Circutor Computer SMART III 6 Instruction Manual
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Circutor Computer SMART III 6 Instruction Manual

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REACTIVE ENERGY REGULATOR
Computer SMART III
INSTRUCTION MANUAL
(M015B01-03-21A)

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  • Page 1 REACTIVE ENERGY REGULATOR Computer SMART III INSTRUCTION MANUAL (M015B01-03-21A)
  • Page 2 Computer SMART III Instruction Manual...

  • Page 3: Safety Precautions

    CIRCUTOR, SA reserves the right to make modifications to the device or the unit specifications set out in this instruction manual without prior notice. CIRCUTOR, SA on its web site, supplies its customers with the latest versions of the device specifica- tions and the most updated manuals.

  • Page 4: Table Of Contents

    3�4�- DEVICE TERMINALS ����������������������������������������������������������������������������������������������������������������������������������������������� 12 3�5�- CONNECTION DIAGRAM ����������������������������������������������������������������������������������������������������������������������������������������� 13 3�5�1�- 3 VOLTAGES + NEUTRAL AND 3 CURRENTS, COMPUTER SMART III 6 MODEL ��������������������������������������������� 13 3�5�2�- 3 VOLTAGES + NEUTRAL AND 3 CURRENTS, COMPUTER SMART III 12 MODEL ������������������������������������������� 14 3�5�3�- 3 VOLTAGES + NEUTRAL AND 3 CURRENTS, COMPUTER SMART III 14 MODEL �������������������������������������������...
  • Page 5 Computer SMART III 5�4�- CONNECTION AND RECLOSING TIME ���������������������������������������������������������������������������������������������������������������������77 5�5�- CONNECTION TYPE ������������������������������������������������������������������������������������������������������������������������������������������������78 5�6�- PHASE CONNECTION ���������������������������������������������������������������������������������������������������������������������������������������������78 5�7�- NO� OF STAGES ������������������������������������������������������������������������������������������������������������������������������������������������������ 80 5�8�- PROGRAM �������������������������������������������������������������������������������������������������������������������������������������������������������������� 81 5�9�- C/K FACTOR ����������������������������������������������������������������������������������������������������������������������������������������������������������82 5�10�- VOLTAGE LEVEL ���������������������������������������������������������������������������������������������������������������������������������������������������84 5�11�- EXPERT SETUP ���������������������������������������������������������������������������������������������������������������������������������������������������� 85 5�12�- VOLTAGE TRANSFORMATION RATIO ��������������������������������������������������������������������������������������������������������������������...

  • Page 6: Revision Log

    Computer SMART III REVISION LOG Table 1: Revision log� Date Revision Description 05/14 M015B01-03-14A Initial Version Modification in sections: 03/15 M015B01-03-15A 3.5. - 4.2. - 4.3. - 4.9. - 9 Modification in sections: 04/16 M015B01-03-15B 2 - 3.4. - 3.5. - 4.4. - 4.4.1. - 4.6.1.1.- 4.6.1.2.- 4.6.1.3.- 4.8.- 4.9.3.

  • Page 7: 1�- Verification Upon Reception

    - 2 digital inputs: for selecting the target cosine (4 target cosines). - 2 digital outputs and 1 relay output: completely programmable as alarms. - 1 relay output, specific for the fan. - 6 output relays (Computer SMART III 6 model) ,12 output relays (Computer SMART III 12 Instruction Manual...
  • Page 8 Computer SMART III model) or 14 output relays (Computer SMART III 14 model) for regulating the cos φ by means of capacitors. - RS-485 communications, MODBUS RTU©. Instruction Manual...

  • Page 9: 3�- Device Installation

    Computer SMART III 3.- DEVICE INSTALLATION 3�1�- PRIOR RECOMMENDATIONS In order to use the device 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.

  • Page 10: 3�3�- Installation

    Computer SMART III The stage connection and reclosing times must be adapted to the discharge time of the capacitors, and to the pre-determined operating rates, according to their specific features, for the capacitor bank operating elements. It is important to remember that excessively short connection times can cause serious damage to the components of the device.
  • Page 11 Computer SMART III One or three external current transformers (CT) need to be installed in order to measure current. Usu- ally, the transformation ratio of these CTs is In/5 A, where In is at least 1.5 times the total maximum load current.

  • Page 12: 3�4�- Device Terminals

    Computer SMART III 3�4�- DEVICE TERMINALS Table 3:List of Computer SMART III terminals Terminals of the top side of the device 1: A1, Auxiliary power supply. 23: R8, Relay output 8 (Computer SMART III 12 and 14 models) 2: A2, Auxiliary power supply. 24: R9, Relay output 9 (Computer SMART III 12 and 14 models) 3: V , L1 voltage input...

