POWER FACTOR REGULATORS Instructions Manual
Contents
1. 7 3 4 NB HUNE SER ERI 7 3 5 REGULATOR STATUS AND KEY PUNC TIONS tonat 8 3 5 1 Key functionsan normal RUN SIGIUS s ui S 9 922 Key UP MAUS deo eren d n aw E a S 4 INSTAELEATIONAAND START UP etes uu gud cue 9 4 1 TECHNICAL C HAPACTERISTICS litere emacs er 9 OE VG 10 4 2 1 Meecha ea TST seats 10 4 2 2 CO 1911 Se IL DL m A c 10 4 2 3 Cabe SCCHLONS ONG DIOIOCIONS pete a e 11 4 2 4 YE ITA OTRO RR 11 S CONFIGURABLE PARAMETERS oria a 12 5 1 TAR GETO tet ton ete Rn Sater 12 9 2 SMALLER AVAILABLE CAPACITOR STBP Ses ede oe cec peus ves dee A 12 5 3 COKTPAPANIETERCADCUIDATION d ce cenae dee au2. 13 5 4 STAGE S CONFIGURATION OF PF CORRECTION EQUIPMENT CONFIGURATION 13 5 5 CONNECTION AND RE CONNECTION TIME SETTINGS ccccsceccecceccscesceccecceccscsceccscescsceccecescescescecescescescecens 13 5 6 SELECTION OF THE NUMBER OP STAGES Sad ios ved 14 5 7 NODPITASEOSNGIBE emet cuir eir tac codo 14 5 8 PROGRAMMING THE RATED CURRENT PRIMARY 0 1 1 11 14 6 22 59 555 14 6 1 HOW TO ACCESS THE SET UP MENU D CUL dL ocu ES dU EE cates 14 6 2 NAVIGATION a MI DU Se eee 15 TO OS DIU M 16 7 1 FUNCTIONS OF THE DEVICE IN NORMAL RUN 0 0 000000 16 7 2 MCEXXADV BEHAVIOUR IN ALARM MODE cscescscecceccececccecescscesescuccscucescscescscescscscscesesctsescesescusescs 17 MAINTENANCE cet eos a deos s LA 17 2245 s deu s eeu rosa 1
3. 4 4 216253 1 C9 S 4 e e N NIOO e e OJN DS AI X x 0 05 0 07 0 14 14 e 009 EN NEN REN 009 0 11 007 0 09 005 006 2 e NOTE For supply voltages other than 400V the factor obtained from the table must be multiplied by the ratio 400 i Vsupply IMPORTANT If C K is adjusted too low the system will connect and disconnect steps with a lower threshold and therefore the number of operations to control the average PF will be higher If C K is adjusted slightly above the required value 10 the system will react with higher threshold values and therefore the number of operations to control the average PF will be lower Wear of PF compensation is also lower 245 Controllers MCEOGADV MCE12ADV 5 3 C K parameter calculation For conditions other than those given in table 5 1 the parameter C K can be calculated as follows The necessary data to perform the calculation are The power of the smaller capacitor step the supply voltage
4. V and the current transformer ratio K K L n I prim Where em is the CT primary rated current i e in a 250 5 CT the primary rated current is 250A I is the CT secondary rated current usually Then the smaller step reactive current can be calculated as 9 Ic Q and the C K parameter would be C K J3 KV Example Assume a PF equipment at 500V where the smaller capacitor is rated to 60kvar and the CT has a ratio 500 5 The calculation would be as follows K ratio 500 5 100 omaller capacitor current A 60 1000 _ 69 284 3 500 C K parameter 0 69 100 5 4 Stage s Configuration of PF correction equipment Configuration program To set up this parameter use the keys D Q until the cursor P points to the option Prog then push PF correction equipment is constituted by several capacitor stages which may have different power ratings Taking as base the power of the smaller capacitor stage the powers of the rest of stages can be given in terms of multiples of the smaller step Then we could state the configuration configuration program of PF equipment as Program 1 1 1 All the stages have the same power in kvar Program 1 2 2 The second stage and successive have a power double than the 1st step The available programs of MCExxADV regulator are listed in table 5 2 The default factory setting of MCExxADV devices is 1 1 1 1 Table 5 2 Available
5. 1 3 4 Four quadrant regulators This term is used to describe the regulators which are able to perform measure and control either if the active power flows from the utility to the customer network the common case of a consuming facility or if it lows in the reverse sense The later is the case of facilities containing power generation equipment which export some amount of generated power to the utility 1 3 2 FCP program FAST Computerized Program The units having FCP program control the switching of capacitor stages in order to minimize the number of switching operations to reach the required PF compensation Moreover the program assigns the capacitor stages to be connected or disconnected using a FIFO criterion FIFO First IN first OUT that way the times of use of all stages are equalized 1 3 3 Stages and steps We must distinguish between these two terms In this manual we call STAGE to each of the capacitor groups that constitute the PF correction unit The capacitor stages in PF correction equipment may have all the same power or not as explained in the following paragraphs The term STEP is used to describe the minimum fraction of reactive power in which the PF correction equipment is divided Usually this is the power of the lower stage 1 3 4 Stages ratio program Powers of successive capacitor stages in PF correction equipment generally follow certain patterns called stages ratio program or simply Program The stages pr
