AI-KCD2-STC-EX1

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Connection

Assembly

?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 SIL2 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? 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

Features

2

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General specifications Signal type Analog input

Supply Connection Power Rail or terminals 9+, 10-Rated voltage 19 ... 30 V DC Ripple ≤ 10 %Rated current ≤ 45 mA Power loss ≤ 800 mW Power consumption ≤ 1.1 W Input 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 terminals 5-, 6+

Load 0 ... 300 ? (source mode)

Output signal

4 ... 20 mA or 1 ...

5 V (on 250 ?, 0.1 % internal shunt) 4 ... 20 mA (sink mode), operating voltage 15.5 ... 2

6 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 V pp signal 0 ... 3 kHz (-3 dB) control side into the field side: bandwidth with 0.5 V pp signal 0 ... 3 kHz (-3 dB)Settling time ≤ 200 ms

Rise time/fall time ≤ 20 ms

Electrical isolation Input/Output reinforced insulation acc. to EN 50178, rated insulation voltage 300 V eff Input/power supply reinforced insulation acc. to EN 50178, rated insulation voltage 300 V eff Output/power supply reinforced insulation acc. to EN 50178, rated insulation voltage 300 V eff

Directive conformity Electromagnetic compatibility

Directive 2004/108/EC EN 61326-1:2006Conformity

Electromagnetic compatibility NE 21:2006Protection degree IEC 60529:2001

Ambient conditions Ambient temperature -20 ... 60 °C (-4 ... 140 °F)Mechanical specifications Protection degree IP20

Mass

approx. 100 g

Dimensions 12.5 x 114 x 124 mm (0.5 x 4.5 x 4.9 in) , housing type A2Mounting

on 35 mm DIN mounting rail acc. to EN 60715:2001

Data for application in connection with Ex-areas

EC-Type Examination Certificate CESI 06 ATEX 021 , for additional certificates see https://www.wendangku.net/doc/8b9652190.html, Group, category, type of protection ? 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] I Supply

Maximum safe voltage U m 250 V AC (Attention! U m is no rated voltage.)Equipment terminals 1+, 2-

Voltage U o 25.2 V Current I o 100 mA Power

P o

630 mW Equipment terminals 3+, 4-

Voltage U

< 30 V

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Power

P o

25 mW

Statement of conformity

PF 06 CERT 0973 X Group, category, type of protection, temperature class ? II 3G Ex nA IIC T4 Gc Electrical isolation

Input/Output safe electrical isolation acc. to IEC/EN 60079-11, voltage peak value 375 V Input/power supply safe electrical isolation acc. to IEC/EN 60079-11, voltage peak value 375 V Directive conformity

Directive 94/9/EC EN 60079-0:2009, EN 60079-11:2007 , EN 60079-15:2005 , EN 60079-26:2007 , EN 61241-11:2006 , EN 50303:2000International approvals FM approval

Control drawing 16-533FM-12 (cFMus)UL approval

Control drawing 16-533FM-12 (cULus)IECEx approval IECEx CES 06.0001

Approved for [Ex ia Ga] IIC , [Ex ia Da] IIIC , [Ex ia Ma] I

General information Supplementary information

EC-Type Examination Certificate, Statement of Conformity, Declaration of Conformity, Attestation of Conformity and instructions have to be observed where applicable. For information see https://www.wendangku.net/doc/8b9652190.html,.

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Factory settings: output as current source 4 mA ... 20 mA

Power feed module KFD2-EB2

The power feed module is used to supply the devices with 24 V DC via the Power Rail. The fuse-protected power feed module can supply up to 150individual devices depending on the power consumption of the devices. A galvanically isolated mechanical contact uses the Power Rail to transmit collective error messages.Power Rail UPR-03

The Power Rail UPR-03 is a complete unit consisting of the electrical inset and an aluminium profile rail 35mm x 15mm. To make electrical contact, the devices are simply engaged.Profile Rail K-DUCT with Power Rail

The profile rail K-DUCT is an aluminum profile rail with Power Rail insert and two integral cable ducts for system and field cables. Due to this assembly no additional cable guides are necessary.

Power Rail and Profile Rail must not be fed via the device terminals of the individual devices!

Configuration

Accessories