Hello All,
I am an electronics engineer but new to CNC milling. I have uses small steppers before (salvaged from ancient hard drives and floppies) but never used anything large.
Yesterday I received three NEMA23 size steppers which I ordered for my new milling machine. These are Mclennan 23HSX-206 (datasheet here: http://www.mclennan.co.uk/datasheets...per_motors.pdf )
I run them last night from my lab PSU at 32V with a Geckodrive G210 limiting the current to about 1.2A. When not in motion each motor consumed 320mA. To my surprise the motors became very hot. So hot that it is not comfortable to touch them. I couldn’t hold them tight in my hand for over 10-15 seconds or so.
At the moment I run the motors in parallel winding bipolar configuration. However the heat was similar even when I was using only two windings and leaving the other two unconnected.
I would appreciate your thoughts please. Are they meant to run so hot?
Many thanks,
Angelos