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Voltex 5KVa (2 inverters in parallel) settings?


Mllsea004

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You need a paralleling kit for each inverter, suitably wired. They will automatically become master and slave once you change the AC output mode setting (setting 28) from SNG to PAL. This has to be done with the inverter switch off (so no loads being powered at the time).

The firmware versions have to be quite close to each other, ideally they should be identical. If you don't have everything right, you'll end up with fault codes like 72 or 80. Make sure that you can isolate each inverter's output separately.

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Thank you Coulomb - we have the kit and it used to work but my dad “played” with the settings and now it has an interruption every time the mains is switched on and off. I checked the PAL setting and they are both set as such. 
 

do you have any other suggestions of things to try?

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1 hour ago, Mllsea004 said:

Thank you Coulomb - we have the kit and it used to work but my dad “played” with the settings and now it has an interruption every time the mains is switched on and off. I checked the PAL setting and they are both set as such.

do you have any other suggestions of things to try?

Try to go trough all settings of both units to verify them. Some settings are synchronized automatically, some are not. Make sure your 4 synchronizing cables are well connected.

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Are they still not reliably identifying as master and slave? If so, that sounds like parallel cabling as Beat mentioned above, or possibly a hardware fault with the paralleling boards. I had a problem with one of mine following a nearby lightning strike. My story is here. There is a partial schematic trace in the following post.

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