
Closed-loop thyristor current control
System- and communication configuring D7-SYS - SIMADYN D
5-47
Edition 06.2002
Displays the control of the hardware register on the ITDC module
ZAH
Signal/message
Bit 1
Torque direction M1 enabled
Bit 2
Torque direction M2 enabled
Bit 3
Second pulses enabled
Bit 4
Operation: Double firing enabled
Bit 5
Pulse inhibit for undervoltage (refer to selection, SOL.UNM)
Bit 6
Pulse chains activated
Bit 7
Logical 0
Bit 8
Int./ext. synchronizing voltage (0/1),
(relay changeover of the inputs)
Bit 9-16
Logical 0
Table 5-12
Control word, hardware (ZAH)
5.2.9 FCS, field current setpoint output
Hardware address
Rated field rectifier current
Field current
Normalization
Field on
Field off
Field setpoint
Enable
Option: Field present
Establish field
GV
R
R
R
BO
BO
R
BO
BO
SD
AD
RRC
ARC
NF
ION
IOF
FC
EN
IE
T
FCS
QON
QEO
TA
ZVA
QSF
BO
BO
TF
I
W
On command, delayed
On command, instantaneous
Sampling time, configured [ms]
Diag.:Status
Fault
Fig. 5-26
FCS represented in CFC
The function block FB FCS (Field Current Setpoint) is used to enter the
field current setpoint for the excitation option and implements the
sequence control to switch-in and switch-out the motor excitation and the
closed-loop current control as well as a fault logic.
The switch-over logic stage to the system software is moved from FB
SOL to FB FCS in order to take into account field built-up in the control.
The optional field device for the Sitor set is a single-phase "half-
controlled" rectifier (B2HKFU) and requires a field current setpoint
PC6.FC
≥
0. Negative values are set to zero and result in a configuring
error.
Control word,
hardware (ZAH)
Function