Lenze 8400 - Manual (Page 1185)

Lenze · 8400 protec HighLine · Reference manual · DMS 3.0 EN · 03/2013 · TD05
1185
18 Function library
18.1 Function blocks | L_Compare_1
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18.1.23.1 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.
[18-6] Function 1: Switching performance
[18-7] 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