Bürkert 8643 User manual

Operating Instructions
Bedienungsanleitung
Instructions de Service
Type 8643
Power I/O-Box
with FOUNDATION™ Fieldbus Connection
mit FOUNDATION™ Fieldbus-Anschaltung
avec connexion FOUNDATION™ Fieldbus

We reserve the right to make technical changes without notice.
Technische Änderungen vorbehalten.
Sous réserve de modifications techniques.
© Bürkert Werke GmbH & Co. KG, 20 - 2017
Operating Instructions 1706/_(8(1_008 / Original DE

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POWER I/O-BOX Typ 8643
1 THE MANUAL ................................................................................................................................5
1.1 Symbols ........................................................................................................................ 5
1.2 Trademarks ................................................................................................................... 6
2 INTENDED USE .............................................................................................................................6
2.1 Limitations ..................................................................................................................... 6
3 SAFETY PRECAUTIONS ...........................................................................................................7
4 GENERAL INFORMATION .........................................................................................................9
4.1 Contact Addresses .................................................................................................... 9
4.2 Warranty ...................................................................................................................... 9
4.3 Information in the Internet ......................................................................................... 9
4.4 Conformity .................................................................................................................... 9
4.5 Standards ..................................................................................................................... 9
5 SYSTEM DESCRIPTION ......................................................................................................... 10
5.1 General Description .................................................................................................10
5.2 Technical data ............................................................................................................15
5.3 Dimensions .................................................................................................................17
6 INSTALLATION ............................................................................................................................ 18
6.1 Safety Precautions ...................................................................................................18
6.2 Installation Instructions ............................................................................................20
6.3 Cable glands ..............................................................................................................20
6.4 Electrical Connections ............................................................................................22
7 NETWORK CONFIGURATION .............................................................................................. 26
7.1 Memory Allocation for User Data Traffic ..............................................................26
7.2 System Parameters ..................................................................................................26

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8 COMMISSIONING ..................................................................................................................... 31
9 SERVICE ......................................................................................................................................... 32
10 REPAIR ............................................................................................................................................ 32
11 PACKAGING, TRANSPORT ................................................................................................... 32
12 STORAGE ....................................................................................................................................... 33
12.1 Storage Conditions .............................................................................................33
12.2 Decommissioning ................................................................................................33
12.3 Restarting ..............................................................................................................33
13 DISPOSAL ..................................................................................................................................... 33

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1 THE MANUAL
This operating manual describes the entire life cycle of the device. Store this
manual in such a way that is easily accessible to every user and is available to
every new owner of the device.
WARNING!
The operating instructions have to be read and understood.
Read the operating manual carefully. Observe the chapters Intended Use
and General Safety Precautions!
1.1 Symbols
1.1.1 Safety Precautions
The following symbols are used throughout this operating manual:
DANGER!
High risk
Signifies an immediate impending danger. If it is not avoided, death or
serious injury will result.
WARNING!
Medium risk
Signifies a potentially dangerous situation. If it is not avoided, death or
serious injury may result.
CAUTION!
Low risk
Signifies a potentially dangerous situation. If it is not avoided, minor injury
or equipment damage may result.
1.1.2 Information, Recommendations
NOTE!
Describes important additional information, tips and recommendations that
are important for your safety and the proper functioning of the device.
NOTE!
Refers to information in this operating manual or in other documents.
1.1.3 Work steps
→indicates a work step which you must carry out.

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1.2 Trademarks
FOUNDATION Fieldbus registered trademark
of Fieldbus Foundation
NAMUR Consortium Automation technology for
the process industry
2 INTENDED USE
Observe the instructions in this operating manual, as well as the conditions
of use and permissible data specified in the EC-Type Examination Certificate
(see Annex).
The proper and safe functioning of the Power I/O Box Type 8643 with
FOUNDATION Fieldbus activation is dependent on proper transport, stor-
age and installation, and on careful operation and maintenance.
2.1 Limitations
Pay attention to any limitations if the system is to be exported.
EX APPROVAL
Unauthorized modifications to the Power I/O Box Type 8643 with
FOUNDATION Fieldbus activation or to the components invalidates the Ex
approval.

