Starting torque matters for motor breakaway
The FR-A820-11K-1: This drive delivers 250% starting torque at 0.3 Hz in HD (heavy duty) mode with real sensorless vector control. That means it can break away a loaded conveyor or crusher rotor without oversizing. In ND (normal duty) mode it still gives 200% at 0.3 Hz. The slope of the torque curve at stall is what counts here — the HD figure tells you how much grunt is available for high-inertia starts.
