Installation and User Manual
Contents
1. connector must be installed with PV installation cable cross section 6mm black IUM SPCS 4 5 5 400_June 2015_Rev 01 docx 36 38 Copyright ELECTROINVENT Q electroinvent Motor Cable Connector Set AN rom 6 to 10mm outer cable diameter Figure 5 3 Motor cable connector set The cable for motor connector must be with outer diameter between 6 10mm and with 4 x 2 5mm 3P PE Please refer also to pages 11 12 Water Level Cable Connector Set Beco for 6mm up to 12 5mm outer cable outer cable diameter diameter cable clamping ring Figure 5 4 Water level cable connector set The cable for water level connector must be with outer diameter between 6 12 5mm 3 x 1 5mm IUM SPCS 4 5 5 400 June 2015 Rev 01 docx 37 38 Copyright ELECTROINVENT Q cleckroiinvent Examples of the needed tolls for assembling the PV cable connectors and water level sensors cable connectors are shown on Figure 5 5 Figure 5 5 Examples of the needed hand tools for the PV cable connectors and water level sensors cable connectors Contacts Q cleckroinvent Tel 359 2 862 14 06 868 70 65 43 Cherni Vrah blvd Fax 359 2 962 52 63 1407 Sofia PO Box 74 E Mail office elinvent com Bulgaria Web site http www electroinvent com IUM SPCS 4 5 5 400_June 2015_Rev 01 docx 38 382. is index by which can be chosen some of the liable to visualization variables The second b 01 is read only parameter only for reading in which the chosen for visualization variable appears The values which can accept b 00 as well as the corresponding list of variables for visualization are shown in paragraph 1 2 For visualization of given variable by operation with software ConfigMaster should be kept the following sequence Itis assigned the desired value of index b 00 with this it is choosing the variable for visualization With right button of the mouse should click upon first or second column of Menu 1 and from the open context menu should be chosen Download Menu 1 thus refreshing the content of parameter b 01 where the chosen variable in correct format appears Note The visualization cell Parameter b 01 can be chosen for permanent observation by click with right button upon the last column on Menu 1 Parameter 01 By this the colors of the frame are changing and the software starts periodical refreshment of its content The exit from the regime of permanent observation can be done by secondary click upon the same cell on the table By analogic way any other read only parameter can be chosen for permanent observation lt is not allowed simultaneous setting in regime for observation of two or more parameters IUM SPCS 4 5 5 400 June 2015 Rev 01 docx 26 38 Copyright ELEC
3. 01 E 02 4 1 4 Menu3 d General Setup Parameter MainsVtg V finvert kHz Fan On Levl Prot Enable Stop Mode Defaults Save Explanation Setting of grid voltage Setting of switching frequency Cooling Fan switch on level Activation Deactivation of Farth Fault protection EF and Output Phase Interruption protection out 0 both protections disabled 1 EF disabled out enabled 2 EF enabled out disabled 3 both protections enabled Inverter Stop Mode 0 controlled stop with speed ramp 1 free uncontrolled stop 1 Loading of saved backup configuration from flash memory into operational memory 2 Creation of backup configuration by copying the adjusted parameter values from operational memory into flash memory 3 Forced copying of adjusted values of parameters from operational memory into automatic area in flash memory Refer to section 4 3 4 for more details on this topic 4 1 5 Menu4 6e Multifunctional inputs Parameter Diginp1 Fnc Diginp2 Fnc Diginp3 Fnc Explanation Multifunctional Digital input 1 Multifunctional Digital input 2 Multifunctional Digital input 3 Refer to Chapter 2 1 for detailed explanation of Multifunctional Inputs configuration and usage No F 00 F 01 F 02 G 00 G 01 G 02 G 03 4 1 6 Menu5 f Ramp generator Parameter Acc x100ms Dcc x100ms Emg x100ms Explanation Positive acceleration from 0 to Freq Ref
4. 01 and h 02 parameters set the communication parameters for the RS232 RS485 serial port h 00 sets the communication speed Available values are 9600 19200 and 38400 57600 and 115200 baud The preferred speed value is entered in h 00 as listed above just the trailing two zeroes are omitted As an example the 19200 baud speed is set by h 00 192 h 01 sets the parity control 0 No Parity 1 Odd Parity 2 Even Parity h 02 sets the Stop Bits number 1 or 2 Default communication settings are 19200 N 8 1 number of data bits in character is always 8 h 03 sets the device identifier number in a MODBUS network MODBUS Node ID In accordance with MODBUS protocol possible values range from 1 to 247 Default value is 1 h 04 is a scalar used for modifying the MODBUS inter frame timeouts from their standard values This may be needed for interoperation with devices which don t Strictly abide by MODBUS standard Default setting for h 04 is 1 00 which ensures standard MODBUS inter frame timeout IUM SPCS 4 5 5 400 June 2015 Rev 01 docx 29 38 Copyright ELECTROINVENT Q eleckroinvent 4 3 9 4 3 10 Menu 8 i V Hz curve The inverter implements the well known Constant Volt per Hertz control method The parameters of this menu set the ratio between the amplitude and frequency values of inverter s output voltage 1 00 and 1 01 configure voltage boost at zero frequency and at the boost frequency re
5. Negative acceleration from Freq Ref to 0 Negative acceleration for emergency stop 4 1 7 Menu6 g Current limit Parameter llimLo Inom llimHi Inom Ovrld Timer Ovrld Scale Explanation Current limitation low level Current limitation high level Timer protection from overload Overload Current Rated Current ratio IUM SPCS 4 5 5 400 June 2015 Rev 01 docx Q electreinvent MODBUS R Factory address ange setting 0x0300 127 440 V 400 0x0301 1 12 kHz 2 0x0302 0 00 1 00 0 64 0x0303 0 3 3 0x0304 0 1 0 0x0305 0 3 0 MODBUS R Factory address ange setting 0x0400 0 110 12 0x0401 0 110 11 0x0402 0 110 3 MODBUS R Factory address ange setting 0x0500 0 9999 x 0 1s 65 0x0501 0 9999 x0 1s 65 0x0502 10 1000 x0 1s 50 MODBUS R Factory address angg setting 0x0600 20 170 135 0x0601 60 200 160 0x0602 500 32750 ms 32000 0x0603 100 150 120 21 38 Copyright ELECTROINVENT H 00 H 01 H 02 H 03 H 04 1 00 1 01 1 02 1 03 J 00 J 01 J 02 J 03 J 04 J 05 J 06 J 07 4 1 8 Menu7 h Communication Parameter Explanation free Choice of speed on RS232 serial port 9600 19200 38400 57600 115200 bit sec So The value is entered without the two trailing oe Zeroes Parity control 0 No parity control FET 1 Odd number of ones in each symbol DES 2 Even number of ones in each symbol Stop bits Number of stop bits 0x0702 Node ID Identifie
6. Writing Integer parameter value 2500 hex 09C4 Request Response 01 06 02 04 09 C4 CE 70 01 06 02 04 09 C4 CE 70 NodelD 01 Slave Address NodelD 01 Slave Address FuncCode 06 Function Code FuncCode 06 Function Code EE Register Address Param Param RETT AER ester vabvo Regal 0 Register Value RegCnt Lo C4 RegVal Lo Ke og R S ER BEE E E CRC CRC_Hi 70 CRC_Hi 70 IUM SPCS 4 5 5 400_June 2015 Rev 01 docx 34 38 Copyright ELECTROINVENT Q eleckroinvent Menu 2 Parameter 1 Writing Real parameter value 3 2 presented as 3 2 x 10 32 hex 0020 Request Response 01 06 02 01 00 20 D8 6A 01 06 02 01 00 20 D8 6A NodelD 01 Slave Address NodelD 01 Slave Address FuncCode 06 Function Code FuncCode 06 Function Code Menu 02 Register Address Menu 02 Register Address Param 01 Param 01 RegCnt Hi 00 Register Value RegVal Hi 00 Register Value RegCnt Lo 20 RegVal Lo 20 GRO Lo D8 CRC CR Lo D8 ORG CRC Hi 6A CRC Hi 6A IUM SPCS 4 5 5 400 June 2015 Rev 01 docx 35 38 Copyright ELECTROINVENT Q eleckroinvent 5 Cable Connector Sets On the Figure 5 1 to Figure 5 4 are shown the cable connectors in the SPCS 4 5 5 400 packages PV Cable Connector Set Figure 5 1 PV cable set The PV connector must be installed with PV installation cable cross section 6mm red PV Cable Connector Set OG e E i Figure 5 2 PV cable set The PV
