User Manual - Delta Electronics
Contents
1. 44 7 2 6 4 1 POWER Lim EE 45 7 2 6 4 2 Power vs Frequency 45 7 2 6 4 3 Constant cosq ss 46 7 2 6 4 4 GOSQUB sr 46 7 2 6 4 5 Constant Reactive Power 47 7 2 6 4 6 QU vvs aent 47 7 2 6 5 FRT Fault ride through 48 Maintenance EE 49 PIT Gen Fa ae 49 8 2 Repl ce F ne 50 8 3 Clean Air Outlets 5 e ree deae ree deeg EES 50 Measurement Error message and Trouble Shooting 51 CB WEE EE 51 9 2 Error Message amp Trouble Shooting 54 De Commissioninga sail alal 60 10 1 De Commissioning Procedure s 60 Techmeal Dalai D CR 61 11 1 Specification EE 61 Fiqure Section Description Page Figure 1 1 Solar system operation illustration enee nnnennnea 8 Figure 2 1 Unpacking process iui Li ul 9 Figure 2 2 Wooden case unpacking process ere 9 Figure 2 3 The identification label 10 Figure 3 1 Dimension of RPI M8 M10 M12 M15A M20A 11 Figure 3 2 Dimension of RPI M15 M20 M30 11 Figure 3 3 Inverter exterior objects NEEN 12 Figure 3 4 LCD display and control panel 12 Figure 3 5 Input Output interfaces of M8 M10 M12 M15A M20A 13 Figure 3 6 Input Output2. eee ense 24 5 4 Communication Module Connections 26 5 4 1 RS 485 ConnectiOn asnnsnnnnnnnnnnnnnnnnnnnnnnnnnnennnnnnnennnnnnnnennnnnr 26 5 4 2 EPO e e ln CN 28 5 4 3 Dry Contact Connection r rannnnnnnnnnnnnnnnnnnnennnnnnnnnnnevennnnnnnr 28 6 Active Reactive Power Control and Fault Ride Through 29 6 1 Active Power Control 29 6 1 1 Power Limit lait 29 6 1 2 Power vs Frequency iaceo dee een eda ceci etait 30 6 2 Reactive Power Control xnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnennnnnnnnennnnnnner 31 6 2 1 Fixed Active Factor osp 31 10 11 6 2 2 Active Factorcospi P Liu 31 6 2 3 Fixed Reactive POWer nnnnnrnnnnnunnnnnnnunnnnnnnnunennnnnnnennnnnunvennnnnr 32 6 2 4 Reactive Power Voltage Characteristic Q U 32 6 3 Fault Ride Through FRT rei 33 Tum on OM PV INVEREN ea oco ae aee EE Ee EE 35 T Home P se 37 72 LGD FOM Cause 37 T21 PoOWer Meter lella ii alal 37 T22 Energy Log oet 38 723 EVEN LOG se 38 7 2 4 Operation Data sa 39 7 2 5 Inverter Information eres eee 39 17 2 5 dl e EE 40 7 2 6 1 Personal Setting ciali 40 7 2 6 2 Coefficient Setting 41 7 2 6 3 Installation Settings 41 7 2 6 4 A Active Reactive Power Control
3. Modify the solar array setting and make the Voc less than 1000Vdc 3 N A Check the detection circuit inside the inverter N A Check the driver circuit in inverter stage Check all switching devices in inverter stage Check the detect circuit inside the inverter Check the connection of WC3 to CNC16 Replay CSC1 with new one Check the detection circuit inside the inverter Check the connection of WC3 to CNC16 Replace CSC2 with new one Check the detection circuit inside the inverter Check the connection of WC3 to CNC16 Replace CSC3 with new one Check the detection circuit inside the inverter 58 HW AC OCR HW ZC Fail DC Current High 1 Large Grid harmonics 2 Switching device is defective 3 Detection circuit malfunction The detection circuit for synchronal signal malfunction Switching device in boost is defective 2 Driver for boost is defective Input current detection circuit malfunction Check the utility waveform Grid connection of inverter need to be far away from non linear load if necessary Check all switching devices in inverter stage Check the detection circuit inside the inverter Check the detection circuit for synchronal signal inside the inverter 1 Check all switching device in boost 2 Check the driver curcuit for boost inside the inverter 3 Check input current detection circuit 39 10 De Commissioning 10 1 De Commission
4. 05s Vac Low Off Slow T 05s Grid Settings 4 4 21 Jun 2010 13 50 300 s 52 00 Hz Fac High On 50 50 Hz Fac High Off T 15s 74 Fac Low Off 47 00 Hz TM A Fac Low On 49 95 Hz Fac Low Off T 5 00s Figure 7 17 Grid setting page There are 19 parameters on the Grid Settings page Users can refer to table 7 2 for the function of each parameter Table 7 2 Grid setting parameters Parameter Description Inverter will be disconnected from the grid if the AC phase Vac High Off voltage rises to this value Inverter will be reconnected to grid if the AC phase voltage Vac High On drops to this value If AC voltage reaches the Vac High Off value the inverter will Vac High Off T be disconnected in this time The inverter will be disconnected from grid if the AC phase Vac Low Off voltage drops to this value Inverter will be reconnected to grid if the AC phase voltage Vac Low On rises to this value If the AC voltage reaches to the Vac Low Off value the inverter Vac Low Off T MM will be disconnected in this time Same functionality as the Vac High Off but the value must be Vac High Off Slow set lower Same functionality as the Vac High On but the value must be Vac High On Slow set lower 43 Vac High Off Slow T Vac Low Off Slow Vac Low On Slow Vac Low Off Slow T Same functionality as the Vac High Off T but the time must be set longer Same fun
5. A NELIA Grid tie Transformerless Solar Inverter RPI M8 M10 M12 M15 M15A M20 M20A M30 Contents Section Description Page 1 General InformatioOn rrnnnnnnnnnnnnnnnennnnnnnnnnnnnnnnnnnnnnnnennnnnnnnnnnnnnnnennnnnnner 6 1 1 About NIS d EIN UTC RE 6 1 2 General Warnings Notes on Safety 6 Leida 7 14 Product Deseripliohic a allea 7 1 5 FOW IL Works arl 8 1 6 Additional Information c eceeeeeeeeee esee 8 2 Installation and Wiring ccce dee SEENENREN nie cen rita aee pen arare 9 2 1 Instruction before Installation 9 2 2 Unpacking CEU 9 2 9 Package INSPCCUON aske 10 2 4 Identify of Inverter eere 10 3 PIOdUCl OVervIQW Ee 11 JA DIMENSIO M miaon riale 11 3 2 Function Introduction EE 12 3 2 1 LCD Display and Buttons 12 3 2 2 Inverter Input Output Interface 13 4 MSG 14 4 1 Installing Locatloni iaia ana 14 4 2 MOURNUNG alal eta 14 Di WING 18 5 1 Preparation before Wiring eere eere 18 5 2 AC Grid Connection 3 Phase PE or 3 Phase N PE 20 5 2 1 Required Protective Devices and Cable Cross sections 20 5 3 DC Connection from PV Array
6. O kWh Today Runtime 0 0 Hours Today Earning OE Today CO2 Saved 0 0 kg Figure 7 6 Power meter page 37 7 2 2 Energy Log Press ENTER on this page to view the historical data on the power generated from a yearly monthly and daily basis Energy Log Total 21 Jun 2010 13 50 Life Energy 29200 kWh Life Runtime 3651 Hours Total CO2 Saved 54312 kg Total Earning DE History Energy Log Year 21 Jun 2010 13 50 Energy Log Month 21 Jun 2010 13 50 Energy Log Day 21 Jun 2010 13 50 kWh 2010 kWh 2010 06 kw 2010 06 24 4500 180 20 3750 150 E 3000 120 15 2250 90 1500 60 10 750 30 5 0 0 1 2 3 4 5 6 7 8 9 10 11 12 Month 1 5 10 15 20 25 30 Day 94 8 12 16 20 24 H Peak Month May 2354 kWh Peak Day 06 92 kWh Peak Hour OL pm 14 kWh EYear 17033 kWh YearCO2 Saved 31681 kg E Month 1447 kWh Month CO2 Saved 2690 kg E Day 46 kWh DayCO2Saved 86 kg Exit 2009 Month Exit 2010 05 Day Exit 2010 06 20 Year 7 2 3 Event Log e e LI elle PL alte d d d Energy Log Year 21 Jun 2010 13 50 Energy Log Month 21 Jun 2010 13 50 Energy Log Day 21 Jun 2010 13 50 A 2009 kWh 2010 05 25 4 W 2010 06 20 4500 180 3750 150 15 3000 120 2250 90 10 1500 60 750 30 5 o o 1 2 3 4 5 6 7 8 9 10 11 12 Month 1 5 10 15 20 25 30 Day 0 4 p 12 16 Em 24
7. Recommended PV power range 14kW 19kW 18kW 25kW 26kW 38kW Nominal voltage 650Vdc Operating voltage 200Vdc 1000 Vdc Startup voltage gt 250 Vdc Start up power 40W Parallel inputs 1 MPP tracker MPP tracker l Separate inputs 2 MPP trackers Absolute maximum voltage 1000V Maximum power MPPT range Balanced inputs 50 50 350 800Vdc 350 800Vdc 480 800Vdc Unbalanced inputs 33 67 470 800Vdc 480 800Vdc 620 800Vdc Number of inputs 4 pairs MC4 6 pairs MCA Rated current 30A 2 34A 2 Maxi hort circuit aximum short circui 30 A SUR current per MPPT Isc 64 AC OUTPUT GRID SIDE Nominal power 15kVA 20kVA 30kVA Maximum power 16kVA 21kVA 30kVA Voltage 3Ph 230 400Vac Maximum current 25A 32A 46 A Inrush current 150A 100us 150A 100us 150A 100us Maximum output fault 21 8A 21 8A current rms Maximum output over current l 40A 58A protection 50 Hz models 47 53 Hz 60 Hz models 57 63 Hz Total harmonic distortion lt 3 gt 0 99 full power Adjustable 0 80 leading 0 80 lagging DC current injection lt 0 5 rated current Tare loss lt 2 W Maximum efficiency 98 2 EU efficiency gt 97 5 3 Ph N PE 3 phase AC plug that meets IP67 and specifications in table 5 2 Frequency Power factor AC connector N A Please connect to an external protection device 1 25 rated current SYSTEM INFORMATION COMMUNICATION Black on white graphical LCD di
