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Carel MPXone User Manual
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Carel MPXone User Manual

Electronic controller for refrigeration applications
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USER MANUAL
MPXone
Electronic controller for refrigeration applications
MPXone
+0300086EN - ENG
Up to date version available on
www.carel.com
ENG
NO POWER
& SIGNAL
CABLES
TOGETHER
READ CAREFULLY IN THE TEXT!

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Summary of Contents for Carel MPXone

  • Page 1 MPXone Electronic controller for refrigeration applications USER MANUAL NO POWER & SIGNAL CABLES TOGETHER READ CAREFULLY IN THE TEXT! MPXone +0300086EN - ENG Up to date version available on www.carel.com...
  • Page 3 fications shown in the manual may be changed without prior warning. Notice: to focus attention on important topics; in particular the practical The liability of CAREL in relation to its products is specified in the CAR- application of the various product functions.
  • Page 4 Carel recommends users to follow, for example, the indications of the European standard “Temperature recorders and thermometers for the transport, storage...
  • Page 5 5.8 Generic functions ..................75 6. Parameter table ............79 6.1 System ........................79 6.2 Configuring the MPXone controller via the APPLICA app ... 88 7. Technical specifications ......... 90 7.1 Connector/cable table ................91 8. Alarms and signals ..........92 8.1 End defrost in advance signal and service warning ....
  • Page 7 Functions and main features MPXone, which shares many of the features already available on the MPXPRO range of controllers, has been designed to offer maximum flexibility thanks to modular hardware. Compared to the Basic version, the Medium version: •...
  • Page 8 (see “User interface”). Connectivity - NFC or NFC + Bluetooth (BLE) based on the model - allows interaction with mobile devices and simplifi es unit commissioning (after having installed the CAREL “Applica” APP for the Android/IOS operating systems).
  • Page 9 1.2.3 Temperature sensors If using an external valve driver (EVDice/mini) or on the MPXone Advanced version, a temperature probe for calculating the superheat needs to be installed near the evaporator outlet. Suitable thermal insulation of the probes is recommended. CAREL...
  • Page 10 (*)( 0/1): single/multiple pack (10 pcs.) 1.2.8 Unipolar electronic valve The MPXone Advanced version can provide integrated management of one electronic expansion valve (CAREL unipolar). The “Z” series of valves is recommended for use with MPXone Advanced. These in fact guarantee: •...
  • Page 11 Notice: the unipolar electronic valve must be sized according to the type of refrigerant used, the operating point and the maximum operating pressure differential (MOPD). For correct sizing, see the official CPQ tool (https://cpq.carel.com). The following specifications must therefore be complied with if using a unipolar valve with MPXone Advanced: 1. For HFC/HFO refrigerants: Maximum size E3V45 with MOPD = 35 bars (507 PSI) (1).
  • Page 12 1. Place the controller in the opening, pressing lightly on the side an- choring tabs. 2. Then press on the front until fully inserted (the side tabs will bend, and the catches will attach the controller to the panel). Fig. 2.c mpxone +0300086EN rel. 2.2 - 13.11.2023 Installation...
  • Page 13 66.2 (2.61) 70.4 (2.77) Fig. 2.e 2.3.2 Removal Use a screwdriver as a lever in the hole to lift and release the tab. The tab is held in the locked position by return springs. mpxone +0300086EN rel. 2.2 - 13.11.2023 Installation...
  • Page 14 Analogue input 8 green remote display power supply grey Analogue input 7 yellow Digital input 4 pink Power supply for Ultracap/backup module blue CAREL E*V unipolar valve Analogue input 4 Tab. 2.a mpxone +0300086EN rel. 2.2 - 13.11.2023 Installation...
  • Page 15 Superheated gas probe (tGS) Air off temp. probe (Sm) Air on temp. probe (Sr) Fig. 2.j Fig. 2.k Advanced only ratiometric 4...20mA Saturated evap. press/temp. probe (PEu/tEu) S6 +V 300086_047_R01 0...10Vdc Fig. 2.l Fig. 2.m mpxone +0300086EN rel. 2.2 - 13.11.2023 Installation...
