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Lifasa MCA PLUS II Instruction Manual

Power analyzer
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MCA PLUS II - ITF
INSTRUCTION MANUAL

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  • Page 1 Power analyzer MCA PLUS II - ITF INSTRUCTION MANUAL...
  • Page 2 MCA PLUS II - ITF Instruction Manual...

  • Page 3: Safety Precautions

    LIFASA reserves the right to modify features or the product manual without prior notifi cation. DISCLAIMER LIFASA reserves the right to make modifi cations to the device or the unit specifi cations set out in this instruction manual without prior notice.

  • Page 4: Table Of Contents

    3�3�1�- List of terminals, MCA PLUS II model ������������������������������������������������������������������������������������������ 10 3�4�- CONNECTION DIAGRAM ������������������������������������������������������������������������������������������������������������������������ 11 3�4�1�- Measuring Three-Phase Networks with a 4-wire connection, MCA PLUS II model� ���������������� 11 3�4�2�- Measuring Three-Phase Networks with a 3-wire connection, MCA PLUS II model ���������������� 12 3�4�3�- Measuring Three-Phase Networks with a 3-wire connection and transformers with an...
  • Page 5 MCA PLUS II - ITF 4.9.23. Programming alarm 4 (Digital output T2) ���������������������������������������������������������������������������������� 49 4�9�24� Operating mode of digital input 1 ����������������������������������������������������������������������������������������������� 50 4�9�25� Operating mode of digital input 2 ����������������������������������������������������������������������������������������������� 50 4�9�26� Modbus Communications: Peripheral number ������������������������������������������������������������������������� 50 4�9�27� Modbus Communications: Transmission speed ���������������������������������������������������������������������� 51 4�9�28�...

  • Page 6: Revision Log

    MCA PLUS II - ITF REVISION LOG Table 1: Revision log� Date Revision Description 04/14 M001B01-03-14A Initial Version Changes in the following sections: 06/14 M001B01-03-14B 3.4 - 4.9 - 4.10 - 5 Changes in the following sections: 06/14 M001B01-03-14C 4.9.5 - 4.9.6 - 4.10.2.1...

  • Page 7: 1�- Verification Upon Reception

    MCA PLUS II - ITF 1�- VERIFICATION UPON RECEPTION Check the following points when you receive the unit: a) The unit meets the specifications described in your order. b) The unit has not suffered any damage during transport. c) Perform an external visual inspection of the unit prior to switching it on. d) Check that it has been delivered with the following: - An installation guide, - 2 Retainers used to attach the unit, - 5 connectors.

  • Page 8: 3�- Unit Installation

    MCA PLUS II - ITF 3�- UNIT INSTALLATION 3.1.- PRIOR RECOMMENDATIONS In order to use the unit safely, it is critical that individuals who handle it follow the safety measures set out in the standards of the country where it is being used, use the necessary personal protective equipment, and pay attention to the various warnings indicated in this instruction manual. The MCA PLUS II unit must be installed by authorised and qualified staff. The power supply plug must be disconnected and measuring systems switched off before handling, altering the connections or replacing the unit. It is dangerous to handle the unit while it is powered. Also, it is critical to keep the cables in perfect condition in order to avoid accidents, personal injury and damage to installations. The manufacturer of the unit is not responsible for any damage resulting from failure by the user or installer to heed the warnings and/or recommendations set out in this manual, nor for damage resulting from the use of non-original products or accessories or those made by other manufacturers. If an anomaly or malfunction is detected in the unit, do not use it to take any measurements. Inspect the work area before taking any measurements. Do not take measurements in dan- gerous areas or where there is a risk of explosion. Disconnect the unit from the power supply (unit and measuring system power supply) before maintaining, repairing or handling the unit's connections.