8. amp DIRECTIVES CE conformity Grid interface Yes VDE0126 1 1 VDE AR N 4105 RD1699 CEI 0 21 Emission Harmonics Variations and flicker EN 61000 6 3 EN 61000 3 12 EN 61000 3 11 Immunity ESD RS EFT Immunity Surge EN 61000 6 2 IEC 61000 4 2 IEC 61000 4 3 IEC 61000 4 4 IEC 61000 4 5 CS PFMF Electrical safety IEC 61000 4 6 IEC 61000 4 8 IEC 62109 1 2 MISCELLANEOUS Cooling Fan 2pcs Enclosure Mounting bracket Aluminum with powder coating 69 A NELTA www deltamw com AV 5012326608
9. generating units shall pass through the fault without disconnecting from the network Feed in of a short circuit current during that time is to be agreed with the network operator In consultation with the network operator it is permissible 33 to shift the borderline 2 if the generating plant s connection concept requires to do so Also in consultation with the network operator a short time disconnection from the network is permissible if the generating plant can be resynchronized 2 seconds at the latest after the beginning of the short time disconnection After resynchronization the active power must be increased with a gradient of at least 1096 of the nominal capacity per second TC2007 3 3 13 5 section 14 Grenzkurven Spannungsverlauf unterer Wert des Grenzlinie 1 Spannungsbandes U U Grenzlinie 2 90 von U 100 faas el i D e 7 4 mm 5 95 0 mie Ft L n zf NENNEN EEN 70 4 Wem gm em MA ALTE py FDA GN i d e d e d e d d d d e d BDLLLLD 6m 0 0 0 0 00 0 0 000 000 EEE SE 0 0 0 0 i eee Unterhalb der blauen pobi DIII Kennlinie bestehen keine e f LLALLA ALALLA L DESSE UP Anforderungen hinsichtlich 45 snndeansoolpaes 9 ak ade gh age sk ag Uf ee a ugh ada nh ade a BEREE Pu MSS Pur SPI des Verbleibens am Netz 30 TT 15 4 0 150 700 1 500 3 000 Zeit in ms Zeitpunkt eines St rungseintritts Figure 6 4 Borderlines of the voltage profile of a type 2 generating plant at the network
10. 13 50 Delay Time Qi limit Lock in Power Lock out Power Curve B Figure 7 24 Q U setting page 47 7 2 6 5 FRT Fault ride through This function is only for Germany MV Italy LV and Italy MV It is not recommended that an end customers modify the default values A lg In FRT 1 2 21 Jun 2010 13 50 Dead band Vh Dead band VI K factor K factor Vdrop AU Un ti U1 t2 K factor Ugrid Unom 0 t t2 t3 time Fault occurence Figure 7 25 FRT setting page 48 8 Maintenance In order to ensure normal operation of the inverter please check the unit regularly Check that all terminals screws and cables are connected and appear as they did upon installation If there are any impaired or loose parts please contact your solar installer Ensure that there are no foreign objects in the path of the heat outlet and keep the unit and its surroundings clean and tidy WARNING Before any maintenance please switch AC and DC power off to avoid risk of electronic shock 8 1 Clean Fan Loosen the 4 screws shown in Figure 8 1 Once the screws are loose pulling the fan bracket out will expose the connectors As shown in Figure 8 1 there is one wire per fan The bracket is completely detachable once the connectors are disconnected as shown in Figure 8 2 e EH RPFMTS IM20 M30 Figure 8 1 dissembling fan connections 49 Figure 8 2 di
11. 55 mm 2 2 in PE Figure 5 3 Stripping the wire 21 Assemble the AC plug and wires as the procedures shown in figure 5 4 for all models except RPI M30 and figure 5 5 for RPI M30 model only Inverter allows either positive or negative phase sequence That means the sequence of L1 L3 can be reversed However N and PE must be connected correctly Fix it Inverter Rotate to tighten the plug dec i to ix cable i Rotate to tighten the inserter Figure 5 4 AC plug illustrationfor M8 M10 M12 M15 M15A M20 M20A D Cable NO 22 Rotate to tighten the AC plug U Inverter Rotate to tighten the plug Rotate gland to x cable AC plug Figure 5 5 AC plug illustration for M30 Table 5 3 The wiring system of the inverter wii RPI M8 M10 M12 p Med P N RPIXX3N5430098 or 09 3P3W PE x X Aid ee RPI M15A M20A M30 P N RPIXX3N5431000 After wiring installer should choose the AC connection type on the control panel About setting please refer to 7 2 6 3 Install Setting The AC voltage should be as followings 3P3W 3P4W L1 L2 400 Vac 10 L1 N 230 Vac 10 L1 L3 400 Vac 10 L2 N 230 Vac 10 L2 L3 400 Vac 10 L3 N 230 Vac 10 23 5 3 DC Connection from PV Array WARNING When undertaking DC wiring please ensure the correct polarities are connected When undertaki
12. 6 1 1 Power Limit According to BDEW s technical guideline in page 25 June 2008 version It must be possible to operate the generating facility at reduced power output In the cases listed below the network operator is entitled to require a temporary limitation of the power feed in or disconnect the facility potential danger to secure system operation congestion or risk of overload on the network operator s network risk of islanding risk to the steady state or dynamic network stability ise in frequency endangering the system stability repairs or implementation of construction measures within the scope of generation management feed in management network security management see Grundz ge zum Erzeugungsmanagement User can reduce inverter output power by set percentage of actual or rated power Please refer to 7 2 6 4 1 Power Limit for the settings procedure 29 6 1 2 Power vs Frequency There re 2 different operation curves that depend on Country setting Germany LV follow the curve in Figure 6 1 a Germany MV Italy BT Italy MT follow the curve in Figure 6 1 b legend Pm is the power generated at the time of exceeding fstart P is the feeding power f is the mains frequency fstart is the frequency when the power reduction starts fstop is the frequency when there is has zero power Gradient is the slope of power reduction Configuration can be made to meet the requirements from the network operator Ple
13. Ground or Minus to Ground or both Detection circuit malfunction Check the insulation of Solar inputs Check the capacitance dry PV panel if necessary Check the detection circuit inside the inverter Table 9 3 Warning Message Message Solar1 Low Solar2 Low Possible cause Actual Solar1 voltage is under the limit Some devices were damaged inside the inverter if the actual Solar1 voltage is close to 0 Detection circuit malfunction Actual Solar2 voltage is under the limit Some devices were damaged inside the inverter if the actual Solar2 voltage is close to 0 Detection circuit malfunction 1 Check the Solar1 voltage connection to the inverter terminal Check all switching devices in boost Check the detection circuit inside the inverter Check the Solar2 voltage connection to the inverter terminal Check all switching devices in boost2 Check the detection circuit inside the inverter One or more fans are locked One or more fans are defective 3 One ore more fans are disconnected Detection circuit malfunction Remove the object that stuck in the fan s Replace the defective fan s Check the connections of all fans Check the detection circuit inside the inverter 55 FAULT Message HW DC Injection Temperature High HW NTC1 Fail Table 9 4 Fault Message Possible cause Utility wav
14. Hour Peak Month Jul 2490 kWh Peak Day 15 95 kWh Peak Hour 01 pm 15 kWh U E Year 29200 kWh Year CO2 Saved 54312 kg E Month 2480 kWh Month CO2 Saved 4612 kg E Day 80 kWh DayC02 Saved 149 kg S Exit 2008 2010 Month Exit 2010 04 2010 06 Day 2010 06 19 2010 06 21 Year U J Li Figure 7 7 Energy log flow chart This page displays all the events errors or fault and it can show 30 records at at a time Press ENTER to view all the statistical data Event Log 21 Jun 2010 13 50 Event Summary 1 8 21 jun 2010 13 50 15 02 2010 02 12 2009 23 11 2009 03 10 2009 27 05 2009 18 02 2009 Bess No Grid HW DC Injection HW Fan Temperature Figure 7 8 Event log flow chart 38 7 2 4 Operation Data The operation data is split into 4 pages It records the maximum and or minimum values of history including voltage current power and temperature Operation Data 1 4 21 Jun 2010 13 50 Input1 Maximum Voltage 811 Current 25 2 Power 11200 Input2 Voltage Current Power O or Operation Data 3 4 21 jun 2010 13 50 Output Maximum Voltage Current Power Frequency Maximum Voltage Vdc 247 Current A 30 5 Power W 6810 Voltage Current Power Voltage Current Power Qo Operation Data 4 4 21 jun 2010 13 50 Temperature Inside Heatsink 1 Heatsink 2 Heatsink 3 Figure 7 9 Operation data flow chart 7 2 5 Inverter Information This page has the
