Drive selection memo — VFD055M21A
The Delta VFD055M21A is a VFD-M series micro drive rated for a 5.5 kW (7.5 HP) motor on a single-phase 230 VAC supply. Output is 10 A continuous, 3.8 kVA, with a 0.1–400 Hz frequency range and a 1–15 kHz carrier frequency. The sensorless vector control algorithm handles general-purpose variable-torque loads like fans, pumps, and small conveyors without an encoder feedback card. Input accepts single- or three-phase 200–240 VAC, 50/60 Hz, with ±10% voltage tolerance (180–264 VAC) and ±5% frequency tolerance (47–63 Hz). The rated input current is 11.5 A on single-phase supply; if fed from three-phase power, the single-phase model draws 27 A at full load.
