“I am looking for a sensorless vector VFD, single phase in three phase out to run a 220V three phase 5 hp motor that requires 13 amps at start.”
That’s awfully low for starting current; likelier that’s the FLA (full load amps).
If that’s the case, you’d get about 3 ˝ HP out of a 3 HP VFD rated at 10.5 A; you can get a Teco 3 HP VFD for $220.
“The PC1-50 VFD did not state if it was sensorless vector drive and I do not know if it has been derated for single phase use. Can you all help there?”
It says it is:
Input Voltage 200 - 230VAC ±10%
I also asked about the vector vs V/Hz issue, and was told it’s more a matter of precise speed control at low speeds, not torque.