Re: Can I control a Fanuc servo drive with 3rd party controller?
Originally Posted by
MikeD51
Thanks for the replies everyone.
Sounds like is not possible. Such a shame that perfectly good servo equipment is unusable from another platform.
Unfortunately they are Red-cap servo motors. The spindle motor also has a red cap, so I assume a VFD will not work.
A little surprised that someone hasn't developed a solution as there must be a fair bit of old Fanuc gear around still.
So now to decide whether to replace the main board with another over-priced and obsolete Fanuc item, start again with new equipment, or scrap the machine.
Thanks again
Mike
As far as the Red cap servo's go, the commutation uses a 4 bit code that Fanuc interpolates to a sine wave for commutation purposes, there was someone here that made a convertor to BLDC commutation signals
What I have done also is remove the encoder and replace it with a normal encoder that has the commutation tracks on it also in order to use them as common BLDC servo's.
The older Black cap (DC) motors were the original N.A. Getty's servo's until Fanuc developed their own, these were the yellow cap.
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