Voltage bias, Voltage bias -6 – Winco DGC-2020 User Manual

Page 218

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7-6

DGC-2020 Maintenance and Troubleshooting

9400200990 Rev K

If the speed still does not change when varying the bias:

 Verify that the governor or ECU is equipped and configured to accept bias inputs.
 Check connections to verify the wiring to the governor bias is correct.
 If you have an engine with an ECU, check ECU programming to verify it is set up to

accept a speed bias input.

Engine Speed Decreases When Speed Bias is Increased

Step 1: Navigate to the SETTINGS->MULTIGEN MANAGEMENT->GOV ANALOG OUTPUT screen

and set SPD RESPONSE to DECREASING.

Engine Speed Increases When Speed Bias is Decreased

Step 1: Navigate to the SETTINGS->MULTIGEN MANAGEMENT->GOV ANALOG OUTPUT screen

and set SPD RESPONSE to DECREASING.

Voltage Bias

Generator Voltage Does Not Change When Voltage Bias Changes

Step 1: As a test, you can force a voltage on the AVR bias output by setting the Min Output Voltage

and Max Output Voltage to the same value by navigating to SETTINGS->MULTIGEN
MANAGEMENT->AVR ANALOG OUTPUT. If the bias is current based, you can force a fixed
current by setting the Min Output Current and Max Output Current to the same value by
navigating to SETTINGS->MULTIGENMANAGEMENT->AVR ANALOG OUTPUT.

If the voltage still does not change when varying the bias:

 Verify that the AVR is equipped and configured to accept bias inputs.
 Check connections to verify the wiring to the AVR bias is correct.
 If you have digital voltage regulator, verify it set up and programmed to accept a voltage

bias input.

Generator Voltage Decreases When AVR Speed Bias is Increased

Step 1: Navigate to the SETTINGS->MULTIGEN MANAGEMENT->AVR ANALOG OUTPUT screen

and set VOLT RESPONSE to DECREASING.

Generator Voltage Increases When Speed Bias is Decreased

Step 1: Navigate to the SETTINGS->MULTIGEN MANAGEMENT->AVR ANALOG OUTPUT screen

and set VOLT RESPONSE to DECREASING.

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