11 function library – Lenze 8400 BaseLine C User Manual
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Lenze · 8400 BaseLine C · Reference manual · DMS 1.6 EN · 01/2014 · TD05
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11
Function library
11.3
L_PCTRL_1
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Outputs
Parameter
bIOff
BOOL
Switch off I-component of process controller
• Changes can be done online.
TRUE I-component of the process controller is switched off.
nInflu_a
INT
Limitation of the influencing factor in percent
• nInflu_a serves to limit the influencing factor of the PID controller contained in
the FB to a required value (- 199.9 % ... + 199.9 %).
• Scaling: 16384 ≡ 100 %
• Internal limitation to ± 199.9 %
bEnableInfluenceRamp
BOOL
Activate ramp for influencing factor
TRUE Influencing factor of the PID controller is ramped up to the nInflu_a
value.
FALSE Influencing factor of the PID controller is ramped down to "0".
Identifier
Data type
Value/meaning
nOut_a
INT
Output signal
• Internal limitation to ±32767 (±199.9 %)
• Scaling: 16384 ≡ 100 %
bActEqSet
INT
Status output "Setpoint and actual value are identical"
TRUE Setpoint and actual value are identical, i.e. no system deviation avai-
lable.
nPIDOut_a
INT
PID controller output with influencing factor nInflu_a
• There is no connection with the additive input nNSet_a.
• Scaling: 16384 ≡ 100 %
Parameter
Possible settings
Info
0.1
500.0 Gain Vp
• Lenze setting: 1.0
20
ms
6000 Reset time Tn
• Lenze setting: 400 ms
0.0
5.0 Differential component Kd
• Lenze setting: 0.0
-199.9
%
+199.9 Maximum value of the PID operating
range
• Lenze setting: 199.9 %
-199.9
%
+199.9 Minimum value of the PID operating
range
• Lenze setting: -199.9 %
0.0
s
999.9 Acceleration time for the ramp at the
PID output (should be set as steep as
possible)
• Lenze setting: 0.1 s
0.0
s
999.9 Deceleration time for the ramp at the
PID output
• Lenze setting: 0.1 s
Identifier
Data type
Information/possible settings