Rockwell Automation 1336S Plus FRN 1.xx-5.xx User Manual

Page 127

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5–49

Programming

[PI Feedback]

This parameter displays the current value of the
reference selected by [PI Fdbk Select].

Parameter Number

218

Parameter Type

Read Only

Display Units / Drive Units

0.01 Hertz / 32767 = Maximum Freq Forward

Factory Default

None

Minimum Value

–400.00 Hz

Maximum Value

400.00 Hz

[PI Error]

The value of the error calculated by the PI loop. This
value is the difference between [PI Reference] & [PI
Feedback] and determines the PI output.

Parameter Number

219

Parameter Type

Read Only

Display Units / Drive Units

0.01 Hertz / 32767 = Maximum Freq Forward

Factory Default

None

Minimum Value

–400.00 Hz

Maximum Value

400.00 Hz

[PI Output]

The current output of the PI loop is displayed with
this parameter. This output is used as the speed
command for process control or the speed adder for
process trim.

Parameter Number

220

Parameter Type

Read Only

Display Units / Drive Units

0.01 Hertz / 32767 = Maximum Freq Forward

Factory Default

None

Minimum Value

–400.00 Hz

Maximum Value

400.00 Hz

[KI Process]

This parameter sets the integral gain of the process
PI loop.

Parameter Number

221

Parameter Type

Read/Write

Display Units / Drive Units

NA / NA

Factory Default

128

Minimum Value

0

Maximum Value

1024

[KP Process]

This parameter sets the proportional gain of the
process PI loop.

Parameter Number

222

Parameter Type

Read/Write

Display Units / Drive Units

NA / NA

Factory Default

256

Minimum Value

0

Maximum Value

1024

[PI Neg Limit]

This parameter sets the lower (negative) limit of the
PI output.

Parameter Number

223

Parameter Type

Read/Write

Display Units / Drive Units

0.01 Hertz / 32767 = Maximum Freq Forward

Factory Default

–8.33% of [Maximum Freq]

Minimum Value

–400.00 Hz

Maximum Value

400.00 Hz

[PI Pos Limit]

This parameter sets the upper (positive) limit of the
PI output.

Parameter Number

224

Parameter Type

Read/Write

Display Units / Drive Units

0.01 Hertz / 32767 = Maximum Freq Forward

Factory Default

+8.33% of [Maximum Freq]

Minimum Value

–400.00 Hz

Maximum Value

400.00 Hz

Process PI

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