Serviceline
Serviceline Industrial Sensors
Serviceline Explosion Protection

Standstill and Rotational Direction Monitor KFD2-SR2-2.W.SM

KFD2-SR2-2.W.SM
  • 2-channel signal conditioner
  • 24 V DC supply
  • PNP/push-pull, dry contacts or NAMUR inputs
  • Selectable frequency trip values
  • 2 relay contact outputs
  • Start-up override
  • Selectable mode of operation
  • Line fault detection (LFD)
  • Up to SIL 2 acc. to IEC 61508

Download the complete datasheet as a PDF:


Datasheet excerpt: Technical data of KFD2-SR2-2.W.SM

General specifications
Signal typeDigital Input
Functional safety related parameters
Safety Integrity Level (SIL)SIL 2
Supply
Connectionterminals 14+, 15-
Rated voltage20 ... 30 V DC
Power consumptionmax. 1.5 W
Input
Connection sidefield side
ConnectionInput I: terminals 1+, 2+, 3- ;
Input II: terminals 4+, 5+, 6-
Rated valuesacc. to EN 60947-5-6 (NAMUR)
Open circuit voltage/short-circuit currentapprox. 8 V DC / approx. 8 mA
Switching point/switching hysteresis1.2 ... 2.1 mA / approx. 0.2 mA
Line fault detectionnot available
Control inputsensor power supply approx. 8.2 V, impedance 1.2 kΩ
Pulse duration> 200 µs for standstill monitoring,
> 250 µs for rotation direction detecion
Output
Connection sidecontrol side
Connectionoutput I: terminals 7, 8, 9 ;
output II: terminals 10, 11, 12
Contact loading253 V AC/2 A/cos φ > 0.7; 126.5 V AC/4 A/cos φ > 0.7; 40 V DC/2 A resistive load
Minimum switch current2 mA / 24 V DC
Energized/De-energized delayapprox. 20 ms / approx. 20 ms
Mechanical life107 switching cycles
Trip valuefor standstill monitoring:
0.1 Hz; 0.5 Hz; 2 Hz; 10 Hz
adjustable via DIP switch (S1 and S2)
Transfer characteristics
Accuracy5 % (S3 = I), 30 % (S3 = II)
Start-up override5 seconds or 20 seconds, programmable
Frequency range≤ 2 kHz
Rotation direction detection90° phase difference between pulse input signal 1 and 2, overlapping ≥ 125 µs
Indicators/settings
Display elementsLEDs
Control elementsDIP-switch
Configurationvia DIP switches
Labelingspace for labeling at the front
Directive conformity
Electromagnetic compatibility
Directive 2014/30/EUEN 61326-1:2013 (industrial locations)
Low voltage
Directive 2014/35/EUEN 61010-1:2010
Conformity
Electromagnetic compatibilityNE 21:2006
Degree of protectionIEC 60529:2001
Ambient conditions
Ambient temperature-20 ... 60 °C (-4 ... 140 °F)
Mechanical specifications
Degree of protectionIP20
Connectionscrew terminals
Massapprox. 150 g
Dimensions20 x 119 x 115 mm (0.8 x 4.7 x 4.5 inch) , housing type B2
Mountingon 35 mm DIN mounting rail acc. to EN 60715:2001

Approvals+Certificates: KFD2-SR2-2.W.SM

Statements of complianceCertificate No.File TypeFile Size
EU-Declaration of conformity / EU-KonformitätserklärungDOC-3165APDF161 KB
Certificates
exida Functional Safety AssessmentP+F 04/03-14 R017PDF148 KB

Associated Products: KFD2-SR2-2.W.SM

Accessories
25-point wiring link for control cabinet modules with screw terminalsfa