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Release date: 2016-11-25 08:28 Date of issue: 2016-12-05 209869_eng.xml
Evaluation unit KFU8-DW-1.D-Y209869
Technical data
General specifications
Pre-selection single
Functional safety related parameters
MTTF
d
100 a
Supply
Rated voltage U
r
200 ... 230 V AC ; 100 … 130 V AC; 50 Hz
20 VDC ... 30 VDC
Fusing external fusing 4 A
Power consumption AC: < 5 VA
DC: < 5 W
Indicators/operating means
Ty p e 7-segment LED display, red
Number of digits 4
Display value digit height 7 mm, in Hz or 1/min
LED yellow switching state
Accuracy ± 1 digit
Input
Control input NAMUR: 1,2 mA ≤ x ≤ 2,1 mA (terminal 8, 9), max. 8.2 V and 6.5
mA, impedance 1.2 kOhm
Trigger input 12 V (terminal 2), max. 30 V, impedance 2.8 kOhm
Pulse duration 20 µs
Input 1
Switching point 1.2 ... 2.1 mA Switching hysteresis approx. 0.2 mA
Input frequency 0.002 ... 10000 Hz, pulse length/duration: ≥ 20µs
Impedance 1.2 kΩ
Input 3
Start-up override Triggering by external signal 16 ... 30 V or Place jumper between
terminals 2/3 or by switching on supply voltage (terminal 2 and
terminal 3 permanently bridged)
Jumpering time 1 ... 9999 s (External trigger signal)
Output
Relay 1 changeover contact
Sensor supply 24 V DC ± 10 %, 30 mA , short-circuit protected
Contact loading 250 V AC/2 A/ cos φ ≥ 0.7
40 V DC/2 A
Delay times
Time delay before availability ≤ 400 ms
Start-up override 1 ... 9999 s
Relay ≤ 20 ms
Transfer characteristics
Measuring error 0 ... 10 kHz: ≤ ±0.1%
Display: ±1 digit
Standard conformity
Electromagnetic compatibility acc. to EN 50081-2 / EN 50082-2
Ambient conditions
Ambient temperature -25 ... 40 °C (-13 ... 104 °F)
Storage temperature -40 ... 85 °C (-40 ... 185 °F)
Relative humidity max. 80 %, not condensing
Altitude 0 ... 2000 m
Operating conditions The device has only to be used in an indoor area.
Mechanical specifications
Connection assembly Caution: Please be aware that the device may only be connec-
ted to a switchable power supply. The switch or circuit breaker
must be easy to reach and identified as the separator for the
device.
Degree of protection IP20
Connection coded, removable terminals , max. core cross-section 0.34 ...
2.5 mm
2
Construction type modular terminal housing in Makrolon, System KF
For use in the switch cabinet/switch cabinet module
Mounting snap-on to 35 mm standard rail or screw fixing
Life span 30 x 10
6
switching cycles
Model Number
KFU8-DW-1.D-Y209869
Evaluation unit
Features
• Rotational speed monitoring up to
10 kHz
• 1 pre-select value with relay output
and LED indicator
• Multi-range power pack
• NAMUR sensors connectable
• Adjustable start-up override
• Menu driven operation via 4 front keys
• Period measurement
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General