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Type 8692, 8693 REV.2
We reserve the right to make technical changes without notice.
© Bürkert Werke GmbH & Co. KG, 2017 - 2021
Operating Instructions 2103/07_EU-EN_00810576 / Original DE
Type 8692, 8693 REV.2
C ontents
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Type 8692, 8693 REV.2
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Rotating the Types 8692/8693 for process valves belonging to series 26xx and 27xx ..........43
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Type 8692, 8693 REV.2
12.2.3 Terminal assignment: Process actual value input
13.1.1 Description of the symbols which are displayed on the process level .......................59
– Manual configuration of X.TUNE
...............................................75
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Type 8692, 8693 REV.2
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– Setting up and parameterization of the process controller ............................77
15.2.1 – Specifying signal type for the process actual value ..............................78
15.2.3 – Type of the set-point value default (internal or external) .......................82
15.2.4 – Scaling of the process set-point value
15.2.5 P.CO-INIT – Smooth switchover MANUAL-AUTOMATIC ...........................................83
– Parameterizing the process controller .....................................................84
15.5.1 The operating mode of P.TUNE
.................................................................................91
15.5.2 Preparatory measure for execution of P.TUNE
..........................................................91
– Parameterization of the position controller ......................................105
16.1.11 – Setting up and parameterization of the process controller ..............106
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Type 8692, 8693 REV.2
16.1.14 – Configuration of signal level fault detection .....................................108
– Activation of the digital input ..............................................................110
16.1.17 – Calibration of actual value and set-point value ..................................117
16.2.3 – Menu for simulation of set-point value, process and process valve ....
16.2.4 – Menu for monitoring valves (option) ...................................................128
16.3.1 Description of the menu for the manual configuration of X.TUNE ..........................146
19.5.1 Differences between the fieldbus devices and devices without a field bus .............172
19.5.2 – Settings on Type 8692, 8693 ...........................................................172
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Type 8692, 8693 REV.2
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21.3.1 Error and warning messages while the X.TUNE
function is running ........................177
21.3.3 Error messages while the P.TUNE
function is running ............................................178
27.3.1 Adjustment rules according to Ziegler and Nichols (oscillation method) .................192
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Type 8692, 8693 REV.2
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Type 8692, 8693 REV.2
Operating instructions
The operating instructions describes the entire life cycle of the device. Keep these instructions in a location which is easily accessible to every user, and make these instructions available to every new owner of the device.
Important safety information.
Failure to observe these instructions may result in hazardous situations.
▶ The operating instructions must be read and understood.
1.1 Symbols
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 moderate or minor injury.
NOTICE
Warns of damage to property.
▶ Failure to observe the warning may result in damage to the device or the equipment.
indicates important additional information, tips and recommendations.
refers to information in these operating instructions or in other documentation.
▶ designates instructions for risk prevention.
→ designates a procedure which you must carry out.
markiert ein Resultat.
1.2
The term “device” used in these instructions applies to the compact position controller / process controller of type 8692/8693 REV.2.
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Type 8692, 8693 REV.2
Authorized use
Non-authorized use of the positioner Type 8692 and the process controller Type 8693 can be dangerous 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 a potentially explosive atmosphere, Type 8692 and 8693 may be used only in accordance with the specification on the separate Ex type label. For the use, observe the ATEX manual with safety instruc tions for the Ex area.
▶ Devices without a separate Ex type label may not be used in a potentially explosive atmosphere.
▶ The device must not be exposed to direct sunlight.
▶ Pulsating direct voltage (rectified alternating voltage without smoothing) must not be used as operating voltage.
▶ During use observe the permitted data, the operating conditions and conditions of use specified in
manual and in the valve manual for the respective pneumatically actuated valve.
▶ The device may be used only in conjunction with third-party devices and components recommended and authorised by Bürkert.
▶ In view of the wide range of possible application cases, check whether the device is suitable for the specific application case and check this out if required.
▶ Correct transportation, correct storage and installation and careful use and maintenance are essential for reliable and faultless operation.
▶ Use the device only as intended.
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Type 8692, 8693 REV.2
Basic safety instructions
These safety instructions do not consider any contingencies or incidents which occur during installation, operation and maintenance.
The operator is responsible for observing the location-specific safety regulations, also with reference to the personnel.
Risk of injury from high pressure in the system/device.
▶ Before working on the system or device, switch off the pressure and vent/drain lines.
Risk of injury due to electrical shock.
▶ Before reaching into the device or the equipment, switch off the power supply and secure to prevent reactivation.
▶ Observe applicable accident prevention and safety regulations for electrical equipment.
General hazardous situations.
To prevent injuries:
▶ The device must only be operated when in a perfect condition and in consideration of the operating instructions.
▶ Secure the system/device from unintentional actuation.
▶ Only trained technicians may perform installation and maintenance work.
▶ After an interruption in the power supply, ensure that the process is restarted in a controlled manner.
▶ Observe the general rules of technology.
To prevent damage to the device:
▶ When unscrewing and screwing the housing jacket (with transparent cap) in, do not hold the actuator but the electrical connection housing of Type 8692/8693.
▶ Do not supply the pilot air port with aggressive or flammable media or fluids.
▶ Do not make any internal or external changes on the device and do not subject it to mechanical stress.
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 minimise or avoid the possibility of damage caused by sudden electrostatic discharge.
▶ Also ensure that you do not touch electronic components when the operating voltage is present.
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Type 8692, 8693 REV.2
General information
4.1
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 brief instructions (Quickstart).
And also on the internet at: www.burkert.com
4.2
The warranty is only valid if the Type 8692/8693 are used as intended in accordance with the specified appli cation conditions.
4.3
Operation of the device can be locked via a freely selectable user code. In addition, there is a non-changeable master code with which you can perform all operator actions on the device. This 4-digit master code can be found on the last pages of the printed brief instructions which are enclosed with each device.
If required, cut out the code and keep it separate from these operating instructions.
4.4
The operating instructions and data sheets for Type 8692 and 8693 can be found on the Internet at: www.burkert.com
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Type 8692, 8693 REV.2
Product description
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5.1
Position controller Type 8692 and process controller Type 8693 is a digital electropneumatic position controller for pneumatically actuated control valves with single-acting or double-acting actuators. The device incorporates the main function groups
- Position sensor
- Electro-pneumatic actuating system
- Microprocessor electronics
The position sensor measures the current positions of the continuous valve.
The microprocessor electronics continuously compare the current position (actual value) with a set-point position specified via the standard signal input and supplies the result to the position controller.
If there is a control difference, the electro-pneumatic actuating system corrects the actual position accordingly.
5.2
• Variants
- Position controller, Type 8692
- Process controller with integrated position controller, Type 8693
Types 8692 and 8693 are available for both single-acting and double-acting actuators.
• Position sensor
A non-contact and therefore wear-free position sensor.
• Microprocessor-controlled electronics for signal processing, control and valve control.
• Control module
The device is operated by 4 keys. The 128 x 64 dot matrix graphics display enables you to display the set-point value or actual value and to configure and parameterize via menu functions.
• Actuating system
For low air flow rate:
The direct-acting model has an orifice of DN 0.6.
The actuating system for single-acting actuators consists of 2 solenoid valves and of 4 solenoid valves for double-acting actuators. In single-acting actuators, one valve serves for the aeration and another for the deaeration of the pneumatic actuator. Double-acting actuators feature 2 valves for aeration and deaeration.
For high air flow rate:
Orifice DN 2.5 is also available for pneumatic actuators (single-acting only).
The solenoid valves are equipped with diaphragm amplifiers to increase the maximum flow and therefore to improve the dynamics.
• Position feedback (optional)
Feedback is either via digital outputs or via an output (4...20 mA / 0...10 V).
When the valve reaches an upper or lower position, this position can be relayed e.g. to a PLC via digital outputs.
• Pneumatic interfaces
1/4“ connections with different thread forms (G, NPT) or hose plug-in connection.
• Electrical interfaces
Circular plug-in connector or cable gland.
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Type 8692, 8693 REV.2
Product description
• Housing
The housing of Type 8692, 8693 is protected from excessively high internal pressure, e.g. due to leaks, by a pressure limiting valve.
5.3
Position controller Type 8692 and process controller Type 8693 can be mounted on different process valves from the Bürkert range.
Angle seat valves, straight seat valves, control valves, diaphragm or ball valves are suitable (see chapter
„5.3.1 Overview of mounting possibilities / features of valve types“ auf Seite 16) .
• For single-acting actuators, only one chamber is aerated and deaerated during actuation. The generated pressure works against a spring. The piston moves until there is an equilibrium of forces between compressive force and spring force.
• For double-acting actuators the chambers on both sides of the piston are pressurized. In this case, one chamber is aerated when the other one is deaerated and vice versa.
There are two different procedures for valve installation.
two procedures are explained in chapter „11 Installation“ based on these examples.
Positioner Type 8692 or
Process controller Type
8693
(pneumatic) actuator
Valvel as an example of
Types 26XX and 27XX
Valve body
Figure 1: Mounting variants. Valve types with different installation
Valve as an example of Types 2103,
2300 and 2301
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Type 8692, 8693 REV.2
Product description
5.3.1
Types
Angle seat control valves / globe control valves
• 2702
• 2712
• 2300
• 2301
Features • incoming flow under seat
Typical media
Table 1:
• closes smoothly
• straight flow path of the medium
• self-adjusting stuffing box for high leak-tightness
•
•
•
•
•
Diaphragm valves
2730
2103
2731 medium is hermetically separated from the actuator and environment cavity-free and selfdraining body design
•
•
•
Ball valves
2652
2655
2658
• scrapable
• minimum dead space
• unaffected by contamination
• little pressure loss compared to other valve types
• any flow direction with low-turbulence flow
• steam-sterilizable
• CIP-compliant
• closes smoothly
• actuator and diaphragm can be removed when the body is installed
• neutral gases and liquids
• seat and seal can be exchanged in the three-piece ball valve when installed
Information Can be used as process controller only
• water, steam and gases
• neutral gases and liquids
• alcohols, oils, propellants, hydraulic fluids
• contaminated, abrasive and aggressive media
• salt solutions, lyes
(organic) • media of higher viscosity
• solvents
Overview of mounting possibilities / features of valve types
• clean water
• slightly aggressive media
•
•
Flap valves
• 2672
• 2675 unaffected by contamination
• little pressure loss compared to other valve types inexpensive
• low construction volume
• neutral gases and liquids
• slightly aggressive media
Different actuator sizes and valve orifices are available for each valve type. More precise specifications can be found on the respective data sheets. The product range is being continuously expanded.
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Type 8692, 8693 REV.2
Product description
5.4
5.4.1
The position of the actuator is regulated according to the set-point position. The set-point position is specified by an external standard signal (or via field bus).
The position controller Type 8692 is operated with a 128 x 64 dot matrix graphics display and a keypad with
4 keys.
5.4.2
Type 8693 also features a PID controller which, apart from actual position control, can also be used to implement process control (e.g. level, pressure, flow rate, temperature) in the sense of a cascade control.
The process controller Type 8693 is operated with a 128 x 64 dot matrix graphics display and a keypad with
4 keys.
The process controller is linked to a control circuit. The set-point position of the valve is calculated from the process set-point value and the process actual value via the control parameters (PID controller). The process set-point value can be specified by an external signal.
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Type 8692, 8693 REV.2
Structure and function
The position controller Type 8692 and the process controller Type 8693 consist of the micro-processor controlled electronics, the position sensor and the actuating system.
The device is designed using three-wire technology. The device is operated by 4 keys and a 128 x 64 dot matrix graphics display.
The pneumatic actuating system for single or double-acting actuators consists of 2 or 4 solenoid valves.
6.1
Transparent cap
Housing jacket
Pressure limiting valve
(for protection against too high internal pressure in case of error)
Electrical connection housing
(Connection variant with circular plug-in connector)
Exhaust air port
(Label: 3)
Pilot air port
(Label: 1)
Control module with display and keys
(View without transparent cap)
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Figure 2: Structure, Type 8692, 8693 english
Additional exhaust air port
(Label: 3.1) only for Types 23xx and 2103 with pilot-controlled control system for a high air flow rate from actuator size ø 125 / 130
Air intake filter
Type 8692, 8693 REV.2
Structure and function
6.2
6.2.1
8692.
The grey part of the diagram indicates the additional function of the superimposed process control circuit in
Type 8693.
Process actual value
Process setpoint value
External position setpoint value
Process controller
Set-point position
Positioner
Type 8692,
8693
Actual position
Position sensor
Control system
1
2
Control system
1: Aeriation valve
2: Bleed valve
Compressed air supply
Exhaust air
Pneumatic actuator
(single-acting)
Valve
(actuator)
Figure 3: Function diagram
Sensor
Process actual value
(flow, pressure, level, temperature, etc.) english
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Type 8692, 8693 REV.2
The position controller Type 8692
The position sensor records the current position ( POS ) of the pneumatic actuator. The position controller compares this position actual value with the set-point value ( CMD ) which is specified as a standard signal. In case of a control difference (Xd1), a pulse-width modulated voltage signal is sent to the actuating system as an actuating variable. If there is a positive control difference in single-acting actuators, the aeration valve is controlled via output B1. If the control difference is negative, the bleed valve is controlled via output E1. In this way the position of the actuator is changed until control difference is 0. Z1 represents a disturbance variable.
Position setpoint value
CMD
+ -
Xd1
Positioner
Z1
B1
E1
P
K
Control system
Solenoid valves
Continuous valve
Valve opening
POS
Position control circuit
Positioner sensor
Figure 4: Position control circuit in Type 8692
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Type 8692, 8693 REV.2
The position controller Type 8692
7.1
Figure 5: Schematic representation of position control english
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Type 8692, 8693 REV.2
The position controller Type 8692
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7.2
Configurable auxiliary function
Correction line to adjust the operating characteristic
CHARACT
Sealing function
CUTOFF
Effective direction of the controller set-point value
DIR.CMD
Effective direction of the actuating drive
DIR.ACT
Signal split range
SPLTRNG
Stroke limit
X.LIMIT
Limit of the control speed
X.TIME
Insensitivity range
X.CONTROL
Code protection
SECURITY
Safety position
SAFEPOS
Signal level fault detection
SIG.ERROR
Digital input
BINARY. IN
Analog feedback (option)
OUTPUT
2 digital outputs (option)
OUTPUT
User calibration
CAL.USER
Factory settings
SET.FACTORY
SERVICE.BUES
Effect
Selection of the transfer characteristic between input signal and stroke (correction characteristic).
Valve closes tight outside the control range. Specification of the value (as %), from which the actuator is completely deaerated (when 0%) or aerated (when
100%).
Effective direction between input signal and set-point position.
Adjustment of the effective direction between aeration state of the actuator and the actual position.
Splitting of the standard signal range to two or more position controllers.
Mechanical valve piston movement only within a defined stroke range.
Input of the opening and closing time for the total stroke.
The position controller is initially actuated from a control difference to be defined.
Code protection for settings.
Definition of the safety position.
Check the input signals for sensor break.
Warning output on the display and approaching the safety position (if selected).
Switching between AUTOMATIC / MANUAL or approaching the safety position.
Feedback set-point value or actual value.
Output of two selectable digital values.
Change to the factory calibration of the signal input.
Reset to factory settings.
Configuring the büS service interface english
Type 8692, 8693 REV.2
The position controller Type 8692
Configurable auxiliary function
Setting display
EXTRAS
SERVICE
Simulation software
SIMULATION
DIAGNOSE (option)
Table 2:
Effect
Adjustment of the display of the process level.
For internal use only.
For simulation of the device functions.
Monitoring of processes.
Position controller software. Configurable auxiliary functions
Hierarchical operating concept for easy operation on the following operating levels
Process level
Setting level
Table 3:
On the process level you switch between the
AUTOMATIC and MANUAL operating states.
On the setting level specify certain basic functions during start-up and configure auxiliary functions if required.
The position controller software. Hierarchical operating concept english
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Type 8692, 8693 REV.2
Process controller Type 8693
controller in the main control circuit of Type 8693 has a PID function.
The process set-point value ( SP ) is specified as set-point value and compared with the actual value( PV ) of the process variable to be controlled.
The position sensor records the current position ( POS ) of the pneumatic actuator. The position controller compares this position actual value with the set-point value ( CMD ) which is specified by the process controller.
In case of a control difference (Xd1), a pulse-width modulated voltage signal is sent to the actuating system as an actuating variable.
If there is a positive control difference in single-acting actuators, the aeration valve is controlled via output B1.
If the control difference is negative, the bleed valve is controlled via output E1. In this way the position of the actuator is changed until control difference is 0. Z2 represents a disturbance variable.
CMD Xd1
+ -
Z1
B1
E1
P
K
Positioner Control system
Solenoid valves
Continuous valve
POS
Valve opening
Position sensor
Position control circuit
Z2
SP Xd2
+
-
Process setpoint value
Process controller
CMD Position control circuit
Valve opening
Process
Process variable
PV
Transmitter
Figure 6: Signal flow plan of process controller english
Type 8692, 8693 REV.2
Process controller Type 8693
8.1
Figure 7: Schematic representation of process control english
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Type 8692, 8693 REV.2
Process controller Type 8693
26
8.2
Configurable auxiliary function
Correction line to adjust the operating characteristic
CHARACT
Sealing function
CUTOFF
Effective direction of the controller set-point value
DIR.CMD
Effective direction of the actuating drive
DIR.ACT
Signal split range
SPLTRNG
Stroke limit
X.LIMIT
Limit of the control speed
X.TIME
Insensitivity range
X.CONTROL
Code protection
SECURITY
Safety position
SAFEPOS
Signal level fault detection
SIG.ERROR
Digital input
BINARY. IN
Analog feedback (option)
OUTPUT
2 digital outputs (option)
OUTPUT
User calibration
CAL.USER
Factory settings
SET.FACTORY
SERVICE.BUES
Effect
Selection of the transfer characteristic between input signal and stroke (correction characteristic).
Valve closes tight outside the control range. Specification of the value (as %), from which the actuator is completely deaerated (when 0%) or aerated (when
100%).
Effective direction between input signal and set-point position.
Adjustment of the effective direction between aeration state of the actuator and the actual position.
Splitting of the standard signal range to two or more position controllers.
Mechanical valve piston movement only within a defined stroke range.
Input of the opening and closing time for the total stroke.
The position controller is initially actuated from a control difference to be defined.
Code protection for settings.
Definition of the safety position.
Check the input signals for sensor break.
Warning output on the display and approaching the safety position (if selected).
Switching between AUTOMATIC / MANUAL or approaching the safety position.
Feedback set-point value or actual value.
Output of two selectable digital values.
Change to the factory calibration of the signal input.
Reset to factory settings.
Configuring the büS service interface english
Type 8692, 8693 REV.2
Process controller Type 8693
Configurable auxiliary function
Setting display
EXTRAS
SERVICE
Simulation software
SIMULATION
DIAGNOSE (option)
Table 4:
Effect
Adjustment of the display of the process level.
For internal use only.
For simulation of the device functions.
Monitoring of processes.
Position controller software. Configurable auxiliary functions
Functions and setting options of the process controller
Process controller
P.CONTROL
Adjustable parameters
P.CONTROL - PARAMETER
PID process controller is activated.
Parameterization of the process controller
Amplification factor, reset time, hold-back time and operating point.
Configuration of the process controller Scalable inputs
P.CONTROL - SETUP
Automatic sensor detection or manual sensor setting
P.CONTROL -SETUP - PV INPUT
Selection of the set-point value default
P.CONTROL - SETUP - SP INPUT
Process characteristic linearization
P.Q‘LIN
Process controller optimization
P.TUNE
Table 5:
- Selection of the sensor input
- Scaling of process actual value and process setpoint value
- Selection of the set-point value defaults.
Sensor types Pt 100 and 4...20 mA are automatically detected or can be manually set via the operating menu.
Set-point value default either via standard signal input or via keys.
Function for the automatic linearization of the process characteristics.
Function for automatic optimization of the process controller parameters.
The process controller software. Functions and setting options of the process controller
Hierarchical operating concept for easy operation on the following operating levels
Process level
Setting level
Table 6:
On the process level you switch between the
AUTOMATIC and MANUAL operating states.
On the setting level specify certain basic functions during start-up and configure auxiliary functions if required.
The process controller software. Hierarchical operating concept
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Type 8692, 8693 REV.2
Interfaces
Inputs for position or process set-point value
4...20 mA
0...20 mA
0...10 V
0...5 V
Input for process actual value *
4...20 mA
Frequency
Pt 100
Digital input
Position controller / process controller
24 V DC
Operation
2 digital outputs
24 V PNP
Analog feedback
4...20 mA
0...10 V
Note:
Optional inputs and outputs are represented as a broken line
*
Figure 8:
Only for process controller Type 8693
Interfaces of the position controller / process controller
Types 8692 and 8693 are 3-wire devices, i.e. the power (24 V DC) is supplied separately from the set-point value signal.
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Type 8692, 8693 REV.2
Technical data
10.1
Type 8692, 8693 complies with the EU directives according to the EU Declaration of Conformity (if applicable).
10.2
The applied standards, which are used to demonstrate conformity with the EU Directives, are listed in the
EU type examination certificate and/or the EU Declaration of Conformity (if applicable).
10.3
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 the potentially explosive atmosphere. See supplementary
ATEX instructions.
10.4
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.
▶ The permitted ambient temperature may not exceed the maximum value or drop below the minimum value.
Ambient temperature Temperature range see type label
Degree of protection
assessed by the manufacturer IP65/IP67 according to EN 60529 * assessed by UL UL Type 4x Rating *
Operating altitude up to 2000 m above sea level
* Only for correctly connected cable or plug and sockets and in compliance with the exhaust air concept (see chapter
„11.6 Pneumatic connection of the Type 8692, 8693“ auf Seite 44
.
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Type 8692, 8693 REV.2
Technical data
10.5
Description of the type label:
Example:
Type, features of the type key applicable to UL and ATEX
Control function, pilot valve
W15 MA
Pilot valve supply voltage
Maximum operating pressure
Ambient temperature, hardware version
Serial number, CE marking
Order number, code of manufacture
Bar code
Figure 9: Type label (example)
10.5.1
Example:
Degree of protection
Circuit with limited power
Device supply voltage
Type 4X enclosure
NEC Class 2 only
Supply voltage: 24V
30
Figure 10: UL additional plate (example)
10.6
Dimensions see data sheet
Housing material outside: PPS, PC, VA, interior: PA 6; ABS
Sealing material NBR/EPDM
Stroke range valve spindle 3...45 mm
10.7
Control medium neutral gases, air
Quality classes as per ISO 8573-1
Dust content Quality class 7, max. particle size 40 µm, max. particle density 10 mg/m³
Water content Quality class 3, max. pressure dew point -20 °C (-4 °F) or min. 10°C (50 °F) below the lowest operating temperature
Oil content Quality class X, max. 25 mg/m³
Temperature range control medium 0...+50 °C (32...122 °F) english
Type 8692, 8693 REV.2
Technical data
Pressure range control medium 3...7 bar
Air flow rate pilot valve 7 l
(Q
N
Nn
/min (for aeration and deaeration)
- value according to definition for pressure drop from 7 to 6 bar absolute)
optional: 130 l connections)
N
/min (for aeration and deaeration) (only single-acting
Connections Plug-in hose connector ø6 mm / 1/4“ socket connection G1/8
10.8
WARNING!
For UL approved components, only circuits of a limited power according to “NEC Class 2” may be used.
Protection class III according to DIN EN 61140 (VDE 0140-1)
Connections Cable gland M16 x 1.5, size 22 (clamping area 5...10 mm) with connection terminals for cable cross-sections 0.14...1.5 mm² (24 V DC) or circular plug-in connectors (M12 x 1) (24 V DC,
EtherNet/IP, PROFINET I/O, Modbus TCP)
Operating voltage 24 V DC ± 10 %, max. residual ripple 10 %
Power consumption < 5 W
Input data for actual value signal
4...20 mA: Input resistance
Resolution
70 Ω
12 bit
Frequency: Measurement range 0...1000 Hz
Input resistance
Resolution
Input signal
Waveform
20 kΩ
1‰ of measurement value
> 300 mVss
Sine wave, square wave, triangle wave
Pt 100: Measurement range -20 to +220 °C (-4 to +428 °F)
Resolution < 0.1 °C
Measurement current < 1 mA
Input data for set-point value signal
0/4...20 mA: Input resistance
Resolution
70 Ω
12 bit
0...5/10 V: Input resistance
Resolution
22 k Ω
12 bit (only 11 bit for 0...5 V)
Analogue feedback
max. current 10 mA (for voltage output 0...5/10 V)
Load 0...560 Ω (for current output 0/4...20 mA)
Digital outputs galvanically isolated, PNP
current limitation 100 mA, output is clocked if overload occurs
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Type 8692, 8693 REV.2
Technical data
Digital input PNP
0...5 V = logical “0”, 10...30 V = logical “1” inverted input reversed accordingly (input current < 6 mA)
Communications interface Connection to PC with USB büS interface set
Communications software Bürkert Communicator
10.9
Actuator system Designation
Safety end positions after failure of the electrical auxiliary power pneumatic auxiliary power control system for high air flow rate (DN2.5): down up down single-acting
Control function
A down control system for low air flow rate (DN0.6): not defined up down single-acting control function
B up control system for high air flow rate (DN2.5): up control system for low air flow rate (DN0.6): not defined upper chamber lower chamber up down double-acting
Control function
I down/up
(depending on the installation of the pneumatic connection) not defined
Table 7: Safety end position english
Type 8692, 8693 REV.2
Installation
Only for position controllers and process controllers without pre-assembled process valve.
11.1
When installing devices in the potenially explosive atmosphere, observe the “ATEX manual for use in the Ex area” enclosed with the Ex-devices.
DANGER
Risk of injury from high pressure in the system/device.
▶ Before working on the system or device, switch off the pressure and vent/drain lines.
Risk of injury due to electrical shock.
▶ Before reaching into the device or the equipment, 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 assembly.
▶ Assembly may be carried out by authorized technicians only and with the appropriate tools.
Risk of injury from unintentional activation of the system and uncontrolled restart.
▶ Secure system against unintentional activation.
▶ Following assembly, ensure a controlled restart.
11.2
NOTE!
When installing on process valves with welded connections, follow the installation instructions in the operating instructions of the process valve.
Procedure:
1. Attaching the switch spindle
2. Installing the form seal
1. Installing Type 8692, 8693
Not required for actuators with attached control or for actuators on which a control has already been attached.
33 english
Type 8692, 8693 REV.2
Installation
11.2.1
DANGER
Risk of injury from high pressure in the system/device.
▶ Before loosening the lines and valves, turn off the pressure and vent the lines.
Transparent cap
Pilot air ports (plug-in hose connectors with collets or threaded bushings)
Actuator
Figure 11: Installing the switch spindle for process valves Types 2103, 2300 and 2301; remove transparent cap and pilot air ports
→ Unscrew the transparent cap on the actuator and unscrew the position display (yellow cap) on the spindle extension (if present).
→ For variant with plug-in hose connector, remove the collets (white nozzles) from both pilot air ports (if present).
Puck
Switch spindle
Guide element
Lip seal max. 1 Nm max. 5 Nm
Actuator cover
O-ring
Spindle extension
34
Figure 12: Attaching the switch spindle for process valves Types 2103, 2300 and 2301 english
Type 8692, 8693 REV.2
Installation
NOTE
Improper installation may damage the lip seal in the guide element.
The lip seal is already be pre-assembled in the guide element and must be “locked into position” in the undercut.
▶ When installing the switch spindle, do not damage the lip seal.
→ Push the switch spindle through the guide element.
NOTE
Screw locking paint may contaminate the lip seal.
▶ Do not apply any screw locking paint to the switch spindle.
→ To secure the switch spindle, apply some screw locking paint (Loctite 290) in the tapped bore of the spindle extension in the actuator.
→ Check that the O-ring is correctly positioned.
→ Screw the guide element to the actuator cover (maximum tightening torque: 5 Nm).
→ Screw switch spindle onto the spindle extension. To do this, there is a slot on the upper side (maximum tihgtening torque: 1 Nm).
→ Push puck onto the switch spindle and lock into position.
11.2.2
→ Pull the form seal onto the actuator cover (smaller diameter points upwards).
→ Check that the O-rings are correctly positioned in the pilot air ports.
When the Type 8692/8693 is being installed, the collets of the pilot air ports must not be fitted to the actuator.
Form seal
Pilot air port
Caution: collets must not be fitted.
