Delta M50A-260 Installation And Operation Manual
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Delta M50A-260 Installation And Operation Manual

Solar inverter
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Installation and Operation Manual
Solar Inverter
M50A_260 (Delta part number RPI503M260000)
Product version L or M
Europe
Installation and Operation Manual M50A_260 RPI503M260000 Product version L and M EU V1.3 EN 2023-08-14

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Summary of Contents for Delta M50A-260

  • Page 1 Installation and Operation Manual Solar Inverter M50A_260 (Delta part number RPI503M260000) Product version L or M Europe Installation and Operation Manual M50A_260 RPI503M260000 Product version L and M EU V1.3 EN 2023-08-14...
  • Page 2 Electronics (Netherlands) B.V. must be marked with the words "Translation of the original operating instructions." and DSS software version 6.0 or higher Delta Electronics (Netherlands) B.V. The Delta part number can be found on the type plate of the Tscheulinstraße 21 inverter. 79331 Teningen...
  • Page 3 Notes on the product versions OBX19900075WL Product version Changes to the previous model This is a new product. L / M The last letter of the serial number indicates the product version. Installation and Operation Manual M50A_260 RPI503M260000 Product version L and M EU V1.3 EN 2023-08-14...

  • Page 4: Table Of Contents

    Table of Contents Table of Contents 1. About this manual ............8 Purpose of this manual.
  • Page 5 MyDeltaSolar app with DC1 Data Collector from Delta ....... . .
  • Page 6 Commissioning with the Delta Service Software (DSS) ........
  • Page 7 Table of Contents 12.2 Procedure ............144 13.

  • Page 8: About This Manual

    WARNING Delta Electronics is not responsible for damage resulting from failure to follow the safety and operating instructions set out in Indicates a hazardous situation that, if not avoided, this manual.

  • Page 9: Writing And Labeling Conventions

    1 About this manual Target audience of this manual Writing and labeling conventions Some sections in this manual are specially labeled. Labeling of work instructions Work instructions that must be performed in a specific sequence are numbered accordingly. Numbered work instructions must always be performed in the specified sequence.

  • Page 10: Basic Safety Instructions

    Electric shock ● All repair work on the inverter must be carried out by Delta The inverter has a high leakage current value. Electronics. Otherwise the warranty will be void. ► Always connect the ground cable first, then ●...

  • Page 11: Intended Purpose

    3 Intended purpose Intended purpose The inverter may be used only for the specified intended pur- pose. The intended purpose of the inverter is defined as follows: ● Use in stationary solar systems that are connected to the public grid. For conversion of the DC power that is generat- ed by the solar modules of the solar system into AC power which is fed into the local power grid.

  • Page 12: Product Overview

    For releasing the door screws and securing the open door from slam- ming shut. Quick Installation Allen key Guide Installations- und Betriebsanleitung Installations- und Betriebsanleitung Solar-Wechselrichter Solar-Wechselrichter M70A_260 (Delta-Teilenummer RPI703M260000) M70A_260 (Delta-Teilenummer RPI703M260000) Belgien Belgien Deutschland Deutschland Österreich Österreich Schweiz Schweiz...

  • Page 13: Sub-1G Antenna

    4 Product overview Scope of delivery 4.1.2 Sub-1G antenna For mounting the Sub-1G antenna to the inverter. Sub-1G antenna Bracket For screwing the bracket onto the inverter; screws with spring washer and washer 1 set of mounting screws Installation and Operation Manual M50A_260 RPI503M260000 Product version L and M EU V1.3 EN 2023-08-14...

  • Page 14: Accessories To Be Ordered Separately

    4 Product overview Accessories to be ordered separately Accessories to be ordered separately Accessories for floor mounting For mounting the feet on the For screwing the inverter onto the inverter; machine screw with spring floor washer and washer Feet for ground Mounting screws for mounting feet...

  • Page 15: Overview Of Components And Connections

    4 Product overview Overview of components and connections Overview of components and connections Fig. 4.1: Overview of external components and connections Air outlet Left mounting hole + grounding connection Wi-Fi module (optional) AC cable gland DC disconnector 1+2 Cable gland for RS485, digital inputs, dry contacts, external power-off DC connector panel Type plate...
  • Page 16 4 Product overview Overview of components and connections Fig. 4.2: Overview of internal components with protective covers removed 1 Type 2 DC surge protection devices AC connection terminals 2 Internal fan 2 Internal fan 1 3 Type 2 AC surge protection devices Connection terminals for RS485, digital inputs, dry contacts and external power-off Installation and Operation Manual M50A_260 RPI503M260000 Product version L and M EU V1.3 EN 2023-08-14...

  • Page 17: Leds

    4 Product overview LEDs LEDs Grid Alarm Explanation Countdown (inverter is starting up). The inverter is connected to the grid. Error. Power-off via external signal. Warning. Solar system failure. Grid Grid LED: green Solar system warning. Alarm Alarm LED: red / yellow Comm.

  • Page 18: Ac-Side Components

    4 Product overview AC-side components 4.5.3 AC Surge Protection Devices AC-side components Related topics “5.4 Planning the grid connection (AC)”, page 37 “7.8 Connecting the grid (AC)”, page 76 4.5.1 AC cable gland Fig. 4.5: View of type 2 AC surge protection devices with the cover removed The inverter has replaceable type-2 AC surge protection devices (EN 61463-11) which protect the inverter against excessive volt-...

  • Page 19: Dc-Side Components

    4 Product overview DC-side components 4.6.2 DC disconnectors DC-side components Related topics “5.5 Planning the connection of the solar modules (DC)”, page “7.9 Connecting the solar modules (DC)”, page 80 4.6.1 DC connector panel Fig. 4.8: DC disconnectors The DC disconnectors are marked on the inverter with the words SWITCH 1 and SWITCH 2.

  • Page 20: Dc Surge Protection Devices

    4 Product overview DC-side components 4.6.3 DC Surge Protection Devices Fig. 4.10: Both DC disconnectores in the ON position = the connection to the solar modules is closed Fig. 4.11: View of the DC surge protection devices with the cover removed The connection between the inverter and the solar modules isclosed when both DC disconnectores are in the ON position.

  • Page 21: Communication Connection

    4 Product overview Communication connection Communication connection Connection Connector type 2 x RS485 (DATA+ and DATA–) Terminal block 1 x VCC (12 V, 0.5 A) Terminal block Related topics 6 x digital inputs Terminal block “5.7 Planning the device communication and plant monitoring”, 2 x dry contacts Terminal block page 45...

