Hi,
I have a question about running a 3-phase inverter off single phase supply. It's to simplify speed control of a thingummyjig at the local pottery.
The impression I have is that some inverters don't mind up to a point, but some don't like it, and I don't know anything reliable about this one.
It's a Telemecanique Altivar ATV-28HU29N4, for 1.5kw(2hp) on a 380-500V
3-phase supply. The motor is only 0.75hp so the converter should only see about 50% load max.
The book says that incoming phase loss "is only detected if the motor is on-load (about 0.7x nominal power). At low load, single phase operation does not cause damage"
Which implies it might be OK, but "low load" isn't exactly specified. I don't know if it's merely meant to survive occasional phase loss without damage, or if it's designed to survive full-time running at half load on a single phase.
Any ideas, preferably from someone who's used this brand?
Or any good deals at the moment on a single-phase to 3-phase inverter?
- Brian