mv jr yasnac/yaskawa spindle motor problem | |
I am having a problem with the spindle motor or drive. It typically starts forward really slow but will start in reverse most of the time normal. In forward rotation it seems to be under powered, like maybe one of the 3 phases is not getting all the power required. I have an extra drive and spindle motor but don't want to replace both if I don't need to. Any suggestions would be appreciated. Sometimes it works just fine forward and reverse. Sometimes powering off the machine and powering it back on helps. When it orients for a tool change it kind of lugs. At low rpm's it seems to really run un-constant.
Danny |