Mitsubishi Electric s-MEXT-G00 006 Technical Manual
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Mitsubishi Electric s-MEXT-G00 006 Technical Manual

Computer room air conditioner
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COMPUTER ROOM AIR CONDITIONER
MODEL
s-MEXT-G00 006-044
TECHNICAL MANUAL
TRANSLATION OF THE ORIGINAL INSTRUCTIONS
EN
The information in this document may be modified without prior notice.
The reproduction and/or dissemination of this document, even in part, is prohibited without the written
consent of MEHITS S.p.A.
For ME28-relC software versions

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Summary of Contents for Mitsubishi Electric s-MEXT-G00 006

  • Page 1 COMPUTER ROOM AIR CONDITIONER MODEL s-MEXT-G00 006-044 TECHNICAL MANUAL TRANSLATION OF THE ORIGINAL INSTRUCTIONS For ME28-relC software versions The information in this document may be modified without prior notice. The reproduction and/or dissemination of this document, even in part, is prohibited without the written...
  • Page 2 TM_s-MEXT_ME28relC_00_12_19_EN PAGE LEFT INTENTIONALLY BLANK TRANSLATION OF THE ORIGINAL INSTRUCTIONS Technical manual...
  • Page 3 TM_s-MEXT_ME28relC_00_12_19_EN Before carrying out any operation on the machine, you must carefully read this manual and make sure you understand all the instructions and information given Keep this manual in a known and easily accessible place to refer to as necessary during the entire life-span of the unit. TRANSLATION OF THE ORIGINAL INSTRUCTIONS Technical manual...

  • Page 4: Table Of Contents

    TM_s-MEXT_ME28relC_00_12_19_EN CONTENTS INTRODUCTION ..............................................7 SAFETY REQUIREMENTS ........................................7 GENERAL FUNCTIONS ..........................................7 UNITS CONTROLLED..........................................7 USER INTERFACE ............................................8 USER TERMINAL ............................................8 2.1.1 Technical characteristics ........................................8 2.1.2 General functions of keys and LEDs ....................................8 GENERAL CHARACTERISTICS OF THE INTERFACE................................9 2.2.1 Groups of masks and menu structure....................................
  • Page 5 TM_s-MEXT_ME28relC_00_12_19_EN INTERNAL AIR FAN MANAGEMENT......................................85 10.1 INTRODUCTION ............................................85 10.2 STANDARD OPERATION ........................................85 10.3 MODULATING FUNCTION ........................................85 10.4 ECONOMY FUNCTION ..........................................85 10.5 AUTOMATIC SPEED REGULATION FUNCTION ................................... 86 10.5.1 Constant flow rate regulation ......................................86 10.5.2 Calibrating the constant flow function ....................................
  • Page 6 TM_s-MEXT_ME28relC_00_12_19_EN 20.8.1 Preliminary considerations ......................................118 20.8.2 Management algorithm ........................................118 20.8.3 Examples............................................118 20.8.4 Consequences of the alarm ......................................120 20.9 REACTIONS TO ALARMS WITHIN THE LAN NETWORK ..............................120 20.9.1 Missing Air Flow alarm event ......................................120 20.9.2 Gas Leak Detected alarm event .....................................

  • Page 7: Introduction

    TM_s-MEXT_ME28relC_00_12_19_EN INTRODUCTION SAFETY REQUIREMENTS The software described in this document was designed for use with precision air-conditioning units such as “Close Control” units (for data processing centres). The software was designed for use on the following control systems: • control board EVOLUTION+ – Small with user terminals and PGD1 graphic interface ATTENTION The EVOLUTION+ controller software is protected by a digital signature.

  • Page 8: User Interface

    TM_s-MEXT_ME28relC_00_12_19_EN USER INTERFACE USER TERMINAL 2.1.1 Technical characteristics The user interface comprises: • 132x64 pixel backlit LCD display. • 6 backlit buttons. The connection between the microprocessor board and the user terminal involve a 4-pole telephone cable equipped with RJ11 connector. The terminal is fed directly from the control board.

  • Page 9: General Characteristics Of The Interface

    TM_s-MEXT_ME28relC_00_12_19_EN GENERAL CHARACTERISTICS OF THE INTERFACE 2.2.1 Groups of masks and menu structure The tree structures for moving around the various menus of the controller are shown below. The masks may be accessed through different menus using the [UP] and [DOWN] keys shown in the following figures with a double arrow .
  • Page 10 TM_s-MEXT_ME28relC_00_12_19_EN User Menu    Serial Menu Esc /  Serial Menu Selection    Alarm Out Menu Esc /  Alarm Out Menu Selection    Scheduler Menu Esc /  Scheduler Menu Selection    Info Menu Esc / ...

  • Page 11: Password Management

    TM_s-MEXT_ME28relC_00_12_19_EN Factory menu    Selection Config. Esc /  Config. menu menu    Selection Esc /  Functions menu Functions menu    Selection Esc /  Compressor menu Compressor menu    Selection Valve Esc / ...
  • Page 12 TM_s-MEXT_ME28relC_00_12_19_EN To change the “User” password access the “Info” menu inside the “User” menu and scroll the masks until the “User” password change mask appears: Insert a NEW USER password 0000 The window to change the “Service” password, which can be accessed by entering the “Settings” menu, under the “Service” menu. The window to change the “Factory”...

  • Page 13: Main Mask

    TM_s-MEXT_ME28relC_00_12_19_EN MAIN MASK The figure below shows the main mask layout, including the (numbered) areas in which it is divided. ZONE ZONE 1 ZONE 2 ZONE 11 ZONE 3 ZONE 3_A ZONE 8 ZONE 9 ZONE 7 ZONE 4 ZONE 5 ZONE 6 ZONE 10 Figure 2-6: Main mask...
  • Page 14 TM_s-MEXT_ME28relC_00_12_19_EN Zone 3: Type of event, shown in case of event EEPROM faulty Room temperature probe faulty LAN disconnected Room humidity probe faulty ADL function at operating limit Feed air temperature probe faulty Water leaks (flooding) External air temperature probe faulty High ambient temperature Differential pressure transducer faulty Low ambient temperature...
  • Page 15 TM_s-MEXT_ME28relC_00_12_19_EN Zone 7: “Hot” devices currently in operation First electrical element step active Second electrical element step active Third electrical element step active Electric heaters Post-Ventilation function active Blinking Zone 8: Current unit ON/OFF status This parameter can also be used to switch the unit on/off. Zone 9: Serial address of the unit (when supervision operation enabled).

