Speed reference, E speed reference on – Rockwell Automation 20D PowerFlex 700S with Phase I Control Reference Manual User Manual

Page 130

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Rockwell Automation Publication PFLEX-RM002D-EN-E - August 2013

Chapter 1

Detail Drive Configuration and Operation

2.

Set parameter 90 [Spd Reg BW]. Do not exceed the bandwidth limit of
curve 2 in the following chart (based on the ratio of motor inertia to
system inertia).

3.

Set parameter 133 [Inert Adapt BW] = parameter 90 [Spd Reg BW]

4.

Verify that Lead Lag filters are off:
Parameter 93 [SRegFB Filt Gain] = 1
Parameter 95 [SReg Out Filt Gain] = 1 to disable the filters.

5.

Enable inertia adaptation, parameter 132 [Inert Adapt Sel] bit 0 “Inertia
Adapt” = 1.

6.

Enable the drive and adjust the BW for the application but do not exceed
curve 2 (as shown in the chart above). When you adjust the BW, you must
set [Spd Reg BW] and [Inert Adapt BW] to the same BW.

You may hear an unusual high frequency sound which indicates adaptation is
active.

Speed Reference

The speed reference control loop consists of speed reference scaling, speed
reference selection, jogging, speed reference limiting, ramping, s-curve, and
filtering. Each of these features is described in greater detail below.

Figure 33 - Overall Speed Reference Loop

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