Automation and control
VFD frequency from speed
Calculates VFD command frequency from synchronous speed and pole count.
Related calculators
Synchronous speed from frequency and poles
Calculates motor synchronous speed from supply frequency and pole count.
Motor slip speed
Calculates slip speed as synchronous speed minus rotor speed.
Ball screw linear force from torque
Calculates helper idealized ball screw linear force from torque, efficiency, and lead.
Motion required torque
Adds acceleration torque, load torque and friction torque for a simple axis balance.
Reflected inertia through gearbox
Calculates helper load inertia reflected through the square of the gear ratio.
Servo reflected inertia
Calculates load inertia reflected through gear ratio and the ratio to motor inertia.