  • Page 22: Grounding Connection

    4 Product overview Grounding connection Grounding connection Related topics “5.4.6 Planning grounding of the inverter”, page 38 “7.5 Grounding the inverter housing”, page 58 4.8.1 Grounding the inverter housing The inverter offers two possibilities for grounding the inverter Fig. 4.15: Grounding connection at the left mounting hole housing.

  • Page 23: Cooling System

    4 Product overview Cooling system 4.9.2 Internal fans Cooling system The internal fans circulate the air inside the inverter to prevent heat buildup. Related topics “5.1 Installation location”, page 29 “11.5 Cleaning/replacing the fan module”, page 109 “11.6 Cleaning the air outlets”, page 113 4.9.1 Air inlet, air outlet and fan module Fig.

  • Page 24: Internal Heat Sinks

    4 Product overview Cooling system 4.9.3 Internal heat sinks Fig. 4.21: Rear cover plate Fig. 4.22: Internal heat sinks with rear cover plate removed The rear cover plate can be removed to gain access to the inter- nal heat sinks. Installation and Operation Manual M50A_260 RPI503M260000 Product version L and M EU V1.3 EN 2023-08-14...

  • Page 25: Sub-1G Antenna

    4 Product overview Sub-1G antenna 4.10 Sub-1G antenna Fig. 4.23: Sub-1G antenna Sub-1G antenna and mounting materials are included in the scope of delivery. Related topics “6. Planning the Commissioning”, page 51 “11.10 Installing/replacing the Sub-1G antenna”, page 135 Installation and Operation Manual M50A_260 RPI503M260000 Product version L and M EU V1.3 EN 2023-08-14...

  • Page 26: Wi-Fi Module

    4 Product overview Wi-Fi module 4.11 Wi-Fi module Fig. 4.24: Position of the Wi-Fi module The Wi-Fi module is an accessory that must be ordered sepa- rately. Related topics “6. Planning the Commissioning”, page 51 “11.11 Installing/replacing the Wi-Fi module”, page 139 Installation and Operation Manual M50A_260 RPI503M260000 Product version L and M EU V1.3 EN 2023-08-14...

  • Page 27: Type Plate And Markings

    The inverter fulfills the requirements of VDE-AR-N 4110. VDE-AR-N 4110 CE mark. By applying this mark, Delta declares that the inverter satisfies the provi- sions of the applicable EU directives. Installation and Operation Manual M50A_260 RPI503M260000 Product version L and M EU V1.3 EN 2023-08-14...
  • Page 28 4 Product overview Type plate and markings Symbols on the type label Meaning This inverter is not separated from the grid by a transformer. Before working on the inverter, read the supplied manual and follow the instructions provided. The inverter housing can become very hot during operation. The inverter housing must be grounded if this is required by local regulations.

  • Page 29: Planning The Installation

    5 Planning the installation Installation location Special notes on ground mounting Planning the installation In principle, the inverter can be mounted directly onto the ground This chapter describes only the planning of the or directly onto the roof in the case of roof systems. installation work.

  • Page 30: Installation Height

    5 Planning the installation Installation location 5.1.2 Installation height ► Mount the inverter so that the LEDs are always visible. 5.1.3 Installation position Fig. 5.2: Installation position ► Mount the inverter vertically. 5.1.4 Outdoor Installations Fig. 5.3: For outdoor installations, protect the inverter from direct sun, UV radiation, rain and snow The inverter has a protection degree of IP65 and can be installed indoors and outdoors.

  • Page 31: Installation Clearances And Air Circulation

    5 Planning the installation Installation location 5.1.6 Installation clearances and air circulation > 600 > 300 > 300 and air circulation Fig. 5.4: Mounting distances and air circulation, variant 1 (in mm) > 300 > 300 ... 600 > 300 and air circulation Fig.
  • Page 32 5 Planning the installation Installation location > 50 > 300 > 300 and air circulation Fig. 5.6: Mounting distances and air circulation, variant 3 (in mm) ► Ensure sufficient air circulation. There must not be heat buildup around the inverter. For installation clearances of 30 to 60 cm between two inverters, install a separation plate (A) between the inverters.

  • Page 33: Characteristic Curves

    5 Planning the installation Characteristic curves Characteristic curves = 230 / 400 V = 50 kW) cos ϕ = 0,9 110% 100% 90 % 450V 80 % 505V 600V 70 % 800V 850V 60 % 900V 50 % Ambient temperature [°C] Characteristic curve “Active power control depending on the ambient temperature, cos φ...
  • Page 34 5 Planning the installation Characteristic curves = 230 / 400 V = 50 kVA) cos ϕ = 0,9 110% 100% 90 % 80 % 460V 520V 600V 70 % 720V 800V 60 % 900V 50 % Ambient temperature [°C] Characteristic curve “Apparent power control depending on the ambient temperature, cos φ = 0.90, AC voltage 230/400 V” Fig.

  • Page 35: Dimensions

    5 Planning the installation Dimensions Dimensions 144,5 263,4 Fig. 5.11: Inverter with mounting plate, dimensions without antennae (in mm) Installation and Operation Manual M50A_260 RPI503M260000 Product version L and M EU V1.3 EN 2023-08-14...
  • Page 36 5 Planning the installation Dimensions Sub-1G Wi-Fi Fig. 5.12: Inverter, dimensions with antennae (in mm) Feet for floor mounting. Dimensions (in mm) Fig. 5.13: Installation and Operation Manual M50A_260 RPI503M260000 Product version L and M EU V1.3 EN 2023-08-14...

  • Page 37: Planning The Grid Connection (Ac)

    This means that the inverter meets the require- ments of DIN VDE 0100-712. Possible error events were assessed by Delta in accordance with the current installation standards. The assessments showed that no hazards arise from operating the inverter in combination with an upstream, type A residual current circuit breaker (FI circuit breaker, RCD).

  • Page 38: Planning Grounding Of The Inverter

    5 Planning the installation Planning the grid connection (AC) 5.4.6 Planning grounding of the inverter WARNING High current ► Always observe the local regulations relating to grounding cable requirements. ► To increase the safety of the system, always use the grounding screw to ground the inverter housing even when this is not required by the local regulations.

  • Page 39: Permissible Grid Voltages

    5 Planning the installation Planning the grid connection (AC) ► Germany: Follow the installation instructions of VDE 0100- 5.4.7 Permissible grid voltages 712. This standard contains the requirements for minimum 3P3W Voltage Range 3P4W Voltage Range cable diameters and for avoiding overheating due to high currents.

