Closed-loop thyristor current control
System- and communication configuring D7-SYS - SIMADYN D 5-45
Edition 06.2002
PC6. Significance Value\connection
AD
Hardware address
LDP Selects the firing pulse waveform:
LDP = 0: 7kHz pulse chains,
LDP = 1: Long pulses
7kHz is required for all Sitor converters.
(Initialization connection/
default: 0)
LDU Absolute inverter (INV) control limit [°]
Condition: 90
≤ PC6.LDU ≤ 180, otherwise, QSF\bit 9 =1
(180° is a theoretical value. The free-wheeling, pulse
cancellation time and the overlapping due to the commutation
must be taken into account.)
(Initialization connection/
default: 150)
LDL Absolute rectifier (RECT.) control limit [°]
Condition: 0
≤ PC6.LDL ≤ 90, otherwise, QSF\bit 9 = 1
(The limit should lie symmetrically around 90° to the inverter
control limit.)
(Initialization connection/
default: 30)
LMP Main pulse length [ms]
Conversion into degrees according the line frequency f:
ms05.0LMP][360
3
10[Hz] f[ms] LMP][ LMP
≥⇒°∗
−
∗∗=°
If the configured value is lower, LMP is limited to 50 µs.
(Default: 1.1ms)
{ < 45[
°] el. }
LFP
Second pulse length [ms]
We recommend that the value = LMP should be kept.
(handled according to connection LMP)
(Default: 1.1ms)
{ < 45[
°] el. }
CTH Firing pulse output, time value
(the value changes in each cycle)
PA6.CTH
→ PC6.CTH
CTS
Time value at the start of FB-PA6
(the value changes in each cycle)
PA6.CTS
→ PC6.CTS
EN
Firing angle controller enable is realized,
if Vsyn. and line supply = ok
PA6.RDY
→ PC6.EN
X6R
Numerical value =
ˆ
60° of the line supply period [16 MHz]
(50 Hz
=
ˆ
320000[1])
PA6.Y6R
→ PC6.X6R
{ 2
21
}
XAS
Firing angle actual value [ASG]
PA6.XAS
→ PC6.XAS
{-1...0...+1}
WAS
Firing angle setpoint [ASG]
CPI.Y
→ PC6.WAS
AQL Test operation: Firing angle setpoint [°]
Input limited with LDL
≤ AQL ≤ LDU
The transferred firing angle is directly executed!
Enter small changes in order to avoid overcurrents.
(Default: 150)
AWS Shift to INV operation: Firing angle setpoint [°]
This angle becomes setpoint with signal SOL.QPI. The current
controller is disabled.
Condition: 90
≤ AWS ≤ 180, otherwise, QSF\bit 9 = 1
(Initialization connection/
default: 150)
DAG Max. angular change/sampling cycle in the direction of rectifier
operation
Condition: 0
≤ PC6.DAG ≤ 180, otherwise, QSF\bit 9 = 1
(Initialization connection/
default: 60)
DAW
Max. angular change/sampling cycle in the direction of inverter
operation
Condition: 0
≤ PC6.DAW ≤ 180, otherwise, QSF\bit 9 = 1
(Initialization connection/
default: 150)
I/O
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