6. Easy panel mounting without the need of tools Front frame size 144 x 144 mm according to DIN 43 700 panel hole 138 x 138 mm Measurement and power supply in one single input Four quadrant regulation suitable for installations importing or exporting energy Lagging Inductive 90 Lagging Inductive KW KW kVAr kVAr Cos 180 09 KW KW kVAr kVAr Coso Coso Leading Capacitive 909 Leading Capacitive Exported Power Imported Power Fig 2 1 Power signs in four quadrants measurements 5 Controllers MCEOGADV MCE12ADV FRONT PANEL SCREEN AND KEYBOARD The PF regulator s front panel shows the following items Front Screen Fig 3 1 Front cover and screen NOTE The set up procedure the description of different parameters and the different control modes are described in detail in the SET UP section section 6 Controllers MCEO6ADV MCE12ADV 31 Display screen MCExxADV devices are equipped with a 3 digits x 7 segments LCD screen The screen has also a set of icons which provide information about the regulator status The main indications are value reactive power sign 7 for lagging or inductive PF and for leading or capacitive PF connected stages and measurement of different parameters see section 3 2 Screen LED icons Indications C7 C8 C9 C10 Cii C12 i In normal working co
7. 7 Controllers MCEO6ADV MCE12ADV 1 INTRODUCTION AND SAFETY RECOMMENDATIONS INTERNATIONAL CAPACITORS S A would like to thank you for showing your trust by choosing one of our MCExxADV series regulators These units are constructed with the latest state of the art technology including a powerful processor to calculate the optimum algorithms for achieving the best compensation of cosqQ The units comply with the Electrical Safety Standard EN 61010 in accordance with the requirements of the Low Voltage Directive LVD 73 23 EC and EMC Directive 2004 108 EC and therefore they are certified to carry the CE mark This user manual describes the operation of the MCEXxADV series regulators and shows the user the procedures required to install commission and operate the units SAFETY The installation and maintenance of the unit must be performed by duly trained and authorised staff and in accordance with the national and international standards Any inappropriate manipulation or use of this equipment out of the conditions specified by the manufacturer may involve serious dangers to the user Before performing any maintenance operation on the controller and associated PF compensation equipment be sure to disconnect the main switch After disconnecting the switch wait at least 5 minutes to ensure that the capacitors are totally discharged DANGER During the installation maintenance or commissioning of equipment regulated by a M
8. CExxADV unit the following safety precautions must be observed v Before connecting the equipment make sure that the earth terminals have been properly connected A defective earth connection may cause a wrong operation of equipment and involves a danger of electric shock to the user or system operator v Maintenance must be performed taking the necessary precautions to avoid electrocution and electric shock Ensure that the unit has been disconnected and wait the necessary time to ensure that the capacitors are totally discharged before any maintenance action We recommend the use of safety goggles and gloves when cabinet doors are open and protection covers removed v f a PF compensation unit is connected to mains and capacitors are accidentally connected without load a resonance may occur In such condition voltage harmonics may be amplified cause overvoltage and damage the compensation unit and other equipment connected to the mains v The start up and interruption procedures indicated in the manual must be followed to avoid damaging the PF equipment and or other equipment connected to mains v The adjustment or replacement of components or parts of the unit must be made with original replacement parts and in accordance with the procedures described in the corresponding instruction manual 1 1 Delivery spot check After unpacking the equipment check the following points Check that equipment has not suffered any damage during transpor