  • Page 16: Main Loop Masks

    TM_s-MEXT_ME28relC_00_12_19_EN MAIN LOOP MASKS The main loop masks have the following functions: • Provide a complete overview regarding the status of the unit. • Provide useful information to the unit maintenance operator. 2.4.1 List of the main loop masks  Main Mask ...
  • Page 17 TM_s-MEXT_ME28relC_00_12_19_EN Mask of the terminal Description ACTIVE FUNCTIONS Mask that displays the active functions of the unit Visible only when certain functions are active DELAY FOR TIME OBSERVATION 24.0 °C 15.0 °C Active probe value display mask • Return temperature probe •...
  • Page 18 TM_s-MEXT_ME28relC_00_12_19_EN Mask of the terminal Description 99.9 99.9 99.9 Mask that displays all the temperature values read by the units on the LAN network. This mask is displayed only at the Master unit (pLAN address=1). 99.9 99.9 99.9 Visible if the pLAN is configured 99.9 99.9 99.9 99.9LAN:Local Unit Temp.(°C)
  • Page 19 TM_s-MEXT_ME28relC_00_12_19_EN Mask of the terminal Description Energy Managment Network transducer active energy and hour counter display mask. Energy: 0000000kWh Visible if the network transducer is present and configured Time: 0000000 h Input/Output GSM modem GSM modem status display mask. Status: Visible if the GSM modem is present and configured Stand-by ext.modem Offline...
  • Page 20 TM_s-MEXT_ME28relC_00_12_19_EN Mask of the terminal Description PAC-IF013B-E Slave1 Slave 1 PAC-IF info mask: • Status Status: • Method Mode: COOLING • Communication Step: • Adjustment step Communication: Online PAC-IF013B-E Slave1 Slave 1 PAC-IF info mask: • Suction temperature probe (TH11) •...

  • Page 21: Active Function Display Mask

    TM_s-MEXT_ME28relC_00_12_19_EN Active function DISPLAY MASK. The mask that shows the active functions of the unit can be displayed in the Main Loop. INFORMATION The mask can be displayed only if one of the functions described below is active. The appearance of the mask is signalled on the main screen with the icon . It is shown below. Figure 2-8: Active function icon on the user terminal Press [DOWN] in the main display screen to display the active functions mask.
  • Page 22 TM_s-MEXT_ME28relC_00_12_19_EN Icon Function Meaning Safety Reduction Load LP Minimum override of at least one circuit is active due to reduced evaporation pressure SAFETY REDUCTION LOAD (LP) ACTIVATED Post-ventilation active The heater cooling post-ventilation is active POST-VENTILATION ACTIVATED One or more compressors are blocked to comply with the start-up times, or the unit is Delay for time obs.

  • Page 23: Safety Reduction Load (Lp) Display Mask

    TM_s-MEXT_ME28relC_00_12_19_EN SAFETY REDUCTION LOAD (LP) DISPLAY MASK Visible from: “Unit” menu ZONE 1 ZONE 2 ZONE 3 Figure 2-10: Safety Reduction Load mask representation Zone 1: Fan status Icon Meaning Normal fan operation Fan in Alert mode (Flashing): • With SRL (LP) active: The speed of the fans increases with 2 alert steps Zone 2: Status of the unit controlled by the PAC-IF interface Icon...

