Yotta DPI-208, Инструкция по установке и эксплуатации

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6.2 Troubleshooting a non-operating DPI-208 and DPI-480 Microinverter
6. Troubleshooting
There are two possible overall areas of trouble:
A) The Microinverter itself may be having problems.
B) The Microinverter itself is working fine but it is having trouble communicating with the ECU. The items
below refer to Microinverter issues, not communication issues (addressed in the ECU manual).
A quick way to tell whether the issue is wih the Microinverter or a communication problem with the ECU:
1) Diagnosing the Microinverter: A red light – either blinking or solid on the Microinverter, or no light at all.
No light, or a red light, means it is definitely a Microinverter problem.
2) Diagnosing from the ECU:
A) No-Data-Display: This is probably a communication issue, not a Microinverter problem.
B) Problems with erratic display: Data is displayed for some period and then no data is displayed. Most
likely a communication issue.
C) 0 watts, or 2 watts: Possibly a Microinverter problem.
D) Erratic data display that is not coordinating with data displays from other units is most likely a Microin-
verter problem.
To troubleshoot a non-operating DPI-208 and DPI-480 Microinverter,
Follow the steps below in order:
No need for maintenance.
Do not attempt to repair the DPI-208 and DPI-480 Microinverter. If troubleshooting
methods fail, please return the microinverter to your distributor for replacement.
6.3 Maintenance
1) Verify the utility voltage and frequency are within ranges shown in the Technical Data section of this
manual.
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 three 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 the Technical Data of this
manual.
7) If the problem persists, please call Yotta Energy Customer Support.
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