Emerson Dixell IEV12D Installing And Operating Instructions
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Emerson Dixell IEV12D Installing And Operating Instructions

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IEV12D - IEV14D
Release FW 1.8

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Summary of Contents for Emerson Dixell IEV12D

  • Page 1 IEV12D - IEV14D Release FW 1.8...

  • Page 2: Table Of Contents

    INDEX GENERAL WARNING ..................5 LEASE READ BEFORE USING THIS MANUAL ................5 AFETY RECAUTIONS ....................... 5 PRODUCT DISPOSAL (WEEE) ....................6 MAIN CHARACTERISTIC ................7 USER INTERFACE ..................7 CONS OF THE DISPLAY ......................8 ........................... 9 CREEN DISPLAY ........................
  • Page 3 PARAMETER PROGRAMMING KEY - HOTKEY 4K......... 47 11.1 ........................48 11.2 ........................... 48 SERIAL OUTPUT ..................49 MAXIMUM POWER ALLOWED ..............49 INSTALLATION ..................49 14.1 ENERAL RULES ........................50 14.2 NALOGUE INPUT CONNECTION ....................50 14.3 UPERCAP CONNECTION DIAGRAM .....................

  • Page 4: General Warning

    1. GENERAL WARNING Please read before using this manual • This manual is part of the product and should be kept near the instrument for easy and quick reference. • The instrument shall not be used for purposes different from those described hereunder. It cannot be used as a safety device.

  • Page 5: Product Disposal (Weee)

    1.3 PRODUCT DISPOSAL (WEEE) With reference to Directive 2002/96/EC of the European Parliament and of the Council of 27 January 2003 and to the relative national legislation, please note that: • There lies the obligation not to dispose of electrical and electronic waste as municipal waste but to separate the waste.

  • Page 6: Main Characteristic

    2. Main characteristic IEV is an electronic controller designed for the management of one or two unipolar stepper motors of electronic expansion valves. IEV is available with a single driver for use with single gas circuit (IEV12D) or double drivers for applications in two gas circuits (IEV14D).

  • Page 7: Icons Of The Display

    3.1 Icons of the display ON when the displays show a temperature or pressure. °C -°F BAR-PSI ON in parameter programming if the displays show temperature or pressure set points/differentials. ON when the displays show the opening percentage of one of the two valves. ON when the valve is activated for adjustment.

  • Page 8: Keys

    3.2 Keys Press the key to toggle between the information of valve 1 and valve 2. Press the key to view the superheating set point. The superheating set point can be modified by pressing the key for 4 seconds. Press the keys to: •...

  • Page 9: Viewing The Measured Or Calculated Variables

    If the variables of valve 1 are shown on the display, only the icons belonging to valve 1 are viewed (V1, , open, close), except for the status icon ( If the variables of valve 2 are shown on the display, only the icons belonging to valve 2 are viewed (V2, , open, close), except for the status icon ( The alarms are shown in the lower display, regardless whether they belong to valve 1 or 2.
  • Page 10 1592026270 IEV12-14D GB r.1.0 21.02.2019 11/56...

  • Page 11: Viewing Active Alarms, Alarm Log And The Upload Function

    3.5 Viewing active alarms, alarm log and the upload function The following can be viewed by pressing the “menu” key: • ALrM: active alarms (if present); press to view all the other alarms • ALoG: alarm log (last 50 alarms with fifo logic) •...

  • Page 12: Viewing The Superheating Set Point

    3.6 Viewing the superheating set point Pushing SET key it will be visualized superheating cooling set point (SHC) or heating set point (SHH), depending on operation mode at the time. If the device is configured for both operation mode, in STD-BY the display shows both set point. 3.7 Modifying the superheating set point Proceed as follows to modify the superheating set point: •...

  • Page 13: Viewing Parameters Of Level Pr1

    3.8 Viewing Parameters of level Pr1 Proceed as follows to view the parameters: • press SET and simultaneously for 5 seconds • press to view the desired parameter • press SET and simultaneously to exit from viewing the parameters 3.9 Viewing Parameters of level Pr2 Proceed as follows to view the parameters: •...
  • Page 14 How to modify visibility level To modify the visibility lev of a parameter from Pr1 to Pr2 or from Pr2 to Pr1 is necessary: • enter programming parameters level Pr2 • select the parameter • push SET key and hold it down then press •...

  • Page 15: How To Modify The Parameters

    Parameter displayed also in Pr2 3.10 How to modify the parameters Proceed as follows to access the programming area of the parameters displayed in Pr1: • press SET and simultaneously for 5 seconds • press to view the parameter that is to be modified •...

