Grid-tie transformerless solar inverter (68 pages)
Summary of Contents for Delta RPI M30A
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The power behind competitiveness Grid-tie Transfomerless Solar Inverter RPI M30A/M50A Operation and Installation Manual English 简体中文 繁體中文 www.deltaww.com...
Contents 1. General Information 1.1. About this Manual 1.2. Product Description 1.3. Additional Information 2. Product Overview 2.1. Unpack the Inverter 2.2. Checking Unit and Accessories 2.3. Product Label 2.4. Exterior Objects 3. Installation 4. Wiring 4.1 Preparation Before Wiring (Models with Fuses) 4.2.
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.
1.General Information 1.1. About this Manual This manual is to provide the explanation and procedures for installing, operating, maintaining, and troubleshooting of RPI M30A/ RPI M50A solar inverters. 1.2. Product Description This device is a 3-phase grid-tied solar inverter which does not support off- grid functionality.
Product Overview 2.Product Overview 2.1 Unpack the Inverter The unpacking procedure of RPI M30A/ M50A is shown as Figure 2-1. Figure 2-1 Unpack the inverter 2.2 Checking Unit and Accessories Unforeseeable events causing damage or movement may occur during shipment. Please check following items upon receiving your inverter.
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Product Overview Figure 2-2 Packing list of M30A RPI M30A Object Description PV Inverter 1 pcs RPI series solar inverter The Instruction to provide the information of safety, User Manual 1 pcs Installation, specification, etc. AC Plug 1 pcs Connector for AC connection...
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Product Overview Figure 2-3 Packing list of M50A RPI M50A Object Description PV Inverter 1 pcs RPI series solar inverter The Instruction to provide the information of safety, User Manual 1 pcs Installation, specification, etc. AC Plug 1 pcs Connector for AC connection DC Plug 10 sets Connector for DC connection...
Please refer to Figure 2-4 for the location of product label. You can identify the model number and the specifications by the information on the label. RPI M30A and M50A series have 3 models. The differences between them are having surge protection devices (SPD) and internal strings fuse or not.
Figure 2-6. Different models have different number of DC input strings. Air inlet Display Label Input / Output Interfaces RPI M30A Air inlet Display Label Input / Output Interfaces RPI M50A Figure 2-5 Inverter’s exterior objects...
Installation 3.Installation CAUTION ! The unit should not be installed in direct sunlight. WARNING ! • Do not install the unit near or on flammable surfaces. • Please mount the unit tightly on a solid/smooth surface. This unit is designed to be wall-mounted. Please ensure the installation is perpendicular to the floor and the AC plug at the bottom.
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Installation Figure 3-1 Mounting bracket dimension Recommended Keep >30 cm from floor and Recommended water if installed this way Figure 3-2 Recommended installation...
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Installation Wall M6 Screw *6 M6 Screw *6 Figure 3-3 Screw the mounting bracket Figure 3-4 Attach to the bracket and fasten with screws...
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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.
Wiring 4. Wiring 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.
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Wiring DC Wiring AC Wiring Must be Separate PV strings Communication Wiring RPI M30A * RPI M30A can support 3P3W system. AC Wiring DC Wiring Must be Separate PV strings Communication Wiring RPI M50A * RPI M50A can support 3P3W system.
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Wiring DC1+ DC2+ DC1- DC2- bus bar kit *2 RPI M50A Figure 4-2 Force M50A operate in parallel mode...
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Wiring AC Wiring DC Wiring Separated connection only Isolated transformer Utility Inverter 3Ph, 3Ph, 400Vac 400Vac Communication Wiring DC1+ DC2+ Grounding fuse DC1- DC2- bus bar kit Figure 4-3 Minus grounding of M50A with fuse...
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Wiring AC Wiring DC Wiring Separated connection only Isolated transformer Utility Inverter 3Ph, 3Ph, 400Vac 400Vac Communication Wiring DC1+ DC2+ Grounding fuse DC1- DC2- bus bar kit *2 Figure 4-4 Plus grounding of M50A with fuse...
• Different DC connection type needs different settings of insulation detection. About setting, please refer to 5.2.7 Install Settings. PV Array DC Distribution box DC Wiring Parallel or Separate AC Wiring Communication Wiring * RPI M30A can support 3P3W system. Figure 4-5 floating string of M30A_121...
