Rockwell Automation 22A PowerFlex 4 User Manual FRN 6.xx - Manual (Page 53)

Programming and Parameters 3-17
Advanced Program Group (continued)
A079 [Jog Accel/Decel] Related Parameter(s): A051 , A052 , A078
Sets the acceleration and deceleration time when a jog command is issued.
Values Default 10.0 Secs
Min/Max: 0.1/600.0 Secs
Display: 0.1 Secs
A080 [DC Brake Time]
Related Parameter(s): P037 , A081
Sets the length of time that DC brake current is “injected” into the motor. Refer to parameter A081 [DC
Brake Level].
Values Default 0.0 Secs
Min/Max: 0.0/90.0 Secs
Display: 0.1 Secs
A081 [DC Brake Level] Related Parameter(s): P037 , A080
Defines the maximum DC brake current, in amps, applied to the motor when P037 [Stop Mode] is set
to either “Ramp” or “DC Brake”.
Values Default Drive Rated Amps
×
0.05
Min/Max: 0.0/(Drive Rated Amps
×
1.8)
Display: 0.1 Amps
DC Injection Braking Mode
V
olts/S
p
eed
Voltage
Time
Stop Command
Speed
[DC Brake Level]
[DC Brake Time]
V
olts/S
p
eed
Ramp-to-Stop Mode
Time
Stop Command
[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.
!
ATTENTION: This feature should not be used with synchronous or permanent
magnet motors. Motors may be demagnetized during braking.