User Manual - Delta Electronics
Contents
1. The power behind competitiveness RPI M6A M8A MIOA Operation and Installation Manual www deltaww com yartet Contents 1 General Information 5 1 1 About this Manual 5 1 2 Product Description 5 1 3 Additional Information 9 2 Product OvervVieW 22222 2 0222 22222 2 200 22 6 2 1 Checking Unit and Accessories 6 2 2 Product Label 7 2 3 Exterior Objects 7 3 Installation 2222 2 002 200 00002 2 9 3 1 Unpack the Inverter 9 3 2 Mounting position 10 3 3 Mounting Dimension 11 4 Wiring wan n nnn nnnnnn nnn nnn nee nnn nnn n nnn e eee eeennes 14 4 1 Preparation before Wiring 14 4 2 AC Grid Connection 3 Phase PE or 3 Phase N PE 15 4 2 1 Required Protective Devices and Cable Cross sections 15 4 3 D2. 1 65 Wifi 1 33 Page 1 11 ID 002 Of OAD Country Germany LV Insulation 1200k Baud Rate 9600bps AC connection 3P4W tlo Wi Fi OFF 140 115 150 150 Ethernet 140 115 170 129 Figure 5 8 Inverter information page 26 Turn on off PV inverter 5 3 5 General Settings Language date time and Wi Fi ON OFF can be set in the General Settings gt Language Date and Time Wi Fi OFF Figure 5 9 General Settings page 5 3 6 Install Settings CAUTION The following settings can only be adjusted by installers Changing these settings may result in damage to the inverter and other equipments e 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 page inverter will stop connecting to grid There are 6 modes users can select in Insulation settings ON DC1 Only DC2 Only Plus Grounded Minus Grounded and OFF After an analysis has been made for the site the impedance should be set to best suit the environment of the installation AC connection Depending on the site conditions the two systems available are 3P3W and 3P4W A password is required to enter Install Settings page This page includes Inverter ID Insulation Country and AC connection settings gt Inverter ID 001 Insulation Country Germany LV AC Connection Otto gt Return t
3. P function automatically and disabled it when grid voltage reach lock out voltage V lock out Constant cosphi Ev gt Mode OFF gt Cosphi P upper Ind 1 00 Constant Q P lower 45 Q V E Q lower Ind 0 90 gt P upper 90 E V lock in 241 5V V lock out 230 0V Figure 5 17 Cosphi P page COS Q upper P Pn Q lower P lower P upper Figure 5 18 Cosphi P parameters 30 Turn on off PV inverter 5 3 7 6 Constant Q Like Constant cosphi function users can assign a percentage of reactive power in Constant Q page Constant cosphi Ev gt Mode OFF Cosphi P FiXQ Ind 90 gt Constant Q q av Figure 5 18 Cosphi P parameters 5 3 7 7 Q V Q V is a control mode that inverter will provide reactive power accroding to grid voltage For country Italy MV and Italy LV users can set lock in power and lock out power to assign Q V function operation interval Constant cosphi Ev gt Mode OFF Cosphi P V1s 248 4V Constant Q V2s 253 0V gt Q V E Qs limit Ind 44 gt Vii 211 6V En V2i 207 0V Qi limit Cap 44 T delay 10 00s gt P lock in 20 En P lock out 5 Figure 5 19 Q V page A NELTA 31 Turn on off PV inverter Others Italy MV amp Italy LV V I V Vas Vas Vas Qi limit Vas Qi limit ly __ Qs limit Vail Q Qs limit Vil Q
4. Voj Vai Curve A Curve B Figure 5 20 Q V parameters 5 3 8 FRT Fault ride through Some area requests that inverter should keep connected to grid when grid voltage drops suddenly in few seconds In these areas users can enable FRT function and adjust the parameters to meet the requirement General Settings E E gt Mode OFF Install Settings D Password Dead Band 10 Active Reactive Pwr okok KE Vdrop 090 gt FRT E E t1 0 30s gt U1 20 EN t3 3 00s K factor 2 0 Figure 5 21 FRT page Ugrid Unom 100 Umin Stay connected U1 FS Disconnect from grid Udrop a ia time Fault occurence Figure 5 22 FRT Parameters 32 Maintenance 6 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 appeared 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 Electric Shock Before any maintenance please switch AC and DC power off to avoid risk of electric shock 33 A NELTA Error message and Trouble Shooting 7 Error message and Trouble Shooting ERROR Message Possible cause Action 1 Check the utility frequency on the invert
