Contents Section Description Page General Information ................6 1.1 About this Manual ................6 1.2 General Warnings / Notes on Safety..........6 1.3 Validity .................... 7 1.4 Product Description ............... 7 1.5 How it Works .................. 8 1.6 Additional Information ..............8 Installation and Wiring ................
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6.2.2 Active Factor cosφ(P) ............31 6.2.3 Fixed Reactive Power ............32 6.2.4 Reactive Power / Voltage Characteristic Q(U) ....32 6.3 Fault Ride Through (FRT) ............33 Turn on/off PV inverter ................ 35 7.1 Home Page ................... 37 7.2 LCD Flow Chart ................37 7.2.1 Power Meter .................
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Figure 2-2 Wooden case unpacking process ..........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 ............... 12 Figure 3-4 LCD display and control panel .............
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Figure 7-6 Power meter page ............... 37 Figure 7-7 Energy log flow chart ..............38 Figure 7-8 Event log flow chart ..............38 Figure 7-9 Operation data flow chart ............. 39 Figure 7-10 Inverter information page ............39 Figure 7-11 Setting page ................40 Figure 7-12 Personal setting page ..............
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.
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 ...
On Grid, Derating, cosφ – Ind 0.9 Fuse AC breaker DC switch Figure 1-1 Solar system operation illustration 1.6 Additional 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.
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.
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 Description RPI-M8/ M10/ M12/ M15/ M15A/ M20/...
612 [24.1] 278 [10.9] Front view Side view Back view RPI-M8/ M10/ M12 RPI-M15A/ M20A Bottom view Figure 3-1 Dimension of RPI-M8/ M10/ M12/ M15A/ M20A Top view 278 [10.9] 612 [24.1] Front view Side view Back view 260 [10.2]...
Connetions Air outlets Connetions Fan*1 or 2 Label Label AC Connectors AC Connectors RPI-M15/ M20/ M30 RPI-M8/ M10/ M12/ DC Switch M15A/ M20A DC Switch Fan*4 DC Connectors DC Connectors Figure 3-3 Inverter exterior objects 3.2.1 LCD Display and Buttons...
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.
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. ◆ 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.
5. Wiring 5.1 Preparation before Wiring Ensure voltage values and polarities 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.
PV Array DC Distribution box (Plus-GND or Minus-GND) Must be Parallel Connection Must install a transformer Isolated transformer Utility Inverter 3Ph, 3Ph, 400Vac 400Vac Some models can support 3P3W system, please refer to table 5-3. Figure 5-2 Connection of system with positive/negative ground WARNING!...
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 RPI-M10 RPI-M12 RPI-M15 RPI-M15A RPI-M20...
AC’s wiring can be separated into 3-phase and PE (3P3W) or 3-phase, N, and PE (3P4W). Only some models can support 3P3W system. Please refer to table 5-3. The following instruction is based on 3P4W. If the grid system is 3P3W, please ignore the description of N.
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. 1 : L1 2 : L2 3 : L3...
Rotate to tighten the plug Rotate gland to fix cable AC plug Figure 5-5 AC plug illustration for M30 Table 5-3 The wiring system of the inverter. Model RPI-M15/ M20 RPI-M8/ M10/ M12 Wiring P/N: RPIXX3N5430098 or 09 3P3W+PE ╳ ╳ ...
Rated current > 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...
DC wiring polarity is divided into positive and negative, which is shown as in Figure 5-6. The connection shall be coherent with the indication marked on inverter. PV-KBT4/6 Ⅱ PV-KST4/6 Ⅱ Figure 5-6 DC Wiring illustration...
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 RS-485 RS-485 + - + Dry contact (3A / 28V) (Emergency Power off)
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 Enable EPOs Short EPO1...
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.
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: is the power generated at the time of exceeding f start is the feeding power is the mains frequency...
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 φ...
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”...
6.3 Fault Ride Through (FRT) According to BDEW: 2.5.1.2 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.
10% of the nominal capacity per second (TC2007; 3.3.13.5, section 14). Figure 6-4 Borderlines of the voltage profile of a type-2 generating plant at the network connection point RPI-M8/ M10/ M12/ M15/ M15A/ M20/ M20A/ M30 implements the FRT behavior as the figure below, in area Keep normally operate Feed-in reactive current according to ΔU/Un and K factor...
7. 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.
