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Chapter 4
CGCM-DLR Unit Configuration
104
Tracking Page
The Tracking page is used to configure the unit internal and redundant tracking
parameters. Enter the internal tracking, redundant tracking, and traverse rates in
the appropriate fields of the Tracking page.
Internal Tracking
• Enable internal tracking - This checkbox sets the Boolean tag
Internal_Tracking_En in the Configuration data table. When the value
of this tag is 1, internal tracking between voltage regulating modes is
enabled and the Traverse Rates are enabled. If the tag value is 0, both the
Traverse Rates and tracking between regulation modes are disabled.
• Internal Tracking Rate - This setting changes the rate at which the internal
tracking function matches the non-active excitation control modes to the
active excitation control mode. The value of the InternalTrackRate tag in
the Configuration table, expressed in seconds, is set.
• Internal Tracking Delay - This setting adjusts the delay in the internal
tracking function. The value of the InternalTrackDelay tag in the
Configuration table, expressed in seconds, is set. Its purpose is to reduce
the likelihood that the short-term response of the active regulating mode
to an upset is transferred to a new mode of operation when the mode is
switched. If the internal tracking delay is too short, the transient response
to an upset is transferred to the new operating mode. Conversely, if the
tracking delay is set too long, there is a risk of an old operating point being
transferred to the new operating mode, which results in an undesirable
bump.
Rockwell Automation Publication 1407-UM002B-EN-P - February 2019
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