The D element is a transfer element used in closed-loop control technology with a derivative response characteristic. The output signal/potential at output 2 depends on the rate of change of the input signal/potential at input 1. The D element is modelled as an actual D element in this case, also known as a derivative-action element, with first-order time delay, because an ideal D element is technically infeasible. Derivative-action coefficient Kd and delay time T can be adjusted. In order to keep circuit wiring as straightforward as possible, required earthing (0 V) and supply voltage are not led out as terminals, but rather wired internally.
|Derivation gain||1 ... 1000 ms||2|
|Time constant (PT1)||0.01 ... 100 ms||0.8|