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Wiring PV Array Do not enable the PID function and set the insulation with “Plus Grounded” or “Minus Grounded”. DC Distribution box (Plus-GND or Minus-GND) DC Wiring Must be Parallel Connection Must install a transformer Isolated transformer Utility Inverter 3Ph, 3Ph, 400Vac 400Vac...
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Wiring Note for Field Wiring Due to the limitation of physical wire also the DC connector used in the inverter, the absolute maximum current of each DC connector should be always observed as following table to keep fire risk away. Note that, the following value is provided to identified and checked the justification for field wiring instead of the DC current rating of inverter.
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Wiring M50A: -Also, you can’t use two or more branch to share the current from combiner box to each dc connector of inverter (Shown as Figure 4-8). Because the current might not be symmetric among the branch,the current of one branch might larger than the limitation still. Strictly forbiden Risk of fire on internal entrance cabling...
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Wiring M30A: The following diagram shown risky connection with M30A and PV combiner box. As Figure 4-10 shown , the left pair of dc connector will suffer DC input current more than the limitation 32A.Thus it is not suitable for use. >32A >32A Figure 4-10...
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Wiring M30A: As Figure 4-11 shown , the branch plug might suffer the DC current lager than its limitation. Thus it is not suitable for use. *Note >30A >30A Figure 4-11 *Note that the max current rating of MC4 brauch commercially available is 30A.
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Wiring To Use RPI M50A with 12 PV string • To apply branch connector on specific indicated DC input connectors. • To replace relative string fuse for the branch from 15A to 25A by opening the middle front cover. The Specific DC input connectors The inverter equips with 10 pair DC connector.
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Wiring For this application, the inverter provides specific 2 pairs of DC input connectors to connect with branch plugs. Both 2 pairs of DC input connectors indicated by symbols shown as following picture. Note that for Dc input connectors other than the specific two are forbidden with such application.
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Wiring The Relative String Fuse for the branch plug The inverter provide string fuse with rating 15A in default. When 2 PV string are connected via branch plug to the specific DC connector, the current passed through specific connector will be higher than that with only one PV string.
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Wiring Material List for application with 12 String 25A String Fuse Little Fuse /0SPF025.T - 1000V/25A ,4 pcs required per inverter MC4 Branch Plug -Male Cable Coupler (For polarity +) ,2 Pcs required per inverter -Female Cable Coupler (For polarity –) ,2 Pcs required per inverter Male cable coupler Female cable coupler...
End sleeve for each wire is necessary if 25mm or 3AWG is applied. End sleeve is not able to be installed if 1AWG is applied. RPI M30A and M50A support both 3P3W (3phase and PE) and 3P4W (3phase, N and PE) connections.
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• 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 for RPI M30A. • Strip 18 mm (0.7 inch) of insulation from all wires ends for RPI M50A.
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Wiring Assemble the AC plug and wires as the procedures shown in Figure 4-13 (RPI M30A) and Figure 4-14 (RPI M50A). The sequence of L1~ L3 can be connected randomly. However, N and PE must be connected correctly. 1. Fixed this part 3.
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Wiring Rotate to loose the AC plug AC plug Fix it Cable Fix it Rotate to tighten the inserter Cable Rotate gland to fix cable Inverter AC plug Cable Socket Rotate to tighten the plug Figure 4-14 AC plug illustrationfor M50A.
Rated current > short-circuit current of PV Array. • The input power to the inverter should not higher than the rated power shown in table 4-4. Type of limit RPI M30A RPI M50A Maximum input power 35 kW 52.5 kW DC1 or DC2 23.5 kW...
Wiring Model Current Rating Wire size RPI M30A_121 DC 30A 6 mm / 10 AWG RPI M50A_120 DC 15A 4 - 6mm / 12 - 10 AWG RPI M50A_122 DC 15A 4 - 6mm / 12 - 10 AWG Table 4-5 Cable size DC wiring polarities are divided into positive and negative, which is shown in Figure 4-15.
Wiring 4.5.1. RS-485 Connection The pin definition of RS-485 is shown in table 4-6. Different RS-485 connection needs different set up of the terminal resistor. • When single inverter is installed, the terminal resistor on its communication module should be switched ON. •...
