34 Rockwell Automation Publication 750-QS100B-EN-P - August 2020
Step 6: Set Up Velocity Feedback for Flux Vector Control
Configure Motor Encoder Velocity Feedback
This procedure is needed only if you are using closed loop Flux Vector motor control with a motor-incremental-encoder-
feedback device. In this procedure, you configure the motor incremental encoder feedback.
1. Navigate to parameter 10:1000 [Pri Vel Fb Sel] and press the EDIT soft key.
2. Edit the value to assign the encoder module port and feedback parameter number for the velocity feedback,
corresponding to the encoder terminal connections you recorded in Ta b l e 1 o n p a g e 8
. Press the ENTER soft key.
Example: Suppose that the encoder is wired to terminals <1A…1Z> of the dual encoder feedback module
(20-750-DENC-1) in port 5. In this case, you would do the following:
Navigate to parameter 10:1000 [Pri Vel Fb Sel]. Press the EDIT soft key. Edit the value using the HIM navigation
keys to select the encoder module in port 5. Press the ENTER soft key. Use the HIM navigation keys to select
parameter 5:14 [Enc 1 FB]. Press the ENTER soft key.
3. Navigate to the port and parameters for the encoder feedback option module. Press the EDIT soft key.
4. Edit the parameter values to the value required for the application and corresponding to data recorded in Table 1
.
Press the ENTER soft key. For more information about setting these parameters, see the PowerFlex Drives with
TotalFORCE Control Programming Manual, publication 750-PM100
.
Example: Continuing the example in step 2
, you would navigate to port 5 and edit values for these parameters:
5:11 [Enc1 Cfg], 5:12 [Enc1 PPR], and 5:13 [Enc 1 FB Lss Cfg].
Examples of wiring encoder feedback option modules can be found in the PowerFlex 750-Series I/O, Feedback, and
Power Option Modules Installation Instructions, publication 750-IN111
.
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