15. Mounting Bracket I inverter on the wall Caution If there is any visible damage to the inverter accesories or any damage to the packaging please contact your inverter supplier 2 4 Identify of Inverter Users can identify the model number by the information on the product label The model number specification and the series No is specified on the product label Regard to the label location please refer to the figure 2 3 w KR Bal RPI M8 M10 M12 RPI M15A M20A RPI M15 M20 M30 Figure 2 3 The identification label 10 3 Product Overview 3 1 Dimension 625 24 6 Top view 612 24 1 oooo 00060 n gt ra RPI M8 M10 M12 278 10 9 Side view Back view 18 ST RPI M15A M20A Bottom view Figure 3 1 Dimension of RPI M8 M10 M12 M15A M20A Top view 612 24 1 960 37 8 RPI M20 RPI M15 278 10 9 931 36 6 RPI M30 Bottom view Figure 3 2 Dimension of RPI M15 M20 M30 3 2 Function Introduction The Inverter s exterior objects are shown in Figure 3 3 The detailed description can be found in sections 3 2 1 and 3 2 2 LCD LED Display and Buttons LCD LED Display ir outlets and Buttons Communication Connetions Communication Connetions RPI M8 M10 M12 DC Switch M15A M20A DC Connectors DC Connectors Figure 3 3 Inverter
16. The maximum inverter inner temperature value 51 Heatsink 2 Max The maximum Heatsink 2 temperature value 52 Heatsink 3 Max The maximum Heatsink 3 temperature value 53 Inside Min The minimum inverter inner temperature value 54 Heatsink 1 Min The minimum Heatsink 1 temperature value Reg Min The minimum Heatsink 2 temperature value 56 Heatsink 3 Min The minimum Heatsink 3 temperature value 53 9 2 Error Message amp Trouble Shooting Table 9 2 Error Message ERROR Message Possible cause Action Actual utility frequency is over 1 Check the utility frequency on the inverter the OFR setting terminal Incorrect country setting Check country setting Detection circuit malfunction Check the detection circuit inside the inverter Actual utility frequency is Check the utility frequency on the inverter under the UFR setting terminal 2 Incorrect country or Grid Check country amp Grid setting setting 3 Check the detection circuit inside the inverter Detection circuit malfunction Grid Quality Non linear load in Grid and near Grid connection of inverter need to be far away to inverter fromnon linear load if necessary 1 Wrong connection in 1 Check the AC connection must accords to HW Connect AC plug manual Fail 2 Detection circuit malfunction Check the detection circuit inside the inverter Switch on AC breaker 1 AC breaker is OFF No Grid Check the connection in AC plug and make 2 Disconnect in
17. efficiency 97 4 97 7 97 7 3 Ph N PE 3 phase AC plug that meets IP67 N A Please connect to an external protection User interface 365 days data logger and real time clock 30 events record Externalcommunication 2 RS 485 connections Frequency Power factor TI a gt z o en D 3 o 3 9 0 o O o 62 REGULATIONS amp DIRECTIVES CE conformity Grid interface Yes VDE0126 1 1 VDE AR N 4105 RD1699 CEI 0 21 Variations and flicker EN 61000 6 3 EN 61000 3 2 EN 61000 3 12 EN 61000 3 3 EN 61000 3 11 Immunity S urge EN 61000 6 2 IEC 61000 4 2 IEC 61000 4 3 IEC 61000 4 5 ESD RS EFT CS PFMF Electrical safety IEC 61000 4 4 IEC 61000 4 6 IEC 61000 4 8 IEC 62109 1 2 MISCELLANEOUS Cooling Fan 1pcs Fan 1pcs Fan 1pcs Enclosure Mounting bracket Aluminum with powder coating 63 Table 11 2 Specification for RPI M15 M20 M30 eks Sp pino Relative humidity 0 10096 non condensing Environmental category Outdoor wet locations Protection degree IP65 Electronics Pollution degree Il Overvoltage category AC output Ill DC Input ll Maximum backfeed current 0 to the array Galvanic isolation NO Safety class Class metal enclosure with protective earth Weight 67 2kg 67 2kg 72 2kg Dimensions 960 x 612 x 278 mm Connectors Weather resistant connectors DC INPUT Solar side Maximum input power 16 5kW 22 kW 33kW
18. interfaces of M15 M20 M30 13 Figure 3 7 Air outlet illustration i 13 Figure 4 1 Screw the mounting bracket esee 15 Figure 4 2 Correct and incorrect installation illustration 16 Figure 4 3 Proper installation gap 17 Figure 5 1 Connection of a system for floating DC inputs 18 Figure 5 2 Connection of system with positive negative ground 19 Figure 5 3 Strippingthe Wile a illa 21 Figure 5 4 AC plug illustrationfor M8 M10 M12 M15 M15A M20 M20A 22 Figure 5 5 AC plug illustration for Ma 23 Figure 5 6 DC Wiring illustration o 25 Figure 5 7 Communication module 26 Figure 5 8 Multi inverter connection illustration 27 Figure 5 9 Dry contact port amp Assionments nne 28 Figure 6 1 Power vs frequency characteristic 30 Figure 6 2 cosq P characteristiC ii 31 Figure 6 3 Q U characteristiC i 32 Figure 6 4 Borderlines of the voltage profile of a type 2 generating plant at the network connection point i 34 Figure 6 5 FRT characteristiC i 34 Figure 7 1 LCD display amp control panel 35 Figure 7 2 Select county Dag ioter Lets dba sdb dae 36 Figure 7 3 Select language page EEN 36 Figure 7 4 Home page EE 37 Figure 7
19. voltage gt 250 Vdc Start up power 40W Parallel inputs 1 MPP tracker MPP tracker Separate inputs 2 MPP trackers Absolute maximum voltage 1000V Maximum power MPPT range Balanced inputs 50 50 355 820Vdc 470 820Vdc Unbalanced inputs 67 475 820Vdc 635 820Vdc Unbalanced inputs 33 235 820Vdc 310 820Vdc Number of inputs 4 pairs MC4 Rated current 22A 2 22A 2 Maximum short circuit 24A 24A current per MPPT Isc 67 AC OUTPUT GRID SIDE Nominal power 15kVA 20kVA Maximum power 15 75kVA 21kVA Voltage 3Ph 230 400Vac Nominal current 22A Maximum current 24A 32A Inrush current 150A 100us 150A 100us Maximum output fault 22A current rms Maximum output over current 40A protection 50 Hz models 47 53 Hz Frequency 60 Hz models 57 63 Hz Total harmonic distortion 3 96 gt 0 99 Q full power Adjustable 0 80 leading 0 80 lagging DC current injection 0 596 rated current Tare loss lt 2 W Maximum efficiency 98 3 98 4 EU efficiency 97 9 98 1 3 Ph N PE 3 phase AC plug that meets IP67 and specifications in table 5 2 Power factor AC connector Fuse N A Please connect to an external protection device 1 25 rated current SYSTEM INFORMATION COMMUNICATION Black on white graphical LCD display User interface 365 days data logger and real time clock 30 events record Externalcommunication 2 RS 485 connections 68 REGULATIONS
20. 5 Menu P Jaa 37 Figure 7 6 Power meter page EEN 37 Figure 7 7 Energy log flow chat 38 Figure 7 8 Event log flow chart REENEN 38 Figure 7 9 Operation data flow chat 39 Figure 7 10 Inverter information page ssssnseerrsssrreerrrrrrrrerrrrerrrenrrrenrene 39 Figure 7 11 Setting Me et 40 Figure 7 12 Personal setting page i 40 Figure 7 13 Coefficient setting page EE 41 Figure 7 14 Install setting page User mode nsssnesnsenenersrnrerrrenrrreerrrenr nne 42 Figure 7 15 Insulation setting ii 42 Figure 7 16 Install setting page Installer mode nnnnnnnnnnnnnnnnnnnnneennnennnn 42 Figure 7 17 Grid setting page ENEE 43 Figure 7 18 Active Reactive powersetting page sssnsssrreeerrrerrresrrrerren 44 Figure 7 19 Power limit setting Dade 45 Figure 7 20 Power vs frequency setting Dae s sssensssrreeerrrerrresrrrerren 45 Figure 7 21 Constant cosq setting page 46 Figure 7 22 cosg P setting page EEN 46 Figure 7 23 Constant Reactive Power setting page ssssseerrrerrreerreereen 47 Figure 7 24 Q U setting page 47 Figure 7 25 FRT setting page ii 48 Figure 8 1 dissembling fan connections 49 Figure 8 2 disassembling fan OvervieW ssssssssssssrreerrererrrrrrrrerrrrerrrenrrne 50 Figure 8 3 Disassembling fan ii 50 Figure 8 4