Communication Module has 1 set of emergency power off function (EPO). Users can customize EPO function in Install Settings page. Please refer to section 5.2.7.6 EPO. RPI M30A/ M50A also provides 6 sets of digital input function (K1~K6). Please refer to Table 4-8 for the digital input setting.
Wiring 4.5.3. Dry Contact Connection RPI M30A/ M50A provide 2 sets of Dry Contact. These 2 Dry Contacts are linked together and have the same function. The function can be customized by users, please refer to section 5.2.7.5 Dry Contact.
A dangerous burn hazard is present in this situation. 5.1 LCD Flow Chart RPI M30A/ M50A include a 4x20 character type LCD display and 2 LED lights to indicate inverter’s status. For physical characteristics. Please refer to table 5-1 for more information about inverter’s statuses and LED inducator.
Turn on PV inverter Condition Green LED Red LED Standby or Countdown FLASH * Power ON Error or Fault Night time (No DC) Bootloader mode FLASH * * ON 1s / OFF 1s Table 5-1 LED indicator 5.2 First startup At first startup, users have to feed in AC power and switch on the Manual Switch.
Turn on PV inverter 5.2.2. Power Meter This page displays voltage, current and power from both AC and DC side. V 230 230 230 I 11.5 11.5 11.5 P 2645 2645 2645 Power: 7935 Frequency: 50.00 E-Today: 4350 3915 Figure 5-4 Power meter page 5.2.3.
Turn on PV inverter 5.2.4. Event Log Event Log has two subpages: Error Events page and Grid Report page. Error Events page displays all the events (Error and Fault) and it can show 30 records at a time. Grid Report page only displays the error that occurred at grid side, and it can show 5 records at a time.
Turn on PV inverter 5.2.5. Inverter Information This page can helps user to recognize the inverter. First section displays serial number, installation date, ID, and firmware version. Another 3 sections displays the settings of inverter functions. For more infromation about these settings, please refer to 5.2.7 Install Settings, 5.2.8 Active/Reactive power, and 5.2.9 FRT (Fault ride through).
Turn on PV inverter 5.2.7. Install Settings CAUTION The settings in Install Settings page can only be adjusted by qualified installers or engineers. Changing these settings may result in damage to the inverter and other equipment. To enter Install Settings page, users have to enter correct password. There are 3 sets of password with different permissions: user level, installer level, and manufacturer level.
Turn on PV inverter 5.2.7.2. Insulation Before connecting to grid, inverter will measure the impedance between the PV array and PE first. M30A & M50A models provide 4 types of impedance measurement methods (ON, Plus Grounded, Minus Grounded, and OFF) and 2 impedance limits. Installer must select the appropriate method based on PV array’s wiring.
Turn on PV inverter 5.2.7.4. Grid Settings Grid settings page includes the voltage and frequency protection points. These protection points are linked to electricity regulations. If there is no any special requirement, please do not change any grid settings. Inverter ID: 002 Voltage Protection High Off 276.0V...
Turn on PV inverter 5.2.7.5. Dry Contact Users can choose the trigger condition of dry contact. There are 8 options in the setting page: Disable, On Grid, Fan Fail, Insulation, Alarm, Error, Fault, and Warning. Please refer to Table 5-2 for more details about these options.
DC Injection Dry Contact RCMU ► Normal Close Figure 5-15 EPO page 5.2.7.7. AC connection RPI M30A and M50A models can support 3P3W and 3P4W system. Please select the correct AC wiring type. AC Connection 3P4W ► Anti-islanding Max. Power...
Turn on PV inverter 5.2.8. 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.
Turn on PV inverter Others Germany MV & Italy Gradient Gradient ( Hz ) ( Hz ) start = recovery protection protection recovery start Figure 5-21 Power vs Frequency parameters 5.2.8.3. 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...
Turn on PV inverter 5.2.8.4. Constant cosphi Inverter can feed in a fixed reactive power to grid. Users can set the power factor(cosphi) in Constant cosphi page. ► Constant cosphi Mode ► Cosphi (P) cosphi Ind 1.00 Constant Q Q(V) EXIT Figure 5-23 Constant cosphi page 5.2.8.5.
Turn on PV inverter Others Italy MV & Italy LV i limit i limit s limit s limit Curve A Curve B Figure 5-28 Q(V) parameters 5.2.9. FRT (Fault ride through) Some area requests that inverter should keep connected to grid when grid voltage drops suddenly in few seconds.
