Woodward easYgen-2000 Series User Manual page 277

ID Parameter
5514 Integral gain
5515 Derivative ratio
5560 Deadband
5561 Time pulse
minimum
37535B
CL Setting range Description
[Default]
Notes
If the gain is configured too high, the result is excessive overshoot/undershoot
of the desired value.
This parameter is only visible if load control (parameter
configured to "PID analog".
2 0.01 to 100.00 The integral gain identifies the I part of the PID controller.
[1.00] The integral gain corrects for any offset (between setpoint and process vari‐
able) automatically over time by shifting the proportioning band.
Reset automatically changes the output requirements until the process vari‐
able and the setpoint are the same.
This parameter permits the user to adjust how quickly the reset attempts to
correct for any offset.
Notes
The integral gain constant must be greater than the derivative time constant.
If the integral gain constant is too large, the engine will continually oscillate.
If the integral gain constant is too small, the engine will take too long to settle
at a steady state.
This parameter is only visible if load control (parameter
configured to "PID analog".
2 0.01 to 100.00 The derivative ratio identifies the D part of the PID controller.
[0.01] By increasing this parameter, the stability of the system is increased. The
controller will attempt to slow down the action of the actuator in an attempt to
prevent excessive overshoot or undershoot. Essentially this is the brake for
the process.
This portion of the PID loop operates anywhere within the range of the
process unlike reset.
Notes
This parameter is only visible if load control (parameter
configured to "PID analog".
The default configured controller acts like a PI controller what is the valid D
part setting for systems with secondary controllers.
1 0.10 to 9.99 % The generator load is controlled in such a manner, when paralleled with the
mains, so that the monitored load does not deviate from the configured load
[1.00 %]
setpoint by more than the value configured in this parameter without the con‐
troller issuing a raise/lower signal to the speed control.
This prevents unneeded wear on the raise/lower relay contacts. The config‐
ured percentage for the dead band refers to the generator rated active power
(parameter
Notes
This parameter is only visible if load control (parameter
configured to "3pos controller".
1 0.01 to 2.00 s A minimum pulse on time must be configured here.
[0.05 s] The shortest possible pulse time should be configured to limit overshoot of
the desired speed reference point.
easYgen-2200/2500 | Genset Control
Configure Application > Configure Controller > Load Control
1752 Ä p. 95).
Configuration
5525 Ä p. 276) is
5525 Ä p. 276) is
5525 Ä p. 276) is
5525 Ä p. 276) is
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