Delta RPI M80U Operation And Installation Manual
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Delta RPI M80U Operation And Installation Manual

Grid-tie transformerless solar inverter
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Grid-tie Transformerless Solar Inverter
RPI M80U
Operation and Installation Manual
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Summary of Contents for Delta RPI M80U

  • Page 1 The power behind competitiveness Grid-tie Transformerless Solar Inverter RPI M80U Operation and Installation Manual www.deltaww.com...

  • Page 3: Table Of Contents

    Table of Contents ......... . . 1　Safety .
  • Page 4 ..... . Disassemble the Wiring box compartment ......6　Error message and Trouble Shooting .
  • Page 5 Figure ....... . Figure 2-1 : Components of M80U ....... Figure 2-2 : Overview of M80 series .
  • Page 6 ......Figure 5-5 : LED indicator on fuse holder ........Figure 5-6 : Pull out the fuse .
  • Page 7 Table ....... . . Table 2-1 : Packing list of M80U .

  • Page 8: 1　Safety

    DELTA ELECTRONICS, INC. Service engineers and end users may not divulge the information contained herein or use this manual for purpose other than those strictly connected with correct use of the product.

  • Page 9: General Safety

    Photovoltaic modules with a high parasitic capacitance to ground may only be applied if the capacitive coupling does not exceed 8μF. The inverter must only be operated in countries for which it is approved by Delta and the grid operator.

  • Page 10: Symbols

    Safety 1.2.2 Symbols This section describes the definition of the symbols in this manual. In order to prevent both personal injury and property damage, and to ensure long-term operation of the product, please read this section carefully and follow all the safety instructions while you use the product. DANGER! - This warning indicates an immediate hazard which will lead to death or serious injury may occur.
  • Page 11 Safety INFORMATION - Additional information is indicated by an exclamation mark enclosed by double circle. This means the following section contains important information and user should follow the instruction to prevent any hazards. DANGER : ELECTRICAL HARZARD!! - This warning indicates an immediate electrical hazard which will lead to death or s erious injury may occur.

  • Page 12: 2　Introduction

    Introduction 2　Introduction The RPI M80U is designed to enable the highest levels of efficiency and provide longest operating life of photovoltaic inverter by state-of-the-art high-frequency and low EMI technology. It is suitable for outdoor use. The inverter installation must be performed by an authorized electrician in accordance with the local and the National Electrical Code®...

  • Page 13: Unpack The Inverter

    2.2 Unpack the Inverter The components of M80U is shown as Figure 2-1. ① ② ③ Figure 2-1 : Components of M80U RPI M80U Object Description Delta Solar Inverter 1 pc RPI series solar inverter Important instructions for solar inverter...
  • Page 14 Introduction M80U Air Outlets / _120 Smart Fans LCD / LED Display and Buttons 2" AC Cable Opening Rating Label Communication Connetions Air Inlets 1½" gland for DC DC Switch Wiring M80U Air Outlets / _121 Smart Fans LCD / LED Display and Buttons 2½"...
  • Page 15 Introduction The following Figure 2-3 shows the rating labels of M80U / M80A and the table (Table 2-2) along with these labels explains the definition of the specific mark. Figure 2-4 illustrates the layout of wiring box of M80U / M80A and the table (Table 2-3) along with this layout describes the detail of each area.
  • Page 16 Introduction ⑭ ⑯ ⑮ ⑫ ⑬ ⑥ ⑩ IN 1 IN 2 ⑰ ⑪ ① ⑧ ③ ⑨ ⑭ ⑯ ⑮ ⑬ ⑧ IN 1 ⑤ ② IN 2 ⑨ ⑰ ① ⑦ ⑫ ④ Figure 2-4 : Wiring box layout of M80U / M80A Component Component 2.0”...

  • Page 17: 3　Installation

    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. The chapter contains instructions for (1) Mechanical installation;...
  • Page 18 Installation 400.0 67.5 150.0 410.0 Figure 3-1 : Mounting bracket dimensions...
  • Page 19 Installation Necessary for vertical fixing Necessary for horizontal fixing Figure 3-2 : Required position for at least 8 screws Figure 3-3 : Prohibited position for screws...
  • Page 20 Installation Max. 75 Figure 3-4 : Permitted mounting positions > 75 Figure 3-5 : Prohibited mounting positions O : Permitted / X : Prohibited...
  • Page 21 Installation Wall > 33cm > 60cm > 50cm > 80cm > 5cm Inverter #1 Inverter #2 > 50cm Figure 3-6 : Required mounting clearances CAUTION ! - Please follow the instructions above such as permitted positions and permitted mounting clearances for the correct installation.

