Brushless Servo Motor
Brushless Servo Motor
(OP)
Aside from resistance and insulation test, can you please give me an idea how to test a servo motor without using a servo driver. It is a 1.5hp, 0 to 3000 RPM.
Thanks a lot.
dydt
Thanks a lot.
dydt





RE: Brushless Servo Motor
http://www.racalinst.com/ate_sys/servo.htm
http://www.si-plan.com/content/products/testmachines/limb.php
http://www.spectralogic.com/support/kbase/index.cfm/fuseaction/DisplayArticle/kbaseID/17/
etc. for more info.
RE: Brushless Servo Motor
If you really want to keep it simple, try spinning it with a variable speed electric drill (possibly use a bit of sleeving eg heatshrink to couple the drill to the motor), that will give you the open-circuit emf - best viewed on an oscilloscope to check the waveshape and phase relationships of the output phase voltages. The waveshape could be sinusoidal (a brushless AC motor and more common for a servo application) or more trapezoidal (classic brushless DC motor). If you vary the speed you can plot voltage against output frequency, to give the o/c voltage-speed characteristic. Of course, you ideally need to test against a known good motor.
RE: Brushless Servo Motor
RE: Brushless Servo Motor
Cameron Anderson
Sales & Applications Engineer
www.aerotech.com
"Dedicated to the Science of Motion"