Rockwell Automation Allen-Bradley PowerFlex 520 Series, User Manual, Page: 138 / 272

138 Rockwell Automation Publication 520-UM001K-EN-E - August 2021
Chapter 3 Programming and Parameters
Advanced Program Group (continued)
A572 [Speed Ratio]
Stop drive before changing this parameter.
Scales the drive speed command.
Values
Default: 1.00
Min/Max: 0.01/99.99
Display: 0.01
A573 [Mtr Options Cfg]
(With PowerFlex 525 FRN 2.xxx and later.)
(With PowerFlex 523 FRN 3.xxx and later.)
Sets the configuration of the motor option.
Values
Default: 11
Min/Max: 00/11
Display: 00
1 = Enabled, 0 = Disabled
Jerk Select Digit 1
ZeroSpd Slip Digit 2
Not Used
Not Used
Not Used
Options Description
Jerk Select
Limits the rate of change to the velocity reference for improved current
limiting. Set to 0 “Disabled” for positioning type applications with fast Accel
or Decel times.
ZeroSpd Slip
Sets slip compensation to 0.0 Hz when the following conditions are met:
• Commanded speed = 0.00 Hz
• Status of drive = “At speed”
• ZeroSpd Slip = 1 “Enabled”
A574 [RdyBit Mode Cfg] Related Parameter(s): d392
Stop drive before changing this parameter.
(With PowerFlex 525 FRN 3.xxx and later.)
(With PowerFlex 523 FRN 3.xxx and later.)
Determines which Stop conditions causes the drive’s Ready bit (Network Logic Status bit 1) to go low (0). A reset or power cycle is required after selection is made.
Options
0 “Standard” (Default)
1 “Enhanced”
Ready Bit Status
(1)
(1) 1 = Active, 0 = Inactive
Stop Conditions Standard Enhanced
Drive fault 0 0
Stop digital input terminal 01/11 open 1 0
Holding down the drive’s keypad or the Remote DSI HIM Stop button 1 0
Stop commanded through Comms (Stop bit = 1) 1 0
Software (SW) Enable digital input terminal open 1 0
Safe-Torque-Off (STO) condition with value of t105 [Safety Open En] set to 1
“FaultDisabled”
(2)
(2) Condition is specific to PowerFlex 525 drives only.
0 0
A575 [Flux Braking En] Related Parameter(s): A550
(With PowerFlex 525 FRN 5.xxx and later.)
(With PowerFlex 523 FRN 3.xxx and later.)
Enables/disables flux braking.
Options
0 “Disable” (Default)
1 “Enable”