  • Page 24: Changing The Parameters

    TM_s-MEXT_ME28relC_00_12_19_EN CHANGING THE PARAMETERS 2.7.1 Access to parameter changing The settable parameters can be distinguished according to the modification access mode, into three groups: • Parameters that can be reached using the “User” menu with the “User” password. • Parameters that can be reached using the “Service” menu with the “Service” password. •...
  • Page 25 TM_s-MEXT_ME28relC_00_12_19_EN Mask of the terminal Description N. Par. Configuration of the external T probe on I/O pCO (N:disabled - Y:enabled) --------------- P10.20 Outdoor temperature probe: 10.20 Initial logo: Mitsubishi - RC --------------- P10.22 Brand: Mitsubishi - RC 10.22 Parameters for configuring the serial number of the unit ------------ P10.26-28 Unit serial number: 032000000...
  • Page 26 TM_s-MEXT_ME28relC_00_12_19_EN Mask of the terminal Description N. Par. Access mask to Compressors submenu. Press "Up" or "Down" to scroll the other masks and "Esc" to return to the submenu. Compressor   Parameters for setting --------------- P12.01 Minimum compressor ON time MIN time ON comp.: 180s Minimum compressor OFF time...
  • Page 27 TM_s-MEXT_ME28relC_00_12_19_EN Mask of the terminal Description N. Par. Mask confirming access to the Protections 2 submenu. Press "Up" or "Down" to scroll the other masks and "Esc" to return to the submenu. Safety 2   It informs that no parameters are available in the menu for the unit Safety 2 parameter NOT Available Access mask to initialisation menu.
  • Page 28 TM_s-MEXT_ME28relC_00_12_19_EN Mask of the terminal Description N. Par. Parameter for setting Integral adjustment time --------------- P20.06 Inv. compressor reg. intergral time: 900s 20.06 Parameter for setting the inverter compressor adjustment derivative time (units with inverter compressor) --------------- P20.07 Inv. compressor reg. derivative time: 000 s 20.07 Parameter for configuring the dirty filters sensor (N:disabled - Y:enabled)
  • Page 29 TM_s-MEXT_ME28relC_00_12_19_EN Mask of the terminal Description N. Par. Parameter for setting the Lower setpoint heating limit and the --------------- P20.26 Upper setpoint heating limit Heating set point lower limit: 12.0°C 20.26 Parameter for configuring the discharge air temperature limit (N:disabled - Y:enabled) --------------- P20.28 and parameter for setting the discharge air temperature limit Discharge air limit...
  • Page 30 TM_s-MEXT_ME28relC_00_12_19_EN Mask of the terminal Description N. Par. Parameter for configuring the presence of the auxiliary temperature / humidity probe (address 129) (0:disabled- --------------- P20.82 1:enabled) Aux TH sensor addr.129 status enable : 20.82 Mask confirming access to the Freecooling operation submenu. Press "Up" or "Down" to scroll the other masks and "Esc"...
  • Page 31 TM_s-MEXT_ME28relC_00_12_19_EN Mask of the terminal Description N. Par. Parameter for setting the humidity band to disable the Freecooling damper --------------- P21.17 %RH band to deact. freec. damper: 01.0%RH 21.17 Parameter for configuring Freecooling damper management with compressor alarm (N:disabled - Y:enabled) --------------- P21.18 Freecooling damper management during...
  • Page 32 TM_s-MEXT_ME28relC_00_12_19_EN Mask of the terminal Description N. Par. Parameters for setting --------------- P22.17 Step 1 heater operating hours for maintenance setpoint Set heat. 1 working h. to maintenance: 00000h Step 2 heater operating hours for maintenance setpoint --------------- P22.18 Set heat. 2 working h. to maintenance: 00000h 22.17 22.18...
  • Page 33 TM_s-MEXT_ME28relC_00_12_19_EN Mask of the terminal Description N. Par. Access mask to fan submenu. Press "Up" or "Down" to scroll the other masks and "Esc" to return to the submenu.   Parameter for setting the nominal speed of the internal fan --------------- P23.01 Fan nominal speed:...
  • Page 34 TM_s-MEXT_ME28relC_00_12_19_EN Mask of the terminal Description N. Par. Parameters used to set the Constant Flow pressure adjustment differential and the --------------- P23.66 Constant deltaP adjustment setpoint Const. flow rate diff: 025 Pa --------------- P23.67 Const. deltaP set: 0020 Pa 23.66 23.67 Parameters used to set the Minimum speed reduction of the fan, the Constant DeltaP and the --------------- P23.68...
  • Page 35 TM_s-MEXT_ME28relC_00_12_19_EN Mask of the terminal Description N. Par. Parameter for calibrating the auxiliary temperature / humidity probe --------------- P24.20 Aux address 129 temp. Only visible when the probe is present probe adjust: 0.0 °C --------------- P24.21 Aux address 129 humid. probe adjust: 00.0 % 24.20...
  • Page 36 TM_s-MEXT_ME28relC_00_12_19_EN Mask of the terminal Description N. Par. Parameter for configuring the number of units in stand-by in LAN (0 1 unit - 1 2 units) and for configuring the --------------- P26.05 Stand-by mode limits in LAN function (N:disabled - Y:enabled) Units in stand-by in LAN: --------------- P26.06...
  • Page 37 TM_s-MEXT_ME28relC_00_12_19_EN Mask of the terminal Description N. Par. Access mask to the Manual submenu. Press "Up" or "Down" to scroll the other masks and "Esc" to return to the submenu. This submenu contains the masks for the manual control of the unit. This menu is used to reset the energy meter Manual counts and reset the operating hours and the start counts of the various unit components ...
  • Page 38 TM_s-MEXT_ME28relC_00_12_19_EN Mask of the terminal Description N. Par. Network transducer configuration. Energy Managment Config CPT network: Y 0:NO ERROR 0:NO ERROR Baud rate change from 9600 to 19200 and sending of TA ratio and system type parameters. baud rate CPT OK CT Ratio OK System OK Programming OK (Esc) Display and possible reset of the energy counters and energy transducer timer...
  • Page 39 TM_s-MEXT_ME28relC_00_12_19_EN Mask of the terminal Description N. Par. Reset number of heater and humidifier starts and manual setting of the times at which to start Manual Set 000000 000002 000000 Mask for simulating the presence of the temperature/humidity probe and relative set temperature value Humidity/temperature simulation enabling: Y Ambient temperature...
  • Page 40 TM_s-MEXT_ME28relC_00_12_19_EN Mask of the terminal Description N. Par. Parameter for enabling the periodical drain function when the humidifier is in operation (N:disabled - Y:enabled) --------------- P27.16 Enable Humidif. Parameter for selecting the number of hours of continuous operation after which to perform the periodical drain Periodical Drain: function --------------- P27.17...
  • Page 41 TM_s-MEXT_ME28relC_00_12_19_EN Mask of the terminal Description N. Par. Parameters for setting ----------------P27.22 Offset start time (cooling) Minimum temp. for cool compensation: 00.0 °C Offset end time (cooling) ----------------P27.23 Maximum temp. for cool compensation: 10.0 °C 27.22 27.23 Parameter for setting the maximum setpoint offset (cooling) ----------------P27.24 Maximum cool setpoint compensation:...
  • Page 42 TM_s-MEXT_ME28relC_00_12_19_EN Mask of the terminal Description N. Par. Parameters for configuring the BMS address and --------------- P30.02 protocol (0:Standard - 1:Modbus - 2:GSM Modem - 3:LON - 4:Bacnet - 5:TCP/IP - 6:WinLoad) BMS Address: --------------- P30.03 BMS protocol config.: ModBus 30.02 30.03 BMS baud rate configuration parameter (0:1200 - 1:2400 - 2:4800 - 3:9600 - 4:19200)
  • Page 43 TM_s-MEXT_ME28relC_00_12_19_EN Mask of the terminal Description N. Par. Text SMS sending mask. GSM modem management Send SMS Test: Hang Up: Access mask to "Alarm out" submenu. Press "Up" or "Down" to scroll the other masks and "Esc" to return to the submenu.
  • Page 44 TM_s-MEXT_ME28relC_00_12_19_EN Mask of the terminal Description N. Par. Delivery air temperature probe alarm address on digital output (0:A - 1:none - 2:B) --------------- P31.14 (140) Air delivery temp. probe alarm out addressing: 31.14 External air temperature probe alarm addressing on digital output (0:A - 1:none - 2:B) --------------- P31.16 (144) Outdoor air temp probe alarm...
  • Page 45 TM_s-MEXT_ME28relC_00_12_19_EN Mask of the terminal Description N. Par. Humidifier low current alarm addressing on digital output (0:A - 1:none - 2:B) --------------- P31.45 (408) Humidifier low current alarm out addressing: A 31.45 Humidifier high current alarm addressing on digital output (0:A - 1:none - 2:B) --------------- P31.46 (410) Humidifier high current alarm...
  • Page 46 TM_s-MEXT_ME28relC_00_12_19_EN Mask of the terminal Description N. Par. Eeprom alarm addressing on digital output (0:A - 1:none - 2:B) --------------- P31.55 (601) EEPROM alarm out addressing:A Maintenance alarm addressing on digital output (0:A - 1:none - 2:B) --------------- P31.56 (610) Maintenance al out addressing:A 31.55 31.56...
  • Page 47 TM_s-MEXT_ME28relC_00_12_19_EN Mask of the terminal Description N. Par. Access mask to "Alarm out 2" submenu. Press "Up" or "Down" to scroll the other masks and "Esc" to return to the submenu. Alarm out   PAC-IF013B-E Master offline alarm addressing on digital output (0:A - 1:none - 2:B) --------------- P33.15 (188)Offline PAC-IF013B-E Master...
  • Page 48 TM_s-MEXT_ME28relC_00_12_19_EN Mask of the terminal Description N. Par. E2 PAC-IF013B-E Master alarm addressing on digital output (0:A - 1:none - 2:B) --------------- P33.23 (817)PAC-IF013B-E Master E2 alarm out addressing: 33.23 E3/E5 PAC-IF013B-E Master alarm addressing on digital output (0:A - 1:none - 2:B) --------------- P33.24 (818)PAC-IF013B-E Master E3/E5 alarm...
  • Page 49 TM_s-MEXT_ME28relC_00_12_19_EN Mask of the terminal Description N. Par. P1 PAC-IF013B-E Slave 1 alarm addressing on digital output (0:A - 1:none - 2:B) --------------- P33.32 (825)PAC-IF013B-E Slave 1 P1 alarm out addressing: 33.32 P2 PAC-IF013B-E Slave 1 alarm addressing on digital output (0:A - 1:none - 2:B) --------------- P33.33 (826)PAC-IF013B-E Slave 1 P2 alarm...
  • Page 50 TM_s-MEXT_ME28relC_00_12_19_EN Mask of the terminal Description N. Par. E6 PAC-IF013B-E Slave 1 alarm addressing on digital output (0:A - 1:none - 2:B) --------------- P33.41 (834)PAC-IF013B-E Slave 1 E6 alarm out addressing: 33.41 E7 PAC-IF013B-E Slave 1 alarm addressing on digital output (0:A - 1:none - 2:B) --------------- P33.42 (835)PAC-IF013B-E Slave 1 E7 alarm...
  • Page 51 TM_s-MEXT_ME28relC_00_12_19_EN Mask of the terminal Description N. Par. Access mask to Info menu. Press "Up" or "Down" to scroll through the other masks and "Esc" to return to the menu selection list. Submenu that can be used to change user password and display software info. Info ...
  • Page 52 TM_s-MEXT_ME28relC_00_12_19_EN Mask of the terminal Description N. Par. DIGITAL OUTPUT STATUS: Displays the status of the digital outputs. The number of outputs displayed depends on the type of unit. For the meaning of each digital output, please refer to the “input/output configuration tables” ANALOG INPUT STATUS: Displays the status of the universal inputs.
  • Page 53 TM_s-MEXT_ME28relC_00_12_19_EN Mask of the terminal Description N. Par. Parameters for setting --------------- P50.07 Dehumidification setpoint for LAN limits Set point dehumdif. by LAN limits: 75%RH Humidification setpoint for LAN limits --------------- P50.08 Set point humdif. by LAN limits: 35%RH 50.07 50.08 Parameter for setting the minimum room temperature for dehumidifier off --------------- P50.09...
  • Page 54 TM_s-MEXT_ME28relC_00_12_19_EN Mask of the terminal Description N. Par. Average Temp. Regulat. Display of the temperature sent by BMS. from BMS If the temperature sent is not correct, error is displayed instead of the temperature. 24.5°C If the BMS signal is lost, the words SIGNAL LOST flash instead of the word Online Status:Online Operating time of the fans and compressors in the various unit configurations h000000...
  • Page 55 TM_s-MEXT_ME28relC_00_12_19_EN Mask of the terminal Description N. Par. Clock config.: Current date and time setting. Date 01/05/13 10:40 Time bands Indicates that the time bands have been set correctly, though they are not enabled. To enable them, see user not enabled. menu.
  • Page 56 TM_s-MEXT_ME28relC_00_12_19_EN Mask of the terminal Description N. Par. Band 9A Off Setting of time bands A to D, ninth and tenth daily time band. In the example, the unit is set from 5.00 am to 10.00 901.49 Time 20:00 / 20:00 pm, and it remains off all other hours of the week.