  • Page 16: Modifying The Value Of Password Pr2

    Modifying the parameters displayed in Pr1: 3.11 Modifying the value of Password Pr2 Proceed as follows to edit the value of the password: • press SET and simultaneously for 5 seconds • press to view the password Pr2 parameter (last parameter on the list) •...
  • Page 17 1592026270 IEV12-14D GB r.1.0 21.02.2019 18/56...

  • Page 18: Temperature And Pressure Parameter Values

    3.12 Temperature and Pressure Parameter Values All parameters that indicate a temperature or pressure can be expressed in degrees Celsius/bar or Fahrenheit/PSI, according to parameter Ec41 that sets the unit of measurement. Modifying the Ec41 parameter from Celsius/bar to Fahrenheit/PSI and vice versa does not involve an automatic update of the parameters from one unit of measurement to the other.
  • Page 19 Multipolar connector Terminal Type Description AC supply: 24Vac Supply DC supply: Reference “+“ 24 Vdc Analogue input 1 (NTC, PTC, PT1000) Analogue input 2 (NTC, PTC, PT1000) Analogue input 3 (NTC, PTC, PT1000, 0 - 5V, 4 - 20 mA) Analogue input 4 (NTC, PTC, PT1000, 0 - 5V, 4 - 20 mA) LAN + LAN Connection (+ terminal) to connect to IC200 EVO series...

  • Page 20: Digital Inputs

    Supercap connector Input from XEC Supercap Ground XEC Supercap HotKey 4K connector This connector is used to connect the HotKey to upload or download the configuration parameters. Valve connector Set the programming of the configuration parameters before connecting the valve; the connection of a valve with features not compatible with the model set in the device can result in a failure of the device or to the valve Do not connect or disconnect the valve while the device is connected to the power;...

  • Page 21: Relay

    o3 : circuit 1 defrosting - active by an open contact c3 : circuit 1 defrosting - active by a closed contact o4 : call to adjust circuit 2 - active by an open contact c4 : call to adjust circuit 2 - active by a closed contact o5 : circuit 2 cooling/heating function - active by an open contact c5 : circuit 2 cooling/heating function - active by a closed contact o6 : circuit 2 defrosting - active by an open contact...

  • Page 22: Kind Of Operation

    A high superheating value means that the gas flow passing in the evaporator is insufficient and the evaporation process ends before reaching the end of the evaporator. The valve must be opened to increase the gas flow. A low superheating value means that the gas flow passing in the evaporator is excessive and the evaporation process does not end before reaching the end of the evaporator.
  • Page 23 7.1.1 Manual mode If manual mode has been selected (par. Et2/Et5), the controller will bring the valve to the number of steps set in parameter Et3/Et6 while remaining in that position; opening and/or closing valve are not active. This can be helpful during the set-up of the machine or in case of maintenance. 7.1.2 Adjustment mode Only at start-up, regardless of the mode of operation, the valve will be completely closed by reaching the maximum number of steps of the Ec13/Ec22 valve plus the extra steps for the complete closure...
  • Page 24 during the initial stage, during the Et53 / Et55 time calculated from ▪ when the defrost starts, if the adjustment of the valve requires an aperture value below the step number set under parameter Et52 / Et54, the valve will not close at a value below Et52 / Et54 (which is therefore the minimum aperture threshold in the initial defrost stage).

  • Page 25: Configuration Valve ↔ Circuit

    time has elapsed, the adjustment will go ahead as it normally does for defrost. The adjustment request is no longer valid and the digital defrost input and the digital adjustment request input are activated at the same time to perform the defrost.

  • Page 26: Valve Management

    Chiller heat Valve adjusts in chiller mode pump Winter mode Chiller only Valve does not adjust - Function is disabled Heat pump only Valve adjusts in heat pump mode Chiller heat Valve adjusts in heat pump mode pump Configuration with two valves associated with a circuit Available configurations: valve 1 and valve 2 associated with circuit 1 valve 1 and valve 2 associated with circuit 2...
  • Page 27 Make sure that the technical documentation of the valve you need to use mentions control by half a step, otherwise this will result in an incorrect control of the valve). An impulse is provided on one or two phases in the suitable sequence based on the direction of rotation of the motor (aperture or closure). The parameters related to the number of steps (maximum number of regulating steps, minimum number of regulating steps, maximum number of steps per second, etc.) are expressed in full steps;...

  • Page 28: Alarm Management

    EXAMPLES OF CONNECTION TO 5-WIRE VALVES UNIPOLAR Due to possible variations in the colour of the wires, before any installation it is recommended to check the technical documentation of the valve to check for any change. Terminal number SPORLAN SAGINOMIYA ORANGE ORANGE YELLOW...

