Many companies go through numerous off-the-shelf drives before they realize they need a custom, ruggedized motor drive. The telltale signs of this are, failure during deployment, failure after traveling to a site, not starting in the winter, over-temperature tripping, downtime, sup-par operating performance, customer complaints, and more. Finding the right motor drive to meet your demanding requirements can be a bit like looking for a needle in a haystack, but once you find the right manufacturer and right ruggedized motor drive, you will be rewarded with a lower total cost of ownership and higher customer satisfaction.
Ruggedized motor drives are custom variable frequency drives, designed to meet specific operating requirements. Examples of extreme motor drive requirements include:
- Input/output frequencies up to 400Hz
- Temperature range down to -40C, -40F. Up to +55C, +60C, +65C
- Continuous Vibration up to 2grms
- Shock (drop, near detonation) up to 40g
- Humidity up to 95% non-condensing
- Stall prevention
- Auto restart
- Operation at Altitudes up to 14,000 ft.
Invention House builds American-made ruggedized motor drives that as a baseline are designed to meet one or more of the above specifications. These conditions also form the basis of military specification (mil-spec) motor drives. If a drive is built to meet mil-spec conditions, it will likely survive any industrial or commercial application.
