User Manual

Drive Regulation Overview G-3
Figure G.1 – Volts/Hertz Regulator Block Diagram
Local
Option
Remote
Serial
P.000
Speed Ref. Selection
P.016
Draw Gain Speed Ref
Trim Ref
Jog Ref
Slip Comp
P.014
P.015 P.020
H.004
H.009 to H.015
+
+
+
Rate Selection
Avoid Freq.
Overload
DC Bus Voltage
Search Mot. Freq.
S-Curve
Ride Thru
Current Fbk
Frequency Reference
V/Hz Generator
Voltage Equations
VD
VQ
w1
PWM Controller
Forward Trans- formation Reverse Trans- formation
Line Voltage Fbk
A/D Converter
P.043 Fault Auto Reset Attempts P.044 Fault Auto Reset Time
Gate Signals
P.047 Carrier Freq. P.095 Power Module
Output amps
PWM Inverter
AC Induction Motor
A/D Converter
A/D Converter
DC Bus Voltage Comp.