Datasheet

ManualsBrandsPepperl+Fuchs ManualsAutomationMonitoring Relays Speed

Subject to reasonable modifications due to technical advances. Copyright Pepperl+Fuchs, Printed in Germany

Pepperl+Fuchs Group • Tel.: Germany +49 621 776-0 • USA +1 330 4253555 • Singapore +65 67799091 • Internet http://www.pepperl-fuchs.com

KHU8-DW-1.DRotational speed controller

Date of issue 2003-07-23 035742_ENG.xml

Features

Model number

KHU8-DW-1.D

• Rotational speed monitoring up to 5

kHz

• 1 pre-select value with relay output

and LED indicator

• Multi-range power pack

• 2-, 3-, 4-wire and NAMUR sensors as

well as rotary encoder connectable

•Start-up delay

• Auxiliary power output for sensors

• Connection via Power Rail

• Menu driven operation via 4 front

keys

• Period measurement

• Indication in Hz or 1/min

• Password protection

• Output signal can be inverted

• Display devices can be set between

0.1 ... 2.5 sec.

• Protection degree IP20

Technical data

General specifications

Pre-selection single

Programming keypad-driven menu

Supply

Rated voltage 24 V DC +15 % / -10 %; 115 V AC ±10 %; 230 V AC

±10 %

Power consumption 5 W / 5 VA

Indicators/operating means

Type 7-segment LED display, red

Number of decades 4

Display value digit height 7 mm, in Hz or 1/min

LED yellow switching state

Decimal point freely adjustable

Accuracy ± 1 digit

Input

Control input NAMUR: 1,2 mA d x d 2,1 mA (terminal 8, 9), max. 8.2 V

and 6.5 mA, impedance 1.2 kOhm

PNP sensor: 12 V (terminal 15), max. 30 V, impedance

2.8 kOhm

NPN sensor: 12 V (terminal 14), impedance 3.3 kOhm

Trigger input 12 V (terminal 2), max. 30 V, impedance 2.8 kOhm

Pulse duration 20 Ps

Output

Relay 1 changeover contact

Sensor supply 24 V DC ± 10 %, 30 mA , short-circuit proof

Contact loading 250 V AC/2 A/ cosM t 0.7

40 V DC/2 A

Duration of momentary impulse 0 ... 999.9 s

Measuring error up to 100 Hz< 0.1%

up to 1 kHz< 0.3%

up to 5 kHz< 1.5%

Delay times

Time delay before availability d 400 ms

Start-up override 0,1 ... 999,9 s (External trigger signal)

Relay d 20 ms

Timer function ON/OFF delay

Ambient conditions

Ambient temperature -25 ... 70 °C (248 ... 343 K)

Storage temperature -40 ... 85 °C (233 ... 358 K)

Mechanical specifications

Lifetime 30 x 10

switching cycles

Connection self-opening apparatus connection terminals, max. core

cross-section 0.34 ... 2.5 mm

Dimensions 40 mm x 92.5 mm x 115 mm

Construction type modular terminal housing in Makrolon, System KH

Mounting snap-on to 35 mm standard rail or screw fixing

Summary of content (5 pages)

PAGE 1
Rotational speed controller KHU8-DW-1.D Technical data General specifications Pre-selection Programming Supply Rated voltage Power consumption 24 V DC +15 % / -10 %; 115 V AC ±10 %; 230 V AC ±10 % 5 W / 5 VA Indicators/operating means Type Number of decades Display value LED yellow Decimal point Accuracy 7-segment LED display, red 4 digit height 7 mm, in Hz or 1/min switching state freely adjustable ± 1 digit Input Control input Model number KHU8-DW-1.D KHU8-DW-1.
PAGE 2
KHU8-DW-1.D Rotational speed controller Indicating / Operating means 115 Yellow LED, Relay switch state indication 1 2 3 4 5 6 Drehzahlwächter Speed monitor Output Control keys Mode + Enter – 92.
PAGE 3
Rotational speed controller KHU8-DW-1.D Notes Device description The KHU8-DW-1.D Speed Monitor is a device for the indication and monitoring of periodic signals, which occur in almost all areas of automation and process technology, i. e. of frequencies in general and rotational speeds in special cases. The input signals are evaluated in accordance with the cycle method, i. e. by measurement of the period of oscillation and conversion into frequency or rotational speed by a very fast m controller.
PAGE 4
KHU8-DW-1.D Rotational speed controller Timer functions, reversal of operating direction of the output relay tStart-up Function No.
PAGE 5
Rotational speed controller KHU8-DW-1.D Operating principle + Operating mode MODE + + MODE ENTER ENTER ENTER X=0: frequency measurement 0.001 Hz...5000 Hz X=1: rotational speed measurement 0.01 rpm...