  • Page 13: 3�5�- Connection Diagram

    Relay COM 1 2 3 4 5 6 Figure 3: 3 voltages + neutral and 3 currents, Computer SMART III 6 model� Note: If the connection layout mentioned above is not respected, the phase must be adjusted, following the procedure described in section “5.6.- PHASE CONNECTION”...

  • Page 14: 3�5�2�- 3 Voltages + Neutral And 3 Currents, Computer Smart Iii 12 Model

    Computer SMART III 3�5�2�- 3 voltages + neutral and 3 currents, Computer SMART III 12 model 3U.3C Connection type: Power Supply Power Supply Relay COM 1 2 3 4 5 6 7 8 9 10 11 12 For Computer SMART III 12 Figure 4: 3 voltages + neutral and 3 currents, Computer SMART III 12 model�...

  • Page 15: 3�5�3�- 3 Voltages + Neutral And 3 Currents, Computer Smart Iii 14 Model

    Computer SMART III 3�5�3�- 3 voltages + neutral and 3 currents, Computer SMART III 14 model 3U.3C Connection type Power Supply Power supply Relay COM 1 2 3 4 5 6 7 8 9 10 11 12 13 14 COM Figure 5: 3 voltages + neutral and 3 currents, Computer SMART III 14 model�...

  • Page 16: 3�5�4�- 3 Voltages + Neutral And 1 Current, Computer Smart Iii 6 Model

    Relay COM 1 2 3 4 5 6 Figure 6: 3 voltages + neutral and 1 current, Computer SMART III 6 model� Note: If the connection layout mentioned above is not respected, the phase must be adjusted, follow- ing the procedure described in section “5.6.- PHASE CONNECTION”...

  • Page 17: 3�5�5�- 3 Voltages + Neutral And 1 Current, Computer Smart Iii 12 Model

    Computer SMART III 3�5�5�- 3 voltages + neutral and 1 current, Computer SMART III 12 model 3U.1C Connection type: Power Supply Power Supply Relay COM 1 2 3 4 5 6 7 8 9 10 11 12 For Computer SMART III 12 Figure 7: 3 voltages + neutral and 1 current, Computer SMART III 12 model�...

  • Page 18: 3�5�6�- 3 Voltages + Neutral And 1 Current, Computer Smart Iii 14 Model

    Computer SMART III 3�5�6�- 3 voltages + neutral and 1 current, Computer SMART III 14 model 3U.1C Connection type: Power Supply Power Supply Relay COM 1 2 3 4 5 6 7 8 9 10 11 12 13 14 COM Figure 8: 3 voltages + neutral and 1 current, Computer SMART III 14 model�...

  • Page 19: 3�5�7�- 2 Voltages And 1 Current, Computer Smart Iii 6 Model

    Relay COM 1 2 3 4 5 6 Figure 9: 2 voltages and 1 current, Computer SMART III 6 model� Note: If the connection layout mentioned above is not respected, the phase must be adjusted, following the procedure described in section “5.6.- PHASE CONNECTION”...

  • Page 20: 3�5�8�- 2 Voltages And 1 Current, Computer Smart Iii 12 Model

    Computer SMART III 3�5�8�- 2 voltages and 1 current, Computer SMART III 12 model 2U.1C Connection type: Power Supply Power Supply Relay COM 1 2 3 4 5 6 7 8 9 101112 For Computer SMART III 12 Figure 10: 2 voltages and 1 current, Computer SMART III 12 model� Note: If the connection layout mentioned above is not respected, the phase must be adjusted, follow- ing the procedure described in section “5.6.- PHASE CONNECTION”...

  • Page 21: 3�5�9�- 2 Voltages And 1 Current, Computer Smart Iii 14 Model

    Computer SMART III 3�5�9�- 2 voltages and 1 current, Computer SMART III 14 model 2U.1C Connection type: Power Supply Power Supply Relay COM 1 2 3 4 5 6 7 8 9 10 11 12 13 14 COM Figure 11: 2 voltages and 1 current, Computer SMART III 14 model� Note: If the connection layout mentioned above is not respected, the phase must be adjusted, following the procedure described in section “5.6.- PHASE CONNECTION”...

  • Page 22: 3�5�10�- Leakage Current Connection

    Computer SMART III 3�5�10�- Leakage current connection, I Δ To measure the leakage current, an earth leakage transformer must be used, such as WGS. The leakage current transformer must be connected such as to measure the current of the capacitor bank.

  • Page 23: 3�6�- Starting Up The Device

    Computer SMART III 3�6�- STARTING UP THE DEVICE Once the Computer SMART III is powered on, the following screen appears on the display, Figure 13 which shows the name of the device, the version and the model. Figure 13: Computer SMART III home screen� After a few seconds, the main measurement screen appears.

  • Page 24: 4�- Operation

    Capacitive Capacitive Computer SMART III 4.- OPERATION Generated Consumed The Computer SMART III is a reactive energy regulator. The device measures the cos φ of the mains Power Power and regulates the connection and disconnection of capacitors, via the relays, in order to correct it. The control is carried out at the four quadrants, Figure 14 Inductive...

