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
  • Without line fault detection
  • Up to SIL 2 acc. to IEC 61508

Please note: All product-related documents, such as certificates, declarations of conformity, etc., which were issued prior to the conversion under the name Pepperl+Fuchs GmbH, also apply to Pepperl+Fuchs AG.

Download the complete datasheet as a PDF:


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

General specifications
Signal typeDigital Input
Programmingvia DIP switch and programmable
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
Galvanic isolation
Input/Outputreinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff
Input/power supplyreinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff
Output/power supplyreinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff
Output/Outputreinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff
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
InputEN 60947-5-6:2000
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
General information
Supplementary informationObserve the certificates, declarations of conformity, instruction manuals, and manuals where applicable. For information see www.pepperl-fuchs.com.
Accessories
Optional accessories- power feed module KFD2-EB2(.R4A.B)(.SP)
- universal power rail UPR-03(-M)(-S)
- profile rail K-DUCT-GY(-UPR-03)

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

Interface for Power Rail, Supply current ≤ 4 A, Replaceable fuse, Relay contact output, reversible, LED status indicationpa

Interface for Power Rail, Used for redundant configuration, Supply current ≤ 4 A, Replaceable fuse, Relay contact output, reversible, LED status indicationpa

35 mm DIN mounting rail with 3-conductor insert, Provides DC supply voltage to all equipped K-System modules, Standard length 2 m (6 foot), simple to customize to application space, Eliminates daisy-chainspa

35 mm DIN mounting rail with 3-conductor insert, Provides DC supply voltage to all equipped K-System modules, Standard length 0.8 m (2.6 ft), simple to customize to application space, Eliminates daisy-chainspa
Interface for Power Rail, Used for redundant configuration, Supply current ≤ 4 A, Replaceable fuse, Relay contact output, reversible, LED status indication, Connection via spring terminals with push-in connection technologypa
Interface for Power Rail, Supply current ≤ 4 A, Replaceable fuse, Relay contact output, reversible, LED status indication, Connection via spring terminals with push-in connection technologypa
35 mm DIN mounting rail with 3-conductor insert, Provides DC supply voltage to all equipped K-System modules, Standard length 1.6 m (5 foot), simple to customize to application space, Eliminates daisy-chainspa
Cable trunking is integrated in the mounting profile, Safe spacious separation of field and control signals, No additional cable guides necessary, Standard length 1.8 m (5.8 ft), simple to customize to application space, With mounting aidspa
Cable trunking with integrated Power Rail UPR-03, Safe spacious separation of field and control signals, No additional cable guides necessary, Provides DC supply voltage to all equipped K-System modules, Standard length 1.8 m (5.8 ft), simple to customize to application space, With end caps UPR-E, cover and mounting aidspa

Function: KFD2-SR2-2.W.SM

This signal conditioner provides the galvanic isolation between field circuits and control circuits.

This device is a standstill monitor that accepts input frequency pulses and triggers an output when the frequency drops below a preselected limit value.

Two start-up override values are available. This unit can also be used to determine rotation direction.

During an error condition or a power loss, the relay reverts to its de-energized state and the LEDs indicate the fault according to NAMUR NE 44. A line fault is not indicated.

The device has LED status indicators for direction of rotation detection, limit detection, supply, and hardware faults.

The device is easily configured by the use of DIP switches.

For additional information, refer to www.pepperl-fuchs.com.