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Darfon MIG300 Installation Manual

Micro inverter
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INSTALLATION MANUAL
MIG300 MICRO INVERTER

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Summary of Contents for Darfon MIG300

  • Page 1 INSTALLATION MANUAL MIG300 MICRO INVERTER...

  • Page 2: Table Of Contents

    MIG300 Micro Inverter ........

  • Page 3: Important Safety Instructions

    Only qualified electrical personnel should perform the electrical installation and wiring of this product. • Be aware that even without an external voltage source connected, the MIG300 micro inverter may contain high voltages and there is a risk of electrical shock.

  • Page 4: Lightning Surge Suppression

    Often, a strike nearby will induce voltage spikes in the electrical grid that can damage equipment. Darfon’s micro inverters have integral surge protection; however, if the surge has sufficient energy, the built-in protection in the device would be exceeded and the device could potentially be damaged.

  • Page 5: Pre-Installation

    I N S T A L L A T I O N M A N U A L PRE-INSTALLATION Thank you for choosing Darfon’s MIG300 micro inverter as a key component to your solar power system. Review and follow the instructions in this section before installing Darfon MIG300 micro inverters.

  • Page 6: Compatibility And Capacity

    M I G 3 0 0 M I C R O I N V E R T E R Compatibility and Capacity Darfon MIG300 micro inverters are electrically compatible with PV modules that have a voltage range of 24V to 40V and a maximum wattage of 300W. Please refer to the ‘Compatible PV Module Calculator’ on Darfon website at www.darfonsolar.com to verify the PV module is electrically compatible.

  • Page 7: Grounding Options

    Conductor (EGC) is required to connect or bond non-current carrying metal equipment together. The EGC grounding process is completed via the grounding connection of MIG300 4-wire AC cable to the AC trunk cable. The PV module will still need to be grounded according to the module manufacturer’s instructions.

  • Page 8: Installing The Micro Inverter

    M I G 3 0 0 M I C R O I N V E R T E R INSTALLING THE MICRO INVERTER The following sections list steps on how to install the Darfon MIG300 micro inverter onto standard PV racking.
  • Page 9 WARNING Do not remove the shipping/dust-protection cap until the MIG300 is ready to be installed to the trunk cable. 6.2 Repeat for all micro inverters in the AC branch circuit. 6.3 For any unused connectors on the AC trunk cable, replace the temporary shipping cap with a Sealing Cap.
  • Page 10 I N S T A L L A T I O N M A N U A L M I G 3 0 0 M I C R O I N V E R T E R Step 7: Terminate the Unused End of the AC Trunk Cable 7.1 Strip 10mm (about 0.5in) of the outer sheath from the end of the AC trunk cable.

  • Page 11: Post-Installation

    When a Ground fault occurs, the GFDI will trigger the LED light to flash in alternating colors of Orange and Red, and the MIG300 will automatically disconnect the all conductors to prevent as a safety precaution.
  • Page 12 I N S T A L L A T I O N M A N U A L M I G 3 0 0 M I C R O I N V E R T E R Step 3: Using a multi meter, verify that the DC conductors between the PV module and the micro inverter do not have any current.

  • Page 13: Monitoring System

    M I G 3 0 0 M I C R O I N V E R T E R I N S T A L L A T I O N M A N U A L MONITORING SYSTEM At this stage, the majority of the PV system is already installed: the PV modules and micro inverters. The following section list steps on how to install the monitoring system.

  • Page 14: Data Logger Overview

    I N S T A L L A T I O N M A N U A L M I G 3 0 0 M I C R O I N V E R T E R Data Logger Overview Isometric View Power LED Display Screen...

  • Page 15: Installing The Plc Box And Data Logger

    Place the data logger near the router, then make a direct Ethernet connection. If the data logger cannot be placed near the router, then the installer can add either a wireless access port or a powerline communication port (not supplied by Darfon). Note: To mount the data logger, use the included wall-mount frame.

  • Page 16: Registering The Pv System

    - Data logger serial number - Installation Map with micro inverter location and serial numbers Step 2: Installer Registration. (If you are already registered on the Darfon Solar Portal, go to step 4. ) In your web browser, go to http://portal.darfonsolar.com/register/...
  • Page 17 M I G 3 0 0 M I C R O I N V E R T E R I N S T A L L A T I O N M A N U A L Step 4: Log into the Darfon Solar Portal. Go to http://portal.darfonsolar.com. Enter your email and password, then click the Login button.
  • Page 18 I N S T A L L A T I O N M A N U A L M I G 3 0 0 M I C R O I N V E R T E R Step 7: Create an Array. 7.1 Enter the number of rows and columns in the array.
  • Page 19 M I G 3 0 0 M I C R O I N V E R T E R I N S T A L L A T I O N M A N U A L Step 8: Arrange the arrays to match the layout of the PV system and click the “Save” button. Note: Uploading a background image is not required.

  • Page 20: Troubleshooting

    Technical Specifications section on page 25. Step 5: Verify the DC leads are connected correctly between the micro inverter and the PV module. Step 6: If the problem persists, contact Darfon Technical Support at support@darfon.com. 2 0 | P a g e ©...

  • Page 21: Troubleshooting The Plc Box

    Troubleshooting the Data Logger If the monitoring system is not operating correctly, use the steps below to troubleshoot the problem. If the issue cannot be resolved using these steps, please contact Darfon’s technical services. Power LED did not turn on.

  • Page 22: Technical Specifications

    I N S T A L L A T I O N M A N U A L M I G 3 0 0 M I C R O I N V E R T E R TECHNICAL SPECIFICATIONS MIG300 Micro Inverter Input Data (DC) Recommended Maximum Input Power (STC)

  • Page 23: Plc Box

    M I G 3 0 0 M I C R O I N V E R T E R I N S T A L L A T I O N M A N U A L PLC Box Communication Serial Port Interface 1 x RS485 (For Data Logger)¹...

  • Page 24: Sample Wiring Diagram

    I N S T A L L A T I O N M A N U A L M I G 3 0 0 M I C R O I N V E R T E R SAMPLE WIRING DIAGRAM 240 VAC, single phase with monitoring system with Integrated Grounding.

  • Page 25: Installation Map Template

    M I G 3 0 0 M I C R O I N V E R T E R I N S T A L L A T I O N M A N U A L INSTALLATION MAP TEMPLATE R e v .

  • Page 26: Notes

    I N S T A L L A T I O N M A N U A L M I G 3 0 0 M I C R O I N V E R T E R NOTES __________________________________________________________________________________ __________________________________________________________________________________ __________________________________________________________________________________ __________________________________________________________________________________ __________________________________________________________________________________...
  • Page 27 M I G 3 0 0 M I C R O I N V E R T E R I N S T A L L A T I O N M A N U A L __________________________________________________________________________________ __________________________________________________________________________________ __________________________________________________________________________________ __________________________________________________________________________________ __________________________________________________________________________________ __________________________________________________________________________________...
  • Page 28 Darfon America Corp. www.darfonsolar.com 167 Shan-ying Road, Gueishan, 103A Pioneer Way, Taoyuan 333, Taiwan, (R.O.C.) Mountain View, CA 94041 Tel: +886 3 2508800 Tel: +1.650.316.6300 ©2014 Darfon America Corp. All rights reserved. All specifications are subject to change without prior notice.

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