Hoymiles HM-300NT, Руководство пользователя

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HM-300NT/HM-350NT/HM-400NT
(1) Start-up Process
ü Flashing green five times (0.3s gap): Start-up success
ü Flashing Red five times (0.3s gap): Start-up failure
(2) Run Process
ü Flashing Fast Green (1s gap): Producing power.
ü Flashing Slow Green (2s gap): Producing power but one input is abnormal.
ü Flashing Slow Green (4s gap): Producing power but there is no communication with DTU.
ü Flashing Red (1s gap): Not producing power AC grid invalid (Voltage or frequency out of range).
ü Flashing Red (0.5s gap): There is a fault except the abnormality of grid.
(3) Other Status
ü Flashing Red and Green alternately: Firmware is corrupted.
*Note: All the faults are reported to the DTU, refer to the local APP of the DTU or Hoymiles Monitoring Platform for more
information.
6.3 On-site Inspection (For qualified installer only)
To troubleshoot an inoperable microinverter, follow the steps in the order shown.
1. Verify the utility voltage and frequency are within ranges shown in the in appendix Technical Data
of this microinverter.
2. Check the connection to the utility grid. Verify utility power is present at the inverter in question by
removing AC, then DC power. Never disconnect the DC wires while the microinverter is producing
power. Re-connect the DC module connectors and watch for five short LED flashes.
3. Check the AC branch circuit interconnection between all the microinverters. Verify each inverter is
energized by the utility grid as described in the previous step.
4. Make sure that any AC breaker are functioning properly and are closed.
5. Check the DC connections between the microinverter and the PV module.
6. Verify the PV module DC voltage is within the allowable range shown in appendix Technical Data
of this manual.
7. If the problem persists, please call Hoymiles customer support.
Warning