  • Page 57: Parameter Table

    TM_s-MEXT_ME28relC_00_12_19_EN 2.7.3 Parameter Table The numbering of the parameters is divided by menu. • 1x corresponds to a submenu of the “Factory menu” • 2x corresponds to a submenu of the “Service menu” • 30 corresponds to a submenu of the “User” menu. •...
  • Page 58 TM_s-MEXT_ME28relC_00_12_19_EN N. Par. Description Default U.M. Min. Max. 20.10 Flooding sensor configuration [0: Disabled | 1: Enabled] 20.13 Remote ON/OFF contact configuration [0: Disabled | 1: Enabled] 20.18 Cold adjustment band °C 20.19 Hot adjustment band °C 20.20 Dehumidification adjustment band 20.21 Humidification adjustment band 20.22...
  • Page 59 TM_s-MEXT_ME28relC_00_12_19_EN N. Par. Description Default U.M. Min. Max. 22.92 Type of gas used by the unit (0:R410A - 1:R32) 22.01 Low temperature alarm setpoint °C 22.02 High temperature alarm setpoint °C 22.03 Low humidity alarm setpoint 22.04 High humidity alarm setpoint 22.13 Unit operating hours for maintenance setpoint (Thousands) 22.14...
  • Page 60 TM_s-MEXT_ME28relC_00_12_19_EN N. Par. Description Default U.M. Min. Max. 24.24 Humidity differential for the update of the reading of probe T+H 128 24.25 Temperature differential for the update of the reading of probe T+H 129 °C 24.26 Humidity differential for the update of the reading of probe T+H 129 26.01 Number of units in LAN 26.02...
  • Page 61 TM_s-MEXT_ME28relC_00_12_19_EN N. Par. Description Default U.M. Min. Max. 27.22 Offset start point (Cooling) °C -30.0 P 27.23 27.23 Offset end point (Cooling) 10.0 °C P 27.22 50.0 27.24 Maximum setpoint offset (Cooling) °C -30.0 50.0 27.25 Offset start point (Heating) °C -30.0 P 27.26...
  • Page 62 TM_s-MEXT_ME28relC_00_12_19_EN N. Par. Description Default U.M. Min. Max. 31.55 Eeprom alarm addressing on digital output [0: A | 1: None | 2: B] 31.56 Maintenance alarm addressing on digital output [0: A | 1: None | 2: B] 31.58 Dirty filters alarm addressing on digital output [0: A | 1: None | 2: B] 31.62 Circuit 1 frost-free protection alarm addressing on digital output [0: A | 1: None | 2: B] 31.67...
  • Page 63 TM_s-MEXT_ME28relC_00_12_19_EN N. Par. Description Default U.M. Min. Max. 33.44 PL PAC-IF013B-E Slave 1 alarm addressing on digital output (0:A - 1:none - 2:B) 33.45 PU PAC-IF013B-E Slave 1 alarm addressing on digital output (0:A - 1:none - 2:B) 33.46 EE PAC-IF013B-E Slave 1 alarm addressing on digital output (0:A - 1:none - 2:B) 33.47 Detected gas leak alarm addressing on digital output [0: A | 1: None | 2: B] 50.01...

  • Page 64: Events Masks

    TM_s-MEXT_ME28relC_00_12_19_EN EVENTS MASKS Press the [ALARM] key once to enter the “Alarm” menu and view the event messages along with their codes. If there is more than one event, scroll the menu using the [UP] and [DOWN] keys. Press any other button to exit this menu. In order to reset an event, press the [ALARM] key another time.
  • Page 65 TM_s-MEXT_ME28relC_00_12_19_EN Event Reset Code Display description Details Position Action Time Time No Alarm detected No event available. Fire/smoke detector engagement. Presence of SMOKE/FIRE Visible only if the detecting input is present. Engagement of the flooding sensor. Flood Alarm: check NO/U Water Connections Visible only if the detecting input is present.
  • Page 66 TM_s-MEXT_ME28relC_00_12_19_EN Event Reset Code Display description Details Position Action Time Time Low Pressure circuit 2 sensor Circuit 2 low pressure transducer fault alarm. Failed/Disconnected Frost Protection Circuit 1 frost-free function protection alarm. A->M Active circuit 1 Frost Protection Circuit 2 frost-free function protection alarm. A->M Active circuit 2 Humidifier cylinder expiry alarm.
  • Page 67 TM_s-MEXT_ME28relC_00_12_19_EN Event Reset Code Display description Details Position Action Time Time PAC-IF013B-E Master Two-phase temperature sensor faulty TH5 P9 Alarm (Master PAC-IF013B-E) PAC-IF013B-E Master Loss of communication between remote controller and E0/E4 Alarm Master PAC-IF013B-E Loss of communication between remote controller and PAC-IF013B-E Master E1 Alarm...