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3 SAFETY PRECAUTIONS
DANGER!
Hazard due to electrical voltage in the system!
Working on the unit involves acute risk of injury.
• Before starting work, be sure to switch off the supply voltage and
secure it to prevent restarting!
• Observe all applicable accident prevention and safety regulations for
electrical equipment!
Danger from using the Power I/O Box Type 8643 in unauthorized
ambient temperature ranges!
Hazardous situations may arise due to use in unauthorized ambient tem-
perature ranges, especially in potentially explosive environments.
• Remain within the appropriate ambient temperature range, for each
type (e. g. 8643-4-AL-KS-F-I/O), according to the table in the EC-Type
Examination Certificate.
Hazard due to unauthorized combination of types of ignition protec-
tion!
Hazardous situations may arise due to unauthorized combination of differ-
ent types of ignition protection!
• Once the bus supply has been used in an increased ignition protection
class (e), the bus supply may no longer be done at the intrinsical stand-
ard ignition protection class (i).
WARNING!
Unintentional operations or unauthorized tampering can lead to gen-
erally dangerous situations including personal injury.
• Take suitable measures to prevent unintentional operation or unauthor-
ized tampering!
Dangerous situations may occur during installation and maintenance
work.
• This work may only be carried out by authorized service personnel using
appropriate tools!
• After an interruption of the electricity or compressed air supply, ensure
that the process is re-started in a dened or controlled manner!

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CAUTION!
Electrostatically sensitive components / modules
The system contains electronic components that react sensitively to elec-
trostatic discharge (ESD).
Contact with electrostatically charged persons or objects can endanger
these components. In the worst case they may be immediately destroyed or
fail after commissioning.
• Observe the requirements of EN 100 015 - 1 in order to avoid or mini-
mize the risk of damage caused by sudden electrostatic discharges.
• Pay attention not to touch electronic components when the supply volt-
age is switched on.
NOTE!
• The Power I/O Box Type 8643 has been developed in compliance with
recognized technical safety regulations and represents state-of-the-art
technology. However, dangers may nevertheless arise.
• Operate the Power I/O Box Type 8643 only when it is in proper working
order and only in accordance with the operating manual.
• Do not subject the housing of the Power I/O Box Type 8643 to mecha-
nical loads (e. g. by using it as a support for objects or as a step).
• Failure to observe this operating manual and its operating instructions
as well as unauthorized tampering with the device release us from any
liability and also invalidate the warranty covering the devices and acces-
sories!
• The Ex approval is only valid if the Power I/O Box Type 8643 is used
in the manner described. Unauthorized modifications invalidate the Ex
approval!
NOTE!
Information about the FOUNDATION Fieldbus
Detailed information about the commissioning of a FOUNDATION Field-
bus (FF) line is found in the FOUNDATION Fieldbus Application Guide,
in the section Wiring and Installation of the Fieldbus Foundation.
Internet: www.fieldbus.org

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4 GENERAL INFORMATION
4.1 Contact Addresses
Germany
Bürkert Fluid Control System
Sales Center
Chr.-Bürkert-Str. 13-17
D-74653 Ingelfingen
Tel. : [phone]
Fax: [phone]
E-mail: [email protected]
International
Contact addresses can be found on the final pages of the printed operating
instructions.
You can also find information on the Internet under: www.buerkert.com
4.2 Warranty
The warranty is only valid if the device is used as intended in accordance
with the specified application conditions.
4.3 Information in the Internet
The operating instructions and data sheet for the Power I/O Box Type 8643
with FOUNDATION Fieldbus activation are found on the Internet under:
www.burkert.com Documentation Type XXXX
4.4 Conformity
Type 8643 conforms with the EC Directives according to the
EC Declaration of Conformity.
4.5 Standards
The applied standards, which verify conformity with the EC Directives,
can be found on the EC-Type Examination Certificate and / or the
EC Declaration of Conformity.

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5 SYSTEM DESCRIPTION
5.1 General Description
The Power I/O Box Type 8643 with FOUNDATION Fieldbus activation
(hereafter Power I/O Box Type 8643) is used for the activation of binary
signals on the FOUNDATION Fieldbus.
It is suitable for use in potentially explosive atmospheres and has been ap-
proved according to ATEX for use in Zone 1 and 21.
This device is supplied in either an aluminum or polyester housing in protec-
tion class IP65 or as an electronic module in protection class IP20/IP30 for
installation in housings with Ex-e approval or control cabinets.
All cable fittings are found on the bottom.
The device is supplied via a separate power supply source for the Ex-i bus
due to the fact that the usable energy from the bus wiring is extremely lim-
ited.
5.1.1 Advantages and technical features
Advantages of the Power I/O Box
• Simple and safe installation.
• Secure galvanic isolation between power supply, bus connection, inputs
and outputs.
• Dependable IP protection.
• Freedom in the assignment of the individual signals thanks to the
FOUNDATION Fieldbus' DO and DI function blocks.
Power I/O Box technical features
• 4-lead device
• Housing: Polyester, powder-coated aluminum
• Protection class: IP65 (as electronic module, IP20 / IP30)
• Temperature range from –20 to +55 °C
(see table in the EC Type Examination Certificate)
• Interfaces: FOUNDATION Fieldbus H1
• Outputs: 4x Ex-i DO; Inputs: 8x Ex-i DI
• ATEX approval: II 2 (1) G Ex e mb [ia IIC Ga] IIC T4 Gb
II 2 (1) D Ex tb [ia IIIC Da] IIIC T65 °C Db IP65
• IECEx approval: Ex e mb [ia IIC Ga] IIC T4 Gb
Ex tb [ia IIIC Da] IIIC T65 °C Db IP65