  • Page 25: 4�1�- Definitions

    Computer SMART III 4�1�- DEFINITIONS This section provides a number of definitions that may be useful for understanding the operation of the device. 4�1�1� Four-quadrant regulator The regulator is capable of performing the measurement and regulation functions when the active power is transferred from the mains to the loads (common case in a consumer installation) or when the load is transferred to the mains (in the case of installations with generators that not only allow the consumption of energy, but can also export and sell energy).

  • Page 26: 4�1�5� Plug And Play

    Computer SMART III The device can be used to configure programs from 1.1.1.1 to 1.9.9.9. 4�1�5� Plug and Play When a reactive energy regulator is installed, a series of parameters need to be configured in order to ensure that it operates correctly. Some of these parameters might be difficult to discover, for example such as the voltage phases or the correspondence between measured current and its voltage, as well as the current transformer ratio.

  • Page 27: 4�2�- Measurement Parameters

    Computer SMART III 4�2�- MEASUREMENT PARAMETERS The device displays the following electrical parameters: 3U.3C 4�2�1� Connection type: 3U.3C Table 4: Computer SMART III measurement parameters ( connection) Phases Total Parameter Units L1-L2-L3 Phase-neutral voltage     Phase-phase voltage ...

  • Page 28: 4�2�2� Connection Type: 3U.1C

    Computer SMART III 3U.1C 4�2�2� Connection type: 3U.1C Table 5: Computer SMART III measurement parameters ( connection) Phases Total Parameter Units L1-L2-L3 Phase-neutral voltage     Phase-phase voltage     Current (L1)   Leakage current ...

  • Page 29: 4�2�3� Connection Type: 2U.1C

    Computer SMART III 2U.1C 4�2�3� Connection type: 2U.1C Table 6: Computer SMART III measurement parameters ( connection) Phases Total Parameter Units L1-L2-L3 Phase-neutral voltage Phase-phase voltage (L1-L2)   Current (L1)   Leakage current    Frequency (L1) ...

  • Page 30: 4�3�- Keyboard Functions

    Computer SMART III 4�3�- KEYBOARD FUNCTIONS The Computer SMART III has 5 keys that can be used to browse between the various screens and program the device. Keys functions on the measurement screens ( Table 7 Table 7: Keys functions on the measurement screens� Short keystroke Long keystroke (3 s) Previous screen...
  • Page 31 Computer SMART III Keys functions on the Configuration and Test screens, edit mode ( Table 9 Table 9: Keys functions on the Configuration and Test screens, edit mode� Short keystroke Increase the value or show the next option. Reduce the value or show the previous option. Previous configuration parameter Next configuration parameter Exit Edit mode...

  • Page 32: 4�4�- Display

    Computer SMART III 4�4�- DISPLAY The device has a backlit LCD display. The display is divided into four areas ( Figure 15 Status of the capacitors Status of the device Analogue bar Data area Figure 15: Areas of the Computer SMART III display� ...

  • Page 33: 4�4�1� Status Of The Capacitors

    Computer SMART III Status o 4�4�1� STATUS OF THE CAPACITORS capacito Figure 16: Status of the capacitors� Status o device This area shows the status of the relays (stages) of the device, and thus of the capacitors connected to it. e bar The possible states are: AUTO.

  • Page 34: 4�4�3� Analogue Bar

    Computer SMART III 4�4�3� ANALOGUE BAR Figure 17: Analogue Bar This bar is displayed on the measurement screens, and can show:  the current of each phase as a %.  the current THD of each phase.  the power connected to the capacitor bank. The parameter to be displayed is selected in the setup menu.

  • Page 35: 4�5�- Led Indicators

    Computer SMART III 4�5�- LED INDICATORS The Computer SMART III device comprises:  A CPU LED: Indicates that the device is working properly by flashing once per second.  An Alarm LED: Indicates that an alarm is activated.  A Fan LED: Indicates that the fan is operating. ...

