Master Feedback page

Use the
Master Feedback
 page to:
  • Select the type of feedback device
  • Select the required unit
  • Configure Device Type parameters
The
Master Feedback
 page is available when
Feedback Configuration
 on the
General
 page is set to
Master Feedback
.
TIP:
  • The controls on this page are available when the controller is offline.
  • When configuring the 842E-CM-S and 842E-CM-M modules, refer to the 842E-CM Integrated Motion Encoder User Manual, publication 842E-UM002, for the details on configuring the parameters.
TIP:
To open the Master Feedback 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
    Feedback Configuration
    , select
    Master Feedback
    .
  4. In
    Categories
    , select
    Master Feedback
    .
Parameter
Description
Device Function
Displays the feedback device function as
Master Feedback
.
Feedback Channel
Displays the CIP motion feedback channel.
Type
Select the type of feedback device.
Each feedback device has different configuration parameters.
List of available types:
  • Integrated
  • SSI Sine/Cosine
  • SSI AqB
  • BiSS Sine/Cosine
  • Not Specified
  • Digital AqB
  • Digital AqB (With UVW)
  • Digital Parallel (Abs)
  • Sine Cosine
  • Sine Cosine (With UVW)
  • Hiperface
  • EnDat Sine/Cosine
  • EnDat Digital
  • Resolver
  • SSI Digital
  • LDT
  • Hyperface DSL
  • BiSS Digital
  • Tamagawa Serial
  • Stahl SSI
Not Specified
 is the default parameter.
Tip:
 If the
Catalog Number
 is set to a value other than
none
, this parameter is provided by the motor database and the control is read-only. If
Catalog Number
 is set to
none
, the
Device Type
 is set back to
Not Specified
 and enables all parameters.
Tip:
 If a drive is associated and no feedback types are present, a drive's profile is incorrectly configured warning displays.
Units
Select the required unit. The available units are:
  • Meter
  • Rev
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.
Device Type parameters
The device
Type
parameters display when device
Type
is set to any value, except
Not Specified
.
Tip:
 The device type determines which parameters appear on the page. Parameters not supported by the device type are hidden.
Cycle Resolution
Enter the cycle resolution for the feedback device.
If
Catalog Number
 is set to a value other than
<none>
, this parameter is set by the motor database and becomes read-only.
Cycle Interpolation
Enter the interpolation factor for the feedback device.
If
Catalog Number
 is set to a value other than
<none>
, this parameter is set by the motor database and becomes read-only.
Effective Resolution
Displays the effective resolution of the feedback device. This value is calculated by multiplying the
Cycle Resolution
 with the
Cycle
Interpolation
.
Startup Method
Select the startup method for the feedback device. This parameter determines how the device applies the feedback count value during drive startup. Valid values include:
  • Incremental
     - The device zeros the feedback count accumulator at power-up.
  • Absolute
     - The device initializes the feedback count accumulator at power-up to the absolute feedback position value read from the feedback device. Digital AqB and Sine/Cosine Feedback Types do not support Absolute startup.
Turns
For a rotary motor, enter a value for the absolute number of turns for the device to make.
If
Catalog Number
 is set to a value other than
<none>
, this parameter is set by the motor database and becomes read-only.
Length
For a linear motor, enter the absolute length of the device.
If
Catalog Number
 is set to a value other than
<none>
, this parameter is set by the motor database and becomes read-only.
Commutation Offset
Enter a value for the commutation offset.
Tip:
 The
Commutation Offset
 value and the accompanying
Commutation
button only display for feedback devices that support commutation offset.
Test Commutation
Opens a dialog box to perform a commutation test (Hookup Test) on the device.
Tip:
 The
Commutation Offset
 value and the accompanying
Commutation
button only display for feedback devices that support commutation offset.
Data Code Type
Select a data type code for the feedback device.
The available options are:
  • Gray Code
  • Binary Code
Tip:
 The
Data Code Type
 and the accompanying
Data Length Type
 value only display for feedback devices that support Digital Parallel (Absolute), SSI, Tamagawa Serial, and Stahl SSI device types.
Data Length
Enter a value for the length of the data in bits.
Tip:
 The
Data Code Type
 and the accompanying
Data Length Type
 value only display for feedback devices that support Digital Parallel (Absolute), SSI, Tamagawa Serial, and Stahl SSI device types.
Absolute Turns/Absolute Length
For a rotary motor, enter a value for the absolute number of turns for the device to make.
For a linear motor, enter the absolute length of the device.
If
Catalog Number
 is set to a value other than
<none>
, this parameter is set by the motor database and becomes read-only.
Tip:
 The
Absolute Turns/Absolute Length
 value only displays for feedback devices that support Hiperface, EnDat 2.1, and EnDat 2.2 device types.
Transformation Ratio
Enter a value for the Transformation Ratio of the feedback device.
Tip:
 The
Transformation Ratio
 value only displays for feedback devices that support the Resolver device type.
Provide Feedback
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