PowerFlex Digital DC Drive User Manual -
Publication 20P-UM001C-EN-P - July 2008
Application Notes
C-17
Linking Parameters Via the Scale Block Parameters
Most parameter values are entered directly by the user. However, certain
parameters can be “linked,” via the Scale Block parameters, so the value of
one parameter becomes the value of another.
For example, the value of an analog input 1, parameter 70 [Anlg In1 Sel],
can be linked to parameter 660 [Accel Time 1]. In order to do so:
•
Set parameter 70 [Anlg In1 Sel] to 12 “UserDefined0”.
•
Set parameter 484 [Scale1 Input] to “503” (the parameter number of
[UserDefined0]).
•
Set parameter 485 [Scale1 Output] to “660” (the parameter number of
[Accel Time 1]).
In this way, rather than entering an acceleration time directly (via HIM), the
link allows the value to change by varying the analog signal. This can
provide additional flexibility for certain applications. This functionality
should be tested for the desired response before applying to an application.
Speed Regulation Functions
The PowerFlex DC Digital drive provides a flexible speed regulator circuit
that can be adapted to the requirements of a variety of applications. The
drive is set to PI regulation by default.
Adaptive Speed Regulator
The adaptive speed regulator function enables different gains of the speed
regulator depending on the speed reference or another variable (adaptive
reference). This allows optimum adaptation of the speed regulator to the
specific application.
P1
88
Ad
a
ptive P G
a
in1
P1
8
9
Ad
a
ptive I G
a
in1
P190
Ad
a
ptive P G
a
in2
P191
Ad
a
ptive I G
a
in2
P192
Ad
a
ptive P G
a
in
3
P19
3
Ad
a
ptive I G
a
in
3
P1
8
6
Ad
a
ptive Joint 1
P1
8
7
Ad
a
ptive Joint 2
P1
83
Ad
a
ptive Ref
P1
8
5
Ad
a
ptive
S
pd 2
P1
8
4
Ad
a
ptive
S
pd 1
