40 Rockwell Automation Publication 6000-TD004D-EN-P - November 2017
Chapter 1 Functional Descriptions
• t3 = Deceleration Time 3 (P390)
• t4 = Deceleration Time 4 (P392)
The following parameters are used to define the acceleration process:
• Freq1 = Acceleration Frequency 1 (P419)
• Freq2 = Acceleration Frequency 2 (P421)
• Freq3 = Acceleration Frequency 3 (P423)
• t1 = Acceleration Time 1 (P418)
• t2 = Acceleration Time 2 (P420)
• t3 = Acceleration Time 3 (P422)
• t4 = Acceleration Time 4 (P424)
The following rule must be observed for both deceleration and acceleration:
Freq1 > Freq2 > Freq3
Parameter Deceleration Process Enable (P385) must be set to “1” to use this
function. The total deceleration time is equal to:
Deceleration Time 1 + Deceleration Time 2 + Deceleration Time 3 +
Deceleration Time 4
If Deceleration Process Enable is set to “0”, the deceleration time is equal to the
value set in Deceleration Time (P399).
Parameter Acceleration Process Enable (P425) must be set to “1” to use this
function. The total acceleration time is equal to:
Acceleration Time 1 + Acceleration Time 2 + Acceleration Time 3 +
Acceleration Time 4
If Acceleration Process Enable is set to “0”, the acceleration time is equal to the
value set in Acceleration Time (P401).
Figure 17 - Deceleration and Acceleration Process Diagram
Deceleration Acceleration
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