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User Manual

ISMG 315 / ISMG 320

Three-Phase Solar Inverter

Содержание ISMG 315

Страница 1: ...User Manual ISMG 315 ISMG 320 Three Phase Solar Inverter...

Страница 3: ...erters can still store high voltages and cause of electric shocks The temperature of the external heat sinks of the device can reach over 70 C 158 F in normal operation Ambient temperature rating 45 C...

Страница 4: ...s inverters shall be installed according to the specific norms and regulations of your local building and safety department to meet the following qualifications Electrical installation must be carried...

Страница 5: ...ions contained in this manual must be carefully read and followed Use proper lifting techniques whenever handling enclosure equipment or parts The ISMG3 inverter must be provided with an equipment gro...

Страница 6: ...on Check both of the AC and DC connections with a digital volt meter prior to any installation or removal procedures Close the cover properly before switching on the circuit breakers Not to install th...

Страница 7: ...tightened Connection of the DC cable For DC Input Terminals use wire size 10 to 16 mm 2 8 to 6 AWG 90 C 194 F Copper Wire CAUTION Identify the different polarity of DC voltage on each PV string and co...

Страница 8: ...ected correctly before tied with the grid Std DK5940 for Italy VDE0126 1 1 for Germany or RD1663 for Spain Please refer to the Section 3 3 5 Setting Operation for the selection of the grid connection...

Страница 9: ...f the DC cable 29 2 3 3 Connection of the Communication cable 32 2 4 WIRING INVERTER IN PARALLEL 35 3 OPERATION 36 3 1 OVERVIEW 36 3 2 OPERATION FEATURES 39 3 3 LCD DISPLAY 40 3 3 1 LCD Backlight Indi...

Страница 10: ...3 5 ERROR MESSAGES DESCRIPTION 64 3 6 TROUBLESHOOTING 68 4 TECHNICAL DOCUMENTATION 73 4 1 OUTLINE DRAWING 73 4 2 EFFICIENCY 74 4 3 DE RATING OPERATION 75 4 4 MPP EFFICIENCY 78 5 WARRANTY INFORMATION 8...

Страница 11: ...Fig 2 3 6 Utility Grid Configuration 26 Fig 2 3 1 1 AC Terminal Block for AC cable connections 27 Fig 2 3 2 1 ISMG3 Inverter supports two 2 independent PV strings 29 Fig 2 3 2 2 PV Inverter Connection...

Страница 12: ...Fig 4 3 2 DC Power curve of the independent PV string of the ISMG320 76 Fig 4 3 3 Output Power v s Grid voltage of the ISMG320 77 Fig 4 4 1 MPP Efficiency of the two PV strings in parallel 78 Fig 4 4...

Страница 13: ...s with Class A device The ISMG3 inverter is designed to operate automatically once it is installed and commissioned correctly according to the technical specifications When the DC input voltage genera...

Страница 14: ...hoice of Carlo Gavazzi ISMG3 inverters for your power conversion devices in your solar power system This document contains the information you need for the installation and settings of the ISMG3 inver...

Страница 15: ...000 W 19 990W Maximum output power 16 500 W 22 000 W Nominal Output Current 21 8 A 29 0 A Maximum Output Current 28 2 A 31 9 A 31 88A Waveform True sine Power factor 0 99 nominal power Total Harmonic...

Страница 16: ...sure IP55 ref IEC 60529 2001 Cooling Intelligent control fan Input Output terminals DC input Accept wire size of 10 to 16 mm 2 8 to 6 AWG AC output Accept wire size of 6 to 10 mm 2 10 to 8 AWG Weight...

Страница 17: ...ide 2008 Section F RoHS Directive 2002 95 EC Some factory settings can be re configured with the approval of the local utility provider This inverter is provided with adjustable trip limits and may be...

Страница 18: ...n time cycle 1 4 4 1 8 8 Under voltage Vac 188 225 188 188 225 188 Under voltage disconnection time cycle 1 8 8 1 8 8 Dc injection tripping current A 0 10 0 60 0 60 0 10 0 80 0 80 Dc injection disconn...

Страница 19: ...cycle 1 8 8 1 150 4 Under voltage Vac 199 225 199 160 225 196 Under voltage disconnection time cycle 1 8 8 1 150 4 Dc injection tripping current A 0 10 0 80 0 80 0 10 0 80 0 80 Dc injection disconnec...

Страница 20: ...DC 0 900V 0 1V 0 3V 2V Input Current IDC 0 50000mA 100mA 15mA 500mA Grid voltage VAC 0 300V 0 1V 0 3V 1V Grid current IAC 0 60000mA 100mA 30mA 500mA Grid frequency Hz 45 65Hz 0 01Hz 0 001Hz 0 02Hz Out...

