# Derivation element

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.

Adjustable parameters

Designation | Range | Default value |
---|---|---|

Derivation gain | 1 ... 1000 ms | 2 |

Time constant (PT1) | 0.01 ... 100 ms | 0.8 |