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System description

SYSTEM DESCRIPTION

5.1

Structure and function

The control head Type 8695 can control single or double-acting process valves.

The control head Type 8695 has been optimized for the integrated modular fitting of series 21xx process valves

(ELEMENT) with actuator size

∅

50. Various expansion stages are possible thanks to the modular design.

For installation on the 20xx series (CLASSIC) there is a special model which is described in chapter “5.1.2”

The valve position is recorded via a contactless, analog sensor element which automatically detects and saves

the valve end positions by means of the teach function during start-up.
Variants:

•

without fieldbus communication: 24 V device with digital inputs and outputs and büS service interface

•

AS Interface

•

IO-Link

•

büS

5.1.1

Control head for integrated installation on 21xx series

(ELEMENT)

Electrical connection

Circular plug-in connector

M12 x 1

Air exhaust port

(label: 3)

Pressure limiting valve

(for protection against too

high internal pressure in

case of error)

Pilot air port

(label: 1)

Fastening screws (2 x)

View without transparent cap:

Basic housing

Status indicator (RGB LED)

ASi PWR-LED (green)

ASi FAULT-LED (red)

Key 2

Key 1

büS service interface

Inv.ValveDir. LED

Manual LED

Pilot LED

Figure 1:

Structure

english

Type 8695 REV.3

Содержание 8695 Series

Страница 1: ...Operating Instructions Type 8695 REV 3 Control Head ...

Страница 2: ...the right to make technical changes without notice Technische Änderungen vorbehalten Sous réserve de modifications techniques Bürkert Werke GmbH Co KG 2022 Operating Instructions 2209 00_EU EN_00815434 Original DE ...

Страница 3: ...EM DESCRIPTION 11 5 1 Structure and function 11 5 1 1 Control head for integrated installation on 21xx series ELEMENT 11 5 1 2 Model for control of process valves belonging to the 20xx series CLASSIC 12 6 TECHNICAL DATA 13 6 1 Standards and directives 13 6 2 Licenses 13 6 3 Operating conditions 13 6 4 Mechanical data 14 6 5 Type labels 14 6 5 1 Type label standard 14 6 5 2 UL type label 14 6 5 3 U...

Страница 4: ...eries 20xx 30 8 PNEUMATIC INSTALLATION 31 9 ELECTRICAL INSTALLATION 33 9 1 Safety instructions 33 9 2 Electrical installation without fieldbus communication 34 9 3 Electrical installation IO Link port class B and port class A 35 9 4 Electrical installation büS 35 9 5 Electrical installation AS Interface 36 9 5 1 Connection with circular plug in connector M12 x 1 4 pin 36 9 5 2 Connection with mult...

Страница 5: ... 51 11 3 Status indicator 54 11 4 Description of the LED modes 55 11 4 1 Valve mode 55 11 4 2 Valve mode and error 55 11 4 3 Valve mode and warnings 56 11 4 4 NAMUR mode 57 11 4 5 Fixed colour 57 11 4 6 LED off 57 11 5 Manual actuation of the actuator with pilot valve 58 11 6 Setting the LED mode status indicator 60 12 SAFETY END POSITIONS 61 13 MAINTENANCE 61 14 DISASSEMBLY 62 14 1 Safety instruc...

Страница 6: ...6 17 STORAGE 65 18 DISPOSAL 65 english Type 8695 REV 3 ...

Страница 7: ...ible danger Failure to observe the warning may result in moderate or minor injuries ATTENTION Warns of damage to property Failure to observe the warning may result in damage to device or system Indicates important additional information tips and recommendations Refers to information in these operating instructions or in other documentation Indicates an instruction for risk prevention Indicates a p...

Страница 8: ...en using the device observe the permitted data operating conditions and application conditions This information can be found in the contractual documents the operating instructions and on the type label Use the device only in conjunction with third party devices and components recommended and autho rized by Bürkert Do not use the device outdoors without protection from the weather In potentially e...