Страница 21: ...ion Smart self diagnosis High power small size ratio High reliability competitive price Conformity to VDE 0126 1 1 ENS RD1663 RD661 DK5940 Enel Connections Guide 2008 Section F 1 4 Accessories Operati...

Страница 22: ...below the inverter when installed outdoor Allow 20 cm 7 9 inches between inverters when installing multiple inverters for better ventilation see Fig 2 1 1 Mount the inverter on a wall that is strong e...

Страница 23: ...spheres or close to combustibles or unknown materials that may result in fire expolsion danger WARNING Do not expose the inverter to the corrosive liquids and or gases Keep DC wirings as short as poss...

Страница 24: ...ount the inverter on the wall 1 After taking out the inverter from the carton the attached mounting bracket shall first be removed from the inverter by following the steps shown in Fig 2 2 1 below Fig...

Страница 25: ...at least 6 35mm and the length is 25 4mm The nut size needs to be at least 12 7mm A minimum of 10 screws are required to mount the bracket on wooden wall For mounting on steal plate the suggested scr...

Страница 26: ...16 Fig 2 2 3 Fasten the mounting bracket...

Страница 27: ...ed to the wall the inverter can be mounted and fastened on the bracket Hook the inverter on the mounting bracket flanges and slip down carefully to lock it in place And then fasten the inverter to the...

Страница 28: ...18...

Страница 29: ...Hook the Inverter on the mounting bracket and then fasten the screw After the inverter has been hooked correctly on the bracket and fastened to the mounting bracket it is then possible to proceed wit...

Страница 30: ...re wiring the inverter First the DC disconnect switch must be turned OFF as shown in Fig 2 3 1 And then remove the two screws on the right hand side open the red colour front lid of the wiring box as...

Страница 31: ...21 Fig 2 3 2 Loosen the screws...

Страница 32: ...e wiring box After the door is opened it is then possible to remove the covers of the Threaded Conduit holes as shown in the Fig 2 3 4 for the DC and AC cables to be put through the threaded conduit h...

Страница 33: ...ck two 2 RJ 45 connectors and one 1 AC terminal block in the wiring box as shown in Figure 2 3 5 The DC terminal block is used to connect up to two 2 PV strings individually or in parallel in the wiri...

Страница 34: ...24 Fig 2 3 5 Wiring box front view...

Страница 35: ...tion to the ISMG3 inverter use 10 to 16 mm 2 8 to 6 AWG 90 C 194 F copper wire For AC wiring connection use 6 to 10 mm 2 10 to 8 AWG 90 C 194 F copper wire WARNING PV arrays will be energized when exp...

Страница 36: ...26 Note When connecting the ISMG3 inverter to the utility the grid voltage must be compatible Fig 2 3 6 Utility Grid Configuration...

Страница 37: ...3 Connect the cable GND to the ground terminal labeled or PE 4 Connect the cable N to the terminal labeled N of the AC terminal block Fig 2 3 1 1 AC Terminal Block for AC cable connections 5 Connect...

Страница 38: ...ker to the AC terminal block WARNING Each connection to an ISMG3 inverter must be installed with a dedicated circuit breaker in the mains utility service panel The breaker must be sized in order to ha...

Страница 39: ...type and ratings of the PV module configured in your system The maximum DC input current is 43 3A for ISMG315 and 57 8A for the ISMG320 The maximum DC current allowed per string is 21 6A for ISMG315 a...

Страница 40: ...SMG3 inverter Therefore there are four 4 terminals two 2 of them are labeled with and other two 2 are labeled with in the wiring box for DC cable connections as shown in Fig 2 3 2 2 and Fig 2 3 2 3 Al...

Страница 41: ...light Use safe working practices when working on PV arrays WARNING Route the DC cables to be connected to the ISMG3 inverters away from any possible hazards that could damage the cables WARNING Hazar...

Страница 42: ...ed on the bottom of the enclosure The pin numbers of the RJ 45 connectors and the corresponding signals are described in Figure 2 3 3 2 below If the RS485 is used as the external communication interfa...

Страница 43: ...he RJ45 L can be used to connect to the remote PC or terminal when the RS 232 interface is selected The cable with the part number of ISMG RJ45S0918 which is 180 cm 70 9 inches in length is dedicated...

Страница 44: ...34 Fig 2 3 3 3 RS 232 connection ISMG 45S0918 Fig 2 3 3 4 RS 485 connection...

