Hi everybody,
We have special purpose dc servo motor on a machine. Motor has 7 input pin which are
vdc +
Vdc -
Serial tx
Serial rx
Gnd
Canopen Can_H
Canooen can_L
Our problem is motor work normal when machine is powered on. When there is no power on machine, there is a handwheel on the other side of metal rod and user try to make positioning by hand. Motor is connectod to rod directly and servo motor act as jenerator and makes noise. Motor driver is integrated inside motor and we can't do anything to driver. is it possible to do something when there is no power do solve noise problem. For example adding a diode or anything between power?