Manual

102 Rockwell Automation Publication 1407-UM001G-EN-P - April 2013
Chapter 4 CGCM Unit Configuration
• Validate and graph button – Updates the graph shown on the Current tab
to display the selected over-current characteristic curve. The specific curve
selected by the over-current time dial setting is displayed in black.
Related Parameters
• GenRated_I
• GenRated_V
Frequency Tab
The Frequency tab is used to configure the CGCM unit parameters related to the
over-frequency and under-frequency protection functions.
• Over-frequency Setpoint - Establishes the generator over-frequency
setpoint. The tag OvrFreqSetpt in the configuration table stores this
parameter, expressed in Hz.
• Over-frequency Delay - Establishes the amount of time in seconds that the
frequency must be above the over-frequency setpoint before the CGCM
unit annunciates the fault. This parameter is stored in tag
OvrFreqTimeDly in the configuration table.
• Under-frequency Setpoint - Establishes the generator under-frequency
setpoint. The tag UndrFreqS etpt in the configuration table stores this
parameter, expressed in Hz.
• Under-frequency Delay - Establishes the amount of time in seconds that
the frequency must be below the under-frequency setpoint before the
CGCM unit annunciates the fault. This parameter is stored in tag
UndrFreqTimeDly in the configuration table.