Rockwell Automation MD65 User Manual Version 2.0 - Manual (Page 75)

Parameter Descriptions 9-21
Sets the acceleration and deceleration time when a jog command is
issued. Refer to parameters A051-A054 for information on how to
jog the drive.
.
Sets the length of time that DC brake current is “injected” into the
motor. Refer to DC Brake Level (A081).
Defines the maximum DC brake current, in amps, applied to the
motor when Stop Mode (P037) is set to either DC Brake or Ramp.
See figure 9.5.
A079 Jog Accel/Decel
Range: 0.1 to 600.0 sec
Default: 10.0 sec
See also: A051-A054, A078
A080 DC Brake Time
Range: 0.0 to 99.9 sec (A setting of 99.9 = Continuous)
Default: 0.0 sec
See also: P037, A081
A081 DC Brake Level
Range: 0.0 to (Drive Rated Amps x 1.8)
Default: Drive Rated Amps x 0.05
See also: P037, A080
!
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.
Figure 9.5 – DC Brake Level (A081)
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