Burkert Positioner TopControl Basic 8694 Quick Start Manual
Quickstart
English Deutsch Français
Type 8694
Positioner TopControl Basic
Electropneumatic position controller
Elektropneumatischer Stellungsregler
Positionneur électropneumatique
We reserve the right to make technical changes without notice.
Technische Änderungen vorbehalten.
Sous réserve de modifications techniques.
© 2008-2015 Bürkert Werke GmbH
Operating Instructions 1503/06_EU-ML_00805912 / Original DE
3
1 QUICKSTART
..................................................................................................4
1.1 Definition of term / abbreviation .............................................4
1.2 Symbols .......................................................................................4
2 AUTHORIZED USE ......................................................................................5
2.1 Restrictions .................................................................................5
3 BASIC SAFETY INSTRUCTIONS ..........................................................5
4 GENERAL INFORMATION ........................................................................7
4.1 Contact address ........................................................................7
4.2 Warranty ......................................................................................7
4.3 Information on the internet ......................................................7
5 STRUCTURE AND FUNCTION...............................................................7
6 TECHNICAL DATA ........................................................................................8
6.1 Conformity ................................................................................... 8
6.2 Standards .................................................................................... 8
6.3 Licenses ......................................................................................8
6.4 Operating conditions ................................................................ 9
6.5 Mechanical data.........................................................................9
6.6 Type labels ..................................................................................9
6.7 Pneumatic data ........................................................................10
6.8 Electrical data ...........................................................................10
6.9 Factory settings of the positioner ........................................11
7 INSTALLATION
............................................................................................ 12
7.1 Safety instructions ...................................................................12
7.2 Installing the positioner on process valves belonging to
series 2103 and 23xx .............................................................12
7.3 Installing the positioner on process valves belonging to
series 26xx and 27xx ..................................................................13
8 PNEUMATIC INSTALLATION ...............................................................15
9 ELECTRICAL INSTALLATION ............................................................... 16
9.1 Safety instructions ...................................................................16
9.2 Electrical installation 24 V DC .............................................16
9.3 Electrical installation AS Interface ........................................20
10 START-UP
...................................................................................................... 21
10.1 Safety instructions ...................................................................21
10.2 Automatic adjustment X.TUNE ....................................... 21
10.3 Control and display elements ...............................................23
11 SAFETY POSITIONS ................................................................................27
12 ACCESSORIES
........................................................................................... 28
12.1 Communications software.....................................................28
12.2 USB interface ...........................................................................28
12.3 Download ..................................................................................28
13 PACKAGING, TRANSPORT, STORAGE ..........................................28
Table of contents
english
Type 8694
4
Quickstart
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 “Authorized use”.
▶ 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 positioner Type 8694.
The operating instructions can be found on the enclosed CD
and on the Internet at:
www.burkert.com
1.1 Definition of term / abbreviation
The term “device” used in these instructions always stands for the
positioner Type 8694.
In these instructions, the abbreviation “Ex” always refers to “potentially explosive”.
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.
english
Type 8694
5
Authorized use
2 AUTHORIZED USE
Non-authorized use of the positioner Type 8694 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.
▶ 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 oper-
ating instructions. These are described in the chapter 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 installa-
tion, it is essential to study and if necessary to test whether the
positioner is suitable for the actual use planned.
▶ Correct transportation, correct storage and installation and
careful use and maintenance are essential for reliable and fault-
less operation.
▶ Use the positioner Type 8694 only as intended.
2.1 Restrictions
If exporting the system/device, observe any existing restrictions.
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.
english
Type 8694
6
Basic safety instructions
General hazardous situations.
To prevent injury, ensure:
▶ In the potentially explosion-risk area the positioner Type 8691
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
explosion-risk area.
▶ Devices without a separate approval sticker may not be used in a
potentially explosive area.
▶ 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 of 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 trans-
parent cap, do not hold the actuator of the process valve but the
connection housing of Type 8694.
