CIAT XtraConnect 2 Installation, Operation, Commissioning, Maintenance
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CIAT XtraConnect 2 Installation, Operation, Commissioning, Maintenance

CIAT XtraConnect 2 Installation, Operation, Commissioning, Maintenance

Microchip and lcd display electronic regulation and signaling electronic module for liquid coolers and heat pumps
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Installation
Fonctionnement
Mise en service
Maintenance
Installation
Operation
Commissioning
Maintenance
Montage-
Betriebs-und
Wartungs-
Anweisung
Instalación
Funcionamiento
Puesta en marcha
Mantenimiento
NA 10.139 B
06 - 2011
Module électronique de
régulation et de signalisation
à microprocesseurs pour
refroidisseurs de liquide
et pompe à chaleur
Microchip and LCD display
electronic regulation and
signaling electronic module
for liquid coolers
and heat pumps
Elektronisches Regel- und
Anzeigemodul mit
Mikroprozessor und LCD-
Anzeige für
Flüssigkeitskühler
und Wärmepumpe
Módulo electrónico de
regulación y señalización a
microprocesador y visualizador
LCD para enfriadores de líquido
y bomba de calor

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Summary of Contents for CIAT XtraConnect 2

  • Page 1 NA 10.139 B 06 - 2011 Module électronique de régulation et de signalisation à microprocesseurs pour refroidisseurs de liquide et pompe à chaleur Microchip and LCD display electronic regulation and signaling electronic module for liquid coolers and heat pumps Elektronisches Regel- und Anzeigemodul mit Mikroprozessor und LCD- Anzeige für...

  • Page 2: Table Of Contents

    CONTENTS PAGE   1 IMPORTANT RECOMMENDATIONS   1.1 Electrical power supply   1.2 Specifications of the X 2 board TRACONNECT   1.3 Warning   1.4 Earthing   1.5 Connection of sensors   1.6 Connection of the communication buses and of the remote console  ...
  • Page 3   15.3 Forced stop of compressors   15.4 Time counter   15.5 Oil warm-up time   15.6 Management of electrical quantities   15.7 Limitation of operation of the machines based on the outdoor temperature:   15.8 Soft stop via the On/Off button:  ...

  • Page 4: Important Recommendations

    1 IMPORTANT RECOMMENDATIONS Your unit is equipped with a microprocessor-controlled electronic circuit board. To ensure the correct operation of your machine, you must follow the rules listed below. Maximum distance: 25 m. 1.1 Electrical power supply 1.6 Connection of the communication buses and ●...

  • Page 5: Description

    2.1 Description The Xtraconnect 2 control module consists of: - The controls on the local console are enabled regardless of the value of P103. ● Machines with 2 and 3 circuits on module 1: - All faults can be reset from the FAULT MEMORY menu.

  • Page 6: Description Of The Motherboard

    12 11 10 9 8 7 6 5 4 3 2 1 11 10 9 8 7 6 5 4 3 2 1 CIAT GAMME CONNECT2 1 2 3 4 5 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 7: Hydraulic module heater control.

  • Page 7: Description Of Expansion Board 3 (Add3) On A 2-Circuit Machine And With The Rotary Switch Set

    2.3 Description of expansion board 3 (ADD3) on a 2-circuit machine and with the rotary switch set to '1' 11 10 11 10 1 3 5 7 9 111315 CIAT GAMME CONNECT2 ADD3 2 4 6 8 10121416 9 10 11 12 9 10 11 12 1-2: Pump 1 speed control (+ on terminal 1).

  • Page 8: Description Of Expansion Board 3 (Add3) On A 3-Circuit Machine. Module 2, Rotary Switch Set

    2.4 Description of expansion board 3 (ADD3) on a 3-circuit machine. Module 2, rotary switch set to '2' 11 10 11 10 1 3 5 7 9 111315 CIAT GAMME CONNECT2 ADD3 2 4 6 8 10121416 9 10 11 12 9 10 11 12...

  • Page 9: Description Of Expansion Board 1 On A 3-Circuit Machine. Module 2, Rotary Switch Set

    5: Phase input common to terminals 6, 7 and 8. TERMINAL BLOCK J5 (on/off inputs) 6: Circuit 3 fan 4 output. 1: 230 V phase input common to the terminal outputs (24 V for 7: Circuit 3 fan 5 output. inverter compressor).