7. hardware WLC module is present The first 4 functions control both the inverter outputs and the respective 3 pole 2 pole contactors Configuring the dual output control mode is performed as follows Function 7 Pump Manual or 8 Pump Auto is assigned to e 1 parameter Diginp2Fnc Then Function 10 OutContFbk and 9 Single Out are automatically assigned by the inverter software to parameters e 0 parameter DigInp1Fnc and e 2 parameter Diginp3Fnc respectively Table 4 3 Digital Input Functions Name Description Se Nant Enable the Pump 3 phase inverter output in Manual mode p This function should be used instead of Run Manual 2 when dual output is available Pump Auto Enable the Pump 3 phase inverter output in Auto mode This function should be used instead of Run Auto 3 when dual output is available Single Out Enable the Single phase inverter output when dual output option is available This digital input function provides feedback about the state of both contactors used to OutContFbk route the inverter output to the 3 phase or the Single phase output The feedback secures safe switch over between 3 phase and Single phase output mode LvICntrl1 WLC Module Level Control Function 1 Factory setting LvICntrl2 WLC Module Level Control Function 2 Factory setting IUM SPCS 4 5 5 400 June 2015 Rev 01 docx 25 38 Copyright ELECTROINVENT Q eleckroinvent 4 3 4 3 1 4 3 2 Description of inverte
8. 2000 0 002 NOTE Menu 10 Solar Log contains values of the variables stored in an EEPROM log As optional EEPROM is not present in the SPCS 4 5 5 400 the menu description is omitted 4 1 11 Menu 10 Solar Log IUM SPCS 4 5 5 400 June 2015 Rev 01 docx 22 38 Copyright ELECTROINVENT Q eleckroinvent 4 1 12 Menu11 1 Pump Control n 00 Min PwrFctr Power Factor level for dry pump detection 0x0B00 0 00 0 80 Number of minutes before automatic drive HE FP restart is attempted after dry pump detection RUBU ay o IUM SPCS 4 5 5 400_June 2015_Rev 01 docx 23 38 Copyright ELECTROINVENT Q eleckroinvent 4 2 4 2 1 No 0 1 Name Configuration and activation of digital input output functions Configuration and activation of digital input functions A set of digital inputs is provided to control the inverter Each digital input can be assigned different function according to the characteristics of the technological process and the customer preferences This is done by assigning any of the available set of digital input functions to some digital input All input functions will be listed and explained in this chapter further bellow Assigning a function to given digital input is done in Menu 4 Multifunctional inputs where each of the digital inputs is presented by separate parameter We choose the digital input to which we want to attach a function and then we set the paramet
9. 8 Examples of the needed hand tools 3 6 Water Level Probes Electrodes Connector description On Figure 3 9 you can see the description of the water level probes connection WATER LEVEL SENSORS Figure 3 9 Description of the water level probes connection IUM SPCS 4 5 5 400 June 2015 Rev 01 docx 12 38 Q electreinvent Copyright ELECTROINVENT 3 7 Drive LED Indication and Electronic Protections On Figure 3 10 are shown the positions of the LED indication and Communication Port cap In operational mode communication port cap must be screwed properly In service mode the communication port is used for drive monitoring and adjustment together with the Drive Remote Control Panel please refer to the control panel user manual or with laptop notebook with ConfigMaster Software LED Indication Communication Port cap Water Level Indication LED Figure 3 10 LED indication and Communication Port cap Indication is implemented by four Light Emitting Diodes LEDs see Table 3 4 Table 3 4 Drive and water level states No LED Designator LED Color Indicated Drive State IUM SPCS 4 5 5 400 June 2015 Rev 01 docx 13 38 Copyright ELECTROINVENT Q eleckroinvent Drive inverter states indicated by the blinking patterns of RDY and RUN LEDs Table 3 5 Table 3 5 Description of indication No Indicating LEDs Indicated Drive State When power is initially applied across the inverter inpu
10. Input Functions switch turned ON then after completion of capacitors charging indicated by RDY flashing as 3 RDY amp RUN described above the RDY and RUN LEDs start blinking alternatively This flashing pattern indicates that you need to cycle the Manual Start switch in order to enable the inverter as Manual Start Mode does not allow automatic start of the drive The alternative RDY and RUN LEDs flashing described above appears also in case that the Emergency input please refer to a PD S pages 24 25 Digital Input Functions is activated at any time Flashing stops when the Emergency input is deactivated When drive unit operation is controlled by the High and Low Tank Level inputs please refer to pages 24 25 Digital Input Functions 5 RDY amp RUN activation of the Water Tank High Level input turns the drive off This state is indicated by alternative flashing of the RDY and ALM LEDs The state persists until Water Tank Low Level input gets active ATTENTION A set of built in self protections preserves both the inverter and the controlled motor from various harmful conditions Activation of any protection disables the inverter output and stops the drive In automatic control mode drive restart is automatically attempted after expiration of a preset restart time interval The alarm is cleared and the drive is enabled only if the fault condition has
11. Q electreinvent Copyright ELECTROINVENT Installation and User Manual Solar Power Control System Type SPCS 4 5 5 400 June 2015 Rev 01 IUM SPCS 4 5 5 400 June 2015 Rev 01 docx 1 38 Copyright ELECTROINVENT Q eleckroinvent Contents 1 Safety Information ie rein meqsqgessrmpe mmmsmemntone 3 1 1 Warnings for danger and attention rrrrnnnnrrrrrrnnnnrrernrnnnnrrrnrrnnnnnrennnnnnnnnenn 3 ke VAN eek 4 2 Mole 5 3 Hardware Description rnnnnnvrnnnnnvevnnnnnvnnnnnnvennnnnvevnnnnvevnnnnnvennnnnvevnnnnvennnnnnernnnnnner 6 3 1 Technical parameters rrrrrnnrrrvrnnnrvvvnnnnvrvnnnnrrvrnnnsrnnnnnnennnnnnsnnnnnnsennnnnsennnnn 6 3 2 SPCS 4 5 5 400 label with technical parameters rrrrrrnnrrrrrnnrrernnnnnennnnn 7 3 3 Mechanical installation errnnrrerrnnrrrrrnnnnrvrnnnnrenrnnnrerrnnnrrnrnnnnrennnnerennnnsnennnnn 7 3 4 SPCS 4 5 5 400 CONNECTIONS cccccccccseeseceeceeeeeeeeescaeeeceeeesaaseeeesesaeeeess 9 3 5 Motor Connector GESCrIPtiON ccccecccseeeceeeeseeeeceeeeseeeeeeeeeeeeeseueeseeeeaes 11 3 6 Water Level probes electrodes Connector description rrrrrrrvrrnnnnnnn 12 3 7 Drive LED Indication and Electronic Protections rrnnrrrnrnnnrervnnnnvnnnnnnnen 13 3 8 Water Level Control rrrrnnnnrnnnnnnnnnonnnrrnnnnnnnnsvnnnrrnnnnnnnnsrnnnnnnnnnsnnnssnnnnnnnnnn 16 4 Software Functional Description sas xxxxvrnnnnnnnnnnnnnvennnnnnnnnnnnnnnnn
12. TROINVENT Q eleckroinvent 4 3 3 4 3 4 Menu 2 c Motor Parameters For the motor control mode Constant U f proportion used in this type of inverters some of parameters in Menu 2 are important for control of the pump motor others are used only to calculate the values which are visualized or are written into the log file preserved in the internal energy independent memory of the inverter The important parameters for the control of AC induction motor are 00 Nominal line voltage 01 Nominal phase current 03 Maximal frequency c 04 Base frequency Nominal voltage and current as well as the base frequency can be taken from the motor label or from producer documentation of the pump The value of c 03 Maximal frequency can be specified equal or a little higher than the base frequency This parameter specifies the upper limit to which can be increased the frequency reference in Menu 0 Parameter c 05 Power factor is used to calculate the active output power of the inverter and can be taken also from the label of the motor or pumps documentation Parameter c 02 Number of pole pairs is not substantial for this mode of motor control Menu 3 d General Setup d 00 MainsVtg By supply from electrical grid this is the nominal effective value of the line voltage By supply from solar panels the value of this parameter is specified equal to their nominal voltage d