▶ Do not put any loads on the housing (e.g. by placing objects on it
or standing on it).
▶ Do not make any external modifications to the device housings.
NOTE!
Electrostatic sensitive components / modules.
The device contains electronic components which react sensitively
to electrostatic discharge (ESD). Contact with electrostatically
charged persons or objects is hazardous to these components. In
the worst case scenario, they will be destroyed immediately or will
fail after start-up.
▶ Observe the requirements in accordance with EN 61340-5-1 to
minimize or avoid the possibility of damage caused by sudden
electrostatic discharge.
▶ Also ensure that you do not touch electronic components when
the power supply voltage is present.
english
Type 8694
7
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: info@de.buerkert.com
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 positioner Type 8694 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 8694 can be found
on the Internet at:
www.burkert.com
5 STRUCTURE AND FUNCTION
Positioner
Actuator
Valve body
Actuator + Valve body = Process valve
Fig. 1: Structure 1
Positioner Type 8694 is an electropneumatic position controller for
pneumatically actuated control valves with single-acting actuators.
Together with the pneumatic actuator, the positioner forms a functional
unit.
The control valve systems can be used for a wide range of control
tasks in fluid technology and, depending on the application conditions,
different process valves from the Bürkert range can be combined with
the positioner. Angle seat valves, straight seat valves, diaphragm valves
or ball valves are suitable.
The position of the actuator is regulated according to the position
set-point value. The nominal position value is specified by an external
standard signal.
english
Type 8694
8
Technical data
Pilot air port
(label: 1)
Exhaust air port
(label: 3)
Pressure limiting valve
Electrical connection
(cable gland or circular
plug-in connector)
DIP Switches
Keys
Communications interface
LED
Air intake filter
Pilot air outlet only for
series 26xx and 27xx
Additional exhaust air port
(label: 3.1)
only for Type 23xx and 2103
with pilot-operated control
system for high air flow rate
(actuator size ø 130)
Connection housing
Fig. 2: Structure 2
6 TECHNICAL DATA
6.1 Conformity
In accordance with the EC Declaration of conformity, the positioner
Type 8694 is compliant with the EC Directives.
6.2 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.
6.3 Licenses
The product is approved for use in zone 2 and 22 in accordance
with ATEX directive 94/9/EC category 3GD.
Observe instructions on operation in an explosion-risk (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”.
english
Type 8694
9
Technical data
6.4 Operating conditions
WARNING!
Solar radiation and temperature fluctuations may cause malfunctions 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: Evaluated by UL:
IP65 / IP67 according to EN 60529* UL Type 4x Rating*
* Only if cables, plugs and sockets have been connected correctly and
in compliance with the exhaust air concept see chapter “8 Pneumatic
installation”.
