APPARECCHIATURE AUTOMATICHE DI RIFASAMENTO MANUALE OPERATIVO D INSTALLAZIONE USO E MANUTENZIONE

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1 APPARCCHIATUR AUTOMATICH DI RIFASAMTO MAUAL OPRATIVO D ISTALLAZIO USO MAUTZIO AUTOMATIC POWR FACTOR CORRCTIO QUIPMT OPRATIG AD ISTALLATIO MAUAL US AD MAITAC Italfarad S.p.A. Via IV ovembre n Minerbio Bologna Italy Tel Fax mail: italfarad@italfarad.com Web:

2 2 Italfarad S.p.A. Via IV ovembre n Minerbio Bologna Italy Tel Fax mail: Web:

3 Index Page General remarks 13 Connec!on to the network 13 Start and use 13 Control of the automa!c opera!on 14 Maintenance 14 Connec!on diagram 15 CT Connec!on place 15 Power factor controller PFC96evo 16 Power factor controller PFC144evo 19 Maintenance log General remarks The automac power factor correcon equipments type PF are used to keep the power factor to an average value higher than an expected one. The regulaon is obtained by means of a suitable electronic regulator of reacve power with high sensibility and precision. The equipment consist of capacitors banks which are connected and disconnected automacally, depending on the reacve power required by the load, by mean of special contactors. The capacitors are single phase or three phase type, provided with discharge resistors and overpressure safety device, in compliance with the IC Standards. The enclosure is of steel cabinet, painted with epoxy resins with minimum protecon degree IP Connecon to the network The three phases of the network must be connected respecvely to R (L1), S (L2) and T (L3) terminals onto the main switch. For earthing the bar on the right side of the equipment, or the earth terminal, must be used. Terminals K (S1) and L (S2) must be connected to the secondary of a Current Transformer (CT) with secondary current 5A connected on the phase R (L1) (see Fig.1). In order to work properly the equipment must be connected as indicated in Fig.1; on the same page some typical connecon mistakes are shown. 3 Start and use ATTTIO! Before switching to the equipment on, check the correct ghtening of all the connecons. Repeat this operaon periodically. At the first switch on, the controller will show the indica on Ct. Press + and - (controller type PFC) or and (controller type PFCevo) to set the value of the primary current of the CT. Press manual/automa c bu#on to validate the value. If regulator is correcty installed the equipment connects and disconnects automa cally the capacitor banks according to the load varia on; in this case the number of banks connected is evidence by the leds STP on the regulator. If during the first installa on, the regulator of reac ve power would show a capaci ve load and no banks have been connected, the CT has been installed on the wrong phase (see fig. 1 and 2). In order to avoid that the limits of overtemperature are passed inside the cabinet, the reac ve power regulator starts the fan when temperature is higher than the threshold. If the temperature inside the cabinet, in spite of the cooling due to the fan opera on, reaches 50 C, all the banks are disconnected and a remote signal alarm is ac vated. In the equipments which are equipped with SPC2 device, the ven la on and the alarm signal are generated by SPC2. ATTTIO! Using the manual control please wait at least 1 minute before connecng the same bank again. Italfarad S.p.A. Via IV ovembre n Minerbio Bologna Italy Tel Fax mail: italfarad@italfarad.com Web: 13

4 4. Control of the automac operaon The check of the correct operaon of the automac regulator can be effected by modifying the load condions in a suitable way. If the operaon is not correct the reason should be founded among one of the following errors: CT connected on the wrong phase (see Fig.2). CT installed between the equipment and the load (see Fig.2). CT inserted on the supply cables of the power factor correcon equipment (see Fig.2). Defecve or unsuitable CT. 5.1 Connecon in installaon provided with power generator (PV or co-generator) Before carry out the verificaon in accordance with point 5, it is necessary to follow the following indicaons: 1. change the se#ng parameters: For controller type PFC, P12 parameter, set Dir or Inv (the value which give the correct measurement of the Power Factor). For controller type PFCevo, P04 parameter, set Dir or Inv (the value which give the correct measurement of the Power Factor). 2. switch off the power generator unl the verificaon of the PFC equipment has been completed. 3. A$er the compleon of the PFC equipment verificaon, the power generator can be switched on. 5. Maintenance Periodical check must be carried out on: Current drawn by every single step, in order to keep the operang condions of the equipment always under control. All electronic parts (reacve power regulator and protecon module, if present) in order to check their efficiency. Protecon fuses on the auxiliary circuits. Protecon fuses on the capacitor banks (provided with signal). The efficiency of the coolong system, checking that the fans are not defecve or mechanically blocked and cleaning with an air jet the relevamt grilles. The efficiency of the contactors, by replacing those which are defecve and periodically checking the ghtening of the terminals. The presence of capacitors with overpressure device tripped (these single phase units must be replaced to do not jeopardize the performance of the complete equipment). This last check is parcularly important for.../a and../ha where checking that the tuning frequency of the filter does not change in the me, is basical; even using high quality components, it can occur that some capacitor fails causing the trip of the overpressure safety device. The consequent loss of capacitance may cause a change of the tuning frequency of the filter with consequent dangerous overloads. In view of the above, a periodical test has to be carried out to check the presence of capacitors with tripped overpressure device (these have an expansion of the upper part of the case) replacing them with new capacitors. In order to prevent possible reducon of the original capacitance values (this phenomena can involve more than a capacitor) it is useful to check during the installaon, a$er the first month of operaon and then two or three me a year, the current adsorbed by the banks, connecng them manually with no load condion and taking note of the results on the maintenance form. Big differences in measures or eventual unbalances of the three phases show the need of a special maintenance. ATTTIO! Further to the check of the correct thighteing af all the connec"on, periodically clean the equipment inside by removing possible dust not compa"ble with the good opera"on of the equipment. 14 Italfarad S.p.A. Via IV ovembre n Minerbio Bologna Italy Tel Fax mail: italfarad@italfarad.com Web:

5 Italfarad S.p.A. Via IV ovembre n Minerbio Bologna Italy Tel Fax mail: Web: 15

6 Power Factor Controller PFC96evo Front keyboard Key - Used to select among available measurements. Used also to access programming menus. keys - Used to set values and to select steps. key - Used to select opera!ng between manual and automa!c. Manual Main display Bar graph Secondary display Induc!ve / capaci!ve Display indica!ons Automa!c Opera!ng s There are two possible opera!ng s, listed below: MA and AUT s Cooling fan status The icons AUT and MA indicate the operang automac or manual. To change the, press and hold the bu!on for 1 sec. Output status Step status Ac!ve alarm Alphanumeric display The operang remains stored even a"er removing and reapplying the power supply voltage. MA When the unit is in manual, you can select one of the steps and manually connected or disconnect it. In addion to the specific icon, the alphanumeric display shows MA in order to highlight the manual condion. Press to view the other measurements as usual. While the display shows MA, it is possible to select the step to be switched on or off. To select a step, use the or bu!ons. The selected step will flash quickly. Press to acvate or deacvate the selected step. If the selected step has not yet exhausted the reconnecon me, the icon will flash to indicate that the transacon has been accepted and will be conducted as soon as possible. Manual configuraon of the steps is maintained even when the power supply voltage is removed. When the power returns, the original state of the steps is restored. MA icon Tot kvar inserited in MA Select step AUT Connected steps Change step status Manual step selecon enabled In automac, the controller calculates the opmum configuraon of capacitor steps in order to reach the set cosø. The selecon criteria takes into account many variables such as: the power of each step, the number of operaons, the total me of use, the reconnecon me, etc. The controller displays the imminent connecon or disconnecon of the steps with the flashing of their idenficaon number (le"). The flashing can last in cases in which the inseron of a step is not possible due to the reconnecon me (discharge me of the capacitor). The device iniates automac correcons when there is an average reacve power request (deltakvar) higher than 50% of the smallest step, and the measured cosø is different from the setpoint. Measurements The PFC96evo controller provides a set of measurements displayed on the alphanumeric display, in conjuncon with the current cosø that is always displayed on the main display. Press the key to scroll through the measures in rotaon. A"er 30 seconds without pressing any bu!ons, the display automacally returns to the default measurement defined by P.47. If P.47 is set on the ROT, then the measures rotate automacally every 5 seconds. At the bo!om of the list of measures it is possible to set the setpoint of the cosø, acng on the same value set with P.19. Below is a table with the measurements displayed. Measure Icon Descrip!on Delta-kvar Δkvar Kvars needed to reach the cosø setpoint. If delta-kvar is posive cpacitors need to be inserted, if negave to be disconnected. kvar ΔSTP Voltage V RMS voltage of the plant current. V HI Total kvar of the plant. umber of equal steps to achieve the target power factor. Maximum voltage value measured. Current A RMS current of the plant voltage. A HI Maximum current value masured. Weekly PF WPF Weekly average power factor. PF Instantaneous total power factor. THD cap. THDC Capacitors total harmonic distoron (THD) in current. TC.HI Maximum THD value measured. Temperature C F Temperature of internal sensor. CHI FHI Maximum temperature value measured. Voltage THD THDV Total harmonic distoron % (THD) of plant voltage. VH02...VH15 % voltage harmonic content from 2.nd up to 15.th order Current THD THDI Total harmonic distoron % (THD) of plant current. IH02 IH15 % Current harmonic content from 2.nd up to 15.th order Cosø setpoint Step power Step counter Step hours ID CAP Se'ng of desired cosø setpoint (same as P.19). % ❶ Step residual power, as a percentage of the set rated power. OPC H ❶ Operaon counter of the step. ❶ Hour meter of the step inseron. ❶ These measures are shown only if the Step trimming funcon is enabled (P.25=O) and the advanced password is enabled and entered. Keypad lock A funcon to exclude all modificaon to operang parameters can be enabled; measurement viewing is sll provided in any case. To lock and unlock the keypad, press and keep key pressed. Then press the key three mes and the key twice and a"er that release The display will show LOC when the keypad is locked and UL when it is unlocked. When the lock is enabled, it is not possible to make the following operaons: à Operaon between automac and manual à Access to set-up menus à Change of cosø set-point By a!empng to conduct the above operaons, the display will view LOC to indicate the locked Parameter se"ng (STUP) from panel To access the programming menu (setup) : To enter parameter programming the unit must be in TST (first programming) or in MA. Indicaon of TST Firmware revision MA icon Tot kvar inserited in MA Total number of steps Model variant Connected steps Manual step selecon enabled From the normal measurement display, press and hold for 3 seconds to recall the main menu. ST is displayed on the main display. If you have set the password (P.21 = O) instead of ST the display shows PAS (password entry request). Set the numeric password using and then press to move to next digit. If the password is correct the unit will show OK U or OK A depending on the entered password is user or the advanced level. The password can be defined with parameters P.22 and P.23. Factory default is 001 and 002 respecvely. If the entered password is wrong the unit will show RR. A"er having entered the password, the access is enabled unl the unit is re-inialized or for 2 minutes without pressing any key. A"er having entered the password, repeat the procedure to access the parameter se#ng. Press to select the desired submenu (BASà ADVà ALA... ) that is shown on the alphanumeric display. 16 Italfarad S.p.A. Via IV ovembre n Minerbio Bologna Italy Tel Fax mail: italfarad@italfarad.com Web:

7 Power Factor Controller PFC96evo The following table lists the available submenus: Cod BAS ADV ALA CMD CUS SAV XIT Descrip on Access to Base menu Accesso to Advanced menu Accesso to Alarm menu Access to Command menu Access to Custom menu xits saving modifica"ons. xits without saving (cancel) Press to access the submenu. When you are in a submenu, the main display shows the code of the selected parameter (eg P.01 ), while the numeric/alphanumeric displays at the bo#om of the screen shows the parameter value and / or descrip"on. Press to advance in the selec"on of items (such as scroll through parameters P.01 à P02 à P03 ), or press to go back to the previous parameter. While a parameter is selected, with you can increase/decrease its value. Backward Decrement/increment Forward Once you reach the last parameter of the menu, by pressing once more will return you to the submenu selec"on. Using select SAV to save the changes or XIT to cancel. Alterna"vely, from within the programming, holding for three seconds will save the changes and exit directly. If the user does not press any key for more than 2 minutes, the system leaves the setup automatically and goes back to normal viewing without saving the changes done on parameters (like XIT)..B.: a backup copy of the setup data (se$ngs that can be modified using the keyboard) can be saved in the eeprom memory of the PFC96evo regulator. This data can be restored when necessary in the work memory. The data backup 'copy' and 'restore' commands can be found in the Commands menu. Parameter table Below are listed all the programming parameters in tabular form. For each parameter are indicated the possible se$ng range and factory default, as well as a brief explana"on of the func"on of the parameter. The descrip"on of the parameter shown on the display can in some cases be different from what is reported in the table because of the reduced number of characters available. The parameter code can be used however as a reference. ote: the parameters shown in the table with a shaded background are essen!al to the opera"on of the system, thus they represent the minimum programming required for opera"on. Base menu COD DSCRIPTIO ACC UoM DF RAG P.01 CT primary Usr A OFF OFF / P.02 CT secondary Usr A 5 1 / 5 P.03 CT read phase Usr L1 L1 - L2 L2 P.04 CT wiring polarity Usr Aut Aut - Dir - Inv P.05 Voltage read phase Usr L2-L3 L1-L2 L2-L3 L3-L1 L1- L2- L3- P.06 Smallest step power Usr Kvar P.07 Rated installa"on voltage Usr V 400V P.08 ominal frequency Usr Hz Aut Aut - 50Hz - 60Hz - Var P.09 Reconnec"on "me Adv sec P.10 Sensi"vity Usr sec P.11 Step 1 func"on Usr OFF P.12 Step 2 func"on Usr OFF = P.13 Step 3 func"on Usr OFF = P.14 Step 4 func"on Usr OFF = P.15 Step 5 func"on Usr OFF = P.16 Step 6 func"on Usr OFF = P.17 Step 7 func"on Usr OFF = OFF O - OA - CA - FA MA - AUT - A01 A12 P.19 Cos-phi setpoint Usr 0.95 ID 0.50 Ind 0.50 Cap P.20 Alarm messages language Usr G G - ITA - FRA - SPA - POR - DU P.01 - The value of the primary current transformer. xample: with CT 800/5 set 800. If set to OFF, a&er the power-up the device will prompt you to set the CT and allow direct access to this parameter. P.02 - Value of the secondary of the current transformers. xample: with CT 800/5 set 5. P.03 It defines on which phase the device reads the current signal. The wiring of current inputs must match the value set for this parameter. Supports all possible combina"ons of parameter P.05. P.04 - Reading the connec"on polarity of the CT. AUT = Polarity is automa"cally detected at power up. Can only be used when working with only one CT and when the system has no generator device. Dir = Automa"c detec"on disabled. Direct connec"on. Inv = Automa"c detec"on disabled. Reverse wiring. P.05 - Defines on which and on how many phases the device reads the voltage signal. The wiring of voltage inputs must match the se$ng for this parameter. Supports all possible combina"ons of parameter P.03. P.06 - Value in kvar of the smallest step installed (equivalent to the step weight 1). Rated power of the capacitor bank provided at the rated voltage specified in P.07 (exemple: step 10kvar-460V supplied 400V 10 x (400) 2 /(460) 2 set 7,5kvar). P.07 - Installa"on rated voltage, which is delivered in specified power P.06. P.08 - Working frequency of the system: Aut = automa"c selec"on between 50 and 60 Hz at power on. 50Hz = fixed to 50 Hz. 60Hz = fixed to 60 Hz. Var = variable, measured con"nuously and adjusted. P.09 - Minimum "me that must elapse between the disconnec"on of one step and the subsequent reconnec"on both in MA or AUT. During this "me the number of the step on the main page is blinking. P.10 - Connec"on sensi"vity. This parameter sets the speed of reac"on of the controller. With small values of P.10 the regula"on is fast (more accurate around the setpoint but with more step swithchings). With high values instead we ll have slower reac"ons of the regula"on, with fewer switchings of the steps. The delay "me of the reac"on is inversely propor"onal to the request of steps to reach the setpoint: wai"ng "me = (sensi"vity / number of steps required). xample: setting the sensitivity to 60s, if you request the insertion of one step of weight 1 are expected 60s (60/1 = 60). If instead serve a total of 4 steps will be expected 15s (60/4 = 15). P11... P18 - Func"on of output relays : OFF = ot used = Weight of the step. This relay drives a bank of cpacitors which power is n "mes (n = 1 32) the smallest power defined with parameter P.06. O = Always on. OA = Alarm normally de-energized. The relay is energized when any alarm with the Global alarm property arises. CA = Alarm normally energized. The relay is de-energized when any alarm with the Global alarm property arises. FA = The relay controls the cooling fan. MA = Relay is energized when device is in MA. AUT = Relay is energized when device is in AUT. A01... A12= The relay is energized when the alarm specified is ac"ve. P19 - Setpoint (target value) of the cosø. Used for standard applica"ons. P20 - Language of scrolling alarm messages. Advanced menu COD DSCRIPTIO PSW UoM DF RAG P.21 Password enable Adv OFF OFF O P.22 User password Usr P.23 Advanced password Adv 002 (*) P.24 Wiring type Usr 3PH P.25 Step trimming Usr O P.26 Setpoint clearance + Usr P.27 Setpoint clearance - Usr PH three-phase 1PH single-phase O nabled OFF Disabled P.28 Step inser"on Usr STD STD Standard LI Linear P.29 Cogenera"on cosø setpoint Usr OFF OFF / 0.50 ID 0.50 CAP P.30 Disconnec"on sensi"vity Usr sec OFF OFF / P.31 Step disconnec"on passing in MA Usr OFF OFF Disabled ; O nabled P.32 Capacitor current overload alarm threshold Adv % 50 OFF / P.33 Capacitor overload immediate disconnec"on threshold Adv % 83 OFF / P.34 VT primary Usr V OFF OFF / P.35 VT secondary Usr V P.36 Temperature UoM Usr C C Celsius ; F Fahrenheit P.37 Fan start temperature Adv C ; ( F) P.38 Fan stop temperature Adv C ; ( F) P.39 Temperature alarm threshold Adv C ; ( F) P.41 Maximum voltage alarm threshold Adv % 110 OFF / P.42 Minimum voltage alarm threshold Adv % 90 OFF / P.43 THD V alarm threshold Adv % 6 OFF / P.44 THD I alarm threshold Adv % 12 OFF / Italfarad S.p.A. Via IV ovembre n Minerbio Bologna Italy Tel Fax mail: italfarad@italfarad.com Web: 17

