
Control Block Description
ADDvantage-32 PLUS
4-59
4.40 LEAD/LAG
LEAD COMPENSATION is added to a control loop to improve rise time and the
damping. The disadvantage of LEAD COMPENSATION is that it adds instability to the
system by increasing high frequency closed loop gain.
LAG/LEAD is added to a control loop to improve overshoot and relative stability. The
disadvantage of LAG COMPENSATION is that it results in a lower rise time.
FIGURE 4-40. LEAD LAG BLOCK
1. Inputs
INP: Analog
LEAD: Analog
LAG: Analog
2. Outputs
OUT: Analog
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