Burkert 8695 Control head User Manual
Burkert 8695 is a versatile control head designed for precise control of pneumatic actuators in process valves. Its modular design allows for integration with Burkert's 21xx series process valves and offers various expansion options. With its teach function, pressure limiting valve for protection, and comprehensive display elements, the 8695 simplifies installation, commissioning, and operation.
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Type 8695
Control Head
Steuerkopf
Tête de commande
Quickstart
English Deutsch Français
We reserve the right to make technical changes without notice.
Technische Änderungen vorbehalten.
Sous réserve de modifications techniques.
© Bürkert Werke GmbH & Co. KG, 2007 - 2021
Quickstart 2106/08_EU-ML_00805384 / Original DE
Type 8695
Table of Contents
1 QUICKSTART ........................................................................ 4
1.1 Definition of term / abbreviation .................................. 4
1.2 Symbols ....................................................................... 4
2 AUTHORIZED USE ............................................................... 5
3 BASIC SAFETY INSTRUCTIONS .......................................... 5
4 GENERAL INFORMATION .................................................... 6
4.1 Contact address .......................................................... 6
4.2 Warranty ...................................................................... 6
4.3 Information on the internet .......................................... 6
5 SYSTEM DESCRIPTION ....................................................... 7
5.1 Structure and function ................................................. 7
6 TECHNICAL DATA ................................................................. 8
6.1 Conformity ................................................................... 8
6.2 Standards .................................................................... 8
6.3 Licenses ...................................................................... 8
6.4 Operating conditions ................................................... 8
6.5 Mechanical data .......................................................... 9
6.6 Type labels ................................................................... 9
6.7 Pneumatic data ......................................................... 10
6.8 Electrical data ............................................................ 10
7 INSTALLATION .................................................................... 11
7.1 Safety instructions ..................................................... 11
7.4 Manual actuation of the actuator via pilot valve ........ 15
8 PNEUMATIC INSTALLATION .............................................. 16
9 ELECTRICAL INSTALLATION / DISPLAY ELEMENTS ....... 17
9.1 Safety instructions ..................................................... 17
9.2 Electrical installation 24 V DC ................................... 17
9.3 Display elements 24 V DC ......................................... 18
9.4 Electrical installation AS-Interface ............................. 19
9.5 Programming data ..................................................... 20
9.6 Display elements AS-Interface .................................. 20
9.7 Electrical installation DeviceNet ................................. 21
9.8 Display elements DeviceNet ...................................... 23
10 TEACH FUNCTION.............................................................. 25
11 SAFETY POSITIONS ........................................................... 27
12 ACCESSORIES ................................................................... 27
12.1 Communications software ......................................... 27
12.2 USB interface ............................................................ 27
12.3 Download .................................................................. 27
13 PACKAGING, TRANSPORT, STORAGE ............................. 28
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Type 8695
1 QUICKSTART
The Quickstart describe the entire life cycle of the device. Keep the
Quickstart in a location which is easily accessible to every user and make the Quickstart available to every new owner of the device.
Important Safety Information.
Read Quickstart carefully and thoroughly. Study in particular
the chapters entitled “Basic safety instructions” and
▶ Quickstart must be read and understood.
Quickstart explains, for example, how to install and start-up the device.
A detailed description of the device can be found in the operating instructions for control head Type 8695 .
The operating instructions can be found on the Internet at: www.burkert.com
1.1
Definition of term / abbreviation
The term “device” used in these instructions always stands for the control head Type 8695.
In these instructions, the abbreviation “Ex” always refers to
“potentially explosive atmosphere”.
1.2
Symbols
The following symbols are used in these instructions.
DANGER!
Warns of an immediate danger.
▶ Failure to observe the warning may result in a fatal or serious injury.
WARNING!
Warns of a potentially dangerous situation.
▶ Failure to observe the warning may result in serious injuries or death.
CAUTION!
Warns of a possible danger.
▶ Failure to observe this warning may result in a medium or minor injury.
NOTE!
Warns of damage to property.
indicates important additional information, tips and recommendations.
refers to information in these operating instructions or in other documentation.
▶ Designates an instruction to prevent risks.
→ designates a procedure that must be carried out.
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Type 8695
Authorized use
2 AUTHORIZED USE
Non-authorized use of the control head Type 8695 may be a hazard to people, nearby equipment and the environment.
The device is designed to be mounted on pneumatic actuators of process valves for the control of media.