Figure 13: Installing the form seal for process valves Types 2103, 2300 and 2301
Installation of the form seal english
35
Type 8692, 8693 REV.2
Installation
11.2.3
Housing jacket
Electrical connection housing
Types 8692, 8693
Actuator
Process valve
(example: Type 2103)
Valve body
Figure 14: Installation of Type 8692/8693 on process valves, example showing Type 2301
During the installation, the collets of the pilot air ports must not be fitted to the actuator.
→ Aligning actuator with type 8692/8693:
Fastening screws max. 1.5 Nm
(1.1 Ibf ft)
Connection piece
Pilot air ports
Figure 15: Aligning the pilot air ports
2. Align the puck of the actuator with the guide rail of Type 8692/8693 (see Figure 16)
Guide rail
36
Figure 16: Aligning the puck english
Puck
Type 8692, 8693 REV.2
Installation
NOTE
Damage to the PCB or malfunction.
▶ Ensure that the puck lies flat on the guide rail.
→ Push Type 8692/8693 without turning it onto the actuator until no gap is visible on the form seal.
NOTE
To comply with the degree of protection IP65/IP67, do not fasten the fastening screws too tightly.
▶ Maximum tightening torque: 1.5 Nm.
→ Attach Type 8692/8693 to the actuator using the two side fastening screws. In doing so, tighten the screws only hand-tight (max. tightening torque: 1.5 Nm (1.1 Ibf ft)) .
english
37
Type 8692, 8693 REV.2
Installation
11.3
Procedure:
1. Attaching the switch spindle
Not required for actuators with attached control or for actuators on which a control has already been attached.
2. Installing Type 8692, 8693
11.3.1
Guide element
Spindle extension
Actuator
Figure 17: Installing the switch spindle for process valves belonging to series 26xx and 27xx; remove guide element and intermediate ring.
→ Unscrew the guide element from the actuator (if present).
→ Remove intermediate ring (if present).
Puck
Switch spindle
Guide element
Spindle extension
O-ring
38
Spindle
(actuator)
Figure 18: Installing the switch spindle for process valves belonging to series 26xx and 27xx
→ Press the O-ring downwards into the cover of the actuator.
english
Type 8692, 8693 REV.2
Installation
→ Actuator size 125 and bigger with large air flow rate: remove existing spindle extension and replace with the new one. To do this, apply some screw locking paint (Loctite 290) in the tapped bore of the spindle extension.
→ With a face pin wrench (journal Ø: 3 mm / journal gap: 23.5 mm)
Screw the guide element into the cover of the actuator (tightening torque: 8.0 Nm).
→ To secure the switch spindle, apply some screw locking paint (Loctite 290) to the thread of the switch spindle.
→ Screw the switch spindle onto the spindle extension (maximum tightening torque: 1 Nm (0.74 Ibf ft)).
To do this, there is a slot on the upper side.
→ Push the puck holder onto the switch spindle until it engages.
11.3.2
→ Place Type 8692/8693 onto the actuator. In doing so, align the puck of the actuator with the guide rail of
Type 8692/8693 (see Figure 19).
Guide rail
Puck
Figure 19: Aligning the puck
NOTE
Damage to the PCB or malfunction.
▶ Ensure that the puck lies flat on the guide rail.
→ Press Type 8692/8693 all the way down as far as the actuator and turn it into the required position.
Ensure that the pneumatic connections of Type 8692, 8693 and those of the valve actuator are sit-
uated preferably vertically one above the other (see Figure 20).
NOTE
To comply with the degree of protection IP65/IP67, do not fasten the fastening screws too tightly.
▶ Maximum tightening torque: 1.5 Nm (1.1 Ibf ft).
→ Attach Type 8692/8693 to the actuator using the two side fastening screws. In doing so, tighten the screws
only hand-tight (max. tightening torque: 1.5 Nm (1.1 Ibf ft)) (see Figure 20).
39 english
40
Type 8692, 8693 REV.2
Installation
Pilot air outlet 2
1
Pilot air outlet 2
2
Fastening screws max. 1,5 Nm
Upper pilot air port
Lower pilot air port
Type
8692/
8693
Actuator
Figure 20: Installation of Type 8692/8693 on process valves belonging to series 26xx and 27xx
Establish the pneumatic connection between Type 8692/8693 and the actuator:
→ Screw the plug-in hose connectors onto the Type 8692/8693 and the actuator.
→
Observe the pneumatic connection that matches the desired control function. See Table 8.
→ Using the hoses supplied in the accessory kit, make the pneumatic connection between Type 8693/8693 and the actuator.
NOTE
Damage or malfunction due to ingress of dirt and moisture.
▶ To comply with the degree of protection IP65/IP67, connect the pilot air outlet 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 Type 8692, 8693 are isolated or not actuated.
If the ambient air is humid, a hose can be connected between pilot air outlet 22 of the positioner / process controller 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 Type
8692/8693.
english
Type 8692, 8693 REV.2
Installation
A
Control function
Process valve closed in rest position (by spring force)
B
Process valve open in rest position (by spring force)
Process valve closed in rest position
2
1
I
Process valve open in rest position
Table 8:
2
2
Pneumatic connection to actuator
2
2
2
1
2
1
2
2
Pneumatic connection Type 8692, 8693 with actuator
Pilot air outlet.
Types 8692 and 8693
Pilot air port actuator
2
1 lower pilot air port of the actuator
2
2 should be connected to the upper pilot air port of the actuator upper pilot air port of the actuator should be connected to the lower pilot air port of the actuator lower pilot air port of the actuator upper pilot air port of the actuator upper pilot air port of the actuator lower pilot air port of the actuator
11.4
Type 8692, 8693 with attached actuator is designated as the actuator module.
Following installation of the process valve, if the display of Type 8692, 8693 is only partially visible or the connection cables or hoses are difficult to fit, the actuator module can be rotated into a suitable position.
With diaphragm valves it is not possible to turn the actuator module.
Process valves Types 2300 and 2301: Only the position of the entire actuator module relative to the valve body can be rotated. Type 8692/8693 cannot be rotated contrary to the actuator.
The process valve must be in the open position to turn the actuator module.
DANGER
Risk of injury from high pressure in the system/device.
▶ Before loosening the lines and valves, turn off the pressure and vent the lines.
Procedure:
→ Clamp valve body in a holding device (only required if the process valve has not yet been installed).
→ Control function A: Open process valve.
41 english
Type 8692, 8693 REV.2
Installation
Actuator module
Key contour
Nipple
Hexagon
Nipple
Process valve Types 2300 and 2301 Process valves belonging to series 27xx
Figure 21: Rotating the actuator module
→ Using a suitable open-end wrench, counter the wrench flat on the pipe.
→ Process valves Types 2300 and 2301:
Fit special key exactly in the key contour on the underside of the actuator.
(The special key is available from the Bürkert sales office. Order number 665702).
→ Process valves belonging to series 27xx:
Place suitable open-end wrench on the hexagon of the actuator.
WARNING
Risk of injury from discharge of medium and pressure.
If the direction of rotation is wrong, the body interface may become detached.
▶
The actuator module must only be turned in the specified direction (see Figure 22)!
→ Process valves Types 2300 and 2301:
Rotate clockwise (as seen from below) to bring the actuator module into the required position.
→ Process valves belonging to series 27xx:
Rotate counter-clockwise (as seen from below) to bring the actuator module into the required position.
Open-end wrench Special key
42
Process valves belonging to series 27xx Process valve Types 2300 and 2301
Figure 22: Specified direction of rotation and tool for turning the actuator module english
Type 8692, 8693 REV.2
Installation
11.5
If the connecting cables or hoses cannot be fitted properly following installation of the process valve, the
Type 8692/8693 can be rotated contrary to the actuator.
Type 8692/ 8693
Fastening screw (2x) maximum tightening torque: 1.5 Nm
Pneumatic connection
Actuator
Figure 23: Rotating the Type 8692/8693 for process valves belonging to series 26xx and 27xx
Procedure:
→ Loosen the pneumatic connection between the Type 8692/8693 and the actuator.
→ Loosen the fastening screws (hexagon socket wrench size 3.0).
→ Rotate the Type 8692/8693 into the required position.
NOTE
To comply with the degree of protection IP65/IP67, do not fasten the fastening screws too tightly.
▶ Maximum tightening torque: 1.5 Nm.
→ Tighten the fastening screws hand-tight only (maximum tightening torque: 1.5 Nm).
→ Re-attach the pneumatic connections between the Type 8692/8693 and the actuator. If required, use longer hoses.
43 english
Type 8692, 8693 REV.2
Installation
11.6
DANGER
Risk of injury from high pressure in the system/device.
▶ Before working on the system or device, switch off the pressure and vent/drain lines.
Observe the following for the proper functioning of the device:
▶ The installation must not cause back pressure to build up.
▶ To make the connection, select a hose with sufficient cross section.
▶ Design the exhaust air line in such a way that no water or other liquid can get into the device through the exhaust air port (3 or 3.1).
Exhaust air concept:
▶ In compliance with the degree of protection IP67, an exhaust air line must be installed in the dry area.
▶ Always maintain an applied control pressure of at least 0.5...1 bar above the pressure which is required to move the pneumatic actuator to its end position.
This ensures that the control behavior is not negatively affected in the upper stroke range on account of too little pressure difference.
▶ During operation, keep the fluctuations of the control pressure as low as possible (max. ±10 %).
If fluctuations are greater, the control parameters measured with the X.TUNE
function are not optimum.
Exhaust air port
Label: 3
44
Pilot air port
Label: 1
Additional exhaust air port
Label: 3.1
(only for Types 23xx and 2103 with pilot-controlled control system for a high air flow rate from actuator size ø 125 / 130)
Figure 24: Pneumatic connection
Procedure:
→ Connect the control medium to the pilot air port (1)
(3...7 bar; instrument air, free of oil, water and dust).
→ Mount the exhaust air line or a silencer on the exhaust air port (3) and, if present, on the exhaust air port
(3.1).
english
Type 8692, 8693 REV.2
Installation
11.7
In the variant with high air rate, the actuator can be moved to its end position without electrical power. The actuator moves from its rest position to the end position. To do this, the pilot valves must be activated with a screwdriver.
11.7.1
The actuator can be moved from the rest position to its end position and back without electrical power. To do this, the pilot valves must be activated with a screwdriver.
NOTE
The hand lever can be damaged if it is pressed and turned at the same time.
▶ Do not press the hand lever while turning it.
Pilot valve not activated
(normal position)
Hand lever pointing to the left
Pilot valve for deaeration
Pilot valve for aeration
Pilot valve activated
Hand lever pointing to the right
Figure 25: Pilot valves for aeration and deaeration of the actuator
Move the actuator to the end position
Turn the hand lever to the right with a screwdriver.
Please note: - Do not press the lever while turning it
- Follow the order described below
→ 1. Activate the hand lever of the pilot valves for deaeration.
→ 2. Activate the hand lever of the pilot valves for aeration.
Both hand levers are pointing to the right.
The actuator moves to the end position.
Figure 26: Move the actuator to the end position
2.
1.
45 english
Type 8692, 8693 REV.2
Installation
Move the actuator back to the rest position
Turn the hand lever to the left with a screwdriver.
Please note: - Do not press the lever while turning it
- Follow the order described below
→ 1. Activate the hand lever of the pilot valves for aeration.
→ 2. Activate the hand lever of the pilot valves for deaeration.
Both hand levers are pointing to the left (normal position).
The actuator moves to the rest position by spring force.
Figure 27: Move the actuator back to the rest position
1.
2.
46 english
Type 8692, 8693 REV.2
Electrical installation 24 V DC
There are 2 connection variants for Type 8692, 8693:
• Multi-pole with circular plug-in connector
• Cable gland with connection terminals
Signal values
Operating voltage: 24 V DC
Set-point value
(process/position controller): 0...20 mA; 4...20 mA
0...5 V; 0...10 V
Actual value
(only process controller): 4...20 mA; frequency;
Pt 100
12.1
DANGER
Risk of injury due to electric shock.
▶ Before reaching into the system, switch off the power supply and secure to prevent reactivation.
▶ Observe the applicable accident prevention regulations 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 uncontrolled restart.
▶ Secure system against unintentional activation.
▶ Following installation, ensure a controlled restart.
Using the 4...20 mA set-point value input
If several devices of Type 8692, 8693 are connected in series and the power supply to a device in this series connection fails, the input of the failed device becomes highly resistive.
As a result, the 4...20 mA standard signal fails.
In this case please contact Bürkert Service directly.
In the case of Ethernet or büS:
The designation of the circular plug-in connectors and contacts can be found in the respective chapters.
47 english
48
Type 8692, 8693 REV.2
Electrical installation 24 V DC
Procedure:
→ Connect Type 8692, 8693 according to the tables.
When the operating voltage is applied, Type 8692, 8693 is operating.
→ Now make the required basic settings and adjustments for the position controller/process controller.
The procedure is described in chapter „14 Start-up“ auf Seite 72.
Designation of the circular plug-in connectors:
4
3
3
5
4
3
6
2
1
7
8
X1 - M12 circular connector, 8-pin input signals for the control center
Output signals from the control center (optional)
1
X5 - M8 circular connector, 4-pin (Type 8693 only)
Input signals process actual value
2
2
1
X6 - M12 circular connector, 4-pin
Operating voltage
4
Switch
(to operate loosen the screw connection)
Figure 28: Electrical connection with 24 V DC circular plug-in connector
12.1.1
Pin Wire color* Assignment
Input signals from the control center (e.g. PLC)
1 white Digital input +
7 blue
8 red
Set-point value GND
Set-point value + (0/4...20 mA or 0...5/10 V) galvanically isolated for the operating voltage
0...5 V (logical 0)
10...30 V (logical 1) english
Type 8692, 8693 REV.2
Electrical installation 24 V DC
Pin Wire color* Assignment
Output signals to the control center
(e.g. PLC) – (required for analog output and/or digital output option only)
2 brown Digital outputs GND
3 green Digital output 2 (24 V / 0 V)
4
5
6 yellow gray pink
Digital output 1 (24 V / 0 V)
Analog position feedback
GND
Analog position feedback + (0/4...20 mA or 0...5/10 V) galvanically isolated for the operating voltage
* The indicated wire colors refer to the connection cable, part no. 919061, available as an accessory.
Table 9: X1 - M12 circular connector, 8-pin
12.1.2
Pin Wire color* Assignment On the device side
1
External circuit / signal level
1 brown
2
+24 V
Not used
3 blue
4
GND
Not used
3
24 V DC ± 10 % max. residual ripple 10 %
* The indicated wire colors refer to the connection cable, part no. 918038, available as an accessory.
Table 10: X6 - M12 circular connector, 4-pin, operating voltage english
49
50
Type 8692, 8693 REV.2
Electrical installation 24 V DC
12.1.3
Input type*
4...20 mA supplied
- internally
Pin Assignment
1 +24 V transmitter power supply
2 Output from transmitter
3 GND (identical to GND operating voltage)
4...20 mA
- externally supplied
Frequency
- internally supplied
4 Bridge after GND (GND from
3-conductor transmitter)
1 Not used
2 Process actual +
3 Not used
4 Process actual -
1 +24 V sensor power supply
2 Clock input +
3 Clock input – (GND)
Switch **
Switch on left
Switch on right
On the device side External circuit
1
2
3
4
2
I
Transmitter
GND
4...20 mA
Switch on left
4
1
2
3
GND 4...20 mA
+24 V
Clock +
Clock – / GND
(identical to GND operating voltage)
Frequency
- externally supplied
4 Not used
1 Not used
2 Clock input +
3 Clock input –
4 Not used
Switch on right
2
3
Clock +
Clock –
Pt 100
(see information below)
1 Not used
2 Process actual 1 (power supply)
3 Process actual 3 (GND)
2
Pt 100
4 Process actual 2
(compensation)
Switch on right 3
4
Table 11: X5 - M8 circular connector, 4-pin, input signals process actual value (for Type 8693 only)
For reasons of wire resistance compensation, connect the Pt 100 sensor via 3 wires.
Bridge pin 3 and pin 4 on the sensor.
english
Type 8692, 8693 REV.2
Electrical installation 24 V DC
12.1.4
Supplied Assignment Slide switch position
Internally supplied GND operating voltage Slide switch on left
Externally supplied GND is galvanically isolated from the operating voltage.
Slide switch on right
Table 12: Slide switch position
The description EtherNet/IP, PROFINET and Modbus TCP can be found in chapter
The description option büS can be found in chapter 20.
When the operating voltage is applied, Type 8692, 8693 is operating.
→ Now make the required basic settings and adjustments for the position controller and process controller.
The procedure is described in chapter „14 Start-up“.
12.1.5
NOTE
Do not damage the pins on the printed circuit board.
▶ Position the electronics module straight and do not tilt when pressing down.
→ Carefully attach electronics module and press down evenly until the holders snap into place.
→ Check that the seal is correctly positioned on the housing jacket.
Seal housing jacket
Figure 29: Position seal housing jacket
NOTE
Breakage of the pneumatic connection pieces due to rotational impact.
▶ When inserting the housing jacket, above.
do not hold the actuator but the electrical connection housing
→ Place the housing jacket over the electronics module and screw it in all the way; while doing so, hold the electrical connection housing (screwdriver available via the Bürkert Sales Center. Order number 674077).
51 english
Type 8692, 8693 REV.2
Electrical installation 24 V DC
52
NOTE
Malfunction due to ingress of dirt and moisture.
▶ To comply with the degree of protection IP65/IP67, ensure that the housing jacket and the electrical connection housing are screwed together tightly.
→ Switch on operating voltage on the device.
→ Restart Type 8692, 8693.
12.2
DANGER
Risk of injury due to electric shock.
▶ Before reaching into the system, switch off the power supply and secure to prevent reactivation.
▶ Observe the applicable accident prevention regulations and safety regulations for electrical equipment.
WARNING
Risk of injury from improper installation.
▶ Installation may be carried out by authorized technicians only and using the appropriate tools.
Risk of injury from unintentional activation of the system and uncontrolled restart.
▶ Secure system against unintentional activation.
▶ Following installation, ensure a controlled restart.
Using the 4...20 mA set-point value input
If several devices of Type 8692, 8693 are connected in series and the power supply to a device in this series connection fails, the input of the failed device becomes highly resistive. As a result, the 4...20 mA standard signal fails. In this case please contact Bürkert Service directly.
Procedure:
→ Loosen the 4 screws of the connection cover and remove the cover. The connection terminals are now accessible.
→ Push the cables through the cable gland.
→ Connect the wires. The terminal assignment can be found in the tables below.
→ Tighten the union nut of the cable gland (tightening torque approx. 1.5 Nm (1.1 Ibf ft)).
→ Place the connection cover with inserted seal onto the electrical connection housing and tighten crosswise (tightening torque max. 0.7 Nm (0.5 Ibf ft)).
NOTE
Damage or malfunction due to ingress of dirt and moisture.
To comply with the degree of protection IP65/IP67:
▶ Close all unused cable glands with dummy plugs.
▶ Tighten the union nut on the cable gland.
Tightening torque depends on cable size or dummy plug approx. 1.5 Nm.
▶ Only screw on connection cover with the seal inserted. Tightening torque max. 0.7 Nm. english
Type 8692, 8693 REV.2
Electrical installation 24 V DC
Switch
1 2 3
9
4 5 6 7 8
10 11 12 13 14 15 16
Connection cover
Connection terminals
Figure 30: Cable gland connection
12.2.1
Terminal Assignment
6
7
8
13
14
Table 13:
Digital input +
Set-point value GND
Set-point value +
External circuit / signal level
+
0...5 V (logical 0)
10...30 V (logical 1)
GND set-point value
+ (0/4...20 mA or 0...5/10 V) galvanically isolated for the operating voltage
Not used
Digital input GND GND specific to operating voltage GND (terminal GND)
Terminal assignment; input signals of the control center
12.2.2
Terminal Assignment
1
2
3
4
5
Table 14:
Analog position feedback GND
External circuit / signal level
GND analog feedback
Analog position feedback +
Digital output GND
Digital output 2
Digital output 1
+ (0/4...20 mA or 0...5/10 V) galvanically isolated for the operating voltage
GND
24 V / 0 V, NC / NO specific to operating voltage GND (terminal GND)
24 V / 0 V, NC / NO specific to operating voltage GND (terminal GND)
Terminal assignment; output signals to the control center
53 english
Type 8692, 8693 REV.2
Electrical installation 24 V DC
54
12.2.3
Input type*
4...20 mA
- internally supplied
9
Terminal Assignment
10
11
GND (identical to GND operating voltage)
Output from transmitter
Bridge after GND (GND from
3-conductor transmitter)
Switch below
12
11
I
External circuit
Transmitter
12
4...20 mA
- externally supplied
9
10
11
12
+24 V transmitter power supply
Not used
Process actual -
Process actual +
Not used
10
9
11
10
GND
4...20 mA
GND
Switch above
Frequency
- internally supplied
9
10
11
12
Clock input – (GND)
Not used
Clock input +
+24 V sensor power supply
Switch below
12
11
9
+24 V
Clock +
Clock – / GND
(identical to GND operating voltage)
Frequency
- externally supplied
9
10
11
12
Clock input –
Not used
Clock input +
Not used
Switch above
11
9
Clock +
Clock –
Pt 100 ***
(see note)
9
10
11
12
Process actual 3 (GND)
Process actual 2
(compensation)
Process actual 1 (power supply)
Not used
Switch above
11
10
9
Pt 100
** The switch is situated under the connection cover (see „Figure 30: Cable gland connection“).
Table 15: Terminal assignment; process actual value input (for Type 8693 only)
*** For reasons of wire resistance compensation, connect the Pt 100 sensor via 3 wires.
Always bridge Terminal 3 and Terminal 4 on the sensor.
english
Type 8692, 8693 REV.2
Electrical installation 24 V DC
12.2.4
Terminal Assignment
15
16
Table 16:
Operating voltage GND
Operating voltage +24V
Terminal assignment; operating voltage
On the device side
External circuit / signal level
24 V DC ± 10 % max. residual ripple 10 %
When the operating voltage is applied, Type 8692, 8693 is operating.
→ Now make the required basic settings and adjustments for the position controller/process controller. For
a description see chapter „14 Start-up“.
12.2.5
Supplied Assignment Slide switch position
Internally supplied GND operating voltage Slide switch below
Externally supplied GND is galvanically iso lated from the operating voltage.
Slide switch above
Table 17: Slide switch position
The description EtherNet/IP, PROFINET and Modbus TCP can be found in chapter 19.
The description option büS can be found in chapter 20.
english
55
Type 8692, 8693 REV.2
Operation
WARNING
Danger due to improper operation.
Improper operation may result in injuries as well as damage to the device and its environment.
▶ The operating personnel must know and have understood the contents of the operating instructions.
▶ Observe the safety instructions and intended use.
▶ Only adequately trained personnel may operate the equipment/the device.
There are different operating levels for the operation and setting of type 8692, 8693.
• Process level:
The running process is displayed and operated on the process level.
Operating state: AUTOMATIC
MANUAL
– Displaying the process data
– Manually opening and closing the valve
• Setting level:
The basic settings for the process are made on the setting level.
– Inputting the operating parameters
– Activating auxiliary functions
If the device is in the AUTOMATIC operating state when changing to the setting level, the process continues running during the setting.
56 english
Type 8692, 8693 REV.2
Operation
13.1
The device features 4 keys for operation and a 128 x 64 dot matrix graphics display as a display element.
The display is adjusted to the set functions and operating levels.
In principle, a distinction can be made between the display view for the process level and the setting level.
When the operating voltage has been applied, the process level is displayed.
Operating elements:
Left selection key
Arrow key , up arrow
Figure 31: Operating elements
Right selection key
Arrow key , down arrow english
57
Type 8692, 8693 REV.2
Operation
Display elements of the setting level:
Menu designation
Submenu
Designation for the function of the keys
M A I N
INPUT
BUS.COMM
X.TUNE
ADD.FUNCTION
EXIT 7 ENTER
Figure 32: Display elements of the setting level
Display elements of the process level:
Symbol for position control
Symbol for process control
Symbol for the AUTOMATIC operating state
Other symbols are displayed according to the activated functions.
Abbreviated designation for the displayed process value
Unit of the displayed process value
Process value *
Designation for the function of the keys
58
* The process values which can be displayed in the AUTOMATIC operating state depend on type.
A detailed description of this can be found in chapter
„13.4.1 Possible displays of the process level“.
Figure 33: Display elements of the process level english
Type 8692, 8693 REV.2
Operation
13.1.1
The symbols which are displayed depend on
• Type,
• Operation as position or process controller,
• AUTOMATIC or MANUAL operating state and
• The activated functions.
Operation
Types 8692, 8693
Operation as position controller
Icon
Other symbols for
Type 8693
Operation as process controller
Table 18: Symbols of the process level
Description
AUTOMATIC operating state
Diagnostics active (optional; only available if the device has the additional software for the diagnostics)
X.CONTROL
/ Position controller active
(symbol is indicated for Type 8693 only)
CUTOFF active
SAFEPOS active
Interface I/O RS232 HART
SECURITY active
Bus active
SIMULATION active
P.CONTROL
/ process controller active english
59
Type 8692, 8693 REV.2
Operation
13.2
Status LED for indicating device status
60
Figure 34: Status LED for indicating device status
The status LED lights up according to NAMUR NE 107, in the color specified for the device status.
If several device statuses exist simultaneously, the device status with the highest priority is displayed. The priority is determined by the severity of the deviation from standard operation (red = failure = highest priority).
The status LED can be deactivated and activated in the Bürkert Communicator software.
Setting: General settings → Parameter → Status LED
Factory setting: LED activated
Displays :
Status display in accordance with NE 107, edition 2006-06-12
Color Color code
Description Meaning red 5 Failure, error or fault
Due to a malfunction in the device or on its periphery, controlled operation is not possible orange 4 yellow 3
Function check The device is being worked on; controlled operation is therefore temporarily not possible.
Out of specification
The ambient conditions or process conditions for the device are outside the specified area. blue 2 green 1
Maintenance required
Normal
Device internal diagnostics point to problems in the device or with the process properties.
The device is in controlled operation, however function is briefly restricted.
→ Maintain device.
Device is operating faultlessly. Status changes are shown in color.
Messages are transmitted via any connected fieldbus.
Table 19: Indication of the device status according to NAMUR NE 107 english
Type 8692, 8693 REV.2
Operation
13.3
The function of the 4 keys for operation differs depending on the operating state (AUTOMATIC or MANUAL) and operating level (process level or setting level).
The description of the operating levels and operating states can be found in chapter and
„13 Operation“ and„13.7 Operating states“ .
Key function on the process level:
Key Key function
Arrow key OPN
Arrow key left selection key
CLS
MENU right selection key
AUTO
MANU
Description of the function
Manual opening of the actuator.
Change the displayed value
(e.g. POS CMD TEMP -...).
Manual closing of the actuator.
Change the displayed value
(e.g. POS CMD TEMP -...).
Change to the setting level.
Note: Press key for approx. 3 s.
Return to AUTOMATIC operating state.
Change to MANUAL operating state.
Key function on the setting level:
Key
Arrow key
Key function
+
Arrow key left selection key
-
<-
EXIT right selection key
ESC
STOP
ENTER
SELEC
OK
INPUT
EXIT
RUN
STOP
Description of the function
Scroll up in the menus.
Increase numerical values.
Scroll down in the menus.
Decrease numerical values.
Change by one digit to the left; when entering numerical values.
Return to the process level.
Gradually return from a submenu option.
Leave a menu.
Stop a sequence.
Select, activate or deactivate a menu option.
Gradually return from a submenu option.
Start a sequence.
Stop a sequence.
Table 20: Function of the keys
Operating state
MANUAL
AUTOMATIC
MANUAL
AUTOMATIC
AUTOMATIC or
MANUAL
MANUAL
AUTOMATIC
61 english
Type 8692, 8693 REV.2
Operation
13.3.1
Changing numerical values with fixed decimal places:
Key
Arrow key
Arrow key
Key function
<-
+
Description of the function Example
Change to the next decimal place (from right to left).
After reaching the last decimal place, the display switches back to the first decimal place.
Increase value.
When the largest possible value has been reached,
0 is displayed again.
Return without change.
Enter date and time.
left selection key right selection key
ESC or
EXIT
OK Accept the set value.
Table 21: Change numerical values with fixed decimal places.
Enter numerical values with variable decimal places:
Key
Key function
+ Arrow key
Arrow key left selection key right selection key
-
ESC or
EXIT
OK
Description of the function
Increase value.
Reduce value.
Return without change.
Accept the set value.
Table 22: Enter numerical values with variable decimal places.
Example
Enter PWM signal
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Type 8692, 8693 REV.2
Operation
13.4
The display can be individually adjusted for the operation and monitoring of the process.
• To do this, menu options can be activated for displaying the process level. POS and CMD are activated in the as-delivered state.
• The menu options which can be displayed depend on the type.