13. already gone When a fault protection is active the RUN and RDY LEDs are turned off and the ALM LED starts blinking The ALM LED blinking pattern consists of series of frequent blinks separated by longer pauses The number of consecutive blinks in each series indicates the active fault protection Drive electronic protections indication table is shown below IUM SPCS 4 5 5 400 June 2015 Rev 01 docx 14 38 Copyright ELECTROINVENT Number of blinks Flashing Lighted Lighted Lighted Lighted Extinct Flashing Flashing Flashing 1 blink 2 blinks 3 blinks 4 blinks 5 blinks 6 blinks 7 blinks 8 blinks 9 blinks 10 blinks Q electreinvent Table 3 6 Indicated alarm states Indicated Alarm State Over Voltage Under Voltage Short Circuit Over Current Over Heating Over Load Encoder Fault not applicable for Solar pump drive systems Output Phase Interruption Earth Fault Pump Dry Run ATTENTION 1 In case that the fault condition causing the fault indication has disappeared this blinking pattern repeats until the restart time expiration The next automatic start stops the alarm indication and the RDY LED goes on again 2 Fault Protection 10 Pump Dry Run is indicated a bit differently than the others As Dry Run its not really a drive system fault but an external condition demanding the drive to be stopped unlike the other faults the Ready RDY LED is not exti
14. based Induction motors are notorious for their poor power factor in case of idle running or when driving small loads The power factor grows up when the motor load increases and reaches values of about 0 80 or even 0 90 and more at nominal load and nominal speed depending on motor specifications So knowing the power factor value the dry pump condition with respective power factor of the order of 0 20 is easily distinguished from the full load condition with power factor around 0 80 or more But if the drive is operated at speed load much smaller than the rated ones the power factor at this smaller load may occasionally drop below the default value of 0 30 so some decrease of n 0 parameter value will prevent unwanted activation of the dry pump protection In these unlikely cases setting the proper value of the power factor threshold is facilitated by the Power Factor monitoring capability of the drive system refer to the description of Menu 1 Display in paragraph 3 2 Power factor value can be monitored by selecting the value of 9 for the Display Index parameter b 0 IUM SPCS 4 5 5 400 June 2015 Rev 01 docx 31 38 Copyright ELECTROINVENT Q electroinvent 4 4 4 4 1 4 4 2 4 4 3 4 4 4 MODBUS communication Supported functions of MODBUS protocol The system supports MODBUS functions with the following functional codes Table 4 5 Functional codes Read Holding Registers Read Input Reg
15. ection subsequent disappearance of the fault condition does not restore normal drive operation Instead the inverter control system waits for the Manual Run input to be cycled If voltage is present at the inverter input we activate Function 3 to start the drive If Function 3 is permanently active corresponding input switch permanently ON The inverter starts automatically when input voltage appears Auto Mode Level above upper limit Level bellow lower limit 6 Level Enable In case that the drive is disabled by any electronic self protection subsequent disappearance of the fault condition restores normal drive operation after expiration of a timer set in j 3 parameter If this function is activated by exceeding the upper limit level of the tank the inverter stops and the pump stays switched off until activation of function 5 Level below lower limit If this function is activated by the water level gone bellow lower limit the inverter drives the motor on condition that Run Manual 2 or Run Auto 3 function is active and Emergency stop function 1 is not active Note if neither 5 nor 6 functions are configured the inverter is controlled by the Run and Emergency Stop functions only This function performs drive control through a single liquid level input The drive is enabled when Level Enable input is active and is disabled when Level Enable goes inactive IUM SPCS 4 5 5 400 J
16. ections of the drive are shown on Figure 3 4 Figure 3 5 and Table 3 3 down below Table 3 3 Power connectors of SPCS 4 5 5 400 drive Connector Connector Pole Designator Namie Description Comment PE PE Protective Earth Threaded Stud PV PV PV Input 550 850 Vpc max PV PV PV Input PV PV PV Input 550 850 Vpc max PV PV PV Input 1 Output Phase U 2 Output Phase V MOTOR 380 400 415 3 phase 3 Output Phase W PE Protective Earth 1 High Level Water Level probe electrode SET 1 2 Low Level Water Level probe electrode 3 Common Water Level probe electrode 1 High Level Water Level probe electrode SET 2 2 Low Level Water Level probe electrode 3 Common Water Level probe electrode The wiring diagram of SPCS 4 5 5 400 is shown on Figure 3 4 SOLAR POWER CONTROL SYSTEM SPCS 4 5 5 400 String 1 String 2 Motor Set 1 Set 2 PV PV PV UVW PE H LCOM H LCOM 20 panels 250Wp 20 panels 250Wp Figure 3 4 SPCS 4 5 5 400 connections block diagram IUM SPCS 4 5 5 400 June 2015 Rev 01 docx 9 38 Copyright ELECTROINVENT Q electroinvent For more detailed information regarding to positions of the drive connections and indications of the SPCS 4 5 5 400 drive please see Figure 3 5 below Control Switch PV Connectors Condensate Discharge Water Level Probes PE Threaded Stud Motor Connector Connectors Figure 3 5 SPCS 4 5 5 400 bottom side The control switch has
17. eeseeeseeeeeseaees 32 4 4 4 Format of parameters and variables of the drive accessible through MODBUS EEE EN 32 5 Cable Connector Sets asic cice acter esha wees So eeereou eeee ve ewcorueuane feietueasueuerneyeeucare 36 CONA EN 38 IUM SPCS 4 5 5 400 June 2015 Rev 01 docx 2 38 Copyright ELECTROINVENT Q eleckroinvent 1 Safety Information The present manual contains important instructions for safety operation start running into exploitation and operation with complete units type SPCS 4 5 5 400 This manual has to be kept together or near the equipment any time Used symbols and warning signs J DANGER means risky situation which if it is not avoided can lead to death or to serious injury ATTENTION ATTENTION refers to cases which are not connected with human injury Not conforming to this warning sign can bring to material damages 1 1 Warnings for danger and attention AN Read and understand the manual before installing or operating the SPCS 4 5 5 400 drives Installation exploitation and maintenance of the unit must be performed only by qualified personnel A Regional standards for installation must be observed A DO NOT touch unshielded components or terminal strip screw connections with voltage present A DO NOT E E E O the cover of the SPCS 4 5 5 400 drive box A The unit operates with voltages dangerous for human life DC capacitors of the unit stay under voltage even if the uni
