Grid Tie of Grid

Hi all.

I have Fronius Primo 5.0-1 Grid Tie inverter, 5kw.
I wonder if it will be possible to wakeup this inverter with a Hibryd inverter from aliexpress?
To work total OFF Grid .
I know it does not work with normal off grid inverter, because when the Fronius turns on, start alot off AC output and has dont find a Real Grid, it makes troble In the off grid inverter capacitors. Not designed for this.
So i wonder if an Hibryd inverter, there is any chance to feed the Fronius with AC to make it work, and when the Fronius get the strong output AC, if it will works?? I tried to make a diagram picture.

Best regards for all.
Every opinion are welcome.

What is your off grid source of power?

Connect that to the inverter and a battery and see if it works without a grid connection.

Always connect the battery to the controller first and then the solar panels or other source.

If that doesn't work then it is unlikely that can be used off grid.

Hi thank you for answer.
The test was made with an 24v 6kw/12kw peak.
Like i already said the normal of grid inverter can not make it becsuse, when the Fronius 5Kw makes the full output it blow up the capacitors from the off grid inverter. Its not designed to get power back...just for output.
Until there i can understand, now what i would like to know, is if i use an Hibryd inverter to turn on the Fronius grid tie , if it will work?
Must be tested, if some one knows it or done it, because in teorie its one thing, in pratic its not easy make this.