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APV CU4 Operating Manual

As-interface control unit
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Operating Manual
CU4 AS-interface
Control Unit
NTERFACE
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operating or servicing this product.

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  • Page 1 Operating Manual CU4 AS-interface Control Unit NTERFACE Read and understand this manual prior to operating or servicing this product.
  • Page 3 Control Unit CU4 AS-interface UK-0 / 31.05.2010 C on t en t Page Abbreviations and Definitions Safety Instructions 2 - 4 2.1. Sentinels 2.2. Conventional Use 2.3. General Regulations for Careful Handling 2.4. Welding Instructions 2.5. Persons 2.6. Warranty 2.7.

  • Page 5: Abbreviations And Definitions

    Control Unit CU4 AS-interface UK-0 / 31.05.2010 Abbreviations and Definitions Exhaust Air American Wire Gauge Communauté Européenne Control Unit Digital Input Digital Output Electromagnetic Compatibility Ground International Protection Luminous Diode Pneumatic Air Connection NOT element NEMA National Electrical Manufacturers Association...
  • Page 6 Safety Instructions 2.2. Conventional Use The DELTA CU4 control unit is only intended for use as described in chapter 3.1. Use beyond that described in chapter 3.1. is not according to regulations and APV shall not be responsible for any damage resulting from this non-observance.

  • Page 7: Welding Instructions

    Control Unit CU4 AS-interface UK-0 / 31.05.2010 Safety Instructions 2.4. Welding instructions It is generally recommended to avoid welding work in process installation in which control units are installed and connected. If welding is nonetheless required, earthing of the electrical devices in the welding area is a necessity.

  • Page 8: General Terms

    The CU4 control unit operates as interface between process control and process valve and controls the electric and pneumatic signals. The pneumatic control of APV valves is undertaken via the fig. 3.2. solenoid valves. The control unit controls the valve positions, open and closed, via integrated and external sensors.
  • Page 9 Observance of the required compressed air quality is imperative. Please also see chapter 4.5. The number of the solenoid valves installed in the CU4 depends on the valve actuators to be controlled. Single seat and butterfly valves and double seat valves without seat lift function require 1 solenoid valve.
  • Page 10 Control Unit CU4 AS-interface UK-0 / 31.05.2010 General Terms 3.3. Function of the individual components The luminous diodes are located on the front side of the electronic module. Their signals are visibly indicated to the outside by an optical window in the cover the control unit. Beside the open and closed valve position, the existence of the operating voltage as well as different diagnostic information are indicated.
  • Page 11 Control Unit CU4 AS-interface UK-0 / 31.05.2010 Mechanics and Pneumatics 4.1. Air connections for turning actuator 4.1.1. Function CU41-T-AS-i design for valve with turning actuator, e.g. butterfly valves. AIR IN air supply with integrated particle filter. bore to transfer control air to turning actuator exhaust air, with exhaust silencer.
  • Page 12 Control Unit CU4 AS-interface UK-0 / 31.05.2010 Mechanics and Pneumatics 4.3. Pressure relief valve The base of the control unit is equipped with a pressure relief valve. Which prevents an inadmissible pressure build-up in the inner control unit. If required, the pressure relief vents into the clearance between the base and the adapter of the control unit.
  • Page 13 Control Unit CU4 AS-interface UK-0 / 31.05.2010 Mechanics and Pneumatics 4.4. CU41 AS-interface Functional description - block diagram NTERFACE AS-i-Bus + Picture shows a standard NC (spring to closed) valve. AS-i-Bus - If NO (spring to open) valve is used, the sensor wiring can be different.
  • Page 14 Control Unit CU4 AS-interface UK-0 / 31.05.2010 Mechanics and Pneumatics 4.4.1. CU41N - AS-interface Functional description - block diagram NTERFACE Picture shows a standard NC AS-i-Bus + (spring to closed) valve. AS-i-Bus - If NO (spring to open) valve is used, the sensor wiring can be different.
  • Page 15 Control Unit CU4 AS-interface UK-0 / 31.05.2010 Mechanics and Pneumatics 4.4.2. CU43 AS-interface for double seat valve DA3 Functional description - block diagram NTERFACE AS-i-Bus + Picture shows a standard NC AS-i-Bus - (spring to closed) valve. 5 VDC If NO (spring to open) valve is used, Sensor 1 the sensor wiring can be different.
  • Page 16 Control Unit CU4 AS-interface UK-0 / 31.05.2010 Mechanics and Pneumatics 4.5. Technical Data / Standards Material: PA6.6 Ambient temperature: -20°C bis +70°C EMC 89/336/EEC Standards and environmental audits: protection class IP 67 EN60529 / complies with NEMA 6 EMV interference resistance...
  • Page 17 Control Unit CU4 AS-interface UK-0 / 31.05.2010 Mechanics and Pneumatics 4.6. Solenoid valves In the base of the control unit max. 3 solenoid valves are installed. The 3/2-way solenoid valves are connected with the electronic module by moulded cables and plug connectors.
  • Page 18 Control Unit CU4 AS-interface UK-0 / 31.05.2010 Adapter Adapter for different process valves 5.1. Valves with turning actuator, e.g. butterfly valves 5.2. Single seat valves 5.3. Double seat valves Control Unit CU4 AS-interface Operating Manual: UK-0...

