Rockwell Automation 25B PowerFlex 520-Series Adjustable Frequency AC Drive User Manual - Manual (Page 118)

118 Rockwell Automation Publication 520-UM001G-EN-E - September 2014
Chapter 3 Programming and Parameters
Advanced Program Group (continued)
A495 [Drive OL Mode]
Determines how the drive handles overload conditions that would otherwise cause the drive to fault.
Options 0 “Disabled”
1 “Reduce CLim”
2 “Reduce PWM”
3 “Both-PWM 1st” (Default)
A496 [IR Voltage Drop] Related Parameter(s): P040
Value of volts dropped across the resistance of the motor stator (autotune) for induction motor.
Values Default: Based on Drive Rating
Min/Max: 0.0/600.0VAC
Display: 0.1VAC
A497 [Flux Current Ref] Related Parameter(s): P040
This is the current necessary for full motor flux. The value should be set to the full speed no-load current of the motor.
Values Default: Based on Drive Rating
Min/Max: 0.00/(Drive Rated Amps x 1.4)
Display: 0.01 A
A498 [Motor Rr]
PowerFlex 525 only.
Rotor resistance of induction motor.
Values Default: Based on Drive Rating
Min/Max: 0.00/655.35 ohm
Display: 0.01 ohm
PF 525
A499 [Motor Lm]
PowerFlex 525 only.
Mutual Inductance of induction motor.
Values Default: Based on Drive Rating
Min/Max: 0.0/6553.5 mH
Display: 0.1 mH
PF 525
A500 [Motor Lx]
PowerFlex 525 only.
Leakage Inductance of induction motor.
Values Default: Based on Drive Rating
Min/Max: 0.0/6553.5 mH
Display: 0.1 mH
PF 525
A509 [Speed Reg Sel] Related Parameter(s): A521 , A522 , A523 , A524 , A525 , A526
PowerFlex 525 only.
Determines if PI gain of the “Vector” control mode speed regulator is set automatically or manually. Parameters A521 ... A526 are set automatically by this parameter.
Options 0 “Automatic” (Default)
1 “Manual”
PF 525