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Hi there, I have a Huayang vfd 2.2kw, my question is: can this vfd be used to run an AC motor for my milling machine, if so, can anyone suggest a motor or know of one that can be purchased in Aus? I wish to replace the one that came with the Hafco HM30 mill drill.
Regards
Nick
Hi. Driving an AC motor is what a VFD is for. But it needs to be a 3-phase motor which can be configured for 240 volt in Delta configuration. It can be any size up to 2.2kW.
What size motor is on your mill now?
Quote:
Originally Posted by jhovel
The motor is a 2hp single phase.
Nick
Sorry Nick, that prevents you from using a VFD. You may consider changing the motor to a 3-phase one and a VFD and then you are good to go with a great range of speeds.
Quote:
Originally Posted by jhovel
Thanks Joe, I will have to shop around for a 3phase motor.
They are very cheaply available second hand. Most just need new bearings - if anything. eBay and Gumtree are a good starting point.
Do choose a motor that has 240V Δ and 415V Y on the label - or similar. Its the Δ that's the important bit for VFD connection.
Thats good to know about the 240 and 415 volt set up I was under the impression that they were two different motors.Quote:
Originally Posted by jhovel
Nah, they are just two ways 3-phase motors can be wired up (in their junction box). To get a better idea of what's going on, go and have a read of http://en.wikipedia.org/wiki/Three-phase_electric_power It will give you a better insight. It even talks about VFDs.