  • Page 40: Special Tools Required

    5 Planning the installation Planning the grid connection (AC) NOTICE To ensure a safe and reliable contact with alumi- num conductors, always perform the following work steps: ► Keep the installation location as free as possible from moisture or corrosive atmospheres.

  • Page 41: Planning The Connection Of The Solar Modules (Dc)

    5 Planning the installation Planning the connection of the solar modules (DC) Planning the connection of the solar NOTICE modules (DC) Ingress of moisture Moisture can enter via open DC connectors. ► To ensure protection degree IP65, close un- used DC connectors with the rubber plugs Related topics that are attached to the DC connectors.

  • Page 42: Arrangement Of The Dc Inputs On The Dc Connection Panel

    5 Planning the installation Planning the connection of the solar modules (DC) 5.5.3 Arrangement of the DC inputs on the DC 5.5.4 Functioning of integrated string monitoring connection panel The string is monitored via current sensors. Fig. 5.24 shows the distribution of the current sensors to the module strings of a DC The inverter has 6 DC inputs (DC1 to DC6), each with 2 DC input.

  • Page 43: Use Of String Fuses

    (= MPP tracker): no string fuses necessary Note that no string fuses are installed in the inverter! Suitable string fuses withs are available as accessories from Delta. These string fuses are integrated into the DC cable. Should you require this, please contact Delta Support by telephone.

  • Page 44: Planning The Installation Of Type 1+2 Ac And Dc Combination Surge Protection Devices

    5 Planning the installation Planning the installation of type 1+2 AC and DC combination surge protection devices Planning the installation of type 1+2 AC and DC combination surge protection devices Related topics “11.7 Installing/replacing DC surge protection devices”, page 115 “11.9 Installing/replacing type 2 combined AC surge protection devices”, page 129 “11.8 Installing/replacing type 1+2 combined AC surge protection...

  • Page 45: Planning The Device Communication And Plant Monitoring

    5 Planning the installation Planning the device communication and plant monitoring 5.7.2 Components of the communication card Planning the device communication and plant monitoring The connections for RS485, the digital inputs, the dry contacts and the external power-off (EPO) are all on the communication card.

  • Page 46: Communication Cable Requirements

    5 Planning the installation Planning the device communication and plant monitoring 5.7.3 Communication cable requirements 5.7.5 Connection of a data logger via RS485 The inverter can be connected to a data logger via RS485, e.g. Shielded and twisted pair cable Cable type for monitoring the PV system or changing the inverter settings.

  • Page 47: Connection Of A Dc1 Data Collector From Delta

    5 Planning the installation Planning the device communication and plant monitoring 5.7.6 Connection of a DC1 data collector from Delta You can use the DC1 data collector for, among other things: ● Commissioning the inverter (see “6. Planning the Commis- sioning”, page 51 and “8.

  • Page 48: Connecting An External Alarm Unit

    A mobile device (smartphone, tablet) with the MyDeltaSolar ● A mobile device (smartphone, tablet) with the MyDeltaSolar ● A Windows PC running the Delta Service Software (DSS) ● A Windows PC running the Delta Service Software (DSS) The MyDeltaSolar app is available for iOS and Android.

  • Page 49: Connecting A Ripple Control Receiver

    5 Planning the installation Planning the device communication and plant monitoring 5.7.9 External power-off 5.7.8 Connecting a ripple control receiver Fig. 5.30: Terminal block with digital inputs Fig. 5.29: Terminal block with digital inputs To disconnect the inverter AC-side from the grid connection point, An external ripple control receiver can be connected to the digital a switching signal can be sent via an external monitoring unit inputs.

  • Page 50: Connecting A Pc

    For changing the inverter Delta Service Software (DSS) settings. To select a suitable USB/RS485 adapter, please contact Delta Customer Service. You can download the DSS at https://solarsolutions.delta-emea. com. Cable requirements Bell wire. Both ends open.

  • Page 51: Planning The Commissioning

    Commissioning options 6.2.1 Delta Service Software (DSS) The Delta Service Software is available for Windows PCs. The PC is connected to the RS485 terminal block of the inverter. You must commission each inverter individually.

  • Page 52: Installation

    7 Installation Safety instructions Installation WARNING Electric shock ► Read chapter “5. Planning the installation”, If the doors of the inverter are open, the IP65 page 29 and this chapter in full before degree of protection is no longer guaranteed. ►...

  • Page 53: Sequence Of Installation And Commissioning Steps

    7 Installation Sequence of installation and commissioning steps Sequence of installation and commis- sioning steps 7.2.1 General information Install optional internal accessories such as AC and DC combination surge arresters type 1+2 in a dry environment and before connecting the inverter.

  • Page 54: Unpacking The Inverter

    7 Installation Unpacking the inverter Unpacking the inverter Fig. 7.1: Unpacking the inverter Installation and Operation Manual M50A_260 RPI503M260000 Product version L and M EU V1.3 EN 2023-08-14...

  • Page 55: Mounting The Inverter

    7 Installation Mounting the inverter Mounting the inverter 7.4.1 Ground mounting (upright) WARNING Heavy weight The inverter is heavy. ► Lift and carry the inverter with at least 2 people. The feet for floor mounting must be ordered separately. 1. Screw the 2 feet for ground mounting onto the underside of the inverter (torque: 24.5 Nm).

  • Page 56: Wall Mounting (Suspended)

    Deviations from this are only possible in exceptional cases approved by Delta Electronics. Always check with Delta Customer Service first if you want to deviate from the work instructions given in this section. 1. Attach the mounting plate to the wall/mounting system with at least 8 M6 screws.
  • Page 57 7 Installation Mounting the inverter 3. Mount the inverter on the mounting plate. 4. Check that the inverter is correctly mounted on the mount- ing plate. 5. Screw the lower left side of the inverter onto the wall or mounting system using the M6 screw, spring washer and washer.

  • Page 58: Grounding The Inverter Housing

    7 Installation Grounding the inverter housing Grounding the inverter housing WARNING High current ► Always observe the local regulations relating to grounding cable requirements. ► To increase the safety of the system, always ground the inverter housing even when this is not required by the local regulations.

  • Page 59: Grounding Via The Pe Screw

    7 Installation Grounding the inverter housing 7.5.2 Grounding via the PE screw Cable lug selection Select the cable lugs according to the following table: PE screw material: nickel-plated Cables Cable lug ● Copper, tin coated Copper ● Pure copper ● Aluminum, tin-coated Aluminum ●...

