Siemens SIMADYN D Manual page 502

Closed-loop thyristor current control
NOTE
Setting the
field current
5-62
• External via terminal X102:3. In this case, switch -A1-S217 should be
opened from setting 1/3 (factory setting), as otherwise the voltages
would be connected.
When entering the current setpoint from SIMADYN D, switch -S217
(SITOR set) must be in the 1/3 setting (factory setting).
In order to operate the field controller from SIMADYN D using FB FCS,
input FCS.IE should be set to "1".
The parameters for the field current controller on the electronics board
are set by the manufacturer and are therefore permanent.
• The current, specified on the motor rating plate for the field excitation
should be set using the setpoint at FCS.FC.
A clip-on ammeter is the safest way to check that the field current is
actually flowing.
• The time to establish the field should be specified with an additional
safety margin at FCS.T. The closed-loop armature current control is
only switched-in after the field has been established and this time has
expired.
System- and communication configuring D7-SYS - SIMADYN D
Edition 06.2002