  • Page 19: Electronic Module

    It complies with the specification V3.0. The profile is S-7.A.*.E (3 outputs and 2 inputs). By means of a connecting terminal, the inputs can either be connected with internal APV Hall effect sensors or with external inductive proximity switches (compare 6.5.). The AS-Interface DELTA CU4 is designed for the extended address range.
  • Page 20 Control Unit CU4 AS-interface UK-0 / 31.05.2010 Electronic module 6.1.1. Switchover of feedback signals The signals to the control can be switched over via the bridge between the terminals 10, 11 and 12. If a bridge is located between the terminals 10 and 11 (normal), the signal is transferred from sensor 1 (closed valve position) to input DI0 of the control.
  • Page 21 Control Unit CU4 AS-interface UK-0 / 31.05.2010 Electronic module 6.3. Use of data bits Communication data The use of the data bits shall be drawn from the following table: Data bit Info Connection Level main valve Low (no electr. current)
  • Page 22 Control Unit CU4 AS-interface UK-0 / 31.05.2010 Electronic module 6.4. Technical Data AS-Interface profile: S-7.A.*.E (S-7.F.F.F as option) Extended address range: is supported Serial communication mode: Inverse-polarity protection: exists Indication "Power": LED3 (green) Indication "Fault": LED3 (red) AS-Interface Voltage range: 26,5...31,6 V...
  • Page 23 Control Unit CU4 AS-interface UK-0 / 31.05.2010 Electronic module 6.5. Connections Sensors to detect the valve positions: Internal sensors: Hall effect sensors, APV type H 320385 UB 4,75-5,25 VDC operating distance according to APV specification External sensors: Inductive proximity switches,...
  • Page 24 Control Unit CU4 AS-interface UK-0 / 31.05.2010 Electronic module 6.6. LED indicators External luminous displays colour: green, Valve Open valve in open position permanent light colour: orange, Valve Closed valve in closed position permanent light Valve Open colour: green, flashing...

  • Page 25: Feedback Unit

    Use of external sensors Hall effect sensor Instead of the internal Hall effect sensors, also 2 external proximity switches can be connected to the CU4 DC, e.g. for the valve position indication at double seat valves. Proximity switch APV Type H208844...
  • Page 26 Control Unit CU4 AS-interface UK-0 / 31.05.2010 CU Assembly and Start-up 8.1. Turning actuator, e.g. for butterfly valves CU cover CU base with electronic module, sensor tower and solenoid valves clamp ring fastening screws adapter operating cam with permanent magnet...

