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ARCA 824 series Operating Manual

Electro-pneumatic positioners
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Operating manual
Electro-pneumatic positioners
Series 824
09.2018 / 1.0

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Summary of Contents for ARCA 824 series

  • Page 1 Operating manual Electro-pneumatic positioners Series 824 09.2018 / 1.0...
  • Page 2 Original instructions © ARCA Regler GmbH. All rights reserved. Cover picture background: Freepik.com...

  • Page 3: Table Of Contents

    Installation of the swivel actuator .................. 28 9.3.1 Installation according to VDI/VDE 3845 ................ 28 9.3.2 ARCA mounting on swivel actuator series 840 (external piping) ..........  29 9.3.3 Integrated mounting on actuators series 840 ................  29 Series 824 09.2018 / 1.0...
  • Page 4 Table of contents ARCA Regler GmbH Pneumatic connection ...................... 31 Electrical connection ...................... 32 11.1 I/P transducer ........................ 32 11.2 Limit value transmitter ...................... 32 11.2.1 Normal version (2-wire, N) .................... 32 11.2.2 Safe design (2-wire, SN) .......................  32 11.2.3 Direct switching version (3-wire, E2) ..................

  • Page 5: General Data

    ARCA Regler GmbH 1 General data General data This operating manual contains instructions that enable the product to be safely and properly installed, put into operation and maintained. The target group for this operating manual is exclusively specially trained and authorised technical personnel.

  • Page 6: Safety

    2 Safety ARCA Regler GmbH Safety Introduction This manual contains all the information you need for the connection and commissioning of the device. It is addressed to people who mechanically mount, electrically connect and commission the device, as well as service and maintenance techni- cians.

  • Page 7: Warning Symbols On The Device

    Intended use Observe the following: WARNING ARCA positioners may be used only for the applications specified in the associated technical documentation. Proper transport, stor- age, erection, assembly, installation, commissioning, operation and maintenance are required for trouble-free and safe operation. The permissible environmental conditions must be maintained.

  • Page 8: Improper Modifications To The Device

    2 Safety ARCA Regler GmbH Improper modifications to the device WARNING Modification to the device Modifications and repairs to the device can result in danger to the per- sonnel, plant and environment! ► Modify or repair the device only as described in the instructions de- livered with the device.
  • Page 9 ARCA Regler GmbH 2 Safety 2006/42/EC Directive of the European Parliament and of the Council on Machinery (Machinery Directive for short) The applied standards can be found in the EC Declaration of Conformity for the device. Series 824 09.2018 / 1.0...

  • Page 10: Transport, Storage And Packaging

    3 Transport, storage and packaging ARCA Regler GmbH Transport, storage and packaging Transport Transport at a temperature lower than -40 °C or higher than +80 °C is not permissible. Storage NOTICE Improper storage! There is a danger of the product no longer functioning if it is stored im- properly.

  • Page 11: Nameplate

    ARCA Regler GmbH 4 Nameplate Nameplate 1 Manufacturer 2 Device name 3 Type 4 Observe the operating manual 5 Protection class 6 Nominal signal range 7 Auxiliary energy (supply air) 8 Auxiliary energy (voltage) 9 Fabrication number Illustration 1: Nameplate Series 824 09.2018 / 1.0...

  • Page 12: Type Key

    5 Type key ARCA Regler GmbH Type key 824. 1 Series 824. 2 Operating mode pneumatic electro-pneumatic, not explosion-proof 3 Output signal single-acting double-acting 4 Input signal 0.2 - 1.0 bar 4 - 20 mA 0 - 20 mA 0.2 - 0.6 bar 0.6 - 1.0 bar...
  • Page 13 ARCA Regler GmbH 5 Type key Example of type designation 824.E110-100 Positioner 824 – electro-pneumatic, not explosion-proof – single-action – input signal 4 - 20 mA – for stroke ≥ 20 mm – with manometer block – without limit value switch – without feedback Series 824 09.2018 / 1.0...

  • Page 14: Exploded View

    6 Exploded view ARCA Regler GmbH Exploded view Illustration 2: Detail drawing 14 / 46 09.2018 / 1.0 Series 824...

  • Page 15: Parts List

    ARCA Regler GmbH 7 Parts list Parts list Positioner Item Name Mounting block Control bushing O-ring Plug Bayonet clips Spring Control piston Piston lever Diaphragm chamber Spring suspension Washer Cylinder head bolt Stop screw Washer Hex nut Washer Hex nut...
  • Page 16 7 Parts list ARCA Regler GmbH Cylinder head bolt Screw plug Earthing block Spring lock washer Cylinder head bolt Earthing block Spring lock washer Cylinder head bolt Control wire Plain bearing Screw plug Screw plug Dirt strainer Limit value transmitter module...