18. ency 26 4 3 2 Menu 1 b Display rrnernrnnrronnnnnrvnnnnnnrnnnnnnrennnnnrennnnnnrnnnnnnnen 26 4 3 3 Menu 2 c Motor Parameters rrnnnrnnnnnnrvnnnnnrvnnnnnnrnnnnnnnen 27 4 3 4 Menu 3 d General Setup rrrrnnrnnnnnnnnvrnnnnnvrnnrnnnrnrnnnnnnenne 27 4 3 5 Menu 4 e Multifunctional inputs rrrrnnrrrrrnnrrerrnnnnrnvnnnnnen 28 4 3 6 Menu 5 f Ramp generator rrrrnnnnnnennnnnnrenrnnnrennnnnnrnnnnnnnen 29 4 3 7 Menu 6 g Current Limit errnnnnrnnnnnrrvnnnnnrennnnnrennnnnnnnnnnnnnen 29 4 3 8 Menu 7 h COMMUNICATION rrrrnnnnnnrvnnnnnrennnnnnennnnnnrnnnnnnnen 29 4 3 9 Menu 8 1 V HZ curve is amnnnnnrrrrnnnnnrrrvvvnvrrnnnnnrrrvnnnnrnnnnnnnssennnn 30 4 3 10 Menu 9 Jj Solar Control rrrnrnnnnvnrnnnnnnnnnnnrennnnnnennnnnnrnnnnnnnen 30 4 3 11 Menu 10 1 Solar Log rrnnnrrnnnnnnvnvnnnnrnnnnnnrnnnnnnnenvnnnnrnnnnnnsnn 31 4 3 12 Menu 11 n Pump Control ranrnvnnnnnrrvnnnnnrennnnrrenvnnerrnnnnnnnen 31 4 4 MODBUS communication rronnnnennrnnnnnnvenrnnnnnnvnnrnnnnnnrnnnnnnnnsrnnrnnnsnsennnnnnsnee 32 4 4 1 Supported functions of MODBUS protocol rrrrrrvrrnnnvrrvennnnnnnn 32 4 4 2 Addressing of parameters and variables of the drive by MODBUS protocol ccccccscsseeceeccceseeeeesccsseeeeescceseeeessceeeeees 32 4 4 3 Principle of addressing ccccccsseeeceeeeseeeeeeeeeeeeeeeee
19. epending from the type and number of in series connected panels multiplied by coefficient equal to 0 707 reciprocal value of squire root of 2 d 01 flnvert kHz This parameter specifies the inverter switching carrier frequency The range for setting is 2 12 kHz The main considerations for the choice of switching frequency are higher output frequency of inverter requires also higher switching frequency but higher switching frequency causes higher commutation losses in the inverter power stage lower switching frequency produces higher acoustic noise in the motor As the drives for water pumps operate with low output frequency up to 60 Hz it is preferred the carrying frequency not to exceed 5 6 kHz Typical adjustment would be between 2 and 4 kHz The acoustic noise from the motor is of no importance for this type of drives and relatively low switching frequency helps against overheating of power transistor unit d 02 Fan On Levl This parameter sets the temperature of power unit at which the inverter cooling fan is switched on Lower value of this parameter secure lower temperature for fans switch on By value zero the fan will be permanently switched on irrespective of the temperature of the power unit This parameter is not useable in fan less design d 03 Prot Enable The inverter Earth Fault and Output Phase Interruption protections can be masked disabled or enabled using this
20. er corresponding to this input to the value corresponding to the needed function After a function has been configured assigned to a digital input activation of the input activates also the attached function Activating the input means to feed an active level voltage by closing or opening of contact connected to it The type of active level if activating is done by closing or opening also can be chosen individually for each input this will be described further below in this chapter Summary In order to activate some digital input function you need to attach this function to some digital input and then the input has to be activated by feeding the chosen active level Digital Input Functions Table 4 2 Digital Input Functions Description Not configured There is no function assigned to this input Emergency stop Run By activating of this function the motor stops Until this function is active inverter cannot be started If voltage is present at the inverter input we activate Function 2 to start the drive If Function 2 is permanently active corresponding input switch permanently ON the inverter does not start automatically when input voltage appears Instead the inverter control system waits until Function 2 is deactivated then activation Manual Mode of the function starts the inverter i e the Manual Run input has to be cycled Run In case that the drive is stopped by any electronic self prot
21. eters The label with the main technical parameters and serial number of the unit is located on the right side of the inverter module The label is shown on Figure 3 1 SOLAR POWER CONTROL SYSTEM Model SPCS 4 400 Applicable motor power 5 5HP C Input voltage 560 850V Input current 10Adc max Rated output voltage 380 420V 3 0 60Hz Rated output current 11A Overload Current Rating 120 1 min Protection degree IP 55 Serial No xxxxxx Figure 3 1 SPCS 4 400 label with technical parameters and serial number 3 3 Mechanical installation The SPCS 4 5 5 400 unit has to be mounted on the wall or on the frame The inside parts of the inverter module must be protected from water or other liquid substances during the installation Comm Port cap must be screwed properly and the connectors must be assembled properly The mounting dimensions of the inverters are shown on the Figure 3 2 down below SPCS 4 400 SPCS 5 5 400 Figure 3 2 Overall and mounting dimensions IUM SPCS 4 5 5 400 June 2015 Rev 01 docx 7 38 Copyright ELECTROINVENT Q eleckroinvent The following steps Figure 3 3 must be taken into account when the SPCS 4 5 5 400 drives are mounted 0 25m 0 50m a lt 5 Figure 3 3 Mounting an SPCS 4 5 5 400 drive IUM SPCS 4 5 5 400_June 2015 Rev 01 docx 8 38 Copyright ELECTROINVENT Q eleckroinvent 3 4 SPCS 4 5 5 400 connections Conn
22. f no importance j 06 and j 07 parameters configure the MPPT Maximum Power Point Tracking operation IUM SPCS 4 5 5 400_June 2015_Rev 01 docx 30 38 Copyright ELECTROINVENT Q eleckroinvent 4 3 11 4 3 12 MPPT performs continuous automatic correction of the Critical Voltage value configured via j 02 in order to achieve maximal possible frequency on the inverter output The Critical Voltage value set by j 02 is internally summed with a correction value which is periodically re calculated using the well known Perturb amp Observe algorithm The intervals for calculation of the correction are set in milliseconds through j 06 MPPT Timeout The perturbation step is set by n 07 MPPT Step MPPT operation is possible only in the case of one inverter connected to a PV string If several inverters are supplied from common string MPPT function on each of them should be cancelled by giving the MPPT Step j 06 the value of 0 Menu 10 1 Solar Log Menu 10 Solar log contains values of the variables stored in an EEPROM log As EEPROM option is not available in the present hardware the menu description is omitted Menu 11 n Pump Control As continuous operation of the pumping system without water is considered an emergency protection against it is implemented in the drive control system Menu 11 provides parameters for customizing this protection There are two decisions to be made regard
23. h to shift the decimal separator to the zero position converting the Real value into Integer one Knowing the DP position for any parameter of interest the receiving side restores the actual parameter value through dividing the integer number coded in the MODBUS frame by the same transformation factor The screenshot below shows part of a Drive Unit configuration downloaded through the ConfigMaster tool IUM SPCS 4 5 5 400 June 2015 Rev 01 docx 32 38 Copyright ELECTROINVENT Q electreinvent Conversion of Real parameter value to Integer one is illustrated with the example of Parameter 6 in Menu 2 Figure 4 1 There are three digits to the right of the decimal separator there so the DP position is equal to 3 The transformation factor should be 1013 1000 Hence the value of 0 760 is transformed into 1000 x 0 760 760 before being inserted into the MODBUS message frame On reception the real value is restored through dividing of 760 by 1000 ww Configuration Master File Target Data Settings Help Menu No Menu Name Param No Parameter Name Param Type Min Val ue Max Value Default Value Set Value 0 a 1 b Speed Setpoint Display Motor params General Setup 170 Out Spd Ref rpm Max km h 10 Lim km h 10 Disp Par ID Displ Value U nom nom A Pole pairs Enc Type Enc Pulses Spd Max rpm Trq Scaler Mains Vtg flnvert kHz Fan On Levl Stop Mode Gen Cmd rd Deflts Save Anlnp1 Func A
