Carel EVD evolution User Manual
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Carel EVD evolution User Manual

Electronic expansion valve driver
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  • Page 2 EVD evolution electronic expansion valve driver User manual I n t e g r a t e d C o n t r o l S o l u t i o n s & E n e r g y S a v i n g s...
  • Page 4 The technical specifications shown in the manual may be changed without prior warning. The liability of CAREL in relation to its products is specified in the CAREL general contract conditions, available on the website www.carel.com and/or by specific agreements with customers; specifically, to the extent where allowed...

  • Page 6: Table Of Contents

    9.6 pLAN error alarm ..................40 9.7 LAN error alarm (for tLAN and RS485/Modbus® driver) ....40 10. TROUBLESHOOTING 11. TECHNICAL SPECIFICATIONS 12. APPENDIX: VPM (VISUAL PARAMETER MANAGER) 12.1 Installation ....................44 12.2 Programming (VPM) ..................44 “EVD evolution” +030222041 - rel. 1.0 - 01.06.2008...

  • Page 8: Introduction

    Another possibility involves operation as a simple positioner with 4 to 20 mA or 0 to 10 Vdc analogue input signal. EVD evolution comes with a LED board to indicate the operating status, or a graphic display (accessory) that...
  • Page 9 Valve cable E2VCABS*00 (IP67) Shielded cable with built-in connector for connection to the valve motor. The connector code E2VCON0000 (IP65) can also be purchased on its own, to be wired. Fig. 1.d “EVD evolution” +030222041 - rel. 1.0 - 01.06.2008...

  • Page 10: Installation

    INSTALLATION DIN rail assembly and dimensions Connection diagram - superheat control EVD evolution is supplied with screen-printed connectors to simplify wiring. The shield is connected with a spade terminal. CAREL E Power Supply V connection Relay evolution shield 230 Vac...

  • Page 11: Installation

    • strong vibrations or knocks; and display fi rmware, downloadable from http://ksa.carel.com. • exposure to continuous water sprays; See appendix 1. • exposure to aggressive and polluting atmospheres (e.g.: sulphur “EVD evolution” +030222041 - rel. 1.0 - 01.06.2008...

  • Page 12: Upload, Download And Reset Parameters (Display)

    DO NOT remove the display from the driver during the UPLOAD, DOWNLOAD, RESET procedure; • the parameters cannot be downloaded if the source driver and the target driver have incompatible fi rmware. “EVD evolution” +030222041 - rel. 1.0 - 01.06.2008...

  • Page 13: General Connection Diagram

    The maximum length of the connection cable to the EVBAT200/300 module is 5 m. solenoid valve alarm signal The connection cable to the valve motor must be 4-wire shielded, AWG 18/22 Lmax= 10 m black blue supervision computer “EVD evolution” +030222041 - rel. 1.0 - 01.06.2008...

  • Page 14: User Interface

    UP/DOWN: the variables are shown on the display; press Esc to exit display mode. “EVD evolution” +030222041 - rel. 1.0 - 01.06.2008...

  • Page 15: Programming Mode (Display)

    Confi guration Sensors Control Special Alarm confi guration Valve press the UP/DOWN buttons to select the category and ENTER to access the fi rst parameter in the category; “EVD evolution” +030222041 - rel. 1.0 - 01.06.2008...

  • Page 16: Commissioning

    Then the driver will be enabled for control, and it will be possible to enter Manufacturer programming mode and set the corresponding parameters manually. “EVD evolution” +030222041 - rel. 1.0 - 01.06.2008...
  • Page 17 S2 is set as “CAREL NTC”. Other types of sensors can be Parameter/description Def.

  • Page 18: Checks After Commissioning

    • set, if necessary, in Service or Manufacturer programming mode, the superheat set point (otherwise keep the value recommended by CAREL based on the application) and the protection thresholds (LOP, MOP, etc.). See the chapter on Protectors. Other functions By entering Service programming mode, other types of main control can be selected (transcritical CO , hot gas bypass, etc.), as well as so-called...

  • Page 19: Control

    “Backup sensors on S3 & S4” can always be activated, once the related sensors have been connected. The following paragraphs explain all the types of control that can be set on EVD evolution. evolution Fig. 5.a “EVD evolution” +030222041 - rel. 1.0 - 01.06.2008...

