Danfoss VLT AutomationDrive FC 301 Programming Manual page 106

Parameter Descriptions
7-07 Speed PID Feedback Gear Ratio
Range:
1 [ 0.0001 -
*
32.0000 ]
3 3
Illustration 3.45 Speed PID Feedback Gear Ratio
7-08 Speed PID Feed Forward Factor
Range:
0 % [0 - 500
*
%]
7-09 Speed PID Error Correction w/ Ramp
Range:
300 RPM [10 -
*
100000
RPM]
Motor
Speed
Torque
Limit
Motor
Speed
Torque
Limit
Ramp
Illustration 3.46 Speed Error between Ramp and Actual Speed
104
Function:
The frequency converter multiplies the
speed feedback by this ratio.
n1
Motor
Par 7-07=1.00
Function:
The reference signal bypasses the speed
controller by the amount specified. This
feature increases the dynamic performance of
the speed control loop.
Function:
The speed error between ramp and
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.
7-09
Time
7-09
Time
Motor Speed
®
VLT AutomationDrive FC 301/302 Programming Guide
3.9.2 7-1* Torque PI Control
Parameters for configuring the torque PI control in torque
open loop (1-00 Configuration Mode).
7-12 Torque PI Proportional Gain
Range:
100 %
*
n2
7-13 Torque PI Integration Time
Range:
0.020 s
*
Par 7-07=n1/n2
7-19 Current Controller Rise Time
Range:
Size related
3.9.3 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:
[0] No function
*
[1] Analog Input 53
[2] Analog Input 54
[3] Frequency input 29
[4] Frequency input 33
[7] Analog Input X30/11
[8] Analog Input X30/12
[15] Analog Input X48/2
7-22 Process CL Feedback 2 Resource
Option:
MG33MH02 - Rev. 2013-09-30
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 Enter the integration time for the torque
s] controller. Selection of a low value makes
the controller react faster. Too low a
setting leads to control instability.
Function:
[15 - 100 Enter the value for the rise time of the
*
%] current controller as a percentage of
the control period.
Function:
The effective feedback signal is made
up of the sum of up to 2 different
input signals.
Select which frequency converter
input should be treated as the source
of the first of these signals. The
second input signal is defined in
7-22 Process CL Feedback 2 Resource.
Function:
The effective feedback signal is made
up of the sum of up to 2 different
input signals. Select which frequency
converter input should be treated as