GE AF-650 GP Programming Manual page 154

Parameter Descriptions
PI-07 Speed PID Feedback Gear Ratio
Range:
1 [0.0001 - 32.0000]
*
Illustration 3.48
PI-08 Speed PID Feed Forward Factor
Range: Function:
0 % [0 - 500 %] The reference signal bypasses the speed
*
controller by the amount specified. This
feature increases the dynamic performance
of the speed control loop.
PI-09 Speed PID Error Correction w/ Ramp
Range: Function:
300 RPM [10 - 100000 The speed error between ramp and
*
RPM] actual speed is held up against the
setting in this parameter. If the speed
error exceeds this parameter entry, the
speed error is corrected via ramping in
a controlled way.
Illustration 3.49 Speed Error between Ramp and Actual Speed
DET-618D
AF-650 GP™ Programming Guide
PI-10 Torque PI Feedback Source
Function:
Select the feedback source for the torque controller.
Option:
[0]
*
[1]
[2]
[3]
3.22.2 PI-1# Torque PI Control
PI-12 Torque PI Proportional Gain
Range:
100 %
PI-13 Torque PI Integration Time
Range:
0.020 s
PI-16 Torque PI Lowpass Filter Time
Enter the time constant for the torque control lowpass filter.
Range:
5 ms
*
PI-18 Torque PI Feed Forward Factor
Enter the torque feed forward factor value. The reference signal
bypasses the torque controller by this value.
Range:
0 %
*
PI-19 Current Controller Rise Time
Range:
100 %
3.22.3 PI-2# Proces PID Feedback
Parameters to configure the feedback sources for the
Process PID Control.
02/2016 All rights reserved.
Function:
Controller Off Select to operate in open loop.
Analog Input 53 Select to use torque feedback from the
analog input.
Analog Input 54 Select to use torque feedback from the
analog input.
Estimed Torque Select to use the torque feedback
estimated by the frequency converter.
Function:
[0 - 500 %] Enter the proportional gain value for the
*
torque controller. Selection of a high value
makes the controller react faster. Too high
a setting leads to controller instability.
Function:
[0.002 - 2 s] Enter the integration time for the torque
*
controller. Selection of a low value makes
the controller react faster. Too low a
setting leads to controller instability.
[0.1 - 100 ms]
[0 - 100 %]
Function:
[15 - 100 %] Enter the value for the rise time of the
*
current controller as a percentage of the
control period.
3
Function:
Function:
153
3