Siemens D7-SYS, Manual

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Closed-loop thyristor current control
System- and communication configuring D7-SYS - SIMADYN D
5-13
Edition 06.2002
PA6. Significance Value\connection
AD Hardware address
SYX Mode: Synchronizing voltage source
(normally, phase L1 is used)
SYX=0: Internally via the SITOR interface (ITDC-X7:18,34)
SYX=1: Externally via connector (ITDC-X5:5)
(Initialization connection/
default: 0)
ZPA Firing pulse number
No. of the active main pulse for the active torque direction.
PC6.ZPA
→
PA6.ZPA
{ 1
…
6 }
XDA
Offset angle
of the specified angle corrects the phase shift between the natural
firing instant of semiconductor device 1 and
the zero crossover of the filtered synchronizing voltage (ITDC)
e.g. XDA=0.0
⇒
AVW = -30 [ ° ]
XDA=10.0
⇒
AVW = -20 [ ° ]
Offset angle and natural firing instant (
α
=0°):
(Default: 0.0)
{ -180°
…
+180° }
NAZ Number of failed line supply periods of the synchronizing voltage
until a signal is output
Condition: 0
≤
PA6.NAZ
≤
3050, otherwise, QSF\bit 9 = 1
(Initialization connection/
default: 8)
NEP Number of line supply periods until the system can be considered
to have stabilized and can be switched-on
Condition: 0
≤
PA6.NEP
≤
5000, otherwise, QSF\bit 9 = 1
(Initialization connection/
default: 5)
NCM Mode : Line supply handling (also refer to FAM connector)
Correction of the counter value of the line supply value (period
duration and phase) before the result is transferred to
FB-PC6.
0 = the line supply value is not handled
1 = refer to NCM=4
2 = the average value is generated from the last (max.8) line
supply values, the number of which is defined at FAM
3= line supply value fluctuation are corrected using the PLL
method (P controller). The phase difference is only taken into
account with 1/FAM.
4 = line supply value fluctuations are corrected using the PLL
method (PI controller). The phase difference is only weighted with
1/FAM and the last average with (FAM-1)/FAM.
(NCM > 0 is used for weak line supplies or if the synchronizing
voltage is polluted.
For single synchronizing voltage disturbances, the best suitable
setting is NCM=4 with FAM=20
…
40 )
(Default: 0)
{ 0
…
4 , >4= 0 }
FAM {
≥
1
…
<8 }
FAM {
≥
1
…≤
1000 }
FAM {
≥
1
…≤
1000 }
FAM For NCM=1: Refer to 4
For NCM=2: Number of saved line supply periods to generate the
average value
For NCM=3: Factor to reduce a measured phase difference
For NCM=4: Factor to reduce a measured phase step
(Default: 0)
{
≥
1
…
<8 }
{
≥
1
…≤
1000 }
{
≥
1
…≤
1000 }
I/O PA6