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5.1.2 Field of Application
The Power I/O Box Type 8643 is designed for decentralized use in industrial
environments, especially the pharmaceutical, petrochemical and specialized
chemical industries.
It meets the specifications for the protection classes IP20/IP30 (as an elec-
tronic module) and IP65 (in aluminum or polyester housings).
DANGER!
Hazard due to electrical voltage!
The Power I/O Box Type 8643 is designed with ignition protection type
Ex-e (increased safety).
• Switch off the system's operating voltage before working on the Power
I/O Box Type 8643!
NOTE!
When using the Power I/O Box Type 8643 in a control cabinet, ensure that:
• the control cabinet is also approved for use in an explosive environment,
• the control cabinet is dimensioned sufficiently large to exhaust the waste
heat out of the cabinet in a suitable manner,
• the temperature inside the control cabinet does not exceed the permis-
sible operating temperature of the Power I/O Box Type 8643!

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5.1.3 Marking
Type label
Illustration 5-1: Location of the type label

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5.1.4 Cable connections on the housing
1
2
Legend
1 Cable fittings for intrinsically
safe electrical circuits
(8 fittings, blue)
2 Cable fittings for bus and
voltage supply
(4 fittings, black)
Illustration 5-2: Location of the cable connections on the aluminum housing
of the device
1
2
3
Legend
1 Cable fittings for intrinsically
safe electrical circuits
(8 fittings, blue)
2 Cable fittings for bus and
voltage supply
(4 fittings, black)
3Cable fitting for grounding
cable PA (potential equaliza-
tion)
Illustration 5-3: Location of the cable connections on the plastic housing
of the device
NOTE!
The cable fittings come supplied with protective caps. The protective caps
must remain in place covering the cable fittings until the cables are con-
nected to prevent the ingress of dirt.

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5.1.5 LED display
LED-Module (optional)
LED 2
green
LED 1 green
LED 3 red
Illustration 5-4: Location of the LED display
LED 1 illuminates when voltage is connected to the bus supply.
LED 2 illuminates when the device is registered in the TOKEN circulation.
LED 3 illuminates if the device does not receive a TOKEN for more than
5 sec.
NOTE!
Check the power supply if neither LED 2 nor LED 3 illuminates!
5.1.6 DIP-Switch
ON
Switch 1
OFF
ON
Switch 1 - ON:
Simulate can be locked so that the
READBACK_D is overwritten in the
DO_valve function block.
Illustration 5-5: Location of the DIP switch

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5.2 Technical data
Name Value
Housing material Polyester, aluminum
Color black
Ambient temperature -20 to +60 °C
Cable entry Polyamide cable fittings
Degree of protection IP 65 (DIN EN 60529)
Protection class 3 (DIN EN 61140 (VDE 0140-1))
Ignition protection identifi-
cation (entire device)
ATEX approval:
II 2 (1) G Ex e mb [ia IIC Ga] IIC T4 Gb
II 2 (1) D Ex tb [ia IIIC Da] IIIC T65 °C Db
IP65
IECEx approval:
Ex e mb [ia IIC Ga] IIC T4 Gb
Ex tb [ia IIIC Da] IIIC T65 °C Db IP65
Power supply voltage
Auxiliary supply 24 V 17 to 32 V DC
Max. current demand 200 mA (17 V)
140 mA (24 V)
110 mA (32 V)
Bus voltage 9 to 32 V DC
Bus current consumption 12 mA /17 mA FDE
Inputs 8, intrinsically safe, NAMUR
(according to EN 60947-5-6)
Outputs 4, intrinsically safe
Outputs for pilot valves
Min. switching current
Min. holding current
Internal resistance
Open-circuit voltage
30 mA1)
15 mA
330 Ohm
24 V
1) Power reduction on holding current after min. 50 ms.
Electrical connections for
inputs and outputs
Screw terminals (up to 2.5 mm2)

