VEGA KFD2-BR-Ex1.3PA.93 User Manual

Segment coupler

Segment coupler for intrinsically safe
PROFIBUS PA segment

• PROFIBUS DP, EN 50170/2, RS
485: 93.75 kbit/s

• PROFIBUS PA [EEx ia] IIC;
PROFIBUS EN 50170/2; IEC 61158­2: 31.25 kbit/s

• Master independent

• Up to 10 Ex devices can be
connected to the PA segment

• Supply via PA bus

• 24 V DC rated operational voltage

• Removable terminals and Power
Rail

• EMC acc. to NAMUR NE 21

red yellow

PROFIBUS PA

[EEx ia] IIC

1 16 2 17 3 18

+

-

Screen/PA

Bus termination

IEC 61158-2

Protocol conversion

RS 485

Bus termination

S1

KFD2-BR-Ex1.3PA.93

Segment coupler for PROFIBUS PA

Safe area Hazardous area

green

Function

The segment coupler couples an intrin­sically safe PROFIBUS PA segment to
a PROFIBUS segment using RS 485
transfer technology in accordance with
EN 50170. The Profibus is standard­ised in EN 50170/2.
The communication behaves transpar­ently. The protocol is transferred un­changed, therefore the segment cou­pler can operate with each PROFIBUS
protocol and is not parameterised.
The baudrate of the intrinsically safe
PROFIBUS PA segment is 31.25
kbits/s in accordance with IEC 61158-2
The PROFIBUS segment with RS 485
transfer technology has a baudrate of

93.75 kbit/s. This baudrate is particular-

ly suitable for mixed operation with DP
and PROFIBUS PA stations.
Devices on the PROFIBUS PA are sup­plied from the segment coupler via the
bus.

Please note!

On the segment coupler no supply volt­age or other external voltage must be
applied to the PROFIBUS terminals.
For additional information see the PNO
Manual for PROFIBUS PA

Output characteristic

VP

CNTR-P

DGND

PROFIBUS DP

Composition

Screen/FE

RxD/TxD-P

404257 56 55 58 59 6041

RxD/TxD-N

+

FE

-

Power supply

Power rail

U

o

*) FISCO:

1

P

o

I =

U

o

I

I

o

Subject to reasonable modifications due to technical advances. Copyright Pepperl+Fuchs, Printed in Germany

Pepperl+Fuchs Group • Tel.: Germany [phone] • USA [phone] • Singapore [phone] • Internet http://www.pepperl-fuchs.com

098314_ENG.xml 2003-03-13

Technical Data

Supply

Connection Power Rail or terminals 59+, 60-, 58 FE
Rated voltage 20 ... 35 V DC
Ripple ≤ 10 %
Rated current 190 mA ... 430 mA

Fieldbus connection

Profibus PA

Connection terminals 3, 18+; 2, 17­Rated voltage 12,6 ... 13,4 V
Rated current ≤ 100 mA
Terminating impedance 100 Ω , integrated

Profibus DP PROFIBUS with RS 485 transmission technique

Connection terminals 40 RxD/TxD-P, 41 RxD/TxD-N, 42 screen/FE, 55 DGND, 56 CNTR-P, 57 VP
Baudrate 93,75 kBit/s
Terminating impedance with rotary switch (S1) switchable: 1 = on; 0 = off

Electrical isolation

Profibus PA/Profibus RS 485-Segment safe electrical isolation acc. to EN 50020, voltage peak value 375 V
PROFIBUS DP/Supply function insulation acc. to DIN EN 50178, rated insulation voltage 50 V

PROFIBUS PA/Supply safe electrical isolation acc. to EN 50020, voltage peak value 375 V

Standard conformity

Electrical isolation EN 50178
Electromagnetic compatibility NAMUR NE 21
Protection degree IEC/EN 60529
Fieldbus standard EN 50170/2
Climatic conditions DIN IEC 721

Directive conformity

Electromagnetic compatibility

Directive 89/336/EG EN 61326, EN 50081-2

Ambient conditions

Classification 3K3
Ambient temperature -20 ... 60 °C (253 ... 333 K)
Storage temperature -40 ... 85 °C (233 ... 358 K)
Relative humidity < 75 %
Degree of soiling max. 2, according to IEC 664

Mechanical specifications

Connection type terminals
Core cross-section

Housing 100 mm x 115 mm x 107 mm
Protection degree IP20
Mass 650 g
Mounting DIN rail mounting

Data for application in conjunction with
hazardous areas

EC-Type Examination Certificate PTB 99 ATEX 2142

Group, category, type of protection,
Temperature classification

Statement of conformity TÜV 00 ATEX 1531X

Group, category, type of protection,
Temperature classification

Supply

Safety maximum voltage U

Profibus PA

Voltage U
Current Io 207,2 mA
Power P
Safety maximum voltageUm 60 V

Directive conformity standards

Directive 94/9 EU EN 50014, EN 50020, EN 50021

15 V

o

1,93 W

o

m

up to 2.5 mm

¬ II (1) G D [EEx ia] IIC

¬ II 3 G EEx nA IIC T4

40 V DC

2

KFD2-BR-Ex1.3PA.93

eff

098314_ENG.xml 2003-03-13

Subject to reasonable modifications due to technical advances. Copyright Pepperl+Fuchs, Printed in Germany

Pepperl+Fuchs Group • Tel.: Germany [phone] • USA [phone] • Singapore [phone] • Internet http://www.pepperl-fuchs.com

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