5. e Inverters provide DC inputs in parallel 2 MPP tracker 3 parallel inputs e Different DC connections type need different settings of insulation detection M M y 1 AC Wiring 2 DC Wiring or l I Ill l e J l 3 co Communication RPI M6A M8A M10A Wiring can also support 3P3W system Figure 4 1 Connection of a system for floating solar array WARNING SHOCK HAZARD 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 14 Wiring 4 2 AC Grid Connection 3 Phase PE or 3 Phase N PE WARNING off Before commencing AC wiring please ensure AC breaker is switched 4 2 1 Required Protective Devices and Cable Cross sections It is recommended to install an upstream circuit breaker between AC side and inverter side for over current protection RPI M6A M8A M10A 20A Table 4 1 Recommended upstream protection To solar inverter AC plug G N L1 L2 L3 The AC cable must be jacked and meet the specifications in table 4 2 Current Rating Wire size Recommended Torque RPI M6A RPI M8A RPI M10A 25A 5 8 mm2 O 7N m Table 4 2 AC input cable requirement Model M6A M8A M10A supports both 3P3W 3 phase and PE and 3P4
6. 13A 19 5A 13A MELTA 41 Technical Data RPI M6A RPI M8A RPI M10A AC OUTPUT GRID SIDE Nominal power 10kVA Maximum power 10 5kKVA Voltage 3Ph 230 400Vac 3phase N PE Nominal current 14 5A Maximum current 16A Inrush current 31A 100us Maximum output fault 13 6A 18 2A 22 4A current rms Maximum output overcurrent protection 11 6A 15 6A 19 2A 50Hz model 47 53Hz 60Hz model 57 63Hz Frequency Total harmonic distortion lt 3 gt 0 99 full power Adjustable 0 80 leading 0 80 lagging Power factor DC current injection lt 0 5 rated current Tare loss lt 2W Maximum efficiency 98 3 98 3 98 3 EU efficiency 97 6 97 9 98 0 3 Ph N PE 3 phase AC plug that meets AC connector IP67 N A Please connect to an external Fuse 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 event record External communication 2 RS 485 connections 42 Technical Data RPI M6A RPI M8A RPI M10A REGULATIONS amp DIRECTIVES CE conformity Yes Grid interface VDE0126 1 1 VDE AR N 4105 RD1699 CEI 0 21 Emission EN 61000 6 3 Harmonics EN 61000 3 2 EN 61000 3 12 Variations and flicker EN 61000 3 3 EN 61000 3 11 Immunity EN 61000 6 2 ESD IEC 61000 4 2 RS IEC 61000 4 3 EFT IEC 61000 4 4 Surge IEC 61000 4 5 CS IEC 61000 4 6 PFMF IEC 61000 4 8 El
7. 6 Install Settings 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 17 MELTA Wiring 4 3 DC Connection from PV Array WARNING When undertaking DC wiring please ensure the correct polarities are connected When undertaking DC wiring please ensures that the power switch on the PV array is OFF CAUTION The connection number of PV Array open circuit voltage and power of all strings in DC1 must be coherent The maximum open circuit voltage of PV Array cannot exceed 1000V Any device installed between PV Array and inverter must meet the following specifications Rated voltage gt open circuit voltage of PV Array 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 4 3 Type of limit RPI M6A RPI M8A RPI M10A Total input power 6 5 kW 8 6 kW 10 8 kW DC1 DC2 3 25 kW 3 25 kW 4 3 kW 4 3 kW 7 1 KW 3 6 kW Table 4 3 Maximum rating of input power M6A DC 10A 2 3mm 14 AWG M8A DC 10A 2 3mm 14 AWG M10A DC 15A 3 5mm 12 AWG Table 4 4 Cable size DC wiring polarities are divided into positive and negative which is shown in Figure 4 5 The connection shall be coherent with the indication marked on inverter PV KBT4 6 I PV KST4 6 I Figure 4 5 DC Plug Wiring illustration 18