8 Power Factor Controller PFC96evo COD DSCRIPTIO PSW UoM DF RAG P.45 Maintenance interval Adv h (**) P.46 Bar-graph func!on Usr Kvar ins/tot P.47 Default auxiliary measure Usr Week TPF P.48 Backlight flashing on alarm Usr OFF Kvar ins/tot Corr a"/nom Delta kvar a"/tot Deltakvar V A Week TPF Cap. Current Temp THDV THDI ROT OFF O P.49 Serial node address Usr P.50 Serial speed Usr bps 9.6k P.51 Data format Usr 8 bit n P.52 Stop bits Usr P.53 Protocol Usr Modbus RTU 1.2k 2.4k 4.8k 9.6k 19.2k 38.4k 8 bit, no parity 8 bit, odd 8bit, even 7 bit, odd 7 bit, even Modbus RTU Modbus ASCII P.54 umber of inser!ons for maintenance Adv kcnt OFF OFF/ P.37 P.38 - Start and stop temperature for the cooling fan of the panel, expressed in the unit set by P.36. The cooling fan is started when the temperature is >= to P.37 and it is stopped when it is < than P.38. P.39 - Threshold for genera!on of alarm A08 Panel temperature too high. P.41 - Maximum voltage alarm threshold, referred to the rated voltage set with P.07, beyond which the alarm A06 Voltage too high is generated. P.42 - Undervoltage alarm threshold, referred to the rated voltage set with P.07, below which the alarm A05 voltage too low is generated. P.43 - Maximum installa!on voltage THD alarm threshold, beyond which the alarm A10 THDV too high is generated. P.44 Maximum installa!on current THD alarm threshold beyond which the alarm A11 Current THD too high is generated. P.45 Maintenance interval in hours. When it is elapsed, the alarm A12 Ordinary maintenance will be generated. The hour count increments as long as the device is powered. (**) If the controller is installed on the ITALFARAD cabinet P.46 Func!on of the semi-circular bar-graph. Kvar ins/tot: The bar graph represents the amount of kvar actually inserted, with reference to the total reac!ve power installed in the panel. Curr act/nom: Percentage of actual plant current with reference to the maximum current of the CT. Delta kvar: bar graph with central zero. It represts the posi!ve/nega!ve delta-kvar needed to reach the setpoint, compared to the total kvar installed. P.47 Default measure shown on the secondary display. Se"ng the parameter to ROT, the different measures will be shown with a sequen!al rota!on. P.48 If set to O, the display backlight flashes in presence of one or more ac!ve alarms. P.49 Serial (node) address of the communica!on protocol. P.50 Communica!on port transmission speed. P.51 Data format. 7 bit se"ngs can only be used for ASCII protocol. P.52 Stop bit number. P.53 Select communica!on protocol. P.54 - Defines the number of the step (considering the step that has the highest count) beyond which the maintenance alarm A12 is generated. This parameter should be used as an alterna!ve to P.45. If both P.45 and P.54 are set to a value other than OFF, then P.45 has priority. P.21 If set to OFF, password management is disabled and anyone has access to the se"ngs and commands menu. P.22 With P.21 enabled, this is the value to specify for ac!va!ng user level access. See Password access chapter. P.23 As for P.22, with reference to Advanced level access. (*) Available value only if the controller is not installed on the ITALFARAD cabinet P.24 umber of phases of the power correc!on panel. P.25 - nables the measurement of the actual power of the step, performed each!me they are switched in. The measure is calculated, as the current measurement is referred to the whole load of the plant. The measured power of the steps is adjusted (trimmed) a#er each switching and is displayed on the step life sta!s!c page. When this func!on is enabled, a 15 sec pause is inserted between the switching of one step and the following, necessary to measure the reac!ve power varia!on. P.26 P.27 - Tolerance around the setpoint. When the cosø is within the range delimited by these parameters, in AUT the device does not connect / disconnect steps even if the delta-kvar is greater than the smallest step. P.28 - Selec!ng of steps inser!on. Standard - ormal opera!on with free selec!on of the steps Linear - the steps are connected in progression from le# towards right only following the step number and according to the LIFO (Last In First Out) logic. The controller will not connect a step when the system steps are of different ra!ngs and by connec!ng the next step, the set-point value would be exceeded. P.29 - Setpoint used when the system is genera!ng ac!ve power to the supplier (with nega!ve ac!ve power / power factor ). P.30 - Disconnec!on sensi!vity. Same as the previous parameter but related to disconnec!on. If set to OFF the disconnec!on has the same reac!on!me of connec!on set with the previous parameter. P.31 - If set to O, when switching from AUT to MA, steps are disconnected in sequence. P.32 Trip threshold for the capacitors overload protec!on (alarm A08), that will arise a#er a integral delay!me, inversely propor!onal to the value of the overload. ote: You can use this protec!on only if the capacitors are not equipped with filtering devices such as inductors or similar. P.33 - Threshold beyond which the integral delay for tripping of the overload alarm is zeroed, causing the immediate interven!on of the A08 alarm. P.34 P.35 Data of VTs eventually used in the wiring diagrams. P.36 Unit of measure for temperature. Alarms When an alarm is generated, the display will show an alarm icon, the code and the descrip!on of the alarm in the language selected. If the naviga!on keys in the pages are pressed, the scrolling message showing the alarm indica!ons will disappear momentarily, to reappear again a#er 30 seconds. Alarms are automa!cally rese&ed as