WEG CFW08 Vector inverter User Manual page 83

DETAILED PARAMETER DESCRIPTION
Parameter
P203 (1)
Special Function
Selection
(1)
P204
Load Factory
setting
(1)
P205
Display
Default
Selection
P206
Auto-Reset Time
(1)
This parameter can be changed only with the inverter disabled (motor stopped).
82
Range
[factory Setting]
Unit Description / Notes
The vector control allows a better performance regarding to torque
and speed control. The CFW-08 vector control operates without
motor speed sensor (sensorless). It must be applied when following
performances are required:
- better dynamics (faster accelerations and stoppings);
- when a more accurate speed control is required;
- when high torques at low speeds are required ( 5Hz).
Examples: in positioning, such as load moving, packing machines,
pumps, dosing machines, etc.
The vector control can not be used in multimotor applications.
The performance of the vector control with a switching frequency of
10kHz is not so good as when a switching frequency of 5kHz or
2.5kHz is used. It is not possible to use a vector control with a
switching frequency of 15kHz.
For more details about the vector control, refer to Item 6.2.3.
Selects or not the special function of the PID regulator.
0...1
[ 0 - None ]
-
See detailed description of PID regualator parameters (P520...P528)
in Section 6.3.5.
When P203 is changed to 1, P265 is changed automatically to 15
(DI3 = manual/automatic).
Programs all parameters to the standard factory default, when
0...5
P204=5.
[ 0 ]
The parameters P142 (max. output voltage), P145 (field weakening
-
frequency), P295 (rated current), P308 (inverter address) and P399
to P407 (motor parameters) are not changed when the factory default
parameters are loaded through P204=5.
Selects which of the parameters listed below will be shown on the
0...6
display as a default after the inverter has been powered up.
[ 2 - P002 ]
-
In the event of a fault trip, except for E14, E24 and E41, the inverter
0...255s
can initiate an automatic reset after the time given by P206 is
[ 0 ]
elapsed.
1s
If P206 2 Auto-Reset does not occur.
If after Auto-Reset the same fault is repeated three times
consecutively, the Auto-Reset function will be disabled. A fault is
considered consecutive if it happens again within 30 seconds after
the Auto-Reset. Thus if a fault occurrs four times consecutively,
this fault remains indicated permanently (and inverter disabled).
P203 Special function
0 None
1 PID regulator
P205 Read Parameter
0 P005 [Output Frequency (Motor)]
1 P003 [Output Current (Motor)]
2 P002 (Value Proportional to Frequency)
3 P007 [Output Voltage (Motor)]
4, 5 Not used
6 P040 (PID Process Variable)
≥
≥