Configuration Parameters - P200 To P398 - WEG CFW-10 EASYDRIVE User Manual

6.3.3 Configuration Parameters - P200 to P398

[Factory Setting]
Parameter
P202 (1)
Type of Control
(1) This parameter can be changed only with disabled inverter (stopped motor).
CHAPTER 6 - DETAILED PARAMETER DESCRIPTION
Range
0 to 1
[ 0 - V/F linear ]
-
Main applications for this type of control are: centrifugal
pumps, fans, multimotor drivings.
Description / Notes
Defines the inverter control mode.
P202
Linear V/F Control (scalar)
0
Quadratic V/F Control (scalar)
1
As shown in table above, there are 2 V/F control modes:
Linear V/F control: this control mode ensures a flux in the
motor air gap approximately constant from around 3Hz
up to the field weakening (defined by the parameters
P142 and P145).
Thus in this speed range, an approximately constant
torque capacity is obtained. This control mode is
recommended for belt conveyors, extruding machines,
etc.
Quadratic V/F control: in this control mode the flux in the
motor air gap is proportional to the output frequency up
to the field weakening point (defined at P142 and P145).
Thus the torque capacity is a function of the quadratic
speed. The main advantage of this type of control is the
energy saving capability with variable torque loads, due
to the reduction of the motor losses (mainly due to motor
iron losses and magnetic losses).
Output Voltage
P142
0
(a) V/F linear
Type of Control
P136=0
Output
Frequency
P145
65