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23

Technical data

8 

TECHNICAL DATA

8.1 

Standards and directives

The device complies with the relevant EU harmonisation legislation. In addition, the device also complies 

with the requirements of the laws of the United Kingdom.
The harmonised standards that have been applied for the conformity assessment procedure are listed in the 

current version of the EU Declaration of Conformity/UK Declaration of Conformity.

8.2 

Operating conditions

WARNING!

Sunlight or temperature fluctuations may cause malfunctions or leaks.

 

▶

When using the device outdoors, protect it from adverse weather conditions.

 

▶

Ensure that ambient temperature does not exceed or drop below the permitted ambient temperature.

Ambient temperature

See type label

Degree of protection 

 IP65/IP67

7)

 to EN 60529   

(only when cables or plugs and sockets connected correctly)

7) 

 When using the positioner under IP67 conditions, the exhaust filter (see 

“Fig. 1: 

Structure, positioner Type 8791”) must be removed and the exhaust air led to the 

dry area.

Altitude

up to 2,000 m above sea level

8.3 

Mechanical data

Dimensions           See data sheet

Materials

   Body material        Aluminium, plastic-coated 

Other external parts     Stainless steel (V4A), PC, PE, POM, PTFE

  Seal material          EPDM, NBR, FKM

Weight              approx. 1.0 kg

Type 8791, REV.2

english

Summary of Contents for 8791 REV.2

Page 1: ...Operating instructions Type 8791 REV 2 Positioner SideControl BASIC Electro pneumatic positioner STATUS COM ...

Page 2: ...e right to make technical changes without notice Technische Änderungen vorbehalten Sous réserve de modifications techniques Bürkert Werke GmbH Co KG 2009 2022 Operating Instructions 2211 04_ENen_00815310 Original DE ...

Page 3: ...ith valve types and mounting variants 14 5 1 3 Optional external position feedback unit with inductive proximity switch 14 5 1 4 Overview of mounting options 15 6 STRUCTURE 16 6 1 Illustration 16 7 FUNCTION 17 7 1 Functional diagram 17 7 2 Position control function 18 7 2 1 Schematic presentation of the position control 19 7 2 2 Functions of the positioner software 20 7 3 Positioner interfaces 22 ...

Page 4: ... 29 9 3 Operating and display elements of the positioner 29 9 3 1 Assignment of the keys 30 9 3 2 DIP switch function 31 9 3 3 LED display 32 9 3 4 Status indicator 32 9 3 5 Status LED green 34 9 4 Error notifications 35 9 4 1 Notifications on device status Out of specification 35 9 4 2 Messages Actuator is moving to safety position 35 10 FUNCTIONS 37 10 1 Basic functions 37 10 1 1 DIR CMD Inversi...

Page 5: ...ants without fieldbus communication 50 10 2 9 OUTPUT variant Configuring the analogue output only for variants without fieldbus communication 51 10 2 10 Setting LED operation mode device status 51 11 MOUNTING AND INSTALLATION 52 11 1 Safety instructions 52 11 2 Mounting on a continuous valve with linear actuator according to NAMUR 53 11 2 1 Attachment kit in accordance with IEC 534 6 on linear act...

Page 6: ... cable gland 67 13 3 1 Designation of screw type terminals 67 13 3 2 Connection of terminals 67 13 3 3 Terminal assignment for input signals from control centre e g PLC 68 13 3 4 Terminal assignment for the output signals to the control centre PLC for example only for analogue output variant 68 13 3 5 Terminal layout for operating voltage 69 13 3 6 Terminal assignment for external position sensor ...

Page 7: ...üS device to the Bürkert Communicator 75 17 IO LINK 76 17 1 Information IO Link 76 17 2 Technical data IO Link 76 17 3 Configuring the fieldbus 76 18 BÜS 77 18 1 Information büS 77 18 2 Configuring the fieldbus 77 19 MAINTENANCE 78 20 ACCESSORIES 78 20 1 Communication software 78 21 PACKAGING TRANSPORT DISPOSAL 79 Type 8791 REV 2 english ...

Page 8: ... result in death or serious injuries WARNING Warns of a potentially hazardous situation Failure to observe these instructions may result in serious injuries or death CAUTION Warns of a potential danger Failure to observe these instructions may result in moderate or minor injuries WARNING Warns of damage Failure to observe these instructions may result in damage to the device or the system Indicate...