21. AC plug sure it connects to inverter Actual utility voltage is under 1 Check the utility voltage connection to the the UVR setting inverter terminal Incorrect country or Grid Check country amp Grid setting setting Check the connection in AC plug AC Volt Low 3 Wrong connections in AC plug 4 Replace fuses FUC1 3 and check all One or more internal fuses are switching devices in boost amp inverter stages broken Check the detection circuit inside the inverter Detection circuit malfunction 1 Actual utility voltage is over 1 Check the utility voltage on the inverter the OVR setting terminal 2 Utility voltage is over the Slow 2 Check the utility voltage on the inverter AC Volt High OVR setting during operation terminal 3 Incorrect country or Grid 3 Check country amp Grid setting setting 4 Check the detection circuit inside the inverter 4 Detection circuit malfunction 54 Solar1 High Solar2 High Actual Solar1 voltage is over 1000Vdc Detection circuit malfunction Actual Solar2 voltage is over 1000Vdc Detection circuit malfunction Modify the solar array setting and make the Voc less than 1000Vdc Check the detection circuit inside the inverter Modify the solar array setting and make the Voc less than 1000Vdc Check the detection circuit inside the inverter Insulation PV array insulation fault Large PV array capacitance between Plus to
22. Disassembling air OUtlets ene 50 Table Section Description Page Tapie Ree ane EE 10 Table 5 1 Recommended upstream protection 20 Table 5 2 Wire size of AC mput enne 20 Table 5 3 The wiring system of the inverter 23 Table 5 4 Maximum rating of input power 24 Table 5 5 Gable SIZe x lilla 24 Table 5 6 Definition of RS 485 pm 26 Table 5 7 RS 485 data format iii 27 Tabel 5 8 Terminal resister setting i 27 Tabel 5 9 EPO functions ii 28 Table 7 T LED NANA SG 36 Table 7 2 Grid setting parameiers 43 Table 9 1 Measurement and message 51 Table 9 2 Error Message 54 Table 9 3 Warning Message e 55 Table 9 4 Fault Message 56 Table 11 1 Specification for RPI M8 M10 M12 eese 61 Table 11 2 Specification for RPI M15 M20 Ma 64 Table 11 3 Specification for RPI M15A M OA 67 1 General Information 1 1 About this Manual Congratulations on the purchase of your Delta RPI M8 M10 M12 M15 M15A M20 M20A M30 grid tied solar inverter This manual will assist you in becoming familiar with this product Please observe all safety regulations and take into account technical connection conditions required at your local grid utility 1 2 General Warnings Notes on Safety Careful handling of the product will contribute to service li
23. TA brand RPI M8 RPI M10 RPI M12 RPI M15 RPI M15A RPI M20 RPI M20A RPI M30 1 4 Product Description This device is a 3 phase grid tied solar inverter It converts direct current DC electricity from the PV array into 3 phase alternating current AC which feeds the excess generated power back to the local grid This inverter allows for a wide voltage range 200 1000V and has a high performance efficiency and user friendly design and operation Please note these devices do not support off grid functionality The features for RPI M8 M10 M12 M15 M15A M20 M20A M30 are shown below Features Power Rating 8 10 12 15 20 30 kVA 3Phase Grid tie Transformerless solar inverter Maximum efficiency gt 98 96 Europe efficiency 297 596 Reactive power capability Cap 0 8 Ind 0 8 Low output current harmonic distortion THD 396 Q full load 2 MPP Trackers Record up to 30 event logs 5 LCD display A AAA 1 5 How it Works The operation of solar inverter is shown as the figure 1 1 In order to save energy and electricity solar inverter convert the DC input power supplied from the PV Array into 3 phase AC output power to Grid Solar Inverter Electrical Grid PV Array 3PH 3 phase N PE DC Distribution AC Distribution box box Surge arrestor Surge arrestor AC breaker Fuse DC switch Figure 1 1 Solar system operation illustration 1 6 Additi
24. ase refer to 7 2 6 4 2 Power vs Frequency for the settings procedure P Pm Gradient fstart f stop frecovery fstart fstop 6 1 a 6 1 b Figure 6 1 Power vs frequency characteristic 30 6 2 Reactive Power Control According to BDEW With active power output it must be possible to operate the generating plant in any operating point with at least a reactive power output corresponding to a active factor at the network connection point of cos 0 95 underexcited to 0 95 overexcited Values deviating from the above must be agreed upon by contract In the consumer reference arrow system see Annex B 4 that means operation in quadrant Il under excited or Ill overexcited With active power output either a fixed target value for reactive power provision or a target value variably adjustable by remote control or other control technologies will be specified by the network operator in the transfer station The setting value is either a a fixed active factor cosq or b a active factor cosq P or C a fixed reactive power in MVar Or d a reactive power voltage characteristic Q U 6 2 1 Fixed Active Factor cos Configurations can be made to set the power factor from Cap 0 8 to Ind 0 8 inverter would stop reactive power control if output power is below 10 rated power 6 2 2 Active Factor cosq P Once user enables this method inverter will deliver the reactive current according to output active power in that moment The below
25. ate securely on the wall before attaching the inverter onto the mounting plate 326 12 8 931 36 6 Back view 260 10 2 14 M6 Screw M6 Screw Wall e 3 0 gt 70cm gt 80cm gt 80cm FT M6 Screw 6 Inverter 1 Inverter 2 30 0 s I f 192 8 A 97 8 126 12 gt HY M6 Screw 6 ind RS Am eol y Figure 4 1 Screw the mounting bracket 15 Figure 4 2 Correct and incorrect installation illustration CAUTION The bracket supplied with the unit is specially designed and should be the only mounting device used for the unit lt is recommended to install the inverter in a suitable location which offers non obscured and safe access in turn ensuring easy access for service and maintenance Please leave an appropriate gap in between units when installing several solar inverter systems Please install solar inverter at an eye level to allow easy observation for operation and parameter setting Ambient temperature 20 C 60 C power derating above 40 C Itis essential to ensure sufficient space for product operation as shown in Figure 4 3 16 60 CM 60 CM 60 CM gt 60 CM gt 60 CM Figure 4 3 Proper installation gap 17 5 Wiring 1 ED ET m n 5 1 Preparation before Wiring Ensure voltage values and polariti
26. aults to support the network voltage during a network fault by feeding a reactive current into the network amp not to extract from the medium voltage network after fault clearance more inductive reactive power than prior to the occurrence of the fault These requirements apply to all types of short circuits i e to single phase two phase and three phase short circuits Just like in the Transmission Code 2007 7 a distinction is made in these guidelines between type 1 and type 2 generating plants with regard to their behaviour in the event of network disturbances A type 1 generating unit exists if a synchronous generator is directly only through the generator transformer connected to the network All other plants are type 2 generating units The following conditions shall apply to type 2 generating plants taking the Transmission Code 2007 Section 3 3 13 5 into account e Generating units must not disconnect from the network in the event of voltage drops to 0 Uc of a duration of lt 150 ms e Below the blue line shown in Figure 2 5 1 2 2 there are no requirements saying that generating plants have to remain connected to the network Voltage drops with values above the borderline 1 must not lead to instability or to the disconnection of the generating plant from the network TC2007 3 3 13 5 section 13 extended to asymmetrical voltage drops If the voltage drops at values above the borderline 2 and below the borderline 1
27. ce set cannot be reset Once a the correct password has been entered access to configure the Inverter ID Insulation RCMU Reconnection Time Ramp up Power and AC Connection will be granted CAUTION The following settings can only be adjusted by installers or engineers Changing these settings may result in damage to the inverter and other equipment Insulation Inverter will measure the impedance between the Array and PE before connecting to grid If the impedance is lower than the value that is set in Insulation Settings inverter will stop connecting to grid There are 6 modes users can select in Insulation settings ON Positive Ground Negative Ground DC1 Only DC2 Only and Disable After an analysis has been made for the site the impedance should be set to best suit the environment of the installation DC Injection Inverter will shutdown if the DC component in the AC current is over the limit RCMU If there is a leakage current between the input and output which exceeds the limit inverter will shutdown immediately Reconnction Time The time before the inverter connects to grid Ramp up Power The rate of increase in the output power min 4 AC connection Depending on available are 3P3W and 3PAW Password 21 Jun 2010 13 50 Install Settings 21 Jun 2010 13 50 Inverter ID 001 Insulation p gt RCMU ON ENT 4 D j Country ItalyMV v E Grid Settings Reconne
