
Control Block Description
ADDvantage-32 PLUS
4-40
4.27 DERIVATIVE GAIN (D/DT)
The D/DT block performs a derivative gain function. It can be used for inertia
compensation.
FIGURE 4-27. DERIVATIVE GAIN BLOCK
1. Inputs
INP: Analog
GAIN: Analog
LP: Analog
2. Outputs
OUT: Analog
3. Implementation
INP goes through a third order low pass filter with time constant LP in seconds. This
filters amplification of high frequency bounce.
OUT = (Rate of change of filtered INP) × GAIN
TIME
GAIN
OUT
INP
DGAINDDT
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