  • Page 9: 3�2�- Installation

    MCA PLUS II - ITF 3.2.- INSTALLATION The unit will be installed on a panel (92 x 92 mm panel drill hole, in compliance with DIN +0.8 +0.8 43700). All connections are located inside the electric panel. Terminals, opening covers or removing elements can expose parts that are hazardous to the touch while the unit is powered. Do not use the unit until it is fully installed. The unit must be connected to a power circuit that is protected with gl (IEC 269) or M type fuses with a rating of 0.5 to 2 A. It must be fitted with a circuit breaker or equivalent device, in order to be able to disconnect the unit from the power supply network. The power and voltage measuring circuit must be connected with cables that have a mini- mum cross-section of 1mm The secondary line of the current transformer will have a minimum cross-section of 2.5 Instruction Manual...

  • Page 10: 3�3�- Unit Terminals

    MCA PLUS II - ITF 3.3.- UNIT TERMINALS 3�3�1�- List of terminals, MCA PLUS II model Table 2:List of terminals of the MCA PLUS II Unit terminals 1 : A1 Auxiliary power supply. 13: I2, digital input 2 / tariff selection 2: A2 Auxiliary power supply. 14: V...

  • Page 11: 3�4�- Connection Diagram

    MCA PLUS II - ITF 3.4.- CONNECTION DIAGRAM 3�4�1�- Measuring Three-Phase Networks with a 4-wire connection, MCA PLUS II model� Measurement system: Power Supply OUTPUTS S0- S0+ S0+ RS485 INPUTS A(+) B(-) I1 I2 POWER SUPPLY Rc R2 R1 Tc T2 T1...

  • Page 12: 3�4�2�- Measuring Three-Phase Networks With A 3-Wire Connection, Mca Plus Ii Model

    MCA PLUS II - ITF 3�4�2�- Measuring Three-Phase Networks with a 3-wire connection, MCA PLUS II model� Measurement system: Power Supply OUTPUTS S0- S0+ S0+ RS485 INPUTS A(+) B(-) I1 I2 POWER SUPPLY Rc R2 R1 Tc T2 T1 Ph-Ph...

  • Page 13: Aron Connection, Mca Plus Ii Model

    MCA PLUS II - ITF 3�4�3�- Measuring Three-Phase Networks with a 3-wire connection and transformers with an ARON connection, MCA PLUS II model� Measurement system: Power Supply OUTPUTS S0- S0+ S0+ RS485 INPUTS A(+) B(-) I1 I2 POWER SUPPLY Rc R2 R1...

  • Page 14: 3�4�4�- Measuring Two-Phase Networks With A 3-Wire Connection, Mca Plus Ii Model

    A(+) B(-) I1 I2 POWER SUPPLY Rc R2 R1 Tc T2 T1 Ph-Ph Ph-N 300V ~ 520V ~ P2 P1 LOAD Figure 5: Measuring Two-Phase Networks with a 3-wire connection, MCA PLUS II model MCA PLUS II model: The transformer secondary value must be 5A or 1A Instruction Manual...

  • Page 15: Mca Plus Ii Model

    I1 I2 POWER SUPPLY Rc R2 R1 Tc T2 T1 Ph-Ph Ph-N 300V ~ 520V ~ P2 P1 LOAD Figure 6: Measuring Single-Phase Networks, phase to phase, with a 2-wire connection, MCA PLUS II model� MCA PLUS II model: The transformer secondary value must be 5A or 1A Instruction Manual...

  • Page 16: Mca Plus Ii Model

    I1 I2 POWER SUPPLY Rc R2 R1 Tc T2 T1 Ph-Ph Ph-N 300V ~ 520V ~ P2 P1 LOAD Figure 7: Measuring Single-Phase Networks, phase to neutral, with a 2-wire connection, MCA PLUS II MCA PLUS II model: The transformer secondary value must be 5A or 1A Instruction Manual...

  • Page 17: 4�- Operation

    Single-phase Three-phase -90º Generation Consumption Power Power Figure 8: Four quadrants of MCA PLUS II 4.1.- MEASURING PARAMETERS The unit displays the electrical parameters shown in Table 4 Table 3: Measuring parameters of the MCA PLUS II� Parameter Units Phases Total L1-L2-L3 Phase-neutral voltage Vph-N  Phase-phase voltage Vph-ph ...