  • Page 17: Description

    ARCA Regler GmbH 8 Description Description Function and structure ▪ The positioner operates in accordance with the force comparison principle and controls the position of actuators proportionally. The signal air pressure at the input is converted into force by a diaphragm in the diaphragm chamber (9) and compared with the return force of the spring (6).

  • Page 18: Cam Plate

    8 Description ARCA Regler GmbH Illustration 3: Functional description 8.1.1 Cam plate The cam plate (24) of the positioner has three characteristics, which are designed for a 60° angle of rotation equivalent to a 100% stroke or a 90° angle of rotation for a 90° opening angle with rotary valves. For the basic version, the linear curve (no.

  • Page 19: Installation

    ARCA Regler GmbH 9 Installation Installation Check whether the desired principle of operation - "normal" or "inverted" - is set correctly. To do this, look at the rear side of the positioner and check the setting. If it should be necessary to change the setting, refer to the chapter [12.1] Normal / Inversion "Configuration".

  • Page 20: Mounting A Linear Actuator

    9 Installation ARCA Regler GmbH Mounting a linear actuator 9.2.1 Installation according to DIN/IEC 534 T6 (NAMUR) Refer also to fig. 5 "Installation 824/Namur": ▪ Seal the actuation pressure output A (M8 thread) on the rear side of the positioner with the blanking plug (53).
  • Page 21 ARCA Regler GmbH 9 Installation Illustration 5: Installation 824/Namur Drive lever Spring wire Cylinder head bolts Pivot lever Stroke setting screw Washer Hex nut Hex screw Hex nut Washer Stirrup bolts Mounting plate Spring lock washer Hex screw Spring lock washer Series 824 09.2018 / 1.0...

  • Page 22: Integrated Mounting On Actuators Series 812

    9 Installation ARCA Regler GmbH Hex screw Spring lock washer Hex nut 9.2.2 Integrated mounting on actuators series 812 Mounting procedure (see illustrations below) ▪ Mount the stroke driving pin (225) on the actuator stem and secure with Loctite 601.
  • Page 23 ARCA Regler GmbH 9 Installation Illustration 6: Pivot lever Series 824 09.2018 / 1.0 23 / 46...

  • Page 24: Integrated Mounting On Actuators Series 813

    9 Installation ARCA Regler GmbH Illustration 7: Assembly 824/812 side view Pivot lever Spring lock washer Hex screw Hex nut Hex nut Washer Sliding washer Spring Conical roller Circlip Stroke setting screw Cylinder head bolt O-ring Stroke driving pin Spring lock washer Illustration 8: Assembly 824/812 standard top view...
  • Page 25 ARCA Regler GmbH 9 Installation ▪ Seal the actuation pressure output A on the positioner with the blanking plug (65). – Remove the blanking plug (53) from the rear side of the device (if fitted). – Also refer to the chapter [10] Pneumatic connection.
  • Page 26 9 Installation ARCA Regler GmbH Illustration 9: Adapter plate / pivot lever 26 / 46 09.2018 / 1.0 Series 824...
  • Page 27 ARCA Regler GmbH 9 Installation Illustration 10: Assembly 824/813 side view Pivot lever Spring lock washer Hex screw Hex nut Hex nut Washer Sliding washer Spring Conical roller Circlip Stroke setting screw Adapter plate Cylinder head bolt Adapter Grub screw O-ring...

  • Page 28: Installation Of The Swivel Actuator

    9 Installation ARCA Regler GmbH Illustration 12: Photo - assembly 824/813 Installation of the swivel actuator 9.3.1 Installation according to VDI/VDE 3845 ▪ Insert the coupling (265) into the actuator adapter (264) (not included in the scope of delivery) and secure with the screw (266).

  • Page 29: Arca Mounting On Swivel Actuator Series 840 (External Piping)

    Actuator adapter Items 260 and 264 are part of the scope of delivery only when mounting on an ARCA actuator from the series 840. In the case of third-party actu- ators the yoke (260) can be supplied on request! 9.3.2 ARCA mounting on swivel actuator series 840 (external piping) ▪...
  • Page 30 9 Installation ARCA Regler GmbH ▪ Seal the actuation pressure output A on the positioner with the blanking plug (63). – Remove the blanking plug (53) from the rear side of the device (if fitted). – Also refer to the chapter [10] Pneumatic connection.

  • Page 31: Pneumatic Connection

    ARCA Regler GmbH 10 Pneumatic connection Pneumatic connection The assignment of the pneumatic connections is done in accordance with the designation of the connection sign affixed to the side or affixed inside the cover (51). Commercially available screw connections for cop- per and stainless steel pipe or plastic hoses can be used.

