CAD CAM EDM DRO - Yahoo Group Archive

Help to find out servo specs

Posted by afogassa
on 2011-04-29 07:09:10 UTC
Hi All,
I´ve got a brushless servo motor at a local junk yard last night,cleaned it good and replaced the bearings.
there is no name plate on it and no clues on it to find out who makes it. it has a renco absolute encoder on rear of it.
I did turn it at about 680 rpm and meassure the three fases to about 16.8v all the same.
the flange meassures 90mm square the body is 88 mm square made of aluminum with fins along it and it´s 150mm long to the rear bearing,the rotor has 6 poles(segmented skew strong magnets) and 35.5mm od.
the winding wire is 0.45mm diameter.
there is 5 leads coming out of the windings red,blue,black and two white ones. i think the white ones are for temp sensors.
I´m wondering if there is way to know the motor specs based on the voltage being generated with the motor being turning a certain speed?
I don´t have a brushless drive to test it I want to know a little more about this motor before buying the drive for it.

Thank´s
Fogassa

Discussion Thread

afogassa 2011-04-29 07:09:10 UTC Help to find out servo specs