Siemens SIMADYN D Manual page 471

Normalization
System- and communication configuring D7-SYS - SIMADYN D
Edition 06.2002
ITDC
XFO
f
#
AL1
RRC
ARC
f
(#)
NF
AL2
IAV
XF2
CX1
IM1
IM2
CX2
Fig. 5-14 Function chart CAV
The normalized current actual value {0 ...1} is displayed at output
CAV.YC with the value CAV.NF = 1.
If NF is set to ARV, the absolute value
changed-over, this has an effect on the setting of the controller
parameters!
Calculating the drive converter output current:
= +
with I f 60[kHz] 15[kHz]
The current actual value YC is calculated as follows:

−
I f
∗
RRC NF
 
= ⋅
YC

ARC
Output YC is signed.
Calibration frequency of the V/f converter. The center frequency (60[kHz])
of the V/f converter in the Sitor converter has an offset.
The offset frequency for I
YFO =
YFI - 60[kHz]
Closed-loop thyristor current control
KP
KP
f
α
( INV)
EN >0
M1
M2
= ˆ
[A] is displayed. If the value is
I
Sitor
⋅
ARC
←
Frequency range : 30 45
∗
2 - 1 -

−
60 [ kHz ] XFO
 

15 [ kHz ]
= 0 [A] is available at connection CAV.YFO.
A
- XFO
YFO
YFI
YC
[°]
YAU
QSF
Bit10
Fault
eval.
Bit11
CAV.dsf
← → →
60 75 0 9 [kHz]
∗ = ∗ ∗
I 0 1 2 I
rated
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