Lenze 8400 - Manual (Page 1358)

18 Function library
18.1 Function blocks | L_PCTRL_1
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Lenze · 8400 protec HighLine · Reference manual · DMS 3.0 EN · 03/2013 · TD05
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18.1.133 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
Adaptation of gain Vp set in C00222 in percent
• Internal limitation to ± 199.99 %
• Changes can be done online.
• Display parameter: C00830/62
nNset_a
INT
Speed setpoint
• Scaling: 16384 ≡ 100 %
• Internal limitation to ± 199.99 %
• Display parameter: C00830/89
nSet_a
INT
Sensor and process setpoint for operating modes 2, 4 and 5
• Scaling: 16384 ≡ 100 %
• Internal limitation to ± 199.99 %
• Display parameter: C00830/63
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