soon as the alarm condi!ons that have generated them disappear. In the case of one or more alarms, the behaviour of the PFC96evo regulator depends on the properes se"ngs of the ac!ve alarms. COD ALLARM DSCRIPTIO A01 A02 A03 A04 Undercompensaon Overcompensaon Current too low Current too high In automac, all the available steps are connected but the cosø is sll more inducve than the setpoint. In automac, all the steps are disconnected but the cosø is sll more capacive than the setpoint. The current flowing in the current inputs is lower than minimum measuring range. This condion can occour normally if the plant has no load. The current flowing in the current inputs is lower than minimum measuring range. A05 Voltage too low The measured voltage is lower than the threshold set with P.42. A06 Voltage too high The measured voltage is higher than the threshold set with P.41. A07 Capacitor current overload The calculated capacitor current overload is higher than threshold set with P.32 and P.33. A"er the alarm condions have disappeared, the alarm message remains shown for the following 5 min or unl the user presses a key on the front. A08 Temperature too high The panel temperature is higher than threshold set with P.39. A09 A10 A11 A12 o-voltage release Voltage THD too high Current THD too high Ordinary maintenance requested A no-voltage release has occurred on the line voltage inputs, lasng more than 8ms. The THD of the plant voltage is higher than the threshold set with P.43. The THD of the plant current is higher than the threshold set with P.44. The maintenance interval set with P.45 has elapsed. To reset the alarm use the command C.01 (see Command menu). For further information, the complete user manual is available in our web site. 18 Italfarad S.p.A. Via IV ovembre n Minerbio Bologna Italy Tel Fax mail: italfarad@italfarad.com Web:

9 Power Factor Controller PFC144evo Main Front keyboard Key - Used to select among available measurements. Used also to access programming menus. keys - Used to set values and to select steps. key - Used to select automa!c opera!ng. key - Used to select manual opera!ng. Manual Induc!ve / capaci!ve Display indica!ons Automa!c Cooling fan status Output status Step Measures The PFC144evo controller provides a set of measurements displayed on the alphanumeric display, in conjunc!on with the current cosø that is always displayed on the main display. Press the key to scroll through the measures in rota!on. A#er 30 seconds without pressing any bu"ons, the display automa!cally returns to the default measurement defined by P.47. If P.47 is set on the ROT, then the measures rotate automa!cally every 5 seconds. At the bo"om of the list of measures it is possible to set the setpoint of the cosø, ac!ng on the same value set with P.19. Below is a table with the measurements displayed. Measure Icon Descrip!on Delta-kvar Δkvar Kvars needed to reach the cosø setpoint. If delta-kvar is posi!ve cpacitors need to be inserted, if nega!ve to be disconnected. kvar ΔSTP Total kvar of the plant. umber of equal steps to achieve the target power factor. Bar Secondary display Ac!ve alarm Alphanumeric display Voltage V RMS voltage of the plant current. V HI Maximum voltage value measured. Current A RMS current of the plant voltage. A HI Maximum current value masured. Opera!ng s There are two possible opera!ng s, listed below: MA and AUT s The icons AUT and MA indicate the opera!ng automa!c or manual. To change the, press and hold the or bu"on for 1 sec. The opera!ng remains stored even a#er removing and reapplying the power supply voltage. MA When the unit is in manual, you can select one of the steps and manually connected or disconnect it. In addi!on to the specific icon, the alphanumeric display shows MA in order to highlight the manual condi!on. Press to view the other measurements as usual. While the display shows MA, it is possible to select the step to be switched on or off. To select a step, use the or bu"ons. The selected step will flash quickly. Press to ac!vate or deac!vate the selected step. If the selected step has not yet exhausted the reconnec!on!me, the icon will flash to indicate that the transac!on has been accepted and will be conducted as soon as possible. Manual configura!on of the steps is maintained even when the power supply voltage is removed. When the power returns, the original state of the steps is restored. MA icon Connected steps Weekly PF WPF Weekly average power factor. PF Instantaneous total power factor. THD cap. THDC Capacitors total harmonic distor!on (THD) in current. TC.HI Maximum THD value measured. Temperature C F Temperature of internal sensor. CHI FHI Maximum temperature value measured. Voltage THD THDV Total harmonic distor!on % (THD) of plant voltage. VH02...VH15 % voltage harmonic content from 2.nd up to 15.th order Current THD THDI Total harmonic distor!on % (THD) of plant current. Cosø setpoint Step power Step counter Step hours IH02 IH15 ID CAP % Current harmonic content from 2.nd up to 15.th order Se"ng of desired cosø setpoint (same as P.19). % ❶Step residual power, as a percentage of the set rated power. OPC H ❶Opera!on counter of the step. ❶Hour meter of the step inser!on. ❶These measures are shown only if the Step trimming func!on is enabled (P.25=O) and the advanced password is enabled and entered. Tot kvar inserited in MA Select step AUT Change step status Manual step selec!on enabled In automa!c, the controller calculates the op!mum configura!on of capacitor steps in order to reach the set cosø. The selec!on criteria takes into account many variables such as: the power of each step, the number of opera!ons, the total!me of use, the reconnec!on!me, etc. The controller displays the imminent connec!on or disconnec!on of the steps with the flashing of their iden!fica!on number (le#). The flashing can last in cases in which the inser!on of a step is not possible due to the reconnec!on!me (discharge!me of the capacitor). The device ini!ates automa!c correc!ons when there is an average reac!ve power request (delta-kvar) higher than 50% of the smallest step, and the measured cosø is different from the setpoint. Keypad lock A func!on to exclude all modifica!on to opera!ng parameters can be enabled; measurement viewing is s!ll provided in any case. To lock and unlock the keypad, press and keep key pressed. Then press the key three!mes and the key twice and a&er that release The display will show LOC when the keypad is locked and UL when it is unlocked. When the lock is enabled, it is not possible to make the following opera!ons: à à à Opera!on between automa!c and manual Access to set-up menus Change of cosø set-point By a'emp!ng to conduct the above opera!ons, the display will view LOC to indicate the locked keypad state. Italfarad S.p.A. Via IV ovembre n Minerbio Bologna Italy Tel Fax mail: italfarad@italfarad.com Web: 19