  • Page 18: 4�2�- Keyboard Functions

    MCA PLUS II - ITF Parameter Units Phases Total L1-L2-L3 Harmonic Breakdown - Current harm V  (up to the 31st order harmonic) Total Active Energy M/kWh   Total Inductive Reactive Energy M/kvarLh   Capacitive Reactive Energy M/kvarCh   Total Reactive Energy M/kvarh   Total Apparent Energy M/kVAh ...
  • Page 19 MCA PLUS II - ITF Key functions on harmonics screens ( Table 6 Table 5: Key functions on harmonics screens� Long keystroke Short keystroke (2 s) Output of the harmonics screens Next screen Browsing the different types of har- Accessing the programming monics menu Key functions on the programming menu, query mode ( Table 7 Table 6: Key functions on the programming menu, query mode�...

  • Page 20: 4�3�- Display

    MCA PLUS II - ITF 4.3.- DISPLAY The unit has a backlit LCD display showing all the parameters listed in Table 3. The display is divided into four areas ( Figure 14 Figure 9: MCA PLUS II Display areas  The area with data per phase displays the instantaneous, maximum and minimum values of each phase being measured or calculated by the unit. The total data area displays the totals of the values being measured or calculated by the unit. Analogue bar, displays the % of the current power of the installation. , displays the value of the system's Cos or power factor in real time.

  • Page 21: 4�3�2� Analogue Bar

    MCA PLUS II - ITF 4�3�2� ANALOGUE BAR Figure 11: Analogue Bar The analogue bar displays two parameters:  Current power of the installation in % This parameter is displayed in 12 divisions, each one represents 10%, into which the analogue bar is divided. The unit calculates the current power of the installation using the formula: P = V*I*cos(φ) Where the voltage and the cos(φ) are the installation’s current values. The current is referenced in its full scale. (100% is the full scale of the unit and a value above 100% indicates that it is out of range).

  • Page 22: 4�4�- Led Indicators

    - ALARM, indicates that an alarm has been activated if it is on - KEY, LED that is lit when any key is pressed. Figure 12:LED Indicators of the MCA PLUS II� 4.5.- OPERATION PROFILES The MCA PLUS II has 3 operation profiles. The display screens will be opened for the corre- sponding profile:  Analyzer profile, analyzer,  Electrical energy efficiency profile, e  User profile, user, 4�5�1� ANALYZER PROFILE This profile is identified with the analyzer symbol on the bottom of the screen ( Figure 18 Figure 13: MCA PLUS II screen with the analyzer profile. Instruction Manual...
  • Page 23 MCA PLUS II - ITF The unit displays 11 different screens for the analyzer profile ( Table 9 Use keys and to browse the different screens. The inst symbol on the bottom of the screen indicates that the values being displayed are of the instantaneous type. Table 8: Analyzer profile screens. Screen Parameters (units) phase-phase Voltage L1-L2 (V ph-ph phase-phase Voltage L2-L3 (V ph-ph phase-phase Voltage L3-L1 (V ph-ph Frequency (Hz) phase-neutral Voltage L1 (V ph-N phase-neutral Voltage L2 (V ph-N phase-neutral Voltage L3 (V ph-N Frequency (Hz) Current L1 (A)
  • Page 24 MCA PLUS II - ITF Screen Parameters (units) Apparent Power L1 (M/KVA) Apparent Power L2 (M/KVA) Apparent Power L3 (M/KVA) Apparent Power III (M/KVA) The generation values are not measured when the 2 quadrant option is selected. Inductive Reactive Power L1 (M/Kvar Inductive Reactive Power L2 (M/Kvar Inductive Reactive Power L3 (M/Kvar Inductive Reactive Power III (M/Kvar Capacitive Reactive Power L1 (M/Kvar Capacitive Reactive Power L2 (M/Kvar Capacitive Reactive Power L3 (M/Kvar Capacitive Reactive Power III (M/Kvar...
  • Page 25 MCA PLUS II - ITF Screen Parameters (units) Power factor L1 (PF) Power factor L2 (PF) Power factor L3 (PF) Power factor III (PF) Cos φ L1 (cos φ) Cos φ L2 (cos φ) Cos φ L3 (cos φ) Cos φ III (cos φ) Also displayed on these screens are:  Maximum values To see the maximum values of the screen being displayed, press the key for 2 seconds. The max symbol is shown on the display ( Figure 19 The maximum and minimum values are reset on the programming menu. ( “4.9.12. Deleting maximum and minimum values”) Figure 14: Analyzer profile screen displaying the maximum values.