▶ In the potentially explosive atmosphere the control head Type
8695 may be used only according to the specification on the separate approval sticker. For use observe the additional instructions enclosed with the device together with safety instructions for the potentially explosive atmosphere.
▶ Devices without a separate approval sticker may not be used in a potentially explosive atmosphere.
▶ Do not expose the device to direct sunlight.
▶ Use according to the authorized data, operating conditions and conditions of use specified in the contract documents and operating instructions. These are described in the chap-
ter entitled “6 Technical data”
.
▶ The device may be used only in conjunction with third-party devices and components recommended and authorized by
Bürkert.
▶ In view of the large number of options for use, before installation, it is essential to study and if necessary to test whether the control head is suitable for the actual use planned.
▶ Correct transportation, correct storage and installation and careful use and maintenance are essential for reliable and faultless operation.
▶ Use the control head Type 8695 only as intended.
3 BASIC SAFETY INSTRUCTIONS
These safety instructions do not make allowance for any
• contingencies and events which may arise during the installation, operation and maintenance of the devices.
• local safety regulations – the operator is responsible for observing these regulations, also with reference to the installation personnel.
Risk of injury from high pressure in the equipment/device.
▶ Before working on equipment or device, switch off the pressure and deaerate/drain lines.
Risk of electric shock.
▶ Before working on equipment or device, switch off the power supply and secure to prevent reactivation.
▶ Observe applicable accident prevention and safety regulations for electrical equipment.
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6
General hazardous situations.
To prevent injury, ensure:
▶ Installation and repair work may be carried out by authorized technicians only and with the appropriate tools.
▶ After an interruption in the power supply or pneumatic supply, ensure that the process is restarted in a defined or controlled manner.
▶ The device may be operated only when in perfect condition and in consideration of the operating instructions.
▶ The general rules of technology apply to application planning and operation of the device.
To prevent damage to property on the device, ensure:
▶ Do not feed any aggressive or flammable media into the pilot air port.
▶ Do not feed any liquids into the pilot air port.
▶ When unscrewing and screwing in the body casing or the transparent cap, do not hold the actuator of the process valve but the connection housing of Type 8695.
▶ Do not put any loads on the body (e.g. by placing objects on it or standing on it).
▶ Do not make any external modifications to the device bodies.
Do not paint the body parts or screws.
Type 8695
General information
4 GENERAL INFORMATION
4.1
Contact address
Germany
Bürkert Fluid Control System
Sales Center
Chr.-Bürkert-Str. 13-17
D-74653 Ingelfingen
Tel. + 49 (0) 7940 - 10 91 111
Fax + 49 (0) 7940 - 10 91 448
E-mail: [email protected]
International
Contact addresses can be found on the final pages of the printed operating instructions.
And also on the Internet at: www.burkert.com
4.2
Warranty
The warranty is only valid if the control head Type 8695 is used as intended in accordance with the specified application conditions.
4.3
Information on the internet
The operating instructions and data sheets for Type 8695 can be found on the internet at: www.burkert.com
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Type 8695
System description
5 SYSTEM DESCRIPTION
5.1
Structure and function
The control head Type 8695 can control single or double-acting process valves.
Control head
Actuator
Process valve
The control head Type 8695 has been optimized for the integrated modular fitting of series 21xx process valves (Element) with actuator size ∅ 50. Various expansion stages are possible thanks to the modular design.
For installation on the 20xx series (Classic) there is a special model.
View without transparent cap, series 21xx:
Teach function
Pressure limiting valve (for protection against too high internal pressure in case of error)
Electrical connection
Circular plug-in connector M12 x 1
Connection housing
Valve body
Fig. 1: Structure 1
Depending on the conditions of use, different process valves from the Bürkert range can be combined with the control head. Angleseat valves, globe valves and diaphragm valves of series 21xx
(Element) and 20xx (Classic) are suitable.
Exhaust air port
(label: 3)
Fastening screws (2 x)
Pilot air port
(label: 1)
Pilot air outlet 2
1
Pilot air outlet 2
2
Model for series 20xx (Classic)
Fig. 2: Structure 2 english 7
6 TECHNICAL DATA
6.1
Conformity
In accordance with the EU Declaration of conformity, the control head Type 8695 is compliant with the EU Directives.
6.2
Standards
The applied standards on the basis of which compliance with the
EU Directives is confirmed are listed in the EU type examination certificate and/or the EU Declaration of Conformity.
6.3
Licenses
The product is approved for use in zone 2 and 22 in accordance with ATEX directive 2014/34/EU category 3GD.