Page 9: ...em buS used in this manual stands for the communication buS developed by Bürkert based on the CANopen protocol The abbreviation Ex used in these instructions always stands for potentially explosive atmosphere 1 3 Firmware modifications From firmware version Modifications A 1 6 Information for Valve position in between changed from LED off to LED lights white Type 8791 REV 2 english ...

Page 10: ...erating conditions and application conditions These specifications can be found in the contract documents the operating instructions and on the Type label Use the device only in conjunction with third party devices and components recommended or approved by Bürkert When used outdoors protect the device against adverse weather conditions In potentially explosive areas only use devices that are appro...

Page 11: ... and do not subject it to mechanical stress Use the device only when it is in perfect condition and in accordance with the operating instructions Observe the general rules of technology Install the device according to the regulations applicable in the respective country Do not feed any aggressive or combustible media into the connections of the device Do not feed any liquids into the device s conn...

Page 12: ...addresses can be found on the back pages of the printed operating instructions Also on the Internet at country burkert com 4 2 Warranty A precondition for the warranty is that the Type 8791 positioner is used as intended and that the specified conditions of use are taken into account 4 3 Information on the Internet Operating instructions and data sheets for the Type 8791 can be found on the Intern...

Page 13: ...sor controlled electronics assembly for signal processing closed loop control and valve control Control module The device is controlled with two keys and four DIP switches Two LEDs one RGB LED for the device status and one green LED for the status of the communication interface enable different device statuses to be displayed Pilot valve system The actuating system consists of two solenoid valves ...

Page 14: ...f one chamber aerates the other chamber and vice versa No spring is installed in the actuator for this variant For the positioner Type 8791 two basic device variants are offered which differ in terms of the attachment option and the position sensor NAMUR device variant An internal device position sensor is used which is designed as a rotary potentiometer The positioner is mounted directly on the a...

Page 15: ... mounting options NAMUR mounting on rotary actuator NAMUR mounting with mounting bracket on a linear actuator Remote mounting with fastening bracket Remote mounting on standard rail Table 1 Overview of mounting options Type 8791 REV 2 english ...

Page 16: ...ce enable different device statuses to be displayed The pilot valve system for single and double acting actuators consists of two solenoid valves 6 1 Illustration Mechanical position indicator Display module with two LEDs Working port 2 Connection A2 Pressure port 1 4 7 bar Connection P Working port 1 Connection A1 Exhaust port Exhaust filter Internal position sensor Shaft for position sensor Cabl...

Page 17: ...sensor Positioner Pilot valve system 1 2 Position set point value Exhaust air Positioner Type 8791 Valve proportional valve with single acting actuator Actual position Fig 2 Positioner Type 8791 functional diagram For the remote variant the position sensor is connected directly to the valve outside of the posi tioner and is connected to this using a cable Type 8791 REV 2 english ...

Page 18: ...the standard signal If there is a control difference Xd1 the actuator is aerated and vented via the pilot valve system In this way the position of the actuator is changed up to control difference 0 Z1 is a disturbance Valve opening Valve Pilot valve system Position sensor Positioner Position set point value CMD Xd1 B1 E1 PK Z1 POS Position control loop Fig 3 Positioner signal flow plan Type 8791 R...

Page 19: ...l büS IO Link 4 20 mA factory setting 0 20 mA DIR CMD SPLTRNG 1 CHARACT CUTOFF X TIME 1 DIR ACT 1 X LIMIT 1 X CONTROL DBND POS CMD CMD 1 Can only be activated with com munication software Fig 4 Schematic presentation of the position control Type 8791 REV 2 english ...

Page 20: ... characteristic can be executed see Chapter 9 3 2 DIP switch function Inversion of direction set point value DIR CMD Reversal of the effective direction of the set point value see Chapter 9 3 2 DIP switch function Table 2 Basic functions Basic functions Activation with keys or communication software Function Effect Standard signal2 INPUT Selection of the standard set point value signal Automatic c...

Page 21: ...troke limitation X LIMIT Limitation of mechanical stroke range Actuating time limit X TIME Limit of control speed Control parameters X CONTROL Parametrisation of the positioner Safety position SAFEPOS Definition of safety position Cable break detection3 SIG ERROR Signal level error detection configuration Digital input3 BINARY IN Digital input configuration Analogue output3 OUTPUT Configuration of...