9. K K setting Push x uoce en Long sf Short Poan soting Push Ah TEELT digit RUN Measurement Next digit Nr of stages mk CT phase N Hi 4 2 Measurement A IS change 9 i Short CT phase seting e RUN 9 Measurement M Increase Next digit primary a current setting Initial screen IMPORTANT While the device is in set up mode if there isn t any key pushing for more than 3 minutes the device returns automatically to normal RUN mode and none of the previously edited parameters are changed nor saved To exit the set up menu changing the edited parameters push the key for more than 15 15 Controllers MCEO6ADV MCE12ADV 7 RUN STATUS Once the device has been configured according to installation needs it can be set to RUN mode to regulate the PF of the installation RUN mode is the default mode after exiting the set up menu or after the device start supply connection followed by a short initialisation period When the device is in RUN mode it can reach one of the following status a Normal RUN status Absence of alarm In this status the device performs the automatic PF regulation connecting and disconnecting the capacitor stages according to installation needs In this status the user can access to the measurement of different parameters and can also force the manual connection or disconnec
10. Lifasa 47 REACTIVE POWER SOLUTIONS POWER FACTOR REGULATORS MCEO6ADV MCE12ADV Instructions Manual Controllers MCEO6ADV MCE12ADV Controllers MCE06ADV MCE12ADV Index 1 INTRODUCTION AND SAFETY RECOMMENDA TIONS ccccccccsccccccccccccccccccccccccccccccccccccccccceecs 3 1 1 DELNERY POT tesa d EER ON tata d ae 3 1 2 SEABTING SCREEN i hae D SEE aA A M cea 4 1 3 BE FINITION adesse rM Lud eM ats ct ern SEM SUD DA CES 4 1 3 1 ROUr Tegel OR o eee eue qus 4 1 3 2 FCP program FAST Computerized Programi diede A ELSE 4 1 3 3 ETAPA 4 1 3 4 THO DEO PO 4 2 GENERAL CHARA PERES PIGS 5 FRONT PANEL SCREEN AND 6 3 SCREEN RUM RE MM M AMA A RU E CMM A a RUE 7 3 2 MEASUPED PARAMETERS eM cM cse 7 3 3 ERRORS AND ERROR MESSAGBS
11. Screen 2 Output Relay contacts Working voltage 250 VCA Admissible current 10 A 1 Controllers MCE06ADV MCE12ADV 42 DEVICE INSTALLATION 4 2 1 Mechanical Installation Mechanically the device is intended to be mounted attached to the front door of the cabinet The fitting hole must be according to DIN 43 700 dimensions 138 x138 mm 4 2 2 Connections Before connecting the supply to the device check the following items The installation and maintenance of the device must be carried out by specialised and dully trained staff according to National Electric Codes and Rules and International Standards All the connections must be at the inner part of a protection cabinet Notice that when the device is connected to supply the voltage at certain terminals can be hazardous and cause electric shock in case of contact Opening the electrical cabinet or removing certain covers can compromise the user safety and should only be done by qualified and authorized staff The MCExxADV devices are used together with capacitor banks which can remain charged after supply disconnection In order to avoid shock hazard wait during 5 minutes after supply disconnection before any manipulation inside the equipment cabinet MCExxADV devices require current sensing of the installation A current transformer CT must be installed externally to perform this function Usually the current ratio of the CT is In 5 A where In must b
12. The main technical characteristics of every particular MCExxADV and MCExxADV device are printed in the rear label see fig 1 2 and are also summarized in the following table 480 400 230 o 110 15 10 45 65 Hz see label voltage Terminals C D Connect preferably to phases L2 L3 Current measurement circuit External Current Transformer CT Current ratio In 5 To be placed Terminals A B preferably in phase L1 Cables for the current Minimum cross section 2 5mm If cable length between regulator measurement circuit CT and CT must exceed 25m increase the cross section by 1 every secondary side 10m or use a CT with a higher primary rated current 6 VA all relays OFF 9 5VA 12 relays ON output circuit breaker 6A curve C or fuse 6A gl type the highest number relay is by default configured as alarm relay Foeronce standards 0 EN 61010 EN 61000 3 2 EN 61000 3 3 EN 50081 2 EN 50082 1 Reference standards EN 50082 2 EN 61000 4 2 EN 61000 4 4 EN 61000 4 8 EN 61000 4 5 EN 61000 4 11 UL 94 Installation Category 11 Protection against electrical shock with double insulation class according to EN 61010 1 IP51 device mounted in panel front IP30 device case according to EN 60529 Environment admissible Temperature 20 C 60 C Relative humidity max 95 without conditions condensation Max altitude 2000m Control system FCP Program which minimizes the number of operations
