Danfoss VLT AutomationDrive FC 301 Programming Manual page 132

Parameter Descriptions
7-51 Process PID Feed Fwd Gain
Range: Function:
parameter 7-51 Process PID Feed Fwd Gain has more
options. In winder applications, the feed-forward
factor is typically the line speed of the system.
3 3
7-52 Process PID Feed Fwd Ramp up
Range:
0.01 s [0.01 - 10 s] Controls the dynamics of the feed-forward
*
7-53 Process PID Feed Fwd Ramp down
Range:
0.01 s [0.01 - 10 s] Controls the dynamics of the feed-forward
*
7-56 Process PID Ref. Filter Time
Range:
0.001 s [0.001 - 1
*
s]
7-57 Process PID Fb. Filter Time
Range:
0.001 s [0.001 - 1
*
s]
3.8.9 7-9* Position PI Ctrl.
Parameters for configuring the position controller.
7-90 Position PI Feedback Source
Option:
[0] Motor
*
feedb.
P1-02
[1] 24V
encoder
130
VLT
Function:
signal when ramping up.
Function:
signal when ramping down.
Function:
Set a time constant for the reference first-
order low-pass filter. The low-pass filter
improves steady-state performance and
dampens oscillations on the reference/
feedback signals. However, severe filtering
can be detrimental to dynamic
performance.
Function:
Set a time constant for the feedback first-
order low-pass filter. The low-pass filter
improves steady-state performance and
dampens oscillations on the reference/
feedback signals. However, severe filtering
can be detrimental to dynamic
performance.
Function:
NOTICE
This parameter is only available with
software version 48.XX.
Select the feedback source for the position PI
controller.
Use the feedback source selected as motor
feedback in parameter 1-02 Flux Motor Feedback
Source. In flux sensorless control principle the
estimated position from motor control is used.
A 24 V encoder connected to terminals 32, 33.
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®
AutomationDrive FC 301/302
7-90 Position PI Feedback Source
Option:
[2] MCB 102
[3] MCB 103
7-91 Position PI Droop
Range:
0.0 ° [0.0 -
*
360.0 °]
7-92 Position PI Proportional Gain
Range:
0.0150 [0.0000 -
*
1.0000]
7-93 Position PI Integral Time
Range:
20000.0
ms
*
7-94 Position PI Feedback Scale Numerator
Range:
1 [-2000000000
*
- 2000000000]
Function:
NOTICE
Set parameter 5-14 Terminal 32 Digital
Input and parameter 5-15 Terminal 33
Digital Input to [0] No operation.
Encoder connected to an encoder option (B-
option slot). Configure the encoder in
parameter group 17-1* Inc. Enc. Interface.
Resolver connected to resolver option (B-option
slot). Configure the resolver in parameter group
17-5* Resolver Interface.
Function:
Enter the motor angle deviation at 100% load
in a load sharing system. The system is 2 or
more mechanically connected motors in
positioning or synchronization mode. In
positioning mode, configure
parameter 7-01 Speed PID Droop to allow a
speed deviation.
Function:
NOTICE
This parameter is only available
with software version 48.XX.
Enter the proportional gain for the
position PI controller. Increasing the gain
value makes the control more dynamic
but less stable. 0=Off.
Function:
NOTICE
[1.0 -
20000.0 ms]
This parameter is only available
with software version 48.XX.
Enter the integral time for the
position PI controller. Decreasing the
value makes the control more
dynamic but less stable. 20000=Off.
Function:
NOTICE
This parameter is only available with
software version 48.XX.
This parameter is the numerator in the
equation which defines the gear ratio
MG33MO02