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Appendix E
Detailed CGCM-DLR Unit Tag Descriptions
232
Generator Overvoltage Outputs from CGCM Unit
• Ovr_V_Flt – This tag is used to communicate the occurrence of an
overvoltage Fault to the host Logix controller. When this tag is a 1, it
indicates that a fault has occurred. The tag is latched until the host Logix
controller resets it by setting the FltReset tag.
Inputs to CGCM-DLR Unit
• Undr_V_FltOutEn - When this tag is a 1 in the configuration, and an
undervoltage Fault occurs (as defined by the Undr_V_Setpt tag), the Fault
Relay is energized. When this tag is a 0 in the configuration, an
undervoltage Condition has no effect on the Fault Relay.
• Undr_V_Setpt - This tag configures the generator undervoltage setpoint
that the CGCM-DLR unit uses to recognize an undervoltage condition.
When the condition occurs, the CGCM-DLR unit starts timing toward a
trip.
• Undr_V_TimeDly - This setting establishes the time to trip the unit once
the generator Undervoltage setpoint has been exceeded.
• EngineIdle – Setting this tag to 1 enables Soft Start mode and disables the
under-frequency, undervoltage, and Loss of PMG protections until the
generator is at rated speed.
Generator Undervoltage Outputs from CGCM Unit
• Undr_V_Flt - This tag is used to communicate the occurrence of an
Undervoltage Fault to the host Logix controller. When this tag is a 1, it
indicates that a fault has occurred. The tag is latched until the host Logix
controller resets it by setting the FltReset tag.
Loss of Sensing Inputs to CGCM-DLR Unit
• LossSensingFltOutEn - When this tag is a 1 in the configuration, and a
Loss of Sensing Fault occurs the Fault Relay is energized. When this tag is a
0 in the configuration, a Loss of Sensing Condition has no effect on the
Fault Relay.
Loss of Sensing Outputs from CGCM Unit
• LossSensingFlt - This tag is used to communicate the occurrence of a Loss
of Sensing Fault to the host Logix controller. When this tag is a 1, it
indicates that a fault has occurred. The tag is latched until the host Logix
controller resets it by setting the FltReset tag.
Rockwell Automation Publication 1407-UM002B-EN-P - February 2019
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