  • Page 68: Table Of Internal Humidifier Alarms With Cpy Control

    TM_s-MEXT_ME28relC_00_12_19_EN 2.8.2 Table of internal humidifier alarms with CPY control The internal humidifier alarms managed by the CPY control are transmitted by the CPY control to the EVOLUTION+ controller via the serial line. The CPY control alarm codes are grouped below for each alarm that is read by the controller. EVOLUTION+ CPY alarms Code...

  • Page 69: Starting The Unit

    TM_s-MEXT_ME28relC_00_12_19_EN STARTING THE UNIT SOFTWARE UPLOAD Upon initial installation the cards must be programmed by uploading the software inside the Flash memory. This operation can be performed only using the Service software. The computer communicates with the pCO board using a USB-RS485 converter. UNIT POWER SUPPLY ATTENTION Connect the unit to the power supply at least 8 hours before starting it;...

  • Page 70: Start Of Automatic Adjustment

    TM_s-MEXT_ME28relC_00_12_19_EN After enabling time bands from the “Enable time bands” parameter in the “Scheduler” menu, time bands can be set and different setpoints can be specified according to requirements. The following must be defined to ensure correct use of the time bands: The type of programming of the time bands: Standard: For setting a single programming category (A), with a maximum of 10 time bands, that can be assigned to each day of the week.

  • Page 71: Forced Ventilation Activation

    TM_s-MEXT_ME28relC_00_12_19_EN FORCED VENTILATION ACTIVATION When a unit is switched off using one of the procedures previously described, the shutdown command will be sent to the PAC-IF cards and ventilation will remain in operation until the Mr. Slim units are switched off. This transitional period will be notified by the ventilation and the compressor icons flashing at the same time. In case of s-MEXT unit blocking alarm, ventilation is immediately disabled and the external Mr Slim unit immediately stops.

  • Page 72: Notes On Temperature Adjustment

    TM_s-MEXT_ME28relC_00_12_19_EN NOTES ON TEMPERATURE ADJUSTMENT The heating and cooling devices are managed on the basis of the temperature values measured by the return or delivery probe depending on the parameter settings. This temperature is compared with the set value (setpoint), and based on the difference, the devices may activate. The proportional band selects the working area and may assume (as for the setpoints) different heating and cooling values.

  • Page 73: Return Setpoint Compensation

    TM_s-MEXT_ME28relC_00_12_19_EN RETURN SETPOINT COMPENSATION This function allows automatic air return setpoint variation within a preset range, based on a signal sent to the unit controller. The function monitors in real time the input value (temperature read by the remote T+H probe) and calculates the offset value based on the parameters. This value is then added to the return setpoint or subtracted from it, therefore becoming an “offset”...

  • Page 74: Cooling

    TM_s-MEXT_ME28relC_00_12_19_EN COOLING COMMUNICATION WITH THE MR SLIM UNIT During the management and control of Mr Slim units, it is necessary to use interface cards (PAC-IF013B-E), through which the s-MEXT unit will send commands and request information from the Mr. Slim units. There are 2 possible types of connections for the use of Mr Slim units, depending on the number of them being used with the s-MEXT unit.

  • Page 75: Cold Request Generation

    TM_s-MEXT_ME28relC_00_12_19_EN COLD REQUEST GENERATION The external unit control logic requires DIP temperature control. This logic operates as follows. ) (t    Setpoint ∑ Error ∑ Process Output Figure 5-3: PID control logic operation The control variable is the ambient or delivery temperature and the controlled variable is the adjustment ramp (define in values from 0 to 100%). The higher the ramp value, the higher the request sent to external units.

  • Page 76: Management Of Dehumidification

    TM_s-MEXT_ME28relC_00_12_19_EN Moreover, a minimum On time of 3 minutes before switching off will be ensured. In case of recalling of PAC-IF card step 0 (switch OFF), it will also be necessary to wait a minimum switch off time (maintaining of step 0). The activation of these time delays will be notified on PGD1 in the following way: •...

  • Page 77: Minimum Delivery Temperature Limit

    TM_s-MEXT_ME28relC_00_12_19_EN MINIMUM DELIVERY TEMPERATURE LIMIT 5.3.1 Objectives Setting a minimum limit to the delivery temperature may be a request justified by the presence, very close to the unit delivery outlet, of devices that are sensitive to relatively low temperatures. The delivery temperature can only fall excessively if there is a sudden decrease in the temperature of the cold coil (evaporation temperature or, more likely, the temperature of the chilled water coming from a chiller).

  • Page 78: Heating

    TM_s-MEXT_ME28relC_00_12_19_EN HEATING ON/OFF HEATING ELEMENT MANAGEMENT The parameter indicating the presence of on/off electric heaters is in the “Optional” menu, which can be accessed by entering the “Service” password The heating elements, when present, are given by two loads having different power; they are, therefore, always managed according to three heat steps, as shown below. Step 3 Step 2 Step 1...

  • Page 79: Dehumidify

    TM_s-MEXT_ME28relC_00_12_19_EN DEHUMIDIFY DEHUMIDIFICATION START-UP Activating dehumidification happens through an on/off logic according to the step reported in the following diagram. Dehumidify P50.03 ambient P20.20 Differential Figure 7-1: Dehumidification start-up graph The dehumidify setting parameter is under the “Set point” menu. The dehumidify differential parameter is under the “Regulations” menu, which can be accessed by entering the “Service”...

  • Page 80: Lower Limit

    TM_s-MEXT_ME28relC_00_12_19_EN Dehumidification is deactivated if room temperature exceeds the limit set out in the following formula: ���������� ���������� = �������� ������ [��50.01] + (�������� ������������������������ [��20.18] ∗ 2) The dehumidifier will restore normal operation when the room temperature value falls below the “Cool setting” parameter value. The Cooling Setting parameter is in the “Set point”menu.

  • Page 81: Low Dehumidification Temperature Limit

    TM_s-MEXT_ME28relC_00_12_19_EN 7.2.5 Low dehumidification temperature limit In case of a direct expansion unit, there is another limit above which, irrespective of whether there are any heating/post heating resources, the dehumidification function is immediately inhibited. This limit keeps the unit from operating under low evaporation conditions. The parameter for the definition of the low temperature limit can be found in the “Setpoint”...

