User Manual Owner's manual

134 Rockwell Automation Publication 290D-UM001A-EN-P - June 2012
Chapter 4 Bulletin 290D/291D/294D Programmable Parameters
Figure 35 - S Curve
DecelTime1
Sets the rate of deceleration for all speed decreases.
Parameter Number 37
Related Parameters 33, 36
Access Rule GET/SET
Data Type UINT
Group Speed Control
Units x.x secs
Minimum Value 0.1
Maximum Value 600.0
Default Value 10.0
Maximum Freq
Decel Time
-------------------------------------- D e c e l R a t e=
Parameter 35
(Maximum Freq)
Speed
Accel
Time 1
0
0
Time Decel
Time 1
Acceleration
Deceleration
SCurvePercent
Sets the percentage of acceleration or
deceleration time that is applied to ramp
as S Curve. Time is added, half at the
beginning and half at the end of the ramp.
Parameter Number 38
Access Rule GET/SET
Data Type UINT
Group Speed Control
Units Percentage
Minimum Value 0
Maximum Value 100
Default Value 0
Example:
Accel Time = 10 Seconds
S Curve Setting = 50%
S Curve Time = 10 x 0.5 = 5 Seconds
Total Time = 10 + 5 = 15 Seconds
1/2 S Curve Time
2.5 Seconds
Total Time to Accelerate = Accel Time + S Curve Time
Accel Time
10 Seconds
50% S Curve
Target 2
Targe t
1/2 S Curve Time
2.5 Seconds
JogFrequency
Sets the output frequency when the jog
command is issued.
Parameter Number 39
Related Parameters 35, 40
Access Rule GET/SET
Data Type UINT
Group Drive Advanced Setup
Units x.x Hz
Minimum Value 0.0
Maximum Value 400.0
Default Value 10.0