Allen-Bradley 1407-CGCM, User Manual, Page: 215 / 252

Rockwell Automation Publication 1407-UM001H-EN-P - November 2014
Detailed CGCM Unit Tag Descriptions !PPENDIX %
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HardwareExcEned – This tag reports the state of the Excitation Input
[EX-D(+), EX-D(-) terminals on Terminal Block TB7]. Field excitation is
disabled when this bit is in a 0 state.
•
SoftwareExcEned – This tag reports the state of the SoftwareExcEn tag.
•
ExcOut – This tag reports the state the CGCM unit is commanding the
excitation output to take.
•
SetptTraverseActive - This tag indicates when the CGCM unit is
traversing between an internal tracking setpoint establish by the internal
tracking function and the final setpoint provided by the schedule write
data. Traversing occurs when switching from the active Regulation mode
and any of the other regulating modes.
!62-ODE
This section describes the AVR mode inputs and outputs for the CGCM unit.
!62-ODE)NPUTSTOTHE#'#-5NIT
The AVR mode contains these inputs:
•
AVR_FCR_Select – This tag lets you select AVR or FCR control.
•
AVRSetpt – This tag sets the desired voltage setpoint for operation in the
AVR control mode.
•
AVR_FCR_Kp - This tag sets the Proportional Gain parameter for AVR
and FCR control modes.
•
AVR_FCR_Ki – This tag sets the Integral Gain parameter for AVR and
FCR control modes.
•
AVR_FCR_Kd - This tag sets the Derivative Gain parameter for AVR and
FCR control modes.
•
AVR_FCR_Td – This tag sets the filtering Time Constant for AVR and
FCR control modes.
•
AVR_Kg - This tag lets you adjust coarse loop gain and overall gain of the
AVR operating mode. It also determines the characteristic of the dynamic
response to a change in the voltage of the generator.
•
AVR_Traverse_Rate - This parameter determines the time measured in
seconds for the setpoint to move from zero to the rated generator voltage.
If determines how fast the regulator changes the voltage setpoint from the
tracking value to the operating setpoint when the Regulator Operating
mode changes to AVR.
•
AVR_FCRAuxGain - This tag lets you to adjust the overall gain of the
auxiliary input’s control on the AVR/FCR operating mode. The units for
this are percent of nominal per volt. A setting of one results in the
controlled parameter being changed by one percent of the nominal value
for each volt applied to the auxiliary input.