8. Wiring 4 4 Communication Module Connections The Communication Module illustration please see figure 4 6 the module supports a RS 485 terminal for communication with a computer VCC GND RS 485 DO Tg 1 lt SMT lable le b mii res nn A Terminal Resistor Communication 1 Dry Contact Digital Input 6 EPO 1 Communication 2 Figure 4 6 Communication module A NELTA Wiring 4 4 1 RS 485 Connection The pin definition of RS 485 is shown in table 4 5 Installers should switch ON the terminal resistor when single inverter is installed The wiring of multi inverters connection is shown as figure 4 7 Installers should switch ON terminal resister at the first and last devices of the RS485 chain as shown The other terminal resisters should be switched OFF Function Pin RPI M6A M8A M10A Table 4 5 Definition of RS 485 pin Terminal Resister 1200 1 2W DATA to DATA Terminal Resister Data Format 120 Q 1 2W Baud rate 9600 19200 or 38400 DATA to DATA E Data bits 8 Stop bit 1 a RS485 USB Parity N A or ens RS485 RS232 Figure 4 7 Multi inverter connection illustration 20 Wiring 4 4 2 Digital Input amp EPO Functions Communication Module provides 6 sets of digital input function K1 K6 and 1 set of emergency power off function EPO When the outer external switch is short circuited the inverter will reduce power or shut
9. on the wall before attaching the inverter onto the mounting plate Figure 3 2 Correct and incorrect installation 10 Installation 3 3 Mounting braket Dimension Figure 3 3 Mounting bracket demension A NELTA 11 Installation M4 Screw M4 Screw TOF RATAR m TARRA ST lilt TLL il y Figure 3 4 Attach inverter to the bracket and fasten with screws PEEN 12 Installation CAUTION The bracket supplied with the unit is specially designed and should be the only mounting device used for the unit It 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 as shown in Figure 3 5 Please install solar inverter at an eye level to allow easy observation for operation and parameter setting Ambient temperature 25 C 60 C power de rating above 40 C y N 2 0G SGe8 v 2 Figure 3 5 Proper installation gap gt 20 CM gt 20 CM A NELTA Wiring 4 Wiring 4 1 Preparation before Wiring e When grounding the solar array an isolation transformer is required due to the RPI M6A M8A M10A not having galvanic isolation between the DC input and AC output Wiring illustrations please refer to Figure 4 1
10. one Check the detection circuit inside the inverter Check the connection of CNP4 to CNM4 Replace CTP5 with new one Check the detection circuit inside the inverter Large Grid harmonics Check the utility waveform Grid connection of inverter need to be far away from non linear load if necessary Switching device is defective Detection circuit malfunction Check all switching devices in inverter stage Check the detection circuit inside the inverter Check the detection circuit for synchronal signal inside the inverter The detection circuit for synchronal signal malfunction 1 Switching device in boost is defective 1 Check all switching device in boost 2 Check the driver curcuit for boost 2 Driver for boost is defective inside the inverter 3 Input current detection circuit malfunction 3 Check input current detection circuit Table 7 3 Fault Message A NELTA 39 De Commissioning 8 De Commissioning If it is necessary to put the device out of operation for maintenance or storage please follow the instructions below WARNING To avoid injuries please follow the procedures e Switch off AC circuit breaker to disconnect with electricity grid e Switch off DC switch to disconnect with DC source e Switch off the PV array switch to disconnect from the PV array e Use proper voltmeter to confirm that the AC and DC power are disconnected from the unit Re
11. C Connection from PV Array 18 4 4 Communication Module Connections 19 4 4 1 RS 485 Connection 20 4 4 2 Digital Input amp EPO Functions 21 4 4 3 Dry Contact Connection 22 5 Turn on off PV inverter 22222 2222222 23 5 1 First startup 23 5 2 Home Page 24 5 3 LCD Flow Chart 24 5 3 1 Power Meter 25 5 3 2 Energy LOG 25 5 3 3 Event LOoQ 26 5 3 4 Inverter Information 26 5 3 5 General Settings 27 5 3 6 Install Settings 27 5 3 7 Active Reactive powerl 28 5 3 8 FRT Fault ride through 32 6 Maintenance 222 2222 222 2222 222 33 7 Err
