Burkert 1067 User manual

1067
POSITIONER TYPE 1067
E-1-
TABLE OF CONTENTS
1 INTRODUCTION ................................................................................................................ E-2
1.1 Unpacking and inspecting..................................................................................................E-2
1.2 General notes on use and safety.......................................................................................E-2
1.3 Electromagnetic compatibility ............................................................................................ E-2
2 DESCRIPTION ................................................................................................................... E-3
2.1 Characteristics and possible applications ......................................................................... E-3
2.2 Construction ....................................................................................................................... E-5
2.3 Principle of operation .........................................................................................................E-6
2.4 Safety position.................................................................................................................... E-7
2.5 Technical data .................................................................................................................... E-8
3 INSTALLATION ................................................................................................................. E-9
3.1 Construction and assembly................................................................................................ E-9
3.1.1 Fitting the positioner to a continuous valve with membrane drive (NAMUR).......... E-9
3.1.2 Fitting the positioner to a type 2031 continuous valve with piston drive ...............E-11
3.1.3 Fitting the positioner to a continuous valve with rotary drive.................................E-13
3.2 Fluid ports.........................................................................................................................E-14
3.3 Electrical connections ......................................................................................................E-15
4 OPERATION ....................................................................................................................E-16
4.1 Controls and indicators ....................................................................................................E-16
4.2 Operating levels ...............................................................................................................E-17
4.3 Setting up .........................................................................................................................E-18
4.4 Process control.................................................................................................................E-19
4.4.1 Meaning of LEDs and keys in the process control level ........................................E-20
4.4.2 Displays...................................................................................................................E-20
4.5 Configuration ....................................................................................................................E-21
4.5.1 Additional functions.................................................................................................E-21
4.5.2 Configuration menu.................................................................................................E-22
4.5.3 Function of keys in the configuration level .............................................................E-25
4.5.4 Notes on the basic and additional functions ..........................................................E-25
4.6 Manual operation without power supply ..........................................................................E-34
4.7 Structure of the positioner................................................................................................E-35
5 MAINTENANCE ...............................................................................................................E-36
Fault messages ................................................................................................................E-36
APPENDIX .......................................................................................................................E-37
A1: Characteristics of PID controllers..............................................................................E-37
A2: Rules for adjusting PID controllers............................................................................E-39
A3: Optional board for analog position indication............................................................E-44
A4: Optional board for binary position indication/Booster...............................................E-45

E-2-
1067
POSITIONER TYPE 10671 INTRODUCTION
Dear Customer,
We congratulate you on the purchase of our
positioner type 1067. You have made a good
choice. To be able to make the best use of the
many advantages the product has to offer, it is
absolutely necessary to follow our advice and
READ THESE OPERATING INSTRUC-
TIONS CAREFULLY BEFORE FITTING
THE UNIT AND PUTTING IT INTO
SERVICE
1.1 Unpacking and inspecting
Pleasecheckthe delivery for completeness and
transportation damage. The standard delivery
includes:
-1 Positioner 1067 Ref 642292A
-1 Operating Instructions Manual
In the event of loss or damage please contact
your Bürkert Subsidiary.
1.2 General notes on use and
safety
Thispublicationcontainsnowarranty statement
For this we refer to our general purchase and
delivery conditions.
To ensure proper functioning and a long life of
the positioner, the user must observe these
OperatingInstructionsaswellas complyingwith
the installation conditions and permissible data
as given in the data sheet. Installation and
maintenance personnel must have training and
qualifications suitable for the task.
Suitable measures are to be taken to prevent
unintentional actuation and the resulting effect
ontheprocess.Safeelectricalisolatingandshut-
off devices for the media must be provided for
the installation task. If the positioner is part of a
complex automated system, a defined and
controlled restart of the automated system after
aninterruptionshallbeguaranteedinaccordance
with the instructions.
The accident and prevention safety regulations
for electrical equipment shall be complied with
during the operation, servicing and repair of the
positioner.
Repairs may only be carried out by authorised
trained personnel.
ThissymbolisshownintheOperating
Instructionseachtimeparticularcare
is required to ensure correct
installation,functioningandoperating
safety of the equipment.
1.3 Electromagnetic compatibility
This device conforms to the EMC-Directive of
the Council of European Communities
89/336/EEC.
In order to comply with this directive, the wiring
instructions must be followed.
Master code
Unauthorised operation can be prevented at the
various operating levels by a freely-selectable
user code. Independent of this, there is a fixed,
programmed master code which cannot be
changed, by means of which all operations can
be performed. This four-digit master code is
given on the bottom margin of this page. It
can be cut out and kept separately from these
Operating Instructions.
Master code:
6568
!

