Rockwell Automation Allen-Bradley PowerFlex 520 Series, User Manual, Page: 141 / 272

Rockwell Automation Publication 520-UM001K-EN-E - August 2021 141
Chapter 3 Programming and Parameters
Advanced Program Group (continued)
A591 [SYNRM Flux Cur] Related Parameter(s):
PowerFlex 525 only.
(With FRN 7.xxx and later.)
SynRM Field Excitation Current.
Increasing the setting enhances no loading performance but has poor efficiency.
Decreasing the setting reduces no loading performance but good efficiency.
Values
Default: 35%
Min/Max: 0/150%
PF 525
A592 [SYNRM Freq1 Volt] Related Parameter(s):
PowerFlex 525 only.
(With FRN 7.xxx and later.)
The Amplitude of Injected Signal of Low-Speed Observer (Freq1).
Increasing the setting enhances the loading performance during Freq1 operation.
Values
Default: 30%
Min/Max: 0/100%
PF 525
A593 [SYNRM Freq1 Kp] Related Parameter(s):
PowerFlex 525 only.
(With FRN 7.xxx and later.)
The Scaling of Band Width At Low-Speed Observer (Freq1).
Increasing the setting enhances the loading performance during low-speed (Freq1) operation but too high causes motor vibration.
Decreasing the setting causes the motor to stall during startup and low-speed (Freq1) operation.
When the motor running speed is lower than the switching frequency A590 adjust the setting.
Values
Default: 1.00
Min/Max: 0.01/5.00
PF 525
A594 [SYNRM Freq1 Comp] Related Parameter(s):
PowerFlex 525 only.
(With FRN 7.xxx and later.)
The Scaling of Mutual Inductance Compensation At Low-Speed Observer (Freq1).
Increasing or decreasing the setting enhances the loading performance during Freq1 operation depending on the motor.
Values
Default: 1.00
Min/Max: 0/10.00
PF 525
A595 [SYNRM Freq2 BW] Related Parameter(s):
PowerFlex 525 only.
(With FRN 7.xxx and later.)
The Band Width At High-Speed Observer (Freq2).
Increasing the setting enhances the loading performance during high-speed (Freq2) operation but too high causes vibration.
Decreasing the setting causes the motor to stall during startup and high-speed (Freq2) operations.
When the motor running speed is higher than the switching frequency A590 , adjust the setting.
Values
Default: 10 Hz
Min/Max: 0/50 Hz
PF 525
A596 [SYNRM Freq2 Kp] Related Parameter(s):
PowerFlex 525 only.
(With FRN 7.xxx and later.)
The Scaling of Magnetic linkage estimator At High-Speed Observer (Freq2).
To fine tune the setting when motor is still not stable after adjustment A595 .
Increasing the motor setting enhances the loading performance during high-speed (Freq2) operation but too high causes vibration.
Decreasing the setting causes the motor to stall during startup and high-speed (Freq2) operations.
When the motor running speed is higher than the switching frequency A590 , adjust the setting.
Values
Default: 1.00
Min/Max: 0.1/10.00
PF 525