Block Diagram And Calculations Of Pg Speed Feedback Control - Toshiba VF5X-4575 Instruction Manual

2.2.4. Block diagram and calculations of PG speed feedback control
•Block diagram
Frequency
reference level
X*
----1.
Feedback
level
x
•Calculation formula
Integration
1 1
GI"$
Differentiation
GA·s
Limit*
1
*1 : Maximum frequency
F
1-1
x 12.5%.
E6580750
1
1 +s/GFs
6 f
=
1
+
s/GFs
X
GP{(X*-X)+(1 /GI)
f
(X * -X)dt + GA(d(X * -X)/dt)}
11
E