  • Page 26: 4�5�2� E 3 Profile

    The dem symbol appears on the display ( Figure 21 Figure 16: Analyzer profile screen displaying the maximum demand values. Press keys to stop displaying the maximum demand values. The maximum demand values are reset on the programming menu: “4.9.8. Deleting maximum demand” 4�5�2� e PROFILE This profile is identified with the e symbol on the bottom of the screen ( Figure 22 Figure 17: MCA PLUS II screen with the e profile. Instruction Manual...
  • Page 27 MCA PLUS II - ITF The installation's consumed and generated energy are displayed on the e profile of the unit. The installation status is also displayed: Installation is consuming energy. Installation is generating energy. A long keystroke (3 sec) of key will display the consumption values. The consumption values are identified with the negative sign on the screen, which appears in front of each parameter. A long keystroke (3 sec) of key will display the generation values. Use keys and to browse the different screens (short keystroke).
  • Page 28 MCA PLUS II - ITF Screen Parameters (units) Capacitive Reactive Energy Tariff 1, T1 (M/Kvar Capacitive Reactive Energy Tariff 2, T2 (M/Kvar Capacitive Reactive Energy Tariff 3, T3 (M/Kvar Total Capacitive Reactive Energy (M/Kvar Consumption and generation values Only available for the 4 quadrant option. Cost Tariff 1, T1 (cost) Cost Tariff 2, T2 (cost) Cost Tariff 3, T3 (cost) Total Cost (cost) Consumption and generation values Emissions Tariff 1, T1 (kgCO Emissions Tariff 2, T2 (kgCO Emissions Tariff 3, T3 (kgCO Total CO Emissions (kgCO Consumption and generation values No. of hours Tariff 1, T1(hours)

  • Page 29: 4�5�3� User

    MCA PLUS II - ITF 4�5�3� USER This profile is identified with the user symbol on the bottom of the screen ( Figure 23 Figure 18: Screen of the MCA PLUS II with the user profile. This profile displays the screens selected in the programming menu ( “4.9.9. Selecting the operation profile”). 4.6.- HARMONICS The unit can display the voltage and current harmonics, up to the 31st order harmonic, for each one of the lines, L1, L2 and L3. They must be activated in the programming menu to be displayed (“4.9.15. Activating the harmonics display screen.”).

  • Page 30: 4�7�- Inputs

    MCA PLUS II - ITF 4.7.- INPUTS The MCA PLUS II has two digital inputs (terminals 12 and 13 on ) that can be pro- Figure 1 grammed to operate as a logic or tariff selection input. See “4.9.26. Operating mode of digital input 1” and “4.9.27. Operating mode of digital input 2” The selected tariff can be determined in accordance with the status of the inputs, as shown in Table 11. Table 10: Selecting the tariff in accordance with the input status�...

  • Page 31: 4�9�- Programming

    MCA PLUS II - ITF 4.9.- PROGRAMMING From the programming menu you can:  Lock the status of the menu.  Define the transformation ratios.  Select the number of quadrants and type of installation.  Select the operation profile of the unit.  Program the carbon emission ratio, kgCO  Program the cost ratio.  Program the maximum demand parameters.  Delete the energy meters and the maximum and minimum values.  Modify the display's backlight.  Activate the harmonic display option.  Program alarms.  Program Modbus communications The MCA PLUS II does not record programming changes until the programming is complete.

  • Page 32: 4�9�1� Primary Voltage

    MCA PLUS II - ITF If you press the key after changing the last digit, it will jump back to the first digit so you can modify the previously programmed values again. To validate the data, press for 3 seconds and the prog icon will disappear from the display. If the password is correct, the icon will change its status to not locked If you do not enter the password or it is incorrect, you can open the programming menu but it cannot be modified. The programming menu is unlocked for a short period of time and it will be locked again when you exit the unit's menu. To permanently unlock the unit, select the programming parameter “4.9.33. Locking the programming” Press key to access the next programming step. Default password: 1234.

