Huawei MERC-600W-PA0 User Manual
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Huawei MERC-600W-PA0 User Manual

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MERC-600W-PA0
User Manual
Issue
02
Date
2024-07-15
HUAWEI DIGITAL POWER TECHNOLOGIES CO., LTD.

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Summary of Contents for Huawei MERC-600W-PA0

  • Page 1 MERC-600W-PA0 User Manual Issue Date 2024-07-15 HUAWEI DIGITAL POWER TECHNOLOGIES CO., LTD.
  • Page 2 Notice The purchased products, services and features are stipulated by the contract made between Huawei Digital Power Technologies Co., Ltd. and the customer. All or part of the products, services and features described in this document may not be within the purchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information, and recommendations in this document are provided "AS IS"...

  • Page 3: About This Document

    Indicates a hazard with a medium level of risk which, if not avoided, could result in death or serious injury. Indicates a hazard with a low level of risk which, if not avoided, could result in minor or moderate injury. Issue 02 (2024-07-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
  • Page 4 Added the optimizer operation description in 4 System Maintenance. Updated the conditions for triggering rapid shutdown in 4.2 Rapid Shutdown. Updated the alarm list in 4.4 Alarm List. Added 4.7 PV Module-Level Diagnosis. Issue 02 (2024-07-15) Copyright © Huawei Digital Power Technologies Co., Ltd.

  • Page 5: Table Of Contents

    4.5.3 Scenario 3: Replacing an Optimizer (on the FusionSolar SmartPVMS)............40 4.6 Troubleshooting Suggestions Against Inefficient PV Modules................41 4.7 PV Module-Level Diagnosis............................... 43 5 Technical Specifications....................... 44 5.1 MERC-600W-PA0 Technical Specifications........................44 Issue 02 (2024-07-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
  • Page 6 6.1 How Do I Identify a Faulty Optimizer by Measuring the Voltage?..............46 6.2 How Do I Delete an Optimizer and Update the Physical Layout (on the FusionSolar SmartPVMS)?..47 6.3 How Do I Obtain Contact Information?........................48 A Acronyms and Abbreviations..................... 50 Issue 02 (2024-07-15) Copyright © Huawei Digital Power Technologies Co., Ltd.

  • Page 7: Safety Information

    ● The equipment is operated beyond the conditions specified in this document. Issue 02 (2024-07-15) Copyright © Huawei Digital Power Technologies Co., Ltd.

  • Page 8: Personal Safety

    D ANGER During operations, use dedicated insulated tools to prevent electric shocks or short circuits. The dielectric withstanding voltage level must comply with local laws, regulations, standards, and specifications. Issue 02 (2024-07-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
  • Page 9 – Trained personnel: personnel who are trained in technology and safety, have required experience, are aware of possible hazards on themselves in Issue 02 (2024-07-15) Copyright © Huawei Digital Power Technologies Co., Ltd.

  • Page 10: Electrical Safety

    Observe the power plant safety regulations, such as the operation and work ticket mechanisms. ● Install temporary fences or warning ropes and hang "No Entry" signs around the operation area to keep unauthorized personnel away from the area. Issue 02 (2024-07-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
  • Page 11 Do not cut the optimizer cables, as this will void the warranty. ● The output wiring terminals of the optimizer are not hot-swappable. If the terminals are hot-swapped, the optimizer may be damaged. Issue 02 (2024-07-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
  • Page 12 NO TICE The static electricity generated by human bodies may damage the electrostatic- sensitive components on boards, for example, the large-scale integrated (LSI) circuits. Issue 02 (2024-07-15) Copyright © Huawei Digital Power Technologies Co., Ltd.

  • Page 13: Environment Requirements

    Do not place the equipment near heat sources or fire sources, such as smoke, candles, heaters, or other heating devices. Overheat may damage the equipment or cause a fire. Issue 02 (2024-07-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
  • Page 14 ● Do not install the equipment outdoors in salt-affected areas because it may be corroded. A salt-affected area refers to the region within 500 m of the Issue 02 (2024-07-15) Copyright © Huawei Digital Power Technologies Co., Ltd.

