Rockwell-automation SA500 Drive Configuration and Programming Manuale Utente Pagina 120

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F-2
SA500 Drive Configuration and Programming
F.2 Torque Gain
Where P_base = Rated Motor Power (W) (1HP = 746W)
W_base = Rated Full Load Speed (rpm)
Ifl = Rated Motor Current (rms)
Im = NL Stator Current (rms)
Nm = ft-lbs. 1.35582
K_torq = (Nm/Amp)
The torque producing component of the full load current, Iq, in the above equation is:
F.3 Stator Inductance
Where X
1
= Stator Leakage Reactance (ohms)
X
2
= Rotor Leakage Reactance (ohms)
fo = Rated Motor Frequency (Hz)
2
(W_base2
π)
2
Ifl
60P_Base
K
_
torq =
2
Im
()
2
2
Ifl
2
Im
()
Iq =
2
π
fo
X
1
+ X
2
L
'
s
1000
[mH]
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