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Contents 1. General Information ................................................................ 1 1.1 About this Manual ...............................................................................1 1.2 Safety Symbol & Instruction................................................................1 1.3 Validity ................................................................................................1 1.4 Product Description ............................................................................
6.1.1 Power Limit ....................................................................................20 6.1.2 Power vs. Frequency .....................................................................20 6.2 Reactive Power Control ....................................................................21 6.2.1 Fixed power Factor cosφ(VDE-AR-N 4105,CEI 0-21)....................22 6.2.2 cosφ(P) (VDE-AR-N 4105,CEI 0-21) .............................................22 6.2.3 Fixed Reactive Power In Var(CEI 0-21) ....
Appendix A : Multi-function Relay ........................................... 47 A.1 Multi-function relay output connection ..............................................47 Appendix B : Digital Input.........................................................
Figure Index Figure 1-1 Solar inverter system operation illustration .....................................2 Figure 2-1 Unpacking process .........................................................................4 Figure 2-2 The identification label ....................................................................6 Figure 3-1 Dimension of RPI-H3 ......................................................................7 Figure 3-2 Dimension of RPI-H5CCCCCCCCCCCCCCCCCCC...
Table Index Table 2-1 Packing list .......................................................................................5 Table 5-1 AC wire requirement.......................................................................16 Table 5-2 Definition of RS-485 .......................................................................19 Table 5-3 RS-485 data format ........................................................................19 Table 7-1 Country list .....................................................
1. General Information 1.1 About this Manual This manual provides the detailed information of specification, installation procedures and all related function settings about the solar inverter modelRPI-H3/RPI-H5. Installation technicians must be well-trained and qualified for installing solar system and must follow all the safety instructions and installation procedures. 1.
1.4 Product Description This device is a single phase grid-tie solar inverter. It converts direct current (DC) electricity from photovoltaic power collected from PV Array into single phase alternating current (AC) to feed the excess capacity back to the local main electrical grid. This inverter allows wide voltage input range (125~550VDC for RPI-H3 and 200~1000VDC for RPI-H5) and high performance efficiency based on user’s friendly operation design.
1.6 Additional Information For more detailed information for RPI-H3/RPI-H5 or other related product information, please visit http://www.deltaww.com .
2. Installation and Wiring 2.1 Instruction before Installation Due to variety of users’ installation environment, reading this manual thoroughly before installation is strongly recommended. All the installation and start-up procedures must be undertaken by professional and well-trained technician. 2.2 Unpacking Unpacking process is shown as Figure 2-1. a. b. c. Figure 2-1 Unpacking process 4 d.
2.3 Package Inspection Unknown situations may occur during shipments. Please check if there is any damage on the wooden carton. After opening the package, please check both outer case and inner part of this inverter as below. Check the right side of the case to ensure the model number and the specification is the same as the model you purchased previously. 1. Check the inverter model number and the specifications are the same as the model you purchased previously. 2. Check if the is any loose component. 3.
2.4 Identification Label Users can identify the model number by the information on the product label. The model number, specifications as well as the series No. is specified on the product label. Regard to the label location, please refer to Figure 2-2.
3. Product Overview 3.
3.2 Function Introduction Inverter’s exterior objects are shown on the Figure 3-3, and the detailed description is in sections 3.2.1 and 3.2.2. Figure 3-3 Inverter exterior objects 3.2.
3.2.
4. Installation 4.1 Installation Location WARNING！ ！ Death and serious injuries may occur. ! ● Do not install the unit near/on the flammable objects. ● Please mount the unit tightly on the solid/smooth wall. ● In order to ensure the safety of installers, installer shall be at least two people to process the installation. ● When moving the Inverter, installer shall not stand under machines.
Figure 4-1 Screw the mounting bracket for RPI-H3 11
Figure 4-2 Screw the mounting bracket for RPI-H5 12
Figure 4-3 Correct and incorrect installation illustration ! CAUTION The location and hardware should be a solid surface or a firm holder that suitable for the weight of inverter. Suggested to install the inverter to the location which offers free and safe access. It would streamline the service and maintenance Please leave an appropriate gap in between when installing singe/ several solar inverter systems.
Ambient temperature -20℃~60℃.(power derating above 40℃) There shall be sufficient space for product operation as shown as the Figure 4-4. If necessary, installer can increase the gap space for sufficient operation space.
