7-06 Speed PID Lowpass Filter Time
Range:
Function:
Encoder PPR
Parameter 7-06 Speed
PID Lowpass Filter Time
512
10 ms
1024
5 ms
2048
2 ms
4096
1 ms
0.6
0.6
f
g
= 10 Hz
175ZA293.11
Feedback
Disturbed feedback signal
t (Sec.)
t (Sec.)
Filtered feedback signal
Lowpass filter
Feedback
Illustration 4.20 Feedback Signal
7-07 Speed PID Feedback Gear Ratio
Range:
Function:
1
*
[0.0001 - 32 ]
Par 7-07=1.00
Par 7-07=n1/n2
130BA871.10
Motor
n1
n2
Illustration 4.21 Speed PID Feedback Gear
Ratio
7-08 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.
4.8.2 7-1* Torque PI Control
Parameters for configuring the torque PI control.
7-12 Torque PID Proportional Gain
Range:
Function:
100 %
*
[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.
7-13 Torque PID Integration Time
Range:
Function:
0.020 s
*
[0.002 - 2 s] Enter the integration time for the torque
controller. The lower the integration time,
the faster the controller reacts. However,
too low a setting leads to controller
instability.
4.8.3 7-2* Process Ctrl. Feedb.
Select the feedback sources for the process PID control,
and how this feedback should be handled.
7-20 Process CL Feedback 1 Resource
Option:
Function:
The effective feedback signal is made up
of the sum of up to 2 different input
signals. Select which input is treated as
the source of the first of these signals.
The second input signal is defined in
parameter 7-22 Process CL Feedback 2
Resource
.
[0]
*
No function
[1]
Analog Input 53
[2]
Analog Input 54
[3]
Frequency input
29
[4]
Frequency input
33
7-22 Process CL Feedback 2 Resource
Option:
Function:
The effective feedback signal is made up
of the sum of up to 2 different input
signals. Select which input is treated as
the source of the second of these signals.
The first input signal is defined in
parameter 7-20 Process CL Feedback 1
Resource
.
[0]
*
No function
[1]
Analog Input 53
[2]
Analog Input 54
[3]
Frequency input
29
Parameter Descriptions
Programming Guide
MG06C602
Danfoss A/S © 7/2015 All rights reserved.
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