  • Page 27: Electric Connection

    Control Unit CU4 AS-interface UK-0 / 31.05.2010 CU Assembly and Start-up 8.1.1. Pneumatic connection Supply air: CAUTION Shut off the compressed air supply before connecting the air hose! See that the air hose is professionally cut to length. Use a hose cutter for this purpose.
  • Page 28 Control Unit CU4 AS-interface UK-0 / 31.05.2010 CU Assembly and Start-up 8.1.3. Start-up After proper assembly and installation of the control unit, start-up can be undertaken as described below: lever Switch on the air supply. Switch on the voltage supply.
  • Page 29 Control Unit CU4 AS-interface UK-0 / 31.05.2010 CU Assembly and Start-up 8.2. Single seat valves CU cover CU base with electronic module, sensor tower and solenoid valves clamp ring fastening screws adapter operating cam with actuator permanent magnet CAUTION The permanent magnet is made of fragile material and must be protected against mechanical load .
  • Page 30 Control Unit CU4 AS-interface UK-0 / 31.05.2010 CU Assembly and Start-up 8.2.1. Pneumatic connection Supply air: CAUTION Shut off the compressed air supply before connecting the air hose! See that the air hose is professionally cut to length. Use a hose cutter for this purpose.
  • Page 31 Control Unit CU4 AS-interface UK-0 / 31.05.2010 CU Assembly and Start-up 8.2.3. Start-up After proper assembly and installation of the control unit, start-up can be undertaken as described below: lever Switch on the air supply. Switch on the voltage supply.
  • Page 32 Control Unit CU4 AS-interface UK-0 / 31.05.2010 CU Assembly and Start-up Double seat valves 8.3. CU cover CU41/CU43 clamp ring fastening screws adapter feedback 1 for closed valve position seat lift cylinder air actuator external proximity switches spring cylinder feedback 2 for...
  • Page 33 Control Unit CU4 AS-interface UK-0 / 31.05.2010 CU Assembly and Start-up 8.3.1. Pneumatic connection Supply air: CAUTION Shut off the compressed air supply before connecting the air hose! See that the air hose is professionally cut to length. Use a hose cutter for this purpose.
  • Page 34 CU Assembly and Start-up 8.3.3. Connection of external proximity switches The electric connection of the proximity switches specified by APV is undertaken according to the terminal layout described in chapter 6.1. lever The mechanic assembly of the proximity switches is carried out at the actuator of the corresponding double seat valves.

  • Page 35: Accessories And Tools

    Control Unit CU4 AS-interface UK-0 / 31.05.2010 Accessories and Tools Assembly/disassembly - adapter on valve actuator: • hexagon socket wrench 6 mm • screwdriver 4mm Assembly/disassembly – CU on adapter: • hexagon socket wrench 3 mm Assembly/disassembly – electronic module: •...
  • Page 36 Release the cable for the Hall effect sensors from the terminal strip, terminals 3-8. Release the clamp ring and lift the CU4 from the adapter. Remove the 4 screws (9) TX15 at the lower side of the CU base (1).

  • Page 37: Troubleshooting

    Control Unit CU4 AS-interface UK-0 / 31.05.2010 Trouble Shooting F a i l u r e R e m e d y Valve position is not indicated. Re-adjust Hall sensors. Check fastening of magnetic operating cam. Check cabeling of the Hall sensors to the electronic module.

  • Page 38: Spare Parts Lists

    Control Unit CU4 AS-interface UK-0 / 31.05.2010 Trouble Shooting F a i l u r e R e m e d y Control Unit CU41 installed on Single seat and Double seat valves Check if right control unit is installed.
  • Page 40 While we have taken care to ensure the information is accurate at the time of going to press, we assume no responsibility for errors or omissions nor for any damages resulting from the use of the information contained herein. Issued: 05/2010 ID-No.: H326406 Rev.: 0-UK BA CU4 ASI 0002 Copyright © 2008 SPX Corporation...
  • Page 41 Datum: 05/10 Name: D.Schulz Geprüft: Ersatzteilliste: spare parts list APV Rosista GmbH, D-59425 Unna Germany Blatt CU4 AS - Interface RN 01.044.5...

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