
C-4
SA500 Drive Configuration and Programming
Figure C.1 – SA500 Vector Torque Algorithm Block Diagram
OUTER
CONTROL
LOOP(S)
PMI_REF%
+4095
-4095
SCALING
TORQUE
GAIN
C
SUM
Iu
Iv
DIFF
+
C
= DERIVED FROM CONFIGURATION PARAMETER
VECTOR
ROTATOR
CONVERSION
3-PHASE
CURRENT
REGULATOR
&
TO
SLIP
GAIN
C
SCALING
C
CURRENT
REGULATOR
CURRENT
REGULATOR
P
W
M
Iu UPPER
Iv UPPER
Iw UPPER
Iu LOWER
Iv LOWER
Iw LOWER
–
–
Iv
Iw
Iu
INT
+
SCALING
C
PWM
GAIN
C
SCALE
C
RESOLVER
POSITION
RES_SCN_POS%
RPM%
UDC MODULE
Iw
SUM
Θ
(ANGLE OF VECTOR)
Iq
Id
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