13. c meaning that the kvar ratio of such stages with regard to first stage are equal twice four times etc 2 GENERAL CHARACTERISTICS The power factor regulators of types MCEOGADV and MCE12ADV measure the cos sometimes called Displacement Power Factor DPF in a supply network and control the connection and disconnection of power capacitors in order to regulate such parameter The difference between the two types is the number of output relays which determines the number of stages that they can control Maximum Nr of output relays ADV MCEOGADV 6 relay outputs MCE12ADV 12 relay outputs Among the most important features of this PF regulator series we can stand out the following FCP regulation system which minimizes the number of switching operations Wide choice of switching programs 1 1 1 1 2 2 1 2 4 1 1 2 2 etc which allows the split up of the total power into up to 31 steps in MCEO6ADV or up to 79 steps in MCE12ADV Four quadrants control see fig 2 1 display of the connected stages of cosq and active and reactive power signs inductive or capacitive LCD display screen with three seven segments characters plus 20 icons to sign up the different possible working conditions Regulator set up with only three keys and without disconnecting the device from the supply Multiple supply frequency range either 50 or 60Hz Main electrical parameters displayed during RUN mode
14. configuration programs for MCExxADV devices Screen Indication Stage s configuration 5 5 Connection and re connection time settings To set up this parameter use the keys D Q until the cursor P points to the option Delay then push This parameter sets up the delay times of the device The setting value Tc is the delay time between the connection or disconnection of successive capacitor stages The parameter also sets up the called re connection delay Tr which is the minimum time that must elapse between the disconnection of a C stage and its following connection The range of Tc settings goes from 4s to999s Tr is automatically set to 5 times Tc Notice that Tr is needed to guarantee the capacitors discharge The default setting of Tc is 10s 2353 Controllers MCEO6ADV MCE12ADV 5 6 Selection of the number of stages To set up this parameter use the keys 9 until the cursor points to the option Steps then push This setting allows the selection of the number of stages of the PF compensation equipment Depending on the device type MCEOGADV or MCE12ADV we can select up to 6 or 12 stages If the number of stages is less than 6 or 12 respectively in MCEO6ADV or MCE12ADV the relay number 6 or 12 is automatically assigned as alarm relay see paragraph 3 3 5 7 Vl phase angle setting To set up this parameter use the keys 9 until the cursor points to the option Phase then push During the set up of this parame
15. e at least 1 5 times the maximum expected load current The CT must be installed at the incoming supply line point of coupling of the user so that it measures the total current of all the loads including also the compensation capacitor bank see fig 4 1 The CT should be installed preferably in phase L1 while the voltage measuring terminals of MCExxADV should be connected to phases L2 and L3 see schematics in figs 4 2 and 4 3 It s important to respect the connection senses of P1 P2 and 51 52 shown in the above mentioned figs otherwise the phase difference will have to be corrected by adjusting the device according to set up procedure indicated in paragraph 5 17 RIGHT CONNECTION WRONG CONNECTIONS P1 is TC 2 52 LOAD CAPACITORS LOAD CAPACITORS LOAD CAPACITORS The CT measures the whole If CT is placed in this position If CT is placed in this position current of loads capacitor NONE of the CAPACITOR ALL THE CAPACITOR STAGES bank STAGES WILL CONNECT WILL CONNECT In case of malfunction check The equipment does not regulate WARNING This situation may that the CT is not shortcircuited properly cause overcompensation resonance and overcurrent Fig 4 1 Placement of current transformer CT 10 Controllers MCEO06ADV MCE12ADV 4 2 3 Cabling cross sections and protections The supply circuit must be protected by means of fuses or a circuit breaker sized between 0 5 and 2A Recommended fuses are gl ty
