Allen-Bradley 1407-CGCM-DLR, Руководство пользователя, Страница: 96 / 268

96 Rockwell Automation Publication 1407-UM002B-EN-P - February 2019
Chapter 4 CGCM-DLR Unit Configuration
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Volts per Hertz Lower Slope - Establishes the rate at which the V/Hz
characteristic reduces the generator voltage as a function of generator
frequency below the Lower Knee Frequency setting. Tag
VperHz_LoSlope in the configuration table stores this value, expressed as
a number that reflects per unit change in voltage for each per unit change
in frequency.
•
The Validate and graph button becomes active when a parameter has been
changed. When clicked, the V/Hz curve established by the knee and slope
values is plotted in the Volts/Hz tab.
Related Parameters:
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GenRated_V
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GenRatedFreq
OEL Page
The OEL page is used to configure the unit settings that are related to operation
of the Over-excitation Limiting (OEL) function. The values that are entered on
this page establish the thresholds and time delays that determine the behavior of
the over-excitation limiting function. See the generator manufacturer data sheets
for information such as, exciter full-load and forcing current for setting both
online and offline conditions.
See Chapter 3 for more information on the operation of the OEL function.