Rockwell Automation Publication 750-QS001A-EN-P - March 2015 69
Reference Section
Table 44 - Acceleration and Deceleration Parameter Settings
No. Parameter Name User Setting Values Notes
535 Accel Time 1 Units:
Default:
Min/Max:
Secs
10
0.00 / 3600.00
Sets the acceleration rate for all speed changes and is
dependent on inertia and acceleration torque. Also, set
parameter 422 [Current Limit 1] to drive rating.
For more information, see Acceleration Time on page 68.
537 Decel Time 1 Units:
Default:
Min/Max:
Secs
10
0.00 / 3600.00
Sets the deceleration rate for all speed changes and is
dependent on inertia and deceleration torque.
Decel rate can affect the extent of the dynamic braking needed.
Increase the decel rate to reduce re
generative energy demand or
increase the dynamic brake capacity.
For more information, see Deceleration Time on page 68 or the
PowerFlex Dynamic Braking Resistor Calculator Application
Technique, publication PFLEX-AT001.
422 Current Limit 1 Units:
Default:
Min/Max:
Amps
Based on drive rating
and ND/HD selection
Based on drive rating
Current setting above continuous current rating of the drive is
time limited. Refer to the Recommendation in Acceleration
Time on page 68.
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