Lust CDA3000 - Page 307

Application Manual CDA3000
6-55
6 Control modes
1
2
3
4
5
6
A
DE
EN
FR
Explanatory notes
• All controllers are set by the initial commissioning. With the FOR
speed controller the controllers can be fine-tuned as necessary to
the special needs of the application.
• The quality of the dimensioning of the speed control loop is based
on exact values for the moments of inertia of the motor and the sys-
tem. If the value 0 is entered the inverter module enters estimated
moments of inertia for the motor and the system (see section 5.1).
• The speed controller gain should be adapted by way of scaling
parameter SCGFx according to the application requirements.
Controller setting Effect
SCGFx small
• Long rise times, slow control response
• Disturbance compensation slow, the
controller appears undynamic
SCGFx large
• Short rise times, fast control response
• Disturbance compensation fast, the
controller appears dynamic
• Speed is noisy
• High noise
Table 6.28 Response of the encoder