Sourcetronic ST600-015G3 - SVPWM Control Mode

Frequency Inverter ST600 Series High-Performance Multifunction VFD Basic Operation Instructions
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P03.35
Control optimization setting
0–0x1111
Ones place: Torque command selection
0: Torque reference
1: Torque current reference
Tens place: Reserved
0: Reserved
1: Reserved
Hundreds place: Whether to enable ASR
integral separation
0: Disable
1: Enable
Thousands place: Reserved
0: Reserved
1: Reserved
0x0000
P03.36
ASR differential gain
0.00–10.00s
0.00s
P03.37
High-frequency ACR
proportional coefficient
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)
1000
P03.38
High-frequency ACR integral
coefficient
1000
P03.39
ACR high-frequency
switching threshold
100.0%
P17.32
Flux linkage
0.0–200.0%
0.0%
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. Users can select
corresponding V/F curve or set the V/F curve as needed.
Suggestions:
1. For the load featuring constant moment, eg, 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.
2. For the load featuring decreasing moment, eg, 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.