Process controller
Switching off process controller functions
10
Function library
10.10
10.10.4
L
10.10-7
EDS82EV903-1.0-11/2002
The actual process controller value (PCTRL1-ACT)must be linked with an analog
input signal under C0412/5.
Use C0051 to display the current actual process controller value.
)
))
) Note!
If you do not link an analog input signal with the actual process
controller value under C0412/5, the actual process controller
value can be directly selected under C0051.
10.10.4 Switching off process controller functions
Process controller switch-off (PCTRL1-OFF)
The process controller output does not send signals as long as this function is
active.
The function must be linked with a digital input signal under C0410/19.
HIGH level at C0410/19 activates the function.
)
))
) Note!
In addition to the free configuration under C0410 you can also use
the fixed assignment under C0007 to combine the function with a
digital input.
Process controller stop (PCTRL1-STOP)
The process controller output value is frozen when the function is activated. The
value remains unchanged as long as the function is not active.
The function must be linked with a digital input signal under C0410/21.
HIGH level at C0410/21 activates the function.
Integral action component switch-off (PCTRL1-I-OFF)
The process controller output sends the difference between setpoint and actual
value, if necessary use gain V
P
.
l Thus overcontrolled starting and stopping can be avoided. When the
controller is operating normally, the integral action component K
I
can be
connected.
l Application: e.g. dancer position control
Activation
Process controller switch-off
Activation
Process controller stop
Activation
Integral action component
switch-off
To Next Page
Loading...