Page 22: ...erated in the 3 conductor or 4 conductor connection type i e the supply voltage 24 V DC is separate from the set point value signal Input for position set point value6 4 20 mA corresponds to 0 100 depending on the position of DIP switch 1 Digital input6 When applying a voltage 10 V safety position SAFEPOS becomes active i e the valve is moved into safety position factory setting can be changed wit...

Page 23: ... the device outdoors protect it from adverse weather conditions Ensure that ambient temperature does not exceed or drop below the permitted ambient temperature Ambient temperature See type label Degree of protection IP65 IP677 to EN 60529 only when cables or plugs and sockets connected correctly 7 When using the positioner under IP67 conditions the exhaust filter see Fig 1 Structure positioner Typ...

Page 24: ...ccording to DIN EN 61140 VDE 0140 1 Connections 2 cable glands M20 x 1 5 with screw type terminals 0 14 1 5 mm2 or circular plug in connectors M12 8 pin Operating voltage 24 V DC 25 max residual ripple 10 Current consumption max 190 mA Power consumption max 3 5 W Input resistance for set point value signal 75 Ω at 0 4 20 mA Resolution 12 bit Analogue position feedback max burden load for current o...

Page 25: ...4 V DC 25 according to specification Current consumption System supply Pin 1 3 max 50 mA Actuator supply Pin 2 5 max 120 mA Total power consumption max 3 5 W 8 Actuator supply is galvanically isolated from the system supply in accordance with IEC 60664 and for electrical safety in accordance with SELV from IEC 61010 2 201 8 5 3 Electrical data büS Protection class III according to DIN EN 61140 VDE...

Page 26: ...re range 0 60 C Pressure range 1 4 7 bar Air flow rate Universal air flow rate 50 lN min at 1 4 bar3 for aeration and venting Single and double acting 150 lN min at 6 bar3 for aeration and venting QNn 100 lN min according to definition with pressure drop from 7 to 6 bar absolute Low air flow rate QNn 7 lN min according to definition with pressure drop from 7 to 6 bar single acting absolute Connect...

Page 27: ...h Fig 7 univ air flow rate up Low air flow rate not defined down Pneumatic connection in accordance with Fig 8 up down Lower chamber Upper chamber double acting Control function I Pneumatic connection see Fig 9 not defined up lower chamber of the actuator on A2 down upper chamber of the actuator on A2 Table 5 Safety end positions Pneumatic connection description for Table 5 Single acting actuators...

Page 28: ...troke limitation top 0 100 X TIME Function disabled Actuating time open Actuating time close 1 s Values determined by X TUNE 1 s Values determined by X TUNE After executing RESET 1 s X CONTROL Dead band Open amplification factor Close amplification factor 1 0 1 Values determined by X TUNE 1 Values determined by X TUNE After executing RESET 1 SAFEPOS Safety position 0 SIG ERROR11 Function disabled ...

Page 29: ...software or fieldbus communication AUTOMATIC AUTO Normal controlled operation is executed and monitored in AUTOMATIC operating state MANUAL In MANUAL operating state the valve can be manually opened or closed using the keys DIP switch 4 changes between the 2 operating states AUTOMATIC and MANUAL see Chapter 9 3 2 DIP switch function 9 3 Operating and display elements of the positioner To be able t...

Page 30: ...ur screws on the housing cover and remove the housing cover MANUAL operating state DIP switch 4 set to ON Key Function 1 Aeration manual opening closing of the actuator 12 2 Venting manual opening closing of the actuator 12 1 and 2 simul Press for longer than 10 s 30 s LED 2 flashes at 5 Hz device restart Longer than 30 s LED 2 flashes at 10 Hz Reset device to factory setting 12 Dependent on the c...

Page 31: ...of the set point value CUTOFF OFF No sealing function 3 ON Correction characteristic for adjusting the operating characteristic linearization of the operating characteristic CHARACT 14 OFF Linear characteristic 4 ON MANUAL operating state OFF AUTO operating state 13 Factory setting can be changed with communication software 14 The characteristic type can be changed with communication software Tabl...

Page 32: ...e to display the device status and valve position NAMUR operation mode Valve mode Valve mode and warnings factory setting Fixed colour LED off The LED operation mode and valve position colours can be set using the Bürkert Communicator IO Link The LED operation mode and valve position colours can also be set using an acyclic IO Link parameter see parameter list You can find the description for sett...

Page 33: ...t white15 16 closed is lit green15 Table 12 Valve mode warnings normal operation If several device statuses exist simultaneously the highest priority device status is displayed Valve position Device status Failure Function check Outside the specification Maintenance required State colour State colour State colour State colour open flashes red flashes orange flashes yellow flashes blue alternately ...

Page 34: ... possible Yellow 3 Outside the specification The environment conditions or process conditions for the device are not within the specified range Blue 2 Maintenance required The device is in normal operation but one function will soon be restricted Perform device maintenance Green 1 Diagnostics active Device is in error free operation Status changes are highlighted in colour Messages are sent via an...

Page 35: ...perature Contact Bürkert Service if problem persists Low temperature detected Device temperature too low for operation Increase ambient temperature Overvoltage detected Supply voltage too high for device operation Check supply voltage Undervoltage detected Supply voltage failure or supply voltage too low for device operation Check supply voltage Contact Bürkert Service if problem persists Persiste...

Page 36: ...heck compressed air supply Execute X TUNE again Actuator supply failed The actuator supply voltage is too low Only for IO Link Check actuator supply voltage POS monitor The target position has not been reached The message is parameterisable Execute X TUNE Check compressed air supply CMD cable break Cable break in the set point value signal The message is parameterisable Check signal line of set po...

Page 37: ... CUTOFF Sealing function for positioners 2 Sealing function off Sealing function on Characteristic correction CHARACT Selection of the transfer charac teristic between input signal and stroke correction characteristic 3 Linear characteristic Correction characteristic Table 18 DIP switch basic functions The following basic functions can be activated or changed with keys or the communication softwar...

Page 38: ...ch Position Function 1 ON Reversal of the effective direction of the set point value DIR CMD 20 4 mA corresponds to 0 100 dropping OFF Normal effective direction of the set point value set point value 4 20 mA corresponds to position 0 100 increasing Table 20 DIP switch 1 The effective direction DIR CMD can only be changed with DIP switch 1 in the positioner Target position Input signal INPUT risin...

Page 39: ...TOFF OFF No sealing function Table 21 DIP switch 2 The limits for the position set point value in per cent can be changed with the communication software The switch position of the DIP switch in the positioner takes precedence over the communication software i e sealing function CUTOFF settings which are changed with the communication software are only active if DIP switch 2 is set to ON in the po...

Page 40: ...position of the DIP switch in the positioner takes precedence over the communication software i e settings of the correction characteristic CHARACT which are changed with the communication software are only active if DIP switch 3 is set to ON in the positioner Characteristics that can be selected with the communication software Characteristic curve Description Linear Linear characteristic 1 25 Equ...

Page 41: ...ke s The properties of the pipelines pumps and consumers are included in this characteristic It therefore has a different shape to the flow characteristic Position set point value Standardised valve stroke Fig 15 Characteristic curve In the case of positioning for closed loop controls special requirements are usually placed on the course of the operating characteristic e g linearity For this reaso...

Page 42: ...wo adjacent supporting points must not be greater than 20 Example of a programmed characteristic Valve stroke Standard signal 10 20 30 40 50 60 70 80 90 100 10 20 30 40 50 60 70 80 90 100 0 4 20 mA 0 20 mA Fig 16 Example of a programmed characteristic 10 1 4 INPUT Input of standard signal only variant without fieldbus communication This function is used to set the input signal for the set point va...

Page 43: ...tentionally NOTE Avoid incorrect controller adjustment due incorrect pressure supply or activated operating medium pressure Always execute X TUNE in case of pressure supply pneumatic auxiliary power present in later operation Ideally execute the X TUNE function without operating medium pressure to prevent interference as a result of flow forces To execute X TUNE the positioner must be in AUTOMATIC...

Page 44: ...Stroke limitation X LIMIT Limitation of mechanical stroke range Actuating time limit X TIME Limit of control speed Control parameters X CONTROL Parametrisation of the positioner Safety position SAFEPOS Entry of safety position Cable break detection21 SIG ERROR Signal level error detection configuration Digital input21 BINARY IN Activation of digital input Analogue output21 OUTPUT Configuration of ...

