7.5.2 Trim Operation
If within the trim window, the trim functionality is controlled by the maximum forward or backward trim
set by expansion option 40.6, and also by the PI settings in 41.1, 41.2 and 41.3. The ‘maximum
compensation’ set in expansion option 40.6 is the maximum percentage of the commissioned draft
servomotor angle to which the stack damper will trim negative or positive. See figure 7.5.2.i for a
graphical representation of example trim angles.
Figure 7.5.2.i Trim Angle
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