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Troubleshooting DGC-2020HD
Figure 9-10. Kla Too Low – Frequency Recovery Improved with ~2 Hz Deviation
Tla Washout Filter Constant may be too low. GOV output decays rapidly before speed dip has finished.
See Figure 9-11. Navigate to Settings, Bias Control Settings, Governor Bias Control Settings and
increase Load Anticipation, Tla Washout Filter Constant.
Figure 9-11. Tla Too Low Causing Poor Recovery
Voltage Bias
Generator Voltage Does Not Change When Voltage Bias Changes
As a test, you can force a fixed voltage on the AVR bias output by setting the Min Output Voltage and
Max Output Voltage to the same value by navigating to Settings, Programmable Outputs, Analog Output
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