ACS71020 current value confusing
You always have unsigned 15-bit fixed point number with 14 fractional bits, not 16 with 15 fractional bits.
Why would you report 60A with a device that measures 30A: Because the power meter is subject to inrush currents, motor starting currents, ... that last for short time, but you want to record them even if they are outside the precision tolerance or clamped. So this device is capable of measuring 60A, but not as precise as the nominal measuring range and not for continuous duty.