WEG CFW501 V1.8X Programming Manual page 160

HVAC Functions
P0407 – Motor Rated Power Factor
Adjustable
Range:
Properties:
Access groups
via HMI:
Description:
Setting of the motor rated power factor.
In order to obtain the proper operation of the energy saving function, the motor power factor must be correctly
set, according to the information on the motor nameplate.
Note:
With the motor nameplate data and for applications with constant torque, the motor optimum efficiency is
normally obtained with the energy saving function active. In some cases, the output current may increase,
and then it is necessary to gradually reduce the value of this parameter to the point in which the current value
remains equal to or below the current value obtained with the function disabled.
For information regarding the actuation of P0407 in the V V W control mode, refer to
CONTROL on page
P0588 – Energy Saving Maximum Torque
Adjustable
Range:
Properties:
Access groups
via HMI:
Description:
This parameter defines the torque value to activate the operation of the energy saving function.
Setting this parameter to 0 % disables the function.
It is recommended to set this parameter to 60%, but it has to be set according the application requirements.
P0589 – Level of Minimum Applied Voltage
Adjustable
Range:
Properties:
Access groups
via HMI:
Description:
This parameter defines the minimum voltage value that will be applied to the motor when the energy saving
function is active. This minimum value is relative to the voltage imposed by the V/f curve for a certain speed.
18
18-2 | CFW501
0.50 to 0.99
cfg, V/f, V V W
MOTOR, STARTUP
10-1.
0 to 85 %
cfg, V/f
HVAC
40 to 80 %
cfg, V/f
HVAC
Factory 0.80
Setting:
chapter 10 V V W VECTOR
Factory
60 %
Setting:
Factory 40 %
Setting: