Danfoss VLT AutomationDrive FC 300 Series Programming Manual page 102

Parameter Descriptions
7-07 Speed PID Feedback Gear Ratio
Range:
1.0000 [ 0.0001 - 32.0000 ]
*
Par 7-07=1.00
Illustration 3.46
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.
7-09 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 will be corrected via
ramping in a controlled way.
Motor
Speed
7-09
Torque
Time
Limit
Motor
Speed
7-09
Torque
Limit
Time
Ramp
Motor Speed
Illustration 3.47
®
VLT AutomationDrive Programmming Guide
Function:
n1 n2
Motor
Par 7-07=n1/n2
®
MG33ME02 - VLT is a registered Danfoss trademark
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: 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 PI Integration Time
Range: Function:
0.020 s [0.002 - 2.000 Enter the integration time for the
*
s] torque controller. Selection of a low
value makes the controller react faster.
Too low a setting leads to control
instability.
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: Function:
The effective feedback signal is made
up of the sum of up to two different
input signals.
Select which 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.
[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: Function:
The effective feedback signal is made
up of the sum of up to two different
input signals. Select which input
should be treated as the source of
the second of these signals. The first
input signal is defined in 7-20 Process
CL Feedback 1 Resource.
[0] No function
*
[1] Analog input 53
3 3
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