  • Page 36: 4�6�- Operating States

    Computer SMART III 4�6�- OPERATING STATES The Computer SMART III has two operating states with the display screens matching the selected status:  Measurement status,  Test status, 4�6�1� MEASUREMENT STATUS This status is identified by the symbol in the device status area of the display ( Figure 15 It is the normal operating status of the Computer SMART III, in which the device measures the various grid parameters and acts according to the configured parameters, connecting or disconnecting the...
  • Page 37 Computer SMART III Phase - Neutral Voltages Parameters L1 Phase - Neutral Voltage (V or kV) L2 Phase - Neutral Voltage (V or kV) L3 Phase - Neutral Voltage (V or kV) Phase - Neutral Voltage III(V or kV) Display the minimum values. Display the maximum values.
  • Page 38 Computer SMART III Cosine Parameters φ L1 Cos φ L2 Cos φ L3 Cos φ φ III L: Inductive / C: capacitive +: Consumed / -: generated Display the minimum values. Display the maximum values. Press the key to switch to the Energy III consumed screen. Power Factor Parameters Power Factor...
  • Page 39 Computer SMART III Active Power Parameters L1 Active power (kW or MW) L2 Active power (kW or MW) L3 Active power (kW or MW) Active Power III(kW or MW) Display the minimum values. Display the maximum values. Inductive Reactive Power Parameters L1 Inductive Reactive Power L2 Inductive Reactive Power...
  • Page 40 Computer SMART III Apparent Power Parameters Apparent Power Apparent Power Apparent Power Apparent Power (kVA or MVA) Display the minimum values. Display the maximum values. Leakage current / Frequency / Temperature Parameters Leakage current (mA) Frequency (Hz) Temperature (ºC) Display the minimum values. Display the maximum values.
  • Page 41 Computer SMART III Voltage harmonics Parameters L1 Voltage harmonic L2 Voltage harmonic L3 Voltage harmonic Change the harmonic no.: 3, 5, 7, 9, 11, 13, 15, 17. Display the maximum values. Current THD Parameters L1 Current THD L2 Current THD L3 Current THD Display the maximum values.
  • Page 42 Computer SMART III Energy III consumed Parameters Active Energy III consumed (kWh or MWh) Inductive Reactive Energy III consumed (kvarLh or MvarLh) Capacitive Reactive Energy III consumed (kvarCh or MvarCh) Apparent Energy III consumed (kVAh or MVAh) key to switch to the Main screen. Press the Energy III generated Parameters...
  • Page 43 Computer SMART III Active alarms Parameters Active alarm code E01 to E017 (Table 10) If there are more than 4 alarms, the information is scrolled on the screen. Table 10: Alarm codes� Code Description No current� The load current is lower than the minimum value or some of the current trans- formers (CT) are not connected.
  • Page 44 Computer SMART III Table 10 (Continuation): Alarm codes� Code Description Disconnection Status due to Leakage Alarm. The leakage current is higher than that configured in the Leakage Current alarm. Repeated Leakage Alarm. Leakages have been detected repeatedly in the system,but they are not caused by a capacitor.
  • Page 45 Computer SMART III 3U�1C 4�6�1�2� Connection (3 Voltages + Neutral and 1 current) Main Screen Parameters Active Power III (kW or MW) Reactive Power III(kvar or Mvar) +: inductive / -: capacitive φ L: Inductive / C: capacitive +: consumed / -: generated Phase - Phase Voltage III(V or kV) Display the minimum values.
  • Page 46 Computer SMART III Currents Parameters Current (A) Display the minimum values. Display the maximum values. key to switch to the Cosine Press the screen. φ Cosine Parameters φ φ L: Inductive / C: capacitive +: consumed / -: generated Display the minimum values. Display the maximum values.
  • Page 47 Computer SMART III Power III Parameters Active Power III(kW or MW) Inductive Reactive Power III (kvarL or MvarL) Capacitive Reactive Power III (kvarC or MvarC) Apparent Power III (kVA or MVA) Display the minimum values. Display the maximum values. Leakage current / Frequency / Temperature Parameters Leakage current (mA) Frequency (Hz)
  • Page 48 Computer SMART III Voltage harmonics Parameters L1 Voltage harmonic L2 Voltage harmonic L3 Voltage harmonic Change the harmonic no.: 3, 5, 7, 9, 11, 13, 15, 17. Display the maximum values. Current THD Parameters Current THD (%) Display the maximum values. Current harmonics Parameters Current harmonic (%)
  • Page 49 Computer SMART III Energy III consumed Parameters Active Energy III consumed (kWh or MWh) Inductive Reactive Energy III consumed (kvarLh or MvarLh) Capacitive Reactive Energy III consumed (kvarCh or MvarCh) Apparent Energy III consumed (kVAh or MVAh) key to switch to the Main screen. Press the Energy III generated Parameters...
  • Page 50 Computer SMART III Active alarms Parameters Active alarm code E01 to E017 (Table 10). If there are more than 4 alarms, the information is scrolled on the screen. 4�6�1�3� 2U�1C Connection (2 Voltages and 1 current) Main Screen Parameters Active Power III (kW or MW) Reactive Power III(kvar or Mvar) +: inductive / -: capacitive φ...
  • Page 51 Computer SMART III Currents Parameters Current (A) Display the minimum values. Display the maximum values. key to switch to the Cosine Press the screen. φ Cosine Parameters φ φ L: Inductive / C: capacitive +: consumed / -: generated Display the minimum values. Display the maximum values.
  • Page 52 Computer SMART III Power III Parameters Active Power III(kW or MW) Inductive Reactive Power III (kvarL or MvarL) Capacitive Reactive Power III (kvarC or MvarC) Apparent Power III (kVA or MVA) Display the minimum values. Display the maximum values. Leakage current / Frequency / Temperature Parameters Leakage current (mA) Frequency (Hz)
  • Page 53 Computer SMART III Voltage harmonics Parameters Voltage harmonic (%) Change the harmonic no.: 3, 5, 7, 9, 11, 13, 15, 17. Display the maximum values. Current THD Parameters Current THD (%) Display the maximum values. Current harmonics Parameters Current harmonic (%) Change the harmonic no.: 3, 5, 7, 9, 11, 13, 15, 17.
  • Page 54 Computer SMART III Energy III consumed Parameters Active Energy III consumed (kWh or MWh) Inductive Reactive Energy III consumed (kvarLh or MvarLh) Capacitive Reactive Energy III consumed (kvarCh or MvarCh) Apparent Energy III consumed (kVAh or MVAh) Press the key to switch to the Main screen. Energy III generated Parameters Active Energy III generated...

