Functions
5.7 Closed-loop control
Frequency inverter
Operating Instructions, 08.10. 2008, t.b.d.
113
5.7.2.2
Commissioning vector control
The vector control without encoder requires careful commissioning and therefore must only
be performed by commissioning engineers that are experienced in handling this type of
control.
Steps when commissioning vector control
1.
Carry out quick commissioning (P0010 = 1)
In order to ensure that the vector control functions perfectly, it is absolutely imperative
that the motor data are correctly entered
2.
Run the motor identification routine (P1900 = 2)
The motor identification routine must be carried out with the motor in the cold state. Motor
identification must be carried out after the quick commissioning as the quick
commissioning supplies output data for the motor model and the motor identification
makes these even more precise
3.
Carry out the automatic speed controller optimization (P1960 = 1)
4.
Manually optimize the speed controller
Table 5- 24 The most important vector control parameters
Parameter Description
P0003 = 2
Extended access to the inverter functions
P1300 = 20 Control type: Vector control without speed encoder
P300 …
P360
Motor data are transferred from the motor rating plate during the quick commissioning
and calculated with the motor data identification
P1452 = … Smoothing the actual speed
P1470 = … Speed controller gain
P1472 = … Speed controller integral time
P1496 = … Speed pre-control scaling for the speed controller
P1511 = … Additional torque
P1520 = … Upper torque limit
P1521 = … Lower torque limit
P1530 = … Motoring power limit
P1531 = … Regenerative power limit
For more information about this function, refer to the parameter list as well as the function
diagrams 7000, 7500, 7700, 7800 and 7900 in the List Manual.