  • Page 16 (*): connection to external ExV driver only for medium models ExV driver Main up to 9 secondary for Medium and Advanced models, up to 5 secondary only for Basic model Remote display Secondary 1 Secondary 2 J5 FBus shield shield Fig. 2.n mpxone +0300086EN rel. 2.2 - 13.11.2023 Installation...
  • Page 17 2.6.2 DIN rail Advanced model EXV valve 115-230 VAC 50/60 Hz Supervisor/BMS Remote display Secondary 2 Secondary 1 ...up to 9 secondary Fig. 2.o Fig. 2.p mpxone +0300086EN rel. 2.2 - 13.11.2023 Installation...
  • Page 18 Main Secondary 1 Secondary 2 G0 G G0 G G0 G shield shield shield up to 9 secondary for Medium and Advanced models, up to 5 secondary only for Basic model Fig. 2.q mpxone +0300086EN rel. 2.2 - 13.11.2023 Installation...
  • Page 19 2.10 Functional diagrams MPXone can control multiple refrigeration units (for example, one or more multiplexed showcases). These systems are made up of stand-alone controllers, or controllers that are connected to each other in a main/secondary arrangement in which each main controller can manage up to nine secondary controllers.
  • Page 20 DIN (Medium) Main mini User terminal J5 J4 up to 9 secondary Remote display Secondary 1 Secondary 2 for Medium and Advanced models, up to 5 secondary only for Basic model Fig. 2.v mpxone +0300086EN rel. 2.2 - 13.11.2023 Installation...
  • Page 21 RS485 supervisor network Notice: on the main controller, parameter H3 must be set based on the protocol used by the supervisory system (Modbus/ Carel). On the secondary devices, parameter H3 should always be left at the default value (1=Modbus). Main 1...
  • Page 22 2.14 Setting the default parameters/loading the parameter sets Two different sets of parameters are saved in the MPXone memory. These default sets can never be overwritten, being stored in a non-modifiable memory area. When resetting the system using the configuration wizard, one of the two configurations can be selected.
  • Page 23 Procedure for setting the default parameters/loading the parameter set Set 0, called the working set, contains the set of parameters used by MPXone during normal operation. This set is loaded when- ever MPXone is started, and the parameters can be modified at any time from the terminal, supervisor, APPLICA app and con- figuration software.
  • Page 24 Notice: • the user terminal can only be used to set the frequent parameters and display the value of the probes connected to MPXone. The Service- and Manufacturer-level parameters are set using the “Applica” app or the confi guration software, depending on the access profi...
  • Page 25 Display on user terminal 0 = Terminal disabled 1 to 6 = Probe 1 to 6 7 to 8 = Probes 7, 8 (MPXone Advanced only) 9 = Control probe 10 = Virtual probe 11 to 14 = Serial probe 1 to 4...
  • Page 26 HS0, HS1, HS2, HS3, HS5, HS6, HS7, HS8, HS9 - LOGS FAN - F0, F1, F2, F3 FANS EVD - P1, P3, P7, PH EV Driver CnF - H0, H2, H1, H3, In, Sn, r7, /5 CONFIGURATION mpxone +0300086EN rel. 2.2 - 13.11.2023 User interface...
  • Page 27 PRG to return to the pa- steps 5 to 9 to set the other param- egories press ESC and then PRG; or rameter categories eters b) press PRG for 3 s mpxone +0300086EN rel. 2.2 - 13.11.2023 User interface...
  • Page 28 LHt (Light), the UP and DOWN UP or DOWN to select a diff erent buttons will light up. function. 4. Select Esc to exit 5. The standard display is shown mpxone +0300086EN rel. 2.2 - 13.11.2023 User interface...
  • Page 29 4.1.1 User terminal When fi rst started, MPXone runs a procedure (confi guration wizard) that requires the settings of the critical parameters, relating • correct confi guration of the probe types;...
  • Page 30 Commissioning tool Fig. 4.b 1. Connect the PC to connector J4 (BMS) via a USB/RS485 converter (P/N CVSTDUMOR0); Fig. 4.c 2. After starting the software, open the project file provided by Carel; Fig. 4.d mpxone +0300086EN rel. 2.2 - 13.11.2023 Commissioning...
  • Page 31 * = up to 9 secondary devices for the Medium and Advanced models, limited to 5 for the Basic model H0: Serial or main/secondary network address On a main controller, this represents the address of the controller in the CAREL or Modbus supervisor network. The address of secondary controllers must comply with the following rule (see the example):...