16. e causes C K not properly adjusted controller demands for All the relays will remain connected except the alarm relay stages connection and they if exists see paragraph 3 3 are all connected Overcurent The measured Possible causes C K not properly adjusted current is 2096 above the Alarm relay if exists disconnects see paragraph 3 3 rated current primary of CT Although the regulation may be wrong the device tries to regulate the PF normally Overvoltage The measured Possible causes Connection to a wrong supply voltage voltage is 1596 above rated Alarm relay if exists disconnects see paragraph 3 3 voltage Although the regulation may be wrong the device tries to regulate the PF normally 8 MAINTENANCE The MCExxADV do not require a special maintenance program In case that some adjustments or maintenance might be necessary it must be performed by dully qualified staff and respecting the required safety procedures If any malfunction of the PF compensation equipment or associated protections is detected the equipment should be disconnected from mains Before performing any maintenance repair or update operation on the controller or associated PF compensation equipment be sure to disconnect the main switch and after disconnecting the switch wait at least 5 minutes to ensure that the capacitors are totally discharged 9 TECHNICAL SERVICE In case of any doubt on the behaviour of the device or in ca
17. ercompensation The regulator detects that some stages should be gt disconnected but all the stages are already disconnected Under compensation The regulator detects that some stages should be connected and all the stages are already connected C7 C8 CO C10 Ct C12 gt Overcurrent The measured current exceeds the rated current by a 20 S I im Rated current is considered to be the CT primary rated current 3 4 Alarm relay In case that the number of stages configured in a MCEOGADV or MCE12ADV is less than 6 or 12 respectively the relay number 6 or 12 is automatically configured as alarm relay The relay remains connected in absence of alarm positive safety and disconnects in case that one or more of the errors listed in section 3 2 occur Notice that the absence of supply voltage will always be detected as an alarm condition The alarm relay has a delay of 10s in case of Over compensation and Under compensation but the operation is instantaneous delay 1s in case of Over voltage and Over current Controllers MCEO6ADV MCE12ADV 3 5 Regulator status and key functions MCExxADV regulators have two possible status Normal or RUN Status This is the normal working status of the regulator In such status the device measures and displays the of the loads and automatically regulates the connection and disconnection of capacitors in order to compensate according to programmed target value The regulati
18. llows a rated primary current up to 9990A By default the secondary of CT is assumed to be 5A 6 SET UP MENU AND PROCEDURE 6 1 How to access the set up menu To access the set up menu press the key for more than 1s This is designated as long push in table 6 1 which gives a summary of the set up procedure The pointer starts blinking and points to the parameter to be adjusted Select the parameter by means of the keys After the long push and in case that all the capacitor stages are disconnected the device jumps to the set up status In case that there are some stages connected keep the key pushed while the regulator disconnects the connected stages sequentially and respecting the programmed delay time Once all the stages have been disconnected the device enters the set up status and allows the adjustment of the different parameters A schematic diagram of the set up menu showing the different navigation paths is shown in table 6 1 The meanings of the different adjustable parameters have been explained in paragraph 5 1 14 Controllers MCE06ADV MCE12ADV 6 2 Navigation schematic Tabla 6 1 Menu navigation schematic Parameter Device screen display see selection paragraph Long push to start set up Long bel o Increase 2 COS RUN gt 100 44 5 nn 2 tarting screen TOME UNE NT Next an digit Long H e fio COS Push ig Pins RUN e Measurement Long gt CI
19. nditions RUN LED red is ON and gt cursor points to the parameter being displayed Left column list E The RUN LED is 02 3 es 9 In SET UP mode the RUN LED is Lagging or inductive power indication 4 dF Leading or capacitive power indication 4 normal working conditions OFF the cursor is blinking and The x10 Ip LED shows Run Q pointing to the parameter being that the reading of current or configured Right column list max current has to be x10 Ip M Symbols indicating the stages multiplied by 10 which are connected only in RUN mode 3 2 Measured parameters When the instrument is in normal RUN mode the following parameters can be displayed cos mains current THD of both mains current and mains voltage The instrument can also display the maximum values of mains current and voltage since the last parameters clear The parameter being displayed can be selected with the navigation keys and is indicated by the gt cursor 3 3 Errors and ERROR messages In case that the regulator detects a possible error the front screen shows an error code The possible error codes are listed and explained in table 3 1 Table 3 1 Possible errors and messages displayed on the screen ERROR Description message Load current below the threshold current or current transformer CT not connected The threshold is 0 1A at the secondary side of CT dd Ov
