Configuratron
5-37
5.8.4 Feedfotward Control (AOI)
Function FCODE Option No Default Selected
VakZ W?.lUG!
Forced 112 Disabled 0 0
Output Dll, applies in Auto/Manual 1
Control Dl2, applies in Auto/Manual 2
Dll, applies in Auto only
3
DIZ, applies in Auto only
4
Use FCODE 19 to set the
required output signal
A01 for forced
control in the range O-100 percent.
Function Parameters FCODE Range Unit Increment Default Selected
Value Value
Forced Output Signal 19 o-1 00 %. 1% 0
Control
(A01 )
If a three-state pulse output is used, actuator
position feedback is required.
The analog input signal at Al3 or Al4 can be amplified and added to
the output signal at A01 This function can be used to eliminate a
measurable incoming disturbance before it has time to influence the
process value.
The feedforward function sums the PID output signal with either Al3
or A14. To apply the feedforward function, select the optional
amplification of the analog signal at Al3 or Al4, and sum the amplified
signal with A01 , using FCODE 115.
May 1997
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