IDEC SMARTRELAY User Manual page 194

IDEC SmartRelay functions
4.4 Special functions list - SF
Timing diagram B: Function with positive difference
Functional description
The function fetches the analog signal at input Ax.
Ax is multiplied by the value of the A (gain) parameter, and the value at parameter B (offset) is
added to product, i.e. (Ax gain)
Output
function automatically calculates the Off parameter: Off
or negative. See the calculation rule below.
Calculation rule
the actual value Ax
See the timing diagram A.
1, if On
See the timing diagram B.
Setting the Par parameter
The gain and offset parameters are used to adapt the sensors to the relevant application.
View in programming mode (example):
View in parameter assignment mode (example):
182
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is set or reset, depending on the set (On) threshold and difference value ( ). The
hen you set a negative differential value , the On threshold
On or
hen you set a positive differential value , the On threshold < the Off threshold, and
actual value Ax < Off.
offset actual value of Ax.
On
0 if the actual value Ax
, whereby may be positive
Off threshold, and
Off.
IDEC SmartRelay Manual
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