Danfoss VLT Series Design Manual page 114

6. Application Examples
6.1.7. SLC Application Example
One sequence 1:
Start – ramp up – run at reference speed 2 sec – ramp down and hold shaft until stop.
6
Set the ramping times in par. 3-41 and 3-42 to the wanted times
t
ramp
Set term 27 to
Set Preset reference 0 to first preset speed (par. 3-10 [0]) in percentage of Max reference speed
(par. 3-03). Ex.: 60%
Set preset reference 1 to second preset speed (par. 3-10 [1] Ex.: 0 % (zero).
Set the timer 0 for constant running speed in par. 13-20 [0]. Ex.: 2 sec.
Set Event 1 in par. 13-51 [1] to
Set Event 2 in par. 13-51 [2] to
Set Event 3 in par. 13-51 [3] to
Set Event 4 in par. 13-51 [1] to
Set Action 1 in par. 13-52 [1] to
Set Action 2 in par. 13-52 [2] to
Set Action 3 in par. 13-52 [3] to
Set Action 4 in par. 13-52 [4] to
114
( . 1 − 25 )
t × n par
acc norm
=
ref RPM
∆
No Operation
(par. 5-12)
True
On Reference
Time Out 0
False
Select preset 0
Start Timer 0
Select preset