Страница 9: ...revent unintentional activation Only trained technicians may perform installation and maintenance work Perform installation and maintenance with suitable tools only Do not make any changes to the device and do not subject it to mechanical stress Operate the device only in perfect state and in consideration of the operating instructions Observe the general rules of technology Install the device acc...

Страница 10: ...net at www burkert com 4 2 Warranty The warranty is only valid if the control head Type 8695 is used as intended in accordance with the specified application conditions 4 3 Trademarks Brands and trademarks listed below are trademarks of the corresponding companies associations organizations Loctite Henkel Loctite Deutschland GmbH 4 4 Information on the internet The operating instructions and data ...

Страница 11: ...tomatically detects and saves the valve end positions by means of the teach function during start up Variants without fieldbus communication 24 V device with digital inputs and outputs and büS service interface AS Interface IO Link büS 5 1 1 Control head for integrated installation on 21xx series ELEMENT Electrical connection Circular plug in connector M12 x 1 Air exhaust port label 3 Pressure lim...

Страница 12: ...ead Type 8695 to be attached to process valves belonging to the 20xx series This model has a different pneumatic connection module so that the pilot air ports can be connected to the outside of the actuator see Figure 2 Pilot air outlet 22 Pilot air outlet 21 Figure 2 Model for control of process valves 20xx series english Type 8695 REV 3 ...

Страница 13: ...s The product is cULus approved Instructions for use in the UL area see chapter 6 7 Electrical data 6 3 Operating conditions WARNING Solar radiation and temperature fluctuations may cause malfunctions or leaks If the device is used outdoors do not expose it unprotected to the weather conditions Ensure that the permitted ambient temperature does not exceed the maximum value or drop below the minimu...

Страница 14: ...Ingelfingen W14UN Order number Supply voltage or fieldbaus control Max operating pressure Type Control function pilot valve Barcode Serial number CE marking Ambient temperature version Figure 3 Type label example 6 5 2 UL type label 8695 E1 0 PU02 Single act Pilot 0 6 24V Pmax 7 bar Tamb 10 55 C REV 2 S N 1001 00123456 D 74653 Ingelfingen W15MA Order number manufacture code Max operating pressure ...

Страница 15: ...s 7 max particle size 40 µm max particle density 10 mg m Water content Class 3 max pressure dew point 20 C or min 10 C below the lowest operating temperature Oil content Class X max 25 mg m Temperature range 10 50 C Pressure range 3 7 bar Air output of pilot valve 7 lN min for aeration and deaeration QNn value according to definition for pressure drop from 7 to 6 bar absolute Connections 21xx ELEM...

Страница 16: ... 15 30 V as per EN 61131 2 Type 1 Power consumption incl load on one active digital output 2 W 5 W Communication software Bürkert Communicator 6 7 2 Electrical data IO Link Protection class III as per DIN EN 61140 VDE 0140 1 Connection Supply IO Link Circular plug in connector M12 x 1 5 pin port class A Circular plug in connector M12 x 1 5 pin port class B Communication büS service interface Opera...

Страница 17: ...ace Protection class III as per DIN EN 61140 VDE 0140 1 Connection Supply AS Interface Circular plug in connector M12 x 1 4 pin Communication büS service interface Operating voltage System supply AS Interface Pin 1 3 via AS Interface power supply unit according to specification with 29 5 V 31 6 V Power consumption Output pilot valve approx 0 8 W incl integrated watchdog function Current consumptio...

Страница 18: ...nk M12 x 1 5 pin A coded SIO mode No IODD file see Internet VendorID 0x0078 120 DeviceID see IODD file ProductID 8695 Class A 8695 Class B Transmission speed COM3 230 4 kbit s PD Input Bits 56 PD Output Bits 8 M sequence Cap 0x0D Min cycle time 5 ms Data Storage Yes Max cable length 20 m english Type 8695 REV 3 ...

Страница 19: ...ls Risk of injury from unintentional activation of the system and an uncontrolled restart Secure system from unintentional activation Following assembly ensure a controlled restart 7 2 Installation of the control head Type 8695 on process valves of series 21xx ELEMENT ATTENTION When mounting on process valves with a welded connection follow the installation instructions in the operating instructio...

