Digital electropneumatic positioner

Transcription

1 Digital electropneumatic positioner Type 879 can be combined with Compact metal housing Graphic display with backlight Easy start-up Comprehensive range of additional software functions Profibus DPV1 (optional) Assembly acc. to IEC 5-6 / VDI VDE 85 Yoke type actuators Rack/pinion actuators The robust and compact positioner is designed to standardisation acc. to IEC 5-6 or VDI/ VDE 85 for assembly with linear and rotary actuators. In addition, the remote version with the displacement position sensor can be combined with Bürkert process control valves. The digital electropneumatic positioner Side- Control can be operated with the usual current and voltage standard signals and can also be equipped with the fieldbus interface PROBUS DPV1. Additionally to the digital graphic display the valve opening is signaled by a mechanical indicator element. Operation occurs via the external operation and display module. It consists of a backlit graphical display and a robust transparency keyboard with four keys with software driven function indication. For the user operation is very simple and clear, identical to the Bürkert positioner or process controller TopControl, Type 869/869. The pilot valve system can be used equally for single and double-acting drives. It is characterised by a defined safety feature in case of failure of the electrical or pneumatic power supply and possesses an enormous air capacity range with pressure supply up to 7 bar. Process control valve with remote positioner Technical data Materials Body Aluminium plastic-coated Seal EPDM, NBR, FKM Operating voltage VDC /- 10% Residual ripple 10%, no technical direct current! Setpoint setting 0/ to 0mA and 0 to 5/10 V Input resistance 0/ to 0 ma: 180 Ω 0 to 5/10 ma: 19 k Ω Analogue feedback -0 ma, 0-0 ma 0-10 V, 0-5 V Binary input galvanically isolated, 0-5 V = log 0, 10-0 V = log 1 Binary Output Output (optional) galvanically isolated, Current limit 100 ma, Output will be synchronised when overloaded Control medium Dust concentration Particle density Pressure condensation point Oil concetration Ambient temperature neutral gases, air DIN ISO Class 5 (<0μm particle size) Class 5 (<10mg/m ) Class (<-0 C) Class 5 (<5mg/m ) 0 to 60 C Pilot air ports Threaded port G 1/ Supply pressure 1, to 7 bar 1) Air input filter Pilot valve system Air capacity Exchangeable (aperture size ~0,1mm) Single and double-acting up to 150 l N /min. 95 l N /min (with 1, bar ) ) for aeration and ventilation 150 l N /min (with 6 bar ) ) for aeration and ventilation (Q Nn = 100 l N /min (acc. to the defi nition with decrease in pressure from 7 to 6 bar absolute) Position detection module Potentiometer, max. angle 180 Stroke range valve spindle min. 0º on the rotary shaft, depending on lever continued on next page 1) The supply pressure has to be bar above the minimum required pilot pressure for the valve actuator ) Pressure specifi cations: Overpressure with respect to atmospheric pressure p. 1/10

2 Technical data, continued Technical data Installation Type of protection Power consumption Electrical connection Multipole connection Cable gland as required, display above or sideways IP 65/67 acc. to EN 6059 (NEMAx in preparation) < 5 W M1, 8-pin / -pin; M8, -pin xm0x1,5 (cable-ø10mm) on screw terminals (0,1-1,5 mm ) Bus communication Profi bus DPV1 (optional) Inductive proximity switches on request Protection class acc. to VDE 0580 Type of ignition protection II G na II B T (in preparation) II D td A T15 (in preparation) Conformity EMV00/108/EG Approvals CSA (in preparation) Example of assembly variations of Positioner Positioner Type 879 Linear actuators IEC 5-6 Rotary actuators VDI/VDE 85 Control valve system Control valve system Type 8805 Type 879 Type 00 Type 879 Positioner Remote*) Type 8798 Position Sensor Remote*) Type 70 Type 879 Positioner Remote*) Type 8798 Position Sensor Remote*) *) Remote version in preparation p. /10

3 Assembly options Standard version (Positioner with integrated position sensor, assembly acc. to NAMUR/IEC 5-6 and VDI/VDE 85) Assembly on rotary actuator Assembly on linear actuator Item no. for adapter kit Item no. assembly bridge Item no. for adapter kit Remote version (on request) (Positioner with displacement sensor) Assembly with accessory brackets Item no. assembly bracket for wall mounting on request Assembly on DIN-Rail Type 8798 Item no. for DIN rail assembly kit on request Item no. position sensor remote on request p. /10

