ronlyke
Cast Iron
- Joined
- Aug 24, 2008
- Location
- Queensbury, NY
I have a drill press which came with a single ph motor. I installed a 3 phase with a vfd, with the vfd output wired directly to the motor. Works fine.
I recently helped a friend who bought a drill press with a 3 ph motor (and starter--or whatever that box is). Rather than disconnect and bypass the box, he elected to run the vfd output into the box (using the existing power cord). The motor runs well, but when we slow it down a lot (like 20 hz or less), the box makes a clicking sound, like it's disconnecting,
and the motor stops. I guess that's a magnetic starter, but I don't know what I'm talking about. Also, it won't start when the vfd is set on low hz. Is this damaging anything? Should he bypass the starter & go directly to the motor?
Thanks.
I recently helped a friend who bought a drill press with a 3 ph motor (and starter--or whatever that box is). Rather than disconnect and bypass the box, he elected to run the vfd output into the box (using the existing power cord). The motor runs well, but when we slow it down a lot (like 20 hz or less), the box makes a clicking sound, like it's disconnecting,
and the motor stops. I guess that's a magnetic starter, but I don't know what I'm talking about. Also, it won't start when the vfd is set on low hz. Is this damaging anything? Should he bypass the starter & go directly to the motor?
Thanks.