Instruction Sheet PA-00319 June 2013 EC3-X32 Superheat Controller EC3-X32 Superheat Controller with TCP/IP Communication Capability Description EC3-X32 is the superheat controller with TCP/IP connection used in conjunction with Emerson Electrical Control Valves EX4...EX8. Note: This document contains short form instructions for experienced users. Electrical installation •Refer to the electrical wiring diagram for electrical connections. • Do not apply voltage to the controller before completion of wiring. •Ground the metal housing with a 1/4 in spade connector. •Important: Keep controller and sensor wiring well separated from mains wiring. Minimum recommended distance 1.2 in. Warning: Use a class II category transformer for 24VAC power supply. Do not ground the 24VAC lines. We recommend to use individual transformers for EC3 controller and for 3rd party controllers to avoid possible interference or grounding problems in the power supply. Connecting any EC3 inputs to mains voltage will permanently damage the EC3. Digital input status is dependant to operation of compressor/thermostat Safety Instructions •Read installation instructions thoroughly. Failure to comply can result in device failure, system damage or personal injury. •The product is intended for use by persons having the appropriate knowledge and skills. •Disconnect all voltages from system before installation. •Do not operate system before all cable connections are completed. •Comply with local electrical regulations when wiring. Note: The EC3-X32 series contains a lead, acid gel rechargeable battery. The battery must NOT be disposed of with other commercial waste. Instead, it is the user’s responsibility to pass it to a designated collection point for the safe recycling of batteries (harmonized directive 98/101/EEC). For further information contact your local environmental recycling center. Technical data Power supply 24VAC ±10%; 50/60Hz; 1A Power consumption 25VA max. including EX4 … EX8 Plug-in connector Grounding Protection class COM, TCP/IP connection Removable screw terminals wire size 12-20 AWG 1/4 in spade earth connector IP20 RJ45 Ethernet Connection to optional ECC-Nxx or CAT5 cable with RJ45 connectors local ECD-002 Digital Inputs 0/24VAC/DC for stop/start function NTC input Emerson temperature sensor ECN-N60 4-20 mA Analog input Emerson PT4-07M / PT4-18M / PT4-30M 4-20 mA Analog output For connection to any 3rd party controller with 12/24VDC power supply and appropriate burden Output alarm relay SPDT contact 24V AC/DC, 2 Amp inductive load(If L2 = 1) Activated: During normal operation (no alarm condition) Deactivated: During alarm condition or power supply is OFF Output pump down relay SPDT contact 24V AC/DC, 2 Amp inductive load(If L2 = 1) Activated: During normal operation Deactivated: All other conditions Stepper motor output for Maximum current 0.8A with nominal 24VDC EX4…EX8 operating voltage Mounting The EC3-X32 is designed to be mounted onto a standard DIN rail. EmersonClimate.com/FlowControls Commander Operating condition Compressor Compressor starts Compressor stops ThermostatDemand (compressor must be ON) No demand Digital input Closed / 24V (Start) Open / 0V (Stop) Closed / 24V (Start) Open / 0V (Stop) Preparation for Start-up •Evacuate the entire refrigeration circuit. Warning: Emerson Electrical Control Valves EX4...EX8 are delivered at half open position. Do not charge system before closure of valve. •Apply supply voltage 24V to EC3 while the digital input is 0V (open). The valve will be driven to close position. •After closure of valve, start to charge the system with refrigerant. Possibilities of connecting EC3-X32 to a network or PC A TCP/IP Controller Readme file is available on the www.eCopeland.com website to provide detailed information about TCP/IP Ethernet connectivity. Please refer to this file if you need information beyond the contents of this instruction sheet. 1) Connect the EC3-X32 using the optional ECC-Nxx cable assembly or a standard CAT5 network cable with RJ45 plugs assembly to a network or router that enables the controller to receive a dynamic TCP/IP address or 2) Connect the EC3-X32 to a computer using a crossover cable plugged directly into the Ethernet port. In this case, the TCP/ IP address of the computer must be manually modified to be compatible with the default address of the controller. Refer to the TCP/IP Controller-Readme file for more details. Wiring Setting and Visualizing Data: WebPages (recommended method) Important: Make sure that digital input is 0V (open). Turn the power supply ON. Four parameters i.e. refrigerant type (u0), pressure sensor type (uP), valve