  • Page 10: Connection Via Rs485 Serial Port For Bms Or Control Console And Multiconnect With 500 Kw Module

    2.6 Connection via RS485 serial port for BMS or control console and Multiconnect with 500 kW module 2 motherboard TRACONNECT ULTI ONNECT motherboard Unit 2 Shield expansion board A B 0V A B 0V 1 2 3 4 Shield See detail B Local console Remote control RS485 link to BMS...

  • Page 11: Relay Board

    A C C E S S - Level 3 provides automatic access to all levels (CIAT technicians). - Level 2 provides access to levels 1 and 2 only (Technicians/Maintenance and CIAT technicians). - Level 1 provides access to level 1 only (all users).

  • Page 12: Configuring Access Levels On The Controller

    - Using the + and – buttons, replace this first symbol (*) by the first character in the code and press OK. Do the same for the second, third and fourth symbols. When the last character is entered and OK is pressed, the following menu appears: L E V E L N E W C O D E...

  • Page 13: Management Of The Numeric Codes For Accessing Levels 2 And

    3.4 Management of the numeric codes for accessing levels 2 and 3 - Access to level 3 is direct for anyone with a PC running the program needed to communicate with Xtraconnect 2 and who connects to the board. - Level 2 and level 3 access codes may be obtained only from CIAT Service technicians. Please contact your local CIAT Service office.
  • Page 14 Description Setting Default Display conditions PTION ONTINUED Master/slave control of two machines Yes/No Total recovery Yes/No If P2 = 2 Breakdown High pressure, HP1 sensor 10 to 50 bar (resolution: 0.1) Low pressure, HP1 sensor –1 to 10 bar (resolution: 0.1) –0.5 High pressure, HP2 sensor 10 to 50 bar (resolution: 0.1)
  • Page 15 Description Setting Default Display conditions Management of setpoints (continued) If P119  2, P120 = 2 or 3 Cooling setpoint 2 P52 + 1 K at 30°C (resolution: 0.1) P119  1 and P120  4 Heating setpoint 1 20 to +6°C (resolution 0.1) P119 ...
  • Page 16 Description Setting Default Display conditions Fan management (continued) Circuit 1 stage differential 2 to 6 bar if P21 = 1, 2 If P2 = 2 3.8 if P21 = 3 Circuit 1 interstage differential 0.5 to 3 bar If P2 = 2 Circuit 2 stage differential 2 to 6 bar If P2 = 2...
  • Page 17 Description Setting Default Display conditions Operation (continued) 276.2 Electricity (module 1) If P3 = 3 and P15 = Yes 276.3 Electricity (module 2) If P3 = 3 and P15 = Yes If P119  Cooling Runtime in heating mode If P119  Heating Runtime in cooling mode Pump 1 runtime (in hours) Pump 2 runtime (in hours)
  • Page 18 Description Setting Default Display conditions Circuit 3 display (continued) No. of LP3 cut-outs in 24 hours If P3 = 3 No. of circuit 3 start-ups If P3 = 3 Circuit 3 runtime (in hours) If P3 = 3 Circuit 3 short-cycle protection If P3 = 3 No.
  • Page 19 Description Setting Default Display conditions (continued) UTPUTS State of circuit 2 fan stage 3 If P2 = 2 State of circuit 2 fan stage 4 If P2 = 2 and P8 > 2500 State of circuit 2 fan stage 5 If P2 = 2 and P8 >...

  • Page 20: Contents Of The Menus

    5 CONTENTS OF THE MENUS The list of parameters as well as the parameter values will scroll faster and faster if you press and hold down the + or – the button. To access a numbered submenu from the main menu, simply place the cursor on the corresponding line with the + or the – button then press OK.

  • Page 21: Measured Values Menu

    - If an automatic operation control or on/off fault occurs. Example: U N I T S T A T U S O N / O F F  Unit status table Appears only if a message is displayed Example: U N I T S T A T U S F A N F A U L T...

  • Page 22: Unit Parameters Menu

    5.5 Unit parameters menu To enter the UNIT PARAMETERS menu, press + or – to position the cursor on 4 then press OK. The display shows the list of configuration parameters. Use the + and – buttons to scroll through the tables at a rate of two rows at a time. To modify a parameter the configuration must be unlocked (via parameter P99).

