I am using a 10 HP rotary converter that is providing pass-thru voltage of about 240V on two legs, and something on the order of 265V on the generated leg. This is a commercial converter that I acquired along with a Tree J325 CNC knee mill.
The Tree input power spec is 230V +/- 5%, and I have run into a power-up problem (servos won't turn on) on the machine that may have been caused over time by the use of this converter, by previous owner and then me. The Tree employs a shunt-trip input breaker for the 3-phase power, and it now trips immediately upon application of power to the servo cabinet. Not a promising sign, in my estimation. The control unit is powered separately by the two 240V legs, and doesn't show any issues.
I want to get my power situation squared away before I resume troubleshooting the Tree problem. My questions are these:
-- What should I look for in the converter setup to reduce the voltage of the generated leg?
-- OR, will a 3-phase transformer that is fed with unbalanced voltages from the RPC provide any averaging function to help the individual legs get closer to each other?
The Tree input power spec is 230V +/- 5%, and I have run into a power-up problem (servos won't turn on) on the machine that may have been caused over time by the use of this converter, by previous owner and then me. The Tree employs a shunt-trip input breaker for the 3-phase power, and it now trips immediately upon application of power to the servo cabinet. Not a promising sign, in my estimation. The control unit is powered separately by the two 240V legs, and doesn't show any issues.
I want to get my power situation squared away before I resume troubleshooting the Tree problem. My questions are these:
-- What should I look for in the converter setup to reduce the voltage of the generated leg?
-- OR, will a 3-phase transformer that is fed with unbalanced voltages from the RPC provide any averaging function to help the individual legs get closer to each other?