GEH-6385 Reference and Troubleshooting, 2300 V Dr ives Chapter 4 Wizards
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Motor Control Tuneup

Motor Control Tuneup: Equival ent Circuit

The equivalent circuit for the induction motor used in the motor control tune-up i s:
R1
R2
inner
Lsigma
outer
R2
outer
Lsigma Bridge Flux
Flux Saturation
Curve

V

I

The motor elementals and flux saturation curve will be measured for the phase
combinations of AB and BC. After both sets of measur ements are completed the
balance of each phase pa ir will be compared for each motor elem ental and saturation
curve data point. The deviation of R1, R2, saturation curve should be less th an 10%
and for Lsigma less than 25%. The aver ages of the motor elementals an d saturation
curve are saved in the engineering parameter s (At_xxx) and used in the recalculation
of the motor control tune-up values.