  • Page 15: Mechanical Safety

    ● When performing operations over the top of the equipment, take measures to protect the equipment against damage. ● Use correct tools and operate them in the correct way. Issue 02 (2024-07-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
  • Page 16 Only trained and qualified personnel are allowed to work at heights. ● Do not work at heights when steel pipes are wet or other risky situations exist. After the preceding conditions no longer exist, the safety owner and Issue 02 (2024-07-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
  • Page 17 Ensure that the ladder is securely positioned and held firm. ● When climbing up the ladder, keep your body stable and your center of gravity between the side rails, and do not overreach to the sides. Issue 02 (2024-07-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
  • Page 18 To avoid short circuits or other risks, do not drill holes into buried pipes or cables. ● When drilling holes, protect the equipment from shavings. After drilling, clean up any shavings. Issue 02 (2024-07-15) Copyright © Huawei Digital Power Technologies Co., Ltd.

  • Page 19: Product Overview

    2 Product Overview Product Overview 2.1 Model Number Description This document involves the following product model: ● MERC-600W-PA0 Figure 2-1 Model number (using the MERC-600W-PA0 optimizer as an example) (1) Product series (2) Rated input power: (3) PV optimizer name 600 W...

  • Page 20: Overview

    When optimizers are configured for all PV modules, the MPPT function, module- level shutdown and monitoring, and long-string design are supported. Figure 2-2 Application scenario (optimizers configured for all PV modules) Issue 02 (2024-07-15) Copyright © Huawei Digital Power Technologies Co., Ltd.

  • Page 21: Structure

    MERC-600W-PA0 User Manual 2 Product Overview 2.3 Structure Optimizer Dimensions Figure 2-3 MERC-600W-PA0 dimensions Issue 02 (2024-07-15) Copyright © Huawei Digital Power Technologies Co., Ltd.

  • Page 22: Configuration Principles

    The configuration principles for different inverter models are as follows: NO TICE ● If MERC-600W-PA0 optimizers are configured in the system, each PV module must connect to an optimizer. ● The system configured with MERC-600W-PA0 optimizers does not support thin- film PV modules.
  • Page 23 "√" indicates mixed use supported. "×" indicates mixed use not supported. Table 2-2 Optimizer compatibility Optimizer Compatibility MERC-600W-PA0 SUN2000P-375W × SUN2000-450W-P × SUN2000-450W-P2 × SUN2000-600W-P × MERC-600W-PA0 √ MERC-1100W-P × Issue 02 (2024-07-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
  • Page 24 MERC-600W-PA0 User Manual 2 Product Overview Optimizer Compatibility MERC-600W-PA0 MERC-1300W-P × Issue 02 (2024-07-15) Copyright © Huawei Digital Power Technologies Co., Ltd.

  • Page 25: Installation And Commissioning

    User Manual 3 Installation and Commissioning Installation and Commissioning This section describes how to install the MERC-600W-PA0. NO TICE Before the equipment is put into operation for the first time, ensure that the parameters are set correctly by professional personnel. Incorrect parameter settings may result in noncompliance with local grid connection requirements and affect the normal operations of the equipment.

  • Page 26: Installation Requirements

    3.2 Installation Requirements ● Clearance requirements You are advised to reserve appropriate clearances around the optimizer for installation and heat dissipation. Issue 02 (2024-07-15) Copyright © Huawei Digital Power Technologies Co., Ltd.

  • Page 27: Installing The Device

    ● Method 1: Install the optimizer to the extruded aluminum profile using a T- shaped bolt. NO TE The T-shaped bolt and nut should be purchased from the Company. Issue 02 (2024-07-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
  • Page 28 PV module frame. Figure 3-4 Installing the optimizer to the PV module frame with a bolt assembly Issue 02 (2024-07-15) Copyright © Huawei Digital Power Technologies Co., Ltd.