Page 45: ...pressurisation state of the actuator and the actual position Factory setting off rising Rising Direct effective direction vented 0 aerated 100 dropping Inverse effective direction vented 100 aerated 0 Actual position State of pressurisation vented aerated rising falling Fig 17 Diagram DIR ACT Type 8791 REV 2 english ...

Page 46: ...25 100 This function limits the position set point value range of the positioner by setting a minimum and maximum value This makes it possible to split a used standard signal range 4 20 mA 0 20 mA into several positioners without or with overlap In this way several valves can be used alternately or simultaneously for overlapping set point value ranges as proportional valves Splitting of one standa...

Page 47: ...g Bottom stroke limitation 0 Top stroke limitation 100 Setting ranges Bottom stroke limitation 0 50 of the total stroke Top stroke limitation 50 100 of the total stroke The minimum distance between the bottom and top stroke limitation is 50 i e when a value is entered whose minimum distance is 50 the other values are automatically adapted Limited stroke Unlimited stroke Physical stroke Limited str...

Page 48: ...ry set values through the X TUNE function If the control speed is to be reduced values can be entered for Open and Close which lie between the minimal values to be determined by X TUNE and 60 s Actuating time Open Opening time for the whole stroke in seconds Setting range 1 60 seconds Actuating time close Closing time for the whole stroke in seconds Adjustment range 1 60 seconds Effect of a limit ...

Page 49: ...rmined in this way is a guide value It can be readjusted manually Position set point value Control difference Xd1 Actual position to the controller Xd1 Dead band Xd1 Xd1 Fig 21 Diagram X CONTROL Open close amplification factor Parameter of the positioner Open amplification factor Amplification factor of the positioner for closing the valve Close amplification factor Amplification factor of the pos...

Page 50: ...ety position SAFEPOS function When an error is detected the actuator moves to the position set under safety position Inactive safety position SAFEPOS function When an error is detected the actuator moves into the end position that it would take in de energised state 10 2 8 BINARY IN Configuring the digital input only for variants without fieldbus communication The following settings can be configu...

Page 51: ...point value CMD Issuing of the set point value Standard signal 4 20 mA Selection of the standard signal 0 20 mA 10 2 10 Setting LED operation mode device status User level installer Factory setting valve mode warnings Menu or function Values or description Device General settings Parameter Status LED Operation mode NAMUR operation mode Valve operation mode Valve operation mode warnings Fixed colou...

Page 52: ...ety instructions WARNING Risk of injury due to improper installation Installation may be carried out by authorised technicians only and with the appropriate tools Risk of injury due to unintentional activation of the system and uncontrolled restart Secure system against unintentional activation Ensure a controlled restart after installation Type 8791 REV 2 english ...

Page 53: ...ece 4 1 Driver pin 5 1 Conical roller 6a 1 NAMUR lever for stroke range 3 35 mm 6b 1 NAMUR lever for stroke range 35 130 mm 7 2 U bolt 8 4 Hexagon bolt DIN 933 M8x20 9 2 Hexagon bolt DIN 933 M8x16 10 6 Spring lock washer DIN 127 A8 11 6 Washer DIN 125 B8 4 12 2 Washer DIN 125 B6 4 13 1 Spring VD 115E 0 70 x 11 3 x 32 7 x 3 5 14 1 Spring washer DIN 137 A6 15 1 Locking washer DIN 6799 3 2 16 3 Sprin...

Page 54: ...rolled restart Secure system against unintentional activation Ensure a controlled restart after installation Procedure Mount the hoop on the actuator spindle using the clamping pieces hexagon bolts and spring lock washers 3 3 17 17 2 2 16 16 Fig 22 Hoop installation Select a short or long lever according to the stroke of the actuator see Table 25 Attachment kit on linear actuators no 6a 6b Assembl...

Page 55: ...sensor angular range The maximum angular range of the position sensor is 180 Rotational range of the lever To ensure that the position sensor works with good resolution the rotational range must be between 30 and 120 The scale printed on the lever is not relevant Rotational range of the lever Ideal 60 Minimum 30 Maximum 120 120 Maximum rota tional range of the lever 60 Fig 24 Rotational range of t...

