EasyDrive CV3100 Series Instruction Manual page 69

CV3100 series and MINI series high performance general purpose inverter instruction manual
6.1 Basic parameter
P0.00
Control mode
Setting range
0：Open-loop vector control
Namely Sensorless vector control (SVC)，it is applied to the high-performance drive
occasions withoutencoder PG .under this control mode,one inverter only drives one
motor. such as machine tools, centrifuges, wire drawing machine etc.
1：V/F control
Applying for occasions which ask for normal performance of speed control accuracy
and torque output at low frequency, such as fan or pump loads, one inverter can drive
for one more motors.
Note：
1．When SVC mode is selected, it needs motor parameters auto tuning (self-learning)
before first running, to obtain accurate motor parameters. Once the self-learning
process is complete, the parameters will be stored in the internal control board for later
use. Paying particular attention to that before self-learning you must ensure that data
on the nameplate data of motor must be accordant with motor parameters of inverter,
otherwise it will lead to self-learning process not be completed or getting the wrong
results. If failing in getting motor nameplate data, V / F control is better choice.
2．When selection of vector control mode, it is necessary to properly set up the
relevant parameters of speed regulator （ refer to P1.14， P1.15） , in order to assure good
steady and dynamic performance.
3．Under vector control mode, a frequency inverter can only drive one motor,
moreover the difference between grading capacity of inverter and motor can not be too
large, or it can lead to the control performance drop or not working properly of
inverter.
Chapter 6 Specification of function
0 Sensorless vector control (SVC)
1 V/F control
Factory setting
6-1
1