12. COMM2 The communication connection is disconnected 1 DSP is idling The communication HW COMMT1 connection is disconnected The communication circuit malfunction 37 Error message and Trouble Shooting Action Check the input voltage must gt 150Vdc Check the auxiliary circuitry inside the inverter 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 Check the input voltage must gt 150Vdc Check the auxiliary circuitry inside the inverter 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 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 A NELTA Error message and Trouble Shooting Message Ground Current HW Connect Fail RCMU Fail Relay Test Short Relay Test Open Bus Unbalance HW Bus OVR FAULT Possible cause 1 PV array insulation fault Large PV array capacitanc
13. W 3 phase N and PE A NELTA Wiring CAUTION Machine and equipment damage may occur Make sure to choose proper size for AC cable Please choose the terminals as shown in figure 4 2 for wires crimping Failed to follow these instructions may cause AC plug damage Figure 4 2 Terminal for wire crimping Follow the steps below to strip the wires before assembling the AC plug as shown in Figure 4 3 Remove 55 mm 2 2 inch of AC cable outer jacket Trim the L1 L2 L3 and N wire to 52 5 mm 2 0 inch Strip 12 mm 0 5 inch of insulation from all wires ends Crimp terminals for all wires 52 2 mm i 2 0 in Outer jacket mm mm d 55 mm 2 2 in PE Figure 4 3 Striping the wires 16 Wiring Assemble the AC plug and wires as the procedures shown in figure 4 4 The sequence of L1 L3 can be random However N and PE must be connected correctly 4 2 PN p p d a a if iN D e a Fn CA ix i Vu A Rotate to loose the AC plug y A AC Plug gt Inverter Inverter Rotate gland to Rotate to tighten the inserter i Rolate A PONR R pag fix cable HUT Yy 23 f f L A Ta p m g i f VY J i Cable Cable Len n Ta gt i ng be JI lt f 4 Figure 4 4 AC plug illustration for RPI M6A M8A M10A After wiring installer should choose the AC connection type on the control panel About setting please refer to 5 3
14. ctive 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 Modify the solar array setting and make the Voc less than 1000Vdc N A Check the detection circuit inside the inverter Message AC Current High HW CTA Fail HW CT B Fail HW CTC Fail HW AC OCR HW ZC Fail DC Current High FAULT Possible cause Surge occurs during operation Driver for inverter stage is defective Switching device is defective Detection circuit malfunction 1 Test current loop is broken CTP3 is defective Detection circuit malfunction Test current loop is broken CTP4 is defective Detection circuit malfunction 1 Test current loop is broken CTP5 is defective Detection circuit malfunction Error message and Trouble Shooting Action 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 CNP4 to CNM4 Replay CTP3 with new one Check the detection circuit inside the inverter Check the connection of CNP4 to CNM4 Replace CTP4 with new
15. down immediately Digital Input 6 EPO 1 Figure 4 8 EPO functions Define Short Inverter s action 1 K1 VCC amp K1 No active power 2 K2 VCC amp K2 Maximum 30 active power 3 K3 VCC amp K3 Maximum 60 active power 4 K4 VCC amp K4 Full active power 5 K5 VCC amp K5 Reserved 6 K6 VCC amp K6 Reserved T EPO VCC amp EPO Emergency power off 8 VCC Table 4 6 Definition of digital input amp EPO functions A NELTA 21 Wiring 4 4 3 Dry Contact Connection RPI M6A M8A M10A provide 1 set of Dry Contact function When inverter is on grid these two pins will be short circuited Woe ma f Dry Contact 5 Faul is dg al a RPI M6A M8A M10A Figure 4 9 Dry contact port 22 Turn on off PV inverter 5 Turn on off PV inverter WARNING BURN HAZARD The enclosure temperature may exceed 70 C while inverter is operation A dangerous burn hazard is present in this situation 5 1 First startup Turn AC power switch ON in AC distribution box AC power can be fed into inverter LCD display will be lighting up and then asking users to select Language and Country as shown in Figure 5 2 After these two items set correctly LCD display will enter home page Figure 5 3 Make sure status showing no errors or faults on home page Users can turn the DC switch ON When enough power is generated from the PV array the device will initially self test which may take about 2 mi