Observe instructions on operation in an potentially explosive atmosphere (Ex) area. Observe the ATEX additional instructions.
The product is cULus approved. Instructions for use in the UL
area see chapter “6.8 Electrical data” .
Type 8695
Technical data
6.4
Operating conditions
WARNING!
Solar radiation and temperature fluctuations may cause mal functions or leaks.
▶ If the device is used outdoors, do not expose it unprotected to the weather conditions.
▶ Ensure that the permitted ambient temperature does not exceed the maximum value or drop below the minimum value.
Ambient temperature see type label
Degree of protection
Evaluated by the manufacturer:
IP65 / IP67 according to
EN 60529 1)
Evaluated by UL:
UL Type 4x Rating indoor only 1)
Operating altitude up to 2000 m above sea level
Relative air humidity max. 90% at 55 °C / 60 °C
(non condensing)
1) Only if cables, plugs and sockets have been connected correctly and
in compliance with the exhaust air concept see chapter “8 Pneumatic installation”.
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Type 8695
Technical data
6.5
Mechanical data
Dimensions See data sheet
Body material exterior PPS, PC, VA interior PA6; ABS
Sealing material exterior EPDM / FKM
Stroke range of valve spindle
21xx series (Element) and 20xx series (Classic) AS-Interface 2 – 25 mm
24 V DC 2 – 35 mm
DeviceNet 2 – 35 mm
Third-party devices (modified guide element required) AS-Interface 2 – 34 mm
24 V DC 2 – 44 mm
DeviceNet 2 – 44 mm
6.6
Type labels
6.6.1
Type label standard (example)
Supply voltage / Control
Type
8695 24 V DC single act Pilot 0,6
Pmax 7bar
Tamb 0°C - +55°C
Ser.-Nr. 001000
00185114 W14UN
CE
Control function,
Pilot valve
Max. operating pressure
Max. ambient temperature
Serial number -
CE marking
Barcode
Identification number
Fig. 3: Type label (example)
6.6.2
UL type label (example)
Type; Features of the type code applicable to UL and ATEX
Control function; pilot valve;
Supply voltage pilot valve
8695 -E1-...-0 PU02
Single act Pilot 0.6 24V
Pmax 7 bar
Tamb -10 - +55 °C
S/N 1001
00123456
CE
W15MA
Max. operating pressure
Max. ambient temperature
Serial number / CE mark
Bar code
Identification number; Date of manufacture (encoded)
Fig. 4: UL type label (example)
6.6.3
UL additional label (example)
Degree of protection
Circuit with limited power
Supply voltage device
Type 4X enclosure
NEC Class 2 only
Supply voltage: 24 V
Fig. 5: UL additional label (example) english 9
6.7
Pneumatic data
Control medium neutral gases, air
Quality classes in accordance with ISO 8573-1
Dust content Class 7 max. particle size 40 µm, max. particle density 10 mg/m³
Water content Class 3 max. pressure dew point
- 20 °C or min. 10 °C below the lowest operating temperature
Oil content Class X max. 25 mg/m³
Temperature range -10 – +50 °C
Pressure range 3 – 7 bar
Air output of pilot valve 7 l
N
/ min (for aeration and deaeration)
(Q
Nn
- value according to definition for pressure drop from 7 to 6 bar absolute)
Connections 21xx
(Element) Plug-in hose connector ∅ 6 mm /
1/4“
Socket connection G 1/8
20xx
(Classic) Socket connection G 1/8 with M5 connection for connecting to the actuator
Type 8695
Technical data
6.8
Electrical data
WARNING!
Only circuits with limited power may be used for UL approved components according to “NEC Class 2”.
6.8.1
Electrical data without bus control
24 V DC
Protection class 3 as per DIN EN 61140 (VDE 0140-1)
Connections Circular plug-in connector
(M12 x 1, 8-pin)
Pilot valve
Supply voltage 24 V DC ± 10% - max. residual ripple 10 %
Power input max. 1 W
Output max. 100 mA per output
Display max. 20 mA per illustrated illuminated display (LED)
6.8.2
Electrical data with AS-Interface bus control
Protection class 3 as per DIN EN 61140 (VDE 0140-1)
Connections Circular plug-in connector (M12 x 1,
4-pin)
Profile S-B.A.E. (A/B slave, max. 62 slaves/ master)
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Type 8695
Installation
Supply voltage 29.5 V – 31.6 V DC (according to specification)
Outputs
Max. switching capacity 1 W via AS-Interface
Watchdog function integrated
Max. power consumption 120 mA
Power consumption input during normal operation
(after current reduction; valve + 1 end position reached) 90 mA
6.8.3
Electrical data with DeviceNet bus control
Protection class 3 as per DIN EN 61140 (VDE 0140-1)
Connections Circular plug-in connector (M12 x 1,
5-pole)
Supply voltage 11 V – 25 V
Max. power consumption < 80 mA
Output Pull-in current current ≤ 50 mA
Holding current ≤ 30 mA
7 INSTALLATION
Only for control head without pre-assembled process valve.