  • Page 22: Electrical Installation For Ac Cabling

    - Failed to follow the instructions may damage AC cable. CAUTION : POINT OF CONNECTION ! - The RPI M80U solar Inverters must be connected to a 480 Vac utility service. NEC 705.12(D)(1) requires that the inverter (every fixed appliance) must be connected to a separate, dedicated circuit breaker with no other outlets or devices connected to the same circuit (not shared by any other appliance).

  • Page 23: Ac Cabling Installation For M80U

    Installation 3.2.1 AC Cabling Installation for M80U _120 Please follow the following steps for assembling the AC terminal (M80U _120 • It is important to choose the proper size for AC cable. • Strip off all wires for 14 mm. •...
  • Page 24 Installation AC Terminal Torque 6.9N-m to fix the screw PE L1 2" cable gland for AC with EMT Figure 3-8 : Location for AC terminal Figure 3-8 illustrates the location of cable gland for AC terminal as shown above : - It is important to choose for the fixing screws.

  • Page 25: Ac Cabling Installation For M80U

    Installation 3.2.2 AC Cabling Installation for M80U _121 Please follow the following steps for assembling the AC terminal (M80U _121 • It is important to choose the proper size for AC cable. • Strip off all wires for 22 mm. •...
  • Page 26 Installation AC Terminal 160mm bending space 2 ½ " cable gland for AC Torque 8.0N-m to fix the screw with EMT AC Terminal 2 ½ " cable gland for AC with EMT Torque 8.0N-m to fix the screw Figure 3-10 : Two optional Locations for AC terminal...
  • Page 27 Installation Please follow the following guideline for cabling if you use aluminum cables. Guideline for aluminum conductor : - The oxide layer must be removed from the surface of the stripped aluminum conductor. - The stripped aluminum conductor is greased with Vaseline or contact grease with comparable properties after oxide layer removed.

  • Page 28: Electrical Installation For Dc Cabling

    Installation 3.3 Electrical Installation for DC Cabling DANGER : ELECTRICAL HARZARD!! - PV array converts sunlight into electric power with high DC voltage and high DC current which can cause dangerous electrical shock hazard. Please use an opaque material to cover the PV array before wiring or cabling. - Please ensure the correct polarities are connected when DC cabling is applied.
  • Page 29 Installation IN 1 IN 2 Figure 3-12 : Wiring Box layout for M80U Conductor cross-section : 10~14 AWG 3.0 ~ 6.0mm² Torque 2.3N-m to fix the screw 1½ " cable gland for DC with EMT Figure 3-13 : Location for DC terminals for M80U...

  • Page 30: Dc Cabling Installation For M80U

    Installation 3.3.2 DC Cabling Installation for M80U _121 Please read the following instructions for attaching DC terminals (M80U _121 • It is important to choose the proper size for DC cable. • The cross-sectional area for each internal cable is 2~3/0 AWG. •...
  • Page 31 Installation DC Terminal 2 ½ " cable gland for DC with EMT IN1+ IN1- IN2+ IN2- 160mm bending space Stripping length : 22 ~ 24mm Conductor cross-section : 2 ~ 3/0 AWG(35 ~ 95mm²) Torque 8.0N-m to fix the screw Figure 3-15 : Location for DC terminals for M80U...
  • Page 32 Installation Please follow the following guideline for cabling if you use aluminum cables. Guideline for aluminum conductor : - The oxide layer must be removed from the surface of the stripped aluminum conductor. - The stripped aluminum conductor is greased with Vaseline or contact grease with comparable properties after oxide layer removed.

  • Page 33: Communication Module Connections

    Installation 3.4 Communication Module Connections The communication module of M80U provides VCC, RS-485, dry contact, EPO, and Digital Input terminals for different use. Dry Contact Terminal Resistor & VCC Switch EPO*1 & VCC & RS-485 Digital Inputs*6 Figure 3-17 : Communication Module 3.4.1 RS-485 Connection The pin definition of RS-485 is shown in the following table.
  • Page 34 Installation Function VCC (+12V) 1 2 3 4 5 6 DATA+ DATA- DATA+ DATA- Table 3-1 : Definition of RS-485 Terminal Resistor 120Ω(1/2W) DATA+ to DATA- Data Format: Baud rate: 19200 RS485/USB Data bits: 8 Stop bit: 1 RS485/RS232 Parity: N/A Figure 3-18 : Multiinverter connection illustration Switch 1 Switch 2...

  • Page 35: Epo Function & Digital Input

    Installation 3.4.2 EPO Function & Digital Input Communication Module has 1 set of emergency power off function (EPO). Users can customize EPO function in Install Settings page. EPO & Digital Input Figure 3-19 : EPO function Short Inverter’s action V1 & K0 Emergency power off (EPO) V1 &...

