IDEC SMARTRELAY User Manual page 197

Timing diagram
Functional description
The function fetches the analog values from the inputs Ax and Ay.
Ax and Ay are each multiplied by the value of the A (gain) parameter, and the value at
parameter B (offset) is then added to the relevant product, i.e.
(Ax gain)
(Ay gain)
The function forms the difference (
Output
thresholds. See the calculation rule below.
Calculation rule
If the On threshold
If the On threshold < Off threshold, then
Off.
Setting the Par parameter
The gain and offset parameters are used to adapt the sensors to the relevant application.
View in programming mode:
IDEC SmartRelay Manual
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offset actual value Ax or
offset actual value Ay.
is set or reset, depending on difference of the actual values Ax - Ay and the set
Off threshold, then
0 if (actual value Ax - actual value Ay)
) between the actual values Ax - Ay.
if (actual value Ax - actual value Ay)
Off.
1, if On (actual value Ax - actual value Ay) <
IDEC SmartRelay functions
4.4 Special functions list - SF
On or
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