I can acquire a Sinamics G110 inverter (just bare unit) for a bargain price, but I am not sure will it work with simple 5 axis BOB, so I can control the speed of spindle motor via LinuxCNC or Mach3 (through bob's 0-10V analogue output). Motor is asynchronous single phase AC, 0.3 kw 2.1a. Any advice is appreciated!