OFF1–
If OFF1 Applied to Drive then Drive Will Follow Ramp Down Time to achieve 0 speed / Stop as Programmed in Parameter. ( Drive will slow down motor speed till 0 as programmed in Parameter)
OFF2—
If OFF2 Applied to Drive then Drive Will Stop Out Put voltage means Out Put voltage will become 0 immediately and Motor will be free and stop by load inertia no stop time calculation applicable for OFF2 Stop . OFF2 Stop known as cost stop also because motor coast down by its own inertia. OFF 2 is Electrical Safety Stop .
OFF3–
If OFF3 Applied to Drive then Drive Will Stop Motor to 0 Speed Immediately. This is quick stop . OFF3 is Mechanical Safety Stop.
Credit ——————– Raza