Switch Amplifier, Timer Relay KFA6-DU-Ex1.D

Datasheet excerpt: Technical data of  KFA6-DU-Ex1.D

General specifications
Signal type		Digital Input
Supply
Connection		terminals 23, 24
Rated voltage		230 V AC ± 10 %
Rated current		15 mA
Power consumption		4 VA
Input
Connection side		field side
Connection		Input I: terminals 1+, 3- ; input II: terminals 13+, 14-
Input I		acc. to EN 60947-5-6 (NAMUR), see system description for electrical data
	Open circuit voltage/short-circuit current	8.2 V / 10 mA
	Switching point/switching hysteresis	1.2 ... 2.1 mA / approx. 0.2 mA
	Pulse duration	min. 75 µs / 1 ms see instruction manuals; the maximum input frequency has to be observed.
	Input frequency	0 ... 80 Hz , pulse divider 0 ... 1 kHz
	Line fault detection	breakage I ≤ 0.15 mA; short-circuit I > 6.5 mA
Input II		reset
	Active/Passive	I > 3 mA / I < 1.5 mA
	Open circuit voltage/short-circuit current	12 V / 3.5 mA
	Pulse duration	min. 10 ms
Output
Connection side		control side
Connection		output I: terminals 10, 11, 12 ; output II: terminals 19+, 20-
Output I		signal , Relay output
	Contact loading	253 V AC/ 2 A / cos φ ≥ 0.7 ; 40 V DC/ 2 A
	Mechanical life	5 x 107 switching cycles
	Energized/De-energized delay	approx. 20 ms / approx. 20 ms
Output II		signal , electronic unit, isolated
	Contact loading	40 V / 50 mA
	Energized/De-energized delay	after rising input flank 3 ms ; after falling input flank 2 ms
	Signal level	1-signal: (L+) -2.5 V (50 mA, short-circuit/overload proof) 0-signal: blocked output (off-state current ≤ 10 µA)
Transfer characteristics
Input I
	Resolution	< 0.1 % of the set value, min. 10 ms
	Accuracy	2 ms
	Influence of ambient temperature	0.003 %/K (50 ppm)
Galvanic isolation
Input I/other circuits		reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff
Output I/power supply and reset		reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff
Output I, II against eachother		reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff
Output II/power supply		reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff
Output II/reset		basic insulation according to IEC/EN 61010-1, rated insulation voltage 50 Veff
Reset/power supply		reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff
Indicators/settings
Display elements		LEDs , display
Control elements		Control panel
Configuration		via operating buttons
Labeling		space for labeling at the front
Directive conformity
Electromagnetic compatibility
	Directive 2014/30/EU	EN 61326-1:2013 (industrial locations)
Low voltage
	Directive 2014/35/EU	EN 61010-1:2010
Conformity
Electromagnetic compatibility		NE 21:2006
Degree of protection		IEC 60529:2001
Ambient conditions
Ambient temperature		-20 ... 60 °C (-4 ... 140 °F)
Mechanical specifications
Degree of protection		IP20
Connection		screw terminals
Mass		approx. 300 g
Dimensions		40 x 119 x 115 mm (1.6 x 4.7 x 4.5 inch) , housing type C3
Mounting		on 35 mm DIN mounting rail acc. to EN 60715:2001
Data for application in connection with hazardous areas
EU-Type Examination Certificate		TÜV 99 ATEX 1408
	Marking	II (1)G [Ex ia Ga] IIC II (1)D [Ex ia Da] IIIC I (M1) [Ex ia Ma] I
Supply
	Maximum safe voltage	253 V AC (Attention! The rated voltage can be lower.)
Input I		terminals 1+, 3-: Ex ia
	Voltage Uo	10.1 V
	Current Io	13.5 mA
	Power Po	34 mW (linear characteristic)
Input II		terminals 13+, 14- non-intrinsically safe
	Maximum safe voltage Um	40 V (Attention! The rated voltage can be lower.)
Output I		terminals 10, 11, 12 non-intrinsically safe
	Contact loading	253 V AC/2 A/cos φ > 0.7; 40 V DC/2 A resistive load (TÜV 99 ATEX 1408) 50 V AC/2 A/cos φ > 0.7; 40 V DC/2 A resistive load (TÜV 02 ATEX 1885 X)
	Maximum safe voltage	253 V (Attention! The rated voltage can be lower.)
Output II		terminals 19+, 20- non-intrinsically safe
	Maximum safe voltage	40 V (Attention! The rated voltage can be lower.)
Certificate		TÜV 02 ATEX 1885 X
	Marking	II 3G Ex nA nC IIC T4 Gc
Output I
	Contact loading	50 V AC/2 A/cos φ > 0.7; 40 V DC/1 A resistive load
Galvanic isolation
	Input I/other circuits	safe electrical isolation acc. to IEC/EN 60079-11, voltage peak value 375 V
Directive conformity
	Directive 2014/34/EU	EN 60079-0:2012+A11:2013 , EN 60079-11:2012 , EN 60079-15:2010
International approvals
FM approval
	Control drawing	116-0305
UL approval		E223772
IECEx approval		IECEx TUN 03.0000
	Approved for	[Ex ia Ga] IIC, [Ex ia Da] IIIC, [Ex ia Ma] I
General information
Supplementary information		Observe the certificates, declarations of conformity, instruction manuals, and manuals where applicable. For information see www.pepperl-fuchs.com.

Documents: KFA6-DU-Ex1.D

CAD+CAE: KFA6-DU-Ex1.D

Approvals+Certificates: KFA6-DU-Ex1.D

Function: KFA6-DU-Ex1.D

This isolated barrier is used for intrinsic safety applications. It is a highly configurable timer that accepts a digital signal (NAMUR sensor/mechanical contact) from a hazardous area and is commonly used in applications requiring on-delay, off-delay, one-shot, or pulse lengthening.

The output relay switch duration is easily adjusted, and a pulse divider function allows step-down ratios from 1:1 to 9999:1.

A reset can be activated via dry contact switch and used to terminate a particular time function. The unit is easily programmed by the use of a keypad located on the front of the unit. Line fault detection of the field circuit is indicated by a red LED.

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