zero speed detector
zero speed detector
(OP)
I have a machine that has a cylinder which takes some time to stop once power has been removed. I would like to detect when that motor has stopped, but would like to do it without having to run more wire to, say , a zero speed switch or encoder.
Is there a device that I can hook to the bottom of the motor contactor and once power is removed, sense the voltage fed back from the motor as it winds down? Once that motor has stopped, I would use that to open a contact.
Is there a device that I can hook to the bottom of the motor contactor and once power is removed, sense the voltage fed back from the motor as it winds down? Once that motor has stopped, I would use that to open a contact.





RE: zero speed detector
<nbucska@pcperipherals DOT com> subj: eng-tips
read FAQ240-1032
RE: zero speed detector
Of course, if the time to stop is always the same (same load) then a timer will work as well.
RE: zero speed detector
http://www.rke.com/zvrs.pdf
"Venditori de oleum-vipera non vigere excordis populi"