  • Page 23: Reading Parameters Menu

    setpoints (1 or 2) and how they are controlled (see section 17). P100 Language: used for setting the display language. P101 Date: used for setting the date. P121 Cooling setpoint 1 (see section 17). P122 Cooling setpoint 2 (see section 17). P102 Time: used for setting the time.

  • Page 24: Fault Memory Menu

    P273.2 Supply voltage (module 2). P406.1 State of phase controller input (circuits 1 and 2). P274.1 Machine current input. P406.2 State of phase controller input (circuit 3). P274.2 Current input (module 1). P408 Pump 1 input state. P274.3 Current input (module 2). P409 Pump 2 input state.

  • Page 25: Test Mode Menu

    x - E M E R G E N C Y S T O P x - C U S T O M E R F A U L T x - C I R C U I T x - C I R C U I T x - C O M P R E S S O R M O T O R x - L U B R I C A T I O N...

  • Page 26: Time Schedules Menu

    To run the compressor at full capacity (100%), press + . The word •intake• flashes if the intake valve is open. To run the compressor at half capacity (50%), press – . The word •exhaust• flashes if the exhaust valve is open. If the compressor is off: compressor started then adjusted to the desired capacity (full load or half load) The following message appears if the compressor cannot be started (2 minute off time;...

  • Page 27: Master/Slave Menu

    - The Aero-connect parameters are preceded by the letter A to differentiate them from the Xtraconnect 2 parameters. - If a dry cooler equipped with its Aero-connect console is connected to Xtraconnect 2 and P116 is set to 'Yes', neither console has priority over the other.

  • Page 28: Load Shedding Control

    This on/off input detects a low water flow through the evaporator of the machine that is operating (automatic machine control input closed).  Operation in cooling mode: - This input must be read 10 second after pump 1 is started (or pump 2 if P24 = Yes and P25 = 2. Case of CIAT hydraulic module with two pumps).

  • Page 29: Phase Controller Fault

    6.5 Phase controller fault The phase controller protects the entire machine. It must be wired to terminals 7-8 on terminal block J5 on the motherboard. The machine is shut off when a fault occurs on the phase controller (contact opens. Fault message: M A C H I N E S T O P P E D...

  • Page 30: Fan Fault (Circuits 1, 2 And 3)

    - Emergency stop fault relay on optional board in On position. - General fault LED on console lit steadily. Display: U N I T S T O P E M E R G E N C Y S T O P ●...

  • Page 31: High-Pressure Switch Fault On Circuit 1, 2 Or

    ● Operation : - If the pressure measured by the LP pressure transmitter is ≤ P55, the Xtraconnect 2 controller records an LP fault. - The low pressure is monitored 120 seconds after the compressor starts up (it is also monitored when the compressor is stopped).

  • Page 32: Minimum Desuperheat Discharge Fault

    6.14 Minimum desuperheat discharge fault ● Operation: - This function monitors the compressor desuperheat temperature (prevents slugging). - The minimum superheat temperature is calculated by the following equation: (discharge temperature – condensing temperature). - The minimum superheating discharge threshold is stored in parameter P56. - The fault is taken into account 15 minutes after the compressor is turned on.

  • Page 33: Minimum And Maximum Superheat Fault

    ► Fault after 3 minutes (P2 = 2 and outdoor temperature below –10°C) - The second check for this fault is taken into account 3 minutes after the compressor starts if HP-LP < 3 bar for 5 seconds (fault not managed when compressor stopped).

  • Page 34: Management Of The Analogue Inputs

    ● If a temporary fault occurs: - Fault not stored in memory if a mains power failure occurs. - Fault stored in fault memory. - The minimum or maximum superheat fault relay on the relay board is in the Off position. During test mode, the time delays are counted down in seconds, not minutes.

  • Page 35: Pressure Sensor

    ► Fault detection values: - 10 K sensors: short circuit fault if < –40°C. Sensor cut (or sensor - 50 K sensors: short circuit fault if < 5°C and the unit has been missing) if > 99°C. running for 5 minutes. Sensor cut (or sensor missing) if > 148°C. ►...

  • Page 36: Pump Management

    ► One pump with fault management both pumps are turned off. → P24 = Yes and P25 = 1 CIAT hydraulic module with one pump 10. EVAPORATOR WINTER AND FROST PROTECTION  POWERCIAT LXH hydraulic module defrost heater (if P24 = Yes) The heater's operation is dependent on the temperature measured by the hydraulic module's sensor.