How you can adjust the display for Type 8692 individually to the process to be controlled is
described in chapter „16.2.1 EXTRAS – Setting the display“ auf Seite 122.
13.4.1
→ / select possible displays in AUTOMATIC operating state.
0.0
Actual position of the valve actuator
(0 ....100 %)
MENU CMD/POS CMD MANU
0.0
MENU POS TEMP MANU
C
0.0
• Set-point position of the valve actuator or
• Set-point position of the valve actuator after rescaling by possibly activated split range function or correction characteristic
(0 ....100 %)
Internal temperature in the housing of the device (°C)
MENU CMD CMD/POS
m3/min
0.0
Process actual value
Only for type 8693
MENU TEMP SP MANU
m3/min
0.0
MENU PV PV (t) INPUT
Process set-point value
Right selection key :
The key function depends on the set-point value default
(menu: P.CONTROL
→ P.SETUP → SP-INPUT → internal/external).
INPUT Set-point value default = internal
MANU Set-point value default = external
Only for type 8693
Graphical display of SP and PV with time axis
Only for type 8693
MENU SP / PV (t) HOLD
63 english
64
Type 8692, 8693 REV.2
Operation
Graphical display of POS and CMD with time axis
MENU CMD / POS (t) HOLD
CLOCK 12:00 00
Thu. 01 . 09 . 11
MENU INPUT X.TUNE
INPUT
mA
4.0
MENU CMD/POS CLOCK
Time, weekday and date
Input signal for set-point position
(0...5/10 V or 0/4...20 mA)
Only for operation as position controller
Automatic adjustment of the position controller
MENU CLOCK CMD/POS RUN
Automatic optimization of the process controller parameters
Only for type 8693
MENU X.TUNE
P.LIN RUN
Automatic linearization of the process characteristics
Only for type 8693
MENU P.TUNE
CMD/POS RUN
Simultaneous display of the set-point position and the actual position of the valve actuator
(0...100 %)
MENU P.LIN SP/PV MANU
m3/min m3/min
0.0
0.0
Simultaneous display of the set-point position and the actual position of the valve actuator
(0...100 %)
Only for type 8693
MENU CMD/POS POS MANU
Table 23: Displays of the process level english
Type 8692, 8693 REV.2
Operation
13.5
Switch to the setting level as follows:
→ Select MENU and press for 3 seconds.
You are on the setting level.
Switch to the process level as follows:
→ Select EXIT .
You are on the process level.
The set MANUAL or AUTOMATIC operating state is retained even when the operating level is changed.
Change to the setting level Return to the process level
Left selection key
Press for 3 seconds
Figure 35: Switch operating level
Progress bar closes
Left selection key
Press
13.6
Date and time are set on the process level in the CLOCK menu.
To ensure that the menu for CLOCK can be selected on the process level, the following functions must be activated in two stages:
1. The EXTRAS auxiliary function in the ADD.FUNCTION
menu
2. The CLOCK function in the EXTRAS auxiliary function, DISP.ITEMS
submenu.
65 english
Type 8692, 8693 REV.2
Operation
Activate EXTRAS and CLOCK as follows:
→ Press MENU for 3 s. Switching from process level setting level.
→ / Select ADD.FUNCTION
.
→ Select ENTER . The possible auxiliary functions are displayed.
→ / Select EXTRAS .
→ Select ENTER .
Activate the EXTRAS auxiliary function by marking with a cross and transfer into the main menu
(MAIN).
→ Select EXIT . Return to the main menu (MAIN).
→ / Select EXTRAS .
→ Select ENTER . The submenus of EXTRAS are displayed.
→ / DISP. Select ITEMS .
→ Select ENTER . The possible menu options are displayed.
→ / Select CLOCK .
→
→
→
→
Select SELECT . The activated CLOCK function is now marked by a cross .
Select EXIT . Return to the EXTRAS menu.
Select EXIT . Return to the main menu (MAIN).
Select EXIT . Switching from setting level process level.
You have activated EXTRAS and CLOCK .
Date and time must be reset whenever the device is restarted.
After a restart the device therefore switches immediately and automatically to the corresponding menu.
66 english
Type 8692, 8693 REV.2
Operation
13.6.1
Activate the input screen as follows:
→ On the process level select the display for CLOCK using the arrow keys.
→ Press INPUT to open the input screen for the setting.
→ Set date and time as described in the following table.
You have activated the input screen.
Set the date and time as follows:
→ Select <- .
Switch to the next time unit (from right to left).
When the last time unit for the date has been reached, the display switches to the time units for the time.
If the last unit is at top left (hours), the display switches back to the first unit at bottom right (year).
→ Select + .
Increase value.
When the largest possible value has been reached, 0 is displayed again.
→
→
Select ESC . Return without change.
Select OK . Accept the set value.
→ / Select EXTRAS .
→ Select ENTER . The submenus of EXTRAS are displayed.
→ / Switching the display.
You have set date and time.
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Type 8692, 8693 REV.2
Operation
13.7
Type 8692, 8693 has 2 operating states: AUTOMATIC and MANUAL.
When the operating voltage is switched on, the device is in the AUTOMATIC operating state.
POS 0.0
AUTOMATIC In the AUTOMATIC operating state normal controlled operation is implemented.
(The symbol for AUTOMATIC is shown on the display.
A bar runs along the upper edge of the display).
MENU CMD POS MANU
POS 0.0
MANUAL In the MANUAL operating state the valve can be manually opened or closed using the arrow keys
(key function OPN and CLS ).
(The symbol for AUTOMATIC is hidden.
No bar running along the upper edge of the display).
MENU OPN CLS AUTO
The MANUAL operating state (key function MANU ) is for the following process value displays only:
POS, CMD, PV, CMD/POS, SP/PV.
For SP only for external process set-point value.
13.7.1
Switch to the MANUAL operating state as follows:
→ Select MANU .
You are in the MANUAL operating state.
Only available for process value display: POS, CMD, PV, SP
Switch to the AUTOMATIC operating state as follows:
→ Select AUTO .
You are in the AUTO operating state.
english
Type 8692, 8693 REV.2
Operation
13.8
Auxiliary functions can be activated for demanding control tasks.
The auxiliary functions are activated via the ADD.FUNCTION
basic function and transferred to the main menu (MAIN).
The auxiliary function can then be selected and set in the extended main menu (MAIN).
13.8.1
Activate the auxiliary functions as follows:
→ Press MENU for 3 s. Switching from process level setting level.
→ / Select ADD.FUNCTION
.
→ Select ENTER . The possible auxiliary functions are displayed.
→ / Select auxiliary function .
→ Select ENTER . The selected auxiliary function is now marked by a cross .
→ Select EXIT .
Acknowledgment and simultaneous return to the main menu (MAIN).
You have activated the marked function and included it in the main menu.
Set the parameters as follows:
→ / Select auxiliary function . In the main menu (MAIN) select the auxiliary function.
→ Select ENTER . Opening the submenu to input the parameters.
The setting of the submenu is described in the respective chapter of the auxiliary function.
You have set the parameters.
Return from the submenu and switch the process level as follows:
→ Select EXIT* or ESC* . Return to a higher level or to the main menu (MAIN).
→ Select EXIT . Switching from setting level process level.
You have changed the process level.
* The designation of the key depends on the selected auxiliary function.
english
69
Type 8692, 8693 REV.2
Operation
70
13.8.2
Deactivate the auxiliary functions as follows:
→ Press MENU for 3 s. Switching from process level setting level.
→ / Select ADD.FUNCTION
.
→ Select ENTER . The possible auxiliary functions are displayed.
→ / Select auxiliary function .
→ Select ENTER . Remove function mark (no cross ).
→ Select EXIT .
Acknowledgment and simultaneous return to the main menu (MAIN).
You have deactivated the marked function and removed it from the main menu.
Deactivation removes the auxiliary function from the main menu (MAIN). This will cause the previous settings, created under this function, to be rendered invalid.
13.9
In the MANUAL operating state, the valve can be opened and closed manually using the arrow keys.
The MANUAL operating state (key function MANU ) applies to the following process value displays:
• POS , actual position of the valve actuator.
• CMD , set-point position of the valve actuator.
When switching to MANUAL operating state POS is displayed.
• PV , process actual value.
• SP , process set-point value.
When switching to MANUAL operating state, PV is displayed. The switch is possible only for external set-point value default (menu: P.CONTROL → P.SETUP → S P-IN PUT → external).
• CMD/POS , set-point position of the valve actuator.
When switching to MANUAL operating state POS is displayed.
• SP/PV, process set-point value.
When switching to MANUAL operating state, PV is displayed. The switch is possible only for external set-point value default (menu: P.CONTROL → P.SETUP → SP-INPUT → external).
Manually open and close as follows:
→ / Select POS, CMD, PV or SP .
→ Select MANU . Change to MANUAL operating state.
→ Select . Aerating the actuator
Control function A (SFA):
Control function B (SFB):
Control function I (SFI):
Valve opens
Valve closes
Connection 2.1 aerated english
Type 8692, 8693 REV.2
Operation
→ Select . Deaerating the actuator
Control function A (CFA):
Control function B (CFB):
Control function I (CFI):
Valve closes
Valve opens
Connection 2.2 aerated
You have manually opened and closed the valve.
CFA: Actuator spring force closing
CFB: Actuator spring force opening
CFI: Actuator double-acting english
71
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Type 8692, 8693 REV.2
Start-up
Before start-up, carry out pneumatic, fluid and electrical installation of Type 8692, 8693 and of the
valve. For a description see chapters 11
When the operating voltage is applied, Type 8692, 8693 is operating and is in the AUTOMATIC operating state. The display shows the process level with the values for POS and CMD .
The following basic settings must be made for starting up the device:
Device type
Sequence Type of basic setting Setting via
8692 and
8693
1
Basic setting of the device:
Set input signal (standard signal).
INPUT
2 Adjust device to the local conditions.
X.TUNE
Description in chapter
Requirement essential only 8693
(Process controller)
3
4
5
6
7
Activate process controller.
Basic setting of the process controller:
– Setting the hardware
ADD.FUNCTION
P.CONTROL
→ SETUP
– Parameter setting of the software.
Automatic linearization of the process characteristics.
Automatic parameter setting for the process controller.
→ PID.
PARAMETER
P.Q‘LIN
P.TUNE
essential to be performed optionally
Table 24: Start-up sequence
The basic settings are made on the setting level.
To switch from the process level to the setting level, press the MENU key for approx. 3 seconds.
Then the main menu (MAIN) of the setting level is indicated on the display.
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 start up the equipment/the device.
english
Type 8692, 8693 REV.2
Start-up
14.1
The following settings must be made for the basic setting of Type 8692, 8693:
1.
INPUT
Selection of the input signal (see chapter 14.2).
2.
X.TUNE
Automatic self-parameterization of the position controller (see chapter 14.3).
14.2
This setting is used to select the input signal for the set-point value.
Set the input signal as follows:
→ Press MENU for 3 s. Switching from process level setting level.
→ / Select INPUT .
→ Select ENTER . The possible input signals for INPUT are displayed.
→ / Select input signal (4...20 mA, 0...20 mA, ...) .
→ Select SELECT . The selected input signal is now marked by a filled circle .
→ Select EXIT .
Return to the main menu (MAIN).
→ Select EXIT . Switching from setting level process level.
You have set the input signal.
14.3
WARNING
Danger due to the valve position changing when the X.TUNE
function is run.
When the X.TUNE
function is run under operating pressure, there is an acute risk of injury.
▶ Never run X.TUNE
while the process is running.
▶ Secure system against unintentional activation.
NOTE
An incorrect supply pressure or incorrectly connected operating medium pressure may cause the controller to be wrongly adjusted.
▶ Run X.TUNE
iary power).
in each case at the supply pressure available in subsequent operation (= pneumatic auxil -
▶ To exclude interference due to flow forces, run the medium pressure.
X.TUNE
function preferably without operating
73 english
Type 8692, 8693 REV.2
Start-up
74
The following functions are actuated automatically:
• Adjustment of the sensor signal to the (physical) stroke of the actuator used.
• Determination of parameters of the PWM signals to control the solenoid valves integrated in type 8692,
8693.
• Adjustment of the controller parameters for the position controller. Optimization occurs according to the criteria of the shortest possible transient time without overshoots.
Automatically adjust the position controller as follows:
→ Press MENU for 3 s. Switching from process level setting level.
→ / Select X.TUNE
.
→ Hold down RUN as long as countdown (5 ...) is running.
During the automatic adjustment messages are displayed indicating the progress of the X.TUNE
(e.g. “TUNE #1....” ).
When the automatic adjustment ends, the message “ X.TUNE READY ” is indicated.
→ Press any key. Return to the main menu (MAIN).
→ Select EXIT . Switching from setting level process level.
You have automatically adjusted the position controller.
To stop X.TUNE
, press the left or right selection key STOP .
Automatically determining dead band DBND by running X.TUNE
:
When X.TUNE
is running, the dead band can be automatically determined depending on the friction behavior of the actuating drive.
Before running X.TUNE
, the X.CONTROL
auxiliary function must be activated by incorporating it into the main menu (MAIN).
If X.CONTROL
is not activated, a fixed dead band of 1 % is used.
The changed data is saved in the memory (EEPROM) only when there is a switch to the process level, by leaving the main menu (MAIN) using the left selection key EXIT .
Possible fault messages when running X.TUNE:
Display
TUNE err/break
X.TUNE locked
Causes of fault
Manual termination of self-optimization by pressing the EXIT key.
The X.TUNE
function is blocked.
X.TUNE
ERROR 1
X.TUNE
ERROR 2
X.TUNE
ERROR 3
No compressed air connected.
Compressed air failure while running
X.TUNE
.
Actuator or control system deaeration side leaking.
Corrective action
Enter access code.
Connect compressed air.
Check compressed air supply.
Not possible, device defective.
english
Type 8692, 8693 REV.2
Start-up
Display
X.TUNE
ERROR 4
X.TUNE
ERROR 6
X.TUNE
ERROR 7
Table 25:
Causes of fault Corrective action
Control system aeration side leaking. Not possible, device defective.
The end positions for POS-MIN and
POS-MAX are too close together.
Incorrect assignment POS-MIN and
POS-MAX.
Check compressed air supply.
To determine POS-MIN and POS-MAX , move the actuator in the direction indicated on the display.
X.TUNE; possible fault messages
14.3.1
This function is needed for special requirements only.
For standard applications the X.TUNE
function (automatic adjustment of the position controller), as described above, is run using the factory default settings.
The description of the X.TUNE.CONFIG
function can be found in chapter
14.4
The process controller is activated by selecting the P.CONTROL
auxiliary function in the ADD.FUNCTION
menu.
The activation transfers P.CONTROL
into the main menu (MAIN) where it is available for further settings.
Activate the process controller as follows:
→ Press MENU for 3 s. Switching from process level setting level.
→ / Select ADD.FUNCTION
.
→ Select ENTER . The possible auxiliary functions are displayed.
→ / Select P.CONTROL
.
→ Select ENTER . P.CONTROL
is now marked by a cross .
→ Select EXIT . Acknowledgment and simultaneous return to the main menu (MAIN).
P.CONTROL
is now activated and incorporated into the main menu.
You have activated the process controller.
75 english
Type 8692, 8693 REV.2
Start-up
Following activation of P.CONTROL
, the P.Q‘LIN and P.TUNE
menus are also available in the main menu (MAIN). They offer support for the setting of the process control.
P.Q‘LIN Linearization of the process characteristic
P.TUNE
Self-optimization of the process controller (process tune)
ADD.FUNCTION
– Add auxiliary functions
Apart from activating the process controller, ADD.FUNCTION
can be used to activate auxiliary functions and incorporate them into the main menu.
The description can be found in chapter „16 Auxiliary functions“ auf Seite 94.
76 english
Type 8692, 8693 REV.2
Basic setting of the process controller
15.1
Set up the process controller as follows:
→ Press MENU for 3 s. Switching from process level setting level.
→ / Select P.CONTROL
. Selection in the main menu (MAIN).
→ Select ENTER . The submenu options for the basic setting are displayed.
→ / Select SETUP .
→ Select ENTER . The menu for setting up the process controller is displayed.
Setup is described in chapter „15.2 SETUP – Setting up the process controller“.
→ Select EXIT . Return to P.CONTROL.
You have set up the process controller.
→
→
→
Parameterize the process controller as follows:
→ Press MENU for 3 s. Switching from process level setting level.
→ / Select P.CONTROL
. Selection in the main menu (MAIN).
→ Select ENTER . The submenu options for the basic setting are displayed.
→ / Select PID.PARAMETER
.
→ Select ENTER . The menu for parameterizing the process controller is displayed.
Select EXIT . Return to P.CONTROL.
Select EXIT . Return to the main menu (MAIN).
Select EXIT . Switching from setting level process level.
You have parameterized the process controller.
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77
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Type 8692, 8693 REV.2
Basic setting of the process controller
15.2
These functions specify the type of control.
The procedure is described in the following chapters 15.2.1 to 15.2.5.
15.2.1
One of the following signal types can be selected for the process actual value:
• Standard signal
• Frequency signal
• Circuit with Pt 100
Factory setting: 4...20 mA
4...20 mA
0...1000 Hz
-20...+220 °C flow rate, pressure, level flow rate temperature
Specify the signal type PV-INPUT in the SETUP menu:
→ / Select PV-INPUT .
→ Select ENTER . The signal types are displayed.
→ / Select signal type.
→ Select SELECT . The selected signal type is now marked by a filled circle .
→ Select EXIT . Return to SETUP.
You have specified the signal type.
15.2.2
The following settings are specified in the submenu of PV-SCALE :
PVmin
1. The physical unit of the process actual value.
2. Position of the decimal point of the process actual value.
3. Lower scaling value of the process actual value.
In PVmin the unit of the process actual value and the position of the decimal point are specified for all scaling values ( SPmin, SPmax, PVmin, PVmax ).
PVmax
K factor
Upper scaling value of the process actual value.
K factor for the flow sensor
The menu option is available only for the frequency signal type ( PV-INPUT → Frequency ).
english
Type 8692, 8693 REV.2
Basic setting of the process controller
15.2.2.1.
The settings in the PV-SCALE menu have different effects, depending on the signal type selected in
PV-INPUT .
Even the selection options for the units of the process actual value (in PVmin ) depend on the signal type selected in PV-INPUT .
Settings in the submenu of
PV-SCALE
PVmin
PVmin
PVmax
K factor
Table 26:
Description of the effect
Selectable unit of the process actual value for the physical variables.
Adjustment range:
Specification of the reference range for the dead band of the process controller
( P.CONTROL → PID.PARAMETER
→ DBND).
Specification of the reference range for the analog feedback
(option).
ANALOG - Configuration of the analog output“ auf Seite 112
Yes
Yes
Dependency on the signal type selected in
PV-INPUT
4...20 mA PT 100 Frequency
Flow rate, temperature, pressure, length, volume.
(as well as ratio as % and no unit)
Temperature
Flow-rate
-9999...9999
-200...is specified by the sensor
0...9999
Yes
Yes
-
Yes
Sensor calibration:
Yes
No No
Sensor calibration:
Adjustment range:
No
–
No
–
Effects of the settings in PV-SCALE depending on the signal type selected in PV-INPUT
Yes see
0...9999
english
79
Type 8692, 8693 REV.2
Basic setting of the process controller
Example of a sensor calibration for signal type 4...20 mA :
10
Scaling value
[l/min]
Process actual value
PVmax
SPmax
Process set-point value
Scaling:
Process actual value from the transmitter:
4...20 mA corresponds to 0...10 l/min
Process set-point value from PLC:
4...20 mA corresponds to 0...8 l/min
PVmin
SPmin
0
4
Input signal [mA]
20
Figure 36: Example of a sensor calibration for signal type 4...20 mA
For internal set-point value default ( SP-INPUT → internal), the process set-point value is input directly on the process level.
Example of a sensor calibration for frequency signal type:
Pulses
Flow-rate
100
K factor
(pulses/liter)
Scaling:
Process actual value:
100 pulses correspond to 10 liters
Process set-point value:
K factor 1.25 correspond to 8 liters
80
0
10
Liters
Figure 37: Example of a sensor calibration for frequency signal type
Scale the process actual value in the menu as follows:
→ / Select PV-SCALE . Selection in the main menu (MAIN).
→ Select ENTER . The submenu options for scaling of the process actual value are displayed.
You have scaled the process actual value.
PVmin is set as follows:
→ / Select PVmin.
→ Select INPUT . The input screen is opened.
First specify the physical unit which has a dark background.
→ Select + . Select physical unit.
→ <- Select decimal point. The decimal point has a dark background.
→ Select + . The last digit of the scaling value has a dark background.
→ <- Select scaling value. The last digit of the scaling value has a dark background.
→ / + Increase value and <- select decimal point.
Set scaling value (lower process actual value).
english
Type 8692, 8693 REV.2
Basic setting of the process controller
→ Select OK . Return to PV-SCALE.
You have set the PVmin.
PVmax is set as follows:
→ / Select PVmax.
→ Select INPUT . The input screen is opened.
The last digit of the scaling value has a dark background.
→ / + Increase value and <- select decimal point.
Set scaling value (lower process actual value).
→ Select OK . Return to PV-SCALE.
You have set the PVmax.
Set the K factor as follows:
→ / Select K factor.
→ Select ENTER . The submenu options for scaling of the process actual value are displayed.
EITHER
→ / Select VALUE. Manual input of the K factor.
→ Select INPUT . The input screen is opened. The decimal point has a dark background.
→ Select + . Specify position of the decimal point.
→ <- Select value. The last digit of the value has a dark background.
→ / +
Set K factor.
Increase value and <- select decimal point.
→ Select OK . Return to K-factor.
OR
→ / Select TEACH-IN. Calculating the K factor by measuring a specific flow rate.
→
→
→
Select INPUT . The input screen is opened. The decimal point has a dark background.
Select ENTER , hold down for 5 s. Valve closes.
Select START . The container is being filled.
→ Select STOP . The measured volume is displayed and the input screen is opened.
The decimal point has a dark background.
→ Select + decimal point. Specify position of the decimal point.
→ <- Select value. The last digit of the value has a dark background.
→ Select + . The last digit of the scaling value has a dark background.
→ / + Increase value and
Set the measured volume.
<- select decimal point.
→ Select OK . Return to TEACH-IN.
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Type 8692, 8693 REV.2
Basic setting of the process controller
→
→
→
Select EXIT . Return to K-factor.
Select EXIT . Return to PV-SCALE.
Select EXIT . Return to SETUP.
You have set the K factor.
If the submenu is left by pressing the left selection key ESC , the value remains unchanged.
15.2.3
The SP-INPUT menu specifies how the default of the process set-point value is to be implemented.
• Internal:
• External
Input of the set-point value on the process level
Default of the set-point value via the standard signal input
Set the type of set-point value default as follows:
→ / Select SP-INPUT
→ Select ENTER . The types of set-point value default are displayed.
→ / Select the type of set-point value default.
→
→
Select SELECT . The selection is marked by a filled circle .
Select EXIT . Return to SETUP.
You have set the type of set-point value default.
For internal set-point value default ( SP-INPUT → internal), the process set-point value is input directly on the process level.
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15.2.4
The SP-SCALE menu assigns the values for the lower and upper process set-point value to the particular current or voltage value of the standard signal.
The menu is available for external set-point value default only ( SP-INPUT → external ).
For internal set-point value default ( SP-INPUT → internal), there is no scaling of the process set-point value via SPmin and SPmax .
The set-point value is input directly on the process level. The physical unit and the position of the decimal point are specified during the scaling of the process actual value ( PV-SCALE → PVmin).
Description see chapter „15.2.2 PV-SCALE– Scaling of the process actual value“ auf Seite 78.
english
Type 8692, 8693 REV.2
Basic setting of the process controller
Scaling the process set-point value:
→ / Select SP-SCALE
→ Select ENTER . The submenu options for scaling of the process set-point value are displayed.
→ / Select SPmin .
→ Select INPUT . The input screen is opened.
→ / + Increase value and select <- decimal point.
Set scaling value (lower process set-point value). The value is assigned to the smallest current or voltage value of the standard signal.
→ Select OK . Return to SP-SCALE.
→ / Select SPmax .
→ Select INPUT . The input screen is opened.
→ / + Increase value and select <- decimal point.
Set scaling value (upper process set-point value). The value is assigned to the largest current or voltage value of the standard signal.
→
→
Select OK . Return to SP-SCALE.
Select EXIT . Return to SETUP.
You have scaled the process set-point value.
If the submenu is left by pressing the left selection key ESC , the value remains unchanged.
15.2.5
The smooth switchover between the MANUAL and AUTOMATIC operating states can be activated or deactivated in the P.CO-INIT menu.
Factory default setting: bumpless
Smooth switchover activated.
Activate the smooth switchover of the operating states as follows:
→ / Select P.CO-INIT
→ Select ENTER . The function ( bumpless ) and ( standard ) is displayed.
→ / Select required function. bumpless = smooth switchover activated standard = smooth switchover deactivated
→
→
Select SELECT . The selection is marked by a filled circle .
Select EXIT . Return to SETUP.
You have switched over the operating states.
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Type 8692, 8693 REV.2
Basic setting of the process controller
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15.3
The following control parameters of the process controller are manually set in this menu.
DBND 1.0 % Insensitivity range (dead band) of the process controller
KP 1.00
Amplification factor of the (P-component of the PID controller)
TN 999.0
Reset time (I-component of the PID controller)
TV 0.0
Hold-back time (D-component of the PID controller)
X0 0.0 % Operating point
FILTER 0 Filtering of the process actual value input
The automatic parameterization of the PID controller integrated in the process controller
(menu options KP, TN. TV ) can be implemented with the aid of the P.TUNE
function
(see chapter „15.5 P.TUNE – Self-optimization of the process controller“).
The principles for setting the process controller can be found in chapters „27.2 Properties of PID
Controllers“ and „27.3 Adjustment rules for PID Controllers“
.
15.3.1
This function causes the process controller to respond from a specific control difference only. This protects both the solenoid valves in Type 8692, 8693 and the pneumatic actuator.
Factory setting: 1.0 % with reference to the range of the scaled process actual value (setting in the menu PV-SCALE → PVmin → PVmax) .
Enter the parameters as follows:
→ / Select PID.PARAMETER
.
→ Select ENTER . The menu for parameterizing the process controller is displayed.
→ / Select menu option .
→ Select INPUT . The input screen is opened.
→ / +
Set value for
Increase value and - reduce value
*
→
→
→
→
DBND X.X %
/
X0 0 %
/
FILTER 5
Select OK . Return to PID.PARAMETER.
Select EXIT . Return to P.CONTROL.
Select EXIT . Return to the main menu (MAIN).
Select EXIT . Return to P.CONTROL. Switching from setting level process level.
You have set the parameter.
If the submenu is left by pressing the left selection key ESC , the value remains unchanged.
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Type 8692, 8693 REV.2
Basic setting of the process controller
Insensitivity range for process control
Xd2‘
Process setpoint value
(SP)
Control difference
Xd2
Process actual value
(PV)
Xd2
Dead band to the controller
Xd2‘
Figure 38: Diagram DBND; insensitivity range for process control
15.3.2
The amplification factor specifies the P-contribution of the PID controller
(can be set with the aid of the P.TUNE
function).
Factory setting: 1.00
Enter the parameters as follows:
→ / Select PID.PARAMETER
.
→ Select ENTER . The menu for parameterizing the process controller is displayed.
→ / Select menu option .
→ Select INPUT . The input screen is opened.
→ / <-
Set value for
Select decimal point and + increase value
*
→
→
→
→
KP X.XX
/
TN X.0 sec
/
TV 1.0 sec
Select OK . Return to PID.PARAMETER.
:
Select EXIT . Return to P.CONTROL.
Select EXIT . Return to the main menu (MAIN).
Select EXIT . Return to P.CONTROL. Switching from setting level process level.
You have set the parameter.
If the submenu is left by pressing the left selection key ESC , the value remains unchanged.
The KP amplification of the process controller refers to the scaled, physical unit.
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Type 8692, 8693 REV.2
Basic setting of the process controller
15.3.3
The reset time specifies the I-component of the PID controller, can be set with the P.TUNE
function.
Factory setting: 999.9 s
Enter the parameters as follows:
→ / Select PID.PARAMETER
.
→ Select ENTER . The menu for parameterizing the process controller is displayed.
→ / Select menu option .
→ Select INPUT . The input screen is opened.
→ / <- Select decimal point and + increase value
Set value for
TN 999.9
→ Select OK . Return to PID.PARAMETER.
→ Select EXIT . Return to P.CONTROL.
→
→
Select EXIT . Return to the main menu (MAIN).