7.1
Safety instructions
DANGER!
Risk of injury from high pressure in the equipment/device.
▶ Before working on equipment or device, switch off the pressure and deaerate/drain lines.
Risk of electric shock.
▶ Before working on equipment or device, switch off the power supply and secure to prevent reactivation.
▶ Observe applicable accident prevention and safety regulations for electrical equipment.
WARNING!
Risk of injury from improper installation.
▶ Installation may be carried out by authorized technicians only and with the appropriate tools.
Risk of injury from unintentional activation of the system and an uncontrolled restart.
▶ Secure system from unintentional activation.
▶ Following assembly, ensure a controlled restart.
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7.2
Installation of the control head on process valves of series 21xx
NOTE!
When mounting on process valves with a welded body, follow the installation instructions in the operating instructions for the process valve.
When the control head is being installed, the collets of the pilot air ports must not be fitted to the actuator.
NOTE!
Damaged printed circuit board or malfunction.
▶ Ensure that the puck is situated flat on the guide rail.
→ Align the puck and the control head until
1. the puck can be inserted into the guide rail of the
control head (see “Fig. 6”) and
2. the connection pieces of the control head can be inserted
into the pilot air ports of the actuator (see also “Fig. 7”).
Connection pieces
Guide rail
Type 8695
Installation
→ Push the control head, without turning it, onto the actuator until no gap is visible on the form seal.
NOTE!
Too high torque when screwing in the fastening screw does not ensure protection class IP65 / IP67.
▶ The fastening screws may be tightened to a maximum torque of 1.5 Nm only.
→ Attach the control head to the actuator using the two side fastening screws. In doing so, tighten the screws only handtight (max. torque: 1.5 Nm).
Connection pieces
Pilot air ports
(actuator)
Fastening screws max. 1.5 Nm
Fig. 7: Installation of control head, 21xx series
Fig. 6: Aligning the puck
Puck
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Type 8695
Installation
7.3
Installation of the control head on process valves of series 20xx
Procedure:
Guide rail
Ensure that the pneumatic connections of the control head and those of the valve actuator are situated pref-
erably vertically one above the other (see “Fig. 9”).
NOTE!
Too high torque when screwing in the fastening screw does not ensure protection class IP65 / IP67.
▶ The fastening screws may be tightened to a maximum torque of 1.5 Nm only.
→ Attach the control head to the actuator using the two side fastening screws. In doing so, tighten the fastening screws hand-tight only (maximum torque: 1.5 Nm).
Puck
Fig. 8: Aligning the puck
NOTE!
Damaged printed circuit board or malfunction.
▶ Ensure that the puck is situated flat on the guide rail.
→ Push the control head onto the actuator. The puck must be aligned in such a way that it is inserted into the guide rail of the
→ Press the control head all the way down as far as the actuator and turn it into the required position.
Fastening screws (2x)
Pilot air outlet 2
Pilot air outlet 2
1
2
Upper pilot air port
Lower pilot air port
Fig. 9: Installing the pneumatic connection, 20xx series english 13
Type 8695
Installation
→ Screw the plug-in hose connectors onto the control head and the actuator.
→ Using the hoses supplied in the accessory kit, make the pneumatic connection between the control head and actuator
with the “Tab. 1: Pneumatic connection to actuator” .
NOTE!
Damage or malfunction due to ingress of dirt and moisture.
▶ To comply with protection class IP65 / IP67, connect the pilot air outlet (only for CFA or CFB) which is not required to the free pilot air port of the actuator or seal with a plug.
“In rest position” means that the pilot valves of the control head Type 8695 are isolated or not actuated.
If the ambient air is humid, a hose can be connected between pilot air outlet 2
2
of the control head and the unconnected pilot air port of the actuator for control function A or control function B. As a result, the spring chamber of the actuator is supplied with dry air from the vent duct of the control head.
