Closed-loop thyristor current control
5-14
System- and communication configuring D7-SYS - SIMADYN D
Edition 06.2002
PA6.
Significance
Value\connection
INV
Rotating field detection mode
INV=0 continuous monitoring,
INV=1 the rotating field is defined once when starting
INV=2 no monitoring
(Initialization connection/
default: 0)
FNT
Line supply frequency [Hz] for start of synchronization after the
line supply voltage is switched-in
Condition: 6
≤
PA6.FNT
≤
600, otherwise, QSF\bit 9 = 1
(Initialization connection/
default: 50)
CTH
Firing pulse output, time value
(this value changes in each cycle)
PA6.CTH
→
PC6.CTH
(Default: 0)
CTS
Time value at the start of FB-PA6
(the value changes in each cycle)
PA6.CTS
→
PC6.CTS
(Default: 0)
RDY
Enables the firing angle controller FB-PC6,
internal interrupt frequency is harmonized to the line supply
frequency
PA6.RDY
→
PC6.EN
(Default: 0)
Y6R
Counter value
=
ˆ
60°
=
ˆ
1/6 of the line supply periods [16 MHz]
NZG / 6
PA6.Y6R
→
PC6.X6R
(Default: 0)
XAS
Firing angle actual value [ASG]
PA6.XAS
→
PC6.XAS
(Default: 0.0)
NZG
Counter value
=
ˆ
line frequency (360°) [16 MHz]
(dependent on NCM)
(Default: 0)
{50Hz
=
320000}
{60Hz
=
384000}
TA
Time difference between the actual and last firing pulse [ms]
(Default: 0 ms)
AFP
Firing angle actual value [
°
]
(Default: 0.0)
AFI
Phase shift angle of the line supply filter ITDC-HW [
°
]
(
)
°
∗
=
60
tan
50
/
f
arctan
AFI
(e.g. f = 50Hz ,AFI =
60°)
(Default: 0.0)
AVW
Offset angular component in the firing angle actual value (refer to
XDA)
I
AF
-
30
XDA
AVW
°
+
=
(Default: 0.0)
YIT
Current conduction duration in the discontinuous range
(YIT <1
=
ˆ
discontinuous current, =1
=
ˆ
continuous current)
PA6.YIT
→
CPI.XIT
(Default: 0.0)
{ >0
…
1<}
YDA
Offset angle,
This is calculated from the zero crossovers of the synchronizing
voltage and the phase-to-phase line supply voltage. YDA should
be equal to XDA.
(Default: 0.0)
XFN
Measured line supply frequency [Hz]
=
f (NZG)
(Default: 0.0)
ZYA
Diagnostics: Status "Synchronous state machine"
(Default: 0)
ZDA
Diagnostics: Status "Rotating field state machine"
(Default: 0.0)
QSF
Fault
PA6.QSF
→
SOL.QSA
(Default: 16#0000)
Table 5-1
I/O PA6
