Lenze 8400 StateLine - Manual (Page 922)

17 Function library
17.1 Function blocks
922
Lenze · 8400 StateLine · Reference manual · DMS 12.0 EN · 06/2014 · TD05/TD14
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
17.1.11.1 Function 1: nIn1 = nIn2
This function compares two signals with regard to equality. It can, for instance, provide the
comparison "actual speed equals setpoint speed " (n
act
= n
set
).
• Use C00682 to set the window within which the equality is to apply.
• Use C00681 to set a hysteresis if the input signals are not stable and the output oscillates.
[17-4] Function 1: Switching performance
[17-5] Function 1: Example
 C00681 : Hysteresis
 C00682 : Window
TRUE
FALSE
bOut
nIn2_a nIn1_a
Œ  Œ 
 C00681 : Hysteresis
 C00682 : Window
nIn1_a
nIn2_a
TRUE
FALSE
bOut
t
t
Œ


Œ