28. ch is shown as in Figure 5 6 The connection shall be coherent with the indication marked on inverter PV KBT4 6 II HI Zem tij PV KST4 6 II Figure 5 6 DC Wiring illustration 25 5 4 Communication Module Connections The Communication Module supports the functions of communication with a computer There are two types of modules One has RJ45 type RS 485 connector and the other has terminals type RS 485 connector Terminal Resistor GND RS 485 Dry contact Wii 3A 28V EPO E Emergency Power off N Emergency Power off RJ45 type l Terminals type Figure 5 7 Communication module 5 4 1 RS 485 Connection The pin definition of RS 485 is shown as in table 5 6 Installers should switch ON the terminal resistor when single inverter is installed The wiring of multi inverter connection is shown as figure 5 8 Installers should switch ON terminal resister at the first and last devices of the RS485 chain as shown in Figure 5 8 The other terminal resisters should be switched OFF Please refer to table 5 8 for the terminal resister setting Table 5 6 Definition of RS 485 pin DATA RJ45 type Terminals type 26 Terminal Resister 120 1 2W DATA to DATA Terminal Resister 120 Q 1 2W DATA to DATA Data Format Pin Layout Baud rate 9600 PIN FUNCTION a Se RS485 USB Parity N A Or RS485 RS232 Figure 5 8 Multi inverter conn
29. connection point RPI M8 M10 M12 M15 M15A M20 M20A M30 implements the FRT behavior as the figure below in area 1 Keep normally operate 2 Feed in reactive current according to AU Un and K factor 3 Short time disconnect 4 Long time disconnect A l5 In Ugrid Unom A K factor Fault occurence Figure 6 5 FRT characteristic 34 T Turn on off PV inverter WARNING BURN HAZARD The enclosure temperature may exceed over 70 C while operating To avoid injury do not touch the surface of the inverter whilst the unit is in operation After installation please ensure the AC the DC and communication connection are correct Switch on the DC switch When enough power is generated from the PV array the device will operate automatically and will initially self test This self test takes approximately 2 minutes and will occur at first start up of the day The display on the inverter includes a 320x240 pixel LCD display and LED indicator lights to indicate inverter status The green and red colour LED indicator light represents different inverter statuses A NELTA RPI Commercial E Today 47kWh 21 Jun 2010 13 50 Runtime 8 2Hrs Power 12103W On Grid LCD Display EXIT Exit Menu ENT Enter Menu or Confirm LED Indicator GRN RED Down Move Down UP Move Up Figure 7 1 LCD display amp control panel 35 Table 7 1 LED indicator Condition Green LED Red LED Standby or Countdown FLASH OFF Pow
30. ction Time 60 s Ramp up Power 20 m Inverter ID Insulation RCMU Country Grid Settings ItalyMV 60 s 20 Reconnection Time Ramp up Power 96 m the site conditions the two systems Install Settings 21 Jun 2010 13 50 AC Connection 3P4W Figure 7 15 Insulation setting 1200 kohm The system will add the options DC Injection Return to Factory Country and Grid Setting once the technician password has been entered In Grid Setting selection technician can adjust the protection parameters OVR UVR OFR UFR etc to Utility Before setting of the protection to Utility please set the country as Custom Returning the inverter to factory settings will revert the inverter setting back to default and remove all event and energy records Install Settings 1 2 21 Jun 2010 13 50 Inverter ID Insulation RCMU DC Injection Return to Factory Yes No Country ItalyMV Grid Settings Install Settings 2 2 21 Jun 2010 13 50 Reconnection Time Ramp up Power AC Connection Figure 7 16 Install setting page Installer mode 42 Grid Settings 1 4 2120101550 276 0 V 276 0 V Vac High On 253 0 V Vac High On Slow 253 0 V Vac High Off T 05s Vac High Off Slow T 05s Vac Low Off 184 0 V Vac Low Off Slow 184 0 V Vac Low On 195 5 V Vac Low On Slow 195 5 V Vac Low Off T
31. ctionality as the Vac Low Off but the value must be set higher Same functionality as the Vac Low On but the value must be higher Same functionality as the Vac High Off T but the time must be longer Fac High Off Fac High On The inverter will be disconnected from grid if the AC frequency rises to this value The inverter will be reconnected to grid if the AC frequency drops to this value Fac High Off T Fac Low Off If AC frequency reaches the Fac High Off value the inverter will be disconnected in this time Inverter will be disconnected from if the AC frequency drops to this value Fac Low On Fac Low Off T Inverter will be reconnected to grid if the AC frequency rises to this value If AC frequency reaches the Fac Low Off value the inverter will be disconnected in this time Reconnection Time The time before the inverter reconnects to grid 7 2 6 4 Active Reactive Power Control User can enter this page only when the country is sets as Germany LV Germany MV Italy LV or Italy MV User has to enter user s password before enter this page Settings 21 Jun 2010 13 50 Password 21 Jun 2010 13 50 Active Reactive Power 214 Jun 2010 13 50 Personal Settings Coefficients Settings Install Settings Active Reactive Power Contro FRT v Power vs Frequency gt y i LI LI Constant cosp EJ 7v EJ cosqo P Constant Reactive Pow
32. dc gt 250 Vdc Parallel inputs 1 MPP tracker Separate inputs 2 MPP trackers 1000Vdc MPPT range at Nominal Power Balanced inputs 50 50 280 850 Vdc 350 850 Vdc 420 850 Vdc Unbalanced inputs 67 330 850 Vdc 350 850 Vdc 420 850 Vdc Unbalanced inputs 33 280 850 Vdc 350 850 Vde 420 850 Vdc Number of inputs 4 pairs MC4 Each MPPT 17A Each MPPT 20A Each MPPT 20A Rated current Total 30A Total 30A Total 30A 61 gt 3 elele z 581931518813 5192 6 3 3 2 3 2 3 5 3 lt XP es cia Lec 2 O gt 3 5 9 m 3 iz D 3 e 616 D O 2 29580 Oo O 3igi2 egieisia 5 D Qo 3 D oS la lO NRS 7 o o 92 Q SES F lala 2 o D P 16 x alz S an eA D Q Q 3 E joj Q 2 S EE ct Sll a O0 L O o 5 D olo E 3 D Q 3 zzi 210 S o iola o lt o a 10 c et Di D 2 Q Q D D D k Maximum short circuit 24 A 24 A current per MPPT Isc AC OUTPUT GRID SIDE Nominal power 12kVA Maximum power 12 6kVA 11 6A 17 4A Maximum current 12 8A 19 2A Inrush current 150A 100us 150A 100us 150A 100us Maximum output fault 22A 22A 22A current rms Maximum output overcurrent 16A 20A 25A Nominal current lt Q et S Q D protection 50 Hz model 47 53 Hz 60 Hz model 57 63 Hz Total harmonic distortion lt 3 gt 0 99 full power Adjustable 0 80 leading 0 80 lagging DC current injection lt 0 5 rated current Maximum efficiency 98 2 98 3 98 3 EU
33. ection illustration Table 5 7 RS 485 data format RS 485 Data format Baud rate 9600 19200 or 38400 Data bit 8 Tabel 5 8 Terminal resister setting 27 5 4 2 EPO Functions RJ45 type Communication Module provides 2 sets of emergency power off function EPO1 and EPO2 Terminals type Communication Module only has 1 set of EPO EPO1 When the outer external switch is shorted the inverter will shutdown immediately Tabel 5 9 EPO functions Short EROI Pin1 amp Pin2 Short EPO2 pin4 amp Pin5 5 4 3 Dry Contact Connection RPI series provides 1 set of Dry Contact function When inverter is on grid Com amp NO2 will be shorted When the Fan Fail is detected Com amp NOT will be shorted Common Pin Fault On Grid Figure 5 9 Dry contact port amp Assignments 28 6 Active Reactive Power Control and Fault Ride Through Installers can adjust Active Reactive power control only when Grid System are set to Germany MV Germany LV Italy LV or Italy MV a password is required to change these settings Fault ride through FRT can only be adjusted when Grid System is set to Germany MV Italy MV or Italy LV There are 2 settings for active power control and 4 settings for reactive power control that can be configured based on the requirement of the local network operator It can be configured to have active power control and or one of the reactive power control functions 6 1 Active Power Control
