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Application Manual CDA3000
6 Control modes
6.2.2 _80 CC-Current
controller
The parameters of the current control subject area are detailed in section
5.5.10. Please note the information given there.
Explanatory notes
• All controllers are set by the initial commissioning. With the speed
controller SFC and the current controller (see section 5.10) it is
possible to make fine adjustments of the controller properties to the
application where necessary.
• The dimensioning of the speed control loop is based on the values
specified by auto-tuning for the motor and system moments of iner-
tia. 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 is adapted by way of the scaling parame-
ter SSGFx according to the requirements of the application.
Controller setting Effect
SSGFx low
• Long rise times, slow control response
• Disturbance compensation slow, the
controller appears undynamic
SSGFx high
• Short rise times, fast control response
• Disturbance compensation fast, the
controller appears dynamic
• Speed is noisy
• High noise
Table 6.13 Response of the speed controller
Function Effect
• Setting of current controller
functions
• Parameter setting of the PI
current controller
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