type (ut) and control mode can be set only when digital input is open (0V) while the power supply is ON (24V). This feature is for added safety to prevent accidental damage of compressors and other system components. All other parameters can be modified at any time. The EC3-X32 has a TCP/IP Ethernet communication interface enabling the controller to be directly connected to a network or a PC via the standard Ethernet port. The EC3-X32 controller has embedded WebPages to enable the user to visualize the parameter lists using real text labels. To view WebPages on the PC, a standard WebBrowser like Internet Explorer® or Mozilla Firefox and JRE Java Runtime Environment is needed. JRE can be downloaded at no charge from the www.java. com website. Open the Internet browser program on the computer and, if EC3-X32 is connected directly to PC with a crossover cable enter the default TCP/IP address of the controller (192.168.1.101) into the address line, or the dynamic address from the DHCP server from network/ Router. Refer to the TCP/IP Controller-Readme file if a specific port is required. It is possible to identify the dynamic TCP/IP address assigned by DHCP of the Router or network, refer to the TCP/IP Controller-Readme file. After a few moments, the default monitoring page should be displayed. If the browser does not open the default page or display active data, the user should check the Internet browser “Option” configuration. Refer to the TCP/IP Controller-Readme file. The Monitoring and Alarm WebPages are read only and therefore it is not necessary to enter a username or password. A username and password will be requested upon the initial request to any of the other WebPages. The factory default settings are: Username: “EmersonID” , Password: “12” The default settings may be modified on the Display configuration page. Press the tabs at the top of the Monitoring page with a left click of the mouse button to enter the respective Webpage. The parameters will be visualized in real text together with the program code as defined in the parameter list below. After the parameters have been modified, the complete list of settings can be saved to the memory of the computer and used later to upload into another controller. This can save a considerable amount of time when using multiple controllers and over a period of time, a library can be created containing the parameter lists for equipment for different applications. It is also possible to display live graphical data from the controller. Superheat, evaporating pressure, coil-out temperature and evaporating temperature are available on a 15 minutes rolling chart. Refer to the TCP/IP Controller-Readme file for a complete description of the features available for the TCP/IP series of controllers. A: White wire B: Black wire C: Blue wire D: Brown wire E: M12 Plug cable assembly EX5-Nxx for connection to EX4/EX5/ EX6/EX7/EX8 F: Remote control panel, system controller G: Alarm relay, dry contact. Relay coil is not energized at Alarm or power off H: Digital input (0V/open = Stop; 24V/closed = Start) I: Transformer Class II, 24VAC secondary / 25VA J: Third party controller (can use the analog output signal from EC3) 2 Alternative procedure for parameter modification using ECD-002 List of parameters in scrolling sequence by pressing Note: Some of the functions/parameters (manual control and TCP/IP configuration) can not be modified when using ECD-002 comparing to a set-up by PC via TCP/IP. Warning: All alarms are disabled during manual control. We do not recommend unattended operation of system during manual control. The parameters can be accessed via the 4-button keypad. The configuration parameters are protected by a numerical password. The default password is “12”. To select the parameter configuration: •Press the PRG button for more than 5 seconds, a flashing “0” is displayed. •Press or until "12" is displayed (password). •Press SEL to confirm password. •Press or to show the code of the parameter that has to be changed. •Press SEL to display the selected parameter value. •Press or to increase or decrease the value. •Press SEL to temporarily confirm the new value and display its code. Repeat the procedure from the beginning "press or to show..." To exit and save the new settings: •Press PRG to confirm the new values and exit the parameters modification procedure. To exit without modifying any parameters: •Do not press any button for at least 60 seconds (TIME OUT). Special Functions •Press or together for more than 5 seconds, a flashing "0" is displayed. •Press or until the password is displayed (default = "12"). If password was changed, select the new password. •Press SEL to confirm password. A "0" is displayed and the Special Function mode is activated. •Press or to select the function. The number of special functions is dynamic and controller dependent. See list below. 