Huawei MERC-1300W-P User Manual
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Huawei MERC-1300W-P User Manual

Merc smart pv optimizer
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MERC Smart PV Optimizer
User Manual
Issue
02
Date
2022-09-20
HUAWEI DIGITAL POWER TECHNOLOGIES CO., LTD.

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Summary of Contents for Huawei MERC-1300W-P

  • Page 1 MERC Smart PV Optimizer User Manual Issue Date 2022-09-20 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 potential hazard which, if not avoided, could result in equipment damage, data loss, performance deterioration, or unanticipated results. NOTICE is used to address practices not related to personal injury. Issue 02 (2022-09-20) Copyright © Huawei Digital Power Technologies Co., Ltd.
  • Page 4 Issue 02 (2022-09-20) ● Updated 2.3 Configuration Principles. ● Updated Troubleshooting. ● Updated 4 Technical Specifications. Issue 01 (2022-08-30) This issue is the first official release. Issue 02 (2022-09-20) Copyright © Huawei Digital Power Technologies Co., Ltd.

  • Page 5: Table Of Contents

    3.2 Detecting Optimizer Disconnection..........................11 3.3 Rapid Shutdown..................................12 3.4 Troubleshooting..................................12 3.5 Replacing an Optimizer..............................14 3.6 Maintaining PV Modules..............................16 4 Technical Specifications....................... 18 A Acronyms and Abbreviations..................... 20 Issue 02 (2022-09-20) Copyright © Huawei Digital Power Technologies Co., Ltd.

  • Page 6: Safety Precautions

    ● Install the product in strict accordance with the quick guide. Declaration Huawei will not be liable for any consequences in any of the following circumstances: Issue 02 (2022-09-20) Copyright © Huawei Digital Power Technologies Co., Ltd.
  • Page 7 Reserve appropriate clearances around the optimizer for installation and heat dissipation. Electrical Connections D ANGER Before connecting cables, ensure that the optimizer is not damaged. Otherwise, electric shocks or fire may occur. Issue 02 (2022-09-20) Copyright © Huawei Digital Power Technologies Co., Ltd.
  • Page 8 The optimizer can be powered on only after all faults are rectified. Otherwise, faults may escalate or equipment may be damaged. ● Observe ESD precautions and wear ESD gloves during maintenance. Issue 02 (2022-09-20) Copyright © Huawei Digital Power Technologies Co., Ltd.

  • Page 9: Product Introduction

    PV string can contain more PV modules than conventional PV strings. Model This document involves the following product models: ● MERC-1300W-P ● MERC-1100W-P Figure 2-1 Model description (MERC-1300W-P optimizer is used as an example) Issue 02 (2022-09-20) Copyright © Huawei Digital Power Technologies Co., Ltd.

  • Page 10: Structure

    (Long input power m (positive) cables) 2.2 Structure Optimizer Ports Figure 2-2 Ports (1) Output port (positive) (2) Output port (negative) (3) Input port (negative) (4) Input port (positive) Issue 02 (2022-09-20) Copyright © Huawei Digital Power Technologies Co., Ltd.

  • Page 11: Configuration Principles

    ● Partial configuration is not allowed. All PV modules must be connected to optimizers (one optimizer per two modules). Otherwise, serious consequences may occur, and the resulting device damage is not covered by the warranty. Issue 02 (2022-09-20) Copyright © Huawei Digital Power Technologies Co., Ltd.

  • Page 12: Application Scenarios

    ● The SUN2000-(600W-P, 450W-P2) cannot be used together with the MERC-(1300W, 1100W)-P. Full configuration: All PV modules are connected to optimizers. In this scenario, the MPPT function, module-level shutdown and monitoring, and long-string design are supported. Issue 02 (2022-09-20) Copyright © Huawei Digital Power Technologies Co., Ltd.
  • Page 13 MERC Smart PV Optimizer User Manual 2 Product Introduction Figure 2-4 Full configuration (vertically mounted) NO TE The figure shows only the output (OUT) cables. Figure 2-5 Full configuration (horizontally mounted) Issue 02 (2022-09-20) Copyright © Huawei Digital Power Technologies Co., Ltd.