Maintenance 6.Maintenance Please check the unit regularly. 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. WARNING Before any maintenance, please switch AC and DC power off to avoid risk of electronic shock.
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Maintenance Once the inverter encounters voltage spikes (e.g. struck by lighting), SPD will protect the inverter and got damaged. If you find a warning message “SPD Fail” shown on display panel, please follow the steps below to replace the SPD. 1.Switch AC and DC power off and wait until LCD display turn off.
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Maintenance Figure 6-2 Recognize the damaged SPD unit Figure 6-3 Pull out the SPD unit...
Maintenance 6.2 Replace Internal String Fuse RPI M50A_120, and RPI M50A_122 models have internal string fuse in each Plus and Minus DC connector. The specifications of these fuses are revealed as below. Item: String Fuse (source 1) Item: String Fuse (source 2) Part number: 10GPV15U0 Part number: 0SPF015.T Rate amp: 15 A...
Maintenance Figure 6-5 Replace the fuse 6.3 Clean Fan Loosen the 4 screws shown in Figure 6-1. Once the screws are loose, pulling the fan bracket out will expose the connectors. Each fan has one wire connected. Figure 6-6 Diassembling fan panel...
Maintenance 6.4 Replace Fans 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. Figure 6-7 Removal of a fan 6.5 Clean Air Inlet Unscrew the 4 screws of air inlets and clean them regularly.
Error message and Trouble Shooting 7.Error message and Trouble Shooting ERROR Message Possible cause Action 1. Actual utility frequency is over 1. Check the utility frequency on the the OFR setting inverter terminal AC Freq 2. Check country setting High 2.
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Error message and Trouble Shooting ERROR Message Possible cause Action 1. Actual Solar2 voltage is over 1. Modify the solar array setting, and Solar2 1000Vdc make the Voc less than 1000Vdc High 2. Detection circuit malfunction 2. Check the detection circuit inside the (E31) inverter 1.
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Error message and Trouble Shooting FAULT Message Possible cause Action 1. Utility waveform is 1. Check the utility waveform. abnormal Grid connection of inverter need to be Injection far away from non-linear load if necessary 2. Detection circuit (F01, F02, malfunction 2.
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Error message and Trouble Shooting FAULT Message Possible cause Action 1. Insufficient input power 1. Check the input voltage, must >150Vdc 2. Auxiliary power circuitry 2. Check the auxiliary circuitry inside the HW DSP inverter ADC2 malfunction 3. Check the detection circuit inside the (F16) 3.
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Error message and Trouble Shooting FAULT Message Possible cause Action 1. Power line is disconnected 1. Check the power lines inside the inverter inside the inverter 2. Check the current feedback circuit inside HW Con. Fail 2. Current feedback circuit is the inverter (F26) defective...
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Error message and Trouble Shooting FAULT Message Possible cause Action 1. Test current loop is broken 1. Check the connection of CNP4 to CNM4 2. CTP4 is defective 2. Replace CTP4 with new one HW CT B Fail (F43) 3. Detection circuit malfunction 3.
De-Commissioning 8.De-Commissioning 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 Manual Switch to shut down the inverter. •...
Technical Data 9.Technical Data RPI M30A RPI M50A GENERAL Enclosure Powder coated aluminum -25~60℃, full power up to 40℃ Operating temperature (Please refer to figure 9-1 to 9-6.) Operating Altitude 2000m Relative humidity 0 – 100% non condensing. Environmental category...
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Technical Data RPI M30A RPI M50A MPP range (rated power) Balanced inputs (50/50) 520-800Vdc 520-800Vdc 700-800Vdc 700-800Vdc Maximum unbalanced inputs 350-800Vdc 350-800Vdc DC INPUT (Solar side) Number of inputs 6 pairs MC4 10 pairs MC4 30A * 2 50 A * 2...
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配 线 DC Wiring AC Wiring Must be Separate PV strings Communication Wiring RPI M30A * RPI M30A can support 3P3W system. AC Wiring DC Wiring Must be Separate PV strings Communication Wiring RPI M50A * RPI M50A can support 3P3W system.
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配 线 DC1+ DC2+ DC1- DC2- bus bar kit *2 RPI M50A 图 4-2 强制逆变器操作于并联模式...