  • Page 33: 4�9�2� Secondary Voltage

    MCA PLUS II - ITF 4�9�2� Secondary voltage On this screen the voltage transformer secondary is programmed. Press key for 3 seconds to edit the transformer secondary value. The prog icon will be displayed on the bottom of the screen. To enter or modify the value, press the key repeatedly, increasing the value of the flashing digit. When the desired value is shown on the screen, move onto the next digit by pressing the key to modify the other values. If you press the key after changing the last digit, it will jump back to the first digit so you can modify the previously programmed values again.

  • Page 34: 4�9�4� Secondary Current

    MCA PLUS II - ITF Maximum programming value: 10000. Minimum programming value: 1. Voltage ratio x Current ratio < 600000 NB: The ratio is the relation between the primary and the secondary. Press key to access the next programming step 4�9�4� Secondary current On this screen the current transformer secondary is selected. Press key for 3 seconds to edit the transformer secondary value. The prog icon will be displayed on the bottom of the screen.

  • Page 35: 4�9�7� Maximum Demand Integration Period

    MCA PLUS II - ITF key is used to browse the different options Three-phase network measurement with a 4-wire connection. Three-phase network measurement with a 3-wire connection. Three-phase network measurement with a 3-wire connection and transformers with an ARON connection . Two-phase network measurement with a 3-wire connection.

  • Page 36: 4�9�8� Deleting Maximum Demand

    MCA PLUS II - ITF 4�9�8� Deleting maximum demand On this screen you select whether or not to delete the maximum demand. Press key for 3 seconds to edit the deletion selection. The prog icon will be displayed on the bottom of the screen. Press key to browse the two deletion options: Yes or No. To validate the data, press for 3 seconds and the prog icon will disappear from the display. Press key to access the next programming step 4.9.9. Selecting the operation profile The unit's operation profile is selected on this screen. Press key for 3 seconds to edit the operation profile selection.

  • Page 37: 4�9�10� Backlight, Turning On The Backlit Display

    MCA PLUS II - ITF Press key to browse the two profile options: the display screens are those that were stored in previous programming settings of the unit. (In the case of new units, these will be the same as those of the analyzer profile) , the display screens are selected. To validate the data, press for 3 seconds and the prog icon will disappear from the display. Press key to access the next programming step  Selecting the screens The following screen will be displayed if you have selected This screen displays the first screen of the analyzer profile, Phase-phase Voltage and the user profile viewing option can be selected.

  • Page 38: Selecting The Cos Φ - Pf Bar On The Display

    MCA PLUS II - ITF If you press the key after changing the last digit, it will jump back to the first digit so you can modify the previously programmed values again. To validate the data, press for 3 seconds and the prog icon will disappear from the display. The value 00 indicates that the backlight will stay permanently lit. The backlight time may range from 5 to 99 seconds. Press key to access the next programming step. 4�9�11� Selecting the Cos bar on the display φ - PF This screen is used to select the Cos φ - PF bar viewing option. Press key for 3 seconds to edit the selection. The prog icon will be displayed on the bottom of the screen.

  • Page 39: 4�9�13� Deleting Energy Values

    MCA PLUS II - ITF 4�9�13� Deleting energy values On this screen you select whether or not to delete the energy values Press key for 3 seconds to edit the selection. The prog icon will be displayed on the bottom of the screen. Press key to browse the two options (Yes and No). To validate the data, press for 3 seconds and the prog icon will disappear from the display. Press key to access the next programming step. 4�9�14� Selecting the Range of energies The operation of the range of energy is selected on this screen. Press key for 3 seconds to edit the selection. The prog icon will be displayed on the bottom of the screen.