1067
POSITIONER TYPE 1067
E-3-
2 DESCRIPTION
2.1 Characteristics and possible applications (overview)
The type 1067 positioner is an electropneumatic position controller for pneumatically actuated
continuous valves. The device includes the following main functional groups: a feedback/positional
transducer, an electropneumatic system and a microprocessor electronic system. The feedback/
positional transducer measures the actual position of the continuous valve. The microprocessor
electronic system continuously compares the actual position (actual value) with a desired position
value that was preset via the standard signal input and supplies the result to the position controller.
Ifanerrorexists,theelectropneumaticsystemcausestheactualpositiontobeappropriatelycorrected.
Thetype1067positionercanbefittedtovariouscontinuousvalves(e.g.valveswithpiston,membrane
or rotary drives and with single or double action). Two variant forms of the basic device are offered
thatdifferintheirfixingoptionsandfeedback/positionaltransducers.Invariant1,aninternalfeedback/
positional transducer is used that takes the form of a rotary potentiometer. In variant 2, an external
linear potentiometer serves as feedback/positional transducer.
The positioner also implements a PID controller by means of which, in addition to position control,
process control (e.g. level, pressure, flow or temperature control) can be achieved in the form of
sequence control.
A liquid-crystal display and a keypad with three keys are provided for operating the positioner. An
operating concept with the following graded operating levels has been implemented:
- Process operation
Thislevelallowsswitchingbetweenautomaticandmanualoperation,andenablesmanualactuation.
- Configuration
Configurationlevel isusedto specifycertainbasic functionswhenthe positioneristakenintoservice
and, if necessary, to configure additional functions.

E-4-
1067
POSITIONER TYPE 10672 DESCRIPTION
Fig. 1 Block diagram of the type 1067 positioner
Positioner
type 1067
Input for process actual
value
4...20 mA
Input for position or
process setpoint
0...10 V
0...20 mA
4...20 mA
24 VDC
Binary input (contact)
Analog output (option)
RS 232 (option)
RS 485 / PROFIBUS
(option)
Operation
Characteristics, functions
Inputs
Power
Output
Interfaces
Position controller with
additional functions, e. g.
- close tight function
- plug travel limitation
- setting speed limitation
- split range
- correction characteristics
- deadband
- safety position
Additional integrated process
controller with the following features:
- adjustable parameters
- scalable inputs
- setpoint setting via input signal or
keys
Automatic adaptation of position
controller to the continuous valve in
use
Hierarchical operating concept for
simple, staged-level operation

1067
POSITIONER TYPE 1067
E-5-
2 DESCRIPTION
2.2 Construction
The positioner consists of the following main assemblies:
- Body and bonnet (aluminium)
- internal feedback/positional transducer for measuring valve position
- Microprocessor/electronic unit for signal processing and control
- Solenoid valves for control of a continuous action valve
- Fluid plate with fluid ports
- Terminals and cable glands
- Display and keyboard
Fig. 2 Cross section of the positioner with internal feedback/positional transducer
Connection
terminal
Manual operation
Cable gland
Display and keypad
Fluid plate
Fluid ports
Solenoid valve
Aluminium body and
bonnet with hinge Electronic
In variant 2, an external linear potentiometer serves as feedback/positional transducer (see fig. 3).
Fig. 3 External feedback/positional transducer
Positional
transducer shaft
Internal feedback/
positional transducer for
connection according to
NAMUR

E-6-
1067
POSITIONER TYPE 1067
2 DESCRIPTION
2.3 Principle of operation
Fig.4showsaoperationaldiagramofthepositionerwithitsrelationshiptoapistondrivecontrolvalve.
An external feedback/positional transducer is used in this case to measure the actual position.
Fig. 4 Operational diagram
Piston
valve
Air inlet
Solenoid valves Air exhaust
Position
controller
Set
position
Process value (Pressure, flow, level...)
Sensor
Process
controller
Theposition(actual position) of the valve drive is determinedbythe feedback/positional transducer.
The signal corresponding to the actual position is continuously compared in the positioner with the
desiredpositionandtheerror(controldeviation)isformed.Pulsesofvariabledurationcorresponding
to the error are delivered to the magnetic valves of the electropneumatic system, by means of which
thesuppliedairandoutgoingairforpositioningtheactuatingdriveofacontinuousvalvearecontrolled.
The desired position can be preset either via a standard signal input from outside (e.g. manually or
viaanexternalcontroller)orviatheinternalprocesscontroller. Inthe lattercase,thedesiredprocess
value is applied to the standard signal input or entered via keypad and a comparison is made with
the process quantity (e.g. flow, pressure, level or temperature) that is to be controlled (Fig. 4).
Ifthe desired position is preset externally via the standard signal inputprovided for that purpose (i.e.
if the internal process controller is not used), the device works as a position controller only (Fig. 5).
The position controller is implemented as a PD controller within the microprocessor. A pulse-width
modulation (PWM) member is connected to the controller output and, via its B1and E1outputs, the
magnetic valves for supplying air to and venting the actuating drive are controlled. When a positive
error exists, pulses (PWM signals) are output from output B1to switch the supplied air. When a
negative error exists, pulses are output from output E1to switch the outgoing air.
The positioner can be supplied for both single-acting and double-acting actuating drives. The PWM
memberhastwofurtheroutputs,B2andE2,viawhichthetwoadditionalmagneticvalvesforsupplying
air to and evacuating air from double-acting actuating drives are controlled.
If the internal process controller is used, it constitutes a component in a higher-level control loop
(main control loop). The position controller mentioned above now operates in a lower-level auxiliary
control loop. The overall effect is sequence control (Fig. 6). The internal process controller (main
controller) is implemented as a PID controller (Z1 and Z2 representing disturbance variables).
Feedback/positional
transducer Actual-position
External setpoint Process
setpoint

