WEG CFW-11 Programming Manual page 142

Vector Control
Description:
By changing from the factory setting to one of the 4 available options, it is possible to estimate the value of the
parameters related to the motor being used. Refer to the next description for more details on each option.
P0408
0
1
2
3
4
P0408 = 1 – No rotation: The motor stands still during the self-tuning. The P0410 value is obtained from a
table, valid for WEG motors up to 12 poles.
NOTE!
Therefore P0410 must be equal to zero before initiating the self-tuning. If P0410≠0, the self-tuning
routine will keep the existent value.
Note: When using another brand of motor P0410 must be adjusted with the adequate value (no load motor
current) before initiating the self-tuning.
P0408 = 2 Run for I
coupled to the motor. P0409, P0411 to P0413 are estimated with the motor standing still.
ATTENTION!
If the option P0408 = 2 (Run for I
of P0410 (I
and for P0413 (mechanic time constant – T
inverter operation.
Note: The term "load" includes everything that might be coupled to the motor shaft, for instance, gearbox,
inertia disk, etc.
P0408 = 3 Run for T
It must be done, preferably, with the load coupled to the motor. P0409 to P0412 are estimated with the motor
standing still and P0410 is estimated in the same manner as with P0408 = 1.
P0408 = 4 – Estimate T
rotating. It must be done, preferably, with the load coupled to the motor.
11
11-24
Table 11.6 - Self-tuning options
Self-tuning
No
No Rotation Sensorless vector, with encoder or VVW
Run for I
Sensorless vector or with encoder
m
Run for T
Vector with encoder
m
Estimate T
Vector with encoder
m
: The P0410 value is estimated with the motor rotating. It must be executed without load
m
) is performed with the load coupled to the motor, an incorrect value
m
) may be estimated. This will implicate in estimation error for P0412 (rotor time constant - T
m
: The value of P0413 (Mechanic time constant – T
m
: it estimates only the P0413 (Mechanic time constant – T
m
Control Type Estimate Parameters
-
P0409, P0410, P0411,
). Overcurrent fault (F071) may also occur during the
m
) is estimated, with the motor rotating.
m
–
P0412 e P0413
P0413
) value, with the motor
m
)
r