  • Page 60: Preparing Electrical Installation

    7 Installation Preparing electrical installation Preparing electrical installation There is normally an isolating switch (for example in an equipment wiring box) between the inverter and the grid connection box and between the inverter and the solar modules. This isolates the inverter from all the AC and DC voltage sources and renders it de-energized.
  • Page 61 7 Installation Preparing electrical installation 5. Unscrew and open the lower door lock cover. 6. Open the upper and lower door lock. Installation and Operation Manual M50A_260 RPI503M260000 Product version L and M EU V1.3 EN 2023-08-14...
  • Page 62 7 Installation Preparing electrical installation 7. Open the door and secure it on top with the Allen key. 8. Alternatively, the door can also be unhinged. Installation and Operation Manual M50A_260 RPI503M260000 Product version L and M EU V1.3 EN 2023-08-14...

  • Page 63: Connecting The Communication Card

    7 Installation Connecting the communication card Connecting the communication card Shielded and twisted pair cable Cable type (CAT5 or CAT6) The connections for RS485, the dry contacts, the Cable diameter 2 x 7.2 / 8 / 10 mm digital inputs and the external power-off (EPO) Wire cross section 0.25 ...

  • Page 64: Threading The Communication Cable

    7 Installation Connecting the communication card 7.7.2 Threading the communication cable 1. Unscrew the cable gland of the communication connection and remove the cable gland and seal. 2. Thread all communication cables through the cable gland and seal. 3. Insert the seal and cable gland of the communication con- nection and fasten the cable gland.
  • Page 65 7 Installation Connecting the communication card Installation and Operation Manual M50A_260 RPI503M260000 Product version L and M EU V1.3 EN 2023-08-14...

  • Page 66: Connecting A Data Logger Via Rs485

    7 Installation Connecting the communication card 7.7.3 Connecting a data logger via RS485 Fig. 7.1: DIP switch for the RS485 termination resistor 7.7.3.1 Introduction RS485 connection diagram for a single inverter NOTICE Termination resistor = ON Unwanted currents. In some installation variants, unwanted currents can flow when multiple inverters are connected via RS485.
  • Page 67 Connecting the communication card RS485 connection diagram for multiple inverters If you are using a DC1 data collector from Delta, also refer to the notes in the next section. ► On the last inverter in the RS485 bus, set the DIP switch of the RS485 termination resistor to ON.
  • Page 68 RS485 connection diagram for a DC1 data collector with multiple inverters The DC1 data collector from Delta does not have an integrated RS485 termination resistor. Depending on where the DC1 is located in the RS485 bus, an external RS485 termination resistor may need to be connected, see Fig. 7.4, p. 68.
  • Page 69 7 Installation Connecting the communication card 7.7.3.2 Wiring for a single inverter 1. Connect the DATA+ wire to terminal 5 and the DATA– wire to terminal 6. 2. Set the DIP switch for the RS485 termination resistor (DIP 2) to the ON position. Installation and Operation Manual M50A_260 RPI503M260000 Product version L and M EU V1.3 EN 2023-08-14...
  • Page 70 7 Installation Connecting the communication card 7.7.3.3 Wiring for multiple inverters Data logger 1. On the cable coming from the data logger: Connect the DATA+ wire to terminal 5 and the DATA– wire to terminal On the cable going to the second inverter: Connect the DATA+ wire to terminal 3 and the DATA–...
  • Page 71 7 Installation Connecting the communication card Data logger 3. On the cable coming from the previous inverter: Con- nect the DATA+ wire to terminal 5 and the DATA– wire to terminal 6. On the cable going to the next inverter: Connect the DATA+ wire to terminal 3 and the DATA–...
  • Page 72 7 Installation Connecting the communication card Data logger 5. Connect the DATA+ wire to terminal 5 and the DATA– wire to terminal 6. 6. Set the DIP switch for the RS485 termination resistor to the ON position. Installation and Operation Manual M50A_260 RPI503M260000 Product version L and M EU V1.3 EN 2023-08-14...

  • Page 73: Connecting An External Alarm Unit

    Connection example: Connecting 1 external alarm unit with internal 12 V power supply to the dry con- tacts ► An event can be assigned to the dry contacts with Delta Service Software or the MyDeltaSolar app after commis- sioning. Fig. 7.5:...

  • Page 74: Connecting A Ripple Control Receiver

    1. Connect the wires to the terminals V1 and K0. Power limiting to: Short circuit 2. After commissioning, the relay for the external power-off can be defined with Delta Service Software as a normally Terminals V1 and K1 closed or normally open contact. Terminals V1 and K2...

  • Page 75: Connecting A Pc Via Rs485 (Optional)

    For changing the inverter set- Delta Service Software (DSS) tings. To select a suitable USB/RS485 adapter, please contact Delta Customer Service. You can download the DSS at https://solarsolutions.delta-emea. com. You can use terminal pairs 3+4 or 5+6 to connect the PC.

  • Page 76: Connecting The Grid (Ac)

    7 Installation Connecting the grid (AC) 7.8.2 Handling aluminum conductors during Connecting the grid (AC) installation work ► The special properties of aluminum must be taken into con- ► Always observe the information in section sideration when using aluminum conductors: “5.4 Planning the grid connection (AC)”, Aluminum "flows,"...

  • Page 77: Instructions For The Use Of Sector-Shaped Aluminum Cables

    7 Installation Connecting the grid (AC) 7.8.3 Instructions for the use of sector-shaped aluminum cables When using sector-shaped aluminum cables without Al-Cu compression joints, insert each cable into the clamping point as shown in the picture. Fig. 7.13: Al-Cu compression joint and heat-shrink sleeving for sector-shaped aluminum cables Al se 7.8.4 Special tools required...

  • Page 78: Ac Cable Gland

    7 Installation Connecting the grid (AC) 7.8.5 AC cable gland Fig. 7.15: Use of the parts of the AC cable glands depending on the cable diameter Cable diameter Torque 30,8 to 44,7 mm 13 Nm 2 mm 26,9 to 35,4 mm 15 Nm 2 mm 21,9 to 27,6 mm...
  • Page 79 7 Installation Connecting the grid (AC) 2. Thread the cable through the cable gland and seal. 3. Insert the seal and cable gland for the AC connection and screw the cable gland in place. Installation and Operation Manual M50A_260 RPI503M260000 Product version L and M EU V1.3 EN 2023-08-14...