6.5 Mechanical data
Dimensions See data sheet
Housing material exterior: PPS, PC, VA,
interior: PA 6; ABS
Sealing material EPDM / (NBR)
Stroke range
of valve spindle 2–45 mm
6.6 Type labels
6.6.1 Type label standard (example)
8694 24 V DC
single act
Pilot 0,6
Pmax 7bar
Tamb 0°C - +60°C
S/N 001000
00185134
D-74653 Ingelfingen
W14UN
CE
Identification number
Operating voltage /
Control
Max. operating
pressure
Type
Control function Pilot valve
Bar-code
Serial number CE mark
Max. ambient
temperature
Fig. 3: Type label (example)
6.6.2 UL type label (example)
8694 -E3-...-0 PU02
Single act Pilot 3.0 24V
Pmax 7 bar
Tamb -10 - +55 °C
S/N 1001
00123456
D-74653 Ingelfingen
W15MA
CE
Identification number; Date of
manufacture (encoded)
Max. operating pressure
Type; Features of the type code applicable to UL and
ATEX
Control function; pilot valve;
Supply voltage pilot valve
Bar code
Serial number; CE mark
Max. ambient temperature
Fig. 4: UL type label (example)
english
Type 8694
10
Technical data
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: 24V
Fig. 5: UL additional label (example)
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
control medium -10 – +50 °C
Pressure range
control medium 3 – 7 bar
Air output of pilot valve 7 lN/min (for aeration and deaeration)
(Q
Nn
- value according to definition for
pressure drop from 7 to 6 bar absolute)
optional: 130 lN/min
(for aeration and deaeration)
(only single-acting)
Connections Plug-in hose connector ∅ 6 mm / 1/4“
Socket connection G1/8
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 Cable gland M16 x 1.5, wrench size 22
(clamping area 5 – 10 mm)
with screw-type terminals for cable crosssections 0.14 – 1.5 mm²
Circular plug-in connector
(M12 x 1, 8-pole)
Pilot valve
Operating voltage 24 V DC ± 10 %
- max. residual ripple 10 %
Power input ≤ 3,5 W
Input resistance for
set-point value signal 75 Ω at 0/4 – 20 mA /
12 bit resolution
english
Type 8694
11
Technical data
Analogue position feedback
max. load for current output
0/4 – 20 mA 560 Ω
Digital input 0 – 5 V = log “0”,
12 – 30 V = log “1”
inverted input in reverse order
Communications
interface Direct connection to PC via USB
adapter with integrated interface
driver, communication with communications software.
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-pole)
Operating voltage 29.5 V – 31.6 V DC
(according to specification)
Devices without external supply voltage:
Max. power consumption 150 mA
Devices with external supply voltage:
External supply voltage 24 V ± 10 %
The power supply unit must include a secure disconnection in
accordance with IEC 364-4-41(PELV or SELV)
Max. power consumption 100 mA
Max. power consumption
from AS interface 50 mA
6.9 Factory settings of the positioner
Functions can be activated via DIP switches:
Function Parameter Value
CUTOFF
Sealing function below
Sealing function above
2 %
98 %
CHARACT
Select characteristic FREE
1)
DIR.CMD
Effective direction set-point
value
rise
Tab. 1: Factory settings - Functions
Additional functions are described in the operating instructions Type 8694.
These instructions can be found on the Internet at
www.burkert.com.
1)
Without change to the settings via the communications software a linear
characteristic is stored in FREE.
english
Type 8694
12
Installation
7 INSTALLATION
Only for positioner 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.
7.2 Installing the positioner on process
valves belonging to series 2103 and
23xx
NOTE!
When mounting on process valves with a welded body, follow
the installation instructions in the operating instructions for
the process valve.
When the positioner is being installed, the collets of the pilot
air ports must not be fitted to the actuator.
→ Align the puck and the positioner until
1. the puck can be inserted into the guide rail of the
positioner (see “Fig. 6”) and
2. the connection pieces of the positioner can be inserted into
the pilot air ports of the actuator (see also “Fig. 6”).
NOTE!
Damaged printed circuit board or malfunction.
▶ Ensure that the puck is situated flat on the guide rail.
Guide rail
Puck
Fig. 6: Aligning the puck
english
Type 8694
13
Installation
→ Push the positioner, 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 degree of protection IP65 / IP67.
▶ The fastening screws may be tightened to a maximum torque of
1.5 Nm only.
→ Attach the positioner to the actuator using the two side fastening
screws. In doing so, tighten the screws only hand-tight (max.
torque: 1.5 Nm).
Pilot air
ports
Connection
pieces
Fastening
screws
max. 1.5 Nm
Actuator
Fig. 7: Installing the positioner, series 2103, 2300 and 2301
7.3 Installing the positioner on process
valves belonging to series 26xx and
27xx
Procedure:
Guide rail
Puck
Fig. 8: Aligning the puck
→ Push the positioner onto the actuator. The puck must be aligned
in such a way that it is inserted into the guide rail of the positioner.
NOTE!
Damaged printed circuit board or malfunction.