  • Page 20: Special Control

    Note: when selecting the type of main control (both superheat pressure set point”. Control is direct, as the pressure increases, the valve control and special modes), the PID control values suggested by CAREL opens and vice-versa. will be automatically set for each application.
  • Page 21 PID: integration time Parameter/description Def. Min. Max. CONTROL Tab. 5.g Hot gas bypass pressure set point barg (290) (2900) (psig) PID: proportional gain PID: integration time 1000 PID: derivative time Tab. 5.f “EVD evolution” +030222041 - rel. 1.0 - 01.06.2008...
  • Page 22 CONTROL PID: proportional gain Important: the pre-positioning and repositioning procedures PID: derivative time 1000 are not performed. Manual positioning can be enabled when control is PID: integration time active or in standby. “EVD evolution” +030222041 - rel. 1.0 - 01.06.2008...

  • Page 23: Auxiliary Control

    S4, located in a similar position to the one used for the traditional temperature control of the cabinet. In practice, the close the controlled temperature gets to the set point, the more the control “EVD evolution” +030222041 - rel. 1.0 - 01.06.2008...
  • Page 24 Fig. 5.j Key: Compressor EEV Electronic expansion valve Condenser Solenoid valve Liquid receiver Evaporator Dewatering filter Pressure sensor (transducer) Liquid indicator Temperature sensor For the wiring, see paragraph 2.7 “General connection diagram”. “EVD evolution” +030222041 - rel. 1.0 - 01.06.2008...

  • Page 25: Functions

    Fig. 6.a Parameter/description Def. CONFIGURATION Sensor S2: CAREL NTC Key: CAREL NTC; CAREL NTC-HT high T; Combined NTC SPKP**T0; A= offset, 0-10 V external signal B= gain Sensor S4: CAREL NTC CAREL NTC; CAREL NTC-HT high T; Combined NTC SPKP**T0 Tab.

  • Page 26: Control Status

    If during standby a control request is received, before starting control the valve is moved to a precise initial position. Parameter/description Def. Min. Max. Control Valve opening at start (evaporator/valve capacity ratio) Tab. 6.i “EVD evolution” +030222041 - rel. 1.0 - 01.06.2008...

  • Page 27: Special Control Status

    Manufacturer programming mode, under the configuration Change capacity Wait parameters, set the PID proportional gain= 0. The valve will remain NP Repositioning Time stopped at the initial opening position, set by corresponding Control parameter. “EVD evolution” +030222041 - rel. 1.0 - 01.06.2008...
  • Page 28 Note: the valve unblock procedure is nonetheless performed in each of these cases, given that it does not cause mechanical or control problems. Therefore, also check these possible causes before replacing the valve. “EVD evolution” +030222041 - rel. 1.0 - 01.06.2008...

  • Page 29: Protectors

    (LowSH) (0= alarm disabled) exactly half-way between the two limits indicated; Tab. 7.b • the protector has no purpose in multiplexed systems (showcases) where the evaporation is kept constant and the status of the individual “EVD evolution” +030222041 - rel. 1.0 - 01.06.2008...
  • Page 30 As the action is integral, it depends directly on where the condensing pressure is maintained constant and the status the difference between the evaporation temperature and the activation of the individual electronic valves does not affect the pressure value. “EVD evolution” +030222041 - rel. 1.0 - 01.06.2008...
  • Page 31 • the closing of the valve will be limited if this causes an excessive decrease in the evaporation temperature. “EVD evolution” +030222041 - rel. 1.0 - 01.06.2008...

  • Page 32: Parameters Table

    CAREL NTC-HT high temp. Combined NTC SPKP**T0 0 to 10 V external signal Auxiliary control: Disabled Disabled High condensing temperature protection on S3 Modulating thermostat on S4 Backup sensors on S3 & S4 “EVD evolution” +030222041 - rel. 1.0 - 01.06.2008...
  • Page 33 Valve in fixed position Sensor S4 alarm management: No action No action Forced valve closing Valve in fixed position Language: Italiano; English Italiano Unit of measure: °C(K), barg; °F(°R), psig °C(K), barg “EVD evolution” +030222041 - rel. 1.0 - 01.06.2008...
  • Page 34 °C (°F) Modulating thermostat: differential 0, 1 0, 1 (0,2) 100 (180) °C (°F) Modulating thermostat: superheat set point offset 0 (0) 100 (180) K (°R) Coefficient ‘A’ for CO control -100 “EVD evolution” +030222041 - rel. 1.0 - 01.06.2008...