  • Page 32 H0: 113 300086_024_R01 Fig. 4.g Notice: MPXone is compatible with Carel and Modbus® supervisor networks. The type of protocol is set via parameter H3, only on main controllers. H3: BMS serial protocol MPXone is compatible with supervision networks based on Carel and Modbus protocol, the selection is made using the H3 Parameter.
  • Page 33 0 = not used/thermostatic valve 1 = CAREL unipolar E2V (MPXone Advanced) 2 = CAREL E2V driver and valve (superheat probes connected to the controller) 3, 4, 5 = reserved 6 = CAREL E2V driver and valve (superheat probes connected to the driver) 7 = PWM valve (0-10 V) (*): for MPXone Advanced the default value is P1=1.
  • Page 34 /FE: Assign PEu/tEu (saturated evaporation pressure/temperature probe) This is used to assign the measurement of the saturated evaporation pressure/temperature to the selected probe. It is recom- mended to connect the 0.5-4.5 Vdc ratiometric probe (CAREL standard ratiometric) to input S6. Code Description...
  • Page 35 For details on the parameters and the related access levels, see the “Parameter table”. Inputs and outputs The MPXone Advanced version features up to 8 analogue inputs and 5 digital inputs. See the description of the terminals in “Description of the terminals”.
  • Page 36 The default configuration also involves these three probes being standard CAREL NTC. However, other types of probes can be connected by setting parameter /P1. On MPXone the default settings can be changed to choose the function associated with any of the probes connected. There are also cases where the characteristics of the applications require different settings.
  • Page 37 Activation: to activate sharing of the control status, set /FA = 0 and /Fc = 0 on the MPXone secondary controllers. Notice: • the configuration /FA = 0 and /Fc = 0 on a main controller causes the alarm ‘rE’ (control probe alarm) •...
  • Page 38 5.1.2 Digital inputs MPXone manages up to 5 physical digital inputs and 1 virtual digital input. See “Installation”. To associate a physical or virtual input to each available function, set parameters DIA, DIb, ... DIr to the value relating to the phys- ical or virtual digital input.
  • Page 39 fl ashes, the buzzer and the alarm relay are activated, and the temperature alarms with threshold AH/AHA (threshold relative to set point/absolute) are enabled with delay Ad+Add. Fig. 5.c mpxone +0300086EN rel. 2.2 - 13.11.2023 Functions...
  • Page 40 • as it is possible to configure an output as a replica of the “Timer” variable, following a transition of the variable, all of the out- puts will switch simultaneously. Code Description User User terminal Timer duration (timed input) 0 = function disabled Assign timed digital output - see DOA mpxone +0300086EN rel. 2.2 - 13.11.2023 Functions...
  • Page 41 If DIV is activated, the superheat set point switches to the value of P3A and the alarm threshold value to P7d. Code Description User User terminal Assign digital input to enable alternative superheat set point Alternative superheat set point Alternative low superheat alarm thresholds mpxone +0300086EN rel. 2.2 - 13.11.2023 Functions...
  • Page 42 Assign modulating compressor analogue output 5.1.4 Digital outputs MPXone has 4 digital outputs: NO1, NO2, NO3, NO4. To associate the digital outputs with the available functions, set parameters DOA, DOb, ... DOq to the value of the physical digital output. See the parameter table.
  • Page 43 Fig. 5.d Notice: this function is not compatible with management of the electronic expansion valve. MPXone can manage defrosts with one or two outputs and one or two end defrost probes. The table below summarises the possible cases: mpxone +0300086EN rel. 2.2 - 13.11.2023...
  • Page 44 DOQ Assign anti-sweat heater digital output - see DOA Generic On/Off stage function (par. DOS) elect digital output for configuring an ON/OFF function. Code Description User User terminal Assign digital output for stage ON/OFF function – see DOA mpxone +0300086EN rel. 2.2 - 13.11.2023 Functions...
  • Page 45 Notice for HACCP: the set point and diff erential are critical parameters for food storage. Modifi cations to these settings may be prohibited by HACCP procedures or require record keeping and authorisation. Ref. Description Set point Diff erential Sreg Sreg Control probe Control request Fig. 5.f mpxone +0300086EN rel. 2.2 - 13.11.2023 Functions...