16. e between Plus to Ground or Minus to Ground Either side of boost driver or boost choke malfunction Detection circuit malfunction Power line is disconnected inside the inverter Current feedback circuit is defective 1 RCMU is disconnected Detection circuit malfunction 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 Voc of PV array is over 1000Vdc Surge occurs during operation Detection circuit malfunction 38 Action Check the insulation of Solar inputs Check the capacitance lt gt GND amp lt gt GND must lt 2 5uF Install a external transformer if necessary Check boost driver amp boost choke Check the detection circuit inside the inverter 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 Replace the defective relay s Check the driver circuit inside the inverter Replace the defe
17. eactive Power 5 3 7 FRT 9 3 8 24 amp Meter Energy Lag Event Log Inverter Information General Settings Install Settings Figure 5 4 Menu page Turn on off PV inverter 5 3 1 Power Meter This page displays voltage current and power from both AC and DC side AC L1 L2 L3 V 230 230 230 111 5 11 5 11 5 P 2645 2645 2645 tlo AC Power 7935 W Frequency 50 00 Hz E Today 24 kWh tlo DC DC1 DC2 V 544 472 8 0 8 3 P 4350 3915 Figure 5 5 Power meter page 9 3 2 Energy Log Press ENT to view the historical data on the power generated Energy Log Life Energy 29200 kWh Runtime 7302 Hrs CO2 Saved 94312 kg Figure 5 6 Energy log flow chart 25 A NELTA Turn on off PV inverter 5 3 3 Event Log This page displays all error or fault events and it can show 30 records at a time The latest event will be showed on the top 1 20 02 2013 15 30 AC Freq High 2 19 02 2013 09 30 AC Volt Low id g 29 20 02 2013 15 30 AC Freq High 30 19 02 2013 09 30 AC Volt Low ELEN E ap OPL Se Ae L EL E N P EE EE E OBE E hes one O I A Figure 5 7 Event log flow chart 5 3 4 Inverter Information This page has the following information serial number firmware version inverter ID country insulation setting If user wants to change inverter ID please refer to 5 3 6 Install Settings S N RN11179CBO DSP 1 80 Red 1 65 Comm
18. ectrical safety IEC 62109 1 2 MISCELLANEOUS Immunity Mounting bracket Enclosure Aluminum with powder coating Table 9 1 Specifications for RPI M6A M8A M10A A NELTA 43 A NELTA Smarter Greener Together
19. ed solar inverter which does not support off grid functionality The operation of solar inverter is shown as figure 1 1 Inverters convert the DC input power supplied from the PV Array into 3 phase AC output power to Grid PV Array Install if Solar Inverter Electrical Grid necessary i AC Distribution box Surge arrestor AC breaker Figure 1 1 Solar system operation illustration 1 3 Additional Information For more detailed or other related product information please visit http www deltaww com 05 A NELTA Product Overview 2 Product Overview 2 1 Checking Unit and Accessories Unpredictable damages may occur during shipment Check if all the accessories are in the package the standard accessories are list as Table 2 1 f r fa r JR fn ja fr r Figure 2 1 Packing listUnit Object Qty Description 1 PV Inverter 1 RPI M6A RPI M8A RPI M10A solar inverter 2 lssrivlsnus 4 The Instruction to provide the information of safety Installation specification etc 3 AC Plug 1 Connector for AC connection 4 Mounting Bracket 1 To mount solar inverters on the wall Table 2 1 Packing list Remark If there is any visible damage to the inverter accesories or any damage to the packaging please contact your inverter supplier 06 Product Overview 2 2 Product Label Users can identify the model number and the specifications by the information on the product label The locat
