Rockwell Automation Publication 1407-UM002B-EN-P - February 2019
103
CGCM-DLR Unit Configuration
Chapter
4
Other Gains
The remaining three gains are stored in the Configuration table and can only be
written to the CGCM-DLR unit when excitation is disabled.
•
AVR/FCR Control Auxiliary Gain - Sets the influence of the auxiliary
input on the AVR/FCR operating setpoint. The units are percent of rated
generator voltage or excitation field current, as applicable, per auxiliary
input volt. The tag
AVR_FCRAuxGain
in the Configuration table stores
this parameter.
•
PF/VAR Auxiliary Gain - Sets the influence of the auxiliary input on the
VAR/PF operating setpoint. The units for the VAR controller are percent
of rated generator KVA. For PF control, the units are 0.01 PF per volt. A
setting of 5 results in the regulated PF changing by 0.05 for each volt
applied to the auxiliary input. The tag
PF_VARAuxGain
in the
Configuration table stores this parameter.
•
Cross-current Gain - sets the gain of the cross-current input. The measured
cross-current value is multiplied by this setting. This setting determines the
change in voltage setpoint that is expressed in percent of rated voltage for a
change in kVAR equal to the rated generator kVA. This parameter adjusts
the characteristic of VAR sharing between machines that are connected in
the cross-current compensation method of VAR sharing. A setting of 5, for
example, results in the voltage setpoint changin by 5% of rated voltage for a
change in kVAR equal to the rated kVA. The tag
CrossCurrentGain
in the
Configuration table stores this parameter.
Related Parameters
•
GenRated_V
•
GenRated_I
•
GenRatedExcI