Страница 45: ...onfiguration each inverter shall connect to its own PV array It is not recommended to connect one PV array to more than one inverter This may cause the inverter to work abnormally The Fig 2 4 1 below...

Страница 46: ...reshold point the inverter will shut off its output AC power and go back to Illumination Low mode providing the DC voltage remains above the minimum MPPT voltage point When the DC voltage goes under t...

Страница 47: ...s then fed into the grid The inverter will stop feeding the power and go back to checking mode if any conditions for grid feeding mode is not satisfied anymore System Fault When fault s occurs and are...

Страница 48: ...e and stop feeding the power to the grid for safety reasons Normally this is a failure that cannot be removed by the user This state requires maintainance staff operation in order to be reset and put...

Страница 49: ...o prevent electric shock hazard to personnel who might have shut down the Utility grid in order to make maintainance operations on it 2 Unitary Power Factor The ISMG3 inverter intent is to feed the po...

Страница 50: ...pad with 4 pushbuttons for users to select the information to be displayed on the LCD from one of the categories of System Status Energy Production and Error Message The User can change under a passwo...

Страница 51: ...owing table Mode Illumination Vac 230 230 230V Fac 50 00Hz Pac 0W 03 27 06 50 25 Mode Illumination Vac 230 230 230V Fac 50 00Hz Pac 0W 03 27 06 50 25 Mode Grid MPP Vac 230 230 230V Fac 50 00Hz Pac 200...

Страница 52: ...ng AC power to the grid Derating Reduce the AC power feeding Green Warning The system has encountered a minor warning but it continues to feed the AC power to the grid SystemFault The inverter has det...

Страница 53: ...red when the power returns If a fault cannot does not self restore the system will enter the idle procedure and will need a service staff to clear the fault and reset the system The following paragrap...

Страница 54: ...0E S N 020010070001 Ver M00 S00 Std DK5940 5 seconds System Display Graphic Method Error message Setting System Display Graphic Method Error message Setting System Display Graphic Method Error message...

Страница 55: ...de Checking Vac 230 230 230V Fac 50 00Hz Pac 0W 03 27 23 50 25 Mode Check 300s Vac 230 230 230V Fac 50 00Hz Pac 0W 03 27 23 50 25 Mode Check Relay Vac 230 230 230V Fac 50 00Hz Pac 0W 03 27 23 50 25 30...

Страница 56: ...cy and The other data such as the cumulated energy the DC input power of each PV string and the AC output power of each phase can be displayed on the LCD by press the DOWN button of the keypad as show...

Страница 57: ...Eac_ty 999kWh Eac_to 999999kWh CO2_rd 999999kg 03 27 23 50 25 Mode Grid MPP Eac_ty 999kWh Eac_to 999999kWh CO2_rd 999999kg 03 27 23 50 25 Mode Grid MPP VPV_A 630 0 V I PV_A 18 2 A WPV_A 11466 W 03 27...

Страница 58: ...or additional information regarding the situations that can cause power derating The VDE0126 requires that if the maximum AC output power 110 of the rated power can normally occur together with VacH l...

Страница 59: ...error with the external terminal the COMM warning message will be displayed on the LCD If one and or two o the built in fans stop running the warning message Fan Lock A Fan Lock B or Fan Lock AB will...

Страница 60: ...t s that cause the system going into the fault mode will be recorded Users can press the ESC button to go into the main menu and then select the Error message to view the error message s of the fault...

Страница 61: ...e mains grid and have the System Idle message displayed on the LCD with the backlight in red color as shown in the figure below The fault s that cause the system going into the idle mode are recorded...

Страница 62: ...nd then press the DOWN or UP until the required date is reached The ISMG3 inverter has enough memory to record the daily chart for up to 31 days System Display Graphic Method Error message Setting Sys...

Страница 63: ...rt as shown below On the upper right corner it shows the present month To change month press OK first and then press DOWN or UP key to switch the months The ISMG3 may record monthly charts for up to 1...

Страница 64: ...D with the date and time that the fault occurred To see the next recorded error message press DOWN or UP key to browse through the pages The ISMG3 may record up to 99 error messages in the memory Syst...

Страница 65: ...qualified and professional service staff For this purpose a specific password ie required When the setting change is completed the inverter must be restarted to have the new settings effectively exec...

Страница 66: ...Graphic Method Error message Setting System Display Graphic Method Error message Setting System Display Graphic Method Error message Setting System Setting Date 2010 07 01 Time 15 25 35 Language Engli...

Страница 67: ...mum AC voltage threshold test for each phase Minimum AC voltage threshold test for each phase Maximum AC frequency threshold test for each phase Minimum AC frequency threshold test for each phase Ther...