Control function A (CFA)
Process valve closed in rest position (by spring force)
Pilot air outlet 2
2
2
1
2
2
2
1
Upper pilot air port or
Lower pilot air port
Control function B (CFB)
Process valve open in rest position (by spring force)
Pilot air outlet 2
2
2
1
2
2
2
1
Upper pilot air port
Lower pilot air port
Control function I (CFI)
Process valve in rest position
Pilot air outlet 2
2 closed
2
1 or open
2
2
2
1
Upper pilot air port
Lower pilot air port
Tab. 1: Pneumatic connection to actuator
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Type 8695
Installation
7.4
Manual actuation of the actuator via pilot valve
The actuator can be moved without a power supply from the rest position to its end position and back again, when the control air is connected .
To do this, the pilot valve must be actuated with a screwdriver.
NOTE!
The hand lever may be damaged if it is simultaneously pressed and turned.
▶ Do not press the hand lever when turning it.
Pilot valve non activated
(normal position)
Hand lever to the left
Hand lever
Pilot valve activated
Hand lever to the right
Fig. 10: Pilot valve for aerate and deaerate the actuator
Move actuator to end position
→ Turn the hand lever to the right using a screwdriver.
Note: Do not press the hand lever when turning it
Move actuator back to the rest position
→ Turn the hand lever to the left using a screwdriver.
Note: Do not press the hand lever when turning it english 15
Type 8695
Pneumatic installation
8 PNEUMATIC INSTALLATION
DANGER!
Risk of injury from high pressure in the equipment/device.
▶ Before working on equipment or device, switch off the pressure and deaerate/drain lines.
WARNING!
Risk of injury from improper installation.
▶ Installation may be carried out by authorized technicians only and with the appropriate tools.
Risk of injury from unintentional activation of the system and an uncontrolled restart.
▶ Secure system from unintentional activation.
▶ Following installation, ensure a controlled restart.
Procedure:
→ Connect the control medium to the pilot air port (1)
(3 – 7 bar; instrument air, free of oil, water and dust).
→ Attach the exhaust airline or a silencer to the exhaust air port
(3)
(see “Fig. 11: Pneumatic connection”).
Keep the adjacent supply pressure always at least 0.5 –
1 bar above the pressure which is required to move the actuator to its end position.
Important information for the problem-free functioning of the device:
▶ The installation must not cause back pressure to build up.
▶ Select a hose for the connection with an adequate cross-section.
▶ The exhaust air line must be designed in such a way that no water or other liquid can get into the device through the exhaust air port.
Pilot air port
(label: 1)
Exhaust air port
(label: 3)
Fig. 11: Pneumatic connection
Caution: (Exhaust air concept) :
In compliance with protection class IP67, an exhaust air line must be installed in the dry area.
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Type 8695
Electrical installation / display elements
9 ELECTRICAL INSTALLATION /
DISPLAY ELEMENTS
9.1
Safety instructions
DANGER!
Risk of electric shock.
▶ Before working on equipment or device, switch off the power supply and secure to prevent reactivation.
▶ Observe applicable accident prevention and safety regulations for electrical equipment.
WARNING!
Risk of injury from improper installation.
▶ Installation may be carried out by authorized technicians only and with the appropriate tools.
Risk of injury from unintentional activation of the system and an uncontrolled restart.
▶ Secure system from unintentional activation.
▶ Following installation, ensure a controlled restart.
Minimum temperature rating of the cable to be connected to the field wiring terminals: 75 °C
9.2
Electrical installation 24 V DC
→ Connect the control head according to the table.
The teach function can now be used to automatically determine and read in the end positions of the valve (description of the
teach function see chapter “10 Teach function”).
6
5
7
8
1
Fig. 12: Circular plug M12 x 1, 8-pole
2
4
3
Pin Wire color 2) Designation
6
7
4
5
8
1
2
3 white brown green yellow grey pink
Limit switch top
Limit switch bottom
Supply voltage
Supply voltage +
Valve control unit +
Valve control unit -
-
-
Tab. 2: Connection with circular plug-in connector
Configuration
IN 1 (=Top)
IN 2 (=Bot)
GND
24 V DC
Valve +
Valve not used not used
2) The indicated colors refer to the connecting cable available as an accessory (919061).
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Type 8695
Electrical installation / display elements
9.3
Display elements 24 V DC
NOTE!
Breakage of the pneumatic connection pieces due to rotational impact.
