Svpwm Control Mode - INVT Goodrive350 Series Operation Manual

Goodrive350 series high-performance multifunction VFD
Function
code
P03.36 ASR differential gain
High-frequency ACR
P03.37
proportional coefficient
High-frequency ACR
P03.38
integral coefficient
ACR high-frequency
P03.39
switching threshold
P17.32

5.5.4 SVPWM control mode

The VFD also carries built-in SVPWM control function. SVPWM mode can be used in cases where
mediocre control precision is enough. In cases where a VFD needs to drive multiple motors, it is also
recommended to adopt SVPWM control mode.
The VFD provides multiple kinds of V/F curve modes to meet different field needs. You can select
corresponding V/F curve or set the V/F curve as needed.
Suggestions:

For the load featuring constant moment, such as conveyor belt which runs in straight line, as
the moment should be constant during the whole running process, it is recommended to adopt
straight-type V/F curve.

For the load featuring decreasing moment, such as fan and water pump, as the relation
between its actual torque and speed is squared or cubed, it is recommended to adopt the V/F
curve corresponds to power 1.3, 1.7 or 2.0.
Name
Flux linkage
Description
0: Reserved
1: Reserved
Hundreds place: Whether to enable ASR
integral separation
0: Disable
1: Enable
Thousands place: Reserved
0: Reserved
1: Reserved
0.00–10.00s
In the closed-loop vector control mode
(P00.00=3), when the frequency is lower
than the ACR high-frequency switching
threshold (P03.39), the ACR PI parameters
are P03.09 and P03.10; and when the
frequency is higher than the ACR
high-frequency switching threshold
(P03.39), the ACR PI parameters are
P03.37 and P03.38.
Setting range of P03.37: 0–65535
Setting range of P03.38: 0–65535
Setting range of P03.39: 0.0–100.0% (in
relative to the maximum frequency)
0.0–200.0%
-58-
Basic operation instructions
Default
value
0.00s
1000
1000
100.0%
0.0%