10 Power Factor Controller PFC144evo Parameter se!ng (STUP) from panel To access the programming menu (setup) : To enter parameter programming the unit must be in TST (first programming) Once you reach the last parameter of the menu, by pressing once more will return you to the submenu selec!on. Using select SAV to save the changes or XIT to cancel. Indica!on of TST Firmware revision Total number of steps Model variant MA icon Tot kvar inserited in MA From the normal measurement display, press and hold for 3 seconds to recall the main menu. ST is displayed on the main display. If you have set the password (P.21 = O) instead of ST the display shows PAS (password entry request). Set the numeric password using and then press to move to next digit. If the password is correct the unit will show OK U or OK A depending on the entered password is user or the advanced level. The password can be defined with parameters P.22 and P.23. Factory default is 001 and 002 respec!vely. If the entered password is wrong the unit will show RR. A"er having entered the password, the access is enabled un!l the unit is re-ini!alized or for 2 minutes without pressing any key. A"er having entered the password, repeat the procedure to access the parameter se#ng. Press to select the desired submenu (BASà ADVà ALA... ) that is shown on the alphanumeric display. The following table lists the available submenus: Cod BAS ADV ALA FU CMD CUS SAV XIT Descrip!on Access to Base menu Accesso to Advanced menu Accesso to Alarm menu Access to thernet menu Access to Command menu Access to Custom menu xits saving modifica!ons. xits without saving (cancel) Press to access the submenu. Connected steps Manual step selec!on enabled When you are in a submenu, the main display shows the code of the selected parameter (eg P.01 ), while the numeric/alphanumeric displays at the bo%om of the screen shows the parameter value and / or descrip!on. Press to advance in the selec!on of items (such as scroll through parameters P.01 à P02 à P03 ), or press to go back to the previous parameter. While a parameter is selected, with you can increase/decrease its value. Backward Decrement/increment Forward Alterna!vely, from within the programming, holding for three seconds will save the changes and exit directly. If the user does not press any key for more than 2 minutes, the system leaves the setup automatically and goes back to normal viewing without saving the changes done on parameters (like XIT)..B.: a backup copy of the setup data (se#ngs that can be modified using the keyboard) can be saved in the eeprom memory of the PFC144evo regulator. This data can be restored when necessary in the work memory. The data backup 'copy' and 'restore' commands can be found in the Commands menu. Parameter table Below are listed all the programming parameters in tabular form. For each parameter are indicated the possible se#ng range and factory default, as well as a brief explana!on of the func!on of the parameter. The descrip!on of the parameter shown on the display can in some cases be different from what is reported in the table because of the reduced number of characters available. The parameter code can be used however as a reference. ote: the parameters shown in the table with a shaded background are essen!al to the opera-!on of the system, thus they represent the minimum programming required for opera!on. Base menu COD DSCRIPTIO ACC UoM DF RAG P.01 CT primary Usr A OFF OFF / P.02 CT secondary Usr A 5 1 / 5 P.03 CT read phase Usr L1 L1 - L2 L3 P.04 CT wiring polarity Usr Aut Aut - Dir - Inv P.05 Voltage read phase Usr L2-L3 L1-L2 L2-L3 L3-L1 L1- L2- L3- P.06 Smallest step power Usr Kvar P.07 Rated installa!on voltage Usr V 400V P.08 ominal frequency Usr Hz Aut Aut - 50Hz - 60Hz - Var P.09 Reconnec!on!me Adv sec P.10 Sensi!vity Usr sec P.11 Step 1 func!on Usr OFF OFF O - OA - CA - FA - MA - AUT - A01 A12 P.12 Step 2 func!on Usr OFF = P.13 Step 3 func!on Usr OFF = P.14 Step 4 func!on Usr OFF = P.15 Step 5 func!on Usr OFF = P.16 Step 6 func!on Usr OFF = P.17 Step 7 func!on Usr OFF = P.19 Cos-phi setpoint Usr 0.95 ID 0.50 Ind 0.50 Cap Alarm messages P.20 language Usr G G - ITA - FRA - SPA - POR - DU P.01 - The value of the primary current transformer. xample: with CT 800/5 set 800. If set to OFF, after the power-up the device will prompt you to set the CT and allow direct access to this parameter. P.02 - Value of the secondary of the current transformers. xample: with CT 800/5 set 5. P.03 It defines on which phase the device reads the current signal. The wiring of current inputs must match the value set for this parameter. Supports all possible combinations of parameter P.05. P.04 - Reading the connec!on polarity of the CT. AUT = Polarity is automa!cally detected at power up. Can only be used when working with only one CT and when the system has no generator device. Dir = Automa!c detec!on disabled. Direct connec!on. Inv = Automa!c detec!on disabled. Reverse wiring. P.05 - Defines on which and on how many phases the device reads the voltage signal. The wiring of voltage inputs must match the se#ng for this parameter. Supports all possible combina-!ons of parameter P.03. P.06 - Value in kvar of the smallest step installed (equivalent to the step weight 1). Rated power of the capacitor bank provided at the rated voltage specified in P.07 (exemple: step 10kvar-460V supplied 400V 10 x (400) 2 /(460) 2 set 7,5kvar). P.07 - Installa!on rated voltage, which is delivered in specified power P.06. P.08 - Working frequency of the system: Aut = automa!c selec!on between 50 and 60 Hz at power on. 50Hz = fixed to 50 Hz. 60Hz = fixed to 60 Hz. Var = variable, measured con!nuously and adjusted. P.09 - Minimum!me that must elapse between the disconnec!on of one step and the subsequent reconnec!on both in MA or AUT. During this!me the number of the step on the main page is blinking. 20 Italfarad S.p.A. Via IV ovembre n Minerbio Bologna Italy Tel Fax mail: italfarad@italfarad.com Web:

11 P.10 - Connection sensitivity. This parameter sets the speed of reaction of the controller. With small values of P.10 the regulation is fast (more accurate around the setpoint but with more step swithchings). With high values instead we ll have slower reactions of the regulation, with fewer switchings of the steps. The delay time of the reaction is inversely proportional to the request of steps to reach the setpoint: waiting time = (sensitivity / number of steps required). xample: setting the sensitivity to 60s, if you request the insertion of one step of weight 1 are expected 60s (60/1 = 60). If instead serve a total of 4 steps will be expected 15s (60/4 = 15). P11... P18 - Func!on of output relays : OFF = ot used = Weight of the step. This relay drives a bank of cpacitors which power is n!mes (n = 1 32) the smallest power defined with parameter P.06. O = Always on. OA = Alarm normally de-energized. The relay is energized when any alarm with the Global alarm property arises. CA = Alarm normally energized. The relay is de-energized when any alarm with the Global alarm property arises. FA = The relay controls the cooling fan. MA = Relay is energized when device is in MA. AUT = Relay is energized when device is in AUT. A01... A12= The relay is energized when the alarm specified is ac!ve. P19 - Setpoint (target value) of the cosø. Used for standard applica!ons. P20 - Language of scrolling alarm messages. Advanced menu COD DSCRIPTIO PSW UoM DF RAG P.21 Password enable Adv OFF OFF O P.22 User password Usr P.23 Advanced password Adv 002 (*) P.24 Wiring type Usr 3PH 3PH three-phase 1PH single-phase P.25 Step trimming Usr O O nabled / OFF Disabled P.26 Setpoint clearance + Usr P.27 Setpoint clearance - Usr P.28 Step inser!on Usr STD STD Standard / LI Linear P.29 Cogenera!on cosø setpoint Usr OFF OFF / 0.50 ID 0.50 CAP P.30 Disconnec!on sensi!vity Usr sec OFF OFF / P.31 Step disconnec!on passing in MA Usr OFF OFF Disabled / O nabled P.32 Capacitor current overload alarm threshold Adv % 50 OFF / P.33 Capacitor overload immediate disconnec!on threshold Adv % 83 OFF / P.34 VT primary Usr V OFF OFF / P.35 VT secondary Usr V P.36 Temperature UoM Usr C C Celsius ; F Fahrenheit P.37 Fan start temperature Adv P.38 Fan stop temperature Adv P.39 Temperature alarm threshold Adv P.41 Maximum voltage alarm threshold Adv % 110 OFF / P.42 Minimum voltage alarm threshold Adv % 90 OFF / P.43 THD V alarm threshold Adv % 6 OFF / P.44 THD I alarm threshold Adv % 12 OFF / P.45 Maintenance interval Adv h (**) P.46 Bar-graph func!on Usr Kvar ins/tot Kvar ins/tot Corr a"/nom Delta kvar a"/tot P.47 Default auxiliary measure Usr Week TPF Deltakvar V A Week TPF Cap. Current Temp THDV THDI ROT P.48 Backlight flashing on alarm Usr OFF OFF / O P.49 Serial node address Usr P.50 Serial speed Usr bps 9.6k 1.2k 2.4k 4.8k 9.6k 19.2k 38.4k P.51 Data format Usr 8 bit n 8 bit, no parity 8 bit, odd 8bit, even 7 bit, odd 7 bit, even P.52 Stop bits Usr P.53 Protocol Usr Modbus RTU Modbus RTU / Modbus ASCII P.54 umber of insertions for maintenance Adv kcnt OFF OFF / P.55 Step 9 func!on Usr OFF = P.56 Step 10 func!on Usr OFF = P.57 Step 11 func!on Usr OFF = P.58 Step 12 func!on Usr OFF = P.59 Step 13 func!on Usr OFF = P.60 Step 14 func!on Usr OFF = Power Factor Controller PFC144evo P.21 If set to OFF, password management is disabled and anyone has access to the settings and commands menu. P.22 With P.21 enabled, this is the value to specify for activating user level access. See Password access chapter. P.23 As for P.22, with reference to Advanced level access. (*) Available value only if the controller is not installed on the ITALFARAD cabinet P.24 umber of phases of the power correc!on panel. P.25 - nables the measurement of the actual power of the step, performed each time they are switched in. The measure is calculated, as the current measurement is referred to the whole load of the plant. The measured power of the steps is adjusted (trimmed) after each switching and is displayed on the step life statistic page. When this function is enabled, a 15 sec pause is inserted between the switching of one step and the following, necessary to measure the reactive power variation. P.26 P.27 - Tolerance around the setpoint. When the cosø is within the range delimited by these parameters, in AUT the device does not connect / disconnect steps even if the delta-kvar is greater than the smallest step. P.28 - Selec!ng of steps inser!on. Standard - ormal opera!on with free selec!on of the steps Linear - the steps are connected in progression from le$ towards right only following the step number and according to the LIFO (Last In First Out) logic. The controller will not connect a step when the system steps are of different ra!ngs and by connec!ng the next step, the set-point value would be exceeded. P.29 - Setpoint used when the system is genera!ng ac!ve power to the supplier (with nega!ve ac!ve power / power factor ). P.30 - Disconnection sensitivity. Same as the previous parameter but related to disconnection. If set to OFF the disconnection has the same reaction time of connection set with the previous parameter. P.31 - If set to O, when switching from AUT to MA, steps are disconnected in sequence. P.32 Trip threshold for the capacitors overload protec!on (alarm A08), that will arise a$er a integral delay!me, inversely propor!onal to the value of the overload. ote: You can use this protec!on only if the capacitors are not equipped with filtering devices such as inductors or similar. P.33 - Threshold beyond which the integral delay for tripping of the overload alarm is zeroed, causing the immediate interven!on of the A08 alarm. P.34 P.35 Data of VTs eventually used in the wiring diagrams. P.36 Unit of measure for temperature. P.37 P.38 - Start and stop temperature for the cooling fan of the panel, expressed in the unit set by P.36. The cooling fan is started when the temperature is >= to P.37 and it is stopped when it is < than P.38. P.39 - Threshold for genera!on of alarm A08 Panel temperature too high. P.41 - Maximum voltage alarm threshold, referred to the rated voltage set with P.07, beyond which the alarm A06 Voltage too high is generated. P.42 - Undervoltage alarm threshold, referred to the rated voltage set with P.07, below which the alarm A05 voltage too low is generated. P.43 - Maximum installa!on voltage THD alarm threshold, beyond which the alarm A10 THDV too high is generated. P.44 Maximum installa!on current THD alarm threshold beyond which the alarm A05 voltage too low is generated. P.45 Maintenance interval in hours. When