34. eform is abnormal Detection circuit malfunction The ambient is over 60 C The installation is abnormal 2 Detection circuit malfunction 1 Ambient temperature gt 90 C or lt 30 C 2 Detection circuit malfunction 1 Check the utility waveform Grid connection of inverter need to be far away from non linear load if necessary Check the detection circuit inside the inverter Check the installation ambient and environment Check the detection circuit inside the inverter Check the installation ambient and environment Check the detection circuit inside the inverter RTM1 Temperature Low HW NTC2 Fail HW NTC3 Fail HW NTC4 Fail Ambient temperature is lt 30 C Detection circuit malfunction Ambient temperature gt 90 C or lt 30 C Detection circuit malfunction Ambient temperature gt 90 C or lt 30 C Detection circuit malfunction Ambient temperature gt 90 C or lt 30 C Detection circuit malfunction Insufficient input power Auxiliary power circuitry malfunction Detection circuit malfunction Insufficient input power Auxiliary power circuitry malfunction Detection circuit malfunction Check the installation ambient and environment Check the detection circuit inside the inverter RTM1 RTB1 RTG1 and RTH1 Check the installation ambient and environment Check the detection c
35. er Q V Figure 7 18 Active Reactive powersetting page 44 7 2 6 4 1 Power Limit The power limit can be set by the percentage of actual rated power The Mode will turn the power limiting on and off Active Power Control 21 Jun 2010 13 50 Set Poin Actual Rated Power Mode 100 96 Rated ON Figure 7 19 Power limit setting page 7 2 6 4 Power vs Frequency Please notice the gradient is different between Italy and other countries Italy BT MT used to calculate the frequency of zero power le Fstop Fstart Gradient 50 For other countries ex Germany LV or MV Gradient means the slope of power reduction ie xx Hz Recovery time is accessible only if Country is set as Italy BT or MT This means If the frequency is back to normal before the time runs out the inverter has to stay on the power at that certain period of time and it cannot increase the power Active Power Control 21 Jun 2010 13 50 Start Frequency Stop Frequency Recovery Frequency Statism Recovery Time Mode Actual 50 30 40 300 ON P P Pm Pm Hz Statism Hz e Hz s f Hz fstart fstop f recovery fstart fstop Figure 7 20 Power vs frequency setting page 45 7 2 6 4 Constant cos When this Mode is activated the inverter will maintain the power factor as a constant value The range is from Cap 0 80 to Ind 0 80 React
36. er ON ON OFF Error or Fault OFF ON Night time No DC OFF OFF Bootloader mode FLASH 1 ON 1s OFF 1s 2 ON 1s OFF 1s Green and Red are interleaving On the first start up the country and language has to be set The system will show the main menu after these are set Select Country 1 3 21 Jun 2010 13 50 Confirm Country 24 Jun 2010 13 50 Australia Austria Belgium China Czech England France Are you sure to set county XXXXXXXX Deutsch Francais Italiano Espanol Nederlands Figure 7 3 Select language page 36 7 1 Home Page When inverter is operating normally the LCD will display the homepage as shown in Figure 7 4 user can get the information of output power inverter status E today date and time Today Energy E Today 47kWh 21 Jun 2010 13 50 Day Time Today Runtime Runtime 8 2Hrs Power 12103W Output Power Inverter Status Today Power Curve Figure 7 4 Home page 7 2 LCD Flow Chart Press the EXIT button to enter the menu page Figure 7 5 The option E today is the homepage Power Meter T 2 1 2042009 1350 Energy Log 1 2 2 Event Log 7 2 3 Power Meter Operation Data 7 2 4 Energy Log Inverter Information 7 2 5 Event Log Setting 7 26 Operation Data Inverter Information Setting Figure 7 5 Menu page 7 2 1 Power Meter This page shows the information about input and output power Power Meter 21 Jun 2010 13 50 Output P 1480 W 6 4 6 6 Today Energy
37. es are correct When grounding the solar array an isolation transformer is required due to the RPI series not having galvanic isolation between the DC input and AC output The ground fault detection is a fixed internal setting It cannot be modified Whole system wiring and connections can be seen in Figure 5 1 and 5 2 Inverter can accept DC inputs in parallel 1 MPP tracker 2 parallel inputs Different DC connection type needs different settings of insulation detection About setting please refer to 7 2 6 3 Install Setting PV Array 2 DC Wiring Parallel or Separate oS a Gef 1 AC Wiring Some models can support 3P3W Communication system please refer to table 5 3 Wiring Figure 5 1 Connection of a system for floating DC inputs 18 DC Distribution box Isolated transformer Utility 3Ph 400Vac Some models can support 3P3W system please refer to table 5 3 Figure 5 2 Connection of system with positive negative ground WARNING SHOCK HAZARD Note Whenever a PV array is exposed to sunlight a shock hazard may exist due to output wires or exposed terminals To reduce the risk of shock during installation cover the array with an opaque dark material and ensure that the Disconnect Device in the inverter is set to OFF before commencing any wiring 19 5 2 AC Grid Connection 3 Phase PE or 3 Phase N PE WARNING Death and serious injuries may occur Before AC wir
38. exterior objects 3 2 1 LCD Display and Buttons RPi Commercial E Today 47kWh 21 Jun 2010 13 50 Runtime 8 2Hrs Power 12103W On Grid LCD Display EXIT Exit Menu Down Move Down ENT Enter Menu or Confirm LED Indicator GRN RED UP Move Up Figure 3 4 LCD display and contro panel 12 AC Connector DC Switch 230 400Vac 3Ph Communication Fan 1 or 2 RS 485 2 EPO 2 Dry Contact 2 Cl String3 e ir String4 Figure 3 5 Input Output interfaces of M8 M10 M12 M15A M20A AC Connector DC Switch 230 400Vac 3Ph Communication Fan 4 RS 485 2 EPO 2 Dry Contact 2 Figure 3 6 Input Output interfaces of M15 M20 M30 Eidel eer O String3 String2 H 6X String4 002 String4 String5 String6 Figure 3 7 Air outlet illustration 13 4 Installation 4 1 Installing Location WARNING Do not install the unit near or on flammable surfaces Please mount the unit tightly on a solid smooth surface CAUTION The unit should not be installed in a direct sunlight 4 2 Mounting This unit is designed to be wall mounted Please ensure the installation is perpendicular to the wall and the AC plug at the base of the unit Do not install the device on a slanting wall The dimensions of the mounting bracket are shown in the figure below There are 12pcs of M6 screws required for mounting plate Fix the supplied wall mount pl
39. fe durability and reliability Both are essential to ensure maximum yield from your product As some of the solar inverter models are heavy two people may be required for lifting purposes CAUTION During operation of electrical devices certain parts are under dangerous voltage Inappropriate handling can lead to physical injury and material damage Always adhere to the installation regulations Installation may only be conducted by certified electricians WARNING Repair work on the device should ONLY be carried out by the manufacturer No user serviceable parts inside Please observe all points in the operation and installation manual Isolate the device from the grid and the PV modules before undertaking work on the device DANGER To avoid risk of electrical shock do not open the solar inverter The inverter contains no internal user serviceable parts Opening the inverter will void the warranty Dangerous voltage is present for 5 minutes after disconnecting all sources of power Remember that the unit has a high leakage current The PE conductor MUST be connected prior to commencing operation WARNING BURN HAZARD The unit may reach very high temperatures and the device surface can become quite hot Sufficient cooling time is necessary for optimal yield 1 3 Validity This user manual describes the installation process maintenance technical data and safety instructions of the following solar inverter models under the DEL