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Name Value
Fieldbus interface Communication according to
IEC 1158-2
According to FISCO
Type of ignition protection Ex i
Electrical connection Bus 4 screw terminals (up to 2.5 mm2)
Shield 3 screw terminals
(1x directly and 2x capacitively grounded)
Auxiliary supply
Type of ignition protection Increased safety Ex e
Electrical connection 4 screw terminals (up to 2.5 mm2)
Device keys (see type plate)
4-Lead version
Polyester housing
8643-4-PO-XX-X-XXX
4-Lead version
Aluminum housing
8643-4-AL-XX-X-XXX
NOTE!
• The maximum line resistance to the sensors and actuators is 20 W.
• The Power I/O Box Type 8643 may only be supplied with safety low volt-
age in compliance with VDE 0631.
NOTE!
• The Power I/O Box Type 8643 meets the specifications of the EMC
laws. EN61000-6-2 interference resistance and EN61000-6-4 emitted
interference.
• The safety engineering maximum values for use in the Ex area are found
in the Type Examination Certificate.

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5.3 Dimensions
260
160
188
110
240
92
Illustration 5-7: Dimensions Type 8643

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6 INSTALLATION
6.1 Safety Precautions
DANGER!
Hazard due to electrical voltage in the system!
Working on the unit involves acute risk of injury.
• Before starting work, be sure to switch off the supply voltage!
• Observe all applicable accident prevention and safety regulations for
electrical equipment during installation, operation and maintenance of
the device!
• In a potentially explosive atmosphere, only remove the connection ter-
minal cover for Ex-e circuits after the connected Ex-e electrical circuits
have been de-energized for more than 4 minutes. After 4 minutes,
the internally stored energy is completely gone and the terminals are
voltage-free.
Danger from use in unauthorized ambient temperature ranges!
Hazardous situations may arise due to use in unauthorized ambient tem-
perature ranges, especially in potentially explosive atmospheres.
• Remain within the appropriate ambient temperature range, for each
type (e. g. 8643-4-AL-KS-F-I/O), according to the table in the EC-
Type Examination Certificate.
Hazard due to unauthorized combination of the types of ignition
protection!
Hazardous situations may arise due to unauthorized combination of
types of ignition protection!
• Once the bus supply has been used in an increased ignition protec-
tion class (e), the bus supply may no longer be done at the intrinsical
standard ignition protection class (i).

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WARNING!
Unintentional operations or unauthorized tampering can lead to gen-
erally dangerous situations including personal injury.
• Take suitable measures to prevent unintentional operation or unauthor-
ized tampering!
Hazardous situations can arise during installation work.
• This work may only be carried out by authorized and explosive-atmos-
phere-trained service personnel using suitable tools!
• Adhere to the regulations applicable in the country of use for the set up /
operation of electrical equipment in potentially explosive environments!
CAUTION!
Electrostatically sensitive components / modules
The Power I/O Box Type 8643 contains electronic components that react
sensitively to electrostatic exhaust (ESD).
Contact with electrostatically charged persons or objects can endanger
these components. In the worst case they may be immediately destroyed or
fail after commissioning.
• Observe the requirements of EN 100 015 - 1 in order to avoid or to mini-
mize the risk of damage caused by sudden electrostatic discharges!
• Do not touch electronic components as long as the supply voltage is
switched on!
Functional limitations
Without potential equalization, the function of the device may be limited.
• Connect the potential equalization (PA) to the grounding terminal on the
housing.

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6.2 Installation Instructions
NOTE!
• The permissible technical data values may not be exceeded.
• Preferred installation position:
Cable fittings downwards!
• The cable fittings on the housing have a metric threading.
• Only use shielded leads for bus supply!
• Make sure the bus wiring shields are fitted as close as possible on the
designated screw terminals!
• The housing must be carefully re-closed after conclusion of the work!
NOTE!
This device complies with the EMC directive of the Council of the Euro-
pean Community No. 2004/108/EC. Observe the installation instructions
to fulfill the requirements of this directive.
6.3 Cable glands
WARNING!
Risk of explosion!
No explosion protection with defective or improper cable fittings
• Replace defective cable fittings only with Ex approved (Ex e II) cable
fittings with adequate operational temperature range (see EC-Type
Examination Certificate).
NOTE!
• All cable fittings are factory-equipped with a sealing plug
(protection class IP65).
• Seal all of the remaining open cable fittings with a sealing plug to pre-
serve the IP protection (IP65).