- Joined
- Jun 12, 2014
- Messages
- 4,808
If the motor is not connected, you should be able to power up the VFD without an error. Most VFDs these days can be programmed without the motor attached, but with the VFD powered up. In either case it should not damage the VFD, you will most likely get some form of error if try to run the VFD with no motor attached when running in a sensorless vector mode, but not a v/Hz mode. Most likely the VFD is bad if it power up with this type of error, I recall a few cases where the VFD was bad out of the box. I also had a recent encounter on a new lathe conversion with a WJ200 where it would go into an over current error when trying to start the motor. It ended up being a bad new motor, and worked just fine after the motor was replaced.
The Teco FM models are very simple, easy to install and reliable. They do not run sensorless vector and have limited functions, so they work well in simple installs and you do not need a wide operating envelope. So for older motors, mills, etc. they work just fine.
The Teco FM models are very simple, easy to install and reliable. They do not run sensorless vector and have limited functions, so they work well in simple installs and you do not need a wide operating envelope. So for older motors, mills, etc. they work just fine.