Lust CDA3000 - Page 311

Application Manual CDA3000
6-59
6 Control modes
1
2
3
4
5
6
A
DE
EN
FR
Recording variables of the scope function in the DRIVEMANAGER
Optimization of current control
With regard to the following optimization and adaptation tips it should be
remembered that the overall current is composed of the d- and q-current
based on the following relationship:
As a result the effective value of the apparent current is produced as:
At a maximum device rated current (397-CFPNM) equivalent to the
apparent current IS the d- and q-current variables are thereby automati-
cally limited.
Recording variable Abbreviation User level menu
d-axle reference current idsoll 4
q-axle reference current iqsoll 4
d-axle current isd 4
q-axle current isq 4
Phase current phase U isa 1
Phase current phase V isb 1
Phase current phase W isc 1
Apparent current after filter for current-
controlled startup
is_ramp 3
DC-link voltage uzk 1
Slip frequency wFR 4
Output frequency (FOR) wFS 3
Rotor frequency (FOR) wRS_F 1
Table 6.31 Recording variables in the structure diagram of control with
FOR (Figure 6.27)
3.
iii
dq
=+
22
Ii
S
= 2