Page 56: ... the position sensor in the hoop must be able to move freely along the entire stroke range of the actuator At 50 stroke the lever position should be approximately horizontal see Chapter 11 2 4 Aligning the lever mechanism M8 thread Fig 25 Attaching the mounting bracket Attaching the positioner with the mounting bracket for actuators with a cast frame Attach the mounting bracket to the cast frame u...

Page 57: ...27 Attaching the positioner with the mounting bracket for actuators with a columnar yoke 11 2 4 Aligning the lever mechanism The lever mechanism cannot be correctly aligned until the device has been electrically and pneu matically connected Move the actuator in manual mode to half stroke according to the scale on the actuator Adjust the height of the positioner until the lever is horizontal Fix th...

Page 58: ...s Additional accessory parts The assembly bridge with fastening screws in accordance with VDI VDE 3845 can be obtained from Bürkert as an accessory under order number 770294 11 3 2 Installation WARNING Risk of injury due to improper installation Installation may be carried out by authorised technicians only and with the appropriate tools Risk of injury due to unintentional activation of the system...

Page 59: ...cure the setscrew with self locking nuts 90 Ideal position for the rotational range of the levelled shaft min 30 max 180 The rotational movement of the levelled shaft must be within the position sensor angular range of 180 Levelled shaft 180 Maximum rota tional range Fig 28 Angular range anti twist safeguard Assemble the multi part assembly bridge22 suitable for the actuator Attach the assembly br...

Page 60: ...g 29 Attaching assembly bridge schematic representation Place the positioner with the assembly bridge on the rotary actuator and attach it using four hexagon bolts 6 see Fig 30 Fig 30 Rotary actuator attachment Type 8791 REV 2 english ...

Page 61: ...sensor The Type 8798 remote sensor is connected using a serial digital interface 11 4 1 Attachment accessories There are two options for attaching the positioner in remote operation see Fig 31 Installation on a standard rail Holder for standard rail installation Order number 675702 Wall installation Hoop for wall installation order number 675715 Fig 31 Attachment types in remote operation Type 879...

Page 62: ...ion Ensure a controlled restart after installation Connect the four wires of the sensor cable to the screw type terminals of the positioner intended for this see Chapter 13 3 6 Terminal assignment for external position sensor only for remote variant Mount the remote sensor on the actuator The proper procedure is described in the quickstart for the Type 8798 remote sensor Pneumatically connect the ...

Page 63: ...lation Installation may be carried out by authorised technicians only and with the appropriate tools Risk of injury due to unintentional activation of the system and uncontrolled restart Secure system against unintentional activation Following installation ensure a controlled restart Working port 2 Connection A2 Pressure port 1 4 7 bar Connection P Working port 1 Connection A1 Exhaust port Fig 32 ...

Page 64: ...g ports A1 and A2 to the respective chamber of the double acting actuator For safety end positions see Chapter 8 7 Safety end positions after failure of the electrical or pneumatic auxiliary power Important information for perfect control behaviour To prevent the control behaviour in the upper stroke range from being negatively influenced by a small pressure difference Keep the applied supply pres...

Page 65: ...ons for electrical devices WARNING Risk of injury due to improper installation Installation may be carried out by authorised technicians only and with the appropriate tools Risk of injury due to unintentional activation of the system and uncontrolled restart Secure system against unintentional activation Following installation ensure a controlled restart 13 2 Electrical installation with circular ...

Page 66: ... diffe rential input i e the GND lines of the set point value input and the supply voltage are not identical Note if the GND signals of the set point value input and the supply voltage are connected the 3 con ductor connection type must be set in the software The set point value input is linked to the GND line of the supply voltage i e set point value input and supply voltage share a GND line 1 2 ...

Page 67: ...e available as an accessory with ID No 919061 Table 30 Pin assignment operating voltage 13 3 Electrical installation with cable gland 13 3 1 Designation of screw type terminals 11 12 81 82 31 32 A B 24 V GND Remote sensor Fig 34 Designation of screw type terminals 13 3 2 Connection of terminals Unscrew the four screws on the housing cover and remove the cover The screw type terminals are now acces...