Страница 68: ...icking ISMG315 320 Auto Test exe file The program starts with a search routine for all inverters connected to the computer a pop up window will appear on the PC screen Search for inverters as shown in...

Страница 69: ...tage VacH threshold phase order R S T b Minimum AC voltage VacL threshold phase order R S T c Maximum AC frequency FacH threshold phase order R S T d Minimum AC frequency FacL threshold phase order R...

Страница 70: ...um AC frequency threshold 49 25 Hz 80 ms The threshold value will decrease or increase from the maximum or minimum threshold value toward the measured value of the AC grid When the threshold value rea...

Страница 71: ...d Fig 3 4 1 3 Auto test process After all sub tests are completed a popup window All tests are finished will appear on the PC screen and the OK key on the PC screen has to be pressed in order to stop...

Страница 72: ...System Setting Auto Test ON System Setting Auto Test ON Press OK key AUTO TEST AUTO TEST When the Auto Test function starts running the AUTO TEST message will be displayed on the Display as shown abo...

Страница 73: ...est The inverter will stay in fault mode and will not restart unless the test is re run and it is Passed CAUTION The only purpose of the Auto Test function is only to check the operation of the interf...

Страница 74: ...h debugging according to the error message in order to restore normal operation It is recommended to screen out the fault condition s by referring to the table below and then remove the fault conditio...

Страница 75: ...of the utility grid is under the lower limit Phase Loss One or two phases are missing AC voltage is not present on that those phase L2 L3 Swap L2 and L3 phases are reversed Drift Fac Islanding is det...

Страница 76: ...power on the DC side VdcbusH Internal DC bus voltage is over the upper limit VdcbusL Internal DC bus voltage is below the lower limit Temp High The internal temperature of the inverter exceeded the s...

Страница 77: ...ternal communication failure EEPROM Fault EEPROM test failed warning message FanLock_A FanLock_B Cooling fan fans stopped running warning message Comm Error External communication failed warning messa...

Страница 78: ...ll be cleared In general we suggest to follow the steps described below to identify and solve the problems 1 Make sure that the ISMG3 inverter is correctly connected to the mains utility and PV arrays...

Страница 79: ...ot restore Calibration parameters are deviated Inform professional service staff in order to check the calibration parameters CPUs diff High Internal circuits malfunction AC current sensor malfunction...

Страница 80: ...h ground fault current Check the DC and AC wire insulation AC feed lines are disconnected Check the AC wirings AC switch breaker is open Close the AC switch breaker after clearing the faults GridNA Lo...

Страница 81: ...heck the AC wirings RCMU Fault Residual current protective device malfunctions Relay Open Relay Short Relay Fault AC relay malfunctions Restart the inverter again Inform professional staff if failure...

Страница 82: ...change the settings VacH VacL FacH FacL Mains voltage or frequency is beyond the limit The settings are inappropriate Inform professional staff to check the settings VdcbusH VdcbusL Vdcbus Fault The i...

Страница 83: ...73 4 Technical Documentation 4 1 Outline Drawing Fig 4 1 1 Outline Drawing of ISMG3...

Страница 84: ...74 4 2 Efficiency The efficiency of the ISMG315 320 is shown in Figure 4 2 1 and Figure 4 2 2 below Fig 4 2 1 Efficiency of the ISMG320 96 0 Fig 4 2 2 Efficiency of the ISMG315 95 5...

Страница 85: ...e exceeds 70 C ambient temperature is around 45 C the the output power will be reduced until the temperature falls under the critical value The ISMG3 inverter will shut down the AC power output to the...

Страница 86: ...check whether the PV arrays are properly configured according to the Inverter DC current limit Fig 4 3 2 DC Power curve of the independent PV string of the ISMG320 Output AC power excess The maximum p...

Страница 87: ...7 Output AC current The maximum current that the ISMG3 inverter feeds to the grid is limited according to the specifications listed in Section 1 2 Fig 4 3 3 Output Power v s Grid voltage of the ISMG32...

Страница 88: ...racker or connected individually to each MPP tracker The efficiencies of the 2 configurations two 2 PV strings connected in parallel and connected individually are shown in Figure 4 4 1 and Figure 4 4...

Страница 89: ...tage is still present on the device after disconnection of all PV DC inputs Allow 5 minutes for the inverter to discharge the energy completely WARNING Check that all DC and AC switches are turned off...

Страница 90: ...unit Warranty Terms The warranty terms of the ISMG3xx Inverters are specified in the Warranty terms and certificate leaflet enclosed in the package of purchased unit Product Return Procedure The produ...

Страница 91: ...81 Your Notes...

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