ABB i-bus
®
KNX
Planning and application
250 2CDC508134D0202 | FCA/S 1.x.x.1
Example:
When the device receives a 1 byte control value (continuous control) as an input signal, this value together
with the parameterized cycle time from a PWM calculation is converted into a signal for a 2-point control
(ON-OFF-ON).
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. If the device for example,
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).
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