20. er terminal Actual utility frequency is over the OFR setting 2 Incorrect country setting 2 Check country setting Detection circuit malfunction 3 Check the detection circuit inside the inverter Actual utility frequency is 1 Check the utility frequency on the under the UFR setting inverter terminal AC Freq LW Incorrect country or Grid 2 Check country amp Grid setting setting 3 Check the detection circuit inside the Detection circuit malfunction inverter Grid Non linear load in Grid and Grid connection of inverter need to be far Quality near to inverter away from non linear load if necessary 1 Wrong connection in AC Check the AC connection must pu plug accords to manual Connect ee fee ee Fail Detection circuit malfunction 2 Check the detection circuit inside the inverter AC breaker is OFF Switch on AC breaker No Grid Disconnect in AC plug Check the connection in AC plug and make sure it connects to inverter Actual utility voltage is Check the utility voltage connection to under the UVR setting the inverter terminal ne Veh Incorrect country or Grid Check country amp Grid setting Low j setting Check the connection in AC plug Wrong connections in AC Check the detection circuit inside the plug inverter Detection circuit malfunction Actual utility voltage is over Check the utility voltage on the the OVR setting inverter terminal Utility voltage is over the Check the utili
21. 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 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 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 Check the input voltage must gt 150Vdc Check the auxiliary circuitry inside the inverter Check the detection circuit inside the inverter FAULT Message Possible cause 1 Insufficient input power 2 Auxiliary power circuitry HW DSP malfunction ADC2 3 Detection circuit malfunction Insufficient input power Auxiliary power circuitry HW DSP malfunction ADC3 Detection circuit malfunction 1 Insufficient input power Auxiliary power circuitry HW Red malfunction ADC1 Detection circuit malfunction Insufficient input power Auxiliary power circuitry HW Red malfunction ADC2 Detection circuit malfunction 1 The calibration is incorrect HW Current feedback circuit is Efficiency defective 1 Red CPU is idling HW
22. ion for the label please sees Figure 2 2 RPI M6A M8A M10A Figure 2 2 Product label 2 3 Exterior Objects The Inverter s exterior objects are shown in Figure 2 3 The detailed input output interfaces illustration is shown in Figure 2 4 RPI M6A M8A M10A AC DC Switch lt gt LCD LED Display sand Buttons on DC Connectors Communication Connection 1 AC Connectors t Label Communication Connections 2 Grounding Hole Figure 2 3 Inverter s exterior objects 07 Product Overview ISCORN ACIDE am MN i AC DC Switch INT DOQ d C DC1 L RPI M6A M8A AC Connector Groundin 400Vac 3Ph Mark Communication 1 Communication 2 RS 485 2 EPO 1 Ethernet optional Dry Contact 1 Wi Fi optional Digital Input 6 RPI M10A Figure 2 4 Input output panels 08 r Installation 3 Installation CAUTION The unit should not be installed in a direct sunlight WARNING e Do not install the unit near or on flammable surfaces e Please mount the unit tightly on a solid smooth surface 3 1 Unpack the Inverter Figure 3 1 Unpacking the inverter A NELTA 09 Installation 3 2 Mounting position This unit is designed to be wall mounted Please ensure the installation is perpendicular to the floor and the AC plug at the bottom Do not install the device on a slanting wall Fix the supplied wall mount plate securely