  • Page 36: 4　Commissioning

    Commissioning 4 Commissioning CAUTION : HOT SURFACES, DO NOT TOUCH! - This warning indicates be careful of hot surfaces when operating the product. - Do not perform any task until the product cool down sufficiently. 4.1 Display Introduction RPI M80 series include a 4x20 character type LCD display and 2 LED lights ( located on the left-hand side of the LCD ) to indicate inverter’s status as shown in Figure 4-1.
  • Page 37 Commissioning ENT : Enter Menu or Confirm LED Indicator (RED) UP : Move UP LED Indicator (GRN) Down : Move Down EXIT : Exit Menu Figure 4-1 : Panel indicator Condition Green LED Red LED Standby or Countdown FLASH * Power ON Error or Fault Night time (No DC)

  • Page 38: First Startup

    Commissioning 4.2 First startup At first startup, user has to feed in AC power and switch on the manual switch and DC Power Switch. Inverter will start up and LCD display panel will turn on when powered on through AC. Please set language and the correct country (Grid Code) according to your region and wait for the AFCI Self Test.

  • Page 39: Home Page

    Commissioning 4.2.1 Home Page When inverter is being operated normally, the LCD will display the homepage as shown in Figure 4-3, user can get the information about output power, inverter status, E-today, date and time. Press "any" key in home page will be directed to the main menu. Press EXIT at main menu or wait 5 minutes without any operation, the display will return to homepage.

  • Page 40: Energy Log

    Commissioning 4.2.3 Energy Log User can view the inverter’s life energy and life runtime via Energy Log page. Energy Log Life Energy: 2920.0 Runtime: 7302 Figure 4-5 : Energy log Page 4.2.4 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.

  • Page 41: Inverter Information

    Commissioning 4.2.5 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 information about these settings, please refer to 4.2.7 Install Settings, 4.2.8 Active/Reactive power, and 4.2.9 FRT (Fault ride through).

  • Page 42: Install Settings

    Commissioning 4.2.7 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.

  • Page 43: Inverter Id

    Commissioning 4.2.7.1 Inverter ID Inverter ID is used in RS-485 communication, for PC recognizing the inverter. If users connect several inverters together via RS-485, each inverter must have different ID. ► Inverter ID: 002 Insulation Setting ID: Grid Code ID = 002 Grid Settings EXIT Figure 4-10 : Inverter ID page...

  • Page 44: 5　Maintenance

    Maintenance 5　Maintenance Please check the unit regularly. If there are any impaired or loose parts, please contact your solar installer. Ensure that there are no fallen objects in the path of the heat outlet. WARNING ! - Before any maintenance, please switch AC and DC power off to avoid risk of electrical shock.
  • Page 45 Maintenance The surge protection devices (SPD), located on both AC and DC input terminals, are designed to protect sensitive circuit elements of the inverter from damage caused by lightning and electrical transient surges. If you find a warning message “AC Surge” or “DC Surge” shown on display panel, please follow the steps below to replace the SPD.
  • Page 46 Maintenance Figure 5-3 : The alarms indicate AC and DC SPD Fail AC SPD DC SPD Figure 5-4 : Pull out the connectors and remove the screws as shown in arrows...

  • Page 47: Replace Internal String Fuse

    5.2 Replace Internal String Fuse RPI M80 series models have internal string fuse in each positive and negative DC connector. The specifications of these fuses are described below. The RPI M80U equips with fuses which are enclosed with Dead Front Fuse _120 Holders inside the wiring box compartment.
  • Page 48 Maintenance - Item : String Fuse (source 1) - Item : String Fuse (source 2) - Part number : 10GPV15U0 - Part number : 0SPF015.T - Rate amp : 15 A - Rate amp : 15 A - Rate voltage : 1000 V - Rate voltage : 1000 V - Manufacturers : Hollyland - Manufacturers : Littelfuse...

