Lenze 8400 motec - Manual (Page 503)

Lenze · 8400 motec · Reference manual · DMS 4.1 EN · 08/2013 · TD05 503
13 Application examples
13.1 Sequence control
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Process controller  L_PCTRL_1
C00222 L_PCTRL_1: Vp 1.0 Note!
Adapt control mode of the PID process
controller to the concrete application!
C00223 L_PCTRL_1: Tn 1000 ms
C00224 L_PCTRL_1: Kd 0.0
C00225 L_PCTRL_1: MaxLimit 105.0 % Maximum level of pump 1.
C00226 L_PCTRL_1: MinLimit 0.0 % No reversal of direction of the pump.
C00242 L_PCTRL_1: Operating mode 2: PID as setpoint
generator.
As PID input values, the process setpoint
(nSet_a) and the actual process value
(nAct_a) are used.
The speed setpoint (nNSet_a) is not con-
sidered.
C00700/7 LA_NCtrl: nPIDActValue_a 10: AIn1_Out The actual process value (nAct_a) is de-
tected via the analog input 1.
(Actual process value = current water lev-
el)
C00700/9 LA_NCtrl: nPIDSetValue_a 20: nPar1_a The process setpoint (nSet_a) is defined
via the free parameter C00472/1 .
C00472/1 LS_ParFree_a: Value 1 70.0 % Selection of the process setpoint.
(Process setpoint = desired water level)
GP function "Analog comparison"  L_Compare_1
C00680 L_Compare_1: Fct. 6: |In1| < |In2| Comparison operation:
| C00472/2 | < |Actual speed value|
C00681 L_Compare_1: Hysteresis 95.0 % Hysteresis for comparison
C00700/13 L_Compare_1: nIn1_a 21: nPar2_a The comparison value 1 is selected via
the free parameter C00472/2 .
C00700/14 L_Compare_1: nIn2_a 52: LA_NCtrl_
nMotorSpeedAct_a
Comparison value 2 is the actual speed
value.
• 100 % ≡ reference speed ( C00011 )
C00472/2 LS_ParFree_a: Value 2 100.0 % Selection of the comparison value 1.
GP function "Binary delay element"  L_DigitalDelay_1
C00720/1 L_DigitalDelay_1: On delay 30 s Switch-on delay for pump 2
C00720/2 L_DigitalDelay_1: Off delay 120 s Switch-off delay for pump 2
C00701/23 L_DigitalDelay_1: bIn 215:
L_Compare1_bOut
Input value of the delay element is the re-
sult of comparison.
Parameter Info Setting Info