Discuss Help needed with repair of an Enecsys SMI480-60 Solar inverter in the Solar PV Forum | Solar Panels Forum area at ElectriciansForums.net

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Hello,

i am trying to repair an Enecsys SMI 480-60 Solar inverter.

I was looking for a schematic on the internet for quit a long time and finally found a schematic on this forum wich is very great.
This thread: Enecsys 480W schematic - https://www.electriciansforums.net/threads/enecsys-480w-schematic.150960/

I inspected the unit en found no burned components, the fuse is ok and there are no short-circuited power mosfets.

This inverter behaves as follows when it is connected to the 220 volts and the solar panels are connected:
  • on a properly functioning inverter, the yield of these panels is approximately 31 watts just before conversion;
  • on the enecsys inverter everything stays at 0 for about 2 minutes;
  • after about 2 minutes, my power meter indicates 2 watts as yield (or decrease) and about 41 VA (apparent power);
  • shortly afterwards everything goes back to 0 and it stays that way.

It looks like the DC circuit is okay and there is an error somewhere that shuts things down.

I hope someone can point me in a direction to track down and fix this error?
 

Reply to Help needed with repair of an Enecsys SMI480-60 Solar inverter in the Solar PV Forum | Solar Panels Forum area at ElectriciansForums.net

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