▶ When unscrewing and screwing in the transparent cap, do not hold the actuator of the process valve but the connection housing.
→ Unscrew the transparent cap in a counter-clockwise direction.
Transparent cap
Body casing
Connection housing
Actuator
Fig. 13: Open control head
End position LED green
Jumper for assignment of end position LEDs
Status LED yellow
End position LED yellow
Valve LED yellow (pilot valve)
Fig. 14: Display elements 24 V DC
LED State
End position LED green on
End position LED yellow on
LED Valve yellow
Status LED yellow on
End position bottom
End position top 3)
3)
Pilot valve is actuated flashing Teach function is running flickers Puck PCB not available
Tab. 3: Display elements 24 V DC
NOTE!
Damage or malfunction due to penetration of dirt and humidity.
▶ To observe protection class IP65 / IP67, screw the transparent cap in all the way.
3) Color setting ex works. Can be set via jumper (see “Fig. 14”).
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Type 8695
Electrical installation / display elements
9.4
Electrical installation AS-Interface
9.4.1
Connection with circular plug-in connector
M12 x 1, 4-pole, male
Pin 4:
NC
Pin 3:
Bus –
9.4.2
Connection with multi-pole cable and ribbon cable terminal
As an alternative to the bus connection model with 4-pole circular plug, there is the control head with multi-pole cable (M12 circular plug) and ribbon cable terminal. The wiring diagram of the circular plug corresponds to the bus connection of the M12 4-pole circular plug and can easily be connected to the ribbon cable terminal (see
Pin 1:
Bus +
Pin 2:
NC
Fig. 15: Connection with circular plug-in connector, AS-Interface
Pin Designation Configuration
1
2
3
4
Bus +
NC
Bus –
NC
AS-Interface bus line + not used
AS-Interface bus line not used
Tab. 4: Pin assignment of circular plug-in connector for AS-Interface
→ Connect the control head according to the table.
The teach function can now be used to automatically determine and read in the end positions of the valve (description of the
teach function see chapter “10 Teach function”).
For the bus variant AS-Interface, the teach function can also be started via the bus protocol.
Screws
M12 plug-in connector branch circuit
Fig. 16: Control head 8695 with multi-pole cable and ribbon cable terminal
Handling the ribbon cable terminal
The multi-pole cable features a ribbon cable terminal - with M12 plug-in connector branch circuit - for AS-Interface cable harness.
The ribbon cable terminal contacts the AS-Interface cable harness by means of penetration technology which allows installation by
“clipping in” the AS-Interface cable harness without cutting and without removing insulation.
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Procedure:
→ Open the ribbon cable terminal
(loosen screws and remove cover)
→ Insert cable harness conclusively
→ Close ribbon cable terminal again
→ Tighten screws
Slightly undo thread-forming screws
(approx. 3/4 turn to the left) and position them on the existing tapped bore and screw in.
The teach function can now be used to automatically determine and read in the end positions of the valve (description of the
teach function see chapter “10 Teach function”).
9.5
For the bus variant AS-Interface, the teach function can also be started via the bus protocol.
Programming data
I/O configuration
ID code
Extended ID code 1
Extended ID code 2
Profile
Tab. 5: Programming data
B hex
A hex
7 hex
E hex
S-B.A.E
Type 8695
Electrical installation / display elements
9.6
Display elements AS-Interface
NOTE!
Breakage of the pneumatic connection pieces due to rotational impact.
▶ When unscrewing and screwing in the transparent cap, do not hold the actuator of the process valve but the connection
housing (see “Fig. 13: Open control head”)
.
End position LED green
Bus LED red
Bus LED green
Status LED yellow
Jumper for assignment of end position
LEDs Valve LED yellow
(pilot valve)
End position LED yellow
Fig. 17: Display Elements AS-Interface
NOTE!
Damage or malfunction due to penetration of dirt and humidity.
▶ To observe protection class IP65 / IP67, screw the transparent cap in all the way.
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Type 8695
Electrical installation / display elements
Bus LED
(green) off off on
Bus LED
(red) off on off
POWER OFF
No data traffic (expired Watch Dog at slave address does not equal 0)
OK flashing on Slave address equals 0 off flashing
Sensor supply overloaded or external reset
Tab. 6: LED Status display bus status
LED
Status LED yellow
State flashing Teach function is running flickers Puck PCB not available
End position LED green on End position bottom 4)
End position LED yellow on End position top 4)
LED Valve yellow on
Tab. 7: Display elements AS-Interface
Pilot valve is actuated
4) Color setting ex works. Can be set via jumper (see “Fig. 17”).