▶ Ensure that the puck is situated flat on the guide rail.
→ Press the positioner all the way down as far as the actuator and
turn it into the required position.
english
Type 8694
14
Installation
Ensure that the pneumatic connections of the positioner
and those of the actuator are situated preferably vertically
one above the other (see “Fig. 9”).
NOTE!
Too high torque when screwing in the fastening screw does
not ensure degree of protection IP65 / IP67.
▶ The fastening screws may be tightened to a maximum torque of
1.5 Nm only.
→ Attach the positioner to the actuator using the two side fastening
screws. In doing so, tighten the screws only hand-tight (max.
torque: 1.5 Nm).
NOTE!
Damage or malfunction due to ingress of dirt and moisture.
To observe degree of protection IP65 / IP67:
▶ In the case of actuator size ∅ 80, ∅ 100
connect the pilot air outlet which is not required to the free pilot
air port of the actuator or seal with a plug.
▶ In the case of actuator size ∅ 125
seal the pilot air outlet 2
2
which is not required with a plug and
feed the free pilot air port of the actuator via a hose into a dry
environment.
Pilot air outlet 2
1
Pilot air outlet 2
2
Upper pilot air port
Lower pilot air port
Fastening screws
max. 1.5 Nm
Example ∅ 80,
CFA
Fig. 9: Installing the pneumatic connection to actuator, series 26xx and
27xx
→ Make the pneumatic connection between the positioner and
actuator with the “Tab. 2: Pneumatic connection to actuator”.
“In rest position” means that the pilot valves of the positioner
Type 8694 are isolated or not actuated.
english
Type 8694
15
Pneumatic installation
Control function A (CFA)
Process valve closed in rest position (by spring force)
Actuator size ∅ 80, ∅ 100
∅ 125
Positioner
Pilot air outlet
222
1
222
1
Actuator
Upper pilot air port
Lower pilot air port
Dry area
Control function B (CFB)
Process valve open in rest position (by spring force)
Actuator size ∅ 80, ∅ 100
∅ 125
Positioner
Pilot air outlet
222
1
222
1
Actuator
Upper pilot air port
Lower pilot air port
Dry area
Tab. 2: Pneumatic connection to actuator
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.
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 air line or a silencer to the exhaust air port (3)
and, if available to the exhaust air port (3.1) (see “Fig. 10”).
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. This ensures that the control behavior is
not extremely negatively affected in the upper stroke range on
account of too little pressure difference.
During operation keep the fluctuations of the pressure supply
as low as possible (max. ±10 %). If fluctuations are greater,
the control parameters measured with the X.TUNE function
are not optimum.
english
Type 8694
16
Electrical installation
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 (3) or (3.1).
Additional exhaust air port
(label: 3.1)
only for Type 23xx and 2103
with pilot-operated control system
for high air flow rate (actuator size ø 130)
Pilot air port
(label: 1)
Exhaust air port
(label: 3)
Fig. 10: Pneumatic connection
Caution: (Exhaust air concept): In compliance with degree
of protection IP67, an exhaust air line must be installed in the
dry area.
9 ELECTRICAL INSTALLATION
All electrical inputs and outputs of the device are not galvanically
isolated from the supply voltage.
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.
9.2 Electrical installation 24 V DC
Two kinds of connections are used for the electrical bonding of the
positioner:
• Cable gland with screw-type terminals
• Multi-pole with circular plug-in connector M12 x 1, 8-pole
english
Type 8694
17
Electrical installation
9.2.1 Electrical installation with cable gland
NOTE!
Breakage of the pneumatic connection pieces due to rotational impact.
▶ When unscrewing and screwing in the body casing, do not hold
the actuator of the process valve but the connection housing.
→ Unscrew the body casing (stainless steel) in a counter-clockwise
direction.
Body casing
Connection housing
Actuator
Fig. 11: Open positioner
→ Push the cables through the cable gland.
→ Connect the wires.