  • Page 46 Normally the weight of /4 is set to 50% and the value of the virtual probe can be chosen for both display and temperature recording. The weighted average of the outlet and intake probes is used to compensate for the mixing of air from outside the showcase. mpxone +0300086EN rel. 2.2 - 13.11.2023 Functions...
  • Page 47 MOP: close solenoid valve 0/1 = No/Yes Main mini Main advanced Secondary mini Secondary advanced Fig. 5.i Ref. Description Ref. Description Forced-air evaporator Evaporation pressure (PEu) Solenoid valve Superheated gas temperature (tGS) Electronic expansion valve mpxone +0300086EN rel. 2.2 - 13.11.2023 Functions...
  • Page 48 Below is an example of the temperature trend on a vertical showcase during the day and at night. night -12...-14 °C Ref. Description -15...-17 °C -16 °C outlet probe Sv=(Sm+Sr)/2 intake probe -19...-21 °C temperature -22 °C -21...-23 °C Virtual probe time Fig. 5.l mpxone +0300086EN rel. 2.2 - 13.11.2023 Functions...
  • Page 49 °C/°F MPXone in standard mode uses the virtual probe Sv for control, that is, the weighted average of the outlet and intake probe (see parameter /4). If one of the two probes making up the virtual probe is broken or has an error, parameter ro is used to con- tinue normal control in controlled conditions, without the need for immediate intervention by maintenance personnel.
  • Page 50 In the event of a temperature probe error, MPXone uses the other probe available and adjusts the set point according to the setting of parameter ro. In the event of errors on both probes, MPXone switches to a special mode called “duty setting”.
  • Page 51 0/1 = normal/power defrost MPXone can manage different types of defrosts, depending on the setting of parameter d0. The defrost can end by temperature, in which case the defrost probe Sd must be installed, or by time. In the former case, the defrost ends when the defrost probe Sd reading exceeds the end defrost value dt1 or the time dP1 has elapsed, in the latter case when the maximum time dP1 is reached.
  • Page 52 End defrost in advance due to high temperature MPXone can terminate a defrost in advance if the value read by a configurable probe exceeds a certain maximum value. This is especially useful in cases where the defrost probe has not been positioned correctly, thus preventing, above all for heater de- frosts, the temperature inside the cabinet or cold room from reaching an excessively high value.
  • Page 53 2 to 100: opening percentage 5.3.2 Hot gas defrost (d0 = 1, 3): duty cycle MPXone can manage defrosts by installing a hot gas injection solenoid valve. This type of defrost can be controlled in two ways: • Hot gas by temperature (d0=1);...
  • Page 54 Calling Defrost Defrost Running Check end Dripping Post Dripping Regulation Defrost Status (dFS) Hot gas dHG/2 dHG/2 valve position Liquid pump down valve CLOSED status OPEN Compressor Request (vSr) Evaporator Status (FOI) Fig. 5.s mpxone +0300086EN rel. 2.2 - 13.11.2023 Functions...
  • Page 55 • if event td1 includes a series of days, the programming always ends at 24.00 on the last day. If event td1 includes one day only, the programming ends at 24.00 on the same day; • if both td1 and td2 are set, when the defrost events overlap, only the sequence of defrosts that start first are performed.. mpxone +0300086EN rel. 2.2 - 13.11.2023 Functions...
  • Page 56 Code Description User User terminal Defrost at power on (main = network defrost; secondary = local defrost) 0 = No, 1 = Yes mpxone +0300086EN rel. 2.2 - 13.11.2023 Functions...
  • Page 57 End defrost temperature (read by Sd2) °C/°F Defrost time in running time mode 0 = function disabled Defrost temperature threshold in running time mode °C/°F Ref. Description Defrost probe Defrost time Fig. 5.u mpxone +0300086EN rel. 2.2 - 13.11.2023 Functions...
  • Page 58 Compressor off time in sequential stop defrost mode 0 = function disabled Compressor operating time in sequential stop defrost mode OFFTIME=0 regulation regulation ONTIME=0 regulation defrost regulation Ref. Description Compressor time Fig. 5.w mpxone +0300086EN rel. 2.2 - 13.11.2023 Functions...
