WEG CFW300 V1.3X, Руководство по программированию

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Available Motor Control Types
CFW300 | 8-1
8
8 AVAILABLE MOTOR CONTROL TYPES
The inverter feeds the motor with variable voltage, current and frequency, providing control of the motor speed.
The values applied to the motor follow a control strategy, which depends on the selected type of motor control
and on the inverter parameter settings.
The selection of the proper control type for the application depends on the static and dynamic requirements of
torque and speed of the driven load, that is, the control type is directly connected to the required performance.
Additionally, proper configuration of the selected control mode parameters is essential to reach maximum
performance.
The CFW300 is equipped with three control modes for the three-phase induction motor, that is:
„
V/f Scalar Control: for basic applications without output speed control.
„
Quadratic V/f Scalar Control: for applications that reduce motor and inverter losses without regulation of
the output speed.
„
V VW Sensorless Vector Control: for applications that need high performance in the control of the output
speed.
In Chapter 9 V/f SCALAR CONTROL on page 9-1 and Chapter 10 VVW VECTOR CONTROL on page 10-1 ,
each of these kinds of control, related parameters and directions regarding the use of each of these modes are
described in details.
P202 - Control Type
Adjustable
Range:
0 = V/f
1 = Quadratic V/f
2 to 4 = Not Used
5 = V VW Factory
Setting:
0
Properties: cfg
Description:
This parameter selects the kind of three-phase induction motor control used.
P139 - Output Current Filter
Adjustable
Range:
0 to 9.999 s Factory
Setting:
0.05 s
Properties:
Description:
Time constant of the filter for the total and active output current. You must consider a filter response time equal
to three times the time constant set in P139.
P140 - Slip Compensation Filter
Adjustable
Range:
0 to 9.999 s Factory
Setting:
0.5 s
Properties: V VW
Description:
Time constant of the filter for slip compensation in the output frequency. You must consider a filter response
time equal to three times the time constant set in P140.