  • Page 37: Management Of The Outputs Of Liquid Valves 1, 2 And

    ● If a fault occurs - Compressors turned off. - Fans turned off. - Contact closes (board output 3) and turns on the evaporator heater (option). - Machine fault relay on optional board in On position. - General fault LED on console lit steadily. - Display: E V A P O R A T O R A N T I F R E E Z E...

  • Page 38: Management Of The 25% Output Compressor Valves

    15.6 Management of electrical quantities Using an off-the-shelf module, the values are retrieved over the Bus connection and displayed in the measured values and reading parameter menus on the Xtraconnect 2 controller's display. U 3 : 4 0 6 V ↑...

  • Page 39: Limitation Of Operation Of The Machines Based On The Outdoor Temperature

    2 7 6 . 1 E L E C P O W E R C O N S U M E D x x x x K W H To reset parameter P276.1 (electric power consumed), select it then press OK. The following message appears: R E S E T E L E C P O W E R...

  • Page 40: Soft Stop Via The On/Off Button

    This function is activated by assigning the three-way valve value to parameter P26 (programmable output). The valve must be connected between terminals 2 (0 V) and 3 (10 V) on terminal block J4 on expansion board 3 (ADD3) of the Xtraconnect 2.

  • Page 41: Operating Principle

    17.1 Operating principle: The master machine sends the following information to the slave machine: - On/off. - Heating/cooling mode - Control temperature. The master machine will not have access to detailed information about the slave machine (fault details, operation readings, unit parameters, reading parameters, etc.) and vice versa.

  • Page 42: Controls

    Corresponding message on each machine: W A T E R T E M P E R A T U R E M A I N T A I N 3 0 °  In cooling mode: - This function is possible if P142 on the master machine = Yes, the units are set to On, and the automatic operation control inputs on both machines are open.

  • Page 43: Unit Status Menu

    The parameters that determine when the other stages turn on and off remain managed by each machine. The value of P806 will have to be selected based on machine 1 in order to achieve an operating order similar to the start-up of the last stage (see figure previous page).{ •...

  • Page 44: Operating Mode

    18.2 Operating mode The operating mode cannot be changed while the machine is running unless P119 = 5 (automatic machine control or automatic pump control input open, or On/Off set to Off). If the unit is turned back on while P119 is being modified, the parameter closes and returns to its initial value. ►...

  • Page 45: Control Setpoint Calculation

    18.3 Control setpoint calculation 18.3.1 Fixed setpoint ► If P120 = 1 (1 setpoint) ● In cooling mode: - If P127 = No or outdoor sensor fault, control setpoint = P12 - If P127 = Yes (law based on outdoor temperature) and there are no outdoor sensor faults, fixed setpoint (Tout) is calculated using P121 ●...

  • Page 46: Definition Of The Controller For Pid Control (Water Supply Only)

    Displayed if P120 = 3 and cooling mode activated P 1 2 5 . 1 S E T P O I N T F O R 4 m A C O O L I N G - x x , x ° P 1 2 6 .
  • Page 47  Proportional control (P coefficient): X2 - Setpoint Proportional control is the difference, or error (e), between the measurement and the setpoint when the controller time delay equals 0. It is corrected (multiplied) by the P coefficient. Proportional control accelerates the response to the measurement depending on the difference between the measurement and the setpoint. On its own, it does not reduce the difference between the measurement and the setpoint when the load on the loop is stable.

  • Page 48: Water Return Control For Storage (Cristopia)

    18.5 Water return control for storage (CRISTOPIA) This type of control makes it possible to generate a maximum amount of capacity during a given period, often when electricity is cheapest. All the circuits are turned on in turn at 10 second intervals and adjusted to setpoint 2 (P122) and the P155 differential. This type of control is only possible in cooling mode.

  • Page 49: Automated Self-Regulating Control

    18.7 Automated self-regulating control This type of control adjusts the operation of the unit at the head end of the system. If the compressor stops after running for less than 5 minutes, the compressor stage cut-in value is changed but the cut-out points remain unchanged.
  • Page 50  LX 2800: 3 V-frame condenser fan modules per circuit = 5 single-speed stages HP bar  LX 3050 - 3500 with three-and-a-half V-frame condenser fan modules on one circuit and two-and-a half V-frame condenser fan modules on the other = 6 single-speed stages Refrigerating circuit 2 Refrigerating circuit 1 4 ‘common’...