  • Page 40: 4�9�16� Kgc0 Carbon Emission Ratio Of Generated Energy

    MCA PLUS II - ITF To validate the data, press for 3 seconds and the prog icon will disappear from the display. Press key to access the next programming step. 4�9�16� kgC0 carbon emission ratio of generated energy The carbon emissions ratio is the amount of emissions released into the atmosphere to produce a unit of electricity (1 kWh). The ratio for the European mix is approximately 0.65 kgCO kWh. Press key for 3 seconds to edit the emission ratio selection. The prog icon will be displayed on the bottom of the screen.

  • Page 41: 4�9�18� Cost Ratio Of Generated Energy

    MCA PLUS II - ITF To enter or modify the value, press the key repeatedly, increasing the value of the flashing digit. When the desired value is shown on the screen, move onto the next digit by pressing the key to modify the other values. If you press the key after changing the last digit, it will jump back to the first digit so you can modify the previously programmed values again. Press key to browse the different tariffs. To validate the data, press for 3 seconds and the prog icon will disappear from the display. The programmed value will be deleted if the entered value is higher than the maximum programming value. Maximum programming value: 1.9999.

  • Page 42: 4�9�19� Cost Ratio Of Consumed Energy

    MCA PLUS II - ITF 4�9�19� Cost Ratio of consumed energy The cost per kWh of electricity of the three tariffs of the unit is calculated on this screen. Press key for 3 seconds to edit the cost ratio selection. The prog icon will be displayed on the bottom of the screen. To enter or modify the value, press the key repeatedly, increasing the value of the flashing digit.
  • Page 43 MCA PLUS II - ITF If you press the key after changing the last digit, it will jump back to the first digit so you can modify the previously programmed values again. To validate the data, press for 3 seconds and the prog icon will disappear from the display. Press key to access the next programming step. Table 11: Parameter codes used to program the outputs� Parameter Phase Code Phase Code Phase Code Phase Code Phase-Neutral Voltage...
  • Page 44 MCA PLUS II - ITF  Programming the maximum value The maximum value: the alarm is activated when this value is exceeded. Press key for 3 seconds to edit the maximum value selection. The prog icon will be displayed on the bottom of the screen. To enter or modify the value, press the key repeatedly, increasing the value of the flashing digit. When the desired value is shown on the screen, move onto the next digit by pressing the key to modify the other values. In the case of some parameters ( ), you can modify the position of the decimal point.
  • Page 45 MCA PLUS II - ITF In the case of some parameters ( ) you can modify the position of the decimal point. Table 14 To do so, press key after modifying the last digit and the decimal point will start flashing. Press key repeatedly to modify the position of the decimal point. To validate the data, press for 3 seconds and the prog icon will disappear from the display. Press key to access the next programming step.  Programming the connection time delay The alarm connection delay is programmed on this screen in seconds.
  • Page 46 MCA PLUS II - ITF  Programming the latch The interlocking is selected on this screen, i.e., if the alarm is interlocked after it has been tripped, even when the condition that triggered it has disappeared. Press key for 3 seconds to edit the selection. The prog icon will be displayed on the bottom of the screen. Press key to browse the two options (Yes and No). To validate the data, press for 3 seconds and the prog icon will disappear from the display. Press key to access the next programming step. Note: If the unit is reset, the status of alarms is deleted and all alarms will return to the programmed standby status, provided that the condition that triggered them has been resolved.

  • Page 47: Programming Alarm 2 (Relay 2)

    MCA PLUS II - ITF  Programming the contact status The status of relay contacts is selected on this screen. Press key for 3 seconds to edit the selection. The prog icon will be displayed on the bottom of the screen. Press key to browse the two options: Normally open contact. Normally closed contact. To validate the data, press for 3 seconds and the prog icon will disappear from the display. Press key to access the next programming step 4.9.21. Programming alarm 2 (Relay 2) The values for alarm relay 2 are programmed on this screen.
  • Page 48 MCA PLUS II - ITF If you press the key after changing the last digit, it will jump back to the first digit so you can modify the previously programmed values again. To validate the data, press for 3 seconds and the prog icon will disappear from the display. Press key to access the next programming step Table 14: Parameter codes used to program digital outputs� Parameter Tariff Code Tariff Code Tariff Code Tariff Code Consumed Active Energy...

