BASE AS 4796757 - Caterpillar

Illustration 1 g01017530
(Y) Engine speed
(X) Time
(1) The "Governor (Proportional) Gain Percentage" is too high and the "Governor (Integral) Stability Percentage" is too low. There is a large overshoot on start-up and there are secondary overshoots on transient loads.
(2) The "Governor (Proportional) Gain Percentage" is slightly high and the "Governor (Integral) Stability Percentage" is slightly low. There is a slight overshoot on start-up but the response to transient loads is optimum.
(3) The "Governor (Proportional) Gain Percentage" is slightly low and the "Governor (Integral) Stability Percentage" is slightly high. There is optimum performance on start-up but slow response for transient loads.
(4) The "Governor (Proportional) Gain Percentage" is too low and the "Governor (Integral) Stability Percentage" is too high. The response for transient loads is too slow.
(5) The response to transient loads is adjusted for optimum performance. Governor Type
Use Cat ET to select the "Governor Type Setting" configuration parameter.For generator set applications, there are two sets of responses for the throttle actuator. The "Isochronous Mode" is used to provide "off grid" engine stability for synchronization. The "Droop Operation" is for "on grid" stability. Adjustment to the settings for the throttle actuator relates to both of the responses.