23. move 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 Now you may unload the inverter 40 Technical Data 9 Technical Data RPI M6A RPI M8A RPI M10A GENERAL Enclosure Powder coated aluminum Operating temperature 25 60 C full power up to 40 C Operating Altitude 2000m Relative humidity 0 100 non condensing Environmental category Outdoor wet locations Protection degree IP65 Electronics Pollution degree I Overvoltage category AC output Ill DC Input Il Maximum backfeed current to the array 0 Galvanic isolation NO Safety class Class metal enclosure with protective earth Dimensions W H D 510 x 445 x 117mm Connectors Weather resistant connectors DC INPUT Solar side Maximum input power 6 6kW 8 8kW 11kW Recommended PV power range 9 5kW 12 5kW Nominal voltage 600Vdc Operating voltage 200Vdc 1000Vdc Startup voltage gt 250 Vdc Start up power 40W Parallel inputs 1 MPP tracker MPP tracker Separate inputs 2 MPP trackers Absolute maximum voltage 1000Vdc MPPT range at Nominal Power Balanced inputs 50 50 315 800Vdc 415 800Vdc 415 800Vdc Unbalanced inputs 60 40 os 4 415 800Vde Number of inputs 2 pairs MC4 3 pairs MC4 Rated current 10A 2 10A 2 15A 10A Maximum short circuit current per MPPT Isc 13A 13A 13A
24. mp Italy P Others p Pm Gradient Gradient eeeeee ep eeeeeaqereee eeeeee pe fstart f recovery f protection f recovery f start f protection Figure 5 14 Power vs Frequency parameters 5 3 7 3 P V When grid voltage rises up to a lock in voltage V lock in and inverter s present output power is greater than lock in power P lock in inverter will reduce the output power and keep it at a certain value P lock out until grid voltage drop back to lock out voltage V lock out and passing a certen time T revcovery Power Limit Ex gt Mode OFF Power vs Frequency PF lock in 20 gt P V P lock out 5 EN V lock in 253 0V gt V lock out 248 4V E T recovery 300s Figure 5 15 P V page A NELTA 29 Turn on off PV inverter 5 3 7 4 Constant cosphi Inverter can feed in a fixed reactive power to grid Users can set the power factor cosphi in Constant cosphi page gt Constant cosphi Ev gt Mode OFF Cosphi P cosphi Ind 1 00 Constant Q q aw Figure 5 16 Constant cosphi page 5 3 7 5 Cosphi P Cosphi P is a function that inverter will feed in reactive power when its output active power reach the setting values For country Italy MV and Italy LV users can set lock in voltage and lock out voltage to assign the operation interval When grid voltage reach the lock in voltage V lock in inverter will enable cosphi
25. nction Actual Solar2 voltage is Check the Solar2 voltage connection under the limit to the inverter terminal Solar Some devices were Check all switching devices in boost2 Low damaged inside the inverter 3 Check the detection circuit inside the if the actual Solar2 voltage inverter is close to 0 Detection circuit malfunction Table 7 2 Warning Message A NELTA 35 Message HW DC Injection Temperature High HW NTC1 Fail Temperature LOw HW NTC2 Fail HW NTC3 Fail HW NTC4 Fail HW DSP ADC1 Error message and Trouble Shooting FAULT Possible cause Utility waveform is abnormal Detection circuit malfunction The ambient is over 60 C The installation is abnormal Detection circuit malfunction Ambient temperature gt 90 C or lt 30 C Detection circuit malfunction 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 1 Insufficient input power Auxiliary power circuitry malfunction Detection circuit malfunction 36 Action Check the utility waveform Grid connection of inverter need to be far away from non linear load if necessary Check the detection circuit
26. nutes After it is done inverter will start to feed in power to grid A DELTA L Alarm Grid ESC v ENT RPI Commercial ESC Exit Manu ENT Enter Manu or Confirm Down Move Down UP Move UP Figure 5 1 panel indicator Standby or Countdown FLASH OFF Power 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 Table 5 1 LED indicator A NELTA 23 Turn on off PV inverter First Startup Select Language D English Deutsch hv Francais E Select Country Ev Are you sure to Australia set country Austria XXX Belgium E Yes gt No Figure 5 2 Country and language settings for first startup 5 2 Home Page When inverter is operating normally the LCD will display homepage as shown in Figure 5 3 user can get the information of output power inverter status E today date and time Inverter Status gt Status Output Power Power Today Energy eE Today 21 Jun 2013 13 50 e Day Time On Grid 7935 W 192 kWh Figure 5 3 Home page for M6A M8A and M10A 5 3 LCD Flow Chart Press EXIT to enter menu page shown as Figure 5 4 The option E today is homepage Meter Energy Log Event Log Inverter Information General Setting Install Setting 5 3 1 5 3 2 9 3 3 5 3 4 9 3 9 9 3 6 Active R