  • Page 32: Electrical Connection

    11 Electrical connection ARCA Regler GmbH Electrical connection The electrical work is to be carried out under careful observation of the safety instructions in the chapter [2] Safety. Refer to the chapter [16] Technical Data for the individual electrical op- tions! ▪...

  • Page 33: Direct Switching Version (3-Wire, E2)

    ARCA Regler GmbH 11 Electrical connection In the event of an error message for the proximity switch, the switching amplifier or the connecting cable, the output automatically enters the safe "off" state (= logic 0). Normally closed (SN) types are generally used.

  • Page 34: Configuration

    12 Configuration ARCA Regler GmbH Configuration 12.1 Normal / Inversion ▪ Determine the required switch position and cam plate characteristic from fig. 20. – Refer also to the chapter [8.1.1] Cam plate. Illustration 21: Table: Mode of operation Check the configuration of the positioner and if necessary perform the steps listed in the chapters [12.1.1] Changeover switch and [12.1.2] Select...

  • Page 35: Select Cam Plate

    ARCA Regler GmbH 12 Configuration 12.1.2 Select cam plate ▪ Unhook the spring (6) from the return lever (29). ▪ Loosen the screw (27). ▪ Remove the position indicator (25) (versions for swivel actuators only) and the cam plate (24) and mount in the desired position.

  • Page 36: Commissioning

    13 Commissioning ARCA Regler GmbH Commissioning 13.1 Adjustment of zero point and stroke/angle of rotation ▪ The adjustment is done in accordance with the flow chart below. ▪ Measure the stroke or angle of rotation with a dial gauge or angle of rotation measuring instrument respectively! ▪...

  • Page 37: Limit Value Transmitter

    ARCA Regler GmbH 13 Commissioning 13.2 Limit value transmitter The limit contacts are normally adjusted so that a signal is present in each of the end positions (open/closed). Both vanes can be infinitely ro- tated so that intermediate positions can also be signalled. To ensure reli- able switching, the switching point should be set approx.

  • Page 38: Service And Maintenance

    14 Service and maintenance ARCA Regler GmbH Service and maintenance Basic safety instructions WARNING Impermissible repair of the device Repairs may be carried out only by authorised personnel. WARNING Impermissible accessories and impermissible spare parts Damage to the device ► Use exclusively original accessories and original spare parts.

  • Page 39: Retrofit / Exchange / Repair

    ARCA Regler GmbH 15 Retrofit / exchange / repair Retrofit / exchange / repair A new nameplate must be requested following any modifications. Some modules cannot be installed together in the positioner. Therefore it is es- sential that you read the chapter [16] Technical Data for the individual modules.

  • Page 40: Feedback Potentiometer And Measuring Transducer

    15 Retrofit / exchange / repair ARCA Regler GmbH ▪ For commissioning see [13] Commissioning. 15.3 Feedback potentiometer and measuring transducer ▪ Release the cables of the feedback potentiometer (91) and the measuring transducer (92) from the terminals (45). – if existent.

  • Page 41: Complete Diaphragm Chamber

    ARCA Regler GmbH 15 Retrofit / exchange / repair ▪ Remove the circlip (18). ▪ Loosen the screws (19). ▪ Remove the piston lever (8). ▪ Mount the new piston lever (8). ▪ Further installation in the reverse order. ▪ For commissioning see [13] Commissioning.

  • Page 42: Technical Data

    ARCA Regler GmbH Technical Data 16.1 General data Installation on thrust actuators ARCA-integrated or according to IEC 534-6 (NAMUR) Stroke range 10 to 120 mm on swivel actuators ARCA-integrated or according to VDI/VDE 3845 Angle of rotation 90° Housing material...

  • Page 43: Electrical Data For Options - Inductive Limit Value Transmitter

    ARCA Regler GmbH 16 Technical Data Air consumption < 0.6 m3/h in the normal state, type 824.P < 0.5 m3/h in the normal state in stationary operation Flow rate 6 m3/h in the normal state at 1.4 barg Electrical / pneumatic data for the base device...

  • Page 44: Electrical Data For Options - Potentiometer And Position Feedback

    16 Technical Data ARCA Regler GmbH 16.4 Electrical data for options – potentiometer and position feedback Potentiometer 824.P/Exxx-xx2 Resistance 200, 500 or 1000 Ohm Characteristic deviation < 2 % Internal capacitance Ci 3.5 pF Internal inductance Li 10 mH Electrical connection [11.3.1] Feedback potentiometer...

  • Page 45: Disposal And Recycling

    Particular attention is to be paid to dead spaces (pressure compensation, bellows, etc.) ► Observe the legal regulations for the disposal of media that are haz- ardous to health ARCA products are modularly constructed and can be sorted by material into the following components. ▪ Electronic components ▪ Metals ▪...
  • Page 46 www.arca-valve.com...

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