ABB i-bus
KNX
Planning and application
SA/S | 2CDC 505 056 D0208 163
4.3.3
Pulse width modulation (PWM)
Should the SA/S receive a 1 byte control value as an input signal, it can use this value with the
parameterized cycle time and undertake a PWM calculation.
With PWM control, the received control value [
0…100 %] calculated in the control algorithm is converted to
a pulse width modulation.
The conversion is based on a constant cycle time. For example, if the SA/S receives a control value of
20 %, then for a cycle time of 15 minutes the valve will be opened for three minutes (20 % of 15 minutes)
and closed for 12 minutes (80 % of 15 minutes).
Summary of Contents for i-bus SA/S 2.6.2.1
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