  • Page 29: Connecting Cables

    1 V (±5%), and the voltage value (±5%) of the PV string shall be equal to the number of optimizers in the string. If the probes are reversely connected, the voltages measured are negative values. Issue 02 (2024-07-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
  • Page 30 The PV string voltage is The positive and Correctly prepare a negative value. negative terminals of the positive and negative PV string cables are terminals of the PV incorrect. string cables. Issue 02 (2024-07-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
  • Page 31 ● To reduce the impact of electromagnetic interference, it is recommended that the distance between the positive and negative cables of optimizers be minimized, as shown in the following figure for either a single string installation or a multi-string installation. Issue 02 (2024-07-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
  • Page 32 MERC-600W-PA0 User Manual 3 Installation and Commissioning Figure 3-7 Required cabling Issue 02 (2024-07-15) Copyright © Huawei Digital Power Technologies Co., Ltd.

  • Page 33: Physical Layout

    The physical layout must be configured for optimizers. When an optimizer is faulty, it can be quickly located and replaced based on the physical layout. Physical layouts of the MERC-600W-PA0 Smart PV Optimizers can be created in three ways. For details, see FusionSolar Physical Layout User Guide.
  • Page 34 The optimizer is offline. Check whether the SN and location information is correct and search for the device again. The optimizer is faulty. Yellow The optimizer is disconnected. ----End Issue 02 (2024-07-15) Copyright © Huawei Digital Power Technologies Co., Ltd.

  • Page 35: System Maintenance

    After the change, perform optimizer search again and update the physical layout. Otherwise, the networking may be incomplete, optimizer faults cannot be located, and the system may fail. Issue 02 (2024-07-15) Copyright © Huawei Digital Power Technologies Co., Ltd.

  • Page 36: Disconnection Detection

    Step 1 Log in to the FusionSolar app and tap the plant name on the Home screen to access the plant screen. Step 2 Choose Layout, tap Disconnection detection to check optimizer disconnection, and rectify the fault based on the result. Issue 02 (2024-07-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
  • Page 37 Method 2: Disconnection Detection on the WebUI of the FusionSolar SmartPVMS Step 1 Log in to https://intl.fusionsolar.huawei.com to access the WebUI of the FusionSolar SmartPVMS. Step 2 On the Home page, click the plant name to go to the plant page. Choose Layout, tap Disconnection detection to check optimizer disconnection, and rectify the fault based on the result.

  • Page 38: Rapid Shutdown

    Method 3: Connect a switch to the DI and GND ports of the inverter to form a circuit. (For details about which DI port is used, see the corresponding inverter user manual.) Turn off the switch to trigger a rapid shutdown. Issue 02 (2024-07-15) Copyright © Huawei Digital Power Technologies Co., Ltd.

  • Page 39: O&M For Pv Modules

    PV modules are darker than those of the other PV modules in the layout, PV modules with darker colors may be inefficient PV modules if the module surfaces are clean and there is no shading. Issue 02 (2024-07-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
  • Page 40 40%–60% 60%–80% 80%–100% Default color The rated power of the optimizer cannot be reported or obtained. As a result, the calculation fails. ----End Issue 02 (2024-07-15) Copyright © Huawei Digital Power Technologies Co., Ltd.

  • Page 41: Alarm List

    3. Check whether the PV string is correctly connected to the inverter or whether there is a breakpoint in the PV string. 4. If the fault persists, contact the installation contractor. Issue 02 (2024-07-15) Copyright © Huawei Digital Power Technologies Co., Ltd.

  • Page 42: Replacing And Adding An Optimizer

    Step 5 Install a new optimizer. Secure the new optimizer to the corresponding bolt and tighten the bolt. Connect the cables to the new optimizer based on the recorded information. Issue 02 (2024-07-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
  • Page 43 N optimizers need to be replaced, perform the preceding procedure for N times. ● If ● After the optimizer is replaced, the new optimizer automatically inherits the energy yield, physical layout, and logical layout of the faulty optimizer. Issue 02 (2024-07-15) Copyright © Huawei Digital Power Technologies Co., Ltd.

