WEG CFW08 Vector inverter User Manual page 103

DETAILED PARAMETER DESCRIPTION
[Factory Setting]
Parameter
(1)
P404
Rated Motor
Power
This
parameter is only
displayed in Vector
Control (P202=2)
P407 (1)
Rated Motor
Power Factor the inveter model ]
(1)
P408
Run Self-Tuning
This
parameter is shown
on the display only
when in Vector
Control (P202=2)
(1)
This parameter can be changed only with the inverter disabled (motor stopped).
102
Range
Unit Description / Notes
0...15 Set this parameter according to motor nameplate, as shown in table
[ According to the below.
inverter model ]
-
This parameter is used only in Vector Control mode.
Set this parameter according to motor nameplate.
0.50...0.99
If this value is not available:
[ According to
- If the rated motor efficiency is known (
0.01
- For an approximation value, use the values of the table in item 9.3.
This parameter is used in V/F control [slip compensation function
and automatic torque boost function (automatic IxR)] and vector
control.
0...1
Through this parameter you can run the self-tuning routine, where
[ 0 ]
the stator resistance of the used motor is estimated automaticaaly
-
by the inverter. The motor will not run.
By setting P408=1, the Self-Tuning routine is started.
During the running of the Self-Tuning routine, the display flashes
If the interruption of the Self-Tuning routine is desired, press
If the estimated value of the motor stator resistance is too high for
the applied inverter (examples: motor is not connected or motor is
too small for the inverter) the inveter displays E14. You can only exit
from this condition by switching off the inverter.
P404
CV
0.16
0
0.25
1
0.33
2
0.5
3
4 0.75
5
6 1.5
7
8
9
10
5.5
11
12
7.5
13
10
14
12.5
15
obtain the power factor through the following equation:
∅
P407 = cos = 433 x
where P is the motor power in HP, V is the rated line voltage
of the motor in volts (V) - P400, and I is the rated motor current in
ampère (A) - P401.
.
Rated Motor power
HP kW
0.16 0.12
0.25 0.18
0.33 0.25
0.5 0.37
0.75 0.55
1 1 0.75
1.5 1.1
2 2 1.5
3 3 2.2
4 4 3.0
5 5 3.7
5.5 4.0
6 6 4.5
7.5 5.5
10 7.5
12.5 9.2
η
=P399),
nom
P
η
V x I x
nom
.