Select EXIT . Return to P.CONTROL. Switching from setting level process level.
You have set the parameter.
If the submenu is left by pressing the left selection key ESC , the value remains unchanged.
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Type 8692, 8693 REV.2
Basic setting of the process controller
15.3.4
The hold-back time specifies the D-contribution of the PID controller
(can be set with the aid of the P.TUNE
function).
Factory setting: 0.0 s
Enter the parameters as follows:
→ / Select PID.PARAMETER
.
→ Select ENTER . The menu for parameterizing the process controller is displayed.
→ / Select menu option .
→ Select INPUT . The input screen is opened.
→ / <- Select decimal point and + increase value
Set value for
→
TV 0.0
:
Select OK . Return to PID.PARAMETER.
→
→
→
Select EXIT . Return to P.CONTROL.
Select EXIT . Return to the main menu (MAIN).
Select EXIT . Return to P.CONTROL. Switching from setting level process level.
You have set the parameter.
If the submenu is left by pressing the left selection key ESC , the value remains unchanged.
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Type 8692, 8693 REV.2
Basic setting of the process controller
15.3.5
The operating point corresponds to the operating point of the proportional portion when control difference =
0.
Factory setting: 0.0 %
Enter the parameters as follows:
→ / Select PID.PARAMETER
.
→ Select ENTER . The menu for parameterizing the process controller is displayed.
→ / Select menu option .
→ Select INPUT . The input screen is opened.
→ / + Increase value and - reduce value
Set value for
X0 0.0 %
→ Select OK . Return to PID.PARAMETER.
→
→
→
Select EXIT . Return to P.CONTROL.
Select EXIT . Return to the main menu (MAIN).
Select EXIT . Return to P.CONTROL. Switching from setting level process level.
You have set the parameter.
If the submenu is left by pressing the left selection key ESC , the value remains unchanged.
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15.3.6
The filter is valid for all process actual value types and has a low-pass behavior (PT1).
Factory setting: 0
Enter the parameters as follows:
→ / Select PID.PARAMETER
.
→ Select ENTER . The menu for parameterizing the process controller is displayed.
→ / Select menu option .
→ Select INPUT . The input screen is opened.
→ / + Increase value and - reduce value
Set value for
→
FILTER 0
Select OK . Return to PID.PARAMETER.
→
→
→
Select EXIT . Return to P.CONTROL.
Select EXIT . Return to the main menu (MAIN).
Select EXIT . Return to P.CONTROL. Switching from setting level process level.
You have set the parameter.
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Type 8692, 8693 REV.2
Basic setting of the process controller
If the submenu is left by pressing the left selection key ESC , the value remains unchanged.
Setting the filter effect in 10 stages
Table 27:
6
7
4
5
8
9
0
1
2
3
Setting the filter effect
Setting
(Lowest filter effect)
(Largest filter effect)
Corresponds to cut-off frequency
(Hz)
10
5
2
1
0.5
0.2
0.1
0.07
0.05
0.03
you will find a table for entering your set parameters.
15.4
This function automatically linearizes the process characteristic.
In doing so, the nodes for the correction characteristic are automatically determined. To do this, the program moves through the valve stroke in 20 steps and measures the associated process variable.
The correction characteristic and the associated value pairs are saved in the menu option CHARACT → FREE .
This is where they can be viewed and freely programmed. For a description see chapter 16.1.3.
If the CARACT menu option has still not been activated and incorporated into the main menu (MAIN), this will happen automatically when P.Q‘LIN is being run.
Run the P.Q´LIN as follows:
→ / Select P.Q‘LIN . The function is in the main menu (MAIN) after activation of P.CONTROL
.
→ Select RUN , hold down as long as countdown (5 ...) is running. P.Q‘LIN is started.
The following displays are indicated on the display:
Q‘LIN #0
CMD=0%
Q.LIN #1
CMD=10%
... continuing to
Q.LIN #10
CMD=100%
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Type 8692, 8693 REV.2
Basic setting of the process controller
Display of the node which is currently running (progress is indicated by a progress bar along the upper edge of the display).
Q.LIN ready
Automatic linearization was successfully completed.
→ Select EXIT . Return to the main menu (MAIN).
You have set the parameter.
Possible fault messages when running P.Q‘LIN:
Display
Q.LIN err/break
P.Q‘LIN
ERROR 1
Cause of fault
Manual termination of linearization by pressing the EXIT key.
No supply pressure connected.
No change to process variable.
Corrective action
Connect supply pressure.
Check process and, if required, switch on pump or open the shut-off valve.
Check process sensor.
Check supply pressure.
P.Q‘LIN
ERROR 2
Table 28:
Failure of the supply pressure while
P.Q’LIN running.
Automatic adjustment of the X.TUNE
position controller not run.
P.Q‘LIN; possible fault messages
Run X.TUNE
.
15.5
This function can be used to automatically parameterize the PID controller integrated in the process controller.
In doing so, the parameters for the P, I and D-component of the PID controller are automatically determined and transferred to the corresponding menus of ( KP , TN , TV ). This is where they can be viewed and changed.
Explanation of the PID controller:
The control system of Type 8693 has an integrated PID process controller. Any process variable, such as flow rate, temperature, pressure, etc., can be controlled by connecting an appropriate sensor.
To obtain good control behavior, the structure and parameterization of the PID controller must be adjusted to the properties of the process (controlled section).
This task requires control experience as well as measuring instruments and is time-consuming. The P.TUNE
function can be used to automatically parameterize the PID controller integrated in the process controller.
The principles for setting the process controller can be found in chapters „27.2 Properties of PID
Controllers“ and „27.3 Adjustment rules for PID Controllers“
.
english
Type 8692, 8693 REV.2
Basic setting of the process controller
15.5.1
The P.TUNE
function automatically identifies the process. To do this, the process is activated with a defined disturbance variable. Typical process characteristics are derived from the response signal and the structure and parameters of the process controller are determined on the basis of the process characteristics.
When using P.TUNE
self-optimization, optimum results are obtained under the following conditions:
• Stable or stationary conditions concerning the process actual value PV when starting P.TUNE
.
• Execution of P.TUNE
in the operating point or within the operating range of the process control.
15.5.2
The measures described below are not compulsory conditions for running the P.TUNE
function.
However, they will increase the quality of the result.
The P.TUNE
function can be run in the MANUAL or AUTOMATIC operating state.
When P.TUNE is complete, the control system is in the operating state which was set previously.
15.5.2.1.
Move the process actual value up to the operating point as follows:
→ / Select PV . The process actual value PV is indicated on the display.
→ Select MANU . Change to MANUAL operating state.
The input screen for manually opening and closing the valve is displayed.
→ Open valve OPN or close valve CLS
By opening or closing the control valve, move the process actual value to the required operating point.
→ As soon as the process actual value PV is constant, the P.TUNE
function can be started.
You have moved the process actual value PV to the operating point.
15.5.2.2.
By inputting a process set-point value SP , move the process actual value PV to the operating point.
Observe the internal or external set-point value default for the input
( P,CONTROL → SETUP → SP-INPUT → internal/external) :
For internal set-point value default: Enter the process set-point value SP via the keyboard of the device see description of the process set-point value below.
For external set-point value default: Enter the process set-point value SP via the analog set-point value input.
Enter the process set-point value as follows: ( Setting on the process level)
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Type 8692, 8693 REV.2
Basic setting of the process controller
92
→ / Select SP . The process set-point value is indicated on the display.
→ Select INPUT . The input screen for inputting the process set-point value is displayed.
→ / Input value <- Select decimal point
+ Increase value
The selected set-point value SP should be near the future operating point.
→ Select OK . Acknowledge input and return to the display of SP.
You have inputted the process actual value.
The process variable PV is changed according to the set-point value default based on the factory default
PID parameters.
→ Before running the P.TUNE
function, wait until the process actual value PV has reached a stable state.
To observe PV, it is recommended to select via the arrow keys / the graphical display SP/PV(t) .
To be able to select the display SP/PV(t) , it must be activated in the EXTRAS menu
(see chapter „16.2.1 EXTRAS – Setting the display“.
→ If PV oscillates continuously, the preset amplification factor of the process controller
P.CONTROL
→ PID.PARAMETER
should be reduced.
KP in the menu
→ As soon as the process actual value PV is constant, the P.TUNE
function can be started.
15.5.3
WARNING
Risk of injury from uncontrolled process.
While the P.TUNE
function is running, the control valve automatically changes the current degree of opening and intervenes in the running process.
▶ Using suitable measures, prevent the permitted process limits from being exceeded.
For example by:
- an automatic emergency shutdown
- stopping the P.TUNE
function by pressing the STOP key (press left or right key).
Set the P.TUNE
function as follows:
→ Press MENU for 3 s. Switching from process level setting level.
→ / Select P.TUNE
.
→ Hold down RUN as long as countdown (5 ...) is running.
During the automatic adjustment the following messages are indicated on the display.
“starting process tune” - Start self-optimization.
“identifying control process” - Process identification. Typical process variables are determined from the response signal to a defined stimulus.
“calculating PID parameters” - Structure and parameters of the process controller are determined.
“TUNE ready” - Self-optimization was successfully completed.
→ Press any key. Return to the main menu (MAIN).
→ Select EXIT . Switching from setting level process level.
You have set the P.TUNE
function.
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Type 8692, 8693 REV.2
Basic setting of the process controller
To stop P.TUNE
, press the left or right selection key STOP .
The changed data is saved in the memory (EEPROM) only when there is a switch to the process level, by leaving the main menu (MAIN) using the left selection key EXIT .
Possible fault messages when running P.TUNE:
Display
TUNE err/break
P.TUNE
ERROR 1
Table 29:
Cause of fault
Manual termination of self-optimization by pressing the EXIT key.
No supply pressure connected.
No change to process variable.
Corrective action
Connect supply pressure.
Check process and, if required, switch on pump or open the shut-off valve.
Check process sensor.
P.TUNE; possible fault messages
Activation and configuration of auxiliary functions are described in the following chapter
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Type 8692, 8693 REV.2
Auxiliary functions
The device has auxiliary functions for demanding control tasks.
This chapter describes how the auxiliary functions are activated, set and configured.
Overview and description of the auxiliary functions:
ADD.FUNCTION
CHARACT
CUTOFF
DIR.CMD
DIR.ACT
SPLTRNG *
X.LIMIT
X.TIME
X.CONTROL
P.CONTROL
SECURITY
SAFEPOS
SIG.ERROR
BINARY.IN
OUTPUT
CAL.USER
SET.FACTORY
SERVICE.BUES
EXTRAS
SERVICE
Description
Selection of the transfer characteristic between input signal and stroke
(correction characteristic)
Sealing function for position controller
Effective direction between input signal and set-point position
Assignment of the aeration state of the actuator chamber to the actual position
Signal split range; input signal as a % for which the valve runs through the entire stroke range.
Limit of the mechanical stroke range
Limit of the control speed
Parameterization of the position controller
Parameterization of the process controller
Code protection for settings
Input the safety position
Configuration of signal level fault detection
Activation of the digital input
Configuration of outputs (option)
Calibration
Reset to factory settings
Configuring the büS service interface
Setting the display
For internal use only
SIMULATION
DIAGNOSE
Simulation of set-point value, process valve, process
Diagnostic menu (option)
* The SPLTRNG auxiliary function can only be selected if P.CONTROL (process control) is not activated.
Figure 39: Overview - auxiliary functions
16.1
The required auxiliary functions must be activated by the user initially by incorporation into the main menu
(MAIN). The parameters for the auxiliary functions can then be set.
To deactivate a function, remove it from the main menu. This will cause the previous settings, created under this function, to be rendered invalid again.
english
Type 8692, 8693 REV.2
Auxiliary functions
16.1.1
Add auxiliary functions to ADD.FUNCTION as follows:
→ Press MENU for 3 s. Switching from process level setting level.
→ / Select ADD.FUNCTION
.
→ Select ENTER . The possible auxiliary functions are displayed.
→ / Select required auxiliary function
→ Select ENTER . The selected auxiliary function is now marked by a cross .
→ Select EXIT . Acknowledgment and simultaneous return to the main menu (MAIN).
The marked function is now activated and incorporated into the main menu.
You have added the auxiliary functions.
Set the parameters of the auxiliary functions as follows:
→ / Select auxiliary function. In the main menu (MAIN) select the auxiliary function.
→ Select ENTER . Opening the submenu to input the parameters.
Further information about the setting can be found in the following chapter „16
→ Select EXIT* or ESC*
→ Select EXIT
. Return to a higher level or to the main level (MAIN).
. Switching from setting level process level.
You have parameterized the auxiliary functions.
* The designation of the key depends on the selected auxiliary function.
The changed data is saved in the memory (EEPROM) only when there is a switch to the process level, by leaving the main menu (MAIN) using the left selection key EXIT .
16.1.2
If a function is removed from the main menu, the settings implemented previously under this function become invalid again.
Remove auxiliary functions from ADD.FUNCTION as follows:
→ Press MENU for 3 s. Switching from process level setting level.
→ / Select ADD.FUNCTION
.
→ Select ENTER . The possible auxiliary functions are displayed.
→ / Select auxiliary function
→ Select ENTER . Remove function mark (no cross ).
→ Select ENTER . Acknowledgment and simultaneous return to the main menu (MAIN).
The marked function is now deactivated and removed from the main menu.
You have removed the auxiliary functions.
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Type 8692, 8693 REV.2
Auxiliary functions
16.1.3
Characteristic (customer-specific characteristic)
Use this auxiliary function to select a transfer characteristic with reference to set-point value (set-point position,
CMD ) and valve stroke ( POS ) for correction of the flow line or operating characteristic.
Factory setting: linear
Each auxiliary function, which is to be set, must be incorporated initially into the main menu
(MAIN). See chapter „16.1 Activating and deactivating auxiliary functions“ .
Enter the freely programmable characteristic as follows:
→ Press MENU for 3 s. Switching from process level setting level.
→ / Select CHARACT . (To do this, the auxiliary function must be incorporated into the main menu).
→ Select ENTER . Menu options of CHARACT are displayed.
→ / linear (linear characteristic)
GP 1:25: Equal percentage characteristic 1:25
GP 1:33: Equal percentage characteristic 1:33
GP 1:50: Equal percentage characteristic 1:50
GP 25:1: Inversely equal percentage characteristic 25:1
GP 33:1: Inversely equal percentage characteristic 33:1
GP 50:1: Inversely equal percentage characteristic 50:1
FREE: * User-defined characteristic, freely programmable via nodes
→ Select SELECT . The selection is marked by a filled circle .
→ Select EXIT . Switching from setting level process level.
The flow characteristic k
V
= f(s) indicates the flow-rate of a valve, expressed by the k
V
value as a function of the stroke s of the actuator spindle. It is determined by the design of the valve seat and the valve seat seal. In general two types of flow characteristics are implemented, the linear and the equal percentage.
In the case of linear characteristics, equal k
V
value changes dk
V
are assigned to equal stroke changes ds.
(dk
V
= n lin
⋅ ds).
In the case of an equal percentage characteristic, an equal percentage change to the kV value corresponds to a stroke change ds.
(dk
V
/k
V
= n eqlprct
⋅ ds).
The operating characteristic Q = f(s) specifies the correlation between the flow rate Q in the installed valve and the stroke s. This characteristic has the properties of the pipelines, pumps and consumers. It therefore exhibits a form which differs from the flow characteristic. english
Type 8692, 8693 REV.2
Auxiliary functions
Standardized valve stroke [%] (POS)
Set-point position [%]
CMD
Figure 40: Characteristics
In the case of control tasks for closed-loop control systems it is usually particular demands which are placed on the course of the operating characteristic, e.g. linearity. For this reason it is occasionally necessary to correct the course of the operating characteristic in a suitable way. For this purpose Type 8692, 8693 features a transfer element which implements different characteristics. These are used to correct the operating characteristic.
Equal percentage characteristics 1:25, 1:33, 1:50, 25:1, 33:1, and 50:1 and a linear characteristic can be set.
Furthermore, a characteristic can be freely programmed via nodes or automatically calibrated.
16.1.3.1.
The characteristic is defined via 21 nodes which are distributed uniformly over the set-point position ranging from 0...100 %. They are spaced at intervals of 5%. A freely selectable stroke (adjustment range 0...100 %) can be assigned to each node. The difference between the stroke values of two adjacent nodes must not be greater than 20%.
Enter the freely programmable characteristic as follows:
→ Press MENU for 3 s. Switching from process level setting level.
→ / Select CHARACT . To do this, the auxiliary function must be incorporated into the main menu.
→ Select ENTER . Menu options of CHARACT are displayed.
→ / Select FREE
→
→
Select SELEC . The graphical display of the characteristic is displayed.
Select INPUT . Submenu with the individual nodes (as %) is opened.
→ / Select node.
Select INPUT .
The SET-VALUE input screen for inputting values is opened.
Previously set value (as %)
y 0 –>: 2
[%]
ESC OK
2
This value is changed with the arrow keys
Acknowledge value
Return without change
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→ / Enter value: Input value for the selected node.
+ Increase value
- Reduce value
→
→
Select OK . Acknowledge input and return to the FREE submenu.
Select EXIT . Return to the CHARACT menu.
→
→
Select EXIT . Return to the main menu (MAIN).
Select EXIT . Switching from setting level process level.
The changed data is saved in the memory (EEPROM).
You have entered the freely programmable characteristic.
The changed data is saved in the memory (EEPROM) only when there is a switch to the process level, by leaving the main menu (MAIN) using the left selection key EXIT .
Example of a programmed characteristic
Valve stroke [%]
( POS )
100
90
80
70
60
50
40
30
20
10
0
Standard signal [%]
( CMD ) 10 20 30 40 50 60 70 80 90 100
4...20 mA
0...20 mA
0...10 V
0...5 V
98
Figure 41: Example of a programmed characteristic
In the section “ Tables for customer-specific settings
grammed characteristic.
english
Type 8692, 8693 REV.2
Auxiliary functions
Type 8692, 8693 REV.2
Auxiliary functions
16.1.4
This function causes the valve to be sealed outside the control range.
To do this, the limits for the set-point position ( CMD ) are entered as a percentage from which the actuator is fully deaerated or aerated.
Controlled operation opens or resumes at a hysteresis of 1 %.
If the process valve is in the sealing area, the message “CUTOFF ACTIVE” is indicated on the display.
Only for type 8693: Here you can select the set-point value to which the sealing function is to apply:
Type PCO
Type XCO
Process set-point value (
SP )
Set-point position
(CMD )
If Type PCO was selected, the limits for the process set-point value ( SP ) are input as a percentage with reference to the scaling range.
Factory setting: Min = 0 % ; Max = 100 %; CUT type = Type PCO
Enter CUTOFF as follows:
→ Press MENU for 3 s. Switching from process level setting level.
→ / Select CUTOFF . (To do this, the auxiliary function must be incorporated into the main menu).
→ Select ENTER . Menu options of CUTOFF are displayed.
→ Select INPUT .
The Min 0% input screen for inputting values is opened.
→ / Enter value: Input value for the selected node.
+ Increase value
- Reduce value
→ Select INPUT .
The Max 100% input screen for inputting values is opened.
→ / Enter value: Input value for the selected node.
+ Increase value
- Reduce value
→ Select OK . Acknowledge input and return to the CUTOFF submenu.
* If the submenu is left by pressing the ESC key, the value remains unchanged.
Or for type 8693:
→ Select INPUT .
The CUT type* input screen for inputting values is opened. * Available for Type 8693 only
→
→
→
→
→
Select SELEC . The Type PCO input screen for inputting the selection of the process set-point value.
Select SELEC . The Type XCO input screen for inputting the selection of the set-point position.
Select EXIT . Return to the CUTOFF menu.
Select EXIT . Return to the main menu (MAIN).
Select EXIT . Switching from setting level process level.
The changed data is saved in the memory (EEPROM).
You have entered the CUTOFF sealing function.
99 english
Type 8692, 8693 REV.2
Auxiliary functions
The changed data is saved in the memory (EEPROM) only when there is a switch to the process level, by leaving the main menu (MAIN) using the left selection key EXIT .
Valve stroke [%]
(POS)
Adjustable from 75...100 %
100
Set-point value [%]
(CMD)
Adjustable from 0...25 %
Figure 42: CUTOFF graph;
16.1.5
You can use this auxiliary function to set the effective direction between the input signal( INPUT ) and the setpoint position ( CMD ) of the actuator.
Each auxiliary function, which is to be set, must be incorporated initially into the main menu
(MAIN). See chapter „16.1 Activating and deactivating auxiliary functions“ .
Enter the effective direction of the position controller set-point value as follows: ( Setting on the process level)
→ / Select DIR.CMD
. The effective direction is indicated on the display.
→ Select ENTER . The input screen for inputting the effective direction is displayed.
→ / Select SELEC . Rise: d irect effective direction (e.g. 4 mA or 0 V → 0 %, 20 mA or 5/10 V → 100 %)
Fall: i nverse effective direction (e.g. 4 mA or 0 V → 100 %, 20 mA or 5/10 V → 0 %)
The selection is marked by a filled circle .
→ Select EXIT . Acknowledge input and return to the display of DIR.CMD.
You have entered the effective direction of the position controller set-point value.
The changed data is saved in the memory (EEPROM) only when there is a switch to the process level, by leaving the main menu (MAIN) using the left selection key EXIT .
english
Type 8692, 8693 REV.2
Auxiliary functions
Set-point position
( CMD )
Input signal
( INPUT )
Figure 43: DIR.CMD graph
16.1.6
Use this auxiliary function to set the effective direction between the aeration state of the actuator and the actual position ( POS ).
Factory setting: Rise
Enter the effective direction of the actuating drive as follows: (Setting on the process level)
→ / Select DIR.ACT
. The effective direction is indicated on the display.
→ Select ENTER . The input screen for inputting the effective direction is displayed.
→ / Select SELEC . Rise: d irect effective direction (deaerated → 0 %; aerated 100 %)
Fall: i nverse effective direction (deaerated → 100 %; aerated 0 %)
The selection is marked by a filled circle .
→ Select EXIT . Acknowledge input and return to the display of DIR.ACT.
You have entered the effective direction of the actuating drive.
If the Fall function is selected here, the description of the arrow keys (on the display) changes to
MANUAL operating state OPN → CLS and CLS → OPN
Only when there is a switch to the process level, by leaving the main menu (MAIN) via the left selection key EXIT , is the modified data saved in the memory (EEPROM).
Actual position
( POS ) deaerated
Figure 44: DIR.ACT graph aerated
Aeration state
101 english
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Type 8692, 8693 REV.2
Auxiliary functions
16.1.7
Min. and max. values of the input signal as % for which the valve runs through the entire stroke range.
Factory setting: Min = 0 %; Max = 100 %
Type 8693: The SPLTRNG auxiliary function can only be selected when operating as a position controller.
P.CONTROL = not activated.
Use this auxiliary function to limit the position set-point position range of Type 8692, 8693 by specifying a minimum and a maximum value.
As a result, it is possible to split a used standard signal range (4...20 mA, 0...20 mA, 0...10 V or 0...5 V) over several devices (without or with overlapping).
This allows several valves to be used alternately or, in the case of overlapping set-point value ranges, simultaneously as actuators.
Enter the signal split range as follows: ( Setting on the process level)
→ / Select SPLTRNG . The effective direction is indicated on the display.
→ Select ENTER . The input screen for inputting the effective direction is displayed.
→ Select INPUT .
The Min 0% input screen for inputting values is opened.
→ / Enter value: Enter the minimum value of the input signal as %. Adjustment range: 0...75 %
+ Increase value
- Reduce value
→ Select INPUT .
The Max 100% input screen for inputting values is opened.
→ / Enter value: Enter the maximum value of the input signal as %.
Adjustment range: 25...100 %
+ Increase value
- Reduce value
→ Select OK *. Acknowledge input and return to the display of SPLTRNG.
You have entered the signal split range.
* If the submenu is left by pressing the ESC key, the value remains unchanged.
The changed data is saved in the memory (EEPROM) only when there is a switch to the process level, by leaving the main menu (MAIN) using the left selection key EXIT .
Splitting a standard signal range into two set-point value ranges english
Type 8692, 8693 REV.2
Auxiliary functions
Valve stroke [%] ( POS )
100
4 6 8 10 12 14 16 18 20
Set-point value range
Position controller 1
Set-point value range
Position controller 2
Set-point value [mA]
( INP )
Figure 45: SPLTRNG graph
16.1.8
This auxiliary function limits the (physical) stroke to specified percentage values (minimum and maximum). In doing so, the stroke range of the limited stroke is set equal to 100 %.
If the limited stroke range is left during operation, negative POS values or POS values greater than 100 % are indicated.
Factory setting: Min = 0 %, Max = 100 %
Enter the limit of the mechanical stroke range as follows: ( Setting on the process level)
→ / Select X.LIMIT
. The limit of the mechanical stroke range is indicated on the display.
→ Select ENTER . The input screen for inputting the mechanical stroke range is displayed.
→ Select INPUT .
The Min 0% input screen for inputting values is opened.
→ / Enter value: Input the initial value of the stroke range as %.
Adjustment range: 0...50 % of the total stroke
+ Increase value
- Reduce value
→ Select INPUT .
The Max 100% input screen for inputting values is opened.
→ / Enter value: Input the final value of the stroke range as %
Adjustment range: 50...100 % of the total stroke
+ Increase value
- Reduce value
→ Select OK *. Acknowledge input and return to the display of X.LIMIT.
The minimum gap between Min and Max is 50 %
You have entered the limit of the mechanical stroke range.
* If the submenu is left by pressing the ESC key, the value remains unchanged.
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Type 8692, 8693 REV.2
Auxiliary functions
The changed data is saved in the memory (EEPROM) only when there is a switch to the process level, by leaving the main menu (MAIN) using the left selection key EXIT .
Limited stroke (%)
( POS ) (
Physical stroke (%)
POS )
Unlimited stroke
Limited stroke
Set-point value [mA]
( INPUT )
Figure 46: X.LIMIT graph
16.1.9
Use this auxiliary function to specify the opening and closing times for the total stroke and to limit the control speeds.
When the X.TUNE
function is running, the minimum opening and closing time for the entire stroke is automatically entered for Open and Close . Therefore, movement can be at maximum speed.
Factory setting: values determined at the factory by the X.TUNE
function
If the control speed is limited, values can be input for Open and Close which are between the minimum values determined by the X.TUNE
and 60 s.
104
Enter the limit of the control speed as follows: (Setting on the process level)
→ / Select X.TIME
. The limit of the mechanical stroke range is indicated on the display.
→ Select ENTER . The input screen for inputting the limit of the control speed is displayed.
→ Select INPUT .
The Open 1 input screen for inputting values is opened.
→ / Enter value: Opening time for total stroke (in seconds)
Adjustment range: 1...60 seconds
+ Increase value
- Reduce value
→ Select INPUT .
The CLOSE 1 input screen for inputting values is opened.
english
Type 8692, 8693 REV.2
Auxiliary functions
→ / Enter value: Closing time for total stroke (in seconds)
Adjustment range: 1...60 seconds
+ Increase value
- Reduce value
→ Select OK *. Acknowledge input and return to the display of X.TIME.
You have entered the limit of the control speed.
* If the submenu is left by pressing the ESC key, the value remains unchanged.
The changed data is saved in the memory (EEPROM) only when there is a switch to the process level, by leaving the main menu (MAIN) using the left selection key EXIT .
Effect of limiting the opening speed when there is a jump in the set-point value
Valve stroke [%]
( POS , CMD )
Set-point value
Actual value t
Open
Figure 47: X.TIME graph
16.1.10
This function can be used to re-adjust the parameters of the position controller.
The re-adjustment should only be made if it is required for the application.
The parameters for X.CONTROL
are automatically set with the exception of DBND (dead band) when specifying the basic settings by running X.TUNE
.
If the setting for DBND (dead band depending on the friction behavior of the actuating drive) is also to be automatically determined when X.TUNE
is running, X.CONTROL
must be activated by incorporating it into the main menu (MAIN).
When X.TUNE
is running, all previously re-adjusted values are overwritten (except the X.TUNE
function was manually parameterized).
DBND
KXopn
KXcls
KDopn
Insensitivity range (dead band)
Amplification factor of the proportional portion (for aerating the valve)
Amplification factor of the proportional portion (for deaerating the valve)
Amplification factor of the differential portion (for aerating the valve)
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Type 8692, 8693 REV.2
Auxiliary functions
KDcls
YBfric
YEfric
Amplification factor of the differential portion (for deaerating the valve)
Friction correction (for aerating the valve)
Friction correction (for deaerating the valve)
Enter the parameterization of the position controller as follows: ( Setting on the process level)
→ / Select X.CONTROL
. The limit of the mechanical stroke range is indicated on the display.