20. ogram indicates the relationship between the different capacitor stage powers Most common stages ratio programs are the as follows Program 1 1 1 All capacitor stages have the same rated power kvar For instance a 5 stage unit of 100 kvar would be formed by 5 equal stages of 20 kvar and would be described as a unit of 5 x 20 kvar Controllers MCE12ADV Program 1 2 2 All capacitor stages from the second and up have a rated power kvar which is twice the rated power of first stage For instance a 5 stage unit of 180 kvar would be formed by a first stage of 20 kvar and 4 equal stages of 40 and would be described as a unit of 20 4 x 40 kvar Program 1 2 4 The rated power of the second stage is twice the rated power of the first stage and the rated power of third stage and up is 4 times the power of the first stage For instance a 5 stage unit of 300 kvar would be formed by a first stage of 20 kvar a second stage of 40 kvar and 3 equal stages of 80 kvar and would be described as a unit of 20 40 3 x 80 kvar Other switching programs Other switching programs are also commonly available like 1 2 2 4 or 1 1 2 2 etc Abbreviated designation form as can be deduced from previous cases consists of a sequence of numbers giving the relationship between the different stage powers kvar and the first stage power which value is taken as unit 1 The successive stages will be designated by 1 or 2 or 4 et
21. on depends on several parameters configured during the starting set up process Set up or adjustment status This status allows the configuration of the device Push the key for a time 15 to enter the set up status mode This will stop the automatic PF regulation will cause the progressive disconnection of connected stages and once disconnected will allow the set up of the regulator Key to enter set up mode After a long push 1s of this key the device will enter the set up mode and will accept configuration changes Manual connection of capacitor stages If this key is pushed for more than 1s the regulator starts connecting new steps in a sequential mode respecting the adjusted connection times ton Manual disconnection of capacitor stages If this key is pushed for more than 1s the regulator starts disconnecting steps in a sequential mode respecting the adjusted disconnection times 3 5 2 Key functions in SET UP status Long Push gt 1s This is to initiate or exit the set up mode Exiting the set up mode with a long push gt 1s will automatically save the changed parameters Exiting with a short push will not save the changes Long Push lt 1s This is used to initiate or exit the different set up sub menu options different configurable parameters Warning The new programmed values are not saved unless a long push of this key gt 15 is used to exit the set up menu Upwards navigation in the menu opti
22. ons available in the set up menu Increment of numerical values inside the set up sub menus Downwards navigation in the menu options available in the set up menu Decrement of numerical values inside the set up sub menus Change the digit to be edited in case of numerical values with more than one digit Controllers MCE06ADV MCE12ADV 4 INSTALLATION AND START UP This section contains information instructions and warnings that the user must follow by its own security and to ensure safe operation of the device WARNING MCExxADV regulators are usually connected to equipment containing capacitors which remain charged after removing supply voltage To avoid risk of electric shock you must wait at least 5 minutes between the disconnection of the equipment and handling of the internal components thereof Any handling or use of equipment in different way or conditions to that specified by the manufacturer may compromise the user safety In case that some damage or deterioration signs are detected in the device or a wrong operation is observed disconnect the supply voltage and contact INTERNATIONAL CAPACITORS S A authorized technical service To safely use the MCExxADV and MCExxADV it is important that people installing it or handling it follow the usual safety precautions stated in the LV or MV Electrical Code Rules of each Country as well as the different warnings stated in this instruction manual 4 1 Technical Characteristics
