Lenze 8400 - Control Functions

Lenze · 8400 HighLine · Reference manual · DMS 12.0 EN · 06/2017 · TD23 1468
17 Function library
17.1 Function blocks | L_PCTRL_1
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17.1.134.6 Control functions
The process controller has various digital inputs for controlling the FB:
Designator
Data type
Information/possible settings
bInAct
BOOL
Deactivate process controller temporarily (stop)
• Changes can be done online.
• Display parameter: C00833/76
Note: This input is not interconnected in the LA_NCtrl application block.
TRUE • The current output value is frozen.
• The internal control algorithm is stopped.
• However, a setpoint selected via input nNSet_a is still provided in
operating modes 0/1/4/5.
bIOff
BOOL
Switch off the I-component of the process controller
• Changes can be done online.
• Display parameter: C00833/77
TRUE The I component of the process controller is set to zero.
bPIDOff
BOOL
(from version 06.00.00)
Reset the entire PID controller
TRUE • The I component of the controller is set to zero.
• The controller output is set to zero.
• The internal control algorithm is stopped.