1
2
2)
3
2)
4
5
6
7
Fig. 12: Screw-type terminals
Input signals from the control centre (e.g. PLC)
Terminal Configuration External circuit / signal level
4
5
Set-point value +
Set-point value
GND
4
5
+ (0/4 ... 24 mA)
GND
1 Digital input + 1
+
0 ... 5 V (log. 0)
10 ... 30 V (log. 1)
with reference to terminal 7 (GND)
Tab. 3: Assignment of screw-type terminals - input signals of the control
center
Operating voltage
Terminal Configuration External circuit
6
7
Operating voltage +
Operating voltage
GND
6
7
24 V DC ± 10 %
max. residual ripple
10 %
Tab. 4: Assignment of screw-type terminals - operating voltage
english
Type 8694
18
Electrical installation
Output signals to the control center (e.g. PLC; for analog
output option only)
Terminal Configuration External circuit / signal level
2
3
Analogue position
feedback +
Analogue position
feedback GND
+ (0/4 ... 24 mA)
2
3
GND
Tab. 5: Assignment of screw-type terminals - output signals to the control
center - option
Seal
Body casing
Body casing
Connection housing
Fig. 13: Position of the seal in the body casing
→ Check that the seal is correctly positioned in the body casing.
NOTE!
Breakage of the pneumatic connection pieces due to rotational impact.
▶ When unscrewing and screwing in the body casing, do not hold
the actuator of the process valve but the connection housing.
Damage or malfunction due to penetration of dirt and humidity.
To ensure degree of protection IP65 / IP67:
▶ Tighten the union nut on the cable gland according to the cable
size or dummy plugs used (approx. 1.5 Nm).
▶ Screw the body casing in all the way.
→ Tighten union nut on the cable gland (torque approx. 1.5 Nm).
→ Close the device (assembly tool: 674077
2)
).
When the supply voltage is applied, the positioner is operating.
→ Actuate the automatic adjustment of the positioner, as described
in the chapter entitled
“10.2 Automatic adjustment X.TUNE”.
2) The assembly tool (674077) is available from your Bürkert sales office.
english
Type 8694
19
Electrical installation
9.2.2 Electrical installation 24 V DC with
circular plug-in connector
→ Connect the positioner according to the table.
6
1
7
5
4
3
2
8
Fig. 14: Circular plug M12 x 1, 8-pole
Input signals of the control center (e.g. PLC)
Pin
Wire
color
3)
Configuration External circuit / signal level
1
2
white
brown
Set-point value
+
(0/4 ... 20 mA)
Set-point value
GND
1
2
+ (0/4 ... 24 mA)
GND
5 6 grey
pink
Digital input +
Digital input
GND
5
+
0 ... 5 V (log. 0)
10 ... 30 V (log. 1)
identical to Pin 3 (GND)
Tab. 6: Pin assignment - input signals of the control center
Operating voltage
Pin
Wire
color
3)
Configuration External circuit
3 4green
yellow
GND
+ 24 V
3
4
24 V DC ± 10 %
max. residual ripple
10 %
Tab. 7: Pin assignment - operating voltage
Output signals to the control center (e.g. PLC) - (required for
analogue output option only)
Pin
Wire
color
3)
Configuration External circuit / signal level
8
7
red
blue
Analogue
position
feedback +
Analogue
position
feedback GND
+ (0/4 ... 24 mA)
8
7
GND
Tab. 8: Pin assignment - output signals of the control center - option
When the supply voltage is applied, the positioner is operating.
→ Actuate the automatic adjustment of the positioner, as described
in the chapter entitled “10.2 Automatic adjustment X.TUNE”.
3) The indicated colors refer to the connecting cable available as an
accessory (919061).
english
Type 8694
20
Electrical installation
9.3 Electrical installation AS Interface
A detailed description of the bus communication can be
found in the operating instructions Type 8694.
