Rockwell Automation Allen-Bradley PowerFlex 520 Series, User Manual, Page: 139 / 272

Rockwell Automation Publication 520-UM001K-EN-E - August 2021 139
Chapter 3 Programming and Parameters
Advanced Program Group (continued)
A576 [Phase Loss Level]
(With PowerFlex 525 FRN 5.xxx and later.)
(With PowerFlex 523 FRN 3.xxx and later.)
Output Phase Loss Level. Sets the threshold level which is used to determine an output phase loss condition.
Each motor phase must exceed this value. Decreasing this parameter's value lowers sensitivity.
Values
Default: 25.0% for Induction motor; 4.0% for PM motor
Min/Max: 0.0/100.0%
Display: 0.1%
A580 [Current Loop BW]
PowerFlex 525 only.
(With FRN 5.xxx and later.)
Current loop bandwidth (0 = Automatically calculate the control gain of current loop).
Values
Default: 0 Hz
Min/Max: 0/65535 Hz
Display: 1 Hz
PF 525
A581 [PM Stable 1 Freq]
PowerFlex 525 only.
(With FRN 5.xxx and later.)
The start frequency for stabilization loop ( P032 [Motor NP Hertz] x A581 [PM Stable 1 Freq]).
Values
Default: 0%
Min/Max: 0/100%
Display: 1%
PF 525
A582 [PM Stable 2 Freq]
PowerFlex 525 only.
(With FRN 5.xxx and later.)
Stabilization function will return to normal output after this frequency ( P032 [Motor NP Hertz] x A582 [PM Stable 2 Freq]).
Values
Default: 45%
Min/Max: 0/100%
Display: 1%
PF 525
A583 [PM Stable 1 Kp]
PowerFlex 525 only.
(With FRN 5.xxx and later.)
Percentage of the gain for stabilization loop. The gain is set in A584 [PM Stable 2 Kp].
Values
Default: 40%
Min/Max: 0/100%
Display: 1%
PF 525
A584 [PM Stable 2 Kp]
PowerFlex 525 only.
(With FRN 5.xxx and later.)
The gain for stabilization loop.
Values
Default: 250%
Min/Max: 0/2000%
Display: 1%
PF 525