Allen-Bradley 1407-CGCM, User Manual, Page: 88 / 252

Rockwell Automation Publication 1407-UM001H-EN-P - November 2014
#HAPTER CGCM Unit Configuration
'AIN4AB
The Gain tab is used to configure the unit’s gain parameters necessary for the
operation of the excitation control. Except as otherwise noted, gain parameters
are unitless.
Appendix B provides additional information regarding the mathematical models
used in the unit.
The parameters in the Gain tab are stored in the Unscheduled Write table and are
not automatically written to the unit.
Refer to Chapter 6 for a discussion of user programming necessary to transfer
these parameters.
AVR/FCR Control
The AVR/FCR gains determine the response of the main control loop of the
voltage regulation function. The PID calculator software available in the Tools
folder on the RSLogix 5000 software installation CDs can be used to assist in
determining appropriate initial AVR gain settings for Kp, Ki, Kd, and Kg. These
settings can be fine tuned during system startup.
Please refer to Chapter 5 for more information on tuning the regulator gains.