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配 线 AC Wiring DC Wiring Separated connection only Isolated transformer Utility Inverter 3Ph, 3Ph, 400Vac 400Vac Communication Wiring DC1+ DC2+ Grounding fuse DC1- DC2- bus bar kit 图4-3 M50A DC端负接地配线图...
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配 线 AC Wiring DC Wiring Separated connection only Isolated transformer Utility Inverter 3Ph, 3Ph, 400Vac 400Vac Communication Wiring DC1+ DC2+ Grounding fuse DC1- DC2- bus bar kit *2 图4-4 M50A DC端正接地配线图...
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• 当太阳能板不接地时,机子DC端可接受并联 或是独立连接。 • RPI系列机种内部并未附带隔离变压器,若太阳能板为正端接地或负端接地 时,DC端仅允许并联配线并需于AC 端加装外部隔离变压器。 • 当太阳能正端或负端接地时,不可以启动PID功能,同时对地阻抗须设定为 “Plus Grounded”或是“Minus Grounded”。 • 不同的DC配线方式需于逆变器控制面板上设定不同的Insulation侦测方式, 请参考5.2.7 Install Settings。 PV Array DC Distribution box DC Wiring Parallel or Separate AC Wiring Communication Wiring * RPI M30A can support 3P3W system. 图4-5 M30A_121系统配线图(DC端不接地)
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配 线 PV Array 当太阳能模组配置选定“Plus Grounded”或是 “Minus Grounded”时,请关闭PID功能。 DC Distribution box (Plus-GND or Minus-GND) DC Wiring Must be Parallel Connection Must install a transformer Isolated transformer Utility Inverter 3Ph, 3Ph, 400Vac 400Vac Communication Wiring AC Wiring 图4-6 M30A_121系统配线图(DC正接地或负接地)
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配 线 线材压接完成后请按照图 4-13(适用于RPI M30A机种),以及图 4-14(适用 于RPI M50A机种)组装AC接头。逆变器可接受正相序或负相序连接,意即 L1~L3 连接顺序可调整,但N与PE则必须正确的连接。 1. Fixed this part 3. Depart the AC plug . 2. Rotate to loosen the AC plug 4. Insert the wires 5. Reassemble the AC plug 5. Tighten the screws to fixed the wires .
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配 线 Rotate to loose the AC plug AC plug Fix it Cable Fix it Rotate to tighten the inserter Cable Rotate gland to fix cable Inverter AC plug Cable Socket Rotate to tighten the plug 图 4-14 RPI M50A之AC接头配线图...
逆变器开机 5.2.2. Power Meter 此页面显示AC与DC端之电压、电流、功率等信息。 V 230 230 230 I 11.5 11.5 11.5 P 2645 2645 2645 Power: 7935 Frequency: 50.00 E-Today: 4350 3915 图5-4 Power meter页面 5.2.3. Energy Log 此页面可观看逆变器安装至今的总发电瓦时与总运作时间。 Energy Log Life Energy: 29200 Runtime: 7302 图5-5 Energy log页面...
逆变器开机 5.2.7. Install Settings 注 意! 此页面仅允许专业安装人员或有专业人员在旁指导时方可调整,任意更改 这些设定有可能造成逆变器损坏。 进入Install Settings页面前需要输入密码,密码分为三种权限:用户权力、 安装者权限以及制造商权限。以下章节仅会介绍用户权力与安装者权限所需 之各项设定值。 User Level: ► Inverter ID: 002 Inverter ID Insulation Insulation Country Country Grid Settings Dry Contact AC Connection Max. Power ► DC Injection Installer Level: Dry Contact Inverter ID RCMU Insulation Normal Close...
逆变器开机 5.2.7.4. Grid Settings Grid Settings页面包含各种电压与频率保护值,这些保护值乃依据各电力 法规所建立,若无特殊需求请勿修改任何保护值。 Inverter ID: 002 Voltage Protection High Off 276.0V ► ► Insulation Freq. Protection High On 259.0V Country Reconnect T 600s High Off T 0.3s If user enters wrong settings ► Grid Settings P Ramp Up 6000%/m EXIT Low Off...