40. figure is an example Please refer to 7 2 6 4 4 cos P for the settings procedure coso Cap 0 85 EEE P Pn nd 0 85 etr Figure 6 2 cosg P characteristic 31 6 2 3 Fixed Reactive Power When this function is enabled the inverter will send reactive power ie Q in relation to the fixed reactive power setting The range is Cap 53 to Ind 53 6 2 4 Reactive Power Voltage Characteristic Q U After selecting Q U control User can adjust Q against the Grid voltage operation curves shown in Figure 6 3 Qi limit CurveA CurveB Figure 6 3 Q U characteristic 32 6 3 Fault Ride Through FRT According to BDEW 25 12 Dynamic network support Dynamic network support means voltage control in the event of voltage drops within the high and extra high voltage network with a view to avoiding unintentional disconnections of large feed in power and thus network collapse In the light of the strong increase in the number of generating plants to be connected to the medium voltage network the integration of these plants into the dynamic network support scheme is becoming ever more important Consequently these generating plants must generally participate in dynamic network support even if this is not required by the network operator at the time of the plant s connection to the network That means that generating plants must be able in technical terms notto disconnect from the network in the event of network f
41. following information serial number firmware version installation date and inverter ID If user wants to change inverter ID please refer to 7 2 6 3 Install Setting 21 Jun 2010 13 50 Inverter Information Serial Number DSP Version Red Version Comm Version Installation Date Inverter ID Country AE46000006 1 80 1 17 1 99 05 Jan 2009 001 Custom Figure 7 10 Inverter information page 39 7 2 6 Settings The Settings page includes Personal Coefficients Installation Active Reactive Power Control and FRT Settings Settings 21 Jun 2010 13 50 Personal Settings Coefficients Settings Install Settings Active Reactive Power Control FRT Figure 7 11 Setting page 7 2 0 1 Personal Setting The language date time screensaver LCD brightness and contrast can be set in the Personal Settings Personal Settings 21 Jun 2010 13 50 English Date 21 06 2010 DD MM YYYY Time 13 50 Screen Saver 5 min Brightness 3 Contrast 2 Figure 7 12 Personal setting page 40 7 2 6 2 Coefficient Setting Users can set the following parameters according their needs Coefficient Settings 21 Jun 2010 13 50 CO2 Saved kg kWh 186 Earning Value kWh 2 50 Currency Figure 7 13 Coefficient setting page 7 2 6 3 Installation Settings A password is required to enter the Installation Setting These settings are different for end customers and installers The password on
42. ing please ensure AC breaker is switched off 5 2 1 Required Protective Devices and Cable Cross sections It is recommended to install upstream circuit breakers between AC side and inverter side for over current protection Table 5 1 Recommended upstream protection Model Upstream circuit breaker RPI M8 20A RPI M10 20A RPI M12 30A RPI M20 40A 60A RPI M30 To solar inverter AC plug G N L1 L2 L3 The AC cable must be jacked and meet the specification in table 5 2 Table 5 2 Wire size of AC input Mode Current Rating Wire size Torque Temperature RPI M8 RPI M10 RPI M12 RPI M15 40 A 5 8 mm 0 7 N m Meet UL 10070 RPI M15A RPI M20 RPI M20A RPI M30 10 mm or 6 AWG Meet UL 10070 20 AC s wiring can be separated into 3 phase and PE 3P3W or 3 phase N and PE SPAW Only some models can support 3P3W system Please refer to table 5 3 The following instruction is based on 3PAW If the grid system is 3P3W please ignore the description of N CAUTION Machine and equipment damage may occur Make sure to choose the correct wire size AC cable Failure to follow these instructions may cause AC plug damage Follow the steps below to strip the wires before assembling the AC plug a Trim the L1 L2 L3 and N wire to 52 5 mm 2 0 inch b Strip 12 mm 0 5 inch of insulation from all wire ends c Remove 55 mm 2 2 inch of AC cable outer jacket 52 5 mm T 2 0 in
43. ing Procedure If it is necessary to put the device out of operation for maintenance and or storage please follow the instructions below WARNING To avoid injuries please follow the procedures 909 9999 Switch off AC circuit breaker to disconnect with electricity grid Switch off DC switch to disconnect with DC source Switch off the PV array switch to disconnect from the PV array Use proper voltage meter to confirm that the AC and DC power are disconnected from the unit Remove the AC wiring immediately to completely disconnect from electricity grid Remove the DC wiring to disconnect from PV Array Remove the communication module RS 485 connection from the computer connection After completing the above steps the inverter can be removed 60 11 Technical Data 11 1 Specification Table 11 1 Specification for RPI M8 M10 M12 RPLMG Remo Reit Powder coated aluminum 20 60 C full power up to 40 C GENERAL Enclosure Operating temperature O Oo o o ct 5 Q gt amd E i D 2000 m Relative humidity 0 100 non condensing Environmental category Outdoor wet locations Protection degree IP65 Electronics AC output IIl DC Input ll to the array NO Safety class Class metal enclosure with protective earth Weight 40kg 40kg 625 x 612 x 278 mm Weather resistant connectors Connectors 9kW 11kW 13 2kW 8 8kW 13 2kW 10 5kW 15 5kW 635Vdc 200Vdc 1000 V
44. ircuit inside the inverter RTB1 Check the installation ambient and environment Check the detection circuit inside the inverter RTG1 Check the installation ambient and environment Check the detection circuit inside the inverter RTH1 Check the input voltage must gt 150Vdc Check the auxiliary circuitry inside the inverter 3 Check the detection circuit inside the inverter Check the input voltage must gt 150Vdc Check the auxiliary circuitry inside the inverter Check the detection circuit inside the inverter 56 HW Efficiency HW COMM2 HW COMM Ground Current Insufficient input power Auxiliary power circuitry malfunction Detection circuit malfunction Insufficient input power Auxiliary power circuitry malfunction Detection circuit malfunction Insufficient input power Auxiliary power circuitry malfunction Detection circuit malfunction The calibration is incorrect 2 Current feedback circuit is defective Red CPU is idling The communication connection is disconnected DSP is idling The communication connection is disconnected The communication circuit malfunction PV array insulation fault Large PV array capacitance between Plus to Ground or Minus to Ground 3 Either side of boost driver or boost choke malfunction Detection circuit malfunction Check the input voltage mus
45. ive Power Control 21 Jun 2010 13 50 Ind 0 90 ON Figure 7 21 Constant cosq setting page 7 2 6 4 4 cos P The output power factor would be affected by feeding power Lock in voltage and Lock out voltage are only adjustable if the country setting is either Italy BT or Italy MT The Inverter will feed in reactive power depending on the active power once the Grid voltage is higher than the Lock in voltage It will revert back to active power when Grid voltage is lower than Lock out voltage For the countries other than Italy cosg P control will not affect the Grid voltage Reactive Power Control 21 Jun 2010 13 50 Maiers Cap 0 90 B Lower Power cos a Upper Reactive Power Control 21 Jun 2010 13 50 Lock out Voltage Mode Lower RO Me c Limit Power Power Figure 7 22 cosq P setting page 46 7 2 6 4 5 Constant Reactive Power When this Mode is activated inverter will maintain the reactive power as a constant value Reactive Power Control 21 Jun 2010 13 50 REE Mia AA Cap30 Mode OFF Figure 7 23 Constant Reactive Power setting page 7 2 6 4 6 Q U RPI series support two kind of Q U curves Please refer to fiqure 7 24 Reactive Power Control 21 Jun 2010 13 50 Vis 2484 V V2s 2530 V Qs limit Ind 44 96 D Qi limit 211 6 V 9 V2i 2070 V J r Qi limit Cap 44 96 Curve A Q Reactive Power Control 21 Jun 2010
46. lance AC Current High One or more relays are sticking The driver circuit for the relay malfunction One or more relays are abnormal The driver circuit for the relay malfunction The detection accuracy is not correct for Vgrid and Vout Not totally independent or parallel between inputs PV Array short to Ground Driver for boost is defective or disconnected Detection circuit malfunction Driver for boost is defective 2 Voc of PV array is over 1000Vdc 3 Surge occurs during operation Detection circuit malfunction Surge occurs during operation 2 Driver for inverter stage is defective Switching device is defective Detection circuit malfunction Test current loop is broken CSC1 is defective Detection circuit malfunction Test current loop is broken CSC2 is defective Detection circuit malfunction 1 Test current loop is broken 2 CSC3 is defective 3 Detection circuit malfunction Replace the defective relay s Check the driver circuit inside the inverter Replace the defective relay s Check the driver circuit inside the inverter Check the Vgrid and Vout voltage detection accuracy Check the inputs connections Check the PV Array insulation Check the driver circuit for boost inside the inverter Check the detection circuit inside the inverter Check the driver circuit for boost inside the inverter
