ABB i-bus
KNX
Planning and application
142 2CDC 505 056 D0208 | SA/S
4.1.1
Threshold
function with current detection
The current detection function features two independent thresholds.
The detected current value will fluctuate by about 20 mA due to the necessary analog/digital conversion of
the detected load current. To avoid a continuous change of the threshold value state, the thresholds for
current recognition feature a hysteresis function. The width of the hysteresis band is determined by the
parameterizable hysteresis threshold.
Example
Hysteresis curve, parameterization:
overshoot 1 – undershoot 0
Should the upper hysteresis threshold be overshot or the lower hysteresis threshold undershot, the value
of communication object
Status Current-Threshold x
is modified and sent via the bus.
Содержание i-bus SA/S 2.6.2.1
Страница 1: ...ABB i bus KNX SA S Switch Actuators Product Manual ...
Страница 137: ......