5. Wiring 5.1 Preparation before Wiring 1. Make sure whether the voltage values, polarities are correct. 2. When grounding of the solar array is necessary, an isolation transformer is required due to the RPI-H3/RPI-H5 not having a galvanic isolation between the DC-input and AC-output. 3. The ground fault detection is a fixed internal setting. It always works and can not be modified. 4. The whole system wiring is shown as in Figure 5-1. Please refer to Figure 5-1 for the connection.
5.2 AC Grid Connection: ! L + N + PE WARNING! Death and serious injuries may occur. Before AC wiring, please ensure AC breaker is switched off. For RPI-H5, users must aware that AC configuration Setting must be set correctly otherwise this device can not work. There are two types of AC configurations (shown in figure 5-2) that are used in electricity systems. For “AC Configurat.” setting please see chapter 7.2.
Figure 5-3 AC plug illustration The AC voltage should be as following. L-N: 230 Vac± 10 5.3 DC Connection (from PV Array) ! WARNING ! When doing DC wiring, please choose the proper wiring by connect to the correct polarity. When doing DC wiring, please confirm that PV Array’s power switch is off. ! CAUTION ! ◆ The maximum open circuit voltage of PV Array must not exceed 550V (RPI-H3) / 1000V (RPI-H5).
(RPI-H3) / 5950W (RPI-H5). ◆ The device installed between PV Array and inverter must meet the rating of voltage higher than this device’s maximum input voltage. Cable size: Current Rating DC 15 A (RPI-H3) Wire size DC 17.5 A (RPI-H5) 2-3mm2 / 14 AWG DC wiring polarities are divided into positive and negative, which is as shown in Figure 5-4. The connection shall be coherent with the indication marked on inverter. Figure 5-4 DC Wiring illustration 5.
5.4.1 RS-485 Connection The pin definition of RS-485 is shown as in Table 5-2 and protocol settings are listed in Table 5-3. The wiring of multi-inverter connection is shown as figure 5-6. .
6. Active/Reactive Power Control and Low Voltage Ride Through (Optional) There are 2 settings for active power and 4 settings for reactive power control based on the requirement from network operator. 6.1 Active Power Control 6.1.1 Power Limit Users can reduce inverter output power by set percentage of actual or rated power. 6.1.2 Power vs. Frequency According to VDE-AR-N 4105 (5.7.3.3)： At frequencies between 50.2Hz and 51.
Power vs. frequency curve for VDE-AR-N 4105 Power vs. frequency curve for CEI-021 Figure 6-1 Power vs. frequency characteristic 6.2 Reactive Power Control 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 = 0.8 underexcited to 0.8 overexcited (VDE-AR-N 4105,CEI 0-21 cos ϕ = 0.9 underexcited to 0.
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 1. fixed power factor cosφ (VDE-AR-N 4105 ,CEI 0-21) 2. displacement factor/active power characteristic curve cosφ(p) (VDE-AR-N 4105 ,CEI 0-21) 3. fixed reactive power in Var.(CEI 0-21) 4. reactive power/voltage characteristic Q(U). (CEI 0-21) 6.2.
6.2.4 Reactive Power / Voltage Characteristic Q(U)(CEI 0-21) Once user enables this method, user can set Q vs. Grid voltage operation curve as below.
6.3 Low Voltage Ride Through (LVRT) According to CEI 0-21, 8.5.1 To avoid undue separation from the network if voltage dips occur, a generation system with over 6 kW total power must be able to comply with certain functional requirements, which are known as LVRT(Low Voltage Ride Through) in international literature.
7. Turn on/off PV inverter WARNING： ：BURN HAZARD The enclosure temperature may exceed over 70 ℃ while operating. Danger may occur owing to hot surface. Please do not touch! After installation, please confirm the AC, DC, and Communication connection are correct. When solar irradiation is sufficient, the device will operate automatically after no mistakes on self-auto test (about 2 minutes at 1st startup of a day). The display includes 16×2 LCD display and LED indicator for inverter status.
7.2 Inverter Setting 7.2.1 Country Setting The first time you startup this device. Country Setting is required. 1. In the country setting page, press “SEL” button (NEXT) to select your located country, press “ENT” button to confirm this page. 2. Press “Enter” button to confirm your country setting. NOTE: Figure 7-1 Country Setting 7.2.2 AC Configuration Setting 1. Turn on DC power and wait for the LCD display is ready, then press “SEL” button until “Country XXX" is displayed. 2.
Figure 7-2 AC Configuration Setting-1 27
Install Settings Start Install Settings Inverter shut down Language xxxxxx ENT SEL Next xxxxxx / Enter ENT SEL Next SEL xxxxxx N / Y SEL ENT xxxxxx / Enter Exit ? N / Y ENT Country xxxxxx ENT SEL Next Yes Country is Empty (default)? xxxxxx / Enter ENT SEL Next No SEL xxxxxx N / Y SEL ENT xxxxxx / Enter Exit ? N / Y ENT AC Configurat.
