NEP BDM-300 User Manual

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QUICK INSTALLATION GUIDE

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



PREPARATION







󾙕󽗿󾙗󾙓󾙒󾙓󾙗





To install NEP Balcony Solution Micro Inverters (MI), read and follow all

warnings and instructions in this guide and in User Manuals for

corresponding model.

INSTALLATION



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Questions and Answers:

D
Deborah BowenAug 10, 2025
What to do if my NEP Inverter BDM-600 is inoperable?
- S
  sloanamberAug 10, 2025
  If your NEP BDM-600 inverter isn't working, start by checking the connection to the utility grid, ensuring the voltage and frequency are within acceptable ranges. Also, remove AC and DC power to verify utility power is present at the inverter. Then, reconnect the DC module connectors and watch for LED blinks. Check the AC branch circuit interconnection harness between all BDM-600s to ensure each inverter is energized by the utility grid. Confirm any AC disconnects are functioning correctly and are closed. Verify the PV module DC voltage is within the allowable range, and inspect the DC connections between the BDM-600 and the PV module.
R
Randy MontgomeryAug 23, 2025
Why is my NEP BDM-300 Inverter PLC signal weak?
- C
  Craig MillerAug 25, 2025
  A weak PLC signal in your NEP inverter might be due to the distance between the micro inverters and the gateway, or interference from other electronic devices. You can check the PLC signal quality through the interface on the BDG-256 gateway. To improve signal quality, try moving the BDG-256 closer to the micro inverter arrays or farther away from other sources of interference. In some situations, installing a signal filter (LCF) may help reduce interference to PLC communication.

NEP BDM-300 Specifications

General

Maximum Output Power	300W
Continuous Power	300W
Efficiency	96.5%
Cooling	Natural Convection
Output Frequency	50Hz/60Hz
Protection Features	Overvoltage, Overcurrent, Over Temperature

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