24. ing the timing of the dry pump protection a How long to wait before turning the drive off in case that dry pump condition is detected This timeout value is set in seconds via n 01 Tmeout sec parameter It shouldn t be too small because transient dry pump conditions normally occur during initial drive acceleration The timeout must not be too long either as prolonged dry rotation may be harmful for the pump By default the timeout is set to 60 seconds b How long the drive should stay inactive in case it has been turned off due to dry pump condition This interval is set in minutes via n 02 Restrt min parameter The maximal value of 0 02 is 1440 minutes 24 hours By default the restart interval is set to 60 minutes Besides a Minimal Power Factor threshold is set which is used for dry pump condition detection Normally you don t need to change the default value of 0 40 set for this n 0 Min PwrFctr parameter But in some rare cases it might need modification especially if the pump regime allows continuous operation at speed or load substantially smaller than the nominal ones In such cases faulty activation of the dry pump protection may occur To avoid it you may need to slightly decrease the n 0 setting To help you figure out the meaning of this Minimal Power Factor threshold here is a brief description of the simple principle on which the dry pump protection implementation is
25. inverter configuration is restored from the last switch off This is so called automatic configuration which is preserved and restored automatically without external command By change of some configuration parameters it is possible to reach to unwanted behavior of the drive compared with its condition before start of the changes In case a lot of changes are made the restoration by memory of the last working configuration can be impossible To secure taking out from such unfavorable situation it is foreseen a possibility for saving the reserve configuration This configuration is saved in separate zone in flash memory that is not affected by automatic writing at power down It is recommended after change of configuration parameters by reaching well working configuration this configuration to be written as a reserve one This can be done as on d 05 is assigned value of 2 d 05 2 after writing of configuration the value on d 05 automatically returns in 0 So written reserve configuration stays unchanged until not being overwritten in already described manner Copying of reserve configuration from flash memory into operative memory becomes as on d 05 is assigned value of 1 d 05 1 The running configuration can also be written in the flash memory not only automatically at power down but also forcefully as on d 05 is assigned value 3 d 05 3 Note Each of these operations can be activated only in inactive c
26. ional menus described below Table 4 1 Parameters of frequency inverter 4 1 1 MenuQ a Frequency Set point Parameter Explanation Freq Ref Hz Frequency Reference Hz Freq Min Hz Minimal operational Frequency Hz 4 1 2 Menu 1 b Display Parameter Explanation Choice of variable for visualization 0 voltage across the capacitor battery 1 output phase current of the inverter motor 2 input DC current of the inverter option not applicable in base model 3 output frequency of the inverter oop aaa 4 drive condition 5 software version 6 state of digital inputs of the inverter 7 state of digital outputs of the inverter 8 calculated Output Line Voltage 10 calculated Power Factor Displ Value Present value of selected variable 4 1 3 Menu2 C Motor Parameters Parameter Explanation Unom V Nominal line voltage l nom A Nominal phase current Pole pairs Number of pole pairs Frq Max Hz Maximal frequency Frq Base Hz Base frequency IUM SPCS 4 5 5 400 June 2015 Rev 01 docx MODBUS address 0x0000 0x0001 MODBUS address 0x0100 0x0101 MODBUS address 0x0200 0x0201 0x0202 0x0203 0x0204 Range Range 100 420 0 5 48 0 1 4 25505 25 65 Arms Hz Hz 20 38 Factory setting 50 0 30 0 Factory setting Factory setting 400 Depends on the drive power 2 55 50 Copyright ELECTROINVENT No d 00 d 01 d 02 d 03 d 04 d 05 No E 00 E
27. isters 05 0x05 Write Single Coil Write Single Register Write Multiple Registers Addressing of parameters and variables of the drive by MODBUS protocol Each of described inverter configuration parameters may be read modified by standard functions of MODBUS protocol Principle of addressing Two byte address for access to any configured parameter is formed this way gt Most significant byte is the number of the menu to which the parameter belongs gt Least significant byte is the index of the parameter within the menu Format of parameters and variables of the drive accessible through MODBUS Presentation of parameter values inside the MODBUS Protocol Data Units is depicted below To add clarity some examples are included please refer to the screenshot on the next page Both Integer and Real configuration parameters transmitted through MODBUS frames are coded as 16 bit integer values Representation of any parameter sent over the serial line depends on the adopted position of the Decimal Point DP for the parameter A parameter value is transformed to Integer through multiplying it by a factor equal to the N th power of 10 where N is the DP position For an Integer parameter DP position is zero so the transformation factor in this case equals 1 and the value is sent exactly as it appears in the Set Value field on the screen For a Real parameter the transformation factor being a power of 10 is big enoug
28. k installation and low maintenance costs After installation the drive could work in automatic mode and there is no need of additional adjustments The drive is compatible and easy to operate with different types of water pumps Typical application diagram of SPCS 4 5 5 400 installation Solar Power Control System PV Panels Figure 2 1 Typical application diagram of SPCS 4 5 5 400 installation IUM SPCS 4 5 5 400_June 2015 Rev 01 docx 5 38 Copyright ELECTROINVENT Q electroinvent 3 Hardware Description 3 1 Technical parameters The basic technical parameters of SPCS 4 5 5 400 are listed in Table 3 1 Table 3 1 Technical parameters Model SPCS 4 400 SPCS 5 5 400 Applicable AC Induction Motor Power 4 0 kW 5 5 HP 5 5 KW 7 5 HP Output Frequency min and max frequency 0 60 Hz Variable 0 60 Hz Variable software adjustable in service mode Frequency Drive Frequency Drive Max Input Voltage Voc 850 Voc 850 Voc Number of String Inputs Degree of Protection IP 55 LED Indication Ready Run Alarm Communication RS 232 485 MODBUS RTU Over Voltage Short Circuit Over Load Earth Fault Output Phase Interruption Overheating Reverse Polarity Dry Run Acceleration Deceleration Time Adjustment ramps System Diagnostic IUM SPCS 4 5 5 400 June 2015 Rev 01 docx 6 38 Copyright ELECTROINVENT Q electroinmvent 3 2 SPCS 4 5 5 400 label with technical param
29. n the HIGH to COMMON and LOW to COMMON electrodes The distance between the HIGH and LOW probes forms the level hysteresis Recommended sensors electrodes are Lovato Electric 11SN13 kit of 3 level electrodes or similar types The table with operating states of the water level management is shown down below Implemented Water Level Control management with two sets of water level sensors and corresponding water level indication states are presented in Table 3 8 down below IUM SPCS 4 5 5 400 June 2015 Rev 01 docx 17 38 Copyright ELECTROINVENT Q ellectroinvent Table 3 8 LED Indication and Water Level Management States DOO DO1 WELL State State SET1 Reaction Reaction and Pump from from TANK State SET1 SET2 SET sensors sensors States WELL Full 9 TANK Empty UN WELL Empty 9 i TANK Full STOP WELL Full TANK Full SOP WELL Empty TANK Empty ee Water Level Indication LED State 2 sec lit ON 2 sec extinct 0 2 sec lit ON 3 8 sec extinct 0 2 sec lit ON 0 2 sec extinct gt 0 2 sec lit ON 3 4 sec extinct 0 2 sec lit ON 0 2 sec extinct gt 0 2 sec lit ON 0 2 sec extinct gt 0 2 sec lit ON 3 0 sec extinct NOTE 1 digital output logic active state 0 digital output logic inactive state Comment Winking uniformly with period 4
