whistlesgowoo
Member
- Location
- San Francisco
I am looking into using a VFD for the following application:
A motor is attached to a shaft. On the other end, a constant torque is applied to the shaft, thus turning it at a constant, default speed. Tight control of shaft speed is needed both above and below this default speed.
In order to increase the shaft RPM above the default level, I was planning to use a VFD. The question then is: can I reduce the shaft RPM below the default level using the same VFD? If so, how would I do this, what type of VFD would I need, etc?
I’ve looked at DTC drives, would this be a good option? I’ve also read about braking with VFDs, but I couldn’t determine if there was a way to set the level of braking I wanted, or if it would just brake until 0 RPM?
Other info: Looking at 10HP motor @ 3600 RPM. Fine with just “wasting” energy in order to reduce shaft speed.
This is definitely all new to me, so I greatly appreciate any and all help.
Thanks.
A motor is attached to a shaft. On the other end, a constant torque is applied to the shaft, thus turning it at a constant, default speed. Tight control of shaft speed is needed both above and below this default speed.
In order to increase the shaft RPM above the default level, I was planning to use a VFD. The question then is: can I reduce the shaft RPM below the default level using the same VFD? If so, how would I do this, what type of VFD would I need, etc?
I’ve looked at DTC drives, would this be a good option? I’ve also read about braking with VFDs, but I couldn’t determine if there was a way to set the level of braking I wanted, or if it would just brake until 0 RPM?
Other info: Looking at 10HP motor @ 3600 RPM. Fine with just “wasting” energy in order to reduce shaft speed.
This is definitely all new to me, so I greatly appreciate any and all help.
Thanks.