  • Page 44: Scenario 2: Replacing An Optimizer (On The Local Device Commissioning Screen)

    If multiple optimizers need to be replaced, record the mapping information. Step 6 Power on the inverter. On the device commissioning screen, choose Maintenance > Subdevice management, and tap Auto search to add the new optimizer. Issue 02 (2024-07-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
  • Page 45 Step 7 On the device commissioning screen, choose Maintenance > Optimizer layout, select the corresponding PV module, and bind the new optimizer according to the recorded mapping information. Tap Submit. ----End Issue 02 (2024-07-15) Copyright © Huawei Digital Power Technologies Co., Ltd.

  • Page 46: Scenario 3: Replacing An Optimizer (On The Fusionsolar Smartpvms)

    Replace Device in the upper right corner, and enter the SN of the new optimizer as prompted to complete optimizer replacement. ----End Issue 02 (2024-07-15) Copyright © Huawei Digital Power Technologies Co., Ltd.

  • Page 47: Troubleshooting Suggestions Against Inefficient Pv Modules

    If the inverter supports PID recovery, access the Monitoring page of the FusionSolar SmartPVMS, click Inverter in the left pane, click Configuration, and select Repair for PID operation mode. Issue 02 (2024-07-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
  • Page 48 PV module vendor or manufacturer to replace the PV module with a new one of the same model. If the exception persists, contact your PV module vendor or manufacturer. Issue 02 (2024-07-15) Copyright © Huawei Digital Power Technologies Co., Ltd.

  • Page 49: Pv Module-Level Diagnosis

    For details, see FusionSolar Physical Layout User Guide. ● Identify faulty PV modules on the FusionSolar SmartPVMS. ● View the PV module diagnosis report on the FusionSolar app. Issue 02 (2024-07-15) Copyright © Huawei Digital Power Technologies Co., Ltd.

  • Page 50: Technical Specifications

    Rated PV module 600 W power Maximum PV 630 W module power Maximum input 80 V voltage MPPT voltage 10–80 V range Maximum short- 16 A circuit current Overvoltage category Issue 02 (2024-07-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
  • Page 51 Storage –40°C to +70°C temperature Operating humidity 0–100% RH Maximum 4000 m operating altitude IP rating IP68 Installation mode ● PV module support installation ● PV module frame installation Issue 02 (2024-07-15) Copyright © Huawei Digital Power Technologies Co., Ltd.

  • Page 52: Faq

    Figure 6-1 Measuring the voltage of an optimizer Issue 02 (2024-07-15) Copyright © Huawei Digital Power Technologies Co., Ltd.

  • Page 53: How Do I Delete An Optimizer And Update The Physical Layout (On The Fusionsolar Smartpvms)

    Step 1 Power on the inverter. On the Monitoring page of the FusionSolar SmartPVMS, click Optimizer in the left pane, select the optimizer to be replaced, click Delete in the upper right corner, and delete the old optimizer as prompted. Issue 02 (2024-07-15) Copyright © Huawei Digital Power Technologies Co., Ltd.

  • Page 54: How Do I Obtain Contact Information

    If you have any questions about this product, please contact us. https://digitalpower.huawei.com Path: About Us > Contact Us > Service Hotlines To ensure faster and better services, we kindly request your assistance in providing the following information: Issue 02 (2024-07-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
  • Page 55 Alarm ID or name ● Brief description of the fault symptom NO TE EU Representative Information: Huawei Technologies Hungary Kft. Add.: HU-1133 Budapest, Váci út 116-118., 1. Building, 6. floor. Email: hungary.reception@huawei.com Issue 02 (2024-07-15) Copyright © Huawei Digital Power Technologies Co., Ltd.

  • Page 56: A Acronyms And Abbreviations

    User Manual A Acronyms and Abbreviations Acronyms and Abbreviations application ASIC application-specific integrated circuit direct current electromagnetic compatibility electrostatic discharge ground identifier large-scale integration MPPT maximum power point tracking photovoltaic Issue 02 (2024-07-15) Copyright © Huawei Digital Power Technologies Co., Ltd.
  • Page 57 MERC-600W-PA0 User Manual A Acronyms and Abbreviations serial number WLAN wireless local area network Issue 02 (2024-07-15) Copyright © Huawei Digital Power Technologies Co., Ltd.

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