Powered by Eaton Technology VSD Series Drives User Manual
LIT-1201828
For more information visit: www.johnsoncontrols.com 15-13
November 2009
Figure 15-11: Acceleration/Deceleration (S-shaped)
404 Acceleration/Deceleration
ramp shape
Used when not in Auto Mode
The start and end of the acceleration and deceleration ramps can be smoothed with
these parameters. Setting a value of 0.0 gives a linear ramp shape which causes
acceleration and deceleration to react immediately to the changes in the reference
signal.
Setting a value from 0.1 – 10 seconds for this parameter produces S-shaped
acceleration/deceleration. The acceleration time is determined with ID103 and ID104.
501 Prohibit frequency area 1;
Low limit
502 Prohibit frequency area 1;
High limit
In some systems it may be necessary to avoid certain frequencies because of
mechanical resonance problems. With these parameters limits are set for the “skip
frequency” regions. See Figure 15-12.
ID404
ID404
ID103, ID104
t
Hz
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