Page 68: ... as a diffe rential input i e the GND lines of the set point value input and the supply voltage are not identical Note if the GND signals of the set point value input and the supply voltage are connected the 3 con ductor connection type must be set in the software The set point value input is linked to the GND line of the supply voltage i e set point value input and supply voltage share a GND line...

Page 69: ...remote variant Terminal Assignment Device end External circuit signal level S Sensor supply S Remote sensor Type 879823 S Sensor supply S A Serial interface A line A A line B Serial interface B line B B line 23 For assignment of wire colour see Table 36 Table 35 Terminal assignment external position sensor Positioner terminal Wire colour Remote sensor with cable type 1 Wire colour Remote sensor wi...

Page 70: ...Assignment 1 L 24 V DC System supply 2 P24 24 V DC Actuator supply 3 L 0 V GND System supply 4 C Q IO Link Communication 5 N24 0 V GND Actuator supply Table 38 Pin assignment port class B 14 1 Connection assignment for external position sensor only for remote variant 4 2 1 3 Fig 36 Pin assignment socket 4 pin Pin Assignment Device end External circuit signal level 1 Sensor supply S Remote sensor T...

Page 71: ...ositioner pin Wire colour Remote sensor with cable type 1 Wire colour Remote sensor with cable type 2 1 brown brown 2 white black 3 green red 4 yellow orange Table 40 Assignment of wire colour on the remote sensor Type 8791 REV 2 english ...

Page 72: ...vice 15 1 Connection assignment for external position sensor only for remote variant 4 2 1 3 Fig 37 Pin assignment socket 4 pin Pin Assignment Device end External circuit signal level 1 Sensor supply S Remote sensor Type 879825 2 Sensor supply S 3 Serial interface A line A A line 4 Serial interface B line B B line 25 For assignment of wire colour see Table 43 Table 42 Pin assignment external posit...

Page 73: ...ter installation 16 2 1 Execute the X TUNE automatic adjustment WARNING Risk from changing the valve position when executing the X TUNE function If X TUNE is operated under operating pressure there is an acute risk of injury Never execute X TUNE when a process is running Secure the system against unintentional activation NOTE Avoid incorrect controller adjustment from incorrect supply pressure or ...

Page 74: ...h Bürkert Communicator You can find the settings in Bürkert Communicator in the operating instructions 16 3 1 Connecting the IO Link device to the Bürkert Communicator Necessary components Communication software Bürkert Communicator for PC USB büS interface set see accessories büS adapter for communication interface see accessories A büS cable extension if necessary see accessories To connect the ...

Page 75: ...ürkert Communicator Configure settings 16 3 2 Connecting the büS device to the Bürkert Communicator Necessary components Communication software Bürkert Communicator for PC USB büS interface set see accessories Make the connection to the PC with the USB büS interface set Start the Bürkert Communicator Configure settings Type 8791 REV 2 english ...

Page 76: ...k master and using the Bürkert Communicator via the communication interface 17 2 Technical data IO Link IO Link specification V1 1 2 Supply via IO Link M12 x 1 5 pin A coded Port class A or B SIO mode No IODD file See Internet VendorID 0x0078 120 DeviceID See IODD file ProductID 8791 Transmission speed COM3 230 4 kbit s PD input bits 80 PD output bits 40 M sequence cap 0x0D Min cycle time 5 ms Dat...

Page 77: ...s developed by Bürkert with a communication protocol based on CANopen 18 2 Configuring the fieldbus The necessary start up files and the description of the objects are available online Download at www burkert com Type 8791 Software Type 8791 REV 2 english ...

Page 78: ...tware Info at www buerkert de USB büS interface set USB büS interface set 2 büS stick 0 7 m cable with M12 plug 772551 büS adapter for communication interface M12 to büS service interface micro USB 773254 büS cable extension M12 plug to M12 socket length 1 m 772404 büS cable extension M12 plug to M12 socket length 3 m 772405 büS cable extension M12 plug to M12 socket length 5 m 772406 büS cable ex...

Page 79: ...ion Observe permitted storage temperature ATTENTION Incorrect storage may damage the device Store the device in a dry and dust free location Storage temperature 20 65 C Environmentally friendly disposal Follow national regulations regarding disposal and the environment Collect electrical and electronic devices separately and dispose of them as special waste Further information country burkert com ...

Page 80: ...80 Type 8791 REV 2 english ...

Page 81: ...www burkert com ...

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