Table 7-1 LED indicator Condition Green LED Red LED Standby or Countdown FLASH Power ON Error or Fault Night time (No DC) 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.
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 Day - Time 21.
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 - Year Energy Log - Month Energy Log - Day Energy Log - Total 21.
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 Operation Data – 2/4 21. Jun 2010 13:50 21. Jun 2010 13:50 Maximum Input1 Maximum...
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 Figure 7-11 Setting page 7.2.6.1 Personal Setting The language, date, time, screensaver, LCD brightness and contrast can be set in the Personal Settings.
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 1.86 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.
AC connection: Depending on the site conditions, the two systems available are 3P3W and 3P4W. Install Settings Install Settings Password 21. Jun 2010 13:50 21. Jun 2010 13:50 21. Jun 2010 13:50 Inverter ID 3P4W AC Connection Insulation RCMU Country ItalyMV EXIT...
Grid Settings – 1/4 Grid Settings – 2/4 21. Jun 2010 13:50 21. Jun 2010 13:50 Vac High Off 276.0 V Vac High Off Slow 276.0 V 253.0 V Vac High On 253.0 V Vac High On Slow Vac High Off T 0.5 s 0.5 s Vac High Off Slow T...
Same functionality as the Vac High Off T, but the time must be Vac High Off Slow T set longer. Same functionality as the Vac Low Off, but the value must be Vac Low Off Slow set higher. Same functionality as the Vac Low On, but the value must be Vac Low On Slow higher.
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 Point Rated Actual/Rated Power Mode Figure 7-19 Power limit setting page 7.2.6.4.2 Power vs.
Constant cosφ 7.2.6.4.3 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. Reactive Power Control 21. Jun 2010 13:50 cosφ Ind 0.90 Mode Figure 7-21 Constant cosφ setting page cosφ(P) 7.2.6.4.4 The output power factor would be affected by feeding power.
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 Reactive Power (Q/Sn) Cap 30 Mode Figure 7-23 Constant Reactive Power setting page 7.2.6.4.6 Q(U) RPI-series support two kind of Q(U) curves.
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. FRT – 1/2 21. Jun 2010 13:50 Dead band - Vh Dead band - Vl K factor K factor...
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. RPI-M8/ M10/ M12 RPI-M15A/ M20A RPI-M15/ M20/ M30...
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...
9. Measurement, Error message and Trouble Shooting 9.1 Measurement Table 9-1 Measurement and message E-Today: 47kWh Power Meter 21. Jun 2010 13:50 21. Jun 2010 13:50 Input1 Input2 Output Runtime: 8.2Hrs Power: 12103W 1420 1455 1480 On Grid Today Energy: Today Runtime: Hours Today Earning:...
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Operation Data – 3/4 Operation Data – 4/4 21. Jun 2010 13:50 21. Jun 2010 13:50 Temperature Max. Min. Output Maximum Voltage (Vdc) Inside 59.3 15.7 (℃) Current 30.5 Heatsink - 1 75.5 15.3 (℃) Power 20311 Heatsink - 2 (℃) 74.2 15.2...
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E-Month Total energy generated in that month Month CO2 saved Accumulated CO2 emission retrenched in that month Peak Hour The maximum energy generated of one hour in that day E-Day Total energy generated in that day Day CO2 saved Accumulated CO2 emission retrenched in that day Input1 Voltage Maximum The maximum DC Input1 voltage from history Input1 Current Maximum...
9.2 Error Message & Trouble Shooting Table 9-2 Error Message ERROR Message Possible cause Action 1. Actual utility frequency is over 1. Check the utility frequency on the inverter the OFR setting terminal AC Freq 2. Incorrect country setting 2. Check country setting High 3.
1. Actual Solar1 voltage is over 1. Modify the solar array setting, and make the 1000Vdc Voc less than 1000Vdc Solar1 High 2. Detection circuit malfunction 2. Check the detection circuit inside the inverter 1. Actual Solar2 voltage is over 1.
Table 9-4 Fault Message FAULT Message Possible cause Action 1. Check the utility waveform. Grid connection of 1. Utility waveform is abnormal inverter need to be far away from non-linear HW DC 2. Detection circuit malfunction load if necessary Injection 2.
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1. Insufficient input power 1. Check the input voltage, must > 150Vdc 2. Auxiliary power circuitry HW DSP 2. Check the auxiliary circuitry inside the inverter malfunction ADC3 3. Check the detection circuit inside the inverter 3. Detection circuit malfunction 1.
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1. One or more relays are sticking 1. Replace the defective relay(s) Relay Test 2. The driver circuit for the relay 2. Check the driver circuit inside the inverter Short malfunction 1. One or more relays are abnormal 1. Replace the defective relay(s) 2.
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1. Check the utility waveform. Grid connection of 1. Large Grid harmonics inverter need to be far away from non-linear 2. Switching device is defective load if necessary HW AC OCR 3. Detection circuit malfunction 2. Check all switching devices in inverter stage 3.
10. De-Commissioning 10.1 De-Commissioning 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: ◆ Switch off AC circuit breaker to disconnect with electricity grid. ◆...
11. Technical Data 11.1 Specification Table 11-1 Specification for RPI-M8/ M10/ M12 RPI-M8 RPI-M10 RPI-M12 GENERAL Enclosure Powder coated aluminum -20~60℃, full power up to 40℃ Operating temperature Operating Altitude 2000 m Relative humidity 0 – 100% non-condensing. Environmental category...
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Maximum short circuit 24 A 24 A 24 A current per MPPT (Isc) AC OUTPUT (GRID SIDE) Nominal power 8kVA 10kVA 12kVA Maximum power 8.4kVA 10.5kVA 12.6kVA Voltage 3Ph, 230/400Vac (3phase / N / PE) Nominal current 11.6 A 14.5 A 17.4A Maximum current 12.8 A...
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REGULATIONS & DIRECTIVES CE conformity 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 IEC 61000-4-2 IEC 61000-4-3 IEC 61000-4-4 Immunity Surge IEC 61000-4-5 IEC 61000-4-6 PFMF IEC 61000-4-8...
Table 11-2 Specification for RPI-M15/ M20/ M30 RPI-M15 RPI-M20 RPI-M30 GENERAL Enclosure Powder coated aluminum -20~60℃, full power up to 40℃ Operating temperature Operating Altitude 2000 m Relative humidity 0 – 100% non condensing. Environmental category Outdoor, wet locations Protection degree IP65 (Electronics) Pollution degree Overvoltage category...
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AC OUTPUT (GRID SIDE) Nominal power 15kVA 20kVA 30kVA Maximum power 16kVA 21kVA 30kVA Voltage 3Ph, 230/400Vac Nominal current 22 A 43 A Maximum current 25 A 32 A 46 A Inrush current 150A/100μs 150A/100μs 150A/100μs Maximum output fault 21.8 A 21.8 A 21.8 A current (rms)
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REGULATIONS & DIRECTIVES CE conformity Grid interface VDE0126-1-1, VDE-AR-N 4105, RD1699, CEI 0-21 Emission EN 61000-6-3 Harmonics EN 61000-3-12 Variations and flicker EN 61000-3-11 Immunity EN 61000-6-2 IEC 61000-4-2 IEC 61000-4-3 IEC 61000-4-4 Immunity Surge IEC 61000-4-5 IEC 61000-4-6 PFMF IEC 61000-4-8 Electrical safety IEC 62109-1/ -2...
Table 11-3 Specification for RPI-M15A/ M20A RPI-M15A RPI-M20A GENERAL Enclosure Powder coated aluminum -25~60℃, full power up to 40℃ Operating temperature Operating Altitude 2000 m Relative humidity 0 – 100% non condensing. Environmental category Outdoor, wet locations Protection degree IP65 (Electronics) Pollution degree Overvoltage category AC output :III, DC Input :II...
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AC OUTPUT (GRID SIDE) Nominal power 15kVA 20kVA Maximum power 15.75kVA 21kVA Voltage 3Ph, 230/400Vac Nominal current 22 A 29 A Maximum current 24 A 32 A Inrush current 150A/100μs 150A/100μs Maximum output fault 22 A 22 A current (rms) Maximum output over current 30 A 40 A...
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REGULATIONS & DIRECTIVES CE conformity Grid interface VDE0126-1-1, VDE-AR-N 4105, RD1699, CEI 0-21 Emission EN 61000-6-3 Harmonics EN 61000-3-12 Variations and flicker EN 61000-3-11 Immunity EN 61000-6-2 IEC 61000-4-2 IEC 61000-4-3 IEC 61000-4-4 Immunity Surge IEC 61000-4-5 IEC 61000-4-6 PFMF IEC 61000-4-8 Electrical safety IEC 62109-1/ -2...