  • Page 51: Fan Speed Control

    Number of control stages for each size of LX/LXH or LWN unit. Standard condensation pressure control (fan assignments) Speed control option Number of Number of P08: Unit V-frame Stage 3 Stage 4 Circuit HP control Controlled On/Off size condenser Stage 1 Stage 2 Stage 5 Stage 6...
  • Page 52  HP with acoustic optimisation P21 = 2 with acoustic optimisation HP bar Default value of P181: 5 to 13 bar (resolution: 0.1) if P1=R134a, Default value: 8 Default value of P182: 25°C Standard control applies to the other parameters. 1 V-frame condenser fan module per circuit = 1 stage (1 fan) with speed control + 1 single-speed stage (same as standard) 2 V-frame condenser fan modules per circuit = 1 stage (2 fans) with speed control + 2 single-speed stages (same as standard) 3 V-frame condenser fan modules per circuit = 1 stage (3 fans) with speed control + 3 single-speed stages (same as standard)

  • Page 53: Condensing Pressure Control On 3-Circuit Machines

     LX 3050 - 3500 with one stage of two or three fans plus one speed-controlled common fan and three stages of two or three fans plus one on/off common fan per circuit: Refrigerating circuit 2 Refrigerating circuit 1 2 ‘common’ 1 ‘common’...

  • Page 54: Control Of Air-Cooled Condenser For Split-System Unit And Dry Cooler

    The condensing pressure on the machine in module 1 is controlled exactly as described in the previous section. The condensing pressure on the machine in module 2 is controlled exactly like a six-stage circuit with four V-frame modules:  On/Off control with 4 V-frame condenser fan modules = 6 single-speed stages: Module 2: refrigerating circuit 3 ...

  • Page 55: Limit Management

     High pressure operation: If the condensing pressure is greater than the control HP limit (P54), Xtraconnect 2 forces the compressor to lower its capacity while running. When the high pressure drops to below 98% of P54, the HP limitation remains on but the compressor is not requested to do anything (intake and exhaust valves left closed).

  • Page 56: Assigning A Communication Address To The Diris Energy Meter

    22 ASSIGNING A COMMUNICATION ADDRESS TO THE DIRIS ENERGY METER Follow the procedure described below when replacing a DIRIS Now press the P PF button twice so that the 0 in the middle starts energy meter already installed on a machine. flashing.
  • Page 57 - If at least one time range or one holiday band is enabled, the machine stop or temp./setpoint message alternates with a message informing the user that the state will be updated on the next time range state change. Each message is displayed for 3 seconds. Message displayed: T I M E P R O G R A M M I N G...

  • Page 58: Communication Protocol

    Select the number of the holiday band to be set then press OK. Setting selections: ↑ T Y P E Z O N E ↓ V A L I D ↑ T Y P E Z O N E ↓ O F F ↑...

  • Page 59: Transmission Mode

    25.2 Transmission mode. ● Serial, asynchronous, half duplex, RTU mode. 3 or 4: read multiple registers (16 bits) 5: write one bit ………….. - 1 start bit. - 8 data bits. 6: write register function… - The parity is set via parameter P702, 8: read diagnostics counters.

  • Page 60: Customer Access Bit

    Register Register No. Description Format Type Setting hexadecimal decimal Registers accessible in read mode (Functions 3 or 4) and write mode (Function 16) (continued) 0x109 and 0x10a 265 and 266 P125.1 Setpoint for 4 mA in cooling mode Float Read/Write 0x10b and 0x10c 267 and 268 P125.2 Setpoint for 4 mA in heating mode...
  • Page 61 Hexadecimal bit Decimal bit Description Type Setting 0x25 to 0x3f reserved 0x40 Circuit 1 fault summary Read-only 1 = Fault 0x41 Compressor 1 fault Read-only 1 = Fault 0x42 Not used Read-only 1 = Fault 0x43 Circuit 1 manual HP fault Read-only 1 - Fault 0x44...
  • Page 62 Hexadecimal bit Decimal bit Description Type Setting 0x82 to 0x9f free (continued) 0x117 Compressor 2 discharge sensor fault Read-only 1 = Fault 0x118 Not used 0x119 Circuit 2 HP sensor fault Read-only 1 = Fault 0x11a Circuit 2 LP sensor fault Read-only 1 = Fault 0x11b...

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