逆变器开机 5.2.8. Active/Reactive power 进入实功/虚功控制页面前必须输入密码。此页面包含实功功率控制与虚功 功率控制两个主要功能。 实功功率控制有三种模式: Power Limit, Power vs. Frequency, and P(V); 虚功功率控制有四种模式: Constant cosphi, cosphi(P), Constant Q, and Q(V)。 这些模式将会在下面的章节中详细的介绍。 Warning: ► Active Power Ctrl Adj. would affect Reactive Power Ctrl energy production. Password: EXIT **** 图5-18 Active/Reactive power页面 5.2.8.1.
逆变器开机 Others Italy MV & Italy LV i limit i limit s limit s limit Curve A Curve B 图 5-28 Q(V)参数对照 5.2.9. FRT (Fault ride through) 根据某些特定地区之电力法规规范,当市电电压发生骤降时,在一定的时 间内逆变器必须维持并网状态。使用者可透过启动FRT功能并设定所需的参 数来达到这项要求。 General Settings Warning: Mode ► Install Settings Adj. would affect Dead Band -10% Active/Reactive Pwr...
设备维护 6. 设备维护 为确保PV Inverter正常运转,请至少每半年确认一次逆变器所有端子与螺丝是否 松脱、电缆线是否毁损、散热出风口有无异物阻塞。如有上述情形,请联络合格之 技术人员进行维修、清理或更换。 触电危险! 进行维护工作之前请务必将AC 与DC电源断电,避免触电危险。 6.1 更换突波保护器 (SPD) RPI M50A_120机种于AC与DC端皆有安装突波保护器,此保护器的详细规格 请参考表6-1。 SPD(DC) SPD(AC) Part number: GPU1-ZS1000 Y Part number: GPU1-C4/690/1P Y Work voltage:1000 Vdc Work voltage: 690 Vac Work Amp In (8/20): 20kA Work Amp In (8/20): 15kA Rate Amp I max(8/20): 40kA Rate Amp Imax (8/20): 30kA Temperature: -40 C~85 C...
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配 線 DC Wiring AC Wiring Must be Separate PV strings Communication Wiring RPI M30A * RPI M30A can support 3P3W system. AC Wiring DC Wiring Must be Separate PV strings Communication Wiring RPI M50A * RPI M50A can support 3P3W system.
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配 線 DC1+ DC2+ DC1- DC2- bus bar kit *2 RPI M50A 圖 4-2 強制逆變器操作於並聯模式...
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配 線 AC Wiring DC Wiring Separated connection only Isolated transformer Utility Inverter 3Ph, 3Ph, 400Vac 400Vac Communication Wiring DC1+ DC2+ Grounding fuse DC1- DC2- bus bar kit 圖4-3 M50A DC端負接地配線圖...
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配 線 AC Wiring DC Wiring Separated connection only Isolated transformer Utility Inverter 3Ph, 3Ph, 400Vac 400Vac Communication Wiring DC1+ DC2+ Grounding fuse DC1- DC2- bus bar kit *2 圖4-4 M50A DC端正接地配線圖...
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• 當太陽能板不接地時,機子DC端可接受並聯或是獨立連接。 • RPI系列機種內部並未附帶隔離變壓器,若太陽能板為正端接地或負端接地 時,DC端僅允許並聯配線並需於AC 端加裝外部隔離變壓器。 • 當太陽能正端或負端接地時,不可以啟動PID功能,同時對地阻抗須設定為 ”Plus Grounded” 或是 ”Minus Grounded”。 • 不同的DC配線方式需於逆變器控制面板上設定不同的Insulation偵測方式, 請參考5.2.7 Install Settings。 PV Array DC Distribution box DC Wiring Parallel or Separate AC Wiring Communication Wiring * RPI M30A can support 3P3W system. 圖4-5 M30A_121系統配線圖(DC端不接地)
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配 線 PV Array 當太陽能模組配置選定“Plus Grounded”或是 “Minus Grounded”時,請關閉PID功能。 DC Distribution box (Plus-GND or Minus-GND) DC Wiring Must be Parallel Connection Must install a transformer Isolated transformer Utility Inverter 3Ph, 3Ph, 400Vac 400Vac Communication Wiring AC Wiring 圖4-6 M30A_121系統配線圖(DC正接地或負接地)
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配 線 線材壓接完成後請按照圖 4-13(適用於RPI M30A機種),以及圖 4-14(適用 於RPI M50A機種)組裝AC接頭。逆變器可接受正相序或負相序連接,意即 L1~L3 連接順序可調整,但N與PE則必須正確的連接。 1. Fixed this part 3. Depart the AC plug . 2. Rotate to loosen the AC plug 4. Insert the wires 5. Reassemble the AC plug 5. Tighten the screws to fixed the wires .