  • Page 49: Smart Fans Replacement And Filters Cleaning

    Maintenance 5.3 Smart Fans Replacement and Filters Cleaning This section provides the instructions for smart fans replacement and filters cleaning for RPI M80 series models. Figure 5-7, 5-8, 5-9 illustrates the locations of smart fans. RPI M80 series models have smart fans that can be categorized into two parts: Wiring Box compartment (WB) and Power Module compartment (PM) as shown in the overview picture (Figure 5-7).
  • Page 50 Maintenance The RPI M80 series feature 12" potting fans with filter inside the power module compartment. The potting fans are designed long service life that provides high reliability. They feature detection of "FAN-FAIL" alarm as well as power de-rating behavior for safety operation. The Cooling Fan kit is easy to be removed and cleaned.
  • Page 51 Maintenance 1.Wiring Box compartment (WB): User should disassemble the top 2 pcs screws (2 Black ones as shown in Figure 5-10) outside the fan cabinet and disconnect the connector (white one as shown in Figure 5-10) right in front of the fan cover.
  • Page 52 Maintenance ① ① ② ② ③ ③ ④ ④ ⑤ Figure 5-11: Disassembling fans inside the power module compartment (showing one side only)
  • Page 53 Maintenance Figure 5-12 illustrates filters location of RPI M80 series models. Figure 5-12 : Removal of filters...

  • Page 54: Commissioning

    Maintenance 5.4 De-Commissioning If it is necessary to put the device out of operation for maintenance and / or storage, please follow the instructions below. DANGER : ELECTRICAL HARZARD!! To avoid any serious injuries, please follow the procedures: - Switch off Manual Switch to shut down the inverter. - Switch off AC circuit breaker to disconnect with electricity grid.
  • Page 55 Maintenance Disassemble the Wiring box compartment In order to decommission the inverter of its service life, please follow the following instructions. In order to disassemble the wiring box compartment (WB) if neccessary, please follow the following instructions. 1. Please make sure turning off the external AC breaker and DC switches 2.
  • Page 56 Maintenance Please confirm both the AC and DC power is turned off. 4. Open the wiring box compartment lid. 5. Then remove AC, DC, communication cables. 6. Unscrew those screws shown in Figure 5-14. AC cables DC cables Communication cables Figure 5-14 : Remove AC, DC, and communication cables and then unscrew 6 screws...
  • Page 57 Maintenance 7. Unscrew 8 screws and use hands to grip tightly to separate the wiring box compartment from the power module compartment as shown in Figure 5-15. Figure 5-15 : Remove 8 screws and then separate WB from PM...
  • Page 58 Error message and Trouble Shooting 6　Error message and Trouble Shooting ERROR Message Possible cause Action 1. Actual utility frequency is over 1. Check the utility frequency AC Freq the OFR setting 2. Check country setting High 2. Incorrect country setting 3.
  • Page 59 Error message and Trouble Shooting ERROR Message Possible cause Action 1. Modify the solar array setting, and Solar2 1. Actual Solar2 voltage is over make the Voc less than 1000Vdc High 1000Vdc 2. Contact our customer service for (E31) 2. Detection circuit malfunction technical support 1.
  • Page 60 Error message and Trouble Shooting FAULT Message Possible cause Action 1. Check the utility waveform. Grid connection of inverter need to be Injection 1. Utility waveform is abnormal far away from non-linear load if necessary (F01, F02, 2. Detection circuit malfunction 2.
  • Page 61 Error message and Trouble Shooting FAULT Message Possible cause Action 1. Check the input voltage, must >150Vdc 1. Insufficient input power HW DSP 2. Check the auxiliary circuitry inside the 2. Auxiliary power circuitry ADC2 inverter malfunction (F16) 3. Contact our customer service for 3.
  • Page 62 Error message and Trouble Shooting FAULT Message Possible cause Action 1. Power line is disconnected 1. Check the power lines inside the inverter HW Con. Fail inside the inverter 2. Contact our customer service for (F26) 2. Current feedback circuit is technical support defective 1.
  • Page 63 Error message and Trouble Shooting FAULT Message Possible cause Action 1. Test current loop is broken HW CT B Fail Contact our customer service for 2. CTP4 is defective (F43) technical support 3. Detection circuit malfunction 1. Test current loop is broken HW CT C Fail Contact our customer service for 2.
  • Page 64 Technical Data 7　Technical Data Model RPI M80U RPI M80U _120 _121 DC Input Max. input power 88kW 106kW Rcommended PV power 1000 V Max. input voltage Operating voltage range 200 - 1000 V Start voltage > 250 V MPP voltage, rated power...
  • Page 65 Technical Data Model RPI M80U RPI M80U _120 _121 Efficiency Peak Effieiency 98.8 % 98.5 % Euro Effieiency 98.4 % CEC Effieiency Information Communication port RS-485 20 x 4 LCD Display Regulation UL 1741, UL 1998, IEEE 1547, IEEE 1547.1 CSA C22.2 EN 61000-6-2, EN 61000-6-3, IEC 62109-1/-2 General Data Operating temp.
  • Page 68 Version 1.01 | 2016 | Mar.

This manual is also suitable for:

Rpi m80u 120Rpi m80u 121Rpi m80a 120

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