→ Select ENTER . The input screen for parameterization of the position controller is displayed.
→ Select INPUT .
The input screen DBND 1%, KXopn, KXcls, KDopn, KDcls, YBfric and YEfric for inputting values is opened.
→ / Enter value:
+ Increase value
- Reduce value
→ Select OK *.
You have input the parameterization of the position controller.
* If the submenu is left by pressing the ESC key, the value remains unchanged.
DBND Insensitivity range (dead band) of the position controller
Input the dead band as %, with reference to the scaled stroke range; i.e. X.LIMIT Max - X.LIMIT Min
(see auxiliary function „16.1.8 X.LIMIT – Limit of the mechanical stroke range“).
This function causes the controller to respond only from a specific control difference; as a result the solenoid valves in Type 8692, 8693 and the pneumatic actuator are protected.
Xd1‘
Position setpoint value
Control difference
Xd1
Xd1
Dead band to the controller
Xd1‘
Figure 48: X.CONTROL graph
Position actual value
106
16.1.11
english
Type 8692, 8693 REV.2
Auxiliary functions
16.1.12
Use the SECURITY function to prevent Type 8692, 8693 or individual functions from being accessed unintentionally.
Factory setting: Access Code: 0000
If the code protection is activated, the code (set Access Code or master code) must be input whenever operator action is disabled.
Set the code protection as follows:
→ Press MENU for 3 s. Switching from process level setting level.
→ / Select SECURITY (To do this, the auxiliary function must be incorporated into the main menu).
→ Select ENTER . The input screen for the access code ( Access Code) is displayed.
→ / <- Select decimal point and + increase number.
Enter code.
For the first setting: Access Code 0000 (factory settings)
For activated code protection: Access Code from the user *
→ Select OK . The submenu of SECURITY is opened.
→ / Select CODE .
→ Select INPUT .
The input screen for specifying the access code ( Access Code) is displayed.
→ / <- Select decimal point and + increase number.
Enter required access code.
→ Select OK . Acknowledgment and return to the SECURITY menu.
→ / Select. Selector operator actions to which the code protection is to apply.
→ Select SELECT . Activate code protection by checking the box .
→ Select EXIT . Acknowledgment and simultaneous return to the main menu (MAIN).
→ Select EXIT . Switching from setting level process level.
You have set the code protection.
The changed data is saved in the memory (EEPROM) only when there is a switch to the process level, by leaving the main menu (MAIN) using the left selection key EXIT .
* If you have forgotten the set code:
All operator actions can be implemented with the non-changeable master code. This 4-digit master code can be found in the printed brief instructions for Type 8692, 8693.
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Type 8692, 8693 REV.2
Auxiliary functions
16.1.13
This function specifies the actuator safety position which is started at defined signals.
The set safety position is only started
• if a corresponding signal is applied to the digital input
(configuration see
chapter „16.1.15 BINARY.IN – Activation of the digital input“) or
• If a signal fault occurs
(configuration see
chapter „16.1.14 SIG.ERROR – Configuration of signal level fault detection“ .
In the case of the bus variant, the safety position is also started with
• BUS ERROR (adjustable)
If the mechanical stroke range is limited with the X.LIMIT
function, only safety positions within these limits can be started.
This function is run in AUTOMATIC operating state only.
Factory setting: 0 %
Enter the safety position as follows: ( Setting on the process level)
→ / Select SAFEPOS . (To do this, the auxiliary function must be incorporated into the main menu).
→ Select ENTER . The input screen for parameterization of the position controller is displayed.
→ Select INPUT .
Enter the safety position adjustment range: 0...100 % **
→ / Enter value:
+ Increase value
- Reduce value
→ Select OK *.
You have entered the safety position.
* If the submenu is left by pressing the ESC key, the value remains unchanged.
** If the safety position is 0 % or 100 %, the actuator is completely deaerated or aerated as soon as the safety position is active in the SIG-ERROR or BINARY-IN auxiliary functions.
The changed data is saved in the memory (EEPROM) only when there is a switch to the process level, by leaving the main menu (MAIN) using the left selection key EXIT .
108
16.1.14
The SIG.ERROR
function is used to detect a fault on the input signal.
If signal fault detection is activated, the respective fault is indicated on the display.
(see chapter „21.3 Fault messages“.
A fault detection on the input signal is only possible for signal types 4...20 mA and Pt 100.
The particular menu branch is hidden for other signal types.
• 4...20 mA: Fault if input signal ≤ 3.5 mA (± 0.5 % of final value, hysteresis 0.5 % of final value)
• Pt 100 (can be set for process controller Type 8693 only):
Fault if input signal 225 °C (± 0.5 % of final value, hysteresis 0.5 % of final value) english
Type 8692, 8693 REV.2
Auxiliary functions
The signal type is set in the following menus:
1 .
INPUT (for Types 8692 and 8693):
See chapter „14.2 INPUT - Setting the input signal“
.
2.
P.CONTROL
(for Type 8693 only and when process controller activated):
See chapter „15.2.1 PV-INPUT – Specifying signal type for the process actual value“ .
NOTE: The fault detection is only possible if the external set-point value default was selected in SP-INPUT
. See chapter „15.2.3 SP-INPUT – Type of the set-point value default (internal or external)“
.
Set the signal fault detection for input signal as follows: ( Setting on the process level)
→ / Select SIG.ERROR
. (To do this, the auxiliary function must be incorporated into the main menu).
→ Select ENTER . The input screen for setting the signal fault detection for input signal is displayed.
→ / Select SP/CMD Input. SP = process set-point value, CMD = set-point position
→ Select ENTER .
→ / Select Error off (deactivate signal fault detection).
Select Error on (activate signal fault detection).
→
→
→
→ Select SELEC . The selection is marked by a filled circle .
→ / Select SAFEPOS ( Deactivating/activating approach of the safety position * ) .
→ / Select SafePos off .
Select SafePos on** .
Select SELEC . The selection is marked by a filled circle .
Select EXIT and return to the SP/CMD Input menu.
Select EXIT and return to the SIG.ERROR
menu.
For Type 8693 only (process control) :
→ / Select SIG.ERROR
. (To do this, the auxiliary function must be incorporated into the main menu).
→ Select ENTER . The input screen for setting the signal fault detection for input signal is displayed.
→ / Select PV-Input. PV = process actual value
→ Select ENTER .
→ / Select Error off (deactivate signal fault detection).
Select Error on (activate signal fault detection).
→ Select SELEC . The selection is marked by a filled circle .
→ / Select SAFEPOS ( Deactivating/activating approach of the safety position * ) .
→ / Select SafePos off .
Select SafePos on** .
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Type 8692, 8693 REV.2
Auxiliary functions
→
→
→
Select SELEC . The selection is marked by a filled circle .
Select EXIT and return to the SP/CMD Input menu.
Select EXIT and return to the SIG.ERROR
menu.
You have set the signal fault detection for input signal.
* Approaching the safety position can be set only when signal fault detection (Error on) has been activated.
When signal fault detection (Error off) has been deactivated, the message “not available” is indicated.
** For behavior of the actuator during a signal fault detection see the following description.
16.1.14.1.
Selection
SafePos off
– The actuator remains in the position which corresponds to the set-point value last transferred (default setting).
Selection
SafePos on
– Approaching the safety position activated:
In the event of a signal fault detection, the behavior of the actuator depends on the activation of SAFEPOS
auxiliary function. See chapter „16.1.13 SAFEPOS – Inputting the safety position“.
• SAFEPOS activated: In the event of a signal fault detection the actuator moves to the position which is specified in the SAFEPOS auxiliary function.
• SAFEPOS not activated: The actuator moves to the safety end position which it would assume if the electrical and pneumatic auxiliary power failed.
The activation for approaching the safety position (selection SafePos on) is possible only when signal fault detection has been activated ( ERROR on) .
16.1.15
The digital input is configured in this menu. The following functions can be assigned to it:
SafePos Approaching SafePos
Manu/Auto Switching over the operating state (MANUAL / AUTOMATIC)
X.TUNE
Starting the function X.TUNE
Only for type 8693 and when process controller activated:
X.CO/P.CO
Switching between position controller and process controller
110
Activate the digital inputs as follows: ( Setting on the process level)
→ / Select BINARY.IN
. (To do this, the auxiliary function must be incorporated into the main menu).
→ Select ENTER . The input screen for activating the digital inputs is displayed.
english
Type 8692, 8693 REV.2
Auxiliary functions
→ / Select different BIN.IN.
Select SafePos. Approaching SafePos, select Manu/Auto. Switch over operating state , select X.Tune. Start X.TUNE, select X.CO / P.CO. Switching between position controller and process controller or select BIN.IN type and activate normally open or normally closed .
→ Select SELECT . The selection is marked by a filled circle .
→
→
Select EXIT
Select EXIT . Switching from setting level process level.
You have activated the digital inputs.
SafePos – Approaching a safety position:
The behavior of the actuator depends on the activation of the SAFEPOS auxiliary function.
See chapter „16.1.13 SAFEPOS – Inputting the safety position“.
SAFEPOS activated: The actuator moves to the safety position which is specified in the SAFEPOS auxiliary function.
SAFEPOS deactivated: The actuator moves to the safety end position which it would assume if the electrical and pneumatic auxiliary power failed.
Digital input = 1 → Actuator moves to the set safety position.
Manu/Auto – Switching between the MANUAL and AUTOMATIC operating states:
Digital input = 0 → AUTOMATIC AUTO operating state
Digital input = 1 → MANUAL MANU operating state
If the Manu/Auto function was selected in the BINARY.IN
menu, it is no longer possible to change the operating state on the process level using the MANU and AUTO keys.
X.TUNE
– Starting the function X.TUNE:
Digital input = 1 → Start X.TUNE
X.CO/P.CO
– Switching between position controller and process controller:
This menu option stands only for Type 8693 and is available when process controller ( P.CONTROL
) has been activated.
Digital input = 0 → Position controller ( X.CO
)
Digital input = 1 → Process controller ( P.CO
)
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Auxiliary functions
16.1.16
The OUTPUT menu option is only indicated in the selection menu of ADD.FUNCTION
if Type 8692,
8693 has outputs (option).
Type 8692, 8693, which has the outputs option, is available in the following variants:
• an analog output
• an analog output and two digital outputs
• two digital outputs
According to the variant of Type 8692, 8693, only the possible adjustable outputs
( ANALOG, ANALOG + BIN 1 + BIN 2 or BIN 1 + BIN 2 ) are indicated in the OUTPUT menu option.
112
Configure the outputs as follows: ( Setting on the process level)
→ / Select OUTPUT . (To do this, the auxiliary function must be incorporated into the main menu).
→ Select ENTER . The input screen for configuring the outputs is displayed.
→ / Select OUT ANALOG.
→ Select ENTER and configure the analog output.
→ / Select OUT BIN1.
→ Select ENTER and configure the digital output 1.
→ / Select OUT BIN2.
→
→
Select ENTER and configure the digital output 2.
Select EXIT . Switching from setting level process level.
You have configured the outputs.
16.1.16.1.
Type 8692: The feedback of the current position ( POS ) or of the set-point value ( CMD ) can be transmitted to the control center via the analog output.
Type 8693: The feedback of the current position ( POS ) or of the set-point value ( CMD ), of the process actual value (PV) or of the process set-point value (SP) can be transmitted to the control center via the analog output.
Configure the analog output as follows: ( Setting on the process level)
→ / Select OUT ANALOG. (To do this, the auxiliary function must be incorporated into the main menu).
→ Select ENTER . The input screen for configuring the analog output is displayed.
→ / Select POS. Output of the actual position.
→ Select SELEC . The selection is marked by a filled circle .
→ / Select CMD. Output of the set-point position.
→ Select SELEC . The selection is marked by a filled circle .
english
Type 8692, 8693 REV.2
Auxiliary functions
→
→
→
→ / Select PV. Output of the process actual value. ( For Type 8693 only, process control)
→ Select SELEC . The selection is marked by a filled circle .
→ / Select SP. ( For Type 8693 only (process control)
→ Select SELEC . Output of the process set-point value.
→ / Select OUT.type. Selection of the standard signal.
→ Select ENTER and configure the standard signal.
→ / Select standard signal .
Select SELECT . The selection is marked by a filled circle .
Select EXIT and return to the OUT.type menu.
Select EXIT and return to the OUT ANALOG menu.
You have configured the analog output.
16.1.16.2.
The following description is valid for both digital outputs OUT BIN 1 and OUT BIN 2 , as the operation in the menu is identical.
The digital outputs 1 and 2 can be used for one of the following outputs:
POS.Dev
Remote
Exceeding the permitted control deviation
POS.Lim-1/2 Current position with respect to a specified limit position (> or <)
Safepos
ERR.PV
Actuator in safety position
ERR.SP/CMD
Sensor break (SP = process set-point value, CMD = set-point value position)
Sensor break (process actual value). Available for Type 8693 only.
Operating state (AUTOMATIC / MANUAL)
Tune.Status
Status X.TUNE
(process optimization)
DIAG.State-1/2
Diagnostic output (option)
Overview of possible outputs and associated switching signals:
Menu option
POS.Dev
POS.Lim-1/2
Safepos
ERR.SP/CMD
Switching signal
0
1
0
1
1
0
0
Description
Control deviation is within the set limit.
Control deviation is outside the set limit.
Actual position is above the limit position.
Actual position is below the limit position.
Actuator is not in the safety position.
Actuator is in the safety position.
No sensor break available.
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Auxiliary functions
Menu option
ERR.PV
Switching signal
1
Description
Sensor break available.
Remote
Tune.Status
DIAG.State-1/2
Table 30:
0
1
0
1
0/1 alternating
(10 s)
0
1
Appliance is the AUTOMATIC operating state.
Appliance is the MANUAL operating state.
The X.TUNE
function is currently not running.
The
The
X.TUNE
X.TUNE
function is currently running.
function was stopped during execution by a fault.
No diagnostic message available for the selected status signals.
Diagnostic message available for the selected status signals.
OUT BIN 1/2; Possible outputs and associated switching signals
Switching signal
0
1
Table 31: normally open
0 V
24 V
OUT BIN 1/2; switching statuses
Switching statuses normally closed
24 V
0 V
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Auxiliary functions
16.1.16.3.
Open the submenus as follows:
→ Press MENU for 3 s. Switching from process level setting level.
→ / Select OUTPUT (to do this, the auxiliary function must be incorporated into the main menu).
→ Select ENTER . The outputs are displayed.
→ / Select OUT BIN1/2
→ Select ENTER . Submenu options of OUT BIN 1/2 are displayed.
You have opened the submenus.
• POS.Dev
- Alarm output for excessively large control deviation of the position controller
• POS.Lim-1/2 - Output of the current position with respect to a specified limit position
Set the suboptions OUT BIN 1 and OUT BIN 2 as follows:
POS.Dev
- Alarm output for excessively large control deviation of the position controller:
→ / Select POS.Dev
→ Select SELEC . The input screen for the limit value (Deviation:) is opened.
→ / + Increase value
- Reduce value
Enter limit value for permitted control deviation.
Adjustment range: 1...50 % (must not be less than the dead band).
→ Select OK . Acknowledgment and simultaneous return to the OUT BIN 1/2 menu.
Then set the required switching status in the OUT.type
submenu.
POS.Lim-1/2 - Output of the current position with respect to a specified limit position:
→ / Select POS.Lim-1/2
→ Select SELEC . The input screen for the limit position (Limit:) is opened.
→ / + Increase value
- Reduce value
Enter limit position.
Adjustment range: 0...100 %.
→ Select OK . Acknowledgment and simultaneous return to the OUT BIN 1/2 menu.
Then set the required switching status in the OUT.type
submenu.
You have set the submenus.
• Safepos - Outputting the message: Actuator in safety position
• ERR.SP/CMD - Outputting the message: Sensor break for process set-point value/set-point position
Only available if the function in the SIG.ERR
menu has been activated ( SIG.ERR
→ SP/CMD input → Error on).
See chapter
„16.1.14 SIG.ERROR – Configuration of signal level fault detection“
.
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• ERR.PV - Outputting the message: Sensor break for process actual value (for Type 8693 only)
Only available if the function in the SIG.ERR
menu has been activated ( SIG.ERR
→ PV Input → Error on).
See chapter
„16.1.14 SIG.ERROR – Configuration of signal level fault detection“
.
• Remote - Output AUTOMATIC / MANUAL operating state
• Tune.Status - Output TUNE (process optimization)
Specify the output as follows:
→ / Select suboptions . (Safepos, ERR.SP/CMD, ERR.PV, Remote or Tune.Status).
→ Select SELEC . Acknowledge submenu option as output function for the digital output. The selection is marked by a filled circle .
Then set the required switching status in the OUT.type
submenu.
You have specified the output.
• DIAG.State-1/2 - Diagnostic output (option)
Outputting the message: Diagnostic message from selected status signal
Description see chapter „16.2.4 DIAGNOSE – Menu for monitoring valves (option)“ .
Enter the OUT.type
as follows:
→ / Select DIAG.State-1/2 .
→ Select SELEC . The status signals, which can be activated for outputting the message, are displayed.
→ / Select status signal . Select the status signal which is to be assigned to the diagnostic output.
→ Select SELEC . Activate the selection by checking the box or deactivate it by unchecking the box .
→ If required, activate further status signals for the diagnostic output by pressing the / and keys.
SELEC
→ Select EXIT . Acknowledgment and simultaneous return to the OUT BIN 1/2 menu.
Then set the required switching status in the OUT.type
submenu.
You have input OUT.type
.
116
• OUT.type
- Setting the switching status
In addition to selecting the output, the switching status required for the digital output must be input.
See „Table 32: OUT BIN 1/2; switching statuses“.
Enter the OUT.type
as follows:
→ / Select OUT.type
.
→ Select SELEC . The switching statuses normally open and normally closed are displayed.
→ / Select switching status.
→ Select SELEC . The selection is marked by a filled circle .
→
→
Select EXIT . Acknowledgment and simultaneous return to the OUT BIN 1/2 menu.
Select EXIT . Acknowledgment and simultaneous return to the OUTPUT menu.
→ Select EXIT . Acknowledgment and simultaneous return to the main menu (MAIN). english
Type 8692, 8693 REV.2
Auxiliary functions
→ Select EXIT . Switching from setting level process level.
You have input OUT.type
.
Switching signal
0
1
Table 32: normally open
0 V
24 V
OUT BIN 1/2; switching statuses
Switching statuses normally closed
24 V
0 V
The changed data is saved in the memory (EEPROM) only when there is a switch to the process level, by leaving the main menu (MAIN) using the left selection key EXIT .
16.1.17
The following values can be manually calibrated with this function:
• Position actual value calibr. POS
(0...100 %)
• Set-point position calibr. INP
(4...20 mA, 0...20 mA, 0...5 V, 0...10 V)
For the calibration process the signal type is displayed which was specified for the input signal.
See chapter „14.2 INPUT - Setting the input signal“.
Type 8693:
The following values can be calibrated only for Type 8693 and activated process controller ( P.CONTROL
).
• Process set-point value calibr. SP
(4...20 mA, 0...20 mA, 0...5 V, 0...10 V)
For the calibration process the signal type is displayed which was specified for the input signal.
See chapter „14.2 INPUT - Setting the input signal“.
The calibration of the process set-point value is only possible if the external set-point value default was selected when setting up the process controller.
See chapter „15.2.3 SP-INPUT – Type of the set-point value default (internal or external)“
.
Setting: P.CONTROL
→ SETUP → SP-INPUT → external
• Process actual value calibr. PV
(4...20 mA or *C)
For the calibration process the signal type is displayed which was specified for the process actual value when setting up the process controller.
See chapter „15.2.1 PV-INPUT – Specifying signal type for the process actual value“.
The frequency signal type (flow rate) cannot be calibrated.
If the frequency was set when setting up the process controller ( P.CONTROL
→ SETUP →
PV-INPUT → Frequency) , the calibr. PV menu option is hidden.
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16.1.17.1.
Calibrate CAL.USER
as follows:
→ Press MENU for 3 s. Switching from process level setting level.
→ / Select CAL.USER
. (To do this, the auxiliary function must be incorporated into the main menu).
→ Select ENTER . The submenu options are displayed.
calibr. POS - Calibration of the position actual value (0...100 %):
→ / Select calibr.POS
.
→ Select ENTER . The menu options for the minimum and the maximum position actual values are displayed.
→ / Select POS. pMin .
→ Select INPUT . The input screen for the lower value ( POS.lower
) is opened.
→ / Select OPN open more
CLS close more. Approach minimum position of the valve.
→ Select OK . Transfer and simultaneous return to the calibr.POS
menu.
→ / Select POS. pMax.
→ Select INPUT . The input screen for the upper value ( POS.upper
) is opened.
→ / Select OPN open more
CLS close more. Approach maximum position of the valve.
→
→
Select OK . Transfer and simultaneous return to the calibr.POS
menu.
Select EXIT . Acknowledgment and simultaneous return to the CAL.USER
menu.
calibr. INP - Calibration of the set-point position (4...20 mA, 0...20 mA, 0...5 V, 0...10 V):
→ / Select calibr.INP
.
→ Select ENTER . The menu options for the minimum and maximum value of the input signal are displayed.
→ / Select INP 0 mA (4mA/0V) . The minimum value for the input signal is displayed.
→ Apply the minimum value to the input.
→ Select OK . Transfer and simultaneous return to the calibr.INP
menu.
→ / Select INP 20 mA (5V/10V) . The maximum value for the input signal is displayed.
→ Apply the maximum value to the input.
→ Select OK . Transfer and simultaneous return to the calibr.INP
menu.
→
→
→
Select EXIT . Acknowledgment and simultaneous return to the CAL.USER
menu.
Select EXIT . Acknowledgment and simultaneous return to the main menu (MAIN).
Select EXIT . Switching from setting level process level.
You have calibrated CAL.USER
.
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Type 8692, 8693 REV.2
Auxiliary functions
16.1.17.2.
Calibrate CAL.USER
as follows:
→ Press MENU for 3 s. Switching from process level setting level.
→ / Select CAL.USER
. (To do this, the auxiliary function must be incorporated into the main menu).
→ Select ENTER . The submenu options are displayed.
calibr. SP - Calibration of the process set-point value:
→ / Select calibr. SP .
→ Select ENTER . The menu options for the minimum and the maximum process set-point value are displayed.
→ / Select SP 0 mA (4mA/0V) . The minimum value for the input signal is displayed.
→ Apply the minimum value to the input.
→ Select OK . Transfer and simultaneous return to the calibr.SP
menu.
→ / Select SP 20 mA (5V/10V) . The maximum value for the input signal is displayed.
→ Apply the maximum value to the input.
→
→
Select OK . Transfer and simultaneous return to the calibr.SP
menu.
Select EXIT . Acknowledgment and simultaneous return to the CAL.USER
menu.
calibr. PV - Calibration of the process actual value for input signal 4...20 mA:
→ / Select calibr. PV.
→ Select ENTER . The menu options for the minimum and the maximum process actual value are displayed.
→ / Select PV 4 mA . The minimum value for the input signal is displayed.
→ Apply the minimum value to the input.
→ Select OK . Transfer and simultaneous return to the calibr.PV
menu.
→ / Select PV 20mA . The maximum value for the input signal is displayed.
→ Apply the maximum value to the input.
→ Select OK . Transfer and simultaneous return to the calibr.PV
menu.
→ Select EXIT . Acknowledgment and simultaneous return to the CAL.USER
menu.
calibr. PV - Calibration of the process actual value for input signal Pt 100:
→ / Select calibr.PV
.
→ Select ENTER . The input screen for calibration of the temperature is opened.
→ / <- Select decimal point and + select increase number.
Input the current temperature.
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→
→
→
Select OK . Transfer and simultaneous return to the CAL.USER
menu.
Select EXIT . Acknowledgment and simultaneous return to the main menu (MAIN).
Select EXIT . Switching from setting level process level.
You have calibrated CAL.USER
.
16.1.17.3.
Reset the settings as follows:
→ Press MENU for 3 s. Switching from process level setting level.
→ / Select CAL.USER
. (To do this, the auxiliary function must be incorporated into the main menu).
→ Select ENTER . The submenu options are displayed.
→ / Select copy FACT->USER .
→ Hold down RUN as long as countdown (5 ...) is running.
The settings of CAL.USER
are reset to the factory settings.
→
→
Select EXIT . Acknowledgment and simultaneous return to the main menu (MAIN).
Select EXIT . Switching from setting level process level.
You have reset the settings.
The factory calibration is re-activated by deactivating CAL.USER
, by removing the auxiliary function from the main menu (MAIN).
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Auxiliary functions
16.1.18
This function allows all settings implemented by the user to be reset to the delivery status.
All EEPROM parameters with the exception of the calibration values are reset to default values. Then a hardware reset is implemented.
Reset the settings to factory setting as follows:
→ Press MENU for 3 s. Switching from process level setting level.
→ / Select menu).
SET.FACTORY
. (To do this, the auxiliary function must be incorporated into the main
→ Press RUN for 3 s (until progress bar is closed)
“factory reset” is shown. Reset is implemented.
→ Select EXIT . Switching from setting level process level.
You have reset the settings.
To adjust Type 8692, 8693 to the operating parameters, re-implement self-parameterization of the position controller ( X.TUNE
).
16.2
Set the service interface as follow s:
→ Press MENU for 3 s. Switching from process level setting level.
→ / Select SERVICE.BUES
.
→ Select ENTER . The possible BUES are displayed.
→ / Select baud rate .
→ Select ENTER . The possible baud rates are displayed.
/ Select baud rate 1000 kbit/s
500 kbit/s
250 kbit/s
125 kbit/s
50 kbit/s .
→ Select SELECT . The selected baud rate is now marked by a filled circle .
→ / Select address .
→ Select ENTER . The possible addresses are displayed.
→ / Select (0 - 127) .
→
→
Select SELECT . The selected address is now marked by a filled circle .
Select EXIT . Switching from setting level process level.
You have set the service interface.
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122
16.2.1
This function can be used to individually set the display.
• In DISP.ITEMS
the display of the process level can be individually set.
To do this, further menu options can be activated for the display of the process level. POS and CMD are activated in the as-delivered state.
• In START-UP.ITEM one of the activated menu options is specified as a start display after a restart.
• The type of display is selected via DISP.MODE
. normal = black font on light background.
inverse = white font on dark background.
• DISP.LIGHT
is used to define the background lighting of the display. on = Background lighting on.
off = Background lighting off.
user active = Background lighting switches off after 10 seconds with no user interaction. If a key is pressed again, the background lighting goes on again.
Activate the menu displays for displaying the process level as follows:
→ Press MENU for 3 s. Switching from process level setting level.
→ / Select ADD.FUNCTION
.
→ Select ENTER . The possible auxiliary functions are displayed.
→ / Select EXTRAS .
→ Select ENTER .
Activate the EXTRAS auxiliary function by checking the box and transfer into the main menu.
→ Select EXIT . Return to the main menu (MAIN).
→ / Select EXTRAS .
→ Select ENTER . The submenus of EXTRAS are displayed.
→ / Select DIP.ITEMS
.
→ Select ENTER .
The possible menu options are displayed.
POS, CMD, CMDIPOS, CMD/POS(t), CLOCK, INPUT, TEMP, X.TUNE.
Additionally for process controller Type 8693:
PV, SP, SPlPV, SP/PV(t), P.TUNE, P.LIN.
→ / Select required menu options.
→ Select SELEC . Activate the selection by checking the box or deactivate it by unchecking the box .
→
→
→
Select EXIT . Return to the EXTRAS menu.
Select EXIT . Return to the main menu (MAIN).
Select EXIT . Switching from setting level process level.
You have activated the menu display.
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Type 8692, 8693 REV.2
Auxiliary functions
The activated menu options are now displayed on the process level display.
Use the arrow keys to switch between the displays.
Each menu option which can be selected can also be deactivated so that it is not indicated on the process level display.
However, there must be at least one menu option available which can be indicated on the display.
If nothing was selected, the POS menu option is automatically activated.
START-UP.ITEM
- Specifying menu option for the start display:
EXTRAS → START-UP.ITEM
/ Select menu option and specify with SELEC .
The menu option for the start display is marked by the filled circle .
The detailed procedure can be found in the extensive menu description for DISP.ITEMS
. The START-UP.
ITEM and DISP.ITEMS
menus are set in the same way.
DISP.MODE
- Select type of display
(black font on light background or white font on dark background):
Select the type of display as follows:
→ Press MENU for 3 s. Switching from process level setting level.
→ / Select ADD.FUNCTION
.
→ Select ENTER . The possible auxiliary functions are displayed.
→ / Select EXTRAS .
→ Select ENTER .