27. o Factory Figure 5 10 Install Settings page A NELTA 21 Turn on off PV inverter 5 3 7 Active Reactive power A password is required to enter Active Reactive Power page This page includes two kinds of function active power control and reactive power control In active power control function there are 3 control modes Power Limit Power vs Frequency and P V In reactive power control function there are 4 control modes Constant cosphi cosphi P Constant Q and q V These modes will be introduced in next section gt Active Power Ctrl Reactive Power Ctrl Figure 5 11 Active Reactive power page 5 3 7 1 Power Limit This control mode can reduce the output power to a percentage of inverter s rated power Users can limit the output power by set the Set Point in Power Limit page gt Power Limit Ev gt Mode ON Power vs Frequency gt Set Point 100 D Figure 5 12 Power Limit page 28 Turn on off PV inverter 5 3 7 2 Power vs Frequency Inverter will reduce output power when grid frequency rises up if this mode enabled Users can tune the parameters in Power vs Frequency page to change the inverter s behavior Power Limit Ev gt Mode ON gt Power vs Frequency F start 50 20 Hz P V F recovery 50 20 Hz EN Gradient 40 Otto S gt T recovery 300s Figure 5 13 Power vs Frequency page Germany MV a
28. or message and Trouble Shooting 34 8 De Commissioning 2 5 02 2 40 9 Technical Data 41 A NELTA Safety Instructions This manual uses the following instructions for conveying important safety related information CAUTION Machine and equipment damage may occur if this hazardous situation is not avoided WARNING Death and serious injury may occur if this hazardous situation is not avoided Repair work on the device should ONLY be carried out by the manufacturer No user serviceable parts inside In Australia installation and maintenance work shall be conducted by qualified electrician and shall comply with Australian Regulations DANGER To avoid risk of electrical shock do not open the solar inverter Death and serious injury will occur if this hazardous situation is not avoided 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 04 General Information 1 General Information 1 1 About this Manual 1 2 This manual is to provide the explanation and procedures for installing operating maintaining and troubleshooting the below solar inverters RPI M6A RPI M8A RPI M10A Product Description This device is a 3 phase grid ti
29. ty voltage on the AC Volt Slow OVR setting during inverter terminal High operation Check country amp Grid setting Incorrect country or Grid Check the detection circuit inside the setting inverter Detection circuit malfunction 34 Error message and Trouble Shooting ERROR Message Possible cause Action Actual Solar1 voltage is Modify the solar array setting and Solar over 1000Vdc make the Voc less than 1000Vdc High Detection circuit malfunction 2 Check the detection circuit inside the inverter Actual Solar2 voltage is Modify the solar array setting and Solar2 over 1000Vdc make the Voc less than 1000Vdc High Detection circuit malfunction 2 Check the detection circuit inside the inverter PV array insulation fault Check the insulation of Solar inputs Large PV array capacitance Check the capacitance dry PV panel Insulation between Plus to Ground or if necessary Minus to Ground or both Check the detection circuit inside the Detection circuit malfunction inverter Table 7 1 Error Message Warning Message Possible cause Action Actual Solar1 voltage is under the limit Check the Solar1 voltage connection to the inverter terminal Some devices were 2 Check all switching devices in boost1 Solar SR LOW damaged inside the inverter 3 Check the detection circuit inside the if the actual Solar1 voltage inverter is close to 0 Detection circuit malfu
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