Страница 20: ...rcut When installing the switch spindle do not damage the groove ring Push the switch spindle through the guide element ATTENTION Screw locking paint may contaminate the groove ring 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 co...

Страница 21: ...the O rings are correctly positioned in the pilot air ports When the control head is being installed the collets of the pilot air ports must not be fitted to the actuator Installation of the form seal Form seal Pilot air ports Caution Collets must not be fitted Figure 8 Installation of the sealing rings english Type 8695 REV 3 ...

Страница 22: ...nd the control head until 1 the puck can be inserted into the guide rail of the control head and 2 the connection pieces of the control head can be inserted into the pilot air ports of the actuator Connection pieces Pilot air ports actuator Guide rail Puck Guide rail Puck Connection pieces Figure 9 Aligning the puck and the connection pieces english Type 8695 REV 3 ...

Страница 23: ...ensure degree of protection IP65 IP67 The fastening screws may be tightened to a maximum torque of 1 5 Nm only Attach the control head to the actuator using the two side fastening screws In doing so tighten the screws only hand tight maximum torque 1 5 Nm Connection pieces Pilot air ports actuator Fastening screws max 1 5 Nm Figure 10 Installation of control head english Type 8695 REV 3 ...

Страница 24: ...Puck Switch spindle Spindle actuator Figure 12 Installation of the switch spindle 2 series 20xx Press the O ring downwards into the cover of the actuator Manually screw the switch spindle and the plugged on guide element together with the plastic part onto the spindle of the actuator but do not tighten spindle yet Tighten the guide element with a face wrench3 into the actuator cover maximum torque...

Страница 25: ...way that it is inserted into the guide rail of the control head Press the control head all the way down as far as the actuator and turn it into the required position Ensure that the pneumatic connections of the control head and those of the valve actuator are situated preferably vertically one above the other see Figure 14 Installing the control head series 20xx If they are positioned differently ...

Страница 26: ...screwing in the fastening screw does not ensure degree of protection IP65 IP67 The fastening screws may be tightened to a maximum torque of 1 5 Nm only Attach the control head to the actuator using the two side fastening screws In doing so tighten the fas tening screws hand tight only maximum torque 1 5 Nm english Type 8695 REV 3 ...

Страница 27: ...NTION Damage or malfunction due to ingress of dirt and moisture To comply with degree of protection IP65 IP67 connect the pilot air outlet only for CFA or CFB 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 the control head Type 8695 are isolated or not actuated Control function A CFA Process valve closed in rest ...

Страница 28: ...ol function B As a result the spring chamber of the actuator is supplied with dry air from the vent duct of the control head 7 4 Rotating the actuator module on process valves of series 2100 2101 2000 and 2012 The actuator module control head and actuator can be rotated for globe valves and angle seat valves belonging to series 2100 2101 2000 and 2012 only The process valve must be in the open pos...

Страница 29: ...xagon Series 2000 and 2012 Figure 16 Rotating the actuator module Using a suitable open end wrench counter the wrench flat on the pipe 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 Rotate the actuator module counter clockwise only see Figure 17 R...

Страница 30: ...umatic connection between the control head and the actuator Loosen the fastening screws countersunk in the side of the body hexagon socket wrench size 2 5 Rotate the control head into the required position ATTENTION Too high torque when screwing in the fastening screw does not ensure degree of protection IP65 IP67 The fastening screws may be tightened to a maximum torque of 1 5 Nm only Tighten the...

Страница 31: ... of the system and an uncontrolled restart Secure system from unintentional activation Following installation ensure a controlled restart Procedure Connect the control medium to the pilot air port 1 3 7 bar instrument air free of oil water and dust Attach the exhaust airline or a silencer to the exhaust air port 3 Important information for the problem free functioning of the device The installatio...

Страница 32: ...on Pilot air port label 1 Exhaust air port label 3 Figure 19 Pneumatic connection Air exhaust concept In compliance with degree of protection IP67 an air exhaust line must be installed in the dry area english Type 8695 REV 3 ...