Activate the EXTRAS auxiliary function by checking the box and transfer into the main menu.
→ Select EXIT . Return to the main menu (MAIN).
→ / Select DISP.MODE
.
→ Select ENTER .
The possible menu options for the type of display are shown. normal = black font on light background inverse = white font on dark background
→ / Select the type of display.
→ Select SELEC .
The selection is marked by a filled circle .
→
→
→
Select EXIT . Return to the EXTRAS menu.
Select EXIT . Return to the main menu (MAIN).
Select EXIT . Switching from setting level process level.
You have set the type of display.
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Auxiliary functions
DISP.LIGHT
- Define background lighting for display:
EXTRAS → DISP.LIGHT
/ Select background lighting and specify with SELEC .
The menu option for the background lighting is marked by the filled circle .
on = Background lighting on.
off = Background lighting off.
user active = Background lighting switches off after 10 seconds with no user interaction. If a key is pressed again, the background lighting goes on again.
The detailed procedure can be found in the extensive menu description for DISP.MODE
. The DISP.LIGHT and DISP.MODE
menus are set in the same way.
16.2.2
This function is of no importance to the operator of Type 8692, 8693. It is for internal use only.
16.2.3
This function can be used to simulate set-point value, process and process valve independently of each other.
Restarting the device deactivates the simulation.
The settings of SIGNAL.form
, x.SIM
and p.SIM
are reset to the factory setting.
16.2.3.1.
The settings to simulate the set-point value are made in the SIGNAL.sim
menu.
Activation of the simulation:
In the SIGNAL.form
submenu by selecting one of the following waveforms
Sine wave Sine wave
Square
Triangle
Mixed
Square wave
Triangle wave
Single cycle of an alternating signal sequence.
Then the selection is set to External (set-point value simulation inactive).
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Type 8692, 8693 REV.2
Auxiliary functions
The following parameters can be set for the selected waveform.
Menu option
Parameter setting Schematic representation with sine wave
Offset (Zero offset as %)
70 %
50 %
Offset as % t
Amplitude (Amplitude as %)
70 %
50 %
Amplitude as % t
Periode (Cycle duration in s)
Period in s
70 %
50 % t
Table 33: SIGNAL.sim; parameter settings for set-point value simulation
Deactivation of the simulation: In the SIGNAL.form
submenu
Selection External = set-point value simulation inactive
(corresponds to the factory setting in the as-delivered state)
Activate and parameterize the set-point value simulation as follows:
→ Press MENU for 3 s. Switching from process level setting level.
→ / Select SIMULATION . (To do this, the auxiliary function must be incorporated into the main menu).
→ Select ENTER . The submenu for setting the simulation is displayed.
→ / Select SIGNAL.sim
.
→ Select ENTER .
The submenu for activating and parameterizing the set-point value simulation is displayed.
→ Select / required menu option
Selection simulation.
External = simulation inactive.
Selection Sine wave / Square / Triangle / Mixed = specify the waveform as well as activation of the
→
→
Select SELEC . The selection is marked by a filled circle .
EXIT Return to the SIGNAL.sim
menu.
Setting the parameters for simulation of the set-point value:
→ / Select offset (zero offset as %).
→ Select INPUT . The input screen for specifying the offset is opened.
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Auxiliary functions
→ / + Increase value
<- Select decimal point and enter value.
→ Select OK . Transfer and simultaneous return to the SIGNAL.sim
menu.
→ / Select amplitude (amplitude as %).
→ Select INPUT . The input screen for specifying the amplitude is opened.
→ / + Increase value
<- Select decimal point and enter value.
→ Select OK . Transfer and simultaneous return to the SIGNAL.sim
menu.
→ / Select period (period duration in seconds).
→ Select INPUT . The input screen for specifying the cycle duration is opened.
→ / + Increase value
<- Select decimal point and enter value.
→
→
Select OK . Transfer and simultaneous return to the SIGNAL.sim
menu.
Select EXIT . Return to the SIMULATION menu.
For simulation of process and process valve:
→ / Select CONTROL.sim
.
For a description see chapter„16.2.3.2. CONTROL.sim – Simulation of the process and process valve“.
Leaving the SIMULATION menu:
→ Select EXIT . Return to the main menu (MAIN).
→ Select EXIT . Switching from setting level process level.
You have activated and parameterized the set-point value simulation.
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Auxiliary functions
16.2.3.2.
The settings to simulate the process and the process valve are made in the CONTROL.sim
menu.
Settings
Type of simulation: x.SIM
p.SIM
Simulation of the process valve.
Simulation of the process.
Parameterization of the process:
SIM.Gain
SIM.Delay
Specify amplification factor.
Specify time constant in seconds.
Example of a simulated process:
Effect of parameterization on the behavior of the PT1 element
SIM.Delay (Time constant [T] in s)
SIM.Gain
(Amplification factor [Kp])
5
Output of the simulated process y
63 %
1
Input of the simulated process u t
Figure 49: Example of a simulated process. Behavior of the PT1 element
Simulate the process and process valve as follows.
→ Press MENU for 3 s. Switching from process level setting level.
→ / Select SIMULATION . (To do this, the auxiliary function must be incorporated into the main menu).
→ Select ENTER . The submenu for setting the simulation is displayed.
→ / Select CONTROL.sim
.
→ Select ENTER .
The submenu for activating and parameterizing the process and process valve simulation is displayed.
→ / Select required simulation.
Selection x.SIM
= simulation process.
Selection p.SIM
= simulation process valve.
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Type 8692, 8693 REV.2
Auxiliary functions
→ Select SELEC . Activate the selection by checking the box or deactivate it by unchecking the box .
→
→
→
Setting the parameters for simulation of the process and/or the process valve:
→ / Select SIM.Gain
. (Amplification factor).
→ Select INPUT . The input screen for specifying the amplification factor is opened.
→ / + Increase value
<- Select decimal point and enter value.
→ Select OK . Transfer and simultaneous return to the CONTROL.sim
menu.
→ / Select SIM.Delay
(period duration in seconds).
→ Select INPUT . The input screen for specifying the cycle duration is opened.
→ / + Increase value
<- Select decimal point and enter value.
→ Select OK . Transfer and simultaneous return to the CONTROL.sim
menu.
Select EXIT . Return to the SIMULATION menu.
Select EXIT . Return to the main menu (MAIN).
Select EXIT . Switching from setting level process level.
You have simulated the process and process valve.
16.2.4
The optional function DIAGNOSE can be used to monitor the state of the valve. If there are deviations from the set-point state, messages are output according to NE 107.
Example of the output of a diagnostic message:
Status signal
POS 0.0
Symbol for:
Diagnostics active
MENU CMD POS MANU
Figure 50: Example of a diagnostic message english
Type 8692, 8693 REV.2
Auxiliary functions
16.2.4.1.
To ensure that the DIAGNOSE menu can be set, it must first be activated in the main menu of the setting level
(MAIN) via ADD.FUNCTION
. See chapter „16.1 Activating and deactivating auxiliary functions“
The active diagnostics is indicated on the display of the process level with a check mark
.
16.2.4.2.
The DIAGNOSE main menu consists of the following submenus.
D.MSG
(Diagnostic messages) list of all diagnostic messages.
D I A G N O S E
>> D.MSG <<
CONFIG.MSG
ADD.DIAGNOSE
RESET.HISTORY
EXIT 29-1 ENTER
CONFIG.MSG
ADD.DIAGNOSE
RESET.HISTORY
Assignment of status signals for different diag nostic messages according to NE 107 (NE = NAMUR recommendation).
Activation of diagnostic functions by incorporation into the
DIAGNOSE main menu.
Deletion of the history entries of all diagnostic functions.
The menu is only displayed if the CLOCK function has been selected on the process level.
Table 34: DIAGNOSE; main menu
The description can be found in Chapter
„16.2.4.4. Description of the DIAGNOSE main menu“
.
16.2.4.3.
In the ADD.DIAGNOSE
menu several diagnostic functions are activated and incorporated into the
DIAGNOSE main menu.
Activatable diagnostic functions:
HISTOGRAM
Graphical display of the dwell time density and movement range.
SERVICE.TIME
Operating-hours counter
TRAVEL.ACCU
Path accumulator
CYCLE.COUNTER
Direction reversal counter
TEMP.CHECK
Temperature monitor
STROKE.CHECK
Monitoring of the mechanical end positions in the valve
PV.MONITOR
Process actual value monitoring (for Type 8693 only, process control)
POS.MONITOR
Position monitoring
Table 35: ADD.DIAGNOSE; overview of diagnostic functions
The exact description can be found in chapter „16.2.4.5. Description of the diagnostic functions“.
Activate the diagnostic functions as follows:
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Auxiliary functions
→ Press MENU for 3 s. Switching from process level setting level.
→ / Select DIAGNOSE . (To do this, the DIAGNOSE vated by incorporation into the main menu (MAIN)).
auxiliary function must already have been acti-
→ Select ENTER . The submenus are displayed.
→ / Select ADD.DIAGNOSE
.
→ Select ENTER .
The other diagnostic functions are displayed.
→ / Select required diagnostic function
→ Select ENTER . The required diagnostic function is now marked by a cross .
Either:
→ / Select other diagnostic functions and select ENTER .
Keep repeating until all required diagnostic functions have been marked with a cross .
Or:
→ Select EXIT .
Acknowledgment and simultaneous return to the DIAGNOSE main menu.
The marked diagnostic functions have been activated and the setting menus are now in the DIAGNOSE main menu.
You have activated the diagnostic functions.
16.2.4.4.
1.
D.MSG
– Diagnostic messages
All generated diagnostic messages are listed in the D.MSG
menu where they can be viewed and deleted. The status signal, which is assigned to the diagnostic message, is indicated by a symbol.
Display example of a list with diagnostic messages
Diagnostic message
>> D.MSG <<
SERVICE.TIME
TRAVEL.ACCU
PV.MONITOR
EXIT 29-1-1 ENTER
Symbol for the assigned status signal
Display example of the description text of a diagnostic message
travel accu exceeded
EXIT ––– CLEAR
130
View and delete diagnostic messages as follows:
→ / Select D.MSG
.
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Type 8692, 8693 REV.2
Auxiliary functions
→ Select ENTER . All generated diagnostic messages are displayed.
→ / Select required message
→ Select ENTER .
Opening the diagnostic message. The description text is displayed (in English).
→ Select EXIT .
Closing the diagnostic message and return to D.MSG.
Or:
→ Hold down CLEAR as long as countdown (5 ...) is running.
Deleting the diagnostic message and return to D.MSG.
→ Select EXIT .
Return to the DIAGNOSE main menu.
You have viewed and deleted the diagnostic functions.
2.
CONFIG.MSG
– Assignment of status signals according to NE 107 (NAMUR recommendation)
The status signals of the diagnostic messages can be changed in the CONFIG.MSG
menu.
The menu indicates only diagnostic functions which can output a message and which have already been activated in the ADD.DIAGNOSE
menu.
The status signals have different priorities.
If several diagnostic messages are available with different status signals, the status signal with the highest priority is shown on the display.
Overview of the status signals according to NE 107 (NE = NAMUR recommendation):
Priority
Status signal
1 2 3 4
Meaning
Table 36:
Failure Function check
CONFIG.MSG; overview of status signals
Out of specification Maintenance required
The following status signals have been preset at the factory for the messages of the diagnostic functions:
Diagnostic function Status signal according to NE 107 Signal miniature
Priority
SERVICE.TIME
TRAVEL.ACCU
CYCLE.COUNTER
TEMP.CHECK
STROKE.CHECK
Maintenance required
Maintenance required
Maintenance required
Out of specification
Out of specification
4
4
4
3
3
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Auxiliary functions
PV.MONITOR
POS.MONITOR
Table 37:
Out of specification
Out of specification
CONFIG.MSG; factory setting (Default)
3
3
Assign the status signals as follows:
→ / Select CONFIG.MSG
.
→ Select ENTER . All activated diagnostic functions, which can output a message, are displayed.
→ / Select required message.
→ Select ENTER .
The list of possible status signals is displayed.
→ / Select required message.
→ Select SELEC .
The selected status signal is now marked by a filled circle .
→ Select EXIT . Acknowledgment and simultaneous return to the CONFIG.MSG
menu.
The status signal is now assigned to the diagnostic function.
→ Select EXIT . Return to the DIAGNOSE main menu.
You have assigned the status signals.
3.
ADD.DIAGNOSE
– Activation and deactivation of diagnostic functions
Diagnostic functions can be activated in this menu and incorporated into the DIAGNOSE main menu or already activated diagnostic functions can be deactivated again.
Activation of diagnostic functions:
For a description see chapter „16.2.4.3. Activation of diagnostic functions“.
Deactivation of diagnostic functions:
The procedure is the same as for activation. Only when the diagnostic functions are deactivated, is the cross after the diagnostic function removed again by pressing the ENTER key .
4.
RESET.HISTORY
– Deletion of the history entries of all diagnostic functions
Explanation of the history entries:
There is a history entry for each diagnostic message. This entry is assigned to the diagnostic function, which has actuated this message, and is saved there in the HISTORY submenu.
english
Type 8692, 8693 REV.2
Auxiliary functions
In the menu of some diagnostic functions there is a HISTORY submenu in which the history entries are saved.
RESET.HISTORY
is used to delete the entries of all HISTORY submenus.
Individual entries can be deleted in the HISTORY submenu of the particular diagnostic function.
See chapter „16.2.4.6. History entries in the HISTORY submenu“
.
Delete the history entries as follows:
→ / Select RESET.HISTORY
.
→ Hold down RUN as long as countdown (5 ...) is running.
All history entries are deleted.
→ Select EXIT . Return to the DIAGNOSE main menu.
You have deleted the history entries.
History entries are only created when the CLOCK function for the display has been activated on the process level.
Activating and setting CLOCK
see chapter „13.6.1 Setting date and time“.
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133
Type 8692, 8693 REV.2
Auxiliary functions
16.2.4.5.
HISTOGRAM
– Output of histograms
The HISTOGRAM menu is divided into 2 parts:
1.
Outputting the histograms for
POS class (dwell time density) and
DIR class (movement range)
2. List of the characteristic values for
CMD Set-point position valve actuator
POS Actual position valve actuator
DEV Deviation from POS to CMD
TEMP Temperature
SP Process set-point value
PV Process actual value
Display description of the histograms:
POS class
Duration of histogram recording
Largest dwell time density which occurred (tallest bar)
00 : 13 : 48
44
233 c M Path covered by the actuator
STOP POS class CLEAR
10 histogram bars, each of which represents 10 % of the total stroke:
Bar on left = class 1 (0–10 %)
Bar on right = class 10 (91–100 %)
DIR class
72
Duration of histogram recording
Most frequently occurring range between 2 changes in direction
Number of changes in direction 00 : 13 : 48
50
STOP DIR class CLEAR
Histogram bar for the range between two direction reversal points
Bar on left = class 1 (0–10 %)
Bar on right = class 10 (91–100 %)
134
POS class - Description of the histogram of the dwell time density
The histogram indicates how long the actuator has stopped in a specific position.
For this purpose the stroke range is divided into 10 classes.
The current position of one of the 10 classes is assigned to each scan time.
<10
%
Class 1
11 - 20
%
2
21 - 30
%
3
31 - 40
%
4
41 - 50
%
5
51 - 60
%
6
61 - 70
%
7
71 - 80
%
8
81 - 90
%
9
91 -
100 %
10
Figure 51: CMD class; position classes english
Type 8692, 8693 REV.2
Auxiliary functions
Explanation of the histogram in the example
Sinusoidal progression of the actuator position:
Position
100 %
0 %
Figure 52: Sinusoidal progression of the actuator position
Histogram of the sinusoidal progression of the actuator position:
Duration of histogram recording
Largest dwell time density which occurred (tallest bar)
Time [t]
Path covered by the actuator
10 : 34 : 00
30
10023 c
M
The histogram indicates how long the actuator has stopped in the particular position class.
The figure in the middle of the histogram indicates what percentage of time the actuator has spent in the position class with the largest dwell time density.
Conclusions to be drawn from the histogram about the behavior of the actuator:
The actuator spent approx. 30 % of its time in position class 1 (0–10 % of the total stroke) and approx. 30 % of its time in position class 10 (90–100 % of the total stroke).
For the remaining time the actuator was in a position between 11 % and 89 % of the total stroke.
Figure 53: POS class; histogram of the dwell time density for sinusoidal progression of the actuator position
The distribution of the histogram allows conclusions to be drawn about the design of the control valve. E.g. if the actuator is in the lower stroke range only, the valve has probably been designed too large.
DIR class - Description of the histogram of the movement range
The histogram indicates the movement ranges of the actuator between two direction reversal points.
For this purpose the movement range between two changes in direction is divided into 10 classes.
The current position of one of the 10 classes is assigned to each scan time.
0 - 10
%
Class 1
11 - 20
%
2
21 - 30
%
3
31 - 40
%
4
41 - 50
%
5
51 - 60
%
6
61 - 70
%
7
71 - 80
%
8
81 - 90
%
9
91 -
100 %
10
Figure 54: DIR class; change in direction classes
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Auxiliary functions
Explanation of the histogram in the example
Sinusoidal progression of the actuator position:
Position
100 %
0 %
Figure 55: Sinusoidal progression of the actuator position
Time [t]
Histogram of the sinusoidal progression of the actuator position:
Duration of histogram recording
00 : 13 : 48
100
Percentage of the change in direction class which occurred most frequently
Number of changes in direction
72
It can be seen in the histogram which change in direction class has the largest proportion of the total number of changes in direction.
The figure in the middle of the histogram indicates what percentage of all changes in direction is not applicable to the most frequent change in direction class.
Conclusion to be drawn from the histogram about the behavior of the actuator:
The actuator moved for all changes in direction in the change in direction class 10 (91 - 100 %)
Figure 56: DIR class; histogram of the dwell time density for sinusoidal progression of the actuator position
The histograms will only give correct information about the behavior of the actuator when the
X.TUNE
function required for the basic setting has been run.
Start, stop and delete the histograms as follows:
→ / Select HISTOGRAM .
(To do this, the HISTOGRAM function must be incorporated into the DIAGNOSE main menu.
See chapter „16.2.4.3. Activation of diagnostic functions“).
→ Select ENTER . The empty matrix of the POS class submenu (dwell time density) is displayed.
english
Type 8692, 8693 REV.2
Auxiliary functions
Starting histograms:
→ Hold down START * as long as countdown (5 ...) is running.
Both histograms ( POS class and DIR class ) are started.
→ / Change display view.
Selection options:
POS class (Histogram for the dwell time density),
DIR class (Histogram for the movement range),
SYSTEM DATA (list of the characteristic values).
Stopping histograms:
→ Hold down STOP * as long as countdown (5 ...) is running.
The recording of both histograms ( POS class and DIR class ) is stopped.
→ / Change display view.
Selection options:
POS class (Histogram for the dwell time density),
DIR class (Histogram for the movement range),
SYSTEM DATA (list of the characteristic values).
Deleting histograms:
→ Hold down CLEAR * as long as countdown (5 ...) is running.
Both histograms ( POS class and DIR class ) are deleted.
Return to the DIAGNOSE main menu:
→ / Select SYSTEM-DATA
→ Or select EXIT . Return to the DIAGNOSE main menu.
* The key functions START , STOP and CLEAR are available only in the display views of the histograms POS class and DIR class.
You have started, stopped and deleted the histograms.
SERVICE.TIME
– Operating-hours counter
The operating-hours counter records the time during which the device was switched on.
If the duty cycle reaches the specified time limit, a message is generated.
• To do this, a history entry is made in the HISTORY
submenu. For a description see „16.2.4.6. History entries in the HISTORY submenu“.
• The status signal, which is assigned to the message, is indicated at short intervals on the display.
See D.MSG
and CONFIG.MSG
in chapter 16.2.4.4 auf Seite 130.
Display SERVICE.TIME
LIMIT
NEXT.M
HISTORY
90d.
00h
89d.
23h
EXIT
Table 38:
Description of the functions
The interval for messages preset at the factory for 90 days can be changed in the LIMIT submenu.
After NEXT.M
the remaining time is displayed until the next message appears.
29-5-1 INPUT
The history entries of the last 3 messages can be viewed and deleted in the HISTORY submenu.
SERVICE.TIME; operating-hours counter
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Auxiliary functions
Specify the interval for outputting messages as follows:
→ / Select SERVICE.TIME
.
(To do this, the SERVICE.TIME function must be incorporated into the DIAGNOSE main menu.
See chapter„16.2.4.3. Activation of diagnostic functions“).
→ Select ENTER . The menu is displayed.
→ / Select LIMIT .
→ Select INPUT . The preset value is displayed.
→ / + Increase value
<- Changing the (time unit: d/h/m)
Setting interval for outputting the message.
→
→
Select OK . Return to the SERVICE.TIME
menu.
Select EXIT . Return to the DIAGNOSE main menu.
You have specified the interval for outputting messages.
TRAVEL.ACCU
– Path accumulator
The path accumulator records and adds up the path which the actuator piston covers. A movement of the actuator piston is detected when the position changes by at least 1 %.
The interval for outputting messages is specified by inputting a limit for the total number of piston movements.
• To do this, a history entry is made in the HISTORY
submenu. For a description see „16.2.4.6. History entries in the HISTORY submenu“.
• The status signal, which is assigned to the message, is indicated at short intervals on the display.
See D.MSG
and CONFIG.MSG
in chapter 16.2.4.4 auf Seite 130.
Display TRAVEL.ACCU
HUB
LIMIT
NEXT.M
HISTORY
EXIT
Table 39:
20.0 mm
1000000 cm
999954 cm
29-6-1 INPUT
Description of the functions
The HUB submenu specifies the total stroke of the actuator piston. The total stroke is automatically determined during the basic setting of the device (running X.TUNE) .
In the case of an analog position sensor, the total stroke must be input by pressing the INPUT key.
The interval for outputting the message can be changed in the LIMIT submenu. A piston movement which covers 10 km has been preset at the factory.
After NEXT.M
the remaining piston movement distance is displayed until the next message appears.
The history entries of the last 3 messages can be viewed and deleted in the HISTORY submenu.
TRAVEL.ACCU; path accumulator english
Type 8692, 8693 REV.2
Auxiliary functions
Specify the interval for outputting messages as follows:
→ / Select TRAVEL.ACCU
.
(To do this, the TRAVEL.ACCU function must be incorporated into the DIAGNOSE main menu.
See chapter „16.2.4.3. Activation of diagnostic functions“).
→ Select ENTER . The menu is displayed.
* Required for analog position sensor only (setting the HUB submenu)
→ / Select HUB .
→ Select INPUT *. The preset value is displayed.
→ / + Increase value
<- Changing the decimal point
Setting total stroke of the actuator piston.
→ / Select LIMIT .
→ Select INPUT *. The preset value is displayed.
→ / + Increase value
<- Changing the decimal point
Setting interval for outputting the message (limit for sum of the piston movement).
→
→
Select OK . Return to the TRAVEL.ACCU
menu.
Select EXIT . Return to the DIAGNOSE main menu.
You have specified the interval for outputting messages.
CYCLE.COUNTER
– Direction reversal counter
The direction reversal counter counts the number of changes in direction of the actuator piston. A change in direction is detected when the position of the actuator piston changes by at least 1 %.
The interval for outputting messages is specified by inputting a limit for the total number of changes in direction.
• To do this, a history entry is made in the HISTORY
submenu. For a description see „16.2.4.6. History entries in the HISTORY submenu“.
• The status signal, which is assigned to the message, is indicated at short intervals on the display.
See D.MSG
and CONFIG.MSG
in chapter 16.2.4.4 auf Seite 130.
Display CYCLE.COUNTER
LIMIT
NEXT.M
HISTORY
EXIT
Table 40:
1000000
999960
Description of the functions
The interval for outputting the message can be changed in the LIMIT submenu. 1 million changes in direction have been preset at the factory.
After NEXT.M
the remaining changes in direction are displayed until the next message appears.
29-7-1 INPUT
The history entries of the last 3 messages can be viewed and deleted in the HISTORY submenu.
SERVICE.TIME; operating-hours counter
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Type 8692, 8693 REV.2
Auxiliary functions
Specify the interval for outputting messages as follows:
→ / Select CYCLE.COUNTER
.
(To do this, the CYCLE.COUNTER function must be incorporated into the DIAGNOSE main menu.
See chapter „16.2.4.3. Activation of diagnostic functions“.)
→ Select ENTER . The menu is displayed.
→ / Select LIMIT .
→ Select INPUT . The preset value is displayed.
→ / + Increase value
<- Changing the decimal point
Setting interval for outputting the message (limited number of changes in direction).
→
→
Select OK . Return to the CYCLE.COUNTER
menu.
Select EXIT . Return to the DIAGNOSE main menu.
You have specified the interval for outputting messages.
TEMP.CHECK
– Temperature monitor
The temperature monitor checks whether the current temperature is within the specified temperature range.
The temperature range is specified by inputting a minimum and maximum temperature. If the temperature deviates from the specified range, a message is output.
• To do this, a history entry is made in the HISTORY
submenu. For a description see „16.2.4.6. History entries in the HISTORY submenu“.
• The status signal, which is assigned to the message, is indicated at short intervals on the display.
See D.MSG
and CONFIG.MSG
in chapter „16.2.4.4. Description of the DIAGNOSE main menu“ .
In addition to the monitor there is a temperature slave pointer. This indicates the lowest and highest of the measured temperature values. The slave pointer can be reset by pressing the CLEAR key.
Display
Table 41:
TEMP.CHECK
CURRENT
MAX
MIN
LIMIT
EXIT 29-8-1
LIMIT
HISTORY
EXIT 29-8-1
21.7 *C
21.7 *C
21.7 *C
ENTER
Description of the functions
CURRENT indicates the current temperature.
MAX indicates the highest temperature of the slave pointer
MIN indicates the lowest temperature of the slave pointer.
The permitted temperature range can be changed in the LIMIT submenu. A message is output if the temperature exceeds or drops below the permitted range. The temperature range has been preset at the factory from 0...60 °C.
The history entries of the last 3 messages can be viewed and deleted in the HISTORY
TEMP.CHECK; temperature range
submenu.
english
Type 8692, 8693 REV.2
Auxiliary functions
Specify the temperature limit for outputting messages as follows:
→ / Select TEMP.CHECK
.
(To do this, the TEMP.CHECK function must be incorporated into the DIAGNOSE main menu.
See chapter „16.2.4.3. Activation of diagnostic functions“.
→ Select ENTER . The menu is displayed.
→ / Select LIMIT .
→ Select ENTER .
The upper and lower temperature limit is displayed.
The upper limit TEMP.MAX
has already been selected.
→ Select INPUT . Open input screen for upper temperature limit.
→ / + Increase value
<- Changing the decimal point
Input upper temperature limit TEMP.MAX
.
→ Select OK . Acknowledge value.
→ / Select TEMP.MIN
.
→
→
→
→ Select INPUT . Open factory setting for lower temperature limit.
→ / + Increase value
<- Changing the decimal point
Input lower temperature limit TEMP.MIN
.
Select OK . Acknowledge value.
Select EXIT . Return to the TEMP.CHECK
menu.
Select EXIT . Return to the DIAGNOSE main menu.
You have specified the temperature limit for outputting messages.
STROKE.CHECK
– End position monitor
The STROKE.CHECK
function is used to monitor the physical end positions of the valve. In this way wear marks can be detected on the valve seat.
To do this, a tolerance band is specified for the lower end position (position 0 %) and for the upper end position
(position 100 %). If an end position exceeds or falls below the tolerance band, a message is output.
• To do this, a history entry is made in the HISTORY
submenu. For a description see „16.2.4.6. History entries in the HISTORY submenu“.
• The status signal, which is assigned to the message, is indicated at short intervals on the display.
See D.MSG
and CONFIG.MSG
in chapter 16.2.4.4 auf Seite 130.
In addition to the monitor there is an end position slave pointer. This indicates the minimum and maximum position of the determined end positions. The slave pointer can be reset by pressing the CLEAR key.
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Auxiliary functions
142
Display STROKE.CHECK
MAX
MIN
LIMIT
HISTORY
EXIT 29-9-1
67.6 %
30. 9 %
Table 42:
Description of the functions
MAX indicates the maximum position of the slave pointer
MIN indicates the minimum position of the slave pointer.
The tolerance band for the physical end positions can be set in the
LIMIT submenu. A message is output if the temperature exceeds or drops below the permitted range.
Example:
Input upper end position TOL MAX = 1 %
If the position is less than -1 %, a message is output
Input lower end position TOL ZERO = 1 %
If the position is greater than 101 %, a message is output
The history entries of the last 3 messages can be viewed and deleted in the HISTORY submenu.
