I can send you the software if you can afford my price. Send me an email address to send to; preferably email it to me.... mike -at- KilroyWasHere -dot- com.
We have too many motors and drive models to remember them all but I did not think there was a derate for 1ph on this one, and there surely is not a derate of speed as the PMA was a 230v designed motor anyway (again IIRC).
If it has step/dir AND analog input (again, too many old models to remember all) then yes you should be able to change from one to the other but it most likely is a software parameter so not readily changable with an input...
oh ya, my price for the software: $ 0