  • Page 55: 4�6�2� Test Status

    Computer SMART III Active alarms Parameters Active alarm code E01 to E017 Table 10 If there are more than 4 alarms, the information is scrolled on the screen. 4�6�2� TEST STATUS This status is identified by the symbol in the device status area of the display ( Figure 15 The stages can be connected and disconnected manually, and the measured parameters that relate to each one of the stages can be displayed.
  • Page 56 Computer SMART III AutoTest Parameters AutoTest home screen. To start the AutoTest: Press the key, OFF flashes. Press the key to switch from OFF to START Press the key to start the AutoTest Once the AutoTest has started, the results of the capacitors that are connected and disconnected are shown: Leakage current (mA)
  • Page 57 Computer SMART III Cosine Test Parameters φ Display screen of the: φ ( 2U.1C and 3U.1C connection) L1 Cos φ ( 3U.3C connection) L2 Cos 3U.3C connection) φ ( L3 Cos 3U.3C connection) φ ( 3U.3C connection) φ III ( L: Inductive / C: capacitive +: consumed / -: generated Current THD Test...

  • Page 58: 4�7�- Inputs

     Two digital outputs, optoisolated NPN transistors (terminals 34, 35 and 36 of ), fully Figure 2 programmable; see “5.21.- ENABLING ALARMS”. Computer SMART III 6 model:  Six output relays (terminals 15 to 21 of ) for regulating the cos φ by means of capac- Figure 2 itors.

  • Page 59: 4�9�- Communications

    Computer SMART III 4�9�- COMMUNICATIONS Computer SMART III devices have an RS-485 serial communication output with the Modbus RTU ® communications protocol. 4�9�1� CONNECTIONS The RS -485 cable should be wired with a twisted pair cable with mesh shield (minimum 3 wires), with a maximum distance between the Computer SMART III and the master device of 1200 metres.

  • Page 60: 4�9�2� Protocol

    Computer SMART III 4�9�2� PROTOCOL The Modbus protocol is an industry communication standard which enables networking of multiple devices, with one master and several slaves. It allows individual master-slave dialogue and also enables commands in broadcast format. In the Modbus protocol, the Computer SMART III device uses the RTU (Remote Terminal Unit) mode. In the RTU mode, the message start and end are detected with silences of at least 3.5 characters, and the 16-bit CRC error-detection method is used.

  • Page 61: 4�9�3� Modbus Memory Map

    Computer SMART III 4�9�3� MODBUS MEMORY MAP A.- Measurement Variables For these variables Function 04 is implemented: reading logs. The Modbus addresses of all the tables are hexadecimal. Table 13: Modbus memory map: measurement variables (Table 1) Parameter Instantaneous Maximum Minimum Units L1 phase voltage...
  • Page 62 Computer SMART III Table 13 (Continuation): Modbus memory map: measurement variables (Table 1) Parameter Instantaneous Maximum Minimum Units L3 kvar sign 4C-4D +1 or -1 Three-phase phase voltage 4E-4F 24E-24F 34E-34F V/100 Three-phase current 50-51 250-251 350-351 Three-phase active power 52-53 252-253 352-353...
  • Page 63 Alarm variable 605-606 Status of the outputs Status of the digital inputs No. of connections, of each of the 14 relays (6 in the Computer SMART III 6 model, 625-63E 12 in the Computer SMART III 12 model,) Instruction Manual...
  • Page 64 Shows the status of the 14 (Computer SMART III 14 model), 12 (Computer SMART III 12 model) or 6 (Computer SMART III 6 model) output relays. It is a 16-bit variable in which each bit indicates the status of a relay.
  • Page 65 Computer SMART III B.- Programming variables The following functions are implemented for these variables: Function 04: reading logs. Function 10: Writing multiple logs. Table 16:Modbus memory map: programming variables (Table 1) Device parameters Configuration variable Address Serial number 1000-1003 Frame number 1010-1013 Version 1020-1021...
  • Page 66 Computer SMART III Table 20:Modbus memory map: programming variables (Table 5) Status of the stages Configuration variable Address Valid data window Default value 1110 1111 1112 1113 1114 0 (Auto), 1115 1 (On), 1116 1117 2 (OFF), 1118 3 (OnNc) 1119 111A 111B...
  • Page 67 Table 27:Modbus memory map: programming variables (Table 12) No� of stages Configuration variable Address Valid data window Default value 0-6 (Computer SMART III 6) No. of stages 113B 0-12 (Computer SMART III 12) 0-14 (Computer SMART III 14) Table 28:Modbus memory map: programming variables (Table 13)
  • Page 68 Computer SMART III Table 33:Modbus memory map: programming variables (Table 18) Alarm: Cos φ low Configuration variable Address Valid data window Default value Values of Cos φ low 1149 50 - 100 (Value x 100) Current value 114A 0 - 9999 A Type of Cos φ...
  • Page 69 Computer SMART III Table 39 (Continuation): Modbus memory map: programming variables (Table 24) Enabling alarms Configuration variable Address Valid data window Default value Enable Alarm E13 1161 Enable Alarm E14 1162 Enable Alarm E15 1163 Enable Alarm E16 1164 Enable Alarm E17 1165 Output associated with Alarm E01 1170...