30. nguished while Pump Dry Run alarm is indicated 3 Also there is another case of different indication When there is a pump Stop condition initiated by the Water Level Control management then the RDY and ALM LEDs are blinking consecutively The Water Level Control states are described on page 18 Drive State LED Indications Summary Extinct Extinct Flashing Lighted Extinct Extinct Flashing Extinct Extinct Extinct Extinct Extinct Extinct Flashing Flashing Extinct Flashing Flashing IUM SPCS 4 5 5 400 June 2015 Rev 01 docx Table 3 7 Drive state LED indications Capacitors Charging Ready Start Not Activated Ready Start Pending Ready Activated Running Pump Run disabled Dry Drive Fault Drive Disabled Drive Off Emergency active or Inverter powered up with Manual Start active Water Tank High Level on Water Level Control function initiated stop Lasts approx 15 seconds Control switch in position OFF Control switch in position ON See Table 3 5 Control switch in position ON 10 wink series separated by pauses From 1 to 9 wink series separated by pauses RDY RUN alternatively flashing To end this state Remove Emergency input or Cycle the Manual Start input RDY ALM alternatively flashing until Water Tank Low Level goes active Refe
31. nlnp2 Func Dalnp1 Func Dalnp2 Func Dalnp3 Func Dalnp4 Func Dalnp5 Func Dalnp6 Func Dalnp Func DaPot Step DaPot Step DaPot Ramp DaPot Ramp AnaQut Func DgOutl Func DgOut2 Func 0 1 2 0 1 0 1 2 3 4 5 6 0 1 2 3 4 5 0 1 2 a 4 5 6 i 8 g unsigned integer unsigned integer unsigned integer unsigned integer unsigned integer unsigned integer unsigned real unsigned integer unsigned integer unsigned integer unsigned integer unsigned real unsigned integer unsigned integer unsigned real unsigned integer bitfield unsigned integer unsigned integer unsigned integer unsigned integer unsigned integer unsigned integer unsigned integer unsigned integer unsigned integer unsigned integer unsigned real unsigned real unsigned real unsigned real unsigned integer unsigned integer unsigned integer ol of td ooo oo oo E NE ao a 9 9 0 ose Pet PT ime PP es 0 0 0 6000 360 360 8 0 Refresh Faults Figure 4 1 ConfigMaster User Interface Parameter 6 Menu 2 The following examples illustrate reading modification message sequences for various parameter formats Read Holding Registers MODBUS Function Code 0x03 Menu 2 Parameter 4 Reading of Integer parameter value 2500 hex 09C4 Table 4 6 Examples Request Response 01 03 02 04 00 01 C4 73 01 03 02 09 C4 BF 87 NodelD 01 Slave Address NodelD 01 Slave Address FuncCode 03 Function Code FuncCode 03 F
32. nnnnnnnnnnnnennnnnnn 20 4 1 Parameters of frequency inverter SPCS 4 5 5 400 Software 0 0 EEE ntacinse soe NR EE 20 4 1 1 Menu 0 a Frequency Set point rrrnnrrrrnrrnnnrrrrnrrnnnrnrnnrnnnennr 20 4 1 2 MENTE DEN ae nkintde 20 4 1 3 Menu 2 c Motor Parameters cccceccseeeeeeeeeeeeeeeeeeneeeeeees 20 4 1 4 Menu 3 d General Setup rannnrrnnrnnnnnnvnvrnnnnnrrnrrnnnnnrnnnnnnnnne 21 4 1 5 Menu 4 e Multifunctional inputs ccccseseeeesseseeeeeeeeeeees 21 4 1 6 Menu 5 f Ramp generator rrannrrnnnnnnrnnnnnnrvnnnnnnennnnnnnnnnnnnnen 21 4 1 7 Menu 6 g Current limit rrrnnnrrrnnrnnnnnnrnrrnnnnnrrnvrnnnnnrnnvnnnnnre 21 4 1 8 Menu 7 h Communication ronnrnennrnnnnnronnrnnnnnrrnnnnnnnnrnnnnnnnnne 22 4 1 9 Menu 8 1 V HZ CUIVe rrernnnnnornnnnnnvrnnnnnvnnnnnnrnnnnnnnnnnnnnnsnnnnnnsee 22 4 1 10 Menu 9 Jj Solar Control rrrnnrrrnnnrnnnrnvvnrrnnnrnrnnnnnnnnnennrnnnnnnnn 22 4 1 11 Menu 10 1 Solar Log rrrrrnnnrrrnnnnnnnrvnnnrrnnnnnnnnnvennrrnnnnnnnnrnennn 22 4 1 12 Menu 11 n Pump Control rervevrnnnrrrvennnnnvrvvenrnnnerrennnnnnereeenn 23 4 2 Configuration and activation of digital input output functions 0 24 4 2 1 Configuration and activation of digital input functions 24 4 3 Description of inverter menus and parameters rrrrnnrrvrrnnrrvvrnnrrevrnnnrnnnnn 26 4 3 1 Menu 0 a Setting of inverter output frequ
33. ondition of inverter when the Run input is inactive Menu 4 e Multifunctional inputs Each of parameters e 0 e 2 in this menu corresponds to one physical input of the inverter Digital inputs e 01 e 02 are multifunctional and each of them can be assigned some of the available digital input functions as described in 2 1 Configuration and activation of digital input functions IUM SPCS 4 5 5 400 June 2015 Rev 01 docx 28 38 Copyright ELECTROINVENT Q eleckroinvent 4 3 6 4 3 7 4 3 8 Menu 5 f Ramp generator By parameters f 00 and f 01 can be specified positive acceleration and negative motor acceleration Acceleration is assigned as time for change of output frequency of the inverter from 0 to maximal specified frequency Freq Ref for positive acceleration from maximal specified frequency Freq Ref to 0 for negative acceleration The time is assigned in 0 1 second units For example adjustment 100 of the time for positive acceleration f 00 corresponds to 100 x 0 1 10 Sec This is a small acceleration corresponding to smooth start up of the pump and such adjustment for positive acceleration is typical for this type of drives Parameter f 02 assigns negative acceleration applied in during Emergency Stop Menu 6 g Current Limit g 00 specifies a low limitation threshold for the motor phase current In case of exceeding this limit the motor accele
34. parameter Possible values of this parameter and their meaning are shown below Table 4 4 Possible values of parameter Value Earth Fault Output Phase Interruption 0 disabled disabled 1 disabled enabled 2 enabled disabled 3 enabled enabled IUM SPCS 4 5 5 400 June 2015 Rev 01 docx 27 38 Copyright ELECTROINVENT Q eleckroinvent 4 3 5 d 04 Stop mode Parameter d 04 defines the drive behavior on removing the Run signal setting the Run input to inactive state while the pump motor Is rotating If d 04 is set to the value of 0 then the inverter brings the motor to standstill by decreasing the output frequency in accordance with the Deceleration Ramp configured by parameter H 01 controlled stop If d 04 is set to the value of 1 then the motor coasts freely to standstill uncontrolled stop d 05 Defaults Save Parameter d 05 serves mainly to store entire configurations in permanent flash memory of the inverter as well as to restore written configurations When the inverter is power supplied the configuration parameters specifying the behavior of the drive are kept in an energy dependent operational memory RAM By switch off of the power all parameters from the running configuration are automatically saved in energy independent non volatile FLASH memory By switching on of the power all parameters from energy independent memory FLASH are transferred into operational memory So the
35. r menus and parameters Menu 0 a Setting of inverter output frequency Parameter a 00 Frequency Reference sets the maximal output frequency which the inverter can achieve in case of high irradiance ensuring enough energy flow from the solar panels In lower irradiance conditions the output frequency set point is provided by the Solar PI Regulator which sustains the highest possible output frequency for given irradiance conditions Parameter a 01 Minimal operational Frequency sets a lower limit for the inverter pump operation In poor irradiance conditions the highest achievable output frequency motor velocity might be too low for the pump to ensure any water flow So the motor oump would rotate at low speed to no avail Therefore normal pump operation assumes that the pump motor rotation speed does not fall below some minimal value at which water flow stops If the incoming energy flow from the PV panels is not sufficient to sustain this minimal output frequency then the inverter control system disables the inverter output and the pump stops for certain time interval before a new attempt to accelerate the drive above the minimal frequency is tried This retry interval is configured in seconds through the n 03 Restrt sec parameter in Menu 11 Automatic restart is launched only in case that the Automatic Start input is active Menu 1 b Display The menu consists of two parameters The first b 00