Страница 33: ...ns for electrical equipment WARNING Risk of injury from improper installation Installation may be carried out by authorized technicians only and with the appropriate tools Risk of injury from unintentional activation of the system and an uncontrolled restart Secure system from unintentional activation Following installation ensure a controlled restart Minimum temperature rating of the cable to be ...

Страница 34: ...tuator activated DO2 2 brown Digital output end position with actuator deactivated DO1 3 green Operating voltage GND 3 4 GND 24 V 4 yellow Operating voltage 24 V DC 5 grey Digital input valve control Valve 5 6 24 V GND 6 pink Digital input valve control Valve 7 not assigned 8 not assigned Table 3 Connection with circular plug in connector Connect the control head according to the table 4 The indic...

Страница 35: ...24 V DC System supply 2 Not assigned 3 L 0 V GND System supply 4 C Q IO Link 5 Not assigned Table 5 Pin assignment port class A 9 4 Electrical installation büS 1 2 3 4 5 Figure 21 Pin assignment Pin Wire color Configuration 1 CAN plate shielding CAN plate shielding 2 red 24 V DC 25 max residual ripple 10 3 black GND CAN_GND 4 white CAN_H 5 blue CAN_L Table 6 Pin assignment For electrical installat...

Страница 36: ...lar plug in connector M12 x 1 4 pin 4 1 3 2 Bus NC NC Bus Table 7 Pin assignment Pin Designation Configuration 1 Bus AS Interface bus line 2 NC not assigned 3 Bus AS Interface bus line 4 NC not assigned Table 8 Pin assignment of circular plug in connector for AS Interface english Type 8695 REV 3 ...

Страница 37: ...terminal The multi pole cable features a ribbon cable terminal with M12 plug in connector branch circuit for ASIn terface cable harness The ribbon cable terminal contacts the AS Interface cable harness by means of pen etration technology which allows installation by clipping in the AS Interface cable harness without cutting and without removing insulation Screws M12 plug in con nector branch circu...

Страница 38: ...he status indicator are assigned to the valve positions Valve position Status indicator Actuator position Valve open is lit green Actuator deactivated Valve closed is lit yellow Actuator activated Table 9 Factory settings Depending on the device combination of actuator type and valve type it follows whether the process valve direction must be inverted so that the valve position closed open can be ...

Страница 39: ...ure 25 Operating and display elements 0 s 10 s 30 s Inv ValveDir LED process valve direction inversion 2 2 enabled disabled Figure 26 Invert process valve direction Keep key 2 pressed for 10 s The green Inv ValveDir LED flashes for 10 s at 10 Hz When the green Inv ValveDir LED flashes for a shorter time release key 2 The valve direction inversion is enabled the green Inv ValveDir LED is lit The va...

Страница 40: ...ss is running Secure system from unintentional activation Important When the automatic or manual teach function is activated the actuator cannot be actuated via the communication interface 10 2 1 Automatic teach function For devices with pilot valve The teach function automatically identifies and saves the end positions of the valve With the IO Link and AS Interface variant the teach function can ...

Страница 41: ...key 1 for 5 s to start the automatic teach function The red manual LED and the green Inv ValveDir LED flash for 5 s at 5 Hz When the red manual LED and the green Inv ValveDir LED start flashing faster 10 Hz release key 1 within the next 5 s The status indicator flashes orange while the automatic teach function is running function check When the status indicator stops flashing orange the teach func...

Страница 42: ...e teach function can also be started via the bus com munication see respective parameter list or with all variants of the REV 3 versions with the Bürkert Communicator Essential requirements The device is mounted on the actuator The supply voltage is connected The compressed air supply is connected So that the correct reference conditions are identified the pilot pressure must correspond to the ope...

Страница 43: ...check Check whether the pneumatic actuator is in the deaerated unactuated end position Confirm this end position by briefly pressing key 1 Yellow Pilot LED is lit Move the pneumatic actuator into the aerated switched end position Confirm this end position by briefly pressing key 1 Yellow Pilot LED is not lit Air bleed the pneumatic actuator move to the unactuated end position When the status indic...

