Re: Which Spindle and VFD... again
Getting ready to pull the trigger on my spindle and VFD and had some additional questions about amp ratings and torque ratings and the distinction between motors.
- Why are some models sold having different amperage draws than others given the KW? e.g. multiple 4kw motors have 10amp or 15amp ratings...
- How can I determine the torque of a motor given that most do not list them on ebay listings?
- Is it better to have a larger VFD than the motor or should they be equal?
- Does the VFD normal only require 220 single phase input and generates 3phase output or does it require 3phase input to generate 3phase output, a little confused here..?
- Should the breaker match the amperage or double that of the motor? I will be re-using a circuit from an old hot tub which I think has a 50amp breaker, just wondering if I should change it.
Thanks,
Gecko G540, Rack and Pinion Drives-X and A axis, 1/2-10 5 Start Acme-Z Axis
4-THK HSR 25 Linear Slides, KL23H2100-35-4B, Power Supply-KL-600-48 48V