Siemens D7-SYS - Page 490

Closed-loop thyristor current control
5-50 System- and communication configuring D7-SYS - SIMADYN D
Edition 06.2002
FCS. Significance Value\connection
AD
Hardware address
RRC
Rated field current - rectifier [A]
Condition: RRC
≥ ARC ≠ 0, otherwise, QSF\bit 12 = 1
(Initialization connection/
default: 0.0)
ARC
Rated field excitation current of the DC motor [A]
Condition: RRC
≥ ARC ≠ 0, otherwise, QSF\bit 12 = 1
(Initialization connection/
default: 0.0)
NF Normalization factor to interpret the setpoint
NF= 1 (FC=1 [1]
=
ˆ
rated excitation current =ARC)
NF=ARC (FC=ARC [A]
=
ˆ
rated excitation current =ARC)
(Initialization connection/
default: 1.0)
ION On command, field current
a positive edges switches through the field setpoint,
if IE and EN = 1 and IOF = 0
(Default: 0)
IOF
Switches-out the field setpoint output after time T
and resets QON
(Default: 0)
FC
Field current setpoint is output at analog output 2
Observe the normalization!
Condition: FC
≥ 0, otherwise, QSF\bit 12 = 1
(Default: 0)
EN
Enables inputs ION, IOF
With EN=1 and IE=1, the current setpoint input is enabled.
With EN=0, the field is reduced, as for ION=1
(Default: 0)
IE
Option: Field present
If IE = 0, setpoint = 0 [V] is permanently output.
A switch-on command ION=1
⇒ QON=1, instantaneously
(Default: 0)
T
Delay time when switching-in and when switching-out,
if the option IE=1 is acknowledged.
QON is output, delayed by time T. This means that the switch-
over logic stage is only switched-in when the field has been
established.
QEO is only reset after time T when switching-out.
Condition: 0
≤ T ≤ 100000 ms, otherwise, QSF\bit 12 = 1.
(Initialization connection/
default: 1500 ms)

QON
Outputs the on command ION=1,
for IE=1, QON is set, delayed by time T
QON is reset 1 cycle after the switch-out command (ION=0 or
IOF=1).
FCS.QON
→ SOL.ION
(Default: 0)
QEO
Setpoint output checkback signal (only for IE=1)
The output is only reset after time T has expired.
(Default: 0)
TA
Diagnostics: Configured sampling time (Default: 0 ms)
ZVA
Diagnostics: Status "Field state machine” (Default: 0)
QSF
Fault
FCS.QSF
→ SOL.QSS
(Default: 16#0000)
Fig. 5-29 I/O FCS
I/O