7.2.3 Connecting the Communication Wiring Multiple inverters could be monitored via RS-485 connection (Figure 5-6), but each inverter’s ID must be set. NOTE: Make sure the inverter ID is different from each other in the same train. Single inverter could be monitored RS-485 connection. 7.2.4 Inverter ID Setting 1. Turn on DC power and wait for the LCD display to be ok, then press “Select” button until “Inverter ID: XX" is shown in the LCD. 2.
PAGE 1 Output Today PAGE 2 Utility 225V 60.00Hz PAGE 3 Output Current 16.0A DC : 5.9A PAGE 4 3600W 7200Wh 320V 1894W Today DC 3600Wh PAGE 5 AC PAGE 6 DC PAGE 7 Life Energy 1234KWh Life 617 Energy KWh PAGE 8 Inverter 5.0kW PAGE 9 Firmware rev.
Page6 Page7 Page8 Page9 Total output energy Total input energy Start page Firmware version Page10 Page11 Page12 Page13 Event list Inverter ID Country Language Page14 Grounded option Page15 Settings 7.3.1 Event List When entering this page, the display will show all the events (error or fault) and it can show 16 records at most with the latest one on the top.
(SEL and ENT are pressed simultaneously > 10 sec) when page is Country (Page 12) Inverter shut down Country XXX NETHERLANDS Next / Enter NETHERLANDS N / Y BELGIUM Next / Enter BELGIUM N / Y XXXXXX Next / Enter XXXXXX N / Y Country is Default Language XXX Figure 7-7 Country selection Table 7-1 Country list RPI-H3/RPI-H5 Germany Denmark Italy Israel Spain Bulgary Australia Czech Republic France Italy 6KVA(for RPI-H5 only) England Spain1699 Taiwan Portugal Greece China Belgium Austr
7.3.3 Language Selection When entering this page, user can set five different languages.
7.3.4 Insulation Mode Figure 7-9 Insulation mode 7.3.5 Settings Setting includes Personal Setting, Coefficients Setting, Install Setting and Italy Self-test. Italy Self-test Setting will only exist when Italy is selected in country setting.
7.3.6 Italy Self-test Italy Self-test includes Uac High(UH), Uac Low(UL), Fac High(FH) and Fac Low(FL). User can choose the selection of Uac High, Uac Low, Fac High, or Fac Low separately. The final testing result will be shown on the operating page and saved, user can review the results. If the Italy Self-test failed, this PV inverter would not operate anymore. Please contact with Delta or your supplier of this PV inverter.
8. Maintenance In order to ensure the normal operation of PV Inverter, please check up regularly at least once each year or each half year. Check all the terminals, screws, cables are connected well. If there are any impaired parts, please contact with the qualified technician to repair or replace to the new spare part. To ensure that no foreign body stocks at the heat outlet, please clean up once a half year by qualified technicians. WARNING！ ！ Death and serious injuries may occur.
9. Measurement、 、Error Message and Trouble Shooting 9.1 Measurement 1 2 Output Today 4 Output Current 16.0A 6 T o d ay D C 3 6 00W h 8 DC 3 Utility 225V 60.00Hz 3600W 7200Wh 5 7 DC : 5.9A A C L if e E n e r g y 1 2 3 4K W h Life Energy 617 KWh Table 9-1 Measurement and message No.
9.2 Error Message & Trouble Shooting Table 9-2 Error message ERROR Message Possible cause Action 1. Actual utility frequency is E01: Grid Freq over the OFR setting 3. Detection circuit malfunction Under Rating terminal 2. Check country setting Over Rating 2. Incorrect country setting E02: Grid Freq 1. Check the utility frequency on the inverter 3. Check the detection circuit inside the inverter 1. Actual utility frequency is 1.
setting 4. Check the detection circuit inside the 4. Detection circuit malfunction inverter 1. Actual utility voltage is over 1. Check the utility voltage on the inverter E13: Slow terminal the OVR setting Over Voltage 2. Incorrect country or Grid Range 3. Check the detection circuit inside the setting 3. Detection circuit malfunction 1. Actual utility frequency is E26:Slow Over over the OFR setting Frequency Range Under Frequency Range inverter 1.