it is elapsed, the alarm A12 Ordinary maintenance will be generated. The hour count increments as long as the device is powered. (**) If the controller is installed on the ITALFARAD cabinet P.46 Func!on of the semi-circular bar-graph. Kvar ins/tot: The bar graph represents the amount of kvar actually inserted, with reference to the total reac!ve power installed in the panel. Curr act/nom: Percentage of actual plant current with reference to the maximum current of the CT. Delta kvar: bar graph with central zero. It represts the posi!ve/nega!ve delta-kvar needed to reach the setpoint, compared to the total kvar installed. P.47 Default measure shown on the secondary display. Se'ng the parameter to ROT, the different measures will be shown with a sequen!al rota!on. P.48 If set to O, the display backlight flashes in presence of one or more ac!ve alarms. P.49 Serial (node) address of the communica!on protocol. P.50 Communica!on port transmission speed. P.51 Data format. 7 bit se'ngs can only be used for ASCII protocol. P.52 Stop bit number. P.53 Select communica!on protocol. P.54 - Defines the number of the step (considering the step that has the highest count) beyond which the maintenance alarm A12 is generated. This parameter should be used as an alterna!ve to P.45. If both P.45 and P.54 are set to a value other than OFF, then P.45 has priority. P.55...P.60 - Func!on of output relays See descrip!on of parameter. Alarms When an alarm is generated, the display will show an alarm icon, the code and the descrip!on of the alarm in the language selected. If the naviga!on keys in the pages are pressed, the scrolling message showing the alarm indica!ons will disappear momentarily, to reappear again a$er 30 seconds. Alarms are automa!cally rese"ed as soon as the alarm condi!ons that have generated them disappear. In the case of one or more alarms, the behaviour of the PFC144evo regulator depends on the properes sengs of the ac ve alarms. COD ALLARM DSCRIPTIO A01 Undercompensa on In automa c, all the available steps are connected but the cosø is s ll more induc ve than the setpoint. A02 Overcompensa on In automa c, all the steps are disconnected but the cosø is s ll more capaci ve than the setpoint. A03 Current too low The current flowing in the current inputs is lower than minimum measuring range. This condi on can occour normally if the plant has no load. A04 Current too high The current flowing in the current inputs is lower than minimum measuring range. A05 Voltage too low The measured voltage is lower than the threshold set with P.42. A06 Voltage too high The measured voltage is higher than the threshold set with P.41. The calculated capacitor current overload is higher than threshold Capacitor current set with P.32 and P.33. A"er the alarm condi ons have disappeared, A07 overload the alarm message remains shown for the following 5 min or un l the user presses a key on the front. A08 Temperature too high The panel temperature is higher than threshold set with P.39. A no-voltage release has occurred on the line voltage inputs, las ng A09 o-voltage release more than 8ms. A10 Voltage THD too high The THD of the plant voltage is higher than the threshold set with P.43. A11 Current THD too high The THD of the plant current is higher than the threshold set with P.44. Maintenance The maintenance interval set with P.45 or P.54 has elapsed. To reset A12 requested the alarm see Command menu. For further information, the complete user manual is available in our web site. Italfarad S.p.A. Via IV ovembre n Minerbio Bologna Italy Tel Fax mail: italfarad@italfarad.com Web: 21

12 MAITAC LOG Model Serial number Power kvar Voltage Volt Frequency Banks power kvar First installation date Installation site Check Signature ORDIARY MAITAC - CHCK LIST Tightness Ventilation Fuses PF controller Check Check Check Bank 1 Bank 2 Bank 3 Bank 4 Bank 5 Bank 6 Ampere Ampere Ampere Ampere Ampere Ampere R S T R S T R S T R S T R S T R S T Date XTRA ORDIARY MAITAC - RGISTRATIO OF TH ITRVTIOS Date Description Signature 22 Italfarad S.p.A. Via IV ovembre n Minerbio Bologna Italy Tel Fax mail: italfarad@italfarad.com Web:

13 Italfarad S.p.A. Via IV ovembre n Minerbio Bologna Italy Tel Fax mail: Web: 23

14 ITALFARAD S.p.A., fondata nel 1950, è specializzata nella produzione di condensatori elettrici per impieghi generali in corrente alternata, quali il rifasamento lampade, l utilizzo permanente sui motori e il rifasamento industriale (vedere cataloghi relativi). L ITALFARAD, inoltre, è specializzata nella produzione di quadri fissi e automatici per il rifasamento industriale in bassa tensione, con inserimento dei condensatori sia elettromeccanico (teleruttori) che statico (triac). Le apparecchiature dell ITALFARAD sono costruite in serie utilizzando linee automatiche e semiautomatiche e questo, unitamente all utilizzo di componenti di grande affidabilità, ne garantisce un alto livello di qualità e, allo stesso tempo, un prezzo estremamente competitivo. La qualità è un imperativo costante ed irrinunciabile per l ITALFARAD: i condensatori utilizzati sono conformi alla /2 (IC 831-1/2) i quadri hanno superato le prove di tipo previste dalle orme CI (CI 17-13/1) L ITALFARAD S.p.A detiene, dal 1993, una certificazione del Sistema di Qualità secondo le orme UI ISO 9001, aggiornato con la certificazione UI ISO 9001:2008. Founded in 1950, ITALFARAD S.p.A., specialises in manufacturing electrical capacitors for A.C. general applications, such as lighting, motor run and Power Factor Correction (see relevant Catalogues). ITALFARAD also produces L.V. fixed and automatic P.F.C. equipment, switching the capacitors by electro mechanic components (contactors) or by static system (triac). ITALFARAD P.F.C. equipment is produced en masse using automatic and semiautomatic machinery. The utilisation of highly reliable components guarantees a superior level of quality at extremely competitive prices. Quality has always been the primary objective of ITALFARAD: Capacitors comply with the /2 (IC 831-1/2) Standards The P.F.C. equipment conform to tests carried out in accordance with CI (CI 17-13/1) Standards. In 1993, ITALFARAD was awarded a Quality System Certificate according to UI ISO 9001 Standards, this certificate has been updated to UI ISO 9001:2008. ITALFARAD S.p.A. Via IV novembre, Minerbio Bo Italy Tel Fax italfarad@italfarad.com 24 dizione Italfarad S.p.A. Via IV ovembre n Minerbio Bologna Italy Tel Fax mail: italfarad@italfarad.com Web: