Process Pi Integral Time; Process Feed Forward Factor; On Reference Bandwidth - Danfoss VLT FC 51 Series Programming Manual

VLT Micro Drive FC 51

7-34 Process PI Integral Time

Range:
9999 s

7-38 Process Feed Forward Factor

Range:
*
0%

7-39 On Reference Bandwidth

Range:
5%
Function:
* [0.01 - 999.0 s] The integrator provides an increasing gain at a constant error
between the set point and the feedback signal. The integral time
is the time needed by the integrator to reach the same gain as
the proportional gain.
Function:
[0 - 400%] The FF factor sends a part of the reference signal around the PI
controller which then only affects part of the control signal.
By activating the FF factor less overshoot and high dynamics are
gained when changing the setpoint.
This parameter is always active when par. 1-00
Mode
Function:
[0 - 200% ] Enter the value for the On Reference Bandwidth.
The PI control error is the difference between setpoint and
feedback and when this is less than the value set in this param-
eter the On Reference is active.
MG.02.C2.02 - VLT ® is a registered Danfoss trademark
Process
is set to [3].
4. Parameter Descriptions
Configuration
4
51