A05: NTC Over Temp 1. The ambient temp. is over 60℃ 2. Detection circuit malfunction A06: Inside 1. Ambient temp. >100℃ or NTC Circuit <-24℃ Fail 2. Detection circuit malfunction 1. Boost heat sink temp. A09: Heat Sink NTC2 Fail A15:DSP ADC Vgrid/Iout Fail A16:DSP ADC Vin/Vbus Fail A17:DSP ADC Iin/Iboost Fail A18:RED. ADC Vgrid Fail A19:DSP ADC Iout_dc Fail environment 2. Check the detection circuit inside the inverter 1. Check the installation ambient and environment 2.
Inconsistent defective A22: Internal Comm Fault_R the inverter 1. Red. CPU is idling 1. Check reset and crystal in Red. CPU 2. The communication 2. Check the connection between Red. CPU connection is disconnected and DSP 1. DSP is idling A23: Internal Comm Fault_D 1. Check reset and crystal in DSP 2. The communication connection is disconnected 3. The communication circuit malfunction 1. PV array insulation fault 2. Check the connection between DSP and COMM 3. Check the communication circuit 1.
3. Driver for boost is defective the inverter or disconnected 4. Check the detection circuit inside the 4. Detection circuit malfunction inverter 1. Driver for boost is defective 2. Voc of PV array is over A31: Bus_P Over Volt Rating 550Vdc (RPI-H3) or 1000Vdc (RPI-H5) 1. Driver for boost is defective 2. Voc of PV array is over Rating 550Vdc (RPI-H3) or 1000Vdc (RPI-H5) 1. Driver for boost is defective 2. Voc of PV array is over 550Vdc (RPI-H3) or 1000Vdc (RPI-H5) 1. Surge occurs during 2.
Sensor Fail 3. Detection circuit malfunction 3. Check the detection circuit inside the inverter A45: HW OOCP A50:Zero Cross Circuit Fail A56:Hardware Incompatibility 1. WB1 WB2 misconnection. 2. Detection circuit malfunction Over Rating synchronal signal malfunction signal inside the inverter 1. HW power rating incorrect 1. Check comm. HW power rating info. defective 2. Driver for boost is defective 3. Input current detection circuit 1.
10. De-Commissioning De-Commissioning Procedure If it is necessary to put the device out of operation for RMA or maintenance, please follow the instructions below. ! WARNING！ ！Death and serious injuries may occur. To avoid injuries, please follow the procedures below, 1. Switch off AC circuit breaker to disconnect with electricity grid. 2. Switch off the PV Array switch to disconnect with PV Array. 3. Use proper voltage meter to confirm that the AC and DC power present totally absent. 4.
11. Technical Data 11.1 Specifications Table 11-1 Specifications RPI-H3 RPI-H5 GENERAL Enclosure Powder coated aluminum Operating temperature -20~60℃, full power up to 40℃ Relative humidity 0% – 95% non condensing.
Fuse Internal fuse, 20 A/250 V*1 Internal fuse, 20 A/250 V*2 MECHANISM Housing Aluminum Extrude Cooling Natural cooling IP rating IP65 External communication 2 RS-485 connection Weight Dimensions 15 kg 21.
Appendix A Multi-function Relay Inverter support one multi-function relay, the multi-function relay is available to external devices. The device includes: flashing lights, Buzzer Etc. the multi-function relay allow following configuration. • • • • Fault indicator or Grid status indicator Power production Control of external loads Fan control A.1 Multi-function relay output connection The Dry contact connection provides a remote indication of inverter status.
Figure A-2 Dry contact location ! Danger ！Hazard of Electric shock. Touching electronic components can damage components through electrostatic discharge.
Appendix B Digital Input To implementation of power management, the digital input interface receives the specifications of the network operator via a ripple control receiver. • Germany : the active power limitation in the stages 0%, 30%, 60% and 100% • Italy: Power output of Max 6KW for PV plant installation. a. Remote shutdown b. • Narrow Frequency limits between 49.5 Hz to 50.5Hz. Customer: User defined.
Pin Function 1 Digital input 1 2 Digital input 2 3 Digital input 3 4 Digital input 4 5 Output 1 6 Output 2 Country = Italy & Italy with SPI Function D1 D2 D3 D4 No function 0 0 0 0 Remote off 1 0 0 0 Narrow 0 1 0 0 frequency limit. Note: 1 = Relay is closed, 0 = Relay is open. Output 1 Output 2 1 1 1 1 1 1 Country = Germany Function D1 No function 0 Active power = 1 0% Active power = 0 D2 D3 D4 Output 1 Output 2 0 0 0 0 0 0 1 1 1 1 1 0 0 1 1 1 1 1 1 30%.
