Lust CDA3000 - Page 269

Application Manual CDA3000
6-17
6 Control modes
1
2
3
4
5
6
A
DE
EN
FR
Note for control engineers: The compensation factor KSC can be calcu-
lated by the following equation:
%
Note: If the slip compensation and the IxR load compensation influ-
ence each other, increasing the filter time of the slip compen-
sation may bring a remedy.
Explanatory notes
• Parameter values marked by an asterisk (*) in the “Factory setting”
(FS) column are dependent on the device power output. The values
correspond to an asynchronous IEC standard motor with the rated
device power output.
• The precondition for slip compensation is correct setting of parame-
ters MOCOS (cosϕ) and MOCNM (motor rated current I
NM
).
• A frequency correction proportional to the active current is added to
the reference frequency. Slip compensation takes effect as from
frequency CIFMx and is 100% active as from frequency CIFMx +
CIFRx.
• The compensation factor KSCx required for the function is automat-
ically calculated during initial commissioning and stored in parame-
ter KSCx.
• The frequency correction ∆φ may be positive or negative, depend-
ing on whether motorized or regenerative operation is selected.
KSCx
n
sync
n
nom
–
n
sync
----------------------------- 100⋅=