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配 線 Rotate to loose the AC plug AC plug Fix it Cable Fix it Rotate to tighten the inserter Cable Rotate gland to fix cable Inverter AC plug Cable Socket Rotate to tighten the plug 圖 4-14 RPI M50A之AC接頭配線圖...
逆變器開機 5.2.2. Power Meter 此頁面顯示AC與DC端之電壓、電流、功率等資訊。 V 230 230 230 I 11.5 11.5 11.5 P 2645 2645 2645 Power: 7935 Frequency: 50.00 E-Today: 4350 3915 圖5-4 Power meter頁面 5.2.3. Energy Log 此頁面可觀看逆變器安裝至今的總發電瓦時與總運作時間。 Energy Log Life Energy: 29200 Runtime: 7302 圖5-5 Energy log頁面...
逆變器開機 5.2.7. Install Settings 注 意! 此頁面僅允許專業安裝人員或有專業人員在旁指導時方可調整,任意更改 這些設定有可能造成逆變器損壞。 進入Install Settings頁面前需要輸入密碼,密碼分為三種權限:使用者權限、 安裝者權限以及製造商權限。以下章節僅會介紹使用者權限與安裝者權限所 需之各項設定值。 User Level: ► Inverter ID: 002 Inverter ID Insulation Insulation Country Country Grid Settings Dry Contact AC Connection Max. Power ► DC Injection Installer Level: Dry Contact Inverter ID RCMU Insulation Normal Close...
逆變器開機 5.2.7.4. Grid Settings Grid Settings頁面包含各種電壓與頻率保護值,這些保護值乃依據各電力 法規所建立,若無特殊需求請勿修改任何保護值。 Inverter ID: 002 Voltage Protection High Off 276.0V ► ► Insulation Freq. Protection High On 259.0V Country Reconnect T 600s High Off T 0.3s If user enters wrong settings ► Grid Settings P Ramp Up 6000%/m EXIT Low Off...
逆變器開機 5.2.8. Active/Reactive power 進入實功/虛功控制頁面前必須輸入密碼。此頁面包含實功功率控制與虛功 功率控制兩個主要功能。 實功功率控制有三種模式: Power Limit, Power vs. Frequency, and P(V); 虛功功率控制有四種模式: Constant cosphi, cosphi(P), Constant Q, and Q(V)。 這些模式將會在下面的章節中詳細的介紹。 Warning: ► Active Power Ctrl Adj. would affect Reactive Power Ctrl energy production. Password: EXIT **** 圖5-18 Active/Reactive power頁面 5.2.8.1.
逆變器開機 Others Italy MV & Italy LV i limit i limit s limit s limit Curve A Curve B 圖 5-28 Q(V)參數對照 5.2.9. FRT (Fault ride through) 根據某些特定地區之電力法規規範,當市電電壓發生驟降時,在一定的時間 內逆變器必須維持併網狀態。使用者可透過啟動FRT功能並設定所需的參數 來達到這項要求。 General Settings Warning: Mode ► Install Settings Adj. would affect Dead Band -10% Active/Reactive Pwr...
設備維護 6. 設備維護 為確保PV Inverter正常運轉,請至少每半年確認一次逆變器所有端子與螺絲是否 鬆脫、電纜線是否毀損、散熱出風口有無異物阻塞。如有上述情形,請聯絡合格 之技術人員進行維修、清理或更換。 觸電危險! 進行維護工作之前請務必將AC 與DC電源斷電,避免觸電危險。 6.1 更換突波保護器 (SPD) RPI M50A_120機種於AC與DC端皆有安裝突波保護器,此保護器的詳細規格 請參考表6-1。 SPD(DC) SPD(AC) Part number: GPU1-ZS1000 Y Part number: GPU1-C4/690/1P Y Work voltage:1000 Vdc Work voltage: 690 Vac Work Amp In (8/20): 20kA Work Amp In (8/20): 15kA Rate Amp I max(8/20): 40kA Rate Amp Imax (8/20): 30kA Temperature: -40 C~85 C...