0: Reset controller to factory settings (this action is possible only when digital input is 0V i.e. open). 1: Displays the current TCP/IP address. 2: Assign temporary 192.168.1.101 as TCP/IP address if EC3-X32 has different address. •Press SEL to activate the function without leaving the special function mode. •Press PRG to activate the function and leave the special function mode. ECD-002 Display/Keypad Unit (LEDs and Button Functions) Blinking: valve is opening ON: valve is fully open Blinking: valve is closing ON: valve is fully closed Parameters setting/saving Next parameter/ value (higher) ON: demand OFF: no demand Blinking: pump down ON: alarm OFF: no alarm Prg & Sel (5 sec) Manual reset for blinking alarm codes Next parameter/ value (lower) Selecting/confirming Control (valve) start-up behavior (Parameter uu and u9) * Min. and Max. setting values are dependant to selected type of refrigerant. % Pump down function (if P6 = 1 and L2 = 1) uu u9 Sec. Digital input status Alarm Condition 24V (ON) NO 0V (OFF) NO 0V or 24V YES EC3-X3 BA.cdr EX4/5/6 ≤ 1.5 seconds EX7 ≤ 3.2 seconds EX8 ≤ 5.2 seconds button Factory Field Code Parameter description & choices Min Max Setting Setting H5 Password 1 199 12 u0 System Refrigerant 071 0 = R22; 1 = R134a; 2 = R507; 3 = R404A; 4 = R407C; 5 = R410A; 6 = R124; 7 = R744 (subcritical application) uP Installed pressure sensor type 0 2 0 0 = PT4-07M (for R22/R134a/R507/R404A/R407C/R124) 1 = PT4-18M (for R410A) 2 = PT4-30M (for R744, subcritical) ut Installed valve type 1 5 5 1 = EX4; 2 = EX5; 3 = EX6; 4 = EX7; 5 = EX8 uu Start valve opening (%) 10 100 50 u9 Start opening duration (second) 1 30 5 uL Low superheat alarm function 0 2 1 0 = disable (for flooded evaporator) 1 = enable auto reset 2 = enable manual reset Cut-out at 1°F (if it maintains 1 min.); Cut-in immediately at 3°F u5 Superheat set-point (°F) If uL enabled (auto or manual) 5.4 54 10.8 If uL disabled 0.9 54 10.8 u2 MOP function 011 0 = disable 1 = enable u3 MOP set-point (°F) saturation temperature* * X Factory setting is according to selected refrigerant (u0): +55°F for R22 +59°F for R134a +45°F for R507 +45°F for R404A +59°F for R407C +59°F for R410A +122°F for R124 +23°F for R744 ┌┘1 Value to show 0 4 0 0 = Measured superheat (F) 1 = Measured evaporator pressure (psi) 2 = Valve opening (%) 3 = Measured coil-out temp. (°F) 4 = calculated evaporating temperature (°F) from the pressure ┌┘5 Units conversion 010 0 = °C, K, bar 1 = °F, R, psig (Psig values are divided by 10. Example: Display 12.5 is 125 psig) u4 Superheat control mode 0 1 0 0 = Standard, 1 = Slow uH High superheat alarm function 0 1 0 0 = disable, 1 = enable auto reset uA High superheat alarm setpoint 16 40 30 ud High superheat alarm delay, min. 1 15 3 P2 Freeze protection cut-out, °F -40 104 32 P3 Freeze protection cut-in, °F -35 109 37 P4 Freeze protection alarm function 0 2 0 (0 = disable, 1 = enable auto-reset, 2 = enable manual reset) P5 Freeze protection alarm delay, sec. 5 199 30 P6 Pump-down function 010 (0 = disable, 1 = enable auto-reset) P7 Pump-down cut-out, psig -7.3 261.1 0.5 P8 Pump-down time delay, sec. 0 199 30 P9 Low pressure alarm function 0 2 0 (0 = disable, 1 = enable auto-reset, 2 = enable manual reset) PA Low pressure alarm cut-out, psig -11.6 256.7 0 Pb Low pressure alarm delay, sec. 5 199 5 Pd Low pressure alarm cut-in, psig -7.3 261.1 0.3 b1 Battery error management, when battery 032 is defective (EC3-X33 only), see below: Alarm Reset possibility after Value Display Alarm Relay Valve recovery/replacement 0 – – Regulating – 1 Ab – Regulating – 2 Ab Signalling Fully close Auto 3 Ab Signalling Fully close Manual (blinking) L2 Output logic 031 0: Alarm = normal, pump down. = normal 1: Alarm = inverse, pump down. = normal 2: Alarm = normal, pump down. = inverse 3: Alarm = inverse, pump down. = inverse 3 Pump down relay Activate Deactivate when pressure drops below P7 and after elapsed time P8 Deactivate Start-up Mounting of ECD-002 Start the system and check the superheat and operating conditions. The EC3-X32 is fully functional without connected PC or keypad/display unit ECD-002. ECD-002 can be installed at any time also during operation. •ECD-002 can be mounted in panels with 2.8x1.1 in cutout •Push controller into panel cut-out. (1) •Make sure that mounting lugs are flush with outside of controller housing •Insert allen key into front panel holes and turn clockwise. Mounting