39 l_pctrl_1, E the, L_pctrl_1 – Lenze 8400 StateLine User Manual
Page 972: Block, L_pctrl, 17 function library
17
Function library
17.1
Function blocks
972
Lenze · 8400 StateLine · Reference manual · DMS 12.0 EN · 06/2014 · TD05/TD14
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17.1.39
L_PCTRL_1
This FB is a PID controller and can be used for various control tasks (e.g. as dancer position controller,
tension controller, or pressure controller).
The FB is provided with the following functions:
• Adjustable control algorithm (P, PI, PID)
• Ramp function generator for preventing setpoint step-changes at the input
• Limitation of the controller output
• Factorisation of the output signal
• Vp adaptation
• Integral action component can be switched off
• Comparison function "Actual value = setpoint"
Inputs
Identifier
Data type
Information/possible settings
nAdapt_a
INT
Percentage adaptation of the gain Vp set in
and the reset time Tn set in
Then, the adapted reset time is as follows:
• Internal limitation to ± 199.99 %
• Changes can be done online.
nNset_a
INT
Speed setpoint
• Scaling: 16384 ≡ 100 %
• Internal limitation to ± 199.99 %
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Tn
Vp
C222
nAdapt_a [%] Tn
C223
[ms]
⋅
⋅
100 [%]
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