  • Page 14: System Maintenance

    . You can scan the QR code to download the quick guide. Setting on the FusionSolar WebUI Log in to https://intl.fusionsolar.huawei.com to access the WebUI of the FusionSolar Smart PV Management System. On the Home page, click the plant name to access the plant page. Choose Layout > Edit > Manage Drawings >...
  • Page 15 , and upload the physical layout template photo as prompted. After the upload is complete, tap Confirm > Layout Generation > Confirm to save the result. If some optimizers' QR codes cannot be identified, manually bind the optimizer SNs on the WebUI Issue 02 (2022-09-20) Copyright © Huawei Digital Power Technologies Co., Ltd.

  • Page 16: Detecting Optimizer Disconnection

    Log in to the FusionSolar app and tap the plant name on the Home screen to access the plant screen. Choose Layout, tap Disconnection detection to check optimizer disconnection, and rectify the fault based on the result. Issue 02 (2022-09-20) Copyright © Huawei Digital Power Technologies Co., Ltd.

  • Page 17: Rapid Shutdown

    Table 3-1 Common alarms and troubleshooting measures Alarm Name Cause Suggestions Input Optimizer input Check whether the open-circuit voltage of overvoltage overvoltage the PV module exceeds the maximum input occurred. voltage of the optimizer. Issue 02 (2022-09-20) Copyright © Huawei Digital Power Technologies Co., Ltd.
  • Page 18 Output Optimizer 1. Check whether PV modules are shaded backfeed output backfeed when PV strings are connected in occurred. parallel. 2. If the fault persists, contact your installer. Issue 02 (2022-09-20) Copyright © Huawei Digital Power Technologies Co., Ltd.

  • Page 19: Replacing An Optimizer

    If the fault persists after all suggested measures listed above are completed, contact your installer. 3.5 Replacing an Optimizer Prerequisites ● Use dedicated insulation tools, and wear insulation shoes and protective gloves before performing operations. Issue 02 (2022-09-20) Copyright © Huawei Digital Power Technologies Co., Ltd.
  • Page 20 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 (2022-09-20) Copyright © Huawei Digital Power Technologies Co., Ltd.

  • Page 21: Maintaining Pv Modules

    3 System Maintenance ----End Follow-up Procedure Pack the faulty component and return it to the local Huawei warehouse. 3.6 Maintaining PV Modules Log in to the FusionSolar app and tap the plant name on the Home screen to access the plant screen. Select Layout and quickly identify inefficient PV modules by color in the physical or logical layout.
  • Page 22 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. Issue 02 (2022-09-20) Copyright © Huawei Digital Power Technologies Co., Ltd.

  • Page 23: Technical Specifications

    Technical Specifications MERC-1300W-P MERC-1100W-P Rated output power 1300 W 1100 W Output voltage 2-80 V Maximum output current 22 A Output bypass Safe output voltage Typical value: 1 V Issue 02 (2022-09-20) Copyright © Huawei Digital Power Technologies Co., Ltd.
  • Page 24 Note a: When the operating temperature of the optimizer ranges from 70℃ to 85℃, the optimizer may shut down for overtemperature protection and report an overtemperature alarm. After the operating temperature decreases, the optimizer automatically recovers with no risk of damage. Issue 02 (2022-09-20) Copyright © Huawei Digital Power Technologies Co., Ltd.

  • Page 25: A Acronyms And Abbreviations

    User Manual A Acronyms and Abbreviations Acronyms and Abbreviations direct current electrical fast transient electromagnetic interference electromagnetic susceptibility electrostatic discharge MPPT maximum power point tracking radiated emission radiated susceptibility Issue 02 (2022-09-20) Copyright © Huawei Digital Power Technologies Co., Ltd.

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