lugs will turn and gradually move towards panel (2) •Turn allen key until mounting lug barely touches panel. Then move other mounting lug to the same position (3) •Tighten both sides very carefully until keypad is secured. Do not over tighten as mounting lugs will break easily. Dimensions EC3-X32 2.9 4.1 5.4 2.5 ECD-002 1.42 3.1 Cutout 2.8 x 1.1 in .2 1.44 Error/Alarm Handling Alarm code E0 E1 Description Pressure transmitter error Temperature sensor error Related Alarm parameter relay - Signalling - Signalling Valve Fully close Fully close What to do? Check wiring connection and measure the signal 4 to 20 mA Check wiring connection and measure the resistance of sensor AΠ EX4…EX8 electrical - Signalling - Check wiring connection and measure the resistance of winding connection error Ab b1: 1 - Regulating Battery potentially does not have enough charge to close valve in case Ab Battery error b1: 2 Signalling Fully close of main power supply interruption. May occur temporarily with new Ab blinking b1: 3 Signalling Fully close controllers or after long storage but should disappear when battery is charged sufficiently. If Ab remains active even when battery is charged, battery may be defective and should be replaced. AE blinking Pump down action can not P6: 1 Signalling - Allocate the source, which does not let suction pressure drops be accomplished below desired set-point AF Freeze protection P4: 1 Signalling Fully close Check the system for cause of low pressure such as AF blinking P4: 2 Signalling Fully close insufficient load on evaporator AL Low superheat (<1°F) uL: 1 Signalling Fully close Check wiring connection and operation of valve AL blinking uL: 2 Signalling Fully close AH High superheat uH: 1 Signalling Fully close Check the system AP Low pressure P9: 1 Signalling Fully close Check the system for cause of low pressure such as refrigerant loss AP blinking P9: 2 Signalling Fully close Er Data error display – - - - Data send to the display is out of range. Check temperature out of range and pressure sensor. Note: When multiple alarms occur, the highest priority alarm is displayed until being cleared, then the next highest alarm is displayed until all alarms are cleared. Only then will parameters be shown again. Requires manual reset after resolving alarm No No No Yes Yes No Yes No Yes No No Yes No Message — No data to display The display will show an “—” at start up and when no data is sent to ECD-002 Checking system operating conditions using local display/keypad ECD-002 The data to be permanently shown on the display can be selected by the user (parameter ┌┘1). It is possible to temporarily display these values. However, this function is not available in an alarm condition. The display will show for one second the numerical identifier of the data (see ┌┘1 parameter) and then the selected data. After 5 minutes, the display will return to the value selected by parameter ┌┘1. Service/Troubleshooting Symptom Cause Action Operating superheat is several degrees higher or Incorrect signal from pressure or 1- Check the sensors lower than set-point temperature sensors 2- Make sure ECN-N60 temperature sensor is used 3- For optimum accuracy, please use: PT4-07M for R22/R134a/R507/R404A/R407C/R124 PT4-18M for R410A PT4-30M for R744 4- Make sure the sensor cables are not installed along with other high voltage cables Operating superheat is too low i.e. compressor wet running 1- Incorrect wiring of ECVs 1- Check the wiring 2- Defective sensors 2- Check the sensor Valve is not fully closed 1- The digital input is ON (24V) 1- Valve is shut off only when the digital input is turned off (0V) 2- Wrong setting of parameter ut. 2- Check the setting of parameter ut Instable superheat (hunting) Evaporator is designed to operate Increase the superheat set-point at higher superheat Valve opens when EC3 commands to close and vice versa Wrong wiring between EC3-X32 Correct the wiring and valve EX8 is not able to open at high differential pressure Wrong setting of parameter ut Check the parameter ut. (Larger valve requires higher torque and higher current) Superheat set-point is shifting after several months of Stepper motor driven valves Do not apply permanent 24V digital input. Interrupt digital input uninterrupted operation or permanent jumper of 24V require synchronization once every week for 5 seconds if compressor never stops. digital input EmersonClimate.com/FlowControls Technical Support: 1-866-625-8416 4 PA-00319 (06/13) Emerson is a trademark of Emerson Electric Co. ©2013 Emerson Climate Technologies, Inc. All rights reserved.
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