36. r of MODBUS node 0x0703 Mbs timescl MODBUS communication timeout correction 0x0704 4 1 9 Menu8 i V Hz curve Parameter Explanation MARA Ustart Umax Output voltage at Zero Frequency 0x0800 Uboost Umax Output voltage at Boost Frequency 0x0801 Ubase Umax Output voltage at Motor Base Frequency Ox0802 Fboost Fmax Boost Frequency 0x0803 4 1 10 Menu9 j Solar Control Parameter Explanation er SolarPiRegP Proportional P Gain of the PI regulator 0x0900 which controls the inverter output frequency SolarPiRegl Integral I Gain of the PI regulator which 0x0901 controls the inverter output frequency Minimal allowable operating voltage against SolarVtgCrt the voltage of solar panel in non operational 0x0902 open circuit condition Restrt sec Interval in seconds for restarting the inverter 0x0903 Interval in minutes for logging of inverter Logint min operative data in internal non volatile 0x0904 memory IrradScalar Irradiance input scalar not applicable 0x0905 MPPT To ms MPPT Cycle Time in milliseconds 0x0906 MPPT Step MPPT Step 0x0907 Range 96 1152 1 2 1 247 0 100 1 900 Range 0 0 20 0 0 0 20 0 25 0 100 0 0 0 50 0 Range 0 000 1 000 0 000 0 100 0 40 0 95 10 1800 0 60 0 050 1 000 900 9999 0 000 0 010 baud 100 Q electreinvent Factory setting 192 1 000 Factory setting 0 00 0 00 1 00 0 00 Factory setting 0 025 0 008 0 80 240 5 0 470
37. r to Table 3 8 on page 18 15 38 Copyright ELECTROINVENT Q eleckroinvent 3 8 Service Mode In service mode the SPCS 4 5 5 400 communication port cap is removed and Drive Remote Control Panel is connected as shown on Figure 3 11 NOTE For more information regarding service mode of SPCS 4 5 5 400 please see Drive Remote Control Panel user manual Drive Remote Control Panel Communication Port Figure 3 11 Service mode of SPCS 4 5 5 400 IUM SPCS 4 5 5 400_June 2015 Rev 01 docx 16 38 Copyright ELECTROINVENT Q eleckroinvent 3 9 Water Level Control WLC The WLC functionality is implemented for conductive liquids water level control in pump systems An example diagram of a typical water level pump control system in well installation is shown on Figure 3 12 1 Submersible motor 2 Pump 3 Common probe electrode 4 Low level probe electrode 5 High level probe electrode 6 Submersible pipe column 7 Base plate 8 Solar power drive system with WLO module 9 Pump motor power supply cable 10 High level 11 Low level H Positive suction head dd gg a a a a AP 7 gt 3 4 gt x A 7 AP Figure 3 12 Typical well installation diagram with water level management by WLC module using one sensors electrodes set The working principle of the WLC management is based on the resistance betwee
38. ration is temporarily stopped the output frequency reference is frozen at its present value until the phase current drops below the low limitation threshold then the motor acceleration is resumed g 01 specifies a high limitation threshold for the motor phase current In case of exceeding this limit the output frequency reference is being gradually reduced until the phase current drops below the high limitation threshold then the motor acceleration is resumed Both g 00 and g 01 are dimensionless values specified against the adjusted nominal motor current If sufficiently long acceleration time is set by f 00 parameter the pump acceleration goes smoothly so in practice there is rather small probability of entering any of the current limitation regimes g 02 is a parameter which sets a timer for drive overload protection The overloading protection is activated in case of continuous operation at motor phase current greater than the adjusted overload current of the motor set by g 03 The time is assigned in milliseconds For example the adjustment of g 02 5000 means that the overload protection will be activated after operation longer than 5 seconds at current bigger than the overload value g 03 sets the motor current threshold above which overload timer is started g 03 is a dimensionless value the ratio between the overload current and the nominal motor current Menu 7 h Communication h 00 h
39. seconds 1 short wink long dark pause 2 short winks long dark pause 3 short winks long dark pause On the figure below Figure 3 13 is represented a typical solar pump installation with water level control SPCS 4 5 5 400 P WLC Sensors Set 1 PV Array N WLC Sensors Set 2 Tank Figure 3 13 Typical pump installation with water level management functionality IUM SPCS 4 5 5 400 June 2015 Rev 01 docx 18 38 Q electreinvent Copyright ELECTROINVENT On the time diagram below Figure 3 14 is represented the functionality of the WLC management Delay Delay LO1 LO2 HI1 HI2 O O DOO DO1 DOO and DO1 are the digital outputs of the WLC 1 Activated logical 1 management system corresponding to SET 1 and fl Deactivated logical 0 SET 2 water level sensors Figure 3 14 WLC functionality time diagram NOTE Instead of Water Level Control sensor connectors there could be placed Digital Input connectors for implementing another pump control functions from external automation system IUM SPCS 4 5 5 400 June 2015 Rev 01 docx 19 38 Copyright ELECTROINVENT 4 4 1 A 00 A 01 b 00 b 01 C 00 C 01 C 02 C 03 C 04 Software Functional Description Parameters of frequency inverter SPCS 4 5 5 400 Software Rev 1 39 0 Q electreinvent Parameters of frequency inverter are grouped in 12 funct
40. spectively the boost frequency is set by 1 03 parameter The voltage boost increases motor torque at very low rotation speed at the price of somewhat bigger motor power losses in the low speed range For pump drive systems the load at very low rotation speed is inconsiderable so boosting of output voltage is normally redundant so 1 00 and 1 01 parameters may keep their default zero values 1 02 sets the ratio between the voltage at the base nominal voltage frequency and the nominal motor Line Voltage configured through Menu 2 Motor Parameters Ordinary setting for 1 02 is 1 00 the voltage amplitude at the nominal frequency is equal to the configured motor line voltage 1 03 sets the boost frequency value for the U f curve According to the considerations given above Voltage Boost is hardly needed for pump drives so normally 1 03 may preserve its default zero value Menu 9 j Solar Control j 00 and j 01 parameters set respectively the P component gain and I component gain of a Proportionally Integral Controller PI Controller which produces the drive output frequency set point depending on the measured value of the DC voltage coming from the PV panels Solar Pl controller prevents the drive from drawing too much power from the PV panels in case of insufficient solar radiation So it reduces the output frequency set point if the measured PV voltage tends to fall below some critical threshold This Cri