  • Page 70: 4�9�4� Example Of A Modbus Query

    Computer SMART III 4�9�4� EXAMPLE OF A MODBUS QUERY Query: Instantaneous value of the L1 phase voltage Address Function Initial log No� of logs 0000 0002 70B0 Address: 0A, Peripheral number: 10 in decimal. Function: 04, Read function. Initial Log: 0000, log from which to start reading. No�...

  • Page 71: 5�- Configuration

    Computer SMART III 5.- CONFIGURATION The various configuration parameters of the device can be consulted and edited in the device setup menu. The device always keeps the capacitors disconnected (except in the Plug&Play function). This status is identified by the symbol in the device status area of the display ( Figure 15 To access the setup menu, long keystroke the...

  • Page 72: 5�1�- Plug&Play

    Computer SMART III 5�1�- PLUG&PLAY The Plug&Play function assists the user during the configuration of the device, since it automatically configures the basic parameters that are required for the device to perform its regulation functions correctly. To start the Plug&Play process, press the key.
  • Page 73 Computer SMART III Once the Plug&Play function of the device ends, if no errors occurred during the process, the results are shown by the display on two screens, as follows: Connection type: 3U.3C: 3 voltages and 3 currents� 3U.1C: 3 voltages and 1 current� 2U�1U: 2 voltages and 1 current�...
  • Page 74 Computer SMART III Table 41 (Continuation): Code of Plug&Play errors� Code Description Phase not found. Cosine out of range (between 0.62 and 0.99 inductive). Unstable measurement. Load changes during the process. Error in the measurement of the largest capacitor. No capacitors found. Incorrect measurement of the number of capacitors.

  • Page 75: 5�2�- Current Transformation Ratio

    Computer SMART III 5�2�- CURRENT TRANSFORMATION RATIO The primary and secondary value of the current transformer is configured in this point. Press the key to enter edit mode. It is identified by the symbol and the flashing of the digits to be modified. key increases the digit value or shows the next option.

  • Page 76: 5�3�- Target Cos

    Computer SMART III 5�3�- TARGET COS φ makes it possible to define the power factor required for the installation. The Computer The cos φ SMART III device inserts the number of capacitors required in order to get as close to this target value as possible.

  • Page 77: 5�4�- Connection And Reclosing Time

    Computer SMART III 5�4�- CONNECTION AND RECLOSING TIME In this point the action times of the device are configured in seconds: is the minimum time between the connection and disconnection of a single stage. TREC is the maximum time between the disconnection and connection of a single stage. TREC must be greater than ;...

  • Page 78: 5�5�- Connection Type

    Computer SMART III 5�5�- CONNECTION TYPE In this point the connection type of the installation is selected, where: 3u3C : 3 voltages + neutral and 3 currents. 3u1C : 3 voltages + neutral and 1 current. 2u1C : 2 voltages and 1 current. Press the key to enter edit mode.
  • Page 79 Computer SMART III Press the key to enter edit mode. It is identified by the symbol and the flashing of the digits to be modified. key shows the next option and the key shows the previous option. Press to validate the data; the symbol disappears from the display.

  • Page 80: 5�7�- No� Of Stages

    In this point the number of stages is selected, in other words the number of relay outputs that the device will have. According to the model, Computer SMART III 6, SMART III 12 or SMART III 14 , it can be configured with up to 6 or up to 12 outputs.

  • Page 81: 5�8�- Program

    Computer SMART III Press to validate the data; the symbol disappears from the display. Press the key to access the next programming step. If no keys are pressed for 5 minutes, the device switches to the simulation screen, “5.30.- SIMULATION SCREEN”...

