VEGA KFD2-BR-1.PA.93 User Manual

Segment coupler

PROFIBUS PA

214315

+

-

KFD2-BR-1.PA.93

Segment coupler for PROFIBUS PA

Segment coupler for a non-intrinsically
safe PROFIBUS PA segment

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

• PROFIBUS PA; PROFIBUS EN
50170/2; IEC 61158-2: 31.25 kbits

• Master independent

• Up to 32 PROFIBUS PA participants
can be connected to a segment

• Supply via PA bus

• 24 V DC rated operational voltage

• Removable terminals and Power
Rail

• EMC acc. to NAMUR NE 21

Function

The segment coupler connects a
PROFIBUS PA segment to a PROFI­BUS segment based on RS 485 trans­fer technology in accordance with
EN 50170. The Profibus is EN 50170/2
compliant.
The communication process is transpa­rent. The protocol is transferred without
any changes. Because of this, the seg­ment coupler works with any PROFI­BUS protocol and no parameters are
set for it.
The baudrate of the PROFIBUS PA
segment is 31.25 kbit/s in accordance
with IEC 61158-2. The PROFIBUS seg­ment based on the RS 485 transfer sy­stem has a baudrate of 93.75 kbit/s.
This baudrate is especially suitable for
mixed operation with DP and
PROFIBUS PA stations.
Power is supplied to devices on the
PROFIBUS PA by the segment coupler
through the bus.

CNTR-P

RS 485

DGND

red yellow

VP

PROFIBUS DP

Composition

Bus termination

IEC 61158-2

Protocol conversion

Bus termination

S1

RxD/TxD-P

Screen/FE

283042 41 40 46 47 4829

RxD/TxD-N

green

FE

Power supply

+

-

Power rail

Please note:

No power supply voltage or other exter­nal voltage can be applied to the seg­ment coupler on the PROFIBUS termi­nals.

For additional information, please refer
to the PNO manual for PROFIBUS PA.

•

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

1

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

044765_ENG.xml 2003-02-27

Technical Data

Supply

Connection Power Rail or terminals 47 (L+), 48 (L-)
Rated voltage 20 ... 35 V DC
Ripple ≤ 10 %
Rated current 790 mA ... 400 mA

Fieldbus connection

Profibus PA

Connection terminals 3, 15+; 2, 14­Rated voltage 24 ... 26 V
Rated current ≤ 400 mA
Terminating impedance 100 Ω , integrated

Profibus DP PROFIBUS with RS 485 transmission technique

Connection terminals 28 RxD/TxD-P, 29 RxD/TxD-N, 30 screen/FE, 40 DGND, 41 CNTR-P, 42 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 50 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 50 V
All circuits/FE function insulation acc. to DIN EN 50178, rated insulation voltage 50 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 80 mm x 115 mm x 107 mm
Protection degree IP20
Mass 600 g
Mounting DIN rail mounting

Data for application in conjunction with
hazardous areas

Statement of conformity pending

Accessories

Power Rail UPR02
Power feed module KFD2-EB2
Terminal resistor KMD0-FT-Ex

Fx-FT-Ex1.I.IEC
Fx-FT-Ex1.D.IEC

up to 2.5 mm

2

KFD2-BR-1.PA.93

eff

eff

044765_ENG.xml 2003-02-27

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

2