STROKE.CHECK; end position monitor
If a stroke limit was set in the X.LIMIT
menu, the mechanical end position monitor has only limited relevance.
The end positions indicated on the process level under POS are not the physically caused end positions in this case. Therefore they cannot be compared with the end positions indicated in the
STROKE.CHECK
menu under MIN and MAX .
Specify the position limit for outputting messages as follows:
→ / Select STROKE.CHECK
.
(To do this, the STROKE.CHECK function must be incorporated into the DIAGNOSE main menu.
See chapter “„16.2.4.3. Activation of diagnostic functions“).
→ Select ENTER . The menus are displayed.
→ / Select LIMIT .
→ Select ENTER .
The submenus for inputting the lower and upper end position tolerance are displayed.
The submenu for inputting the lower end position tolerance ZERO.TOL
has already been selected.
→ Select INPUT . Open input screen for lower end position tolerance.
→ / + Increase value
<- Changing the decimal point
Input lower end position tolerance ZERO.TOL
.
→ Select OK . Acknowledge value.
→ / Select MAX.TOL
.
→ Select INPUT . Open input screen for lower end position tolerance.
→ / + Increase value
<- Changing the decimal point
Input upper end position tolerance MAX.TOL
.
→
→
Select OK . Acknowledge value.
Select EXIT . Return to the STROKE.CHECK
menu.
english
Type 8692, 8693 REV.2
Auxiliary functions
→ Select EXIT . Return to the DIAGNOSE main menu.
You have specified the position limit for outputting messages.
POS.MONITOR
–Position monitor
The POS.MONITOR
function monitors the current position of the actuator.
The tolerance band for the set-point value is specified in the DEADBAND submenu.
A period for alignment of the actual value with the set-point value is specified in the COMP.TIME
submenu
(compensation time).
The compensation time COMP.TIME
starts recording as soon as the set-point value is constant. When the compensation time has elapsed, monitoring starts.
If the control deviation (DEV) of the actual value is greater than the tolerance band of the set-point value during monitoring, a message is output.
• To do this, a history entry is made in the HISTORY
submenu. For a description see „16.2.4.6. History entries in the HISTORY submenu“.
• The status signal, which is assigned to the message, is indicated at short intervals on the display.
See D.MSG
and CONFIG.MSG
in chapter 16.2.4.4 auf Seite 130.
Display POS.MONITOR
DEADBAND
COMP.TIME
HISTORY
2.0 %
10.0 sec
Description of the functions
The tolerance band of the set-point value preset at the factory to 2 % can be changed in the DEADBAND submenu.
The compensation time is set in COMP.TIME
(compensation time).
The history entries of the last 3 messages can be viewed and deleted in the HISTORY submenu.
EXIT 29-11-1 INPUT
Table 43: POS.MONITOR; position monitor
Schematic representation
1.4
1.2
1
0.8
0.6
0.4
0.2
CMD
POS
DEV
DEADBAND
Key:
DEADBAND = adjustable tolerance band as %.
COMP.TIME
= adjustable time in seconds expected until the control deviation is compared with the tolerance band.
DEV = control deviation
0
0 1 2 3 4 5 6 7 8 9 10
COMP.TIME
Figure 57: POS.MONITOR; schematic representation of position monitor
143 english
Type 8692, 8693 REV.2
Auxiliary functions
Set the tolerance band and the compensation time as follows:
→ / Select POS.MONITOR
.
(To do this, the POS.MONITOR function must be incorporated into the DIAGNOSE main menu.
See chapter „16.2.4.3. Activation of diagnostic functions“).
→
→
Select ENTER . The menu is displayed. DEADBAND has already been selected.
Select INPUT . The preset value is displayed.
→ / + Increase value
<- Changing the decimal point
Input tolerance band.
→ Select OK . Acknowledge value.
→ / Select COMP.TIME
.
→ Select INPUT . The preset value is displayed.
→ / + Increase value
<- Changing the decimal point
Input compensation time.
→
→
Select OK . Return to the POS.MONITOR
menu.
Select EXIT . Return to the DIAGNOSE main menu.
You have specified the tolerance band and the compensation time .
PV.MONITOR
– Process monitor (for Type 8693 only)
The PV.MONITOR
function monitors the process actual value.
The operating menu is identical to the position monitor POS.MONITOR
described above.
In contrast, it is not the position of the actuator which is monitored here but the process.
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Auxiliary functions
16.2.4.6.
Each diagnostic function, which can output a message, has the HISTORY submenu.
When the diagnostic message is actuated, a history entry is created with date and value. The history entries of the respective diagnostic function can be viewed and deleted in the HISTORY submenu.
A maximum of three history entries are stored from each diagnostic message. If three history entries are already available when a message is actuated, the oldest history entry is deleted.
Example: History of the diagnostic function TRAVEL.ACCU
Description:
On the left of the display is the date and on the right the associated value.
Deleting the history:
Hold down the CLEAR key until the countdown (5...) is running.
The RESET.HISTORY
diagnostic menu can be used to jointly delete the histories of all diagnostic
functions. See chapter 16.2.4.4.
Delete the histories of a diagnostic function (example TRAVEL.ACCU
) as follows:
→ / Select TRAVEL.ACCU
.
→ Select ENTER . The menu is displayed.
→ / Select HISTORY .
→ Select INPUT . History entries with date and value are displayed.
→ Hold down CLEAR as long as countdown (5 ...) is running.
The histories of the TRAVEL.ACCU diagnostic function are deleted.
→
→
Select EXIT . Return to the TRAVEL.ACCU
menu.
Select EXIT . Return to the DIAGNOSE main menu.
You have deleted the histories of the diagnostic function.
History entries are only created when the CLOCK function for the display has been activated on the process level.
To receive correct history entries, date and time must be correct.
Date and time must be reset after a restart. Therefore, the device switches immediately and automatically to the corresponding menu after a restart.
Activating and setting CLOCK
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Auxiliary functions
146
16.3
This function is required for special requirements only.
For standard applications the X.TUNE function has been preset at the factory.
See chapter „14.3 X.TUNE – Automatic adjustment of the position controller“ .
For special requirements the X.TUNE
function, as described below, can be manually configured.
Open the menu for the manual configuration of X.TUNE
as follows:
→ Press MENU for 3 s. Switching from process level setting level.
→ / Select X.TUNE
.
→ Select RUN . Opening the Manual.TUNE
menu. The menu options for the manual configuration of
X.TUNE are displayed.
You have opened the menu for the manual configuration of X.TUNE
.
16.3.1
X.TUNE.CONFIG
Configuration of the X.TUNE
function
Specify which functions are to be executed when
X.TUNE
is running (automatic self-optimization).
M.TUNE.POS
M.TUNE.PWM
M.TUNE.AIR
Position of the end positions
Optimization of the PWM signals
Determination of the opening and closing times of the actuator
- Specify whether the pneumatic actuator has mechanical end positions.
- Manual specification of the end positions
If there are no mechanical end positions available, these are not approached by the X.TUNE
and must be manually specified.
Manual optimization of the PWM signals for control of the aeration valves and bleed valves.
For optimization the valves must be aerated and bled.
A progress bar on the display indicates the speed at which the valve is aerated or bled.
The setting is optimum when the progress bar moves as slowly as possible.
Continuous determination of the opening and closing times of the actuator.
16.3.1.1.
In this menu you can specify which functions are to be executed when the X.TUNE function is running automatically.
Specify the functions in X.TUNE.CONFIG
as follows:
→ / Select X.TUNE.CONFIG
.
→ Select ENTER .
The functions for automatic self-parameterization by X.TUNE are displayed.
→ / Select required function.
→ Select SELEC . Activate the function by checking the box .
english
Type 8692, 8693 REV.2
Auxiliary functions
→ Select required functions in succession using the arrow keys / and activate by checking the box .
→ Select EXIT . Return to the Manual.TUNE menu .
You have specified the functions in X.TUNE.CONFIG.
16.3.1.2.
In this menu you can specify whether the pneumatic actuator has mechanical end positions or not.
If there are no mechanical end positions available, these are not approached by the X.TUNE
and must be manually specified.
Set the end position as follows:
→ / Select M.TUNE.POS
.
→ Select ENTER .
The selection for
ACT.limit
= mechanical end positions available
ACT.nolimit
= mechanical end positions not available is displayed.
If mechanical end positions are available
→ / Select ACT.limit
.
→
→
Select SELEC . The selection is marked by a filled circle .
Select EXIT . Return to the Manual.TUNE menu .
If mechanical end positions are not available
→ / Select ACT.nolimit
.
→ Select SELEC . The CAL.POS
submenu for inputting the end positions is opened.
→ / Select POS.pMIN
.
→ Select INPUT . The input screen for the value of the lower end position is opened.
→ / OPN Increase value
CLS Changing the decimal point
Approach lower end position of the valve.
→
→
→
→ Select OK . Transfer and simultaneous return to the CAL.POS
menu.
→ / Select POS.pMAX
.
→ Select INPUT . The input screen for the value of the upper end position is opened.
→ / OPN Increase value
CLS Changing the decimal point
Approach upper end position of the valve.
Select OK . Transfer and simultaneous return to the CAL.POS
menu.
Select EXIT . Return to the M.TUNE.POS.
menu.
Select EXIT . Return to the Manual.TUNE
menu.
You have set the end position.
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Auxiliary functions
16.3.1.3.
In this menu the PWM signals for control of the aeration valves and bleed valves are manually optimized.
For optimization the actuator is aerated and bled. A progress bar on the display indicates the position of the actuator and the speed of aeration and deaeration.
The setting is optimum when the progress bar moves as slowly as possible.
WARNING!
Danger due to uncontrolled valve movement when the M.TUNE.PWM function is running.
When the M.TUNE.PWM
function is running under operating pressure, there is an acute risk of injury.
▶ Never run X.TUNE.PWM
while a process is running.
▶ Secure system against unintentional activation.
Optimize the PWM signals as follows:
→ / Select M.TUNE.PWM
.
→ Select ENTER .
The submenu is displayed. yB.min
= aeration valve y E.min
= bleed valve
→ / Select yB.min
. Submenu for setting the PWM signal for the aeration valve.
→ Select ENTER . The input screen for setting the PWM signal is opened.
The progress bar indicates the speed of aeration.
→ / + Increase speed
- Reduce speed
Minimize speed so that the progress bar moves as slowly as possible from left to right.
Note!
Do not minimize speed to such an extent that the progress bar remains in one position.
→ Select OK . Transfer and simultaneous return to the M.TUNE.PWM
menu.
→ / Select yE.min
. Submenu for setting the PWM signal for the bleed valve.
→ Select ENTER . The input screen for setting the PWM signal is opened.
The progress bar indicates the speed of deaeration.
→ / + Increase speed
- Reduce speed
Minimize speed so that the progress bar moves as slowly as possible from right to left.
Note!
Do not minimize speed to such an extent that the progress bar remains in one position.
→
→
Select OK . Transfer and simultaneous return to the M.TUNE.PWM
menu.
Select EXIT . Return to the Manual.TUNE
menu.
You have optimized the PWM signal.
english
Type 8692, 8693 REV.2
Auxiliary functions
16.3.1.4.
By running this function, the opening and closing times of the valve are determined continuously.
A change to the supply pressure will affect the aeration time which can be optimized in this way.
For the setting the effects, which a change to the supply pressure has on the aeration time, can be continu ously monitored via the M.TUNE.AIR
function.
Continuously determine the opening and closing times as follows:
→ Select / M.TUNE.AIR
.
→ Hold down RUN as long as countdown (5 ...) is running.
The aeration and deaeration times are displayed. time.open
= aeration time.close
= deaeration
Change the supply pressure to adjust the aeration time.
The changed aeration time is displayed continuously.
→ Select EXIT . Return to the Manual.TUNE
menu.
→
→
Select EXIT . Return to the main menu (MAIN).
Select EXIT . Switching from setting level process level.
You have continuously determined the opening and closing times.
english
149
Type 8692, 8693 REV.2
Access to the büS service interface
The büS service interface is located inside the device.
→ It can be accessed by removing the hood (transparent cover and housing jacket).
→ Ensure that a terminating resistor is used.
NOTE!
Connect the Micro-USB to the PC always via the büS adapter .
büS service interface
150
Figure 58: büS service interface
17.1
• Setting with the Bürkert Communicator PC software on the PC
This type of setting is possible for all device types and device variants.
To do this, the device must be connected using the USB-büS interface sets and the büS service interface.
The PC software Bürkert Communicator can be downloaded free of charge from the Bürkert homepage.
To do this, the USB büS interface set, available as an accessory, is required.
Communication is established by the büS service interface of the device („22 Accessories“)
Parameter
P.CONTROL
Process controller
Diagnostics Maintenance
P.TUNE
PQ.LIN
Table 44: Process controller level english
Type 8692, 8693 REV.2
Access to the büS service interface
Table 45:
Parameter
BUS.COMM
ADD.FUNCTION
CHARACT
CUTOFF
DIR.CMD
DIR.ACT
SPLTRNG
X.LIMIT
X.TIME
X.CONTROL
SAFEPOS
Position controller level
Position controller
Diagnostics
DIAGNOSE ON/OFF
CONFIG.MSG
ADD.DIAGNOSE
HISTOGRAM
SERVICE.TIME
TRAVEL.ACCU
CYCLE.COUNTER
TEMP.CHECK
STROKE.CHECK
PV.MONITOR
POS.MONITOR
Inputs/outputs
Table 46:
Parameter
INPUT
ADD.FUNCTION
SIG.ERROR
BINARY.IN
Inputs/outputs level
Maintenance
X.TUNE
Maintenance
CAL.USER
Industrial communication (with Ethernet device only)
Parameter
DNS compatible name*
MAC address
Static IP address
Network mask
Default gateway
Table 47:
* Only available with PROFINET.
Industrial communication level english
151
Table 48:
Maintenance
SIMULATION
BUES
General information level
General information
Type 8692, 8693 REV.2
Access to the büS service interface
152 english
Type 8692, 8693 REV.2
Operating structure and factory setting
The factory presets are highlighted in blue to the right of the menu in the operating structure. Examples:
/ Menu options activated or selected at the factory
/ Menu options not activated or selected at the factory
2 % , 10 sec , ... Values set at the factory
INPUT
BUS.COMM 3)
4-20 mA
0-20 mA
0-10 V
0-5 V
BUS FAIL
Baud rate 4)
SafePos off
SafePos on
1000 kbit/s
500 kbit/s
250 kbit/s
125 kbit/s
50 kbit/s
Address 4)
BueS-Mode 4)
(0 - 127)
CANopen
BueS
X.TUNE
Figure 59: Operating structure - 1
3) Only for field bus
4) Description büS
153 english
Type 8692, 8693 REV.2
Operating structure and factory setting
X.TUNE
Automatic X.TUNE
X.TUNE STARTED
Manual X.TUNE
X.TUNE.CONFIG
TUNE #0 INIT ...
X.TUNE.DBDx
X.TUNE.PARAx
X.TUNE.LEAKAGE
X.TUNE.Ypwm
X.TUNE.Yfric
X.TUNE.POS
ACT.limit
ACT.nolimit
X.TUNE.PWM
P.Q‘LIN X.TUNE.AIR
Figure 60: Operating structure - 2 yB.min
yE.min
time.open time.close
X.TUNE ready
POS.pMIN
POS.pMAX
TUNE.yB
TUNE.yE
154 english
Type 8692, 8693 REV.2
Operating structure and factory setting
P.Q‘LIN
P.TUNE
1)
1)
Q.LIN#0
CMD=0% starting process tune
Q.LIN#1
CMD=10% ...
identifying control process
ADD.FUNCTION
CHARACT
CUTOFF
DIR.CMD
DIR.ACT
SPLTRNG 2)
X.LIMIT
X.TIME
X.CONTROL
P.CONTROL 1)
SECURITY
SAFEPOS
SIG.ERROR 6)
BINARY.IN
OUTPUT 7)
CAL.USER
SET.FACTORY
EXTRAS
SERVICE
SIMULATION
DIAGNOSE
Activatable auxiliary functions
CHARACT
Figure 61: Operating structure - 3
SERVICE.BUES
Q.LIN ready calculating
PID parameters
1) Only process controller Type 8693
2) Only for position controller mode
6) Only for signal type 4...20 mA and Pt 100
7) Optional. The number of outputs varies depending on the variant.
english
TUNE ready
155
Type 8692, 8693 REV.2
Operating structure and factory setting
Activatable auxiliary functions
CHARACT linear
GP 1:25
GP 1:33
GP 1:50
GP 25:1
GP 33:1
GP 50:1
FREE
CUTOFF
DIR.CMD
DIR.ACT
SPLTRNG 2)
X.LIMIT
X.TIME
Min 0 %
Max 100 %
CUT-type 1)
0 %
100 %
Type PCO
Type XCO
Rise
Fall
Rise
Fall
Min 0 %
Max 100 %
0 %
100 %
Min 0 %
Max 100 %
0 %
100 %
T.open 1.0 sec
T.close 1.0 sec
1.0 sec
1.0 sec
156
X.CONTROL
Figure 62: Operating structure - 4
1) Only process controller Type 8693
2) Only for position controller mode english
Graph GRAPH y 0 –> 0 % y 5 –> 5 %
•
•
• y 100 –> 100 %
Type 8692, 8693 REV.2
Operating structure and factory setting
Activatable auxiliary functions
X.CONTROL
P.CONTROL 1)
SECURITY
DBND 1.0 %
KXopn 1
KXcls 1
KDopn 0
KDcls 0
YBfric 0
YEfric 0
0
0
0
0
1.0 %
1
1
PID.PARAMETER
DBND 1.0 %
KP 1.00
TN 999.9
TV 0.0
X0 0 %
FILTER 0
1.0 %
1.00
999.9 sec
0.0 sec
0 %
0
SETUP PV-INPUT
PV-SCALE
4-20 mA
Frequency
PT 100
PVmin 0.0
PVmax 100.0
K-Factor 9)
0.0 l/s
100.0 l/s
VALUE
TEACH-IN
1.0
SP-INPUT
TEACH-IN
Teach-in at work
Valve closing
–> filling VOLUME
Figure 63: Operating structure - 5
1) Only process controller Type 8693
157 english
Type 8692, 8693 REV.2
Operating structure and factory setting
Activatable auxiliary functions
SECURITY Access Code
SP-INPUT
SP-SCALE 10)
P.CO-INIT internal external
SPmin 0.0
SPmax 100.0
0.0 l/s
100.0 l/s
0000 bumpless standard zeroinit
CODE
MAIN
MANU/AUTO
ADDFUNCT
X.TUNE
P.Q‘LIN 1)
P.TUNE 1)
SAFEPOS
Figure 64: Operating structure - 6
158
1) Only process controller Type 8693
9) Only for signal type frequency (P.CONTROL → SETUP → PV-INPUT → frequency)
10) Only process controller Type 8693 and for external set-point value default (P.CONTROL → SETUP → SP-INPUT → external) english
Type 8692, 8693 REV.2
Operating structure and factory setting
Activatable auxiliary functions
SAFEPOS Safepos
0 %
SIG.ERROR 6) SP/CMD Input Error off
Error on
SAFEPOS
PV Input 1) Error off
Error on
SAFEPOS
SafePos off
SafePos on
SafePos off
SafePos on
BINARY.IN
OUTPUT 7)
SafePos
Manu/Auto
X.TUNE
X.CO/P.CO 1)
BIN.IN type
OUT ANALOG normally open normally closed
POS
CMD
PV 1)
SP 1)
OUT.type
4-20 mA
0-20 mA
0-10 V
0-5 V
CAL.USER
OUT BIN 1
Figure 65: Operating structure - 7
1) Only process controller Type 8693
6) Only for signal type 4...20 mA and Pt 100
7) Optional. The number of outputs varies depending on the variant.
english
159
Type 8692, 8693 REV.2
Operating structure and factory setting
OUT BIN 1 POS.Dev
POS.Lim-1
Safepos
ERR.SP/CMD 11)
ERR.PV 12)
Remote
Tune.Status
DIAG.State-1
Deviation 1.0 % 1.0 %
Limit 0.0 % 0 %
OUT.type
FAILURE
OUT SPEZ
FUNC.CHECK
MAINTENANCE normally open normally closed
Deviation 1.0 %
Limit 100.0 %
1.0 %
100 %
OUT BIN 2 POS.Dev
POS.Lim-2
Safepos
ERR.SP/CMD 11)
ERR.PV 12)
Remote
Tune.Status
DIAG.State-2
OUT.type
FAILURE
OUT SPEZ
FUNC.CHECK
MAINTENANCE normally open normally closed
CAL.USER
Figure 66: Operating structure - 8
160
11) Only if fault detection is activated for the input signal
(SIG.ERROR → SP/CMD Input or PV-Input → Error on)
12) Only process controller Type 8693 and if fault detection is activated for the input signal
(SIG.ERROR → SP/CMD Input or PV-Input → Error on) english
Type 8692, 8693 REV.2
Operating structure and factory setting
Activatable auxiliary functions
CAL.USER
calibr. POS calibr. INP 2) calibr. SP 10) calibr. PV 1)
POS.pMIN
POS.pMAX
x* x*
INP 4mA 0 13)
INP 20mA 0 13) x** x**
SP 4mA 0 13)
SP 20mA 0 13) x** x**
PV 4mA 0 14)
PV 20mA 0 14)
SET VALUE 15)
PT100: x** x** x**
CAL reset
* Value is set for X.TUNE (automatic or manual).
** Value is set by the manufacturer during device-specific calibration.
SET.FACTORY
SERVICE.BUES* copy FACT->USER factory reset
Baud rate
Address
1000 kbit/s
500 kbit/s
250 kbit/s
125 kbit/s
50 kbit/s
(0 - 127)
EXTRAS
Figure 67: Operating structure - 9
1) Only process controller Type 8693
2) Only for position controller mode
10) Only process controller Type 8693 and for external set-point value default (P.CONTROL → SETUP → SP-INPUT → external)
13) The signal type is displayed which is selected in the INPUT menu
14) Only for signal type 4...20 mA (P.CONTROL → SETUP → PV-INPUT → 4...20 mA)
15) Only for circuit with Pt 100 (P.CONTROL → SETUP → PV-INPUT → PT 100)
161 english
EXTRAS DISP.ITEMS
POS
CMD
CMD/POS
CMD/POS (t)
PV 1)
SP 1)
SP/PV 1)
SP/PV (t) 1)
CLOCK
INPUT 16)
TEMP
X.TUNE
P.TUNE 1)
P.LIN 1)
SERVICE START-UP.ITEMS
Figure 68: Operating structure - 10
Type 8692, 8693 REV.2
Operating structure and factory setting
162
1) Only process controller Type 8693
16) Not for field bus english
Type 8692, 8693 REV.2
Operating structure and factory setting
Activatable auxiliary functions
START-UP.ITEMS
DISP.MODE
DISP.LIGHT
POS
CMD
CMD/POS
CMD/POS (t)
PV 1)
SP 1)
SP/PV 1)
SP/PV (t) 1)
CLOCK
INPUT 16)
TEMP
X.TUNE
P.TUNE 1)
P.LIN 1) normal inverse on off user active
SERVICE
SIMULATION
Figure 69: Operating structure - 11
1) Only process controller Type 8693
16) Not for field bus english
163
Type 8692, 8693 REV.2
Operating structure and factory setting
Activatable auxiliary functions
SIMULATION SIGNAL.sim
DIAGNOSE
CONTROL.sim
D.MSG 17)
CONFIG.MSG
17)
SIGNAL.form
Offset
Amplitude
Period x.SIM
p.SIM
SIM.Gain
SIM.Delay
50.0 %
80.0 %
5.0 sec
1.0
1.0 sec
External
Sine wave
Square
Triangle
Mixed
SERVICE.TIME
TRAVEL.ACCU
CYCLE.COUNTER
TEMP.CHECK
STROKE.CHECK
PV.MONITOR 1)
POS.MONITOR
SERVICE.TIME
FAILURE
FUNC.CHECK
OUT.SPEZ
MAINTENANCE
ADD.DIAGNOSE
Figure 70: Operating structure - 12
TRAVEL.ACCU
164
1) Only process controller Type 8693
17) The submenu lists only the activated diagnostic functions english
Type 8692, 8693 REV.2
Operating structure and factory setting
ADD.DIAGNOSE
Figure 71: Operating structure - 13
1) Only process controller Type 8693
TRAVEL.ACCU
CYCLE.COUNTER
TEMP.CHECK
STROKE.CHECK
PV.MONITOR 1)
POS.MONITOR
FAILURE
FUNC.CHECK
OUT.SPEZ
MAINTENANCE
FAILURE
FUNC.CHECK
OUT.SPEZ
MAINTENANCE
FAILURE
FUNC.CHECK
OUT.SPEZ
MAINTENANCE
FAILURE
FUNC.CHECK
OUT.SPEZ
MAINTENANCE
FAILURE
FUNC.CHECK
OUT.SPEZ
MAINTENANCE
FAILURE
FUNC.CHECK
OUT.SPEZ
MAINTENANCE english
165
166
ADD.DIAGNOSE
RESET.HISTORY
HISTOGRAM
SERVICE.TIME
TRAVEL.ACCU
CYCLE.COUNTER
TEMP.CHECK
STROKE.CHECK
PV.MONITOR 1)
POS.MONITOR
Reset done
Activatable diagnostic functions
HISTOGRAM POS class
DIR class
SYSTEM DATA
SERVICE.TIME
TRAVEL.ACCU
CYCLE.COUNTER
LIMIT
NEXT M.
HISTORY
HUB
LIMIT
NEXT.M
HISTORY
LIMIT
NEXT.M
HISTORY
90d. 00h
20.0 mm
1000000 cm
1000000
TEMP.CHECK
Figure 72: Operating structure - 14
Type 8692, 8693 REV.2
Operating structure and factory setting english
Type 8692, 8693 REV.2
Operating structure and factory setting
Activatable diagnostic functions
TEMP.CHECK
STROKE.CHECK
POS.MONITOR
PV.MONITOR 1)
CURRENT
MAX
MIN
LIMIT
HISTORY
TEMP.MAX
TEMP.MIN
TEMP.MAX
TEMP.MIN
MAX
MIN
HISTORY
DEADBAND
COMP.TIME
HISTORY
2.0 %
10.0 sec
DEADBAND
COMP.TIME
HISTORY
2.0 %
10.0 sec
ZERO.TOL
MAX.TOL
ZERO
MAX
60.0 °C
0.0 °C
0.5 %
0.5 %
Figure 73: Operating structure - 15
1) Only process controller Type 8693 english
167
Type 8692, 8693 REV.2
EtherNet/IP, PROFINET and Modbus TCP
19.1
2
3 1
4
X6 - M12 circular connector, 4-pin
( operating voltage)
3 4
2 1
X7 - fieldbus connection M12
(2 port Ethernet switch)
168
Figure 74: Field bus connection
19.2
DANGER
Risk of injury due to electric shock.
▶ Before reaching into the system, switch off the power supply and secure to prevent reactivation.
▶ Observe the applicable accident prevention regulations 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 uncontrolled restart.
▶ Secure system against unintentional activation.
▶ Following installation, ensure a controlled restart.
Network speed
Auto negotiation
Switch function
Network diagnostics
MAC-ID
Device name Ethernet (factory settings)
10/100 Mbps
Yes
Yes
Yes, via fault telegram
Individual identification number, stored in the module and on the outside of the device (see type label)
Positioner / process controller (name can be changed) english
Type 8692, 8693 REV.2
EtherNet/IP, PROFINET and Modbus TCP
Configuration of several devices:
All devices are delivered with the same IP address. To ensure that the device can be identified for the configuration, the network may contain only 1 device which has not yet been configured.
▶ Connect the devices (Ethernet device) in succession, individually to the network and configure.
19.3
PROFINET IO specifications
DNS compatible name No entry
Static IP address
Network mask
0.0.0.0
0.0.0.0
Default gateway 0.0.0.0
In accordance with the PROFINET specification, these factory settings allow address assignment via the
DCP and LLDP services. This means that no additional tools and no new project planning are required when replacing a device.