9.3.1 Connection with circular plug-in
connector M12 x 1, 4-pole, male
Connector views
The views show the image from the front looking at the pins, the
solder connections are behind them.
Pin 4:
NC
Pin 1:
Bus +
Pin 3:
Bus –
Pin 2:
NC
Fig. 15: Bus connection without external supply voltage
Pin 4:
24 V +
Pin 1:
Bus +
Pin 3:
Bus –
Pin 2:
GND
Fig. 16: Bus connection with external supply voltage (optional)
Bus connection without external / with external supply voltage
Pin Designation Configuration
1
Bus + AS Interface bus line +
2
NC or GND
(optional)
not used or external supply voltage –
(optional)
3
Bus – AS Interface bus line –
4
NC or 24 V +
(optional)
not used or external supply voltage +
(optional)
Tab. 9: Pin assignment of circular plug-in connector for AS Interface
When the supply voltage is applied, the positioner is operating.
→ Actuate the automatic adjustment of the positioner, as described
in the chapter entitled “10.2 Automatic adjustment X.TUNE”.
9.3.2 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 positioner 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.
The bus line may have a maximum length of 100 m. When
designing the system, consider the length of the cable which
is fed directly to the positioner for the maximum bus line length
(see example calculation in the operating instructions).
english
Type 8694
21
Start-up
Fig. 17: Positioner 8694 with multi-pole cable and ribbon cable terminal
9.3.3 Programming data AS Interface
Version Profile S-7.3.4 Version Profile S-7.A.5
I/O configuration
7 hex 7 hex
ID code 3 hex (analog profile) A hex
Extended
ID code 1
F hex (Default value, can
be changed by the user)
7 hex
Extended
ID code 2
4 hex 5 hex
Profile S-7.3.4 S-7.A.5
Tab. 10: Programming data
10 START-UP
10.1 Safety instructions
WARNING!
Risk of injury from improper operation.
Improper operation may result in injuries as well as damage to the
device and the area around it.
▶ Before start-up, ensure that the operating personnel are familiar
with and completely understand the contents of the operating
instructions.
▶ Observe the safety instructions and intended use.
▶ Only adequately trained personnel may operate the equipment/
the device.
10.2 Automatic adjustment X.TUNE
To adjust the positioner to local conditions, the X.TUNE
function must be run following installation.
WARNING!
Danger due to the valve position changing when the X.TUNE
function is running.
When the X.TUNE is running under operating pressure, there is an
acute risk of injury.
▶ Never run X.TUNE while a process is running.
▶ Take appropriate measures to prevent the equipment from being
accidentally actuated.
english
Type 8694
22
Start-up
NOTE!
Avoid maladjustment of the controller due to an incorrect
pilot pressure or applied operating medium pressure.
▶ Run X.TUNE whenever the pilot pressure (= pneumatic auxil-
iary energy) is available during subsequent operation.
• Run the X.TUNE function preferably without operating medium
pressure to exclude interference caused by flow forces.
To run X.TUNE, the positioner must be in the AUTOMATIC
operating status (DIP switch 4 = OFF).
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.
Body casing
Transparent cap
Connection housing
Actuator
Fig. 18: Open positioner
→ Screw off the transparent cap of the positioner to operate the
keys and DIP switches.
1 2 3 4
ON DIP
Communications
interface
LED 1
LED 2
DIP Switches
Key 1
Key 2
Fig. 19: Automatic adjustment X.TUNE
→ Start the X.TUNE by pressing key 1
4)
for 5 s.
While the X.TUNE is running, LED 1 flashes quickly (green).
When the automatic adjustment is complete, LED 1 flashes slowly
(green)
5)
.
The changes are automatically transferred to the memory (EEPROM)
provided the X.TUNE function is successful.
4) The X.TUNE can also be started via communications software.
5) If a fault occurs, LED 1 is lit red.
english
Type 8694
23
Start-up
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.
Damage or malfunction due to penetration of dirt and humidity.
