This manual covers the Baldor Series 12 AC Adjustable Speed Drive, a variable‑frequency drive rated from 5 HP to 75 HP for three‑phase induction motors. It includes general information, installation and startup procedures, drive setup, status indicators, protective features, theory of operation, and troubleshooting guidance.
Safety warnings, wiring diagrams, mounting dimensions, and detailed specifications such as input voltage, ambient temperature limits, and warranty terms are provided. Appendices contain input protection data, setup sheets, internal fuse lists, renewal parts, tightening torques, and drawings.
| Motor compatibility | Three‑phase induction motors |
|---|---|
| Power rating | 5 HP to 75 HP |
| Input voltage | 208‑230 VAC (three‑phase) or 460 VAC |
| Ambient temperature limit | Up to +40 °C |
| Warranty period | 2 years from shipment |
The warranty is for two years from the date of shipment.
Yes, it can run on single‑phase power with a 40 % derate by connecting L1 and L2 and adding a jumper between L2 and L3.
The drive should be installed in an area where the ambient temperature does not exceed +40 °C.
It is designed for three‑phase squirrel‑cage induction motors.