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How can I calculate the processing torque from the measured power?
I use the standard three-phase motor SF-JR 7.5 kW 2P and the FR-A520-7.5K inverter to rotate the main shaft.
I want to calculate the processing torque of each while rotating at a certain output frequency.
The power is measured on the output side of the inverter. Can I calculate the torque from this power?
Is there any method to obtain the motor torque from the frequency and measured data (for example, current value)?
I want to calculate the processing torque of each while rotating at a certain output frequency.
The power is measured on the output side of the inverter. Can I calculate the torque from this power?
Is there any method to obtain the motor torque from the frequency and measured data (for example, current value)?
- Category :
Answer
You can calculate the torque from the power.
From the general equation: Pout = ωn × T
T = (Pout × τ)/ωn
Pout: Measured value
ωn: Actual motor shaft angular frequency (rad/s)
T: Torque
τ: Motor loss
Use this equation to calculate the torque.
From the general equation: Pout = ωn × T
T = (Pout × τ)/ωn
Pout: Measured value
ωn: Actual motor shaft angular frequency (rad/s)
T: Torque
τ: Motor loss
Use this equation to calculate the torque.
- Product Name
- Inverter, magnet motor drive
- Product Category
- Others
- Series
- FR-A500
