Winco DGC-2020 - Manual (Page 129)

Expected rpm reduction in droop - (actual load/machine capacity)  (droop percentage/100)  rated
speed.
If the actual rpm drop does not match the expected value, calculate the error by dividing the expected
drop by the actual drop, and putting the result in as the droop gain.
Ramp rate
T is defined as the rate, in percentage of machine capacity, at which the machine will ramp up
its real power when loading or coming online. The machine also uses this rate to unload prior to cooling
down. If a machine is the only machine online, ramping will not be in effect.
When User Setting is selected for the base load level source
U , the base load level setting V determines the
percent of machine capacity at which the kW controller will regulate if the generator is paralleled to the
utility. If paralleled to the utility, the Parallel to Mains logic element in BESTlogic+ must be driven by logic
or a contact input. If parallel to utility operation is undertaken and the Parallel to Mains logic element is
not implemented, the DGC-2020 will remain in kW load share and will either move toward operation at
100% of capacity or 0 capacity resulting in damage to the machine or system.
When the base load level source is configured for LSM-2020 input or an AEM-2020 input, the operating
KW controller set point is calculated based on the specific analog input. Parameters are available for
baseload analog max
W and baseload analog min X .
When the unit unloads, the generator breaker will open when the power generated by the unit falls below
the breaker open setpoint
Y .
Figure 4-53. Governor Bias Control Settings
A Bias Control Output Type: Contact or Analog.
B Bias Control Contact Type: Continuous or Proportional.
C Correction Pulse Width: Adjustable from 0 to 99.9 s in 0.1 s increments.
D Correction Pulse Interval: Adjustable from 0 to 99.9 s in 0.1 s increments.
E Proportional Gain (Kp): Adjustable from 0 to 1,000 in increments of 0.001.
F Integral Gain (Ki): Adjustable from 0 to 1,000 in increments of 0.001.
G
Derivative Gain (Kd): Adjustable from 0 to 1,000 in increments of 0.001.
H
Derivative Filter Constant (Td): Adjustable from 0 to 1 in increments of 0.001.
I Loop Gain (Kg): Adjustable from 0 to 1,000 in increments of 0.001.
J Speed Trim Enable: Enable or Disable.
K Speed Trim Setpoint: Adjustable from 47 to 440 Hz in 0.01 Hz increments.
L Load Control Enabled: Enable or Disable.
M Proportional Gain (Kp): Adjustable from 0 to 1,000 in increments of 0.001.
N Integral Gain (Ki): Adjustable from 0 to 1,000 in increments of 0.001.
O Derivative Gain (Kd): Adjustable from 0 to 1,000 in increments of 0.001.
9400200990 Rev K DGC-2020 BESTCOMSPlus Software 4-59