  • Page 80: Connecting The Solar Modules (Dc)

    7 Installation Connecting the solar modules (DC) Connecting the solar modules (DC) Special tools required Fig. 7.16: Mounting tools for DC connectors (included in deliv- ery) 1. Pull out the cover caps of the DC connections. 2. Insert the metal brackets to support the DC cables. 3.
  • Page 81 7 Installation Connecting the solar modules (DC) 4. The illustration on the left shows how the wiring should look when all DC connections are occupied. Installation and Operation Manual M50A_260 RPI503M260000 Product version L and M EU V1.3 EN 2023-08-14...

  • Page 82: Completing Electrical Installation

    (see “7.7.7 Connecting a PC via RS485 (optional)”, page 75), you must disconnect the PC from the inverter again after commissioning (see “8.2 Commissioning with the Delta Service Software (DSS)”, page 84)! 1. Remove the Allen key from the top of the door.
  • Page 83 7 Installation Completing electrical installation 4. Close the upper door latch and screw on the cover. 5. Insert the Allen key into the upper door lock. Installation and Operation Manual M50A_260 RPI503M260000 Product version L and M EU V1.3 EN 2023-08-14...

  • Page 84: Commissioning

    ► Turn both DC disconnectores to the ON position. Commissioning with the Delta Service Software (DSS) Prerequisites During installation, a Windows PC on which the Delta Service Software is installed was connected to the inverter (see “7.7.7 Connecting a PC via RS485 (optional)”, page 75). Download link https://solarsolutions.delta-emea.com/en/Solar-...

  • Page 85: Commissioning With The Mydeltasolar App

    8 Commissioning Commissioning with the MyDeltaSolar app Commissioning with the MyDeltaSolar 8.3.1 Direct connection between mobile device and inverter Prerequisites During installation, the Wi-Fi module was installed on the inverter (see “11.11 Installing/replacing the Wi-Fi module”, page 139). The MyDeltaSolar app is installed on the mobile device (smart- phone, tablet with iOS or Android).

  • Page 86: Error Events And Troubleshooting

    To read error messages or change parameter of the connections can be restored acciden- settings, you need the Delta Service Software tally. (DSS) or the MyDeltaSolar app. 3. Wait at least 60 seconds for the internal capacitors to discharge.

  • Page 87: Error

    The grid connection of the inverter must be kept away from non-linear loads; if necessary, move it further away. Non-linear load in the grid and in the vicinity of the inverter. If this error occurs repeatedly, contact Delta Customer Service. AC cable is not connected correctly.

  • Page 88: Warnings

    The polarity of the DC string is reversed. Connect the DC strings correctly. The string monitoring circuit is defective. Contact Delta Customer Service. One or more fans are blocked. Clean or replace the fans if necessary. One or more fans are defective.

  • Page 89: Faults

    9 Error events and troubleshooting Faults Faults Fault num- Possible causes Suggestions for resolution The grid waveform is abnormal. Contact Delta Customer Service. F01, F02, Internal error. Contact Delta Customer Service. The ambient temperature is > 60 °C. Check the system environment. F06, The ambient temperature is >...
  • Page 90 9 Error events and troubleshooting Faults Fault num- Possible causes Suggestions for resolution Internal error. Contact Delta Customer Service. Internal error. Contact Delta Customer Service. Internal error. Contact Delta Customer Service. Large grid harmonics. Check the grid waveform. The grid connection of the inverter must be kept away from non-linear loads;...

  • Page 91: Disconnecting The Inverter From The Power Supply Before Working On It

    10 Disconnecting the inverter from the power supply before working on it Safety Instructions Disconnecting the inverter from the WARNING power supply before working on it Electric shock The IP65 protection degree is no longer guaran- teed when the door is open. Before carrying out any work on the inverter, ►...

  • Page 92: Procedure

    10 Disconnecting the inverter from the power supply before working on it Procedure 10.2 Procedure 1. To shut off the inverter at the grid, open the load-break switch between the inverter and the grid connection point. Secure the load-break switch to prevent it from being switched back on.
  • Page 93 10 Disconnecting the inverter from the power supply before working on it Procedure 5. Remove the Allen key from the upper door lock. 6. Unscrew and open the upper door lock cover. 7. Unscrew and open the lower door lock cover. Installation and Operation Manual M50A_260 RPI503M260000 Product version L and M EU V1.3 EN 2023-08-14...
  • Page 94 10 Disconnecting the inverter from the power supply before working on it Procedure 8. Open the upper and lower door lock. 9. Open the door and secure it on top with the Allen key. Installation and Operation Manual M50A_260 RPI503M260000 Product version L and M EU V1.3 EN 2023-08-14...
  • Page 95 10 Disconnecting the inverter from the power supply before working on it Procedure 10. Use a voltmeter to check that there is no more voltage at the AC terminal block. → If you detect voltage, open the AC power external load isolating switch.
  • Page 96 10 Disconnecting the inverter from the power supply before working on it Procedure Installation and Operation Manual M50A_260 RPI503M260000 Product version L and M EU V1.3 EN 2023-08-14...

  • Page 97: Replacing Or Cleaning Components, Installing Accessories

    11 Replacing or cleaning components, installing accessories Replacing or cleaning components, installing accessories Before carrying out any work on the inverter, carry out the work steps described in the chapter “10. Disconnecting the inverter from the power supply before working on it”, page 91! To complete all work on the inverter, carry out the work steps described in the chapter “12.

  • Page 98: Safety Instructions

    11 Replacing or cleaning components, installing accessories Safety Instructions 11.1 Safety Instructions WARNING Heavy weight DANGER The inverter is heavy. ► Lift and carry the inverter with at least 2 Electric shock people. Potentially fatal voltages are present in the inverter during operation.

  • Page 99: General Information

    11 Replacing or cleaning components, installing accessories General information 11.2 General information For the following work, the inverter must be disconnected from the power supply. ● Clean/replace internal fans ● Cleaning/replacing the fan module ● Replacing the DC surge protection devices ●...

  • Page 100: Clean/Replace Internal Fan 1

    11 Replacing or cleaning components, installing accessories Clean/replace internal fan 1 11.3 Clean/replace internal fan 1 DANGER Electric shock Potentially fatal voltages are present in the inverter during operation. When the inverter is disconnected from all power sources, this voltage remains in the inverter for up to 60 seconds.
  • Page 101 11 Replacing or cleaning components, installing accessories Clean/replace internal fan 1 2. Unscrew and pull out the cover. The fan is screwed onto the cover. This work step must only be carried out if the fan is to be replaced. The work step is not necessary for cleaning the fan.
  • Page 102 11 Replacing or cleaning components, installing accessories Clean/replace internal fan 1 4. Clean the fan and metal housing with compressed air or a firm brush. This work step must only be carried out if the fan is to be replaced. The work step is not necessary for cleaning the fan.
  • Page 103 11 Replacing or cleaning components, installing accessories Clean/replace internal fan 1 6. Insert the cover with the fan attached and screw the cover in place. 7. Plug in the power supply cable plug. 8. To complete the work, follow the instructions in the chapter “12.

