Pepperl+Fuchs KFU8-DW-1.D Manual

Pepperl+Fuchs KFU8-DW-1.D Manual

Rotational speed monitor
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FACTORY AUTOMATION
MANUAL
KFU8-DW-1.D
Rotational speed monitor

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Summary of Contents for Pepperl+Fuchs KFU8-DW-1.D

  • Page 1 FACTORY AUTOMATION MANUAL KFU8-DW-1.D Rotational speed monitor...
  • Page 2 KFU8-DW-1.D With regard to the supply of products, the current issue of the following document is ap- plicable: The General Terms of Delivery for Products and Services of the Electrical Indus- try, published by the Central Association of the Electrical Industry (Zentralverband Elektrotechnik und Elektroindustrie (ZVEI) e.V.) in its most recent version as well as the...
  • Page 3: Table Of Contents

    KFU8-DW-1.D Safety ................... 4 Introduction ..................4 1.1.1 Contents .................... 4 1.1.2 Target Group, Personnel ..............4 1.1.3 Symbols Used..................4 Product Description ..............6 Device description ................6 Operation..................8 Operating mode ................... 8 Setup mode ..................9 Timer functions, reversing the detection direction of the output relay10 Service and Maintenance ............
  • Page 4: Safety

    KFU8-DW-1.D Safety Safety Introduction 1.1.1 Contents This document contains information that you need in order to use your product throughout the applicable stages of the product life cycle. These can include the following: Product identification ■ Delivery, transport, and storage ■...
  • Page 5 KFU8-DW-1.D Safety Warning Messages You will find warning messages, whenever dangers may arise from your actions. It is mandatory that you observe these warning messages for your personal safety and in order to avoid property damage. Depending on the risk level, the warning messages are displayed in descending order as...
  • Page 6: Product Description

    Insulation co-ordinates for specifying data on galvanic/electrical isolation are in accordance with DIN EN 50178: The KFU8-DW-1.D device is intended for use in enclosed electrical operating areas, to which only competent electrical personnel or properly instructed electrotechnical personnel have access or entry.
  • Page 7 KFU8-DW-1.D Product Description The device comprises 3 galvanically isolated circuits: Signal circuit ■ 24 V voltage supply, connections 4, 5 ■ Sensor/signal, connections 1, 2, 3, 7, 8, 9, 13, 14, 15 ■ Relay output circuit, connections 10, 11, 12 ■...
  • Page 8: Operation

    KFU8-DW-1.D Operation Operation Operating mode Signal frequency The rotational speed monitor processes input signals from 0.002 Hz ... 40 kHz, over 4 measurement ranges. Cycle durations of 25 µs to 500 s are evaluated. Signals not having a duty rate of 1:1 must have a minimum pulse pause or pulse duration of 12 s in order to be detected with certainty behind the input filter.
  • Page 9: Setup Mode

    KFU8-DW-1.D Operation Setup mode See chapter 5.4 Function selection 2 measurement functions are available: 1. Frequency measurement in Hz The established cycle duration of the input signal is converted into a frequency in Hz through the formation of a reciprocal value and displayed. Specify the hysteresis limits of the switching point in Hz as well.
  • Page 10: Timer Functions, Reversing The Detection Direction Of The Output Relay10

    Timer function and reversing the detection direction (factory preset: 0) The KFU8-DW-1.D rotational speed monitor in combination with a reversal of the direction of action can be adjusted to any one of 10 different settings in order to modify the switching behavior of the output relay.
  • Page 11 KFU8-DW-1.D Operation Function Function OFF delay OFF delay, inverted Defined ON time Defined ON time, inverted Pulse extension Pulse extension, inverted The ON delay causes the timer to start when the upper hysteresis limit is exceeded and the relay to trigger (retriggerable) only when the timer has run out.
  • Page 12 KFU8-DW-1.D Operation Start-up Relais Relais Relais Relais Relais Relais Relais Relais Relais Relais Relais Relais Relais Relais Relais Relais Figure 3.1 Timer functions, reversal of direction of action of the output relay...
  • Page 13: Service And Maintenance

    KFU8-DW-1.D Service and Maintenance Service and Maintenance The device is designed and constructed to function stable over long periods of time. For this reason, regular cleaning or maintenance is unnecessary.
  • Page 14: Anhang

    KFU8-DW-1.D Anhang Anhang Terminal assignment Term. 1: Sensor power supply Term. 10: Relay, normally open contact Term. 2: Trigger input for startup Term. 11: Relay, normally closed contact override Term. 3: Sensor power supply Term. 12: Relay root +24 V Term.
  • Page 15: Connection Diagram

    KFU8-DW-1.D Anhang Connection diagram NAMUR NAMUR Sensor Encoder NAMUR L+ L– L– NAMUR L- DC-3-wire DC-3-wire Bridge fitted: sensor, PNP sensor, NPN start-up bypass triggered by switching on the power supply Sensor power L– 13 supply 24 V DC Sensor power L–...
  • Page 16: Functional Description

    KFU8-DW-1.D Anhang Functional description Operating mode X=0: frequency measurement 0.002 Hz ... 40000 Hz X=1: rotational speed measurement 0.01 rpm ... 9999 rpm Preset at the factory: X=1 Number of pulses per revolution for rotational speed measurement (will be ignored for frequency measurement) 1 ≤...
  • Page 17 Twinsburg, Ohio 44087 · USA Tel. +1 330 4253555 E-mail: sales@us.pepperl-fuchs.com Asia Pacific Headquarters Pepperl+Fuchs Pte Ltd. Company Registration No. 199003130E Singapore 139942 Tel. +65 67799091 E-mail: sales@sg.pepperl-fuchs.com www.pepperl-fuchs.com Subject to modifications 129506 / DOCT0610D Copyright PEPPERL+FUCHS • Printed in Germany 9/2016...

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