  • Page 82: 5�9�- C/K Factor

    Computer SMART III 5�9�- C/K FACTOR The C/K factor is adjusted according to the reactive current provided by the smallest stage, measured in the secondary of the current transformer (CT). The adjustment value of this factor therefore depends on the power of the smallest stage, the ratio of the CTs and the network voltage. provide the values to which the C/K should be adjusted for a 400 V AC network Table 43 Table 44...
  • Page 83 Computer SMART III For other voltages or conditions not included in the table, the value of C/K can be obtained by means of a simple calculation. Calculating the C/K Factor The equation for calculating the C/K factor is: ⋅ ⋅ , Ic where : is the smallest capacitor current.

  • Page 84: 5�10�- Voltage Level

    Computer SMART III key skips to the previous digit. key skips to the next digit. key increases the digit value and the key reduces the digit value. Press to validate the data; the symbol disappears from the display. Minimum value: 0.02 Maximum value: 1.0 If the value entered is lower than the minimum value or higher than the maximum value, the backlight of the display flashes and the value entered is replaced with the minimum or maximum value, or with...

  • Page 85: 5�11�- Expert Setup

    Computer SMART III When the high-voltage option is selected, the device will have some of its functions disabled. The disabled functions are:  The Plug&Play process cannot be carried out.  The AutoTest process cannot be carried out.  The leakage current is not measured and the related alarms cannot be enabled. Press the key to enter edit mode.

  • Page 86: 5�12�- Voltage Transformation Ratio

    Computer SMART III Press the key to access the next programming step If no keys are pressed for 5 minutes, the device switches to the simulation screen, “5.30.- SIMULATION SCREEN” 5�12�- VOLTAGE TRANSFORMATION RATIO In this point the primary and secondary value of the voltage transformer can be configured. Press the key to enter edit mode.

  • Page 87: 5�13�- Hysteresis

    Computer SMART III 5�13�- HYSTERESIS The L (inductive) and C (capacitive) hysteresis values of the target cos φ are specified in this section. As long as the cos φ is within this range, the device does not connect any paths, but it can disconnect them.

  • Page 88: 5�14�- Status Of The Stages

    Computer SMART III 5�14�- STATUS OF THE STAGES This parameter is repeated for each of the 6, 12 or 14 possible stages, offering the opportunity to force their status without paying attention to the operation performed by the actual device. , etc.

  • Page 89: 5�15�- Display

    Computer SMART III 5�15�- DISPLAY In this point the lighting status of the screen and its language can be configured. Press the key to enter edit mode. It is identified by the symbol and the flashing of the digits to be modified. The following display configuration options are available: : the display light is always on.

  • Page 90: 5�16�- Analogue Bar

    Computer SMART III 5�16�- ANALOGUE BAR In this point the parameter to be displayed in the analogue bar ( ) can be “4.4.3. ANALOGUE BAR” configured. Press the key to enter edit mode. It is identified by the symbol and the flashing of the digits to be modified.

  • Page 91: 5�18�- Undervoltage Trip

    Computer SMART III Press the key to enter edit mode. It is identified by the symbol and the flashing of the digits to be modified. key increases the digit value or shows the next option. key reduces the digit value or shows the next option. key skips to the previous parameter and the key skips to the next parameter.
  • Page 92 Computer SMART III Press the key to enter edit mode. It is identified by the symbol and the flashing of the digits to be modified. The voltage threshold is programmed as a percentage of the configured primary voltage’s value (“ 5.12.- ”).

  • Page 93: 5�19�- Communications

    Computer SMART III 5�19�- COMMUNICATIONS In this point the RS-485 communication parameters can be configured. Press the key to enter edit mode. It is identified by the symbol and the flashing of the digits to be modified. The parameters to be configured are: The peripheral number assigned, from 1 to 254.

  • Page 94: 5�20�- Clear

    Computer SMART III 5�20�- CLEAR In this point it is possible to configure whether or not to delete ( ) the maximum and minimum values, the energies and the number of connections of the stages. Press the key to enter edit mode. It is identified by the symbol and the flashing of the digits to be modified.

  • Page 95: 5�21�- Enabling Alarms

    Computer SMART III 5�21�- ENABLING ALARMS ); see This screen is repeated for every type of Error or Alarm (from In it the Table 10� enabling or disabling of each error or alarm can be configured, as can whether or not to associate it with the activation of a relay or a digital output.

  • Page 96: 5�22�- Voltage Alarms

    Computer SMART III 5�22�- VOLTAGE ALARMS In this point the phase-phase voltage thresholds above which the overvoltage alarm ( ) and the no voltage alarm ( ) should be triggered can be configured. Note: The alarm must be enabled ( “5.21.- ENABLING ALARMS”...