  • Page 104: Clean/Replace Internal Fan 2

    11 Replacing or cleaning components, installing accessories Clean/replace internal fan 2 11.4 Clean/replace internal fan 2 DANGER Electric shock Potentially fatal voltages are present in the inverter during operation. When the inverter is disconnected from all power sources, this voltage remains in the inverter for up to 60 seconds.
  • Page 105 11 Replacing or cleaning components, installing accessories Clean/replace internal fan 2 2. Pull out the power supply cable plug located on the bottom of the card with the DC surge protection devices. 3. Unscrew and pull out the cover. The fan is screwed onto the cover.
  • Page 106 11 Replacing or cleaning components, installing accessories Clean/replace internal fan 2 This work step must only be carried out if the fan is to be replaced. The work step is not necessary for cleaning the fan. ∫ 4. Unscrew the fan from the cover and pull it out. 5.
  • Page 107 11 Replacing or cleaning components, installing accessories Clean/replace internal fan 2 This work step must only be carried out if the fan is to be replaced. The work step is not necessary for cleaning the fan. ∫ 6. Insert and screw the fan into the cover. Installation and Operation Manual M50A_260 RPI503M260000 Product version L and M EU V1.3 EN 2023-08-14...
  • Page 108 11 Replacing or cleaning components, installing accessories Clean/replace internal fan 2 7. Insert the cover with the fan attached and screw the cover in place. 8. Plug in the power supply cable plug. 9. Insert the cover for the DC surge protection devices. 10.

  • Page 109: Cleaning/Replacing The Fan Module

    11 Replacing or cleaning components, installing accessories Cleaning/replacing the fan module 11.5 Cleaning/replacing the fan module DANGER Electric shock Potentially fatal voltages are present in the inverter during operation. When the inverter is disconnected from all power sources, this voltage remains in the inverter for up to 60 seconds.
  • Page 110 11 Replacing or cleaning components, installing accessories Cleaning/replacing the fan module 2. Pull out the power supply cable plugs. 3. Clean the fan module with a compressed air cleaner or a firm brush. Installation and Operation Manual M50A_260 RPI503M260000 Product version L and M EU V1.3 EN 2023-08-14...
  • Page 111 11 Replacing or cleaning components, installing accessories Cleaning/replacing the fan module 4. Insert the plugs of the power supply cables until they snap into place. It does not matter which power cable you use for which fan. 5. Insert the fan module so that the power cables are on the right side of the fan module.
  • Page 112 11 Replacing or cleaning components, installing accessories Cleaning/replacing the fan module 6. Screw on the fan module. 7. To complete the work, follow the instructions in the chapter “12. Recommissioning the inverter after work”, page 143. Installation and Operation Manual M50A_260 RPI503M260000 Product version L and M EU V1.3 EN 2023-08-14...

  • Page 113: Cleaning The Air Outlets

    11 Replacing or cleaning components, installing accessories Cleaning/replacing the fan module 11.6 Cleaning the air outlets The air outlets can be removed and installed while the inverter is running. The screws are very small and can easily fall down. You should therefore use a magnetic screwdriver.
  • Page 114 11 Replacing or cleaning components, installing accessories Cleaning/replacing the fan module 3. Insert and screw on the air filter. The fins must be facing downward. 4. To complete the work, follow the instructions in the chapter “12. Recommissioning the inverter after work”, page 143. Installation and Operation Manual M50A_260 RPI503M260000 Product version L and M EU V1.3 EN 2023-08-14...

  • Page 115: Installing/Replacing Dc Surge Protection Devices

    11 Replacing or cleaning components, installing accessories Installing/replacing DC surge protection devices 11.7 Installing/replacing DC surge protection devices DANGER Electric shock Potentially fatal voltages are present in the inverter during operation. When the inverter is disconnected from all power sources, this voltage remains in the inverter for up to 60 seconds.
  • Page 116 11 Replacing or cleaning components, installing accessories Installing/replacing DC surge protection devices 2. Pull out the power supply cable of internal fan 2. 3. Pull out the signal cable. Installation and Operation Manual M50A_260 RPI503M260000 Product version L and M EU V1.3 EN 2023-08-14...
  • Page 117 11 Replacing or cleaning components, installing accessories Installing/replacing DC surge protection devices The two mounting screws on the left are only pushed through and can easily fall down! The screws on the DC bus cannot fall out. 4. Loosen all screws and remove the card. Installation and Operation Manual M50A_260 RPI503M260000 Product version L and M EU V1.3 EN 2023-08-14...

  • Page 118: Transfer The Screws For The New Dc Surge Protection Devices

    11 Replacing or cleaning components, installing accessories Installing/replacing DC surge protection devices 11.7.2 Transfer the screws for the new DC surge protection devices 1. Unscrew the 10 screws on the right (for the DC bus) on the old DC surge protection devices. Installation and Operation Manual M50A_260 RPI503M260000 Product version L and M EU V1.3 EN 2023-08-14...
  • Page 119 11 Replacing or cleaning components, installing accessories Installing/replacing DC surge protection devices Do not insert the two mounting screws on the left until the card is already screwed on! 2. Screw the 10 screws on the right (for the DC bus) includ- ing spring washers and washers into the new DC surge protection devices.

  • Page 120: Install Dc Surge Protection Devices

    11 Replacing or cleaning components, installing accessories Installing/replacing DC surge protection devices 11.7.3 Install DC surge protection devices It is best to first screw the card to the DC bus with the screws on the right. Then tighten the two mounting screws on the left. 1.
  • Page 121 11 Replacing or cleaning components, installing accessories Installing/replacing DC surge protection devices 2. Plug in the signal cable. 3. Plug in the power supply cable of internal fan 2. 4. Insert the cover for the DC surge protection devices. 5. To complete the work, follow the instructions in the chapter “12.

