Rockwell Automation 25B PowerFlex 520-Series Adjustable Frequency AC Drive User Manual - Manual (Page 109)

Rockwell Automation Publication 520-UM001G-EN-E - September 2014 109
Programming and Parameters Chapter 3
Advanced Program Group (continued)
A433 [Purge Frequency] Related Parameter(s): t062 , t063 , t065 - t068
Provides a fixed frequency command value when t062 , t063 , t065 - t068 [DigIn TermBlk xx] is set to 40 “Purge”.
Values Default: 5.00 Hz
Min/Max: 0.00/500.00 Hz
Display: 0.01 Hz
A434 [DC Brake Time] Related Parameter(s): P045 , A435
Sets the length of time that DC brake current is “injected” into the motor.
Values Default: 0.0 s
Min/Max: 0.0/99.9 s
Display: 0.1 s
A435 [DC Brake Level] Related Parameter(s): P045
Defines the maximum DC brake current, in amps, applied to the motor when P045 [Stop Mode] is set to either 4 “Ramp” or 6 “DC Brake”.
Values Default: Drive Rated Amps x 0.05
Min/Max: 0.00/(Drive Rated Amps x 1.80)
Display: 0.01 A
DC Injection Stop Mode
Volts/Speed
Voltage
Time
Stop Command
Speed
[DC Brake Time]
Volts/Speed
Ramp-to-Stop Mode
Time
Stop Command
Magnitude
depends on
[DC Brake Level] Magnitude
depends on
[DC Brake Level]
[DC Brake Time]
Voltage
Speed
ATTENTION: If a hazard of injury due to movement of equipment or material exists, an auxiliary mechanical braking device must be used. This feature should
not be used with synchronous motors. Motors may be demagnetized during braking.
A436 [DC Brk Time@Strt] Related Parameter(s): P045 , A435
Sets the length of time that DC brake current is “injected” into the motor after a valid start command is received.
Values Default: 0.0 s
Min/Max: 0.0/99.9 s
Display: 0.1 s
Volts/Speed
Time
Start Command
[DC Brake Level]
[DC Brk Time@Strt]
Voltage
Speed