  • Page 35: Unit Of Measure

    Note: because of some internal arithmetics limitations of the driver, it will not be possible to convert the pressure values higher than 200 barg (2900 psig) and the temperature values higher than 200 °C (392 °F). “EVD evolution” +030222041 - rel. 1.0 - 01.06.2008...

  • Page 36: Variables Shown On The Display

    -20 (-290) 200 (2900) 4 to 20 mA input value 0 to 10 V input value Control set point -60 (-76) 200 (392) Driver firmware version Valve position 9999 Current unit cooling capacity “EVD evolution” +030222041 - rel. 1.0 - 01.06.2008...
  • Page 37 Enable EVD control Tab. 8.c Type of variable: A= analogue, D= digital, I= integer SVP= variable address with CAREL protocol on 485 serial card. Modbus®: variable address with Modbus® protocol on 485 serial card. “EVD evolution” +030222041 - rel. 1.0 - 01.06.2008...

  • Page 38: Alarms

    ) parameter Low suction Threshold and de- ALARM fl ashing Depends on automatic No eff ect Check the threshold and delay temperature lay time exceeded confi guration parameters. parameter “EVD evolution” +030222041 - rel. 1.0 - 01.06.2008...

  • Page 39: Alarm Relay Configuration

    • by default, after having selected the type of sensor used, the alarm limits will be automatically set to the limits corresponding to the range of measurement of the sensor. “EVD evolution” +030222041 - rel. 1.0 - 01.06.2008...

  • Page 40: Control Alarms

    If the delay relating to the control alarms is set to 0 s, the alarm is disabled. The protectors are still active, however. The alarms are reset automatically. “EVD evolution” +030222041 - rel. 1.0 - 01.06.2008...

  • Page 41: Plan Error Alarm

    The green NET LED will however indicate any problems in the line. The NET LED flashing or off indicates the problem has lasted more than 150 s. “EVD evolution” +030222041 - rel. 1.0 - 01.06.2008...

  • Page 42: Troubleshooting

    Apply a “soft start” technique, activating the utilities one at a time or in small groups. If or extreme transitory conditions at start-up this is not possible, decrease the values of the MOP thresholds on all the utilities. (for cabinets only). “EVD evolution” +030222041 - rel. 1.0 - 01.06.2008...
  • Page 43 Check the connection of the digital input. Check that when the control signal is sent cabinets only) does not start control and the valve that the input is closed correctly. Check that the driver is in stand-alone mode. remains closed Tab. 10.a “EVD evolution” +030222041 - rel. 1.0 - 01.06.2008...

  • Page 44: Technical Specifications

    Class of insulation Software class and structure Conformity : EN 60730-1, EN 61010-1 Electrical safety y: EN 61000-6-1, EN 61000-6-2, EN 61000-6-3, EN 61000-6-4; EN61000-3-2, EN55014-1, Electromagnetic compatibilit EN55014-2, EN61000-3-3. Tab. 11.a “EVD evolution” +030222041 - rel. 1.0 - 01.06.2008...

  • Page 45: Appendix: Vpm (Visual Parameter Manager)

    When opening the program, the user needs to choose the device being Fig. 12.c confi gured: EVD evolution. The Home page then opens, with the choice to create a new project or open an existing project. Choose new project select the model from the range and create a new project or and enter the password, which when accessed the fi...

  • Page 46: Copying The Setup

    USB/tLAN converter, which is connected to the device being programmed (see paragraph 2.5 for the connection diagram). The fi rmware can be downloaded from http://ksa.carel.com. See the VPM On-line help. “EVD evolution” +030222041 - rel. 1.0 - 01.06.2008...
  • Page 47 “EVD evolution” +030222041 - rel. 1.0 - 01.06.2008...
  • Page 49 Agenzia / Agency: CAREL S.p.A. Via dell’Industria, 11 - 35020 Brugine - Padova (Italy) Tel. (+39) 049.9716611 - Fax (+39) 049.9716600 e-mail: carel@carel.com - www.carel.com...

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