  • Page 82: Dehumidification Setpoint Limit

    TM_s-MEXT_ME28relC_00_12_19_EN DEHUMIDIFICATION SETPOINT LIMIT Limits for the humidification and dehumidification setpoints are set on the controller to ensure correct operation of the humidification and dehumidification functions. In particular, the dehumidification setpoint should always be: Greater than or equal to the Humidification setpoint + 5% (fixed ready-only value). Greater than or equal to the minimum limit for the dehumidification setpoint.

  • Page 83: Vapour Production Regulation

    TM_s-MEXT_ME28relC_00_12_19_EN The immersed electrode humidifier produces vapour by heating cylinder water to ebullition. Vapour production regulation. Heat is obtained from the flow of electricity through the water in the cylinder. This procedure is performed by applying voltage to the electrodes (network) immersed in the water. Initially, when the cylinder is new or after it has been cleaned, the quantity of current almost exclusively depends in the type of supply water: the saltier the water, the more it conducts current, and the earlier it reaches the required steam production level.

  • Page 84: Maintenance Of The Integrated Dehumidifier

    TM_s-MEXT_ME28relC_00_12_19_EN The Alarms and Signals relative to humidifier operation are detailed in the controller alarms section. A crucial point of humidifier operation is excess current control. In fact, whenever voltage is applied to the boiler electrodes after a period of shutdown, short but very intense current peaks can be observed.

  • Page 85: Internal Air Fan Management

    TM_s-MEXT_ME28relC_00_12_19_EN INTERNAL AIR FAN MANAGEMENT 10.1 INTRODUCTION ATTENTION Pay attention to the fans. They are kept on at reduced speed when the power is connected, even if the unit is switched off from the terminal, and while the controller has not yet started, to ensure the dispersion of possible gas leaks. The unit is fitted with EC radial evaporating fans.

  • Page 86: Automatic Speed Regulation Function

    TM_s-MEXT_ME28relC_00_12_19_EN 10.5 AUTOMATIC SPEED REGULATION FUNCTION This function allows to automatically adjust EC radial fan speed. It may follow two logics: • Constant flow rate regulation. • Constant residual ∆P regulation. For these two logics, a differential pressure transducer is used and positioned so as to detect the pressure value used for regulation. 10.5.1 Constant flow rate regulation The pressure transducer detects the pressure difference on the fan outlet, as shown in the figure below:...

  • Page 87: Calibrating The Constant Flow Function

    TM_s-MEXT_ME28relC_00_12_19_EN When configuring the unit the project flow value and the number of fans in the unit are entered. The programme also requires that the fan flow is never less than the set rated flow. The parameters entry mask is under the “Fan” menu accessible through the “Service” password The purpose of regulation is to keep the flow rate constant when there is an increase in the loss of load, with reference to the graph below.
  • Page 88 TM_s-MEXT_ME28relC_00_12_19_EN Figure 10-6: Chart for positioning the pressure taps for the differential pressure sensor The controller adjusts following the chart below. INCREASE speed DECREASE speed AUMENTO Velocità NESSUNA Azione NO action DIMINUZIONE Velocità Differential pressure Pressione differenziale P23.67 Differential Differential Differenziale Differenziale P23.69...

  • Page 89: Operation Data Display

    TM_s-MEXT_ME28relC_00_12_19_EN The purpose of regulation is to keep the residual ∆P constant when there is an increase in the counter-pressure, with reference to the following graph. Figure 10-8: Constant head fan operation curve Starting from nominal work point (A), the increase in counter-pressure (due, for instance to a damper closing) causes a shift in the fan work point along the curve towards point B, with the ensuing increase in pressure.

  • Page 90: Damper Management

    TM_s-MEXT_ME28relC_00_12_19_EN DAMPER MANAGEMENT 11.1 DELIVERY DAMPER There is a delay before the fan is started, to allow for the delivery damper to open. This involves use of the auxiliary damper contact. As soon as the damper is almost completely open, the fan is cleared for start-up. For further details, please refer to the electrical diagrams.

  • Page 91: Temperature Adjustment In Units With Direct Freecooling

    TM_s-MEXT_ME28relC_00_12_19_EN 11.3 TEMPERATURE ADJUSTMENT IN UNITS WITH DIRECT FREECOOLING INFORMATION Parameter P21.21 is set as follows, depending on the type of unit: • P21.21 = 33% if the unit has two connected Mr Slim units. • P21.21 = 50% if the unit only has one connected Mr. Slim unit. The parameter can in any case be set using the “Freecooling”...

  • Page 92: Maximum Humidity Limit

    TM_s-MEXT_ME28relC_00_12_19_EN In the “Free Cooling” menu, accessible using the “Service” password, the operator can set the setpoint and the band for enabling Free Cooling. The FC and FC band parameter settings are under the “Free Cooling” menu, which can be accessed by entering the “Service” password. For the default values, see the parameters table.

  • Page 93: Pressure Protection And Control Functions

    TM_s-MEXT_ME28relC_00_12_19_EN PRESSURE PROTECTION AND CONTROL FUNCTIONS In Split Type units, the condensation pressure (HP) is controlled by the external condensing unit. However, there is the need to control and protect the unit from excessively low evaporation pressures (LP), and keep them within certain operating limits. For this, and to ensure the safety of the unit, several protection levels (functions) are available, outlined in the chart that follows.

  • Page 94: Safety Reduction Load (Lp) Function

    TM_s-MEXT_ME28relC_00_12_19_EN 12.2 SAFETY REDUCTION LOAD (LP) FUNCTION The main purpose of the function is to keep the low pressure at a parameter set value, should it decrease below a “setpoint value, to avoid the activation of the frost-free function at low temperatures, which would stop the unit due to the possibility of ice forming on the coil. The function activates if the pressure falls below the setpoint value (P20.86 for circuit 1 and P20.91 for circuit 2), and operates on two levels: A less incisive “Alert”...
  • Page 95 TM_s-MEXT_ME28relC_00_12_19_EN PAC-IF REQUEST MANAGEMENT PROTECTION CHECK PROTECTION RESTORE Protection not active. Protection still not active. PAC-IF : Req. REGULATION PAC-IF: Req. REGULATION REQUEST Protection still active. Protection still not active. Fan Protection DONE. The logic will restore the original request sent to the PAC-IF The logic will keep the PAC-IF request to the last value sent WAIT and wait a timer before going to (1) Normal Zone...

  • Page 96: Network Transducer

    TM_s-MEXT_ME28relC_00_12_19_EN NETWORK TRANSDUCER A Gavazzi model CPT-DIN.AV5.3.H.S1.AX network transducer is used to measure the main electrical variables. The converter is connected to the controller via the RS485 port (fieldbus2) using the Modbus protocol. the communication parameters are: ▪ Baud rate 19200 ▪...

  • Page 97: Alarm And Maintenance Management

    TM_s-MEXT_ME28relC_00_12_19_EN ALARM AND MAINTENANCE MANAGEMENT 15.1 ORIGIN OF ALARMS The alarms managed by the software fall into the following categories: • Alarms from external contacts: When the contact switches from closed to open, an alarm event is generated. • System alarms: Alarms coming directly from the control board diagnostics routine. •...

  • Page 98: Pac-If013B-E Alarms

    TM_s-MEXT_ME28relC_00_12_19_EN 15.3 PAC-IF013B-E ALARMS The PAC-IF013B-E card info dedicated masks show the alarm codes read by the card, if present, as represented below. Mask of the terminal PAC-IF013-E position PAC-IF013B-E MASTER Master Active step: Mode: COOLING Status:Online PAC-IF code: 5101 PAC-IF013B-E Slave1 Slave 1 Active step:...

  • Page 99: Event Notification Relay

    TM_s-MEXT_ME28relC_00_12_19_EN 15.5 EVENT NOTIFICATION RELAY The control board provides two relay outputs for event signalling. The “Alarm Out” menu, which can be accessed by entering the “User” password, it is possible to configure the outputs differently from the default setting. More specifically, these masks may: •...

  • Page 100: Events Mask

    TM_s-MEXT_ME28relC_00_12_19_EN A screenshot of the filter-setting mask for the Service level is shown below: Filter for alarm event Type: Alarm Location: Plant Once the filter to be applied has been selected, press the [ENTER] key to access the event mask. 15.6.4 Events mask Once the filter has been selected, as explained in the previous chapters, the operator may access the event history mask.

  • Page 101: Hardware

    TM_s-MEXT_ME28relC_00_12_19_EN HARDWARE The various pieces of hardware used for the software architecture are shown below Figure 16-1: Version "S" of the hardware Figure 16-2: Humidifier control board 16.1 DESCRIPTION OF THE LEDS A 7-segment display for viewing and setting the address of the board Power LED Overload LED...

  • Page 102: Input/Output Configuration Table

    TM_s-MEXT_ME28relC_00_12_19_EN INPUT/OUTPUT CONFIGURATION TABLE 17.1 MAIN CONTROLLER s-MEXT-G00 pCO size Small Fieldbus Connector Address Description Circuits Fieldbus 2 PAC-IF 013B-E Master Fieldbus 2 PAC-IF 013B-E Slave 1 Fieldbus 1 Gavazzi CPT network transducer Fieldbus 1 pCOe 1 expansion board Fieldbus 1 Room T+H probe Fieldbus 1 Remote T+H probe...

  • Page 103: Expansion No. 1 (Address 8)

    TM_s-MEXT_ME28relC_00_12_19_EN 17.2 EXPANSION NO. 1 (ADDRESS 8) s-MEXT-G00 Analogue Inputs Connector Type Description Air differential pressure transducer 4-20mA As an alternative: Delivery air temperature from 0-5V superv. Free External Air Temperature Free Free Digital Inputs Connector Type Description Internal electronic fan 1 alarm Internal electronic fan 2 alarm Free Free...

  • Page 104: Hardware Architecture

    TM_s-MEXT_ME28relC_00_12_19_EN HARDWARE ARCHITECTURE pLAN (Carel protocol) BMS2 (Modbus only for KIPlink) FieldBus 2 (Modbus Master 3.0 only for PAC-IF013B-E) ClimaPRO Climacenter ClimaGuard Modbus BMS1 (other protocol command from external BMS) FieldBus 1 (Modbus Master 2.0) Figure 18-1: Hardware architecture diagram TRANSLATION OF THE ORIGINAL INSTRUCTIONS Technical manual...

  • Page 105: Addressing The Modbus Communication Modules

    TM_s-MEXT_ME28relC_00_12_19_EN ADDRESSING THE MODBUS COMMUNICATION MODULES Each device connected to the controller via the Modbus protocol must have a univocal Modbus address. The addresses that must have the devices connected to the Modbus network are listed below, together with the methods for changing address with respect the one initially set by the supplier.

  • Page 106: Fieldbus 2

    TM_s-MEXT_ME28relC_00_12_19_EN 19.2 FIELDBUS 2 The following devices are connected to the FieldBus 2 port on the controller: Module Modbus address Method for changing address Master PAC-IF013B-E Dip switch Slave 1 PAC-IF013B-E Dip switch 19.2.1 Master PAC-IF013BE interface card communication configuration The configuration of the communication parameters for the Master PAC-IF013B-E interface card is completed using the Dip Switches of the electronic cards.

  • Page 107: Local Lan Network Management

    TM_s-MEXT_ME28relC_00_12_19_EN LOCAL LAN NETWORK MANAGEMENT 20.1 PURPOSE OF THE LOCAL LAN NETWORK Connecting the units to the LAN network (meaning the PCO boards mounted on each unit) allows the following functions to be performed: • Balancing the operating hours among the different units by rotating the reserve units (Stand-by). •...

  • Page 108: Network Configuration

    TM_s-MEXT_ME28relC_00_12_19_EN The user terminals are directly connected to the board. Each control board sends, in turn, the network variables to the other control boards in the LAN network. Moreover, each control board constantly sends display management data to its private user terminal and the shared one. As there is a fairly large quantity of display management data (especially if graphic symbols are present), one line is entirely reserved (the above-mentioned bus) to transmitting the variables, and at the most to managing the shared terminal, whilst setting private terminal management on direct connection lines (dedicated) between the user terminal and the relative control board, so as not to slow down the global transmission speed of the network.

  • Page 109: Address Setting The Control Board - From The User Terminal

    TM_s-MEXT_ME28relC_00_12_19_EN 20.2.5 Address setting the control board - from the user terminal Press and hold [UP]+[DOWN]+[ENTER] at the same time for at least 3 seconds to enter configuration mode. A mask is Display address displayed with the cursor flashing in the top left corner. Setting..: 21 I/O Board address: 01 Press [ENTER] once to modify the address of the terminal (display address setting).

  • Page 110: Settings On The User Terminal

    TM_s-MEXT_ME28relC_00_12_19_EN 20.3 SETTINGS ON THE USER TERMINAL In the case of units connected to a local LAN network, indicate the total number of connected units on the Master unit, then, if needed, enable the functions provided by the LAN, which are the following: •...

  • Page 111: Backup Activation Events

    TM_s-MEXT_ME28relC_00_12_19_EN 20.4.4 Backup activation events The alarms that activate the emergency unit are shown in the table below. Event Reset Code Display description Details Position Action Time Time Engagement of the flooding sensor. Flood Alarm: check NO/U Water Connections Visible only if the detecting input is present. Loss of Air Flow Lack of air flow on the evaporator.

  • Page 112: Management Of Two Backup Units

    TM_s-MEXT_ME28relC_00_12_19_EN 20.4.5 Management of two backup units In the presence of two reserve units, always turn on the one with the lower address, while the other reserve unit keeps rotating normally, excluding a unit in alarm, given that it may already be off or with limited performance. In case of a second alarm event stopping another LAN local network unit, the second back-up unit also activates and the time count for rotation is suspended.
  • Page 113 TM_s-MEXT_ME28relC_00_12_19_EN The chart below illustrates operation of the units in LAN with the standby function active. UNIT 4 UNIT 3 UNIT 5 Unit Status UNIT 2 U1 = On U2 = On U3 = On U4 = On U5 = STDBY StandBy units: 2 Stand-BY...

  • Page 114: Active Fan On Stand-By

    TM_s-MEXT_ME28relC_00_12_19_EN 20.5 ACTIVE FAN ON STAND-BY Adjustment is available only for units with stand-by management activated. The function allows the use of dynamic standby: during standby, reserve units do not keep the fan off, but keep it running at the speed set in parameter P26.17. When the Master decides to turn on the unit in AFS mode, it returns to adjustment mode and the unit that will go into stand-by stops, and it keeps the fan running at the speed set in parameter P26.17.

  • Page 115: Temperature And Humidity Average Management

    TM_s-MEXT_ME28relC_00_12_19_EN 20.6 TEMPERATURE AND HUMIDITY AVERAGE MANAGEMENT 20.6.1 Introduction When the units are connected to a LAN network, it is possible to leverage their connection to operate them according to the average humidity and temperature value of all active units (that is, with active ventilation) not in the alarm status. 20.6.2 Average calculation The Master unit (that is, the unit having LAN address = 1) calculates the average only if the regulation based on the average value has been enabled from the user terminal.

  • Page 116: H&L Local Temperature Protection

    TM_s-MEXT_ME28relC_00_12_19_EN 20.7 H&L LOCAL TEMPERATURE PROTECTION This function, available for all units connected to the LAN network (P26.01>0) and that adjust according to the average temperature (P26.02=Y), permits monitoring the formation of Hot and Cold Spots in a room controlled by various units on the LAN network. INFORMATION The function can be viewed only after enabling the LAN network and adjustment according to the average temperature.
  • Page 117 TM_s-MEXT_ME28relC_00_12_19_EN The diagram below illustrates the function described above. • Setpoint: 23.0°C • Band : 2.0°C LAN Status 24.0°C 24.0°C UNIT T.LOCAL T.MEDIA DELTA DELTA T.REG. 24.0°C 24.0°C HOTSPOT COLDSPOT UNIT 3 UNIT 4 MA S TER MA S TER 24.0°C 24.0°C UNIT 2...

  • Page 118: Lan Alarm Management

    TM_s-MEXT_ME28relC_00_12_19_EN 20.8 LAN ALARM MANAGEMENT 20.8.1 Preliminary considerations The network may be disconnected because of one of the following instances: • Fault in the LAN board of the controller (integrated into the board: in this case the entire board must be replaced). •...
  • Page 119 TM_s-MEXT_ME28relC_00_12_19_EN Example 3 • Situation: Unit 8 disconnected from all the others. • Units signalling the LAN disconnected alarm: 7 and 8 (if powered and working). Example 4 • Situation: Network split into two sections. • Units signalling the LAN disconnected alarm: 3 and 4. Example 5 •...

  • Page 120: Consequences Of The Alarm

    TM_s-MEXT_ME28relC_00_12_19_EN 20.8.4 Consequences of the alarm When a unit detects a disconnection on the local LAN network, the following occurs: • Signal on the main mask. • Forced unit activation in case it is in stand-by. • Average regulation inhibited, in case it has been previously enabled. •...

  • Page 121: Shared User Terminal

    TM_s-MEXT_ME28relC_00_12_19_EN 20.10 SHARED USER TERMINAL The shared user terminal (address 32) is managed by the application as follows: • Usually, it displays the information regarding the unit selected by the user by pressing [ESC] and [ALARM] simultaneously. Whenever this is done the terminal switches onto the upper unit address.

  • Page 122: Remote Keyboard Up To 200 Metres

    TM_s-MEXT_ME28relC_00_12_19_EN 20.10.3 Remote keyboard up to 200 metres To connect a remote keyboard two “T” shunt boards must be used, one near the controller and one near the remote keyboard. In case of a remote keyboard monitoring a single unit for a distance of less than 200 metres, the correct configuration is as follows. 6x1 mm shielded and twisted...

  • Page 123: Annexes

    TM_s-MEXT_ME28relC_00_12_19_EN ANNEXES 21.1 PID ADJUSTER CONTROL PARAMETERS The EVOLUTION+ software is equipped with some PID adjusters for controlling: • Cold request • Humidifier The graph below shows the operating logic of a PID control: ) (t    Setpoint ∑...

  • Page 124: Derivative Action

    TM_s-MEXT_ME28relC_00_12_19_EN Parameter Constant Promptness of Overshoot Balancing time Error at full power Stability (Decreases) (Increases) response Increases Increases Increases Cancels out Worsens The integral action can be disabled by setting the integral time to 0. 21.1.3 Derivative Action The derivative action sets a control action based on the prediction of what will happen in the future. The value of this action is proportional to the error trend (increase or decrease).

  • Page 125: Definition Of The Humidifier's Configuration Parameter

    TM_s-MEXT_ME28relC_00_12_19_EN 21.2 DEFINITION OF THE HUMIDIFIER'S CONFIGURATION PARAMETER Below is the conversion table for the value of the parameter P27.06 and the configured type of cylinder. Value P27.06 Definition Value P27.06 Definition 035-8 kg/h 575V 3-ph Drain Pump <Select the Model> 036-9 kg/h 208V 1-ph Drain Pump 001-1 kg/h Reduct 200V 1-ph Drain Pump 037-9 kg/h 230V 1-ph Drain Pump...
  • Page 126 TM_s-MEXT_ME28relC_00_12_19_EN Value P27.06 Definition Value P27.06 Definition 070-1 kg/h Reduct 1-ph Drain Valve 096-5 kg/h 575V 3-ph Drain Valve 071-1 kg/h 200V 1-ph Drain Valve 097-8 kg/h 200V 3-ph Drain Valve 072-1 kg/h 208V 1-ph Drain Valve 098-8 kg/h 208V 3-ph Drain Valve 073-1 kg/h 230V 1-ph Drain Valve 099-8 kg/h 230V 3-ph Drain Valve 074-3 kg/h Reduct 200V 1-ph Drain Valve...
  • Page 127 TM_s-MEXT_ME28relC_00_12_19_EN TRANSLATION OF THE ORIGINAL INSTRUCTIONS Technical manual...

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