Available Motor Control Types - WEG CFW501 V1.8X Programming Manual

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.
Besides, the setting of the parameters involved is essential to reach such performance.
The CFW501 is equipped with two control modes for the three-phase induction motor, that are:
V/f Scalar Control: for basic applications without output speed control.
„
V V W 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
each of these kinds of control, related parameters and directions regarding the use of each of these modes are
described in details.
P0202 – Control Type
Adjustable 0 to 2 = V/f
Range: 3 = V V W
Properties: cfg
Access groups STARTUP
via HMI:
Description:
This parameter selects the kind of three-phase induction motor control used.
NOTE!
When the V V W mode is programmed via HMI (P0202 = 3), the STARTUP menu is activated
automatically, forcing an oriented start-up for vector mode setting. See
V V W MODE on page
P0139 – Output Current Filter
Adjustable 0 to 9999 ms
Range:
Properties:
V/f, V V W
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 P0139 (50 ms).
and chapter 10 VVW VECTOR CONTROL on page
10-8.
Available Motor Control Types
Factory 0
Setting:
chapter 10.2 START-UP IN
Factory 50 ms
Setting:
10-1,
8
CFW501 | 8-1