General Drives Questions Frequently Asked Questions
Question
Can I run my application at extremely low speeds?
Answer
Three major problems exist with both conventional methods of motor control and VFD control.- When a motor is directly coupled and run at low speed it becomes very inefficient. One could go with a high torque motor that is significantly larger than the standard (including higher cost), and would have the same results most of the time.
- Typical motors do not cool themselves well at extremely low speed. The added heat buildup in the windings can cause premature motor failure. Check with the motor manufacturer for more details.
- The other issue is load inertia, which is larger than that of the motor. These effects increase greatly with a transmission system that is sloppy. A speed reducer or gearbox should be employed to solve this problem. It will match the inertial changes and increase the efficiency. ADC does offer various Mechanical Power Transmission options.
FAQ Subcategory: None
This item was last updated on 2021-03-24
Document ID: 775
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