  • Page 122: Installing/Replacing Type 1+2 Combined Ac Surge Protection Devices

    11 Replacing or cleaning components, installing accessories Installing/replacing type 1+2 combined AC surge protection devices 11.8 Installing/replacing type 1+2 combined AC surge protection devices Related topics “11.9.2 Removing type 2 AC surge protection devices”, page 129 11.8.1 Notes DANGER Electric shock Potentially fatal voltages are present in the inverter during operation.
  • Page 123 11 Replacing or cleaning components, installing accessories Installing/replacing type 1+2 combined AC surge protection devices 2. Pull out both cables from the top of the card. Installation and Operation Manual M50A_260 RPI503M260000 Product version L and M EU V1.3 EN 2023-08-14...
  • Page 124 11 Replacing or cleaning components, installing accessories Installing/replacing type 1+2 combined AC surge protection devices The two mounting screws on the right are only pushed through and can easily fall down! The screws on the AC bus cannot fall out. 3.

  • Page 125: Transfer Screws For The New Type 1+2 Combined Ac Surge Protection Devices

    11 Replacing or cleaning components, installing accessories Installing/replacing type 1+2 combined AC surge protection devices 11.8.3 Transfer screws for the new type 1+2 combined AC surge protection devices 1. Unscrew the four screws on the left (for the AC bus) on the old AC surge protection devices.

  • Page 126: Install The Type 1+2 Combined Ac Surge Protection Device

    11 Replacing or cleaning components, installing accessories Installing/replacing type 1+2 combined AC surge protection devices 3. Screw on the grounding cable with screw, spring washer and washer (included with the card) and pull it along behind the card. 11.8.4 Install the type 1+2 combined AC Surge protection device Related topics “11.9.2 Removing type 2 AC surge protection devices”, page 129 1.
  • Page 127 11 Replacing or cleaning components, installing accessories Installing/replacing type 1+2 combined AC surge protection devices 2. Plug the two cables into the top of the printed circuit board. 3. Screw the grounding cable to the PE screw. Installation and Operation Manual M50A_260 RPI503M260000 Product version L and M EU V1.3 EN 2023-08-14...
  • Page 128 11 Replacing or cleaning components, installing accessories Installing/replacing type 1+2 combined AC surge protection devices 4. Mount and screw on the cover of the AC surge protection devices. þ Installation of the type 1+2 combined AC surge protection devices is complete. 5.

  • Page 129: Installing/Replacing Type 2 Combined Ac Surge Protection Devices

    11 Replacing or cleaning components, installing accessories Installing/replacing type 2 combined AC surge protection devices 11.9 Installing/replacing type 2 combined AC surge protection devices 11.9.1 Notes DANGER Electric shock Potentially fatal voltages are present in the inverter during operation. When the inverter is disconnected from all power sources, this voltage remains in the inverter for up to 60 seconds.
  • Page 130 11 Replacing or cleaning components, installing accessories Installing/replacing type 2 combined AC surge protection devices 2. Pull out both cables from the top of the card. Installation and Operation Manual M50A_260 RPI503M260000 Product version L and M EU V1.3 EN 2023-08-14...
  • Page 131 11 Replacing or cleaning components, installing accessories Installing/replacing type 2 combined AC surge protection devices The two mounting screws on the right are only pushed through and can easily fall down! The screws on the AC bus cannot fall out. 3.

  • Page 132: Transfer Screws For The New Type 2 Ac Surge Protection Devices

    11 Replacing or cleaning components, installing accessories Installing/replacing type 2 combined AC surge protection devices 11.9.3 Transfer screws for the new type 2 AC surge protection devices 1. Unscrew the four screws on the left (for the AC bus) on the old AC surge protection devices.

  • Page 133: Installing Type 2 Ac Surge Protection Devices

    11 Replacing or cleaning components, installing accessories Installing/replacing type 2 combined AC surge protection devices 11.9.4 Installing type 2 AC surge protection devices Related topics “11.8.4 Install the type 1+2 combined AC Surge protection device”, page 126 1. Install the new card and tighten all screws. Installation and Operation Manual M50A_260 RPI503M260000 Product version L and M EU V1.3 EN 2023-08-14...
  • Page 134 11 Replacing or cleaning components, installing accessories Installing/replacing type 2 combined AC surge protection devices 2. Plug the two cables into the top of the printed circuit board. 3. Mount and screw on the cover of the AC surge protection devices.

  • Page 135: Installing/Replacing The Sub-1G Antenna

    11 Replacing or cleaning components, installing accessories Installing/replacing type 2 combined AC surge protection devices 11.10 Installing/replacing the Sub-1G antenna 11.10.1 Notes The Sub-1G antenna can be installed or replaced during operation. 11.10.2 Removing the Sub-1G antenna 1. Unscrew the mounting frame. 2.

  • Page 136: Installing The Sub-1G Antenna

    11 Replacing or cleaning components, installing accessories Installing/replacing type 2 combined AC surge protection devices 4. Unscrew the Sub-1G antenna. 5. If no new Sub-1G antenna is to be fitted, screw on the cover cap of the Sub-1G connection. 11.10.3 Installing the Sub-1G antenna Keep the cover cap of the Sub-1G connection.
  • Page 137 11 Replacing or cleaning components, installing accessories Installing/replacing type 2 combined AC surge protection devices 2. Mount the Sub-1G antenna and screw it on so that it can still be rotated. 3. Slide the mounting frame over the Sub-1G antenna upside down from below.
  • Page 138 11 Replacing or cleaning components, installing accessories Installing/replacing type 2 combined AC surge protection devices þ Installation of the Sub-1G antenna is complete. Installation and Operation Manual M50A_260 RPI503M260000 Product version L and M EU V1.3 EN 2023-08-14...

  • Page 139: Installing/Replacing The Wi-Fi Module

    11 Replacing or cleaning components, installing accessories Installing/replacing the Wi-Fi module 11.11 Installing/replacing the Wi-Fi module 11.11.1 Notes DANGER Electric shock Potentially fatal voltages are present in the inverter during operation. When the inverter is disconnected from all power sources, this voltage remains in the inverter for up to 60 seconds.
  • Page 140 11 Replacing or cleaning components, installing accessories Installing/replacing the Wi-Fi module 3. Unscrew and remove the Wi-Fi module. 4. If a new Wi-Fi module is not to be fitted, screw on the cable gland including the blind plug. Installation and Operation Manual M50A_260 RPI503M260000 Product version L and M EU V1.3 EN 2023-08-14...

  • Page 141: Installing The Wi-Fi Module

    11 Replacing or cleaning components, installing accessories Installing/replacing the Wi-Fi module 11.11.3 Installing the Wi-Fi module 1. Mount and screw on the Wi-Fi module. 2. Pull the cable through the seal and cable gland and tighten the cable gland. Installation and Operation Manual M50A_260 RPI503M260000 Product version L and M EU V1.3 EN 2023-08-14...
  • Page 142 11 Replacing or cleaning components, installing accessories Installing/replacing the Wi-Fi module 3. Route the cable through the inverter as illustrated and connect it to the RS485 terminal block of the communica- tion card. Black Yellow D+ (DATA+) Blue D– (DATA–) þ...