1067
POSITIONER TYPE 1067
E-7-
2 DESCRIPTION
Fig. 5 Position control
Position controller Valve actuator
PWM element
Setposition
Fig. 6 Process control
Process
Auxiliary control loop
Main control loop
Set
position
2.4 Safety position
In the event of power failure, the functioning of the actuator ensures that a pre-determined end
position is adopted (opened or closed by spring pressure).
Process
controller Position controller PWM-element Valve actuator

E-8-
1067
POSITIONER TYPE 10672 DESCRIPTION
2.5 Technical data
Electrical data
Power supply: 24 VDC
Power consumption: < 10 W
Input for desired value
Input for setpoint for position or process control:
- Unit signal 4 ... 20 mA
- Unit signal 0 ... 20 mA
- Unit signal 0 ... 10 V
Input for process signal (in case of process control):
- Unit signal 4 ... 20 mA
Binary input: Can be configured as a normally open or normally
closed contact.
Terminations: 1.5 mm2bolted terminals
Two PG 9 screwed glands
Pneumatic data
Control medium: filtered compressed dry air, oiled or non-oiled
Pressure range: 0 ... 6 bar
Air rates
Inlet valve: 23 Nl / min (1)
Exhaust valve: 25 Nl / min (1)
Air consumption by unit
in stable state: 0 Nl / min
Unions: G 1/8" internal thread
(1) When pressure reduction from 6 to 5 bar
Mechanical data
Regulation range of internal path-measuring system:
lift turn: 10...80 mm
rotary movement: 0...180°
Regulation range of external path-measuring system:
lift turn: 0...50 mm
Process controller data
Proportional correction value KP: 0...99,99
Reset time TN: 0.5...999.9
Rate time TV: 0.0...999.9
Operating point: 0...100%
Installation and operating data
External dimensions of positioner : 125 mm x 80 mm x 80 mm (W x H x D)
Material of body: Aluminium, lacquered
Material of the fluid plate: Aluminium, anodised
Weight of positioner: Approx. 1 kg
Degree of protection: IP 65
Operating temperature: 0 ... 60 °C

1067
POSITIONER TYPE 1067
E-9-
3 INSTALLATION
3.1 Construction and assembly
The type 1067 positioner can be fitted to various continuous valves. Depending on the valve type
eithervariant1,withan internal feedback/positional transducer (a rotary potentiometer) or variant 2,
with an external feedback/positional transducer (a linear potentiometer) is used (see section 2.3).
Main dimensions: Positioner Externalfeedback/positionaltransducer
Width: 125 mm Diameter: approx. 65 mm
Height: 80 mm Height: approx. 95 (115) mm
Depth: 80 mm
3.1.1 Fittingthe positionertoa continuousvalvewith membranedrive (according toNAMUR)
Arrangement
In the case of a continuous valve with membrane drive, device variant 1, with an internal feedback/
positional transducer (a rotary potentiometer) should be used. The positioner is screwed on to what
is termed the «lantern»of the membrane drive (Fig. 7). Transmission of the valve position to the
internal feedback/positional transducer is achieved by means of a lever conforming to NAMUR
(Fig. 8).
Assembly
Amountingelbow(Fig.10)isprovidedforassemblingvariant1ofthepositionertoacontinuousvalve
with membrane drive (e.g. Type 265). The following steps should be carried out:
Screw mounting elbow to the positioner using 4 x M6  screws.
Fasten pin using washer and nut to that position of the lever which corresponds with the
desired lift (the lever is marked in mm of lift).
Put lever with pin on to the path-sensor shaft of the positioner so that the marking on the shaft
points towards the pin on the lever. Then screw lever tight with screw . Fasten carrier with
cheese-head bolts to the lifting rod of the membrane valve.
Fig. 7 Fitting to a type 265 continuous valve
with membrane drive Fig. 8 Rear view of positioner (variant 1) with
lever

E-10-
1067
POSITIONER TYPE 1067
Fig. 9 Position of lever during assembly
3 INSTALLATION
Set positioner, with the mounting elbow screwed on to it, on the membrane drive so that the pin
slots into the carrier , the point of the lever runs parallel with the upper edge of the positioner
(Fig. 9) and the rear side of the positioner runs parallel with the carrier . Fasten the positioner to
the membrane drive in this position as appropriate to the following variants:
- In the case of membrane drives with pillar lanterns, fasten mounting elbow with two U-bolts ,
nuts  and washers  to the appropriate pillar lantern (Fig. 10a).
- In the case of membrane drives with cast lanterns, fasten mounting elbow with one screw 
(Fig. 10b) or four screws  (Fig. 10c) to the appropriate cast lantern (Fig. 10a).
Fig. 10 Assembly of positioner to a continuous valve with membrane drive
Parallel