Страница 44: ...t switching has been carried out properly but it is ready for operation and outputs the end positions specified in the last properly carried out teach function via the digital outputs of the device Process description Enable teach in operation function with the communicator Device issues Warning until both end positions have been successfully determined The first end position is determined when th...

Страница 45: ...equired components Communications software Bürkert Communicator for PC USB büS interface set see accessories büS adapter for communication interface see accessories If necessary a büS cable extension see accessories Body casing Basic housing Actuator Transparent cap Figure 33 Opening or closing the device ATTENTION Breakage of the pneumatic connection pieces due to rotational impact When opening o...

Страница 46: ...o USB plug in büS service interface Establish connection to PC with USB büS interface set Starting Bürkert Communicator Implementing settings büS device Required components Communications software Bürkert Communicator for PC USB büS interface set see accessories Establish connection to PC with USB büS interface set Starting Bürkert Communicator Implementing settings english Type 8695 REV 3 ...

Страница 47: ...ntroller PLC via the IO Link master and with the Bürkert Communicator via the communication interface 10 5 Configuration of the fieldbus The required start up files and the description of the process data and acyclic parameters are available on the Internet Download from www burkert com Type 8695 Software 10 6 büS 10 6 1 Information büS büS is a system bus developed by Bürkert with a communication...

Страница 48: ...amming data I O Konfiguration B hex ID code A hex bit configuration see above Extended ID code 1 7 hex Extended ID code 2 E hex Profile S B A E Table 11 Programming data Bit configuration Data bit D3 D2 D1 D0 Input 0 End position not reached when actuator activated 1 End position reached when actuator activated 0 End position not reached when actuator deacti vated 1 End position reached when actua...

Страница 49: ...ion of the functions 1 Press for 5 10 s start automatic teach function Press for 10 s start manual teach function 2 Press briefly only in MANUAL operating state Switch pilot valve on off Press for 10 30 s Enable disable process valve direction inversion 1 and 2 Press both for 2 10 s Switch MANUAL AUTO Press both for 10 30 s Start device restart Press both for 30 s Reset device to factory settings ...

Страница 50: ...elease key start manual teach function Pilot LED yellow and Manual LED red and Inv ValveDir LED green All flash at 5 Hz for 10 30 s device restart started All flash at 10 Hz for 30 s the device is reset to factory settings AS Interface only ASi PWR LED green Display of ASi Power ASi FAULT LED red Display of ASi Fehler Table 14 Display elements 11 1 Operating state To operate the keys make sure tha...

Страница 51: ...elements Body casing Basic housing Actuator Transparent cap Figure 37 Open device Open or close the device Open the device NOTE Breakage of the pneumatic connection pieces due to rotational impact When unscrewing and screwing in the body casing do not hold the actuator of the process valve but the basic housing Unscrew the transparent cap in an anticlockwise direction Close the device NOTE Damage ...

Страница 52: ... Hz release keys 1 and 2 within the next 5 s MANUAL operating state the red manual LED is lit and the status indicator flashes orange AUTO operating state the red manual LED and the status indicator is not lit Switch pilot valve only possible in MANUAL operating state 0 s 5 s Pilot LED Pilot valve 2 2 on off Manual LED Operating state MANU Status indicator Figure 39 Switch pilot valve Briefly pres...

Страница 53: ...ed manual LED flashes more slowly again 5 Hz release keys 1 and 2 within the next 20 s The device will restart Factory reset 0 s 2 s 10 s Manual LED Inv ValveDir LED Factory reset 1 2 1 2 Pilot LED 30 s Figure 41 Factory reset Keep keys 1 and 2 pressed for 30 s The red manual LED flashes for approx 2 s at 5 Hz then at 10 Hz then again at 10 Hz When the red manual LED flashes faster again 10 Hz rel...

Страница 54: ...e user can set the following LED modes Valve mode Valve mode with error messages Valve mode with warnings factory setting NAMUR mode Fixed color LED off With the IO Link and AS Interface variant the teach function can also be started via the bus com munication see respective parameter list or with all variants of the REV 3 versions with the Bürkert Communicator The description for setting the LED ...