  • Page 29: Description Of Parameters

    Minimum LOP operating pressure alarm The LOP alarm threshold is expressed as a temperature value and is equal to the pressure of probe 3 and probe 4 converted into a temperature value. The LOP alarm is triggered when the equivalent temperature of the pressure probe drops below Et17/Et37 for the Et47 time.

  • Page 30: Parameters To Configure The Relays And Digital Inputs

    • Ec41 Unit of measurement selection Used to select the unit of measurement °C / Bar ÷ °F / PSI • Ec42 Relative or absolute pressure selection Used to select whether the pressure detected by the transducers is relative or absolute 8.2 Parameters to configure the relays and digital inputs •...

  • Page 31: Adjustment Parameters

    • Ec6 / Ec7 = selection of the cooling circuit of valve 1 and 2 • Ec8 = type of gas used in the system (R134a, R407c,...) 8.6 Adjustment parameters • Et1 / Et4 = number of aperture steps at which the valve is set when the adjustment starts and before turning on the compressor (if the IEV is used with a LAN connection to an IC200 EVO) •...
  • Page 32 Once the low superheating threshold has been exceeded, the regulator corrects the adjustment by opening the valve, for each second that passes, of the value expressed with parameter Et18 / Et38 • Et19 / Et39 = maximum aperture percentage of the valve in cooling and heating mode Under special circumstances there might be the need to change the maximum aperture value of the valve.

  • Page 33: Other Parameters

    • Et57 = Increase/decrease opening percentage when the PID is saturated in heating mode • Et58 = Increase/decrease opening percentage when the PID is saturated in defrost 8.7 Other parameters • Ec46 = Communication address of the Modbus protocol • Ec47 = LAN communication protocol address If the driver is used in LAN configuration with a Ichill 200 EVO, the communication address must be assigned both to the Ichill and the IEV driver (the address is the same both in Ichill...

  • Page 34: Parameters Table

    9. Parameters table Parameter Description Unit Resolution measure IEV driver operation mode Ec 1 0= Stand-alone 1= LAN for Ichill EVO Low pressure probes position Ec 2 0= IEV 1= Ichill 200 EVO Not used Ec 3 Valve 1 output operation mode Ec 4 0 = chiller 1 = heat pump...
  • Page 35 Valve 1 configuration Not used Ec 9 Not used Ec 10 Number of additional steps to achieve Ec 11 complete closure. When a closing request is received, the valve starts from the current number of steps and moves to 0, then closes 8000 Full steps for the set number of steps.
  • Page 36 Number of additional steps to achieve Ec 20 complete closure. When a closing request is received, the valve starts from the current number of steps and moves to 0, then closes 8000 Full steps for the set number of steps. For unipolar valves refer to the notes included in paragraph 7.3.
  • Page 37 Pressure value at 20mA / 4.5V Ec29 50.0 Ec 30 PB1 calibration -12.0 12.0 °C Ec 31 °F PB2 calibration -12.0 12.0 °C Ec 32 °F PB3 calibration -12.0 12.0 °C Ec 33 °F -12.0 12.0 -174 PB4 calibration -12.0 12.0 °C °F...
  • Page 38 Relay 2 configuration (o1= active when the Ec 36 contact is open; c1= when active the contact is closed) 0= not used 1= active in case of circuit 1 probe error 2= active in case of MOP, LOP and circuit 1 probe error 3= active in case of high superheating, low superheating, and circuit 1 probe error...
  • Page 39 Digital input 3 configuration (o1= active when Ec 39 the contact is open; c1= when active the contact is closed) 0= not used 1= circuit 1 valve activation 2= circuit 1 valve operation mode (cooling or heating) 3= circuit 1 defrost mode 4= circuit 2 valve activation 5= circuit 2 valve operation mode (cooling or heating)
  • Page 40 LAN address (used only if connected to the Ec 47 IC100 EVO o IC200 EVO) Map code (only reading parameter) 9999 Ec 48 Firmware release (only reading parameter) Ec 49 Not used Ec 50 Not used Ec 51 Not used Ec 52 Not used Ec 53...
  • Page 41 Et 14 Low overheating protection added integral time in chiller mode MOP Protection activation threshold in chiller Et 15 mode. High evaporating temperature threshold. The -70.0 60.0 °C alarm status is signaled after the high °F evaporating temperature alarm activation delay STEP RATE during MOP or LOP protection Et 16 (number of steps every second) in chiller mode...
  • Page 42 High overheating threshold in heat pump Et 32 mode. 80.0 °C Et33 The alarm status is signaled after the high °F overheating alarm activation delay Low overheating threshold in heat pump mode. Et 33 °C The alarm status is signaled after the low Et32 °F overheating alarm activation delay...
  • Page 43 Number of steps the valve 1 has to move Et 52 before compressor start-up. Ec14 Ec13 Full steps For unipolar valves refer to the notes included in paragraph 7.3. Holding time of Et52 steps at the start-up of the Et 53 defrost (valve 1) Number of steps the valve 2 has to move Et 54...

