MTN6215-0410S_SW_EN_EU_2024_06_05

Switching PI Control (PWM)

With the switching PI control, also known as the PWM control, the control values calculated by the controller (0 – 100 %) are converted into a pulse-width modulation (PWM). Within a constant, defined cycle time, the control actuator is opened ("1") and then closed again ("0") for the calculated percentage period.

For example, when a control value of 25% is calculated for a cycle time of 12 minutes, a “1” is transmitted at the beginning of the cycle time, and a “0” is transmitted after three minutes (25% of 12 minutes).

When the setpoint temperature changes, the controller recalculates the required control value and transmits it in the current cycle (broken line).

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