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alvideo

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Everything posted by alvideo

  1. BUS voltage in mine inverter is incorrect - only 130V instead of 300V. What software i can use to read data visa USB from inverter (use BUSQPIGS command and etc.)?
  2. With external power supply (up to 500V and 2A) i connecting to PV and 50V battery, so i' m sure, it's is enough power to charge bus capacitors up to 300V. BUS line i will check in the evening, i not tested yet, i didn’t think it can be issue, because if bus failing, inverter report 09 error (bus soft failed). Thank You for good idea. My firmware is U1 20.10. I didn't try to do anything with firmware - update ant etc. This inverter never worked as should, i bought it defected, so at this time i trying to find problem and fix it.
  3. I am sure, i have warning 15 with ⚠ symbol, it‘s not error. Half effect current sensor L18P040D15 sense PV current. By datasheet sensor output range is 0.04 to 4V. I aplied 1 volt to current sensor output to simulate a higher PV input current, and i see, that inverter reporting current correctly, it depends from current sensor output range. For example, aplied 1 volt on current sensor output reporting on inverter 6,7A PV current (see below). So, on inverter PV input is real 280 volts, on PV current sensor i simulated 6,7A. Inverter see 276V and 3 ,6kW load (276Vx6,7A=1,8kW), but Warning 15 is still present. Here video with no any load, PV input 276V, Battery 50V Here video with PV input 276V, Battery 50V and simulated PV load 6.7A My inverter is with PV charge controller 120-450V and 48V Battery.
  4. How to fix Warning 15? I am sure PV energy is ok, about 300Volts, inverter display it correctly. At first i thought, that PV current monitoring circuit is failure, because inverter on PV input showing load 5-8 wats. So, to current sensor output from external supply i put 1 Volt, inverter shows PV input load 12A, but Warning 15 is still present. Anyboy have solution, ideas what to do next?
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