47. ng DC wiring please ensure that the power switch on the PV array is OFF CAUTION The connection number of PV Array open circuit voltage and power of String 1 and String 2 must be coherent The connection number of PV Array open circuit voltage and power of String 3 and String 4 must be coherent The maximum open circuit voltage of PV Array cannot be higher than 1000V The range of MPP Voltage of Input1 and Input2 shall be in 350 800 Vdc The device installed between PV Array and inverter must meet vv 9 the following specifications a Rated voltage gt open circuit voltage of PV Array b Rated current gt short circuit current of PV Array The input power to the inverter should not higher than the rated power shown in table 5 4 Table 5 4 Maximum rating of input power Type of limit RPI M8 RPI M10 RPI M12 RPI M15 Total input power 8 8 kW 11 kW 13 2 kW 16 5 kW Input1 or Input2 5 9 kW 7 4 kW 8 8 kW 8 25 kW Type of limit RPHM15A RPI M20 RPI M20A RPI M30 Total input power 16 5 kW 22 kW 22 kW 32 kW Input1 or Input2 8 25 kW 11 kW 11 kW 16 kW Table 5 5 Cable size Mode Current Rating Wiresize Temperature _ DC 10A 2 3mm 14 AWG Meet UL 10070 M10 M12 DC 20A 3 5mm 12 ANG Meet UL 10070 5 2 M15A M20A DC 34A 6mm 10 AWG Meet UL 10070 M15 M20 M30 DC 34A 5 6mm 10 AWG Meet UL 10070 24 DC wiring polarity is divided into positive and negative whi
48. onal Information For more detailed information for RPI M8 M10 M12 M15 M15A M20 M20A M30 or other related product information please visit http www deltaww com 2 Installation and Wiring 2 1 Instruction before Installation Due to the variety of users and installation environments it is recommended to read this manual thoroughly before installation Installation of the unit and start up procedures must be carried out by accredited technicians 2 2 Unpacking Unpacking process for RPI M8 M10 M12 M15A M20A is shown as Figure 2 1 Figure 2 1 Unpacking process Unpacking process for RPI M15 M20 M30 is shown as Figure 2 2 Figure 2 2 Wooden case unpacking process 2 3 Package Inspection Unforeseeable events causing damage or movement may occur during shipment Please check for damage on the wooden carton upon receiving your inverter Please check the model number and the serial number on the packaging is identical with the model number and serial number on the unit itself Check if all the accessories are in the package the standard accessories are list as Table 2 1 Table 2 1 Packing list RPI M8 M10 M12 M15 M15A M20 M20A M30 Object PV Inverter RPI M8 M10 M12 M15 M15A M20 M20A M30 solar inverter The Instruction to provide the information User Manual 1 l SS ie of safety Installation specification etc AC Plug 1 Connector for AC connection Wall mounting bracket to mount the solar
49. ration Data 1 4 21 Jun 2010 13 50 Operation Data 2 4 21 Jun 2010 13 50 Input1 Maximum Voltage Vdc Voltage 811 Current A Current 81 25 2 Power W Power 82 11200 Voltage Current Input2 P r Voltage did Voltage Current Current Power Power 51 Operation Data 3 4 21 Jun 2010 13 50 Operation Data 4 4 21 Jun 2010 13 50 Max Min Maximum Temperature Voltage 247 Inside 49 59 3 83 15 7 Current 30 5 Heatsink 1 60 75 5 54 15 3 Power 20311 Heatsink 2 1 74 2 55 15 2 Frequency 50 10 Heatsink 3 52 73 6 15 2 GR zen bonne LE wav menge ofe bonne o 52 31 Input1 Current Maximum The maximum DC Input1 current from history 32 Input1 Power Maximum The maximum DC Input1 power from history 3 L1 Current Maximum The maximum L1 phase current from history 38 L1 Power Maximum The maximum L1 phase power from history 40 L2 Current Maximum The maximum L2 phase current from history 41 L2 Power Maximum The maximum L2 phase power from history 43 L3 Current Maximum The maximum L3 phase current from history 44 L3 Power Maximum The maximum L3 phase power from history 45 Output Voltage Maximum The maximum Grid voltage from history 46 Output Current Maximum The maximum output current from history 47 Output Power Maximum The maximum output power from history 48 Output Frequency Maximum The maximum Grid frequency from history 49 Inside Max
50. sassembling fan overview 8 2 Replace Fan In the event that a fan needs to be replaced user should disassemble the 4 pcs screws around the fans and disconnect the connector right behind the fan bracket Then replace new fan and reassemble the 4pcs screws RPI M8 M10 M12 RPI M15A M20A RPI M15 M20 M30 Figure 8 3 Disassembling fan 8 3 Clean Air Outlets Disassembling the 4 screws of air outlet and cleaning it should be done regularly Figure 8 4 Disassembling air outlets 50 9 Measurement Error message and Trouble Shooting 9 1 Measurement Table 9 1 Measurement and message 21 Jun 2010 13 50 Output 101480 224 v 13 Today Energy 19 Today Runtime 0 0 Hours 15 Today Earning 0 16 Today CO2 Saved 0 0 kg Energy Log Year 21 Jun 2010 13 50 kWh Energy Log Total 21 Jun 2010 13 50 17 Life Energy 29200 kWh 18 Life Runtime 3651 Hours 19 Total CO2 Saved 54312 kg 20 Total Earning 0 4500 3750 3000 2250 1500 750 0 1234567 8 9 10 11 12 Month 21 Peak Month May 2354 kWh 22 E Year 17033 kWh Year CO2 Saved 31681 kg it 2009 Month Energy Log Day 21 Jun 2010 13 50 kW 2010 06 21 20 History Energy Log Month 21 Jun 2010 13 50 2010 06 15 4 8 12 16 20 24 Peak Day 06 92 kWh 27 Peak Hour 01 pm 14 kWh 25 E Month 1447 kWh ay one CO2 Saved 2690 kg 28 E Day 46 kW D ay CO2 Saved 86 kg Exit 2010 05 Ope
51. splay Fuse User interface 365 days data logger and real time clock 30 events record Externalcommunication 2 RS 485 connections 65 REGULATIONS amp DIRECTIVES CE conformity Grid interface Yes VDE0126 1 1 VDE AR N 4105 RD1699 CEI 0 21 Emission Harmonics Variations and flicker EN 61000 6 3 EN 61000 3 12 EN 61000 3 11 Immunity ESD RS EFT Immunity Surge EN 61000 6 2 IEC 61000 4 2 IEC 61000 4 3 IEC 61000 4 4 IEC 61000 4 5 CS PFMF Electrical safety IEC 61000 4 6 IEC 61000 4 8 IEC 62109 1 2 MISCELLANEOUS Cooling Fan 4pcs Enclosure Mounting bracket Aluminum with powder coating 66 Table 11 3 Specification for RPI M15A M20A RPI M20A Enclosure Powder coated aluminum Operating temperature 25 60 C full power up to 40 C Operating Altitude 2000 m Relative humidity 0 10096 non condensing Environmental category Outdoor wet locations Protection degree IP65 Electronics Pollution degree Il Overvoltage category AC output Ill DC Input ll Maximum backfeed 0 current to the array Galvanic isolation NO Safety class Class metal enclosure with protective earth Weight 43kg 43kg Dimensions 625 x 612 x 278 mm Connectors Weather resistant connectors DC INPUT Solar side Maximum input power 16 5kW 22 kW Recommended PV power range 14kW 19kW Nominal voltage 635Vdc Operating voltage 200Vdc 1000 Vdc Startup
52. t 150Vdc Check the auxiliary circuitry inside the inverter Check the detection circuit inside the inverter Check the input voltage must 150Vdc Check the auxiliary circuitry inside the inverter Check the detection circuit inside the inverter Check the input voltage must 150Vdc Check the auxiliary circuitry inside the inverter 3 Check the detection circuit inside the inverter Check the accuracy of current and power Check the current feedback circuit inside the inverter Check reset and crystal in Red CPU Check the connection between Red CPU and DSp Check reset and crystal in DSP Check the connection between DSP and COMM Check the communication circuit Check the insulation of Solar inputs Check the capacitance lt gt GND A lt gt GND must 2 5uF Install a external transformer if necessary 3 Check boost driver amp boost choke Check the detection circuit inside the inverter HW Connect Fail RCMU Fail Power line is disconnected inside the inverter Current feedback circuit is defective 1 RCMU is disconnected 2 Detection circuit malfunction Check the power lines inside the inverter Check the current feedback circuit inside the inverter Check the RCMU connection inside the inverter Check the detection circuit inside the inverter 57 Relay Test Short Relay Test Open Bus Unba
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