▶ To observe degree of protection IP65 / IP67, screw the trans-
parent cap in all the way.
→ Close the device (assembly tool: 674077
6)
).
Important:
When the Teach function is activated the actuator cannot
be actuated via the AS Interface.
6) The assembly tool (674077) is available from your Bürkert sales office.
10.3 Control and display elements
A detailed description of the operation and functions of the
positioner and the communication software can be found in
the respective operating instructions.
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.
Body casing
Transparent cap
Connection housing
Actuator
Fig. 20: Open positioner
→ Screw off the transparent cap of the positioner to operate the
keys and DIP switches.
english
Type 8694
24
Start-up
1 2 3 4
ON DIP
Communications
interface
LED 1
LED 2
DIP Switches
Key 1
Key 2
Fig. 21: Description of the control elements
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.
Damage or malfunction due to penetration of dirt and humidity.
▶ To observe degree of protection IP65 / IP67, screw the trans-
parent cap in all the way.
→ Close the device (assembly tool: 674077
7)
).
7) The assembly tool (674077) is available from your Bürkert sales office.
10.3.1 Operating status
AUTOMATIC (AUTO)
Normal controller mode is implemented and monitored in AUTO-
MATIC operating state.
LED 1 flashes green.
MANUAL (MANU)
In MANUAL operating state the valve can be opened and closed
manually via the keys.
LED 1 flashes red / green alternately.
ON DIP
1
2 3 4
The DIP switch 4 can be used to switch between
the two operating states AUTOMATIC and
MANUAL.
DIP switches Function
4 ON Operating status MANUAL (MANU)
OFF Operating status AUTOMATIC (AUTO)
Tab. 11: DIP switches
english
Type 8694
25
Start-up
10.3.2 Functions of the keys
The configuration of the 2 keys on the board varies depending on the
operating status (AUTOMATIC / MANUAL).
1 2 3 4
ON DIP
Communications
interface
LED 1
LED 2
DIP switches
Key 1
Key 2
Fig. 22: Keys
MANUAL operating status (DIP switch 4 set to ON):
Key Function
8)
1 Aerate (manually open / close the actuator)
9)
2 Deaerate (manually open / close the actuator)
9)
Tab. 12: Configuration of the keys for MANUAL operating status
AUTOMATIC operating status (DIP switch 4 set to OFF):
Key Function
1 Press for 5 s to start the X.TUNE function
2 -
Tab. 13: Configuration of the keys for AUTOMATIC operating status
8) No function if the digital input was activated with the “Manual/Auto
change-over” via the communications software.
9) Depending on the operating principle of the actuator.
english
Type 8694
26
Start-up
10.3.3 Function of the DIP switches
DIP
switches
Function
ON DIP
1
2 3 4
1 ON Reversal of the effective direction of the set-point
value (set-point value 20 – 4 mA corresponds to
position 0 – 100 %), descending (DIR.CMD)
OFF Normal effective direction of the set-point value
(set-point value 4 – 20 mA corresponds to position
0 – 100 %), ascending
2 ON Sealing function active. The valve completely closes
below 2 %
10)
and opens above 98 % of the set-point
value (CUTOFF)
OFF No sealing function
3 ON Correction characteristic for adjustment of the oper-
ating characteristic (linearization of the process characteristic CHARACT)
10)
OFF Linear characteristic
4 ON Operating status MANUAL (MANU)
OFF Operating status AUTOMATIC (AUTO)
Tab. 14: DIP switches
10) Can be changed via communications software.
10.3.4 Display of the LEDs
1 2 3 4
ON DIP
Communications
interface
LED 1
LED 2
DIP switches
Key 1
Key 2
Fig. 23: Display of the LEDs
LED 1
(green / red)
Display of
AUTO, MANU, X.TUNE and FAULT
LED 2
(green / yellow)
Display of state of actuator
(open, closed, opens or closes)
english
Type 8694
Loading...