Topology recognition LLDP, SNMP V1, MIB2, physical device
Minimum cycle time
IRT
10 ms not supported
MRP (Media Redundancy) MRP Client is supported
Additional supported features
DCP, VLAN priority tagging, Shared Device
Transmission speed
Data transport layer
100 Mbit/s
Ethernet II, IEEE 802.3
PROFINET IO specification V2.3
(AR) Application Relations The device can simultaneously process up to 2 IO-ARs, 1 Supervisor AR and
1 Supervisor DA AR.
EtherNet/IP specifications
Static IP address 192.168.0.100
Network mask
Default gateway
255.255.255.0
192.168.0.1
Predefined standard objects Identity Object (0x01)
Message Router Object (0x02)
Assembly Object (0x04)
Connection Manager (0x06)
DLR Object (0x47)
DHCP
QoS Object (0x48)
TCP/IP Interface Object (0xF5)
Ethernet Link Object (0xF6) supported
169 english
Type 8692, 8693 REV.2
EtherNet/IP, PROFINET and Modbus TCP
BOOTP
Transmission speed
Duplex transmission
MDI modes
Data transport layer
Address Conflict Detection
(ACD)
DLR (ring topology)
CIP Reset services supported
10 and 100 Mbit/s
Half Duplex, full Duplex, autonegotiation
MDI, MDI-X, Auto-MDIX
Ethernet II, IEEE 802.3
supported supported
Identity Object Reset Service of Type 0 and 1
Modbus TCP specifications
Static IP address 192.168.0.100
Network mask
Default gateway
Modbus Function Codes
255.255.255.0
192.168.0.1
1, 2, 3, 4, 6, 15, 16, 23
Mode
Transmission speed
Data transport layer
Message Mode: Server
10 and 100 Mbit/s
Ethernet II, IEEE 802.3
19.4
The EtherNet/IP is connected with an M12 circular plug-in connector, 4-pin D-coded.
X7 - M12 field bus connection D-coded:
Pin 1 Transmit +
3 4
Pin 2 Receive +
2 1
Pin 3
Pin 4
Transmit –
Receive –
Table 49: Electrical assignment EtherNet/IP
170
X6 - M12 circular connector, 4-pin:
Pin Wire color*
1 brown
2 Not used
Assignment
Operating voltage + 24 V DC
3 blue
4 Not used
Operating voltage GND
* The indicated colors refer to the connection cable available as an accessory (918038).
Table 50: X6 - M12 circular connector, 4-pin (operating voltage) english
Type 8692, 8693 REV.2
EtherNet/IP, PROFINET and Modbus TCP
NOTE!
To ensure electromagnetic compatibility (EMC), use a shielded Ethernet cable. Ground the cable shield on both sides, on each of the connected devices.
For the grounding use a short line (max. 1 m) with a cross-section of at least 1.5 mm 2 .
FE functional earth
Figure 75: Functional earth
19.5
The bus status is indicated on the display on the device.
Display
(is displayed approx. every 3 seconds)
Device state Explanation Troubleshooting
BUS no connection
BUS critical err
Table 51:
Online,
No connection to the master.
Device is connected correctly to the bus, the network access procedure has ended without errors, however there is no established connection to the master.
• New connection established by master.
Critical bus fault.
Bus status display; Ethernet
Other device with the same address in the network.
BUS offline due to communication problems.
• Change address of the device and restart device.
• Fault analysis in the network with a bus monitor.
english
171
Type 8692, 8693 REV.2
EtherNet/IP, PROFINET and Modbus TCP
19.5.1
The following chapters of these operating instructions are not valid for Type 8692, 8693 with Ethernet.
• Section “Installation”
• Section “Start-up“
chapter „12 Electrical installation 24 V DC“
chapter „14.2 INPUT - Setting the input signal“
•
Section “Auxiliary functions” chapter „16.1.7 SPLTRNG – Signal split range“
Chapter „16.1.17 CAL.USER – Calibration of actual value and set-point value“
- menu option, calibration of the set-point position
- menu option, calibration of the process set-point value
Chapter „16.1.15 BINARY.IN – Activation of the digital input“
Chapter
„16.1.16 OUTPUT – Configuration of the outputs (option)“
19.5.2
Set the following menu options in the BUS.COMM
menu for start-up of the Ethernet variant:
BUS FAIL
Activate or deactivate approach of the safety position
Selection
SafePos off
– The actuator remains in the position which corresponds to the set-point value last transferred (default setting).
Selection
SafePos on
– If there is a fault in the bus communication, the behavior of the actuator depends on the activation of the SAFEPOS auxiliary function. See chapter
„16.1.13 SAFEPOS – Inputting the safety position“.
SAFEPOS activated:
SAFEPOS deactivated:
The actuator moves to the safety position which is specified in the SAFEPOS auxiliary function.
The actuator moves to the safety end position which it would assume if the electrical and pneumatic auxiliary power failed.
See chapter„10.9 Safety end positions after failure of the electrical or pneumatic auxiliary power“.
172 english
Type 8692, 8693 REV.2
büS option
20.1
büS is a field bus which is based on CANopen with additional functionality for networking several devices.
20.2
* Optional inputs and outputs are represented as a broken line
20.3
20.3.1
DANGER
Risk of injury due to electric shock.
▶ Before reaching into the system, switch off the power supply and secure to prevent reactivation.
▶ Observe the applicable accident prevention regulations 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 uncontrolled restart.
▶ Secure system against unintentional activation.
▶ Following installation, ensure a controlled restart.
173 english
174
Type 8692, 8693 REV.2
büS option
20.3.2
X3 - circular connector M12x1, 5-pin, male:
4
5
Pin Wire color
1
2
3
CAN shield
Not used
Black
White
Blue
Table 52:
Assignment
CAN shield
Black GND / CAN_GND
White CAN_H
Blue CAN_L
X3 - M12 circular connector, 5-pin
X6 - circular connector M12x1, 4-pin:
Pin Wire color*
1 brown
2 Not used
3 blue
4 Not used
Assignment
Operating voltage + 24 V DC
Operating voltage GND
* The indicated colors refer to the connection cable available as an accessory (918038).
Table 53: X6 - M12 circular connector, 4-pin (operating voltage)
Electrical installation with or without büS network:
To be able to use the büS network (CAN interface), a 5-pin circular connector and a shielded 5-wire cable must be used.
2
3
5
1
4
X3 - M12 circular connector, 5-pin
2
3 1
4
X6 - M12 circular connector,
4-pin
( operating voltage)
Figure 76: Electrical connection (example Type 8693) english
Type 8692, 8693 REV.2
büS option
20.4
Set the following menu options in the BUS.COMM
menu for start-up of the Ethernet variant:
BUS FAIL
Activate or deactivate approach of the safety position
Selection
SafePos off
– The actuator remains in the position which corresponds to the set-point value last transferred (default setting).
Selection
SafePos on
– If there is a fault in the bus communication, the behavior of the actuator depends on the activation of the SAFEPOS auxiliary function. See chapter
„16.1.13 SAFEPOS – Inputting the safety position“.
SAFEPOS activated:
SAFEPOS deactivated:
The actuator moves to the safety position which is specified in the SAFEPOS auxiliary function.
The actuator moves to the safety end position which it would assume if the electrical and pneumatic auxiliary power failed.
BUS.COMM
is set as follows:
→ Press MENU for 3 s. Switching from process level setting level.
Select / BUS.COMM
. Selection in the main menu (MAIN).
→ Select ENTER . The submenu options for basic settings can now be selected.
Setting device address:
(for büS devices the address is automatically set)
→ / Select address.
→ Select INPUT . The input screen is opened.
→ / Increase value or
(value between 0 and 127).
reduce value. Enter a device address
→ Select OK . Return to BUS.COMM
.
Select baud rate:
→ Select / BAUD RATE .
→ Select ENTER . The input screen is opened.
→ Select / BAUD RATE . 50 kBd /125 kBd / 250 kBd / 500 kBd / 1000 kBd
→
→
Select SELECT . The selection is now marked by a filled circle .
Select EXIT . Return to BUS.COMM.
You have set BUS.COMM
.
With büS devices not only the büS service interface but also the Bürkert Communicator can be connected directly to the büS network.
175 english
176
Type 8692, 8693 REV.2
Maintenance and troubleshooting
21.1
WARNING
Risk of injury from improper maintenance work.
▶ Maintenance may be carried out only by trained technicians and with the appropriate tools.
▶ Secure system against unintentional activation.
▶ Following maintenance, ensure a controlled restart.
21.2
If these instructions are followed for operation, Type 8692, 8693 is maintenance-free.
21.3
Display min max
CMD error
SP error
PV error
PT100 error invalid code
EEPROM fault
Table 54: General fault messages
Causes of fault
Minimum input value has been reached.
Maximum input value has been reached.
Signal fault
Set-point value position controller
Signal fault
Set-point value process controller.
Signal fault
Actual value process controller.
Signal fault
Actual value Pt 100.
Incorrect access code.
EEPROM defective.
Corrective action
Do not reduce value further.
Do not increase value further.
Check signal.
Check signal.
Check signal.
Check signal.
Enter correct access code.
Not possible, device defective.
english
Type 8692, 8693 REV.2
Maintenance and troubleshooting
21.3.1
Display Causes of error
TUNE err/break
Manual termination of self-parameterization by pressing the EXIT key.
X.TUNE locked The X.TUNE function is blocked
Remedial action
Input access code
X.TUNE
ERROR 1
X.TUNE
ERROR 2
X.TUNE
ERROR 3
X.TUNE
ERROR 4
X.TUNE
ERROR 6
X.TUNE
ERROR 7
Table 55:
No compressed air connected
Compressed air failed during
Autotune ( X.TUNE
).
Actuator or control system deaeration side leaking
Connect compressed air
Check compressed air supply
Not possible, device defective
Control system aeration side leaking Not possible, device defective
The end positions for POS-MIN and
POS-MAX are too close together
Incorrect assignment POS-MIN and
POS-MAX
Check compressed air supply
To determine POS-MIN and POS-MAX, move the actuator in the direction indicated on the display.
Error and warning message on X.TUNE
english
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Type 8692, 8693 REV.2
Maintenance and troubleshooting
21.3.2
Display
TUNE err/break
P.Q LIN
ERROR 1
Cause of fault
Manual termination of linearization by pressing the EXIT key.
No supply pressure connected.
Remedial action
Connect supply pressure.
P.Q LIN
ERROR 2
Table 56:
No change to process variable.
Check process and, if required, switch on pump or open the shut-off valve.
Check process sensor.
Current node of the valve stroke was not reached, as
• Supply pressure failed during P.Q’LIN.
• Autotune ( X.TUNE
) was not run.
Check compressed air supply.
Run Autotune ( X.TUNE
).
Error message on P.Q.‘LIN; process controller Type 8693
21.3.3
Display
TUNE err/break
P.TUNE
ERROR 1
Cause of fault
Manual termination of linearization by pressing the EXIT key.
No supply pressure connected.
Remedial action
Connect supply pressure.
Table 57:
No change to process variable.
Error message on P.TUNE; process controller Type 8693
Check process and, if required, switch on pump or open the shut-off valve.
Check process sensor.
178 english
Type 8692, 8693 REV.2
Maintenance and troubleshooting
For Ethernet/IP, PROFINET, Modbus TCP
Display
(is displayed approx. every
3 seconds)
BUS no connection
BUS critical err
Device state
Online,
No connection to the master.
Critical bus fault.
Explanation Troubleshooting
Device is connected correctly to the bus, the network access procedure has ended without faults, however there is no established connection to the master.
Other device with the same address in the network.
BUS offline problems.
due to communication
•
• New connection established by master.
Change address of the device and restart device.
• Fault analysis in the network with a bus monitor.
Table 58: Fault message Ethernet/IP, PROFINET, Modbus TCP
For büS device
Display
(is displayed approx. every
3 seconds)
BUS no connection
BUS critical err
Partner not found
Table 59:
Device state Explanation Troubleshooting
Online,
No connection to the master.
Critical bus fault.
Partner not found
Fault message büS device
Device is connected correctly to the bus, the network access procedure has ended without faults, however there is no established connection to the master.
Other device with the same address in the network.
• New connection established by master.
• Change address of the device and restart device.
BUS offline problems.
due to communication
A configured partner (Producer) cannot be found.
• Fault analysis in the network with a bus monitor.
• Check that the configured partner is switched on and connected to the büS network.
• Check the büS mapping using the Communicator.
179 english
Type 8692, 8693 REV.2
Maintenance and troubleshooting
21.4
Problem Possible causes
POS = 0 (when CMD > 0 %) or
POS = 100 %, (when CMD < 100 %).
PV = 0 (when SP > 0) or
PV = PV (when SP > SP ).
Applies only to devices with digital output:
Digital output does not switch.
Applies only to devices with process controller:
Device is not operating as a controller, despite correctly implemented settings.
Table 60: Other malfunctions
Sealing function ( CUTOFF unintentionally activated.
) is
Digital output:
• Current > 100 mA
• Short-circuit
P.CONTROL
menu option is in the main menu. The device is therefore operating as a process controller and expects a process actual value at the corresponding input.
Corrective action
Deactivate sealing function.
Check digital output connection.
Remove P.CONTROL
menu option from the main menu. See
180 english
Type 8692, 8693 REV.2
Accessories
Accessories
Connection cable with M12 socket, 8-pin, (length 5 m)
Connection cable with M12 socket, 4-pin, (length 5 m)
Connection cable with M8 socket, 4-pin, (length 5 m)
Connection cable with M12 circular connector, 4-pin, (length 5 m)
D-coded
USB büS interface set: büS service interface (büS stick + 0.7 m cable with M12 plug) büS adapter for büS service interface
(M12 to büS service interface micro USB) büS cable extensions from M12 plug to M12 socket
Connection cable, length 1 m
Connection cable, length 3 m
Connection cable, length 5 m
Connection cable, length 10 m
Bürkert Communicator
Screwdriver for opening/closing the transparent cap
Table 61: Accessories
Order number
919267
918038
264602 on request
772551
773254
772404
772405
772406
772407
Information at www.buerkert.com
674077
22.1
The PC operating program “Bürkert Communicator” is designed for communication with devices from the
Bürkert position controller family.
A detailed description for installing and operating the software can be found in the associated operating instructions.
22.2
Download the software from: www.buerkert.com
22.3
The PC requires a USB interface for communication with the devices, also a USB-büS interface set
(see „Table 61: Accessories“).
Data is transmitted according to CANopen specification.
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Type 8692, 8693 REV.2
Removal of Type 8692, 8693
WARNING
Risk of injury from improper disassembly.
▶ Removal may be carried out by authorized technicians only and using the appropriate tools.
Risk of injury from unintentional activation of the system and uncontrolled restart.
▶ Secure system against unintentional activation.
▶ Following disassembly, ensure a controlled restart.
Sequence:
1. Remove the pneumatic connections.
2. Disconnect the electrical connection.
3. Remove Type 8692, 8693.
23.1
DANGER
Risk of injury from high pressure.
▶ Before loosening lines and valves, turn off the pressure and vent the lines.
Pneumatic connections
Type 8692, 8693
Pneumatic connections
182
Valve actuator
Valve actuator
Type 8692, 8693 with process valve of Type 2103, 2300 or 2301
Type 8692, 8693 with process valve of series 26xx or 27xx
Figure 77: Removing the pneumatic connections
→ Disconnect the pneumatic connections to Type 8692, 8693.
For process valves belonging to series 26xx and 27xx:
→ Disconnect the pneumatic connections to the actuator.
english
Type 8692, 8693 REV.2
Removal of Type 8692, 8693
23.2
DANGER
Risk of injury due to electric shock.
▶ Before reaching into the device or the equipment, switch off the power supply and secure to prevent reactivation.
▶ Observe the applicable accident prevention regulations and safety regulations for electrical equipment.
Electrical connection housing
Connection cover
Cable gland
Connection with circular plug-in connector Connection with cable gland
Figure 78: Disconnecting electrical connections
Connection with circular plug-in connector:
→ Remove circular plug-in connector.
Connection with cable gland:
→ Loosen the 4 screws of the connection cover and remove the cover.
→ Loosen the screw-type terminals and pull out the cables.
23.3
Types 8692, 8693
Fastening screws
Fastening screws
Type 8692, 8693 with process valve of Type 2103, 2300 or 2301
Figure 79: Disconnecting electrical connections
→ Release the fastening screws.
→ Remove Type 8692, 8693.
Type 8692, 8693 with process valve of series 26xx or 27xx
183 english
Type 8692, 8693 REV.2
Packaging and transport
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 allowable storage temperature.
NOTE
Incorrect storage may damage the device.
▶ Store the device in a dry and dust-free location.
▶ Storage temperature -20…+65 °C (-40...158 °F).
→ Dispose of the device and packaging in an environmentally friendly manner.
NOTE
Damage to the environment caused by device components contaminated with media.
▶ Observe applicable disposal regulations and environmental regulations.
Observe national waste disposal regulations.
184 english
Type 8692, 8693 REV.2
Supplemantary Information
27.1
The following criteria are crucial for optimum control behavior and to ensure that the required maximum flow is reached:
• the correct selection of the flow coefficient which is defined primarily by the orifice of the valve;
• close coordination between the nominal width of the valve and the pressure conditions in consideration of the remaining flow resistance in the equipment.
Design guidelines can be given on the basis of the flow coefficient (k
V
value). The k
V
value refers to standardised conditions with respect to pressure, temperature and media properties.
The k
V
value describes the flow rate of water through a component in m³/h at a pressure difference of ∆ p = 1 bar and T = 20 °C.
The “k open.
VS
value” is also used for continuous valves. This indicates the k
V
value when the continuous valve is fully
Depending on the specified data, it is necessary to differentiate between the two following cases when selecting the valve: a) The pressure values p1 and p2, known before and after the valve, represent the required maximum flowrate Q max
which is to be reached:
The required k
VS
value is calculated as follows: k v s
Q max ⋅
p
0
p
0
(1)
Meaning of the symbols:
k
VS
flow coefficient of the continuous valve when fully open [m³/h]
Q
ρ
0 max
∆ p
0
maximum volume flow rate [m³/h]
= 1 bar; pressure loss on the valve according to the definition of the k
= 1000 kg/m³; density of water (according to the definition of the k
V
∆ p pressure loss on the valve [bar]
ρ density of the medium [kg/m³]
V
value
value) b) The pressure values, known at the input and output of the entire equipment (p
1 required maximum flow-rate Q max
which is to be reached:
and p
2
), represent the
1st step: Calculate the flow coefficient of the entire equipment k
Vges
according to equation (1).
2nd step: Determine the flow-rate through the equipment without the continuous valve
(e.g. by „short-circuiting“ the line at the installation location of the continuous valve).
3rd step: Calculate the flow coefficient of the equipment without the continuous valve (k
Va according to equation (1).
)
4th step: Calculate the required k
VS
value of the continuous valve according to equation (2): k v s
=
1 k
Vges
²
1
−
1 k
V a
²
(2)
185 english
Type 8692, 8693 REV.2
Supplemantary Information
The k
VS
value of the continuous valve should have at least the value which is calculated according to equation (1) or (2) which is appropriate to the application, however it should never be far above the calculated value.
The rule of thumb "slightly higher is never harmful" often used for switching valves may greatly impair the control behavior of continuous valves!
The upper limit for the k
VS
value of the continuous valve can be specified in practice via the so-called valve authority Ψ :
ψ =
(
(
∆ p
∆ p
)
V 0
)
0
= k
V a
² k
V a
²
+ k
V S
²
(3)
( ∆ p)
V0
( ∆ p)
0
Pressure drop over the fully opened valve
Pressure drop over the entire equipment
If the valve authority Ψ < 0.3 the continuous valve has been oversized.
When the continuous valve is fully open, the flow resistance in this case is significantly less than the flow resistance of the remaining fluid components in the equipment. This means that the valve position predominates in the operating characteristic in the lower opening range only. For this reason the operating characteristic is highly deformed.
By selecting a progressive (equal percentage) transfer characteristic between position set-point value and valve stroke, this can be partially compensated and the operating characteristic linearised within certain limits. However, the valve authority Ψ should be > 0.1 even if a correction characteristic is used.
The control behavior (control quality, transient time) depends greatly on the working point if a correction characteristic is used.
186 english
Type 8692, 8693 REV.2
Supplemantary Information
27.2
A PID controller has a proportional, an integral and a differential portion (P, I and D portion).
27.2.1
Function:
Kp is the proportional coefficient (proportional gain). It is the ratio of the adjusting range ∆ Y to the proportional range ∆ Xd.
Characteristic and step response of the P portion of a PID controller
Xd
X
Y
Ymax Y
Kp ⋅ Xd
Y0 t
Ymin
Proportional range ∆Xd
Characteristic
Xd
Step response
Figure 80: Characteristic and step response of the P portion of a PID controller t
Properties
In theory a pure P-controller functions instantaneously, i.e. it is quick and therefore dynamically favorable.
It has a constant control difference, i.e. it does not fully correct the effects of malfunctions and is therefore statically relatively unfavorable.
187 english
Type 8692, 8693 REV.2
Supplemantary Information
27.2.2
Function:
Y =
1
T i
X d d t (5)
Ti is the integral action time or actuating time. It is the time which passes until the actuating variable has run through the whole adjustment range.
Characteristic and step response of the I portion of a PID controller
X
Xd dY dt
Ymax
Xd
Ymin
Characteristic Step response
Figure 81: Characteristic and step response of the I portion of a PID controller
Properties
A pure I-controller completely eliminates the effects of any malfunctions which occur. It therefore has a favorable static behavior. On account of its final actuating speed control it operates slower than the P-controller and has a tendency to oscillate. It is therefore dynamically relatively unfavorable.
188 english
Type 8692, 8693 REV.2
Supplemantary Information
27.2.3
Function:
Y
K d
d X d d t
(6)
Kd is the derivative action coefficient. The larger Kd is, the greater the D-effect is.
Characteristic and step response of the D portion of a PID controller
X
Xd
X t
Y Y t
Step response Ramp response
Figure 82: Characteristic and step response of the D portion of a PID controller
Properties
A controller with a D portion responds to changes in the control variable and may therefore reduce any control differences more quickly.
english
189
190
Type 8692, 8693 REV.2
Supplemantary Information
27.2.4
Function:
Y = K p ⋅ X d +
1
T i
X d d t + K d d X d t d
(7)
Where Kp · Ti = Tn and Kd/Kp = Tv the function of the PID controller is calculated according to the following equation:
Y = K p ⋅ ( X d +
1
T n
X d d t + T v d d
X t d
) (8)
Kp Proportional coefficient / proportional gain
Tn Reset time
(Time which is required to obtain an equally large change in the actuating variable by the I portion, as occurs due to the P portion)
Tv Derivative time
(Time by which a certain actuating variable is reached earlier on account of the D portion than with a pure P-controller)
Step response and ramp response of the PID controller
X
Xd
X
Y
Kp ⋅ Xd
D-portion
Reset time Tn t
I-portion
P-portion t t
Y
I-portion
D-portion
P-portion t
Hold-back time Tv
Ramp response of the PID controller Step response of the PID controller
Figure 83: Characteristic of step response and ramp response of PID controller english
Type 8692, 8693 REV.2
Supplemantary Information
27.2.5
27.2.5.1.
In the process controller Type 8693 the D portion is implemented with a delay T.
Function:
T
d Y d t
Y
K d
d X d d t
(9)
Superposition of P, I and DT Portions
X
Xd t
Xd
Y
T t
T
Figure 84: Characteristic of superposition of P, I and DT Portions
27.2.5.2.
T ⋅ d Y d t
+ Y = K p ( X d +
1
T n
X d d t + T v d X d d t
Superposition of P, I and DT Portions
X
Xd
(10) t
Kp
Y
Xd
T
Kp ⋅ Xd t
Tn
Figure 85: Characteristic of step response of the real PID controller english
191
192
Type 8692, 8693 REV.2
Supplemantary Information
27.3
The control system Type 8693 features a self-optimization function for the structure and parameters of the integrated process controller. The determined PID parameters can be seen via the operating menu and reoptimized at will for an empirical path.
The regulatory literature includes a series of adjustment rules which can be used in experimental ways to determine a favorable setting for the controller parameters. To avoid incorrect settings, always observe the conditions under which the particular adjustment rules have been drawn up. Apart from the properties of the control process and the controller itself, the aspect whether a change in the disturbance variable or command variable is to be corrected plays a role.
27.3.1
With this method the controller parameters are adjusted on the basis of the behavior of the control circuit at the stability limit. The controller parameters are first adjusted so that the control circuit starts to oscillate. The occurring critical characteristic values suggest a favorable adjustment of the controller parameters. A prerequisite for the application of this method of course is that the control circuit is oscillated.
Procedure
→ Set controller as P-controller (i.e. Tn = 999, Tv = 0), first select a low value for Kp
→ Set required set-point value
→ Increase Kp until the control variable initiates an undamped continuous oscillation.
The proportionality coefficient (proportional gain) set at the stability limit is designated as K krit oscillation duration is designated as T krit
.
. The resulting
Progress of the control variable at the stability limit
X
Actual value
Tkrit t
Time
Figure 86: Progress of the control variable PID english
Type 8692, 8693 REV.2
Supplemantary Information
The controller parameters can then be calculated from K krit
and T krit
according to the following table.
Adjustment of the parameters according to Ziegler and Nichols
Controller type
P controller
PI controller
PID controller
Table 62:
Adjustment of the parameters
Kp = 0.5 K krit
Kp = 0.45 K krit
Kp = 0.6 K krit
Tn = 0.85 T
Tn = 0.5 T krit krit
-
Adjustment of the parameters according to Ziegler and Nichols
Tv = 0.12 T krit
-
-
The adjustment rules of Ziegler and Nichols have been determined for P-controlled systems with a time delay of the first order and dead time. However, they apply only to controllers with a disturbance reaction and not to those with a reference reaction.
english
193
194
Type 8692, 8693 REV.2
Supplemantary Information
27.3.2
With this method the controller parameters are adjusted on the basis of the transient behavior of the controlled system. An actuating variable jump of 100% is output. The times Tu and Tg are derived from the progress of the actual value of the control variable.
Progress of the control variable following an actuating variable jump ∆ Y
Actuating variable Y t
Actual value
Ks ⋅∆ Y
Control variable t
Tu Tg
Figure 87: Progress of the control variable, actuating variable jump
Procedure
→ Switch controller to MANUAL (MANU) operating state
→ Output the actuating variable jump and record control variable with a recorder
→ If progresses are critical (e.g. danger of overheating), switch off promptly.
Note that in thermally slow systems the actual value of the control variable may continue to rise after the controller has been switched off.
the adjustment values have been specified for the controller parameters, depending on Tu, Tg and Ks for reference and disturbance reaction, as well as for an aperiodic control process and a control process with a 20% overshoot. They apply to controlled systems with P-behavior, with dead time and with a delay of the first order.
english
Type 8692, 8693 REV.2
Supplemantary Information
Adjustment of the parameters according to Chien, Hrones and Reswick
Controller type
Adjustment of the parameters for aperiodic control process
(0% overshoot)
Reference Malfunction for control process with 20% overshoot
Reference Malfunction
P controller Kp = 0,3 ·
Tg
Tu · Ks
Kp = 0,3 ·
Tg
Tu · Ks
Kp =
0,7 ·
Tg
Tu · Ks
Kp = 0,7·
Tg
Tu · Ks
PI controller Kp = 0,35 ·
Tn = 1,2 · Tg
Tg
Tu · Ks
Kp = 0,6 ·
Tg
Tu · Ks
Tn = 4 · Tu
Kp = 0,6 ·
Tg
Tu · Ks
Tn = Tg
Kp = 0,7·
Tg
Tu · Ks
Tn = 2,3 · Tu
PID controller
Table 63:
Kp = 0,6 ·
Tn = Tg
T v = 0,5 · Tu
Tg
Tu · Ks
Kp = 0,95 ·
Tn = 2,4 · Tu
T v = 0,42 · Tu
Tg
Tu · Ks
Kp = 0,95 ·
Tn = 1,35 · Tg
T v = 0,47 · Tu
Adjustment of the parameters according to Chien, Hrones and Reswick
Tg
Tu · Ks
Kp =
1,2 ·
Tg
Tu · Ks
Tn = 2 · Tu
T v = 0,42 · Tu
The amplification factor Ks of the controlled system is calculated as follows:
K s =
∆ X
∆ Y
(11) english
195
196
Type 8692, 8693 REV.2
Tables for customer-specific settings
28.1
28.1.1
25
30
35
40
45
50
55
Node
(position set-point value as %)
0
5
10
15
20
80
85
90
95
100
60
65
70
75
Date: Date:
Valve stroke [%]
Date: Date: english
Type 8692, 8693 REV.2
Tables for customer-specific settings
28.2
8693
28.2.1
Date: Date: Date: Date:
KP
TN
TV
X0
DBND
DP
PVmin
PVmax
SPmin
SPmax
UNIT
K-Factor
FILTER
INP english
197
198 english
Type 8692, 8693 REV.2
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How to perform the X.TUNE (reteaching) function and what does it do?
The X.TUNE function automatically adjusts the sensor signal to the actuator's stroke, determines pulse-width modulated (PWM) parameters for the solenoid valves, and optimizes controller parameters for short transient times. This should only be performed when the process is not running, as the valve position will change during the procedure.
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