2 function 2: nin1 > nin2, 12 function library – Lenze 8400 motec User Manual
Page 461
Lenze · 8400 motec · Reference manual · DMS 4.1 EN · 08/2013 · TD05
461
12
Function library
12.5
L_Compare_1
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12.5.2
Function 2: nIn1 > nIn2
This function serves, for instance, to implement the comparison "actual speed is higher than a limit
value" (n
act
> n
x
) for one direction of rotation.
[12-10] Function 2: Switching performance
Functional sequence
1. If the value at nIn1_a exceeds the value nIn2_a, bOut changes from FALSE to TRUE.
2. Only if the signal at nIn1_a falls below the value of nIn2_a - hysteresis again, bOut changes back
from TRUE to FALSE.
[12-11] Function 2: Example
TRUE
FALSE
bOut
nIn2_a
nIn1_a
nIn1_a
nIn2_a
TRUE
FALSE
bOut
t
t