Hello
I am in the final stage of my Solar AC pump project.
I am implementing a dry run current shutdown, but unsure how to do this in a solar powered (VFD) setup.
The motor current is varying based on applied frequency based on solar power.
I implemented the simple current threshold algorithm and wait to see if it stays there.Once it is confirmed, i shut down pump.
Seems this may not work since in late evenings or a cloud cover, the healthy current is anyway going to be low (due to lower solar power) .In some cases , it will be lower than the set threshold.
How can this be achieved?
Can someone throw some light??
Thanks and regards
I am in the final stage of my Solar AC pump project.
I am implementing a dry run current shutdown, but unsure how to do this in a solar powered (VFD) setup.
The motor current is varying based on applied frequency based on solar power.
I implemented the simple current threshold algorithm and wait to see if it stays there.Once it is confirmed, i shut down pump.
Seems this may not work since in late evenings or a cloud cover, the healthy current is anyway going to be low (due to lower solar power) .In some cases , it will be lower than the set threshold.
How can this be achieved?
Can someone throw some light??
Thanks and regards