9.7
Electrical installation DeviceNet
9.7.1
Bus connection (circular connector M12 x
1, 5-pole, male)
The control head features a 5-pole micro-style circular connector.
The following configuration conforms to the DeviceNet specification.
→ Connect the control head according to the table.
Pin 1 2 3 4 5
Signal Shielding V + V – CAN_H
Tab. 8: Pin assignment circular plug-in connector DeviceNet
CAN_L
Pin 4: CAN_H white
Pin 5: CAN_L blue
Pin 1: Drain
(Shield)
Pin 3: V– black
Pin 2: V+ red max. power 3 W, if valve is switched
Fig. 18: View of plug from the front onto the pins, the soldered connections are behind english 21
9.7.2
Configuring the control head
Setting the DIP switches
1 2 3 4 5 6 7 8
OFF
DIP switches for bus address and baudrate
Fig. 19: DIP switches DeviceNet
8 DIP switches are available for configuration:
• DIP switches 1 to 6
• DIP switches 7 to 8 for the DeviceNet address for the baudrate
Procedure:
NOTE!
Breakage of the pneumatic connection pieces due to rotational impact.
▶ When unscrewing and screwing in the transparent cap, do not hold the actuator of the process valve but the connection housing.
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Type 8695
Electrical installation / display elements
→ Unscrew the transparent cap in a counter-clockwise direction.
Transparent cap
Body casing
Connection housing
Actuator
Fig. 20: Open control head
→ Set the DIP switches according to the following tables.
Settings of the DeviceNet address
MAC ID – Medium Access Control Identifier:
[DIP 1=off=0 / DIP 1=on=1 /
MAC ID=DIP 1*2 0 +DIP 2*2 1 +...+DIP 6*2 5 ]
DIP 1
[20=1] off
DIP 2
[21=2] off
DIP 3
[22=4] off
DIP 4
[23=8] off
DIP 5
[24=16] off on off off on off off off off off off
...
off
...
on
...
on
...
on
...
on on on on on on
Tab. 9: Settings of the DeviceNet address
DIP 6
[25=32] MAC ID off 0 off off
...
on on
1
2
...
62
63
Type 8695
Electrical installation / display elements
Setting the baudrate
Adjusting the control head to the baudrate of the network.
DIP 7 DIP 8 off on off on off off on on
Tab. 10: Setting the baudrate
NOTE!
Baudrate
125 kBaud
250 kBaud
500 kBaud not permitted
Damage or malfunction due to penetration of dirt and humidity.
▶ To observe protection class IP65 / IP67, screw the transparent cap in all the way.
→ Close the device (assembly tool: 674078 5) ).
If the settings are changed by actuating the DIP switches, this change will not take effect until the device is restarted.
The teach function can now be used to automatically determine and read in the end positions of the valve (description of the
teach function see chapter “10 Teach function”).
For the bus variant DeviceNet, the teach function can also be started via the bus protocol as well as the communicator software.
5) Theassemblytool(674078)isavailablefromyourBürkertsalesoffice.
9.8
Display elements DeviceNet
NOTE!
Breakage of the pneumatic connection pieces due to rotational impact.
▶ When unscrewing and screwing in the transparent cap, do not hold the actuator of the process valve but the connection
housing (see “Fig. 20: Open control head”)
.
End position LED green
Device status LED
(two-colored: red/ green)
End position LED yellow
Status LED (yellow)
Bus status LED (twocolored: red/green)
Valve LED yellow
(pilot valve)
Fig. 21: LED display - DeviceNet english 23
LED
Status LED
Color flashing yellow flickers yellow
End position
LEDs 6) is lit green is lit yellow
Valve LED
Pilot valve is lit yellow
Tab. 11: Display elements - DeviceNet
Teach function is running
Puck PCB not available
End position bottom
End position top
Pilot valve is actuated
NOTE!
Damage or malfunction due to penetration of dirt and humidity.
▶ To observe protection class IP65 / IP67, screw the transparent cap in all the way.
Type 8695
Electrical installation / display elements
Status of the bus status LED
LED Device status Explanation Troubleshooting
Off
Green
Flashes green
Flashes red
Device is not supplied with voltage
No power supply / not online
Device has still not ended Duplicate MAC
ID Test (test lasts approx. 2 sec)
Device cannot end
Duplicate MAC ID Test.