41. t is switched OFF After turning OFF the SPCS 4 5 5 400 unit and disconnecting the PV please wait 10 minutes to allow the DC bus capacitors to discharge IUM SPCS 4 5 5 400_June 2015_Rev 01 docx 3 38 Copyright ELECTROINVENT Q eleckroinvent J If some information is not clear please contact with the service center of your distributor ATTENTION Warranty void The unit must not be damaged as well as it is forbidden to make holes on it Any transport damage has to be established and reported to supplier before unit installation 1 2 Warranty The data and installation instructions given in this manual are revised regularly and all corrections are included in next issues In case of avoiding the installation instructions the warranty claims will not be accepted We cannot bear any responsibility also in cases of incidents and material damages due to improper use as well as from actions of not authorized persons with resulting from these consequences IUM SPCS 4 5 5 400_June 2015_Rev 01 docx 4 38 Copyright ELECTROINVENT Q eleckroinvent 2 Introduction The Solar Power Control System SPCS 4 5 5 400 drives are designed to be built in autonomous solar pump installations The SPCS 4 5 5 400 device is intended for direct supply of three phase AC induction pump motors The SPCS 4 5 5 400 drive is for outdoor installation It implements user friendly plug amp play and fan less design for quic
42. t terminals it takes some seconds for the high voltage capacitors to charge and 1 RDY then the device enters the normal operating condition The capacitors charging state is indicated by RDY LED flashing When charging is complete the RDY LED stays permanently lit on If RDY LED is lit on the RUN LED remains extinct until start command control switch in position ON is applied Then the RUN LED is lit too indicating active running drive state However there are cases when RUN LED is not immediately lighted instead it starts blinking for certain amount of time before being continuously lit on 1 There is a minimum time interval between two consecutive starts of the drive If the control switch is turned from position ON to 9 RDY amp RUN position OFF and then immediately switched ON again the RUN LED starts blinking until this time interval expires 2 In Auto control mode if the drive is disabled due to insufficient power input from the solar panels then an automatic start is attempted on expiration of a preset restart time interval Until this automatic start the RUN LED keeps on blinking In the both cases described above the RUN LED blinking indicates that start command control switch in position ON is applied and pending but not yet active If power is applied to the drive in Manual Mode please refer to pages 24 25 Digital
43. tical Voltage threshold is defined as proportion of the PV voltage under load towards the PV voltage in idle state Open Circuit PV voltage OC So setting the Critical Voltage presumes knowledge of the Open Circuit PV voltage Open Circuit PV voltage can be easily measured by the inverter in idle state But this is true only on condition that there is only one inverter connected to the PV string If there are two or more inverters supplied by common PV string automatic determination of the Open Circuit PV voltage is not possible as there is no guarantee that when some inverter is idle the PV panels are not being loaded by some other inverter j 02 parameter configures the relative value of the drive operating DC voltage Critical Voltage towards the Open Circuit PV voltage Normally the value of j 02 is about 0 80 which means that when the inverter is in operation its control system tries to ensure maximal possible output frequency without letting the DC voltage drop below 80 of the PV panels OC voltage value j 03 Restrt sec sets the time interval in seconds between two consecutive attempts to accelerate the pump motor above the configured minimal operational frequency Refer to the description of Parameter A 01 Minimal operational Frequency for more details j 04 and j 05 parameters are related to EEPROM logger operation Since EEPROM is not available in the present hardware these parameters are o
44. two positons OFF the drive is OFF and respectively the pump motor is not runnig ON the device is running in automatic mode please see pages 24 25 Digital Input Functions ATTENTION The SPCS 4 5 5 400 wire connections must be implemented in the following sequence 1 Check that the control switch is in OFF position 2 Connect the pump motor Figure 3 6 Check that the inverter output phases are connected so that the rotation of the pump motor will be according to the proper direction specified on the pump 3 CONNECT THE SAFETY EARTH TO THE PE THREADED STUD Figure 3 5 4 Connect the 20 panels string s to the device PV inputs 5 Check that the RDY indication LED is continuously lit on after 15 sec of blinking 6 The control switch could be moved to position ON IUM SPCS 4 5 5 400_June 2015_Rev 01 docx 10 38 Copyright ELECTROINVENT A electroinmvent 3 5 Motor Connector description On Figure 3 6 you can see the description of the motor connection MOTOR CONNECTOR PE W Figure 3 6 Description of the motor connection On Figure 3 7 is shown the motor cable connecting procedure Examples of the needed hand tools for these operations are shown on Figure 3 8 PE 180 5 Nm Figure 3 7 Motor cable connecting procedure IUM SPCS 4 5 5 400 June 2015 Rev 01 docx 11 38 Copyright ELECTROINVENT A cleckroiinvent Figure 3
45. unction Code Menu 02 Starting Address ByteCount 02 Byte Count Param 04 RegVal Hi 09 Register Value RegCnt Hi 00 Quantity of Registers RegVal Lo C4 RegCnt Lo 01 CRC Lo BF CRC CRC_Lo C4 CRC CRC_Hi 87 CRC_Hi 73 IUM SPCS 4 5 5 400 June 2015 Rev 01 docx 33 38 Copyright ELECTROINVENT Q eleckroinvent Menu 2 Parameter 1 Reading of Real parameter value 3 2 presented as 3 2 x 10 32 hex 0020 Request Response 01 03 02 01 00 01 D4 72 01 03 02 00 20 B9 9C NodelD 01 SlaveAddress NodelD 01 Slave Address FuncCode 03 Function Code FuncCode 03 Function Code Menu o Starting Address ByteCount 02 Byte Cout Param RegVal Hi 00 Register Value Regont a 0 Quantity of Registers RegVallo D ek RegCnt_Lo 01 CRC_Lo CRC CRCLo D4 CRC GREH en ie Se CRC_Hi 72 Menu 2 Parameter 6 Reading of Real parameter value 0 760 presented as 0 760 x 1000 760 hex 02F8 Request Response 01 03 02 06 00 01 65 B3 01 03 02 02 F8 B8 A6 FuncCode 03 Function Code FuncCode 03 Function Code Param RegVal_ Hi 02 Register Value RegCnt_Lo 01 CRC_Lo CRC CRC_Hi Menu 3 Parameter 2 Reading of Real parameter value 0 52 presented as 0 52 x 100 52 hex 0034 Request Response 01 03 03 02 00 01 25 8E 01 03 02 00 34 B9 93 FuncCode 03 Function Code FuncCode 03 Function Code Param RegVal_ Hi 00 Register Value RegCnt_Lo 01 CRC_Lo CRC CRT KA A SR PE EE CRC Hi 8E Write Single Register MODBUS Function Code 0x06 Menu 2 Parameter 4
46. une 2015 Rev 01 docx 24 38 Copyright ELECTROINVENT Q eleckroinvent O 11 12 By configuring input functions with numbers values shown in above table activation of given function is done by closing the contact connecting the corresponding digital input to the source of operational voltage Deactivation becomes by opening of the same contact In case it is necessary to implement the reverse logic activating by contact opening the values of functions from the table have to be modified by adding an offset of 100 Example 1 We want to assign input function 2 Run Manual to digital input 1 so that this function is activated by closing of a contact In Menu 4 Multifunctional inputs we find the parameter corresponding to digital input 1 This is parameter e 01 We give e 01 the value of 2 So function 2 is assigned to digital input 1 Function 2 is activated by closing the contact connected to input 1 Example 2 We change the conditions in Example 1 so that the function 2 is activated by opening of a contact and is deactivated by closing the contact In accordance with the principle shown above we set parameter e 01 to the value 2 100 i e 102 So function 2 is assigned to digital input 1 but it is activated by opening of a contact connected to input 1 and it is deactivated by closing the same contact Note The next 6 input functions are only applicable to a hardware with dual output 3 phase Single phase or when a
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