  • Page 59 Defrost 1 to 8 - enable power defrost: 0 = normal, 1 = power defrost Notice: in power defrost mode, the maximum defrost durations dP1 and dP2 are increased by the value of parameter ddP. mpxone +0300086EN rel. 2.2 - 13.11.2023 Functions...
  • Page 60 The evaporator fans can be managed, if required, according to the temperature measured by any two of the probes connected to the MPXone controller. The deactivation threshold is equal to the value of parameter F1, and the hysteresis is equal to the value of Frd.
  • Page 61 Variable-speed fans (EC fans) MPXone can control variable-speed fans, providing a 0-10 Vdc proportional signal on output Y1 or Y2. In this case, the fans need to be powered by the mains, while the control signal may come via output Y1 or Y2, set as 0-10 Vdc.
  • Page 62 5.4.2 Condenser fans MPXone allows integrated management of the condenser fans. The condenser fans can be fixed speed (On/Off ) or variable speed (modulating 0-10 V). Fixed speed fan connection DEFR EVAP COMP COND 24V AC/DC SELV CLASS 2 Fig. 5.ac...
  • Page 63 The control of anti-sweat heaters is performed by comparing the dew point calculated based on the ambient temperature and humidity, and the temperature of the showcase glass, measured by a probe or estimated using the showcase outlet, intake and ambient temperature. MPXone features two types of anti-sweat heater control: • PI (proportional, integral);...
  • Page 64 When starting for the first time and these variables have not yet been initialised, it is normal for alarms to be shown temporarily relating to probes that have not been updated mpxone +0300086EN rel. 2.2 - 13.11.2023 Functions...
  • Page 65 • probes (tGs, Peu/tEu) connected to the controller (P1=2): the external driver digital input should not be connected to the MPXone solenoid/compressor relay. In this way, the valve can move to the safety position (closed) even when there is no communication between controller and driver.
  • Page 66 ID for the gas and the CRC protection value. The coefficients are provided by CAREL. Once the new refrigerant has been entered, it will be available by setting parameter PH to 0. The value 0 can only be applied if the cyclic redundancy check (CRC) does not detect errors.
  • Page 67 Evaporation pressure MPXone, with PID control, tends to maintain the actual superheat, calculated based on the probe readings, around the value set for this parameter. This is done by gradually varying the opening of the valve based on the diff erence between the actual superheat and the set point.
  • Page 68 Notice: if the smooth lines function is activated on MPX controllers, the floating suction supervisor plug-in must be appropri- ately configured, considering this function as active. Smooth Lines will be disabled if the regulation probe breaks. mpxone +0300086EN rel. 2.2 - 13.11.2023 Functions...
  • Page 69 An SSR can be used to control electrical loads: to activate a single load when energised via an ON/OFF signal. The example below refers to an SSR: MPXone ON/OFF Fig. 5.al mpxone +0300086EN rel. 2.2 - 13.11.2023 Functions...
  • Page 70 (parameter P10). Caution: when P1 = 6 (MPXone Medium and external driver), the LSH alarm times are managed directly by the external driver and cannot be modified on the controller (300 s fixed delay).
  • Page 71 User User terminal Enable close solenoid valve for low superheat (LowSH) and/or low suction temperature (LSA) 1 = closing enabled LSA: low suction temperature threshold °C/°F LSA: alarm delay 0 = alarm disabled mpxone +0300086EN rel. 2.2 - 13.11.2023 Functions...
  • Page 72 PL2 = 0 ==> LOP protection and alarm disabled PL3 represents the alarm activation delay after exceeding the LOP threshold. When the alarm is activated, the following occur: • Message ‘LOP’ shown on the display; • Buzzer activated mpxone +0300086EN rel. 2.2 - 13.11.2023 Functions...
  • Page 73 System malfunctions may cause this value to be different from the effective position of the valve. SH: status variable that only displays the superheat value calculated by MPXone and used to control of valve. PPu: status variable that only displays the electronic valve opening as a percentage.
  • Page 74 5.7.1 VCC compressor Variable-capacity compressor (VCC) MPXone, in the Medium (*) and Advanced versions, can calculate the optimal speed of variable-speed compressors based on the value read by the control probe. The value is sent to the compressor inverter as a frequency-modulated signal.
  • Page 75 RPM (motor)/Freq (control) conversion factor Notice: see the compressor user manual to correctly set the VCC parameters. VCC compressor control MPXone uses a PID algorithm to calculate the compressor speed; the default parameters are such as to guarantee compressor safety. Code Description VCC compressor off...
  • Page 76 0 = disabled 1 = NO1 2 = NO2 3 = NO3 4 = NO4 Generic On/Off function: logic 0 = Direct, 1 = Reverse Ref. Description Set point Diff Differential Sreg1 - Control probe 1 Sreg2 Control probe 2 Digital output Fig. 5.at Fig. 5.au mpxone +0300086EN rel. 2.2 - 13.11.2023 Functions...
  • Page 77 Generic alarm function: time period to monitor semi-automatic alarm reset GFA_De General alarm function: delay GFA_D Generic alarm function: differential 99.9 GFA_Hth Generic alarm function: high temperature threshold GFA_Lth General alarm function: low temperature threshold mpxone +0300086EN rel. 2.2 - 13.11.2023 Functions...
  • Page 78 3 = switch off lights GFA_WDe Generic alarm function: warning activation delay 30000 s GFA_WD Generic alarm function: warning reset diff erential 99.9 GFA_WHth General alarm function: high warning threshold GFA_WLth General alarm function: low warning threshold mpxone +0300086EN rel. 2.2 - 13.11.2023 Functions...
  • Page 79 Manufacturer (M). The default passwords to access the Service and Manufacturer parameters from the APPLICA MPXone app are 22 and 44 respec- tively. The Manufacturer level password also allows access to the Service parameters, and the level S password also allows access to the User parameters.
  • Page 80 Minimum value for auxiliary pressure probe 1 (SPaux1) Maximum value for ambient humidity probe (SU) Minimum value for ambient humidity probe (SU) Analogue probe measurement stability Tab. 6.a Notice: (*) MPXone Advanced model only. Code Description User User terminal Digital inputs...
  • Page 81 0 = virtual probe Sv, 1 = intake probe Sr Control offset with probe error °C/°F Main solenoid valve configuration 0 = local valve, 1 = network valve (connected to main) Set point °C/°F mpxone +0300086EN rel. 2.2 - 13.11.2023 Parameter table...
  • Page 82 Defrost temperature threshold in running time mode °C/°F Pressure probe alarm management during defrost probe error supervisor update disabled enabled enabled enabled disabled disabled enabled disabled Pump down duration 0 = pump down disabled mpxone +0300086EN rel. 2.2 - 13.11.2023 Parameter table...
  • Page 83 Condenser fan activation differential °C/°F Max evaporator fan speed Min evaporator fan speed Evaporator fan peak time 0 = Function disabled Evaporator fan time forced at max speed 0 = Function disabled mpxone +0300086EN rel. 2.2 - 13.11.2023 Parameter table...
  • Page 84 Electronic valve type 0 = not used/thermostatic valve 1 = Reserved 2 = CAREL E2V valve (superheat probes connected to the controller) 3, 4, 5 = reserved 6 = CAREL E2V valve (superheat probes connected to the driver) 7 = PWM valve (0-10 V)
  • Page 85 Configure solenoid/compressor control during external alarm (im- mediate or delayed) with fixed 15 min OFF time 0 = always ON 100 = always ON Delay time for delayed external alarm 0 = Signal-only alarm mpxone +0300086EN rel. 2.2 - 13.11.2023 Parameter table...
  • Page 86 9600 57600 2400 19200 115200 4800 38400 BMS port serial protocol 0 = Carel, 1 = Modbus Fieldbus Number of secondary devices in the local network 0 = no secondary 0 Serial port baud rate (bit/s) 1200 9600 57600 2400...
  • Page 87 Generic alarm function: control probe 1 - see GFS_1 GFA_2 Generic alarm function: control probe 2 - see GFS_1 GFA_De General alarm function: delay GFA_ Generic alarm function: type AlType 0 = Warning, 1 = Serious mpxone +0300086EN rel. 2.2 - 13.11.2023 Parameter table...
  • Page 88 (access the packet manager section of APPLICA). Applica makes it easy to set the parameters on the MPXone controller and manage parameter confi gurations using the ham- burger menu at the top left of the screen.
  • Page 89 6. After having created and selected the chosen configuration, select “Copy values to configuration”. 7. The “Configuration value” column will now be populated with the current values on the MPXone controller. The values can now be modified to create a custom configuration.
  • Page 90 Voltage-free contact, not optically-isolated, closing current 6 mA, voltage with contact open 13 V typical closing current 6 mA, voltage with contact contact resistance max 50 Ω. open 13 V max contact resistance 50 Ω. mpxone +0300086EN rel. 2.2 - 13.11.2023 Technical specifications...
  • Page 91 4-pin Microfit crimp connector 0.05-0.52 (20- 24 AWG) Power supply for Ultracap Coded connection cable (see “Introduction”) 00:13 module Unipolar E*V valve Coded connection cable (see “Introduction”) Tab. 7.b (*) device to be incorporated. mpxone +0300086EN rel. 2.2 - 13.11.2023 Technical specifications...
  • Page 92 PLICA on a smartphone, with BLE connection, using the specifi c function on the alarm page (“Service” level access is required). Notice: deletion of the alarm log is irreversible. 300086_111 _R01 Fig. 8.a mpxone +0300086EN rel. 2.2 - 13.11.2023 Alarms and signals...
  • Page 93 YES abled when P14=0 Communication error automatic unchanged unchanged unchanged unchanged YES with stepper driver EVD ice/mini: automatic unchanged unchanged unchanged unchanged YES probe S1 fault mpxone +0300086EN rel. 2.2 - 13.11.2023 Alarms and signals...
  • Page 94 Notice: the meaning of parameters AL2/ALA2, AH2/AHA2, AA2, A2 and Ad2 are similar to AL/ALA, AH/AHA, AA, A1 and Ad however relating to St2. Notice: for alarms with an absolute activation threshold (A1=1) the thresholds ALA/ALA2 and AHA/AHA2 need to be set mpxone +0300086EN rel. 2.2 - 13.11.2023 Alarms and signals...
  • Page 95 (x=1 to 9). If parameter DOb is set on the main (value other than zero), then the main alarm relay is also activated. * = limited to 5 for the Basic model Code Description User User terminal Signal alarms from secondary to main 0/1 = not enabled/enabled mpxone +0300086EN rel. 2.2 - 13.11.2023 Alarms and signals...
  • Page 96 User User terminal HFn (*) Number of type HF alarms Ref. Description Measurement probe ALARM Set point Low temperature alarm threshold ALARM Type HA HACCP alarm black out Time Fig. 8.d mpxone +0300086EN rel. 2.2 - 13.11.2023 Alarms and signals...
  • Page 97 - check that the valve is not blocked - check the compressor capacity and the cooling request - check the PID integral parameter (PM2) - check that the MOP alarm delay time is correct (PM3) mpxone +0300086EN rel. 2.2 - 13.11.2023 Troubleshooting...
  • Page 98 - check that the compressor is working correctly High condensing temperature alarm High condensing temperature alarm: - check the condensing temperature probe - check the condensing temperature alarm threshold (Ac, AE) - check that the alarm delay is correct (Acd) mpxone +0300086EN rel. 2.2 - 13.11.2023 Troubleshooting...
  • Page 99 ≥ 1.2 - 31/10/2018 2.0 - 15/10/2019 Second release: generic functions ≥ 1.8 Basic and Medium 2.1 - 21-09-2021 Third release: Advanced version and integration ≥ 1.1.2 Advanced New functions: double compressor and generic warning mpxone +0300086EN rel. 2.2 - 13.11.2023 Release notes...
  • Page 100 +0300086EN rel. 2.2 - 13.11.2023 Release notes...
  • Page 101 +0300086EN rel. 2.2 - 13.11.2023 Release notes...
  • Page 102 Notes mpxone +0300086EN rel. 2.2 - 13.11.2023 Release notes...
  • Page 104 CAREL INDUSTRIES - Headquarters Via dell’Industria, 11 - 35020 Brugine - Padova (Italy) Tel. (+39) 049.9716611 - Fax (+39) 049.9716600 e-mail: carel@carel.com - www.carel.com mpxone +0300086EN rel. 2.2 - 13.11.2023...