  • Page 97: 5�23�- Cos Φ Low Alarm

    Computer SMART III Press the key to access the next programming step. If no keys are pressed for 5 minutes, the device switches to the simulation screen, “5.30.- SIMULATION SCREEN” 5�23�- COS LOW ALARM φ In this point the lower limit for action of the cos φ alarm can be configured. It is activated every time the value of the cos drops below the configured value and the current is higher than programmed.

  • Page 98: 5�24�- Cos Φ High Alarm

    Computer SMART III If the value entered is lower than the minimum value or higher than the maximum value, the backlight of the display flashes and the value entered is replaced with the minimum or maximum value, or with the last value validated. Press the key to access the next programming step.

  • Page 99: 5�25�- Voltage Thd Alarm

    Computer SMART III φ Maximum value: 1.00 Minimum value: 0.50 If the value entered is lower than the minimum value or higher than the maximum value, the backlight of the display flashes and the value entered is replaced with the minimum or maximum value, or with the last value validated.

  • Page 100: 5�26�- Current X I Thd Alarm

    Computer SMART III In the No Connection status, the device does not connect the stages, but also does not disconnect them if the operation requires it. In the Disconnection status, it disconnects the stages and does not allow them to connect. key increases the digit value.
  • Page 101 Computer SMART III The value to be programmed in this alarm corresponds directly to the value of the total harmonic current to be considered as the setpoint. For example: If you want to program a setpoint value when exceeding a harmonic current of 200 A measured by the regulator, program 00200 directly in this section.

  • Page 102: 5�27�- Temperature Alarm

    Computer SMART III 5�27�- TEMPERATURE ALARM In this point the thresholds above which the temperature alarm ( ) is activated can be configured. Note: The alarm must be enabled ( “5.21.- ENABLING ALARMS” Press the key to enter edit mode. It is identified by the symbol and the flashing of the digits to be modified.

  • Page 103: 5�28�- Leakage Current Alarm

    Computer SMART III If the value entered is lower than the minimum value or higher than the maximum value, the backlight of the display flashes and the value entered is replaced with the minimum or maximum value, or with the last value validated. Press the key to access the next programming step.

  • Page 104: 5�29�- No� Of Operations Alarm

    Computer SMART III Press to validate the data; the symbol disappears from the display. Maximum value: 999 mA. Minimum value: 1 mA. If the value entered is lower than the minimum value or higher than the maximum value, the backlight of the display flashes and the value entered is replaced with the minimum or maximum value, or with the last value validated.

  • Page 105: 5�30�- Simulation Screen

    Computer SMART III Press the key to access the next programming step. If no keys are pressed for 5 minutes, the device switches to the simulation screen, “5.30.- SIMULATION SCREEN” 5�30�- SIMULATION SCREEN This screen can be accessed by pressing the key for more than 3 seconds, in order to exit the configuration status.

  • Page 106: 6�- Technical Features

    Computer SMART III 6.- TECHNICAL FEATURES AC power supply Computer SMART III 6 Computer SMART III 12 Computer SMART III 14 Rated voltage 100 ... 520 V 100 ... 520 V 100 ... 400 V Frequency 50 ... 60 Hz...
  • Page 107 Computer SMART III Relay outputs (Continuation) Electrical life 30x10 cycles Mechanical working life 5x10 cycles Digital inputs Quantity Type Potential-free contact Insulation optoisolated User interface Display Custom COG LCD Keypad Capacitive, 5 keys 4 LEDs Communications Field bus RS-485 Communication protocol Modbus RTU Baud rate 9600 - 19200...
  • Page 108 Computer SMART III Standards Safety requirements for electrical equipment for measurement, control UNE-EN 61010:2010 and laboratory use Electromagnetic compatibility (EMC) Part 6-2: Generic standards Immuni- UNE-EN 61000-6-2:2005 ty for industrial environments Electromagnetic compatibility (EMC) Part 6-4: Generic standards Emis- UNE-EN 61000-6-4:2005 sion standard for industrial environments Instruction Manual...

  • Page 109: 7�- Maintenance And Technical Service

    Computer SMART III 7.- MAINTENANCE AND TECHNICAL SERVICE In the case of any query in relation to device operation or malfunction, please contact the CIRCUTOR, SA Technical Support Service. Technical Assistance Service Vial Sant Jordi, s/n, 08232 - Viladecavalls (Barcelona) Tel: 902 449 459 ( España) / +34 937 452 919 (outside of Spain)

  • Page 110: 9�- Ce Certificate

    Computer SMART III 9.- CE CERTIFICATE Instruction Manual...
  • Page 111 Computer SMART III Instruction Manual...
  • Page 112 Computer SMART III Instruction Manual...
  • Page 113 Computer SMART III Instruction Manual...
  • Page 114 CIRCUTOR, SA Vial Sant Jordi, s/n 08232 -Viladecavalls (Barcelona) Tel.: (+34) 93 745 29 00 - Fax: (+34) 93 745 29 14 www.circutor.com central@circutor.com...

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