AC Servo Motor Drive

[danieltmedlin]

I bought 4 Leedan 3kw AC servo motors, new in the box for $600. The problem is the company that I got then from, builds their own digital drives as part of thier cnc retrofit system. I don't need a new system.

I want to use one motor for a spindle motor and the other 3 for the X,Y, and Z axis. I have a Grey planer mill. The table is 4"x16"x59" so it weighs a ton. I need big motors to move it.

I have emailed Leedan www.servo-taiwan.com.tw many times inquiring on how to buy matching drives for their servo motors, but I never get a reply.

How or who else could I contact to purchase drives for these AC servo motors?

Dan

[Al_The_Man]

The biggest thing with BLDC and especially AC servo, is knowing the commutation method as to whether if and how to integrate into 3rd party drives.
For example, Fanuc use a 4 bit binary code and interpolate this into a sign wave to simulate resolver feedback, which makes it very difficult to integrate unless the commutation is replaced with a standard BLDC encoder, which I have done in the past.
Al. .