Online, connection to master exists
Online, without connection to master
Normal operating status with established connection to the master
Normal operating status without established connection to the master
Connect other devices, if the device is the only network subscriber,
Replace device
Check baud rate
Check bus connection
Connection time-Out
One or more I/O connections are in Time-
Out state
New connection establishment by master to ensure that the I/O data is transmitted cyclically.
6) Color setting ex works.
24 english
Type 8695
Teach function
LED Device status Explanation
Another device with the same MAC ID address is in the circuit
Red Critical fault
No bus connection due to communication problems
Tab. 12: Status of the bus status LED
Troubleshooting
Check baud rate
If required, replace device
Status of the device status LED
LED Device status Explanation
Off No supply Device is not supplied with voltage
Green Device is working Normal operating status
Tab. 13: Status of the device status LED
10 TEACH FUNCTION
The teach function can be used to automatically determine and read in the end positions of the valve.
For the bus variant AS-Interface, the teach function can also be started via the bus protocol.
For the bus variant DeviceNet, the teach function can also be started via the bus protocol as well as the communicator software.
10.1 Starting the teach function (calibrating the end position)
Necessary requirements:
Before you can actuate the teach function, you must
• mount the control head on the actuator,
• connect the supply voltage and
• connect the compressed-air supply.
DANGER!
Danger due to the valve position changing when the teach function is running.
When the teach function is running under operating pressure, there is an acute risk of injury.
▶ Never run the teach function while a process is running.
▶ Secure system from unintentional activation.
english 25
Type 8695
Teach function
Procedure :
NOTE!
Breakage of the pneumatic connection pieces due to rotational impact.
▶ When unscrewing and screwing in the transparent cap, do not hold the actuator of the process valve but the connection housing.
Transparent cap
Body casing
Connection housing
Actuator
Fig. 22: Open control head
→ Open the control head: turning the transparent cap anti-clockwise.
→ The key in recess for actuating the teach function keep pressed for approximately 5 seconds.
NOTE!
Damage or malfunction due to penetration of dirt and humidity.
▶ To observe protection class IP65 / IP67, screw the transparent cap in all the way.
Key in recess for actuating the Teach function (keep pressed for approximately 5 seconds)
Fig. 23: Teach function
→ Close the device (assembly tool: 674078 7) ).
Chronological description of the teach function:
• the bottom position is read in internally
• the pilot valve switches
• the actuator moves automatically to the top position
• the top position is read in internally
• the pilot valve is turned off
• the actuator moves back to the home position.
Important:
When the teach function is activated the actuator cannot be actuated via the communication interface.
7) Theassemblytool(674078)isavailablefromyourBürkertsalesoffice.
26 english
11 SAFETY POSITIONS
Actuator system up down
Designation single-acting
Control function A
Safety positions after failure of the auxiliary power electrical pneumatic down down up down single-acting
Control function B up down
Tab. 14: Safety positions doubleacting
Control function I up up down not defined
Type 8695
Safety positions
12 ACCESSORIES
Designation
Connection cable M12 x 1, 8-pole
Assembly tool
USB adapter for connection to a PC in conjunction with an extension cable
Order no.
919061
674078
227093
Communicator
Information at www.burkert.com
Tab. 15: Accessories
12.1
Communications software
The PC operating program “Communicator” is designed for communication with the devices with bus control via DeviceNet from
Bürkert. Devices constructed since April 2014 support the full range of functions. If you have any questions regarding compatibility, please contact the Bürkert Sales Center.
A detailed description and precise schedule of the procedure for the installation and operation of the software can be found in the associated documentation.
12.2
USB interface
The PC requires an USB interface for communication with the devices as well as an additional adapter with interface driver (see
The data transfer must be according to HART specification.
12.3
Download
Download the software at: www.burkert.com
27 english
13 PACKAGING, TRANSPORT,
STORAGE
NOTE!
Transport damages.
Inadequately protected equipment may be damaged during transport.
▶ During transportation protect the device against wet and dirt in shock-resistant packaging.
▶ Avoid exceeding or dropping below the permitted storage temperature.
Incorrect storage may damage the device.
▶ Store the device in a dry and dust-free location.
▶ Storage temperature -20 – +65 °C.
Damage to the environment caused by device components contaminated with media.
▶ Dispose of the device and packaging in an environmentally friendly manner.
▶ Observe applicable regulations on disposal and the environment.
28 english
Type 8695
Packaging, Transport, Storage
www.burkert.com
Download
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