  • Page 49: Programming Alarm 4 (Digital Output T2)

    MCA PLUS II - ITF The programmed value will be deleted if the entered value is higher than the maximum programming value. Maximum programming value: 999.999 KWh Minimum programming value: 000.001 KWh Example: To program 500 Wh per pulse: 000.500 To program 1.5 kWh per pulse: 001.500 ...

  • Page 50: 4�9�24� Operating Mode Of Digital Input 1

    MCA PLUS II - ITF 4�9�24� Operating mode of digital input 1 The function of digital input 1 is selected on this screen. Press key for 3 seconds to edit the function selection. The prog icon will be displayed on the bottom of the screen. Press key to browse the two options: Logic input Tariff selection. To validate the data, press for 3 seconds and the prog icon will disappear from the display. Press key to access the next programming step. 4�9�25� Operating mode of digital input 2 The function of digital input 2 is selected on this screen.

  • Page 51: 4�9�27� Modbus Communications: Transmission Speed

    MCA PLUS II - ITF If you press the key after changing the last digit, it will jump back to the first digit so you can modify the previously programmed values again. The peripheral number ranges from 0 to 255. To validate the data, press for 3 seconds and the prog icon will disappear from the display. Press key to access the next programming step. 4�9�27� Modbus Communications: Transmission speed The transmission speed of modbus communications is programmed on this screen. Press key for 3 seconds to edit the transmission speed selection.

  • Page 52: 4�9�29� Modbus Communications: Number Of Data Bits

    MCA PLUS II - ITF 4�9�29� Modbus Communications: Number of data bits The number of data bits of Modbus communications are programmed on this screen. Press key for 3 seconds to edit the bit number selection. The prog icon will be displayed on the bottom of the screen. Press key to browse the two options: 7 or 8 bits. To validate the data, press for 3 seconds and the prog icon will disappear from the display. Press key to access the next programming step.

  • Page 53: 4�9�32� Password

    MCA PLUS II - ITF Press key to access the next programming step. 4�9�32� Password The password to modify the programming parameters is programmed on this screen. Press key for 3 seconds to edit the password selection. The prog icon will be displayed on the bottom of the screen. To enter or modify the value, press the key repeatedly, increasing the value of the flashing digit. When the desired value is shown on the screen, move onto the next digit by pressing the key to modify the other values.

  • Page 54: 4�10�- Communications

    4�10�1� CONNECTIONS The RS -485 cable must be wired with twisted pair cable with mesh shield (minimum 3 wires), with a maximum distance between the MCA PLUS II and the master unit of 1200 metres. A maximum of 32 MCA PLUS II units can be connected to this bus. Use an intelligent RS-232 to RS-485 network protocol converter to establish the communications with the master unit. RS-232 / USB / Ethernet / Profibus ...

  • Page 55: 4�10�2� Protocol

    MCA PLUS II - ITF 4�10�2� PROTOCOL In the Modbus protocol, the MCA PLUS II unit uses the RTU (Remote Terminal Unit) mode. The Modbus functions implemented in the unit are as follows: 0x03 and 0x04 function. Reading integer logs. 0x05 function. Writing a relay. 0x10 function. Writing multiple logs. 4�10�2�1 Ejemplo de lectura : Función 0x04� Question: Instantaneous value of the phase voltage of L1 Address Function Initial log No� of logs...