  • Page 143: Recommissioning The Inverter After Work

    12 Recommissioning the inverter after work Safety Instructions Recommissioning the inverter after WARNING work Electric shock The IP65 protection degree is no longer guaran- teed when the door is open. Before carrying out any work on the inverter, ► Only open the door when absolutely carry out the work steps described in the chapter necessary.

  • Page 144: Procedure

    12 Recommissioning the inverter after work Procedure 12.2 Procedure 1. Plug in and tighten the conductors of the AC cable. 2. Tighten the AC cable gland. 3. Remove the Allen key from the top of the door. 4. Close the door. Installation and Operation Manual M50A_260 RPI503M260000 Product version L and M EU V1.3 EN 2023-08-14...
  • Page 145 12 Recommissioning the inverter after work Procedure 5. Close the upper door lock and screw on the cover. 6. Close the lower door lock and screw on the cover. Installation and Operation Manual M50A_260 RPI503M260000 Product version L and M EU V1.3 EN 2023-08-14...
  • Page 146 12 Recommissioning the inverter after work Procedure 7. Insert the Allen key into the upper door lock. 8. Plug in the DC cables. 9. Close the isolating switch between the inverter and the grid connection point or inverter and the solar modules. 10.

  • Page 147: Replacing The Inverter

    It is best to wait before removing the old inverter tally. until you have received the replacement device from Delta Electronics. 3. Wait at least 60 seconds for the internal capacitors to discharge. There is normally an isolating switch (for example...

  • Page 148: Special Notes On Replacement

    If you are continuing to use the components of the old inverter, attach the appropriate parts of the replacement device to the old inverter before returning it to Delta Electronics. This is also necessary to ensure that all openings of the inverter are properly closed and that no moisture can enter during transportation.

  • Page 149: Sequence Of Work Steps

    13 Replacing the inverter 13.2 Sequence of work steps Step Notice Description in chapter “13.4 Disconnecting the inverter from the grid (AC) Disconnect the inverter from AC and DC and solar modules (DC)”, page 150 Remove the communication cable “13.5 Remove the communication cable”, page 155 Dismantling the type 1+2 combined AC “13.6 Dismantling the type 1+2 combined AC surge Only necessary if installed.

  • Page 150: Disconnecting The Inverter From The Grid (Ac) And Solar Modules (Dc)

    13 Replacing the inverter 13.4 Disconnecting the inverter from the grid (AC) and solar modules (DC) 1. To shut off the inverter at the grid, open the load-break switch between the inverter and the grid connection point. Secure the load-break switch to prevent it from being switched back on.
  • Page 151 13 Replacing the inverter 5. Remove the Allen key from the upper door lock. 6. Unscrew and open the upper door lock cover. 7. Unscrew and open the lower door lock cover. Installation and Operation Manual M50A_260 RPI503M260000 Product version L and M EU V1.3 EN 2023-08-14...
  • Page 152 13 Replacing the inverter 8. Open the upper and lower door lock. 9. Open the door and secure it on top with the Allen key. Installation and Operation Manual M50A_260 RPI503M260000 Product version L and M EU V1.3 EN 2023-08-14...
  • Page 153 13 Replacing the inverter 10. Use a voltmeter to check that there is no more voltage at the AC terminal block. → If you detect voltage, open the AC power external load isolating switch. → If you detect no voltage, continue to the next step. 11.
  • Page 154 13 Replacing the inverter Installation and Operation Manual M50A_260 RPI503M260000 Product version L and M EU V1.3 EN 2023-08-14...

  • Page 155: Remove The Communication Cable

    13 Replacing the inverter 13.5 Remove the communication cable 1. Remove all cables from the communication card. 2. Unscrew the cable gland of the communication connection and remove the cable, cable gland and seal. Installation and Operation Manual M50A_260 RPI503M260000 Product version L and M EU V1.3 EN 2023-08-14...

  • Page 156: Dismantling The Type 1+2 Combined Ac Surge Protection Device (Optional)

    13 Replacing the inverter Dismantling the type 1+2 combined AC surge protection device (optional) 13.6 Dismantling the type 1+2 combined AC 13.7 Dismantling the type 1+2 combined DC surge protection device (optional) surge protection device (optional) If you have installed the type 1+2 combined AC If you have installed the type 1+2 combined DC surge protection devices, you must remove them surge protection devices, you must remove them...

  • Page 157: Dismantling The Sub-1G Antenna (Optional)

    13 Replacing the inverter Dismantling the Sub-1G antenna (optional) 13.8.1 Dismantling the Wi-Fi module (optional) 13.8 Dismantling the Sub-1G antenna (op- tional) If you have installed the Wi-Fi module, you must remove it (see “11.11.2 Removing the Wi-Fi mod- ule”, page 139) before returning the inverter. See “11.10.2 Removing the Sub-1G antenna”, page 135 for a description.

  • Page 158: Removing And Packing The Inverter

    13 Replacing the inverter Removing and packing the inverter 13.9 Removing and packing the inverter WARNING Heavy weight The inverter is heavy. ► Lift and carry the inverter with at least 2 people. 1. Unscrew the grounding cable on the inverter. 2.
  • Page 159 4. Place all components of the replacement device that will not be needed back into the box. 5. Package and ship the old inverter in accordance with the description received from Delta Customer Service. 6. Install and commission the new inverter in accordance with the installation instructions supplied.

  • Page 160: Technical Data

    14 Technical Data Technical Data Input (DC) M50A 11.7 kW / 58,0 kW Maximum input power (per MPP Tracker/total) 50 kW Rated power 200 to 1000 V Input voltage range for operation 1100 V Maximum input voltage 600 V Nominal voltage number of MPP trackers 200 to 1000 V MPP input voltage range total...
  • Page 161 RS485, Sub-1G, Wi-Fi (optional) Communication Modbus RTU Communication protocols General specifications M50A M50A_260 Delta model name RPI503M260000 Delta part number -25 to +60 °C Overall operating temperature range -25 to +50 °C Operating temperature range with nominal power (50 kW)
  • Page 162 Other European countries +49 7641 455 549 © Copyright – Delta Electronics (Netherlands) B.V. – All rights reserved. All information and specifications can be modified without prior notice. Installation and Operation Manual M50A_260 RPI503M260000 Product version L and M EU V1.3 EN 2023-08-14...

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