23. pe IEC 269 or M type 127 A main circuit breaker must be provided in order to allow the disconnection of control circuits from supply controller relays contactor coils etc The main switch must be easily accessible The cabling cross section must be minimum 1 5mm for the voltage supply and for the relay outputs and 2 5mm for the cables connecting secondary of CT to MCExxADV For distances between CT and controler higher than 10m the cross section of the last must be increased at a rate of 1 extra every 10m 4 2 4 Schematics MCEO6ADV SUPPLY AND MEASURE TERMINALS Terminals functions Current input 51 Current input S2 Relays common Relay Output 1 Relay Output 2 Relay Output 3 Relay Output 4 Relay Output 5 Relay Output 6 Supply Measure Input OV Supply Measure Input lt Fig 4 2 Connection schematic for MCEO6ADV Rated voltage depending on type See device label MCE12ADV SUPPLY AND MEASURE TERMINALS C D 0 V IO Terminals description Current input S1 Current input S2 Relays common Relay Output 1 Relay Output 2 Relay Output 3 Relay Output 4 Relay Output 5 Relay Output 6 Relay Output 7 Relay Output 8 Relay Output 9 Relay Output 10 Relay Output 11 Relay Output 12 Supply Measure Input OV COM 7 8 9 10 11 12 Supply Measure Input lt Fig 4 3 Connection schematic fo
24. plied by the smaller capacitor step measured at the secondary side of the current transformer CT Therefore the setting value depends on the power of the smaller capacitor step on the CT ratio and on the supply voltage Table 5 1 gives the setting values of C K for a 400V phase to phase supply for different CT ratios and different values of smaller capacitor step kvar For conditions other than those given in table 5 1 the paragraph 5 13 shows a simple calculation to obtain the C K value See also foot NOTE Table 5 1 C K factor according to smaller capacitor power and CT ratio i Smaller capacitor power in kvar at 400V pi Is e e mes e e e D gt and ee Jo 3 Co P on AJIN 5 AJN e No NS PIP P S 4 PIP P S gt Co Co 5 No Co I NS 4 co PIP S No Co I C1 w N O NO PIP P S 4 on W 4 AIN e nN on e NS D e oo C Oo on D co NJN toll e 5
25. r MCE12ADV Rated voltage depending on type See device label WARNING For MCE12ADV devices 12 relay outputs the connection between COM terminals in the upper and lower terminal strips must be done externally 247 Controllers MCEO6ADV MCE12ADV 5 CONFIGURABLE PARAMETERS In order to adapt the regulator to the loads certain parameters of the MCExxADV must be set up The programmable parameters the required settings and the set up procedure are explained here below See also paragraph 3 5 2 to see how to select the different menu options The configurable parameters are listed and shortly explained below 5 1 Target To set up this parameter use the keys Q until the cursor P points to the option then push The parameter allows the setting of the desired PF in the installation The regulator will control the connection of the necessary number of capacitors to get the maximum approach to the target value Since the regulation is in a stepwise mode the regulator will add a new step when the demanded power is at least 70 of the lower available step power and will remove a step when the excess is also a 70 of the lower available step power The adjustment range is from 0 85 inductive to 0 95 capacitive 5 2 Smaller available capacitor step To set up this parameter use the keys 9 until the cursor points to the option then push This parameter named C K indicates the reactive current sup
26. rent since the last clear V MAX Maximum value of mains voltage since the last clear The displayed parameter is pointed by the cursor gt Parameters measurement Performing successive short pushing of this key 1s the user can travel through the readings of the same parameters described above but in reverse order Start the SET UP mode Performing a long push of this key 1s the device jumps to set up mode Clear MAX values Performing a long push of this key lt 1s while the cursor P is pointing to MAX the MCExxADV clears the maximum values of voltage and current recorded since the last clear 16 Controllers MCEO6ADV MCE12ADV 7 2 MCExxADV behaviour in ALARM mode In case that the MCExxADV detects an error during normal operation see paragraph 3 2 the screen displays an error code and the behaviour of the device is as described in table 7 1 Table 7 1 MCExxADV behaviour under ALARM conditions Description Possible cause behaviour Measured current below Posible causes Baja carga o TC no conectado threshold 0 1 measured at El aparato muestra el LED de RUN y la pantalla con todo the secondary side of CT ceros parpadeando y no conecta ning n rel Over compensation The Possible causes C K not properly adjusted controller demands for None ofthe realys will connect stages disconnection and they are all disconnected Sub compensation Possibl
