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...
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...
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.
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.
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.
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...
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.
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...