GE AF-650 GP Programming Manual page 173

PI-22 Process CL Feedback 2 Resource
Option:
[0] * No function
[1] Analog Input 53
3
[2] Analog Input 54
[3] Frequency input 29
[4] Frequency input 33
[7] Analog Input X30/11
[8] Analog Input X30/12
3.21.4 PI-3# Process PID Control
Parameters to configure the Process PID Controls.
PI-30 Process PID Normal/ Inverse Control
Option:
[0] * Normal
[1] Inverse
PI-31 Process PID Anti Windup
Option:
[0] Off
[1] * On
PI-32 Process PID Start Speed
Range:
0 RPM* [0 - 6000 RPM]
PI-33 Process PID Proportional Gain
Range:
0.01* [0.00 - 10.00]
PI-34 Process PID Integral Time
Range:
10000.00 s* [0.01 - 10000.00 s]
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Function:
The effective feedback signal is made up of the sum of up to two different input signals. Select which
frequency converter input should be treated as the source of the second of these signals. The first input
signal is defined in par. PI-20.
(OPCGPIO)
(OPCGPIO)
Function:
Normal and inverse control are implemented by introducing a difference between the reference signal
and the feedback signal.
Sets process control to increase the output frequency.
Sets process control to reduce the output frequency.
Function:
Ceases regulation of an error when the output frequency can no longer be adjusted.
Continues regulation of an error even when the output frequency cannot be increased or decreased.
Function:
Enter the motor speed to be attained as a start signal for commencement of PID control. When the power
is switched on, the frequency converter will commence ramping and then operate under speed open loop
control. Thereafter, when the Process PID start speed is reached, the frequency converter will change
over to Process PID control.
Function:
Enter the PID proportional gain. The proportional gain multiplies the error between the set point and the
feedback signal.
Function:
Enter the PID integral time. The integrator provides an increasing gain at a constant error between the
set point and the feedback signal. The integral time is the time needed by the integrator to reach the
same gain as the proportional gain.
AF-650 GP Programming Guide