27. se of malfunction which cannot be solved by the maintenance staff contact INTERNATIONAL CAPACITORS S A technical service INTERNATIONAL CAPACITORS S A Vall s 32 Pol Ind Can Bernades 08130 Santa Perpetua de Mogoda Barcelona SPAIN Tel 34 935 747 017 Fax 34 935 448 433 E mail info lifasa com Web www lifasa com 247
28. t he equipment corresponds to type you ordered See label at the rear face fig 1 1 Check that the characteristics in the label are suitable for the site where the regulator has to be installed Supply voltage and frequency measuring range etc Follow the instructions in section for installation and set up f you may observe any anomaly during the installation or set up contact with INTERNATIONAL CAPACITORS S A technical service Controllers MCEO6ADV MCE12ADV 7 ij diim a T BUPPLY Terminals available only for MCE12ADV 12 relays Number of outputs indication depending on type JF MCEOGADV relays MCE12ADV 12 relays cou 7 8 9 10 1112 ire J Supply and measuring voltage V her 5 Model MCE12ADV Frequency either 50 or 60Hz Power Supply 400Vac 50 60Hz 8 5VA Measure L1 5A LZ L3 400Vac Relay Out 250 Vac Output relays characteristics Serial no gt Fig 1 1 Rear face label 1 2 Starting screen C8 C9 C10 cig D 4 jd P When the MCExxADV is started just after supply connection the screen shows ppl T a code indicating the device version It s important to indicate this code in case cr 2 Ce cs 08 of reporting any device fault or error 1 3 Definitions In this section we shall give several definitions which will be useful to understand several sections of this manual
29. ter the screen shows alternatively one of the options T1 to T6 and the COSQ This parameter permits the adaptation of the regulator to different options of connection of voltage and current measurement in the three phase system The default assumed connection is the one shown in figs 4 2 and 4 3 i e the current transformer placed in phase L1 and voltage measurement between phases L2 terminal C and L3 terminal D Sometimes it s difficult to guarantee this connection or even check how it is To adapt to this unknown situations the MCExxADV devices allow the selection of different options T1 to T6 as shown in table 5 3 To select the right option during start up you should verify that there is load and that the loads are mainly inductive with a cose between 0 7 y 1 In this situation try the different options until the cose screen shows a value between 0 7 and 1 Table 5 3 Phase shift options in MCExxADV V I phase shift at V measured in phases placed phase Screen be Es T5 90 342 L Pi P2orSi S2revesed _ 5 8 Programming the CT rated current primary The set up of this parameter can be selected at the bottom of the menu options Use the 9 keys until the bottom red LED x10 Op is flashing and push The display will show the assumed CT primary current Set the value according to the CT used to measure installation current The adjustment range is from to 999 and with the x10 option a
30. tion of capacitor stages as described in paragraph 7 1 b Alarm status If any of the anomalous situations described in paragraph 3 2 occur the device jumps to alarm status and displays the error code Depending on the error type the regulator may perform the disconnection of all the stages or continue regulating the PF as in normal RUN 7 1 Functions of the device in normal RUN mode In the normal RUN mode the MCExxADV can perform the following functions Manual connection of capacitor stages Keep the key pushed during more than 1s and the regulator will sequentially connect the different steps following the normal program and respecting the delay time tn set in the set up procedure Manual disconnection of capacitor stages Keep the key pushed during more than 1s and the regulator will sequentially disconnect the different steps following the normal program and respecting the delay time t5 set in the set up procedure Displaying the number of connected steps If both keys are simultaneously pushed the device displays the Nr of connected steps Remember the difference between step and stage described in paragraph 1 1 Parameters measurement Performing successive short pushing of this key 1s the user can travel along several display screens showing the values of the following parameters cos cosinus of the installation 1 mains current THD THD of mains current V Mains voltage MAX Maximum value of mains cur
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