Rockwell Automation MD65 User Manual Version 2.0 - Manual (Page 76)

9-22 MD65 AC Drive User Manual
Enables/disables external dynamic braking.
Sets the percentage of acceleration or deceleration time that is
applied to the ramp as an S Curve. Time is added, 1/2 at the
beginning and 1/2 at the end of the ramp.
For example: If Accel Time = 10 seconds, and the S Curve %
setting is 50%, the S Curve time will be 10 x 0.5 = 5 seconds. The
total time will be 10 + 5 = 15 seconds.
See figure 9.6 for an example.
A082 DB Resistor Sel
Range: 0 = Disabled
1 =
Normal RA Resistor (5% Duty Cycle)
2 = No Protection (100% Duty Cycle)
3 to 99 = Duty Cycle Limited (3% to 99% Duty
Cycle)
Default: 0 = Disabled
See also: P037
A083 S Curve %
Range: 0 to 100%
Default: 0% (Disabled)
See also: N/A
Accel Time = 10 sec
S Curve% = 50%
S Curve Time = 10 x 0.5 = 5 sec
Total Time = 10 + 5 = 15 sec
Figure 9.6 – S Curve % (A083) Example
1/2 S Curve Time
2.5 Seconds
Total Time to Accelerate = Accel Time + S Curve Time
50% S Curve
Target
Target/2
Accel Time
10 Seconds
1/2 S Curve Time
2.5 Seconds