WEG CFW-09 User Manual page 215

CHAPTER 6 - DETAILED PARAMETER DESCRIPTION
[Factory Setting]
Parameter
P407 (1) (2)
Rated Motor Power [ According to the
Factor motor rated power
This parame-
ter is shown on the
display(s) only when
P202 = 5 (VVW)
(1)
P408
Run Self-Tuning
This parame-
ter is shown on the
display(s) only when
P202 = 3 or 4
(Vector Control)
The Self-tuning
Routine can be
cancelled by
pressing the
key, only
when P409 to P413
are different from
zero.
Self-tuning can
be realized only with
P309 = Inactive (0)
216
Range
Unit Description / Notes
0.50 to 0.99
This parameter sets the motor power factor;
This parameter is important to the correct operation of the VVW Control.
The incorrect setting of this parameter results in the incorrect calculation
(P404) ]
of the slip compensation;
-
The default value of this parameter is automatically set when parameter
P404 is modified. The suggested value is valid only for IV pole standard
three-phase WEG motors. The user shall set this parameter manually
for other motor types.
This parameter controls the self-tuning routine, which estimates the value
0 to 2
of parameters related to the motor under use. When P408 is set to
(P202 = 3)
options 1, 2, or 3, the self-tuning routine estimates the value of parameters
[ 0 ]
P409 to P413. When this parameter is set to option 4, the self-tuning
1
routine only estimates the value of parameter P413.
0 to 4
Note: Best results for the self-tuning routine are obtained with a hot
(P202 = 4)
motor.
[ 0 ]
1
0 or 1
(P202 = 5)
[ 0 ]
1
- No rotation - The motor remains stationary during the self-tuning routine.
The value of P410 is obtained from a table, which is valid for WEG motors
up to 12 poles.
Thus, P410 must be set to zero before starting the self-tuning routine. If
P410  0, the self-tuning routine will keep the existing value.
Note: When using a non-WEG motor, set P410 to the proper value (no
load current) before running the self-tuning routine.
- Run for Imr - The value of P410 is estimated with the motor rotating.
This option shall be executed without load coupled to the motor.
P408 Self-tuning
0 No
1 No rotation Sensorless Vector, Vector with
2 Run for Imr Sensorless Vector or Vector
3 Run for Tm
4 Measure Tm
Table 6.62 - Self-tuning options
ATTENTION!
If the self-tuning routine is executed with a load coupled to the
motor and with P408 set to option 2 (Run for Imr), a wrong value of
P410 (Imr) may be obtained. This will result in a wrong estimation
of P412 (Lr/Tr Constant) and P413 (Mechanical Time Constant -
Tm). An overcurrent fault (E00) may also occur during the inverter
operation.
Note: The word "load" represents anything coupled to the motor
shaft such as a gearbox, an inertia wheel, etc.
Type of Control
-
3, 4 or 5
Encoder or VVW
3 or 4
with Encoder
Vector with Encoder
Vector with Encoder
P202
-
4
4