Siemens D7-SYS - Page 479

Closed-loop thyristor current control
System- and communication configuring D7-SYS - SIMADYN D 5-39
Edition 06.2002
KP
KP
CPC
TN
f
(SV)
min f
(X)
f
(X)
0
1
-
WC
ILU
ILL
XC
S
SV
PC
Hold
Inhibit, pos.
Inhibit, neg.
EN
+
+
SVC
ALL
CLU
ALU
YE
YP
QU
Y
QI
YI
YWP
ZSL
ZSU
0,0
TN
+
Set
Fig. 5-22 Function chart CPI
EN = enable controller X = irrelevant
S = setting the integrator with the setting value
SVC = pre-control mode
0XX
Controller inhibit
Outputs Y,YE,YWP,YP,YI are set to 0
100
Normal function
YIYPY +=
1 0 1 With continuous tracking (correction)
0 YI,YWPYPY =+=
1 1 0 Setting mode
SV YI, YIYPY =+=
111
Setting mode with continuous tracking
SV YI, YWPYIYPY =++=
Table 5-10 Behavior of the control inputs