3-wire sensor, sensor acc. to EN 60947-5-6 (NAMUR) or mechanical contact
Open circuit voltage/short-circuit current22 V / 40 mA
Input resistance4.7 kΩ
Switching point/switching hysteresislogic 1: > 2.5 mA ; logic 0: < 1.9 mA
Pulse duration> 50 µs
Input frequency0.001 ... 12000 Hz
Line fault detectionbreakage I ≤ 0.15 mA; short-circuit I > 4 mA
Input IIstartup override: 1 ... 1000 s, adjustable in steps of 1 s
Active/PassiveI > 4 mA (for min. 100 ms) / I < 1.5 mA
Open circuit voltage/short-circuit current18 V / 5 mA
Connection sidecontrol side
Connectionoutput I: terminals 10, 11, 12
output II: terminals 16, 17, 18
Output I, IIsignal, relay
Contact loading250 V AC / 2 A / cos φ ≥ 0.7 ; 40 V DC / 2 A
Mechanical life5 x 107 switching cycles
Energized/De-energized delayapprox. 20 ms / approx. 20 ms
Collective error messagePower Rail
Input I
Measuring range0.001 ... 12000 Hz
Resolution0.1 % of measured value , ≥ 0.001 Hz
Accuracy0.1 % of measured value , > 0.001 Hz
Measuring time< 100 ms
Influence of ambient temperature0.003 %/K (30 ppm)
Output I, II
Response delay≤ 200 ms
Input I/other circuitsreinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff
Output I, II against eachotherreinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff
Output I, II/other circuitsreinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff
Start-up override/power supply and collective errorfunctional insulation acc. to IEC 62103, rated insulation voltage 50 Veff
Display elementsLEDs , display
Control elementsControl panel
Configurationvia operating buttons
Labelingspace for labeling at the front
Electromagnetic compatibility
Directive 2014/30/EUEN 61326-1:2013 (industrial locations)
Low voltage
Directive 2014/35/EUEN 61010-1:2010
Electromagnetic compatibilityNE 21:2006
Degree of protectionIEC 60529:2001
Ambient temperature-20 ... 60 °C (-4 ... 140 °F)
Degree of protectionIP20
Connectionscrew terminals
Mass300 g
Dimensions40 x 119 x 115 mm (1.6 x 4.7 x 4.5 inch) (W x H x D) , housing type C2
Height119 mm
Width40 mm
Depth115 mm
Mountingon 35 mm DIN mounting rail acc. to EN 60715:2001
CertificatePF 08 CERT 1216 X
MarkingEx-Hexagon II 3G Ex nA nC IIC T4 Gc
Output I, II
Contact loading50 V AC/2 A/cos φ > 0.7; 40 V DC/1 A resistive load
Ambient conditions
Ambient temperature-20 ... 50 °C (-4 ... 122 °F)
Directive conformity
Directive 2014/34/EUEN 60079-0:2012+A11:2013 , EN 60079-15:2010
UL approvalE223772
Supplementary informationObserve the certificates, declarations of conformity, instruction manuals, and manuals where applicable. For information see www.pepperl-fuchs.com.
General Notes
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