beautypg.com

Example 1: feedback group settings – Rockwell Automation 21G PowerFlex 750-Series AC Drives Reference Manual User Manual

Page 134

background image

134

Rockwell Automation Publication 750-RM001F-EN-P - February 2012

Chapter 11

Configuration Examples

Example 1: Feedback Group Settings

Figure 48 - Feedback Group Parameters

Follow these steps to configure the type of feedback used by the safety option.

1. From the Feedback group, choose the P27 [Fbk Mode] parameter.

2. Set the P27 [Fbk Mode] parameter value to 0 (default) for redundant

processing and cross-checking of the single encoder input in a 1oo2
architecture.

3. Choose the P28 [Fbk 1 Type] parameter.

The default value is 1 for incremental encoder input.

4. Set the P28 [Fbk 1 Type] parameter value to 0 for Sine/Cosine and

internal monitoring of the single encoder input.

5. Choose the P29 [Fbk 1 Units] parameter.

6. Set the P29 [Fbk 1 Units] parameter to 0 (default), which equals Rotary

feedback.

7. Choose the P30 [Fbk 1 Polarity] parameter.

8. Set the P30 [Fbk 1 Polarity] parameter to 0 (default) to set up the

direction for monitoring to be the same as the encoder direction
(Normal).

9. Choose the P31 [Fbk 1 Resolution] parameter.

10. Choose 1024 (default) or enter value between 1…65,535 pulses/

revolution based on the encoder’s specifications.

11. Choose the P32 [Fbk 1 Volt Mon] parameter.

Port 04: Param File-Group

FILE: Parameter Groups

Fbk Mode

ESC

AUTO

Not Enabled
0.000 Hz

F

GROUP: Feedback

Fbk 1 Type
Fbk 1 Units

HIM Screen

Software Screen