  • Page 56: 4�10�3� Comandos Modbus

    MCA PLUS II - ITF Response: Address Function Initial log Value 0834 FF00 CEEF 4�10�3� COMANDOS MODBUS 4�10�3�1� Measurement variables� All the adresses of Modbus memory are in Hexadecimal. For these variables is implemented the Function 0x03 and 0x04� Table 15: Modbus memory map (Table 1) Parameter Symbol Instantaneous Maximum Minimum Units L1 Phase voltage 00-01...
  • Page 57 MCA PLUS II - ITF Parameter Symbol Instantaneous Maximum Minimum Units Neutral Current N 44-45 14A-14B 1A8-1A9 L1 voltage % THD %THDV1 46-47 14C-14D 1AA-1AB % x 10 L2 voltage % THD %THDV2 48-49 14E-14F 1AC-1AD % x 10 L3 voltage % THD %THDV3 4A-4B 150-151 1AE-1AF % x 10...
  • Page 58 MCA PLUS II - ITF Parameter Symbol Tariff 1 Tariff 2 Tariff 3 Total Units Generated CO emissions KgCO 82-83 AC-AD D6-D7 102-103 Generation Cost 84-85 AE-AF D8-D9 104-105 Hours per tariff Hours 86-87 B0-B1 DA-DB 106-107 4�10�3�3� Voltage and current harmonics�...
  • Page 59 MCA PLUS II - ITF Table 18:Modbus memory map (Table 4). Parameter L1 Current L2 Current L3 Current Units Fundamental Harm. A88-A89 AA8-AA9 AC8-AC9 mA x 10 2nd Order harmonic % x 10 3rd Order harmonic % x 10 4th Order harmonic % x 10 5th Order harmonic % x 10...
  • Page 60 MCA PLUS II - ITF 4�10�3�5� Power status� TAll the Modbus map addresses are hexadecimal. The 0x04 function is implemented for this variable. This variable indicates the quadrant in which the unit is operating. Table 20:Modbus memory map: Power status Power status Variable Address Default value Power status The variable format is shown in Table 22: Table 21:Variable format: Power status� Bit 7 Bit 6 Bit 5...
  • Page 61 MCA PLUS II - ITF 4�10�3�6�2� Number of quadrants Table 23:Modbus memory map: Number of quadrants Maximum demand Default Configuration variable Address Valid data margin value 0: 4 quadrants Number of quadrants 2B64 1: 2 quadrants 4�10�3�6�3� Type of installation Table 24:Modbus memory map: Type of installation...
  • Page 62 MCA PLUS II - ITF 4�10�3�6�6� Display backlight Table 27:Modbus memory map: Backlight Backlight Default Configuration variable Address Valid data margin value 0: Always lit Backlight 2B5E 5 - 99 seconds 4�10�3�6�7� Activating the harmonics display screen Table 28:Modbus memory map: Display of harmonics...
  • Page 63 MCA PLUS II - ITF 4.10.3.6.10. Programming alarms 1 and 2 (Relays 1 and 2) Table 31:Modbus memory map: Programming alarms 1 and 2� Programming alarms 1 and 2 Address Default Configuration variable Valid data margin value Relay 1 Relay 2 Maximum value.
  • Page 64 MCA PLUS II - ITF Table 35:Variable format: Status of digital inputs� Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Input 2 Input 1 0: OFF 0: OFF 1: ON 1: ON 4�10�3�6�13 Digital outputs...

  • Page 65: 5�- Technical Features

    MCA PLUS II - ITF 5�- TECHNICAL FEATURES AC Power supply Rated voltage 85 ... 265 V Frequency 50 ... 60 Hz Consumption 3.5 ... 6 VA Installation category CAT III 300 V DC Power supply Rated voltage 95 ... 300 V Consumption 2 ...
  • Page 66 MCA PLUS II - ITF Relay outputs Quantity Max� voltage open contacts 250 V ~ Maximum current Maximum switching power 1500 W (AC1) Electrical life (250 VAC / 5A) 60x10 cycles Mechanical life 10x10 cycles Digital inputs Quantity Type NPN Potential free contact...
  • Page 67 MCA PLUS II - ITF 60.9 96.7 10.9 Figure 21: Dimensions of the MCA PLUS II� Instruction Manual...

  • Page 68: 6�- Maintenance And Technical Service

    • LIFASA accepts no liability due to the possible damage to the unit or other parts of the installation, nor will it cover any possible sanctions derived from a possible failure, improper installation or “improper usage”...
  • Page 69 MCA PLUS II - ITF Instruction Manual...
  • Page 70 LIFASA (INTERNATIONAL CAPACITORS, S.A.) C/Vallès 32, Pol. Ind. Can Bernades 08130 -Santa Perpètua de Mogoda (Barcelona) SPAIN Tel.: (+34) 935 747 017 - Fax: (+34) 935 448 433 www.lifasa.com info@lifasa.com...

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