1 function 1: nin1 = nin2, Function 1: nin1 = nin2, 17 function library – Lenze E84DSxxx User Manual
Page 722
17
Function library
17.1
Function blocks | L_Compare_1
722
Lenze · 8400 protec StateLine · Reference manual · DMS 4.2 EN · 03/2013 · TD05
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
17.1.10.1 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
to set the window within which the equality is to apply.
• Use
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
: Hysteresis
: Window
TRUE
FALSE
bOut
nIn2_a
nIn1_a
: Hysteresis
: Window
nIn1_a
nIn2_a
TRUE
FALSE
bOut
t
t