BASIC INFO
Pepperl+Fuchs KCD2-STC-Ex1 Transmitter Power Supply Isolated Barrier
Features
• 1-channel isolated barrier
• 24 V DC supply (Power Rail)
• Input for 2-wire SMART transmitters and current sources
• Output for 4 mA ... 20 mA or 1 V ... 5 V
• Sink or source mode
• Housing width 12.5 mm
• Up to SIL 2 acc. to IEC 61508
Function
This isolated barrier is used for intrinsic safety applications.
The device supplies 2-wire SMART transmitters in a
hazardous area, and can also be used with 2-wire SMART
current sources.
It transfers the analog input signal to the safe area as an
isolated current value.
Digital signals may be superimposed on the input signal in the
hazardous or safe area and are transferred bi-directionally.
Selectable output of current source, sink mode, or voltage
output is available via DIP switches.
If the HART communication resistance in the loop is too low,
the internal resistance of 250 Ω between terminals 6 and 8
can be used.
Test sockets for the connection of HART communicators are
integrated into the terminals of the device.
Application
The device supports the following SMART protocols:
• HART
• BRAIN
General specifications
Signal type Analog input
Functional safety related parameters
Safety Integrity Level (SIL) SIL 2
Supply
Connection Power Rail or terminals 9+, 10-
Rated voltage Ur 19 ... 30 V DC
Ripple ≤ 10 %
Rated current Ir ≤ 45 mA
Power dissipation ≤ 800 mW
Power consumption ≤ 1.1 W
Input
Connection side field side
Connection terminals 1+, 2-; 3+, 4-
Input signal 4 ... 20 mA limited to approx. 30 mA
Open circuit voltage/short-circuit current terminals 1+, 2-: 22 V / 30 mA
Voltage drop terminals 3+, 4- : approx. 5 V
Available voltage terminals 1+, 2-: ≥ 15 V at 20 mA
Output
Connection side control side
Connection terminals 5-, 6+
Load 0 ... 300 Ω (source mode)
Output signal 4 ... 20 mA or 1 ... 5 V (on 250 Ω, 0.1 % internal shunt)
4 ... 20 mA (sink mode), operating voltage 15.5 ... 26 V
Ripple 20 mV rms
Transfer characteristics
Deviation at 20 °C (68 °F)
≤ ± 0.1 % incl. non-linearity and hysteresis (source mode 4 ... 20 mA)
≤ ± 0.2 % incl. non-linearity and hysteresis (sink mode 4 ... 20 mA)
≤ ± 0.2 % incl. non-linearity and hysteresis (source mode 1 ... 5 V)
Influence of ambient temperature < 2 µA/K (0 ... 60 °C (32 ... 140 °F)); < 4 µA/K (-20 ... 0 °C (-4 ... 32 °F)) (source mode and sink mode 4 ... 20
mA)
< 0.5 mV/K (0 ... 60 °C (32 ... 140 °F)); < 1 mV/K (-20 ... 0 °C (-4 ... 32 °F)) (source mode 1 ... 5 V)
Frequency range field side into the control side: bandwidth with 0.5 Vpp signal 0 ... 3 kHz (-3 dB)
control side into the field side: bandwidth with 0.5 Vpp signal 0 ... 3 kHz (-3 dB)
Settling time ≤ 200 ms
Rise time/fall time ≤ 20 ms
Galvanic isolation
Input/Output reinforced insulation acc. to EN 50178, rated insulation voltage 300 Veff
Input/power supply reinforced insulation acc. to EN 50178, rated insulation voltage 300 Veff
Output/power supply reinforced insulation acc. to EN 50178, rated insulation voltage 300 Veff
Indicators/settings
Display elements LED
Control elements DIP-switch
Configuration via DIP switches
Labeling space for labeling at the front
Directive conformity
Electromagnetic compatibility
Directive 2014/30/EU EN 61326-1:2013 (industrial locations)
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. 100 g
Dimensions 12.5 x 114 x 124 mm (0.5 x 4.5 x 4.9 inch) , housing type A2
Mounting on 35 mm DIN mounting rail acc. to EN 60715:2001
Data for application in connection
with hazardous areas
EU-Type Examination Certificate CESI 06 ATEX 021
Marking ¬ II (1)G [Ex ia Ga] IIC , ¬ II (1)D [Ex ia Da] IIIC , ¬ I (M1) [Ex ia Ma] I
Input [Ex ia Ga] IIC, [Ex ia Da] IIIC, [Ex ia Ma]
KCD2-STC-Ex1
KCD2-STC-Ex1.ES
KFD2-CRG2-Ex1.D
KFD2-HLC-Ex1.D
KFD2-HLC-Ex1.D.2W
KFD2-STC4-Ex1
KFD2-STC4-Ex1.2O
KFD2-STC4-Ex1.2O.H
KFD2-STC4-Ex1.H
KFD2-STC4-Ex2
KFU8-CRG2-Ex1.D
KCD2-STC-Ex1.2O
KCD2-STC-Ex1.2O.ES
KCD2-STC-Ex1.ES.SP
KCD2-STC-Ex1.SP
KFD2-STC3-Ex1
KFD2-STC4-Ex1-Y1
KFD2-STC4-Ex1.2O-Y1
KFD2-STC4-Ex1.ES
KFD2-STC4-Ex2-Y1
KFD2-STC5-Ex1
KFD2-STC5-Ex1.2O
KFD2-STC5-Ex1.2O.H
KFD2-STC5-Ex1.H
KFD2-STC5-Ex2
KFD2-STC5-Ex2
KFD2-STC5-Ex2
KFD2-STV4-Ex1.2O-1
KFD2-STV4-Ex2-1
KFD2-STV4-Ex2-2
KFD2-STV5-Ex1-1
KCD2-STC-Ex1.2O.DE
KFD2-HLC-Ex1.D.4S
KFD2-STV4-Ex1.2O-2
KCD2-STC-Ex1.HC
KCD2-STC-Ex1.HC.SP
KFD2-STC4-Ex1
KFD2-STC4-Ex1-Y1
KFD2-STC4-Ex1.2O
KFD2-STC4-Ex1.2O-Y1
KFD2-STC4-Ex1.2O.H
KFD2-STC4-Ex1.H
KFD2-STV4-Ex1-1
KFD2-STV4-Ex1-2
KFD2-STV4-Ex1.2O-1
KFD2-STV4-Ex2-1
KFD2-STV4-Ex2-2
KFD2-STV4-Ex1.2O-2
KFD2-STC3-Ex1
KCD2-STC-Ex1-Y1
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Lily
HONGKONG XIEYUAN TECH CO., LIMITED
T: 86-027-85581877 F: 86-027-85309780
Mail:lily@whxyauto.com
Ad: 7-A16,Caishen Commercial Plaza,Hankou Railway Station,Wuhan, Hubei, China
Web: www.hkxytech.com