4 Ordering chart (other versions on request) Assembly variations Communication Electrical connection Analogue feedback Binary outputs Binary input Initiator control function single and double-acting Item no. NAMUR IEC 5-6 no Cable gland no no yes no yes VDI/VDE 85 no no yes yes on request no yes yes no yes yes yes yes no yes yes yes yes yes on request Multipole no no yes no yes on request no no yes yes on request no yes yes no yes on request yes yes yes no yes on request yes yes yes yes on request Profi bus DPV1 Multipole via Bus no yes no yes via Bus no yes yes via Bus yes yes no yes on request Remote no Cable gland no no yes no yes on request no yes yes no yes on request yes yes yes no yes on request Additional Remote version (Positioner remote from actuator with displacement positioner sensor) Initiators for end position feedback Ordering chart for accessories Description Item no. Assembly bridge VDI/VDE 85, Stainless steel Adapter kit VDI/VDE 85, Stainless steel Adapter kit linear actuators IEC 5-6, stainless steel Bracket for wall mounting, Stainless steel on request Holder for DIN-Rail assembly AI/Stainless steel on request Silencer G 1/ (replacement part) M1 socket, 8-pin, m cable set M8 plug, -pin for binary outputs, without cable p. /10

5 Connection options Multi-pin connection Operating voltages and diverse signals Binary output, optional Circular connector M1, 8-pin 5 FE Earth plate functions Socket M8, -pin Circular connector M1-8-pin (Setpoint) Pin Configuration External Circuitry / level signal 1 Setpoint (0/-0 ma or 0-5/10 V) 1 (0/-0 ma or 0-5/10 V) Completely galvanically separated Setpoint GND GND GND V DC ± 10% max. Residual ripple 10% V 5 Binary input 5 6 Binary Output GND 6 GND 0-5 V (log. 0) 10-0 V (log. 1) optional Analogue feedback 8 Analogue feedback 8 (0/-0 ma or 0-5/10 V) Completely galvanically separated 7 Analogue feedback GND 7 GND socket M8, -pin (only with optional Binary Output) Pin Configuration External Circuitry / level signal 1 Binary output V Binary output 0- V Binary Output GND GND p. 5/10

6 Connection options, continued PROFIBUS-DP connection 5 6 FE Earth plate functions Circular connector M1, 8-pin Socket M1, 5-pin (inverse coded PROFIBUS-DP) Circular connector M1, 5-pin (inverse coded PROFIBUS-DP) Operating voltages - Circular connector M1, 8-pin Pin Configuration External Circuitry / level signal 1 not confi gured not confi gured GND V DC ± 10 % V max. Residual ripple 10 % 5 Binary input 6 Binary input 7 Binary output 1 (oriented at Pin ) 8 Binary output (oriented at Pin ) Bus-Connection - socket/circular connector M1, 5-pin Pin Configuration External Circuitry / level signal 1 VP5 load resistance supply RxD/TxD-N Receive and send information -N, A Circuitry DGND Information transfer potential (measured to 5 V) RxD/TxD-P Receive and send information -N, A Circuitry 5 Shield Shield / protective earth p. 6/10

7 Connection options, continued Cable gland connection 1 V GND Optional: S S A B Terminal Configuration External Circuitry / level signal 11 Setpoint 11 (0/... 0 ma or / 10 V) Complete galvanic separation 1 Setpoint GND 1 GND 81 Binary input V (log. 0) V (log. 1) obtained at GND operating voltages (GND clamps) V GND operating voltages operating voltages GND V GND V DC ± 10 % max. Residual ripple 10 % Optional analogue feedback / Binary output Terminal Configuration External Circuitry / level signal 8 Binary output 1 8 V / 0 V, NC / NO obtained at GND operating voltages ( GND clamps) 85 Binary output 85 V / 0 V, NC / NO obtained at GND operating voltages ( GND clamps) 1 Analogue position feedback 1 (0/... 0 ma or / 10 V) Complete galvanic separation Analogue Position feedback GND GND Terminal 1,,, : NC p. 7/10

8 Signal flow plan Position control loop Aditional software options of the Positioner Type 879 (extract) Automatic start of the control system Automatic or manual characteristics curves selection Setting of the seal and the maximum stroke threshold respectively Parameterisation of the Positioner Limitation of the stroke range Limitation of the manipulating speed Setting of the moving direction Confi guration of the binary input Signal range splitting on several controllers Configuration of analogue or binary outputs Signal fault detection Safety position Code protection Contrast inversion of the display Diagnostic functions Schematic diagram of, Typ 879 without fieldbus interface with Profibus DP Bus Bus Input Positioner PROFIBUS-DP Outputs Binary outputs V PNP ) Binary input Initiator 1 / Initiator V PNP NO ) V DC 1) Supply unit Operation 1) The operating voltag is supplied with a -wire unit independent from the setpoint signal ) Alternative options p. 8/10

9 Dimensions [mm] Description L BG B A A1 A Standard 171,1 81,8 109,8 1 0 PROFIBUS 157,8 81,8 109, ,5 Multi-pin Bin. OFF 157,6 81,8 109,8 6 1 Multi-pin 157, 81,8 109,8 -,5 Remote 171,1 81,8 109, ,5 p. 9/10

10 Positioner Dimensions [mm], continued The rotation angle of the sensor must be within a range of 180 With the valve open approx. 50%, the sensor indicator should be in this position. To find your nearest Bürkert facility, click on the orange box In case of special application conditions, please consult for advice Subject to alterations. Christian Bürkert GmbH & Co. KG 0909/_EU-en_ p. 10/10