Current Loop page

Use the settings on the
Current Loop
 page in the
Axis Properties
 dialog box to configure the active and reactive current loop. The
Converter Current Loop Tuning Method
 determines whether the responsiveness of the active and reactive current loops is direct or calculated.
With the
Direct
 method, the
Integrator Bandwidth
 value determines the current loop response. This value maps to the integral gain of the converter's current loop.
With the
Calculated
 method, the
Damping
 value determines the loop response. The converter uses this value to calculate the appropriate internal current loop integral gain based on the Bandwidth and known load characteristics of the AC Line.
The
Current Loop
 page is available when, on the
General
 page, the
Axis Configuration
 is set to
Regenerative AC/DC Converter
 or
Low Harmonic AC/DC Converter
.
TIP: To open the Current Loop page:
  1. In the
    Controller Organizer
    , expand the
    Motion Groups
     folder, and double-click an axis.
  2. From the
    Axis Properties
     dialog box, in
    Categories
    , click
    General
    .
  3. In the
    Axis Configuration
     box, select
    Regenerative AC/DC Converter
     or
    Low Harmonic AC/DC Converter
    .
  4. In
    Categories
    , click
    Current Loop
    .
Use these settings to configure active and reactive current loop.
Parameter
Description
Tuning Method
Determines the method used to configure the responsiveness of the active and reactive current loops.
Available tuning methods are:
  • Direct
  • Calculated
The parameter is unavailable when in online mode and when the axis is
Servo On
.
Bandwidth
Specifies the value that determines the bandwidth of the active and reactive AC line current loops.
The default value is 0.0 Hertz.
The parameter is unavailable when in online mode and when the axis is
Servo On
.
Integrator Bandwidth
Specifies the value that represents the bandwidth of the velocity integrator beyond which the integrator is ineffective.
The default value is 0.0 Hertz.
This parameter is unavailable when
Tuning Method
 is set to
Calculated
.
Damping
Specifies the damping factor that together with the bandwidth determines the responsiveness of the active and reactive AC line current loops.
The default value is 0.0 Hertz.
This parameter is unavailable when
Tuning Method
 is set to
Direct
.
Vector Limit
Specifies the value applied to current vector limiter which provides a configurable limit to the magnitude of the current vector of the converter's active and reactive current reference signals.
The default is 100.0 % Rated.
Parameters
Opens the
Motion Axis Parameters
 page to modify existing or additional parameters.
Tip:
 The
Parameter List
 page may contain more attributes than the associated page. In some cases, attributes that display on the
Parameter List
 page do not display on the associated page.
Provide Feedback
Have questions or feedback about this documentation? Please submit your feedback here.