17-3
IM 253710-01E
Specifications
17
Measurement function of the motor module
(For details related to the determination and equations of measurement functions,
see “Chapter 15.”)
Motor modules can be used on only products (PZ4000) with firmware version 2.01 or
later.
Item
Symbol and Meaning
Rotating speed
Speed: Motor’s rotating speed
Torque
Torque: Motor’s torque
Synchronous speed
Sync
Slip
Slip
Motor output
Pm: Motor’s mechanical output (mechanical power)
Motor efficiency
*
η
mA or
η
mB: Ratio of the motor output versus the power consumption of the motor
Total efficiency
*
η
mA or
η
mB: Ratio of the motor output versus the power consumed by the motor as well as the
converter through which power is fed to the motor
*
The symbols
η
mA and
η
mB are assigned to either the motor efficiency or total efficiency depending on the circuit wiring to
elements 1, 2, and 3, and the selected wiring method (A-B). For details, see section 15.8.
17.4 Measurement Function (Measurement Item)