beautypg.com

6 control functions, 6 control functions 5, 18 function library – Lenze 8400 User Manual

Page 1365

background image

Lenze · 8400 protec HighLine · Reference manual · DMS 3.0 EN · 03/2013 · TD05

1365

18

Function library

18.1

Function blocks | L_PCTRL_1

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

18.1.133.6 Control functions

The process controller has various digital inputs for controlling the FB:

Identifier

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.