Страница 55: ...se green yellow orange red 11 4 2 Valve mode and error Displays in valve mode and error Valve position open half way closed Device status error Valve position Valve position status color Device status Error status color Open is lit yellow flashes red alternately with yellow Half way LED off flashes red alternately with LED off Closed is lit green flashes red alternately with green Table 16 Valve m...

Страница 56: ...ith yellow Half way LED off flashes orange alternately with LED off Closed is lit green flashes orange alternately with green Table 19 Valve mode and warnings device status Function control Valve position Valve position status color Device status Out of specification status color Open is lit yellow flashes yellow alternately with yellow Half way LED off flashes yellow alternately with LED off Clos...

Страница 57: ...vice or on its peripheral equipment Orange 4 Function check Work is being carried out on the device normal ope ration is therefore temporarily not possible Yellow 3 Out of specification Ambient conditions or process conditions for the device are outside the specified area Blue 2 Maintenance required The device is in normal operation although a function is briefly restricted Service device Green 1 ...

Страница 58: ...umatic connection pieces due to rotational impact When unscrewing and screwing in the body casing or transparent cap do not hold the actuator of the process valve but the basic housing To activate the device manually unscrew the body casing Manual activation ATTENTION The manual override may be damaged if it is simultaneously pressed and turned Do not press the manual override when turning it Pilo...

Страница 59: ...ual override when turning Caution If the pilot valves are actuated electrical control is not possible Move manual override to normal position before starting up the device Closing the device Body casing Basic housing Actuator Transparent cap Figure 45 Closing the device ATTENTION Damage or malfunction due to ingress of dirt or moisture To observe the degree of protection IP65 or IP67 Screw in body...

Страница 60: ...lues or description Device General settings Parameter Status LED Mode NAMUR mode Valve mode Valve mode errors Valve mode Warnings Fixed color LED off Setting the LED mode status indicator Status LED Mode Possible selection NAMUR mode Valve mode Valve mode error Valve mode warnings Fixed color LED off Select mode The mode is set english Type 8695 REV 3 ...

Страница 61: ...r failure of the auxiliary power electrical pneumatic up down single acting Control function A down down up down single acting Control function B up up up down double acting Control function B down not defined Table 23 Safety end positions 13 MAINTENANCE The control head Type 8695 is maintenance free when operated according to the instructions in this manual english Type 8695 REV 3 ...

Страница 62: ...ury from improper disassembly Disassembly may be carried out by authorized technicians only and with the appropriate tools Risk of injury from unintentional activation of the system and an uncontrolled restart Secure system from unintentional activation Following disassembly ensure a controlled restart 14 2 Disassembly the control head Procedure 1 Pneumatic connection DANGER Risk of injury from hi...

Страница 63: ...fety regulations for electrical equipment Loosen the circular plug in connector 3 Mechanical connection Loosen the fastening screws Remove the control head upwards Pneumatic connections Control head Actuator Fastening screws 2x Electrical connection circular plug in connector Pneumatic connection to the actuator Series 21xx Element Series 20xx Classic Figure 46 Disassembly the control head english...

Страница 64: ...th 1 m 772404 büS cable extension M12 pin to M12 socket length 3 m 772405 büS cable extension M12 pin to M12 socket length 5 m 772406 büS cable extension M12 pin to M12 socket length 10 m 772407 Table 24 Accessories 15 1 Communications software The PC operating program Bürkert Communicator is designed for communication with the devices Type 8695 If you have any questions regarding compatibility pl...

Страница 65: ... and cold which could result in temperatures above or below the permitted stor age temperature 17 STORAGE ATTENTION Incorrect storage may damage the device Store the device in a dry and dust free location Storage temperature 20 65 C 18 DISPOSAL Follow national regulations regarding disposal and the environment Collect electrical and electronic devices separately and dispose of them as special wast...

Страница 66: ...66 english Type 8695 REV 3 ...

Страница 67: ......

Страница 68: ...www burkert com ...

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