  • Page 44: Alarm Codes And Actions

    10. Alarm codes and actions Code Meaning Cause of alarm Action taken Type of reset displayed Alarm of probe Faulty probe or Blocked adjustment by the valve Automatic when PB1, Pb2, Pb3 value out of closing; connection or Pb4 range Active alarm relay output if enabled problems are by parameter;...
  • Page 45 Minimum Evaporation Automatic action of the controller to Automatic. operating pressure < LOP counteract the LoP; The condition to pressure activation Active alarm relay output if enabled come out from threshold by parameter; minimum delayed by Et39 Enable the buzzer; operating seconds icon flashes;...

  • Page 46: Parameter Programming Key - Hotkey 4K

    ALAn No serial Problem related Blocked adjustment by the valve Automatic on communication to serial closing; the fault being with Ichill communication Active alarm relay output if enabled resolved: with Ichill by parameter; • LAN Enable the buzzer; connection icon flashes; polarity Code of alarm on the display.

  • Page 47: Download

    11.1 DownLoad The download occurs automatically if: • the HotKey 4K is inserted into the connector 5-way while the device is not powered • the instrument is powered • the download started If the device detects the presence of the programming key (connected to the serial port), a key recognition process is launched that involves verification of compatibility of the data and then the data loading process from the key is launched and the data are saved in the internal memory.

  • Page 48: Serial Output

    12. Serial output The IEV valve driver has an RS485 or TTL serial output (only 1 of the 2 outputs can be used) for the following possible uses: • connection to a Personal computer: the configuration parameters of the driver can be programmed via Wizmate Prog Tool kit •...

  • Page 49: General Rules

    • Gas sulfuric and ammonia fumes, saline mist that can cause corrosion and / or oxidation • Presence of flammable gases and explosives • Presence of dust • Presence of devices that generate magnetic interference • Place the device in cabinets where it is ensured: adequate distance between the device and other electrical high power components or power cables...
  • Page 50 Recommendations: - follow the diagram of the device used, for the numbering. - the configuration is determined by the application. - if used as a digital input (potential free - not live), use the same connection configuration as of the sensors.

  • Page 51: Supercap Connection Diagram

    14.2.3 Pressure transducers and ratiometric pressure transducers (0 - 5V) 3-wire sensors that require +5Vdc power supply. 14.2.4 Digital input connection 14.3 Supercap connection diagram XEC supercap module supplies the energy to close the valve in case of power down. XEC supercap doesn’t supply the IEV in normal working conditions, but supplies needed energy to close the valve in case of power down.
  • Page 52 Connection with IEV12D (one valve) Connection with IEV14D (two valves) 1592026270 IEV12-14D GB r.1.0 21.02.2019 53/56...

  • Page 53: Lan Connection

    14.4 LAN CONNECTION IEV12D or IEV14D can be connected to an IC100 EVO or IC200 EVO series. Evaporating temperature probe has to be connected to the IEV and suction pressure transducer can be connected to the IEV or to the Ichill (by configuring dedicated parameters). To guarantee the best regulation is recommended to connect the suction pressure transducer directly to the IEV.

  • Page 54: Plastic Container

    15. PLASTIC CONTAINER The controllers are fitted on a DIN rail (EN 50022, DIN 43880). Assembly: On a DIN rail (EN 50022, DIN 43880) Fastened with screws via the removable plastic flaps. Material: PC-ABS Thermoplastic Self-extinguishing: V0 (UL94) Comparative Tracking Index 300V (CTI):...

  • Page 55: Analogue Inputs

    16.2 Analogue inputs Number of inputs: Type of analogue input: NTC (-50T110°C; 10KΩ at 25°C) / (-58T230°F;10KΩ (configurable software at 25°C) parameter) PTC (-55T150°C; 990Ω at 25°C) / (-58T302°F; 990Ω at 25°C) PT1000 (-50T100°C ; 1K Ω at 0°C) / (-58T212°F; 1KΩ at 0°C) Rathiometric: 0 to 5V (input resistance 3.7KΩ) Current: 4 to 20 mA (input resistance 100Ω)

  • Page 56: Operating Conditions

    16.5 Operating conditions Operating temperature: -10°C ÷ 55°C Storage temperature: -30°C ÷ 85°C Relative humidity: 20% ÷ 85% Degree of protection IP 1592026270 IEV12-14D GB r.1.0 21.02.2019 57/56...

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Dixell iev14d

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