Lenze 8400 - Evaluation of the Output Signal

17 Function library
17.1 Function blocks | L_PCTRL_1
1467
Lenze · 8400 HighLine · Reference manual · DMS 12.0 EN · 06/2017 · TD23
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17.1.134.4 Evaluation of the output signal
After the limitation, the output signal is evaluated with the influencing factor nInfluence_a. The
evaluation is activated/suppressed along a ramp when the bEnableInfluenceRamp input is set to
TRUE. The ramp times are set with the parameters "Influence acceleration time" (C00243
) and
"Influence deceleration time" (C00244
).
17.1.134.5 Comparison function "Actual value = setpoint"
If setpoint and actual value are identical and there is no system deviation, the bSetEqAct status
output is set to TRUE.
• The hysteresis of the comparison function has a fixed value of 1 %.
• From version 06.00.00 onwards, the symmetrical window around the setpoint for the
comparison function can be set in C00247
(Lenze setting: 2 %).
[17-61] Comparison function: Switching performance
[17-62] Comparison function: Example
 Hysteresis (1 %, fixed value)
 C00247
: Window
TRUE
FALSE
bSetEqAct
Set value
Act value
 
 Hysteresis (1 %, fixed value)
 C00247
: Window
Act value
Set value
TRUE
FALSE
bSetEqAct
t
t



