160 kf speed loop, 161 spd desired bw, 162 error filtr bw – Rockwell Automation 1336E IMPACT Adjustable Frequency AC Drive User Manual V 1-4.XX User Manual

Page 247: 163 reserved, 164 autotune torque

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Parameters

11-49

160

Kf Speed Loop

Use Kf Speed Loop to control the feed forward gain of the speed
regulator. Setting the Kf gain to less than one reduces speed
feedback overshoot in response to a step change in speed
reference.

Parameter number

160

File:group

Control:Speed Regulator

Parameter type

linkable destination

Display

x.xxx

Factory default

1.000

Minimum value

0.500

Maximum value

1.000

Conversion

65535 = 1.0

161

Spd Desired BW

Use Spd Desired BW to specify the speed loop bandwidth and to
determine the dynamic behavior of the speed loop. As you
increase the bandwidth, the speed loop becomes more
responsive and can track a faster changing speed reference.

As you adjust the bandwidth setting, the 1336 IMPACT drive
calculates and changes Ki Speed Loop (parameter 158) and Kp
Speed Loop (
parameter 159) gains. A zero bandwidth setting lets
you adjust the speed loop gains independent of bandwidth for
custom tuning applications.

Note: You must have the correct Total Inertia (parameter 157)
entered before adjusting the speed loop bandwidth. Total Inertia
is measured by the autotune (startup) routine.

Parameter number

161

File:group

Control:Speed Regulator

Autotune:Autotune Results

Parameter type

linkable destination

Display

x.xx radians/second

Factory default

5.00 radians/second

Minimum value

0.00 radians/second

Maximum value

calculated

Conversion

100 = 1

162

Error Filtr BW

Use Error Filtr BW to set the bandwidths of two cascaded low
pass filters in the Kf error path of the speed PI regulator.

Parameter number

162

File:group

Control:Speed Regulator

Parameter type

linkable destination

Display

x.x radians/second

Factory default

500.0 radians/second

Minimum value

calculated

Maximum value

1500.0 radians/second

Conversion

10 = 1.0

163

Reserved

Leave this parameter set to 0.

Parameter number

163

File:group
Parameter type
Display
Factory default
Minimum value
Maximum value
Conversion

164

Autotune Torque

Use Autotune Torque to specify the motor torque that is applied
to the motor during the flux current and inertia tests.

Parameter number

164

File:group

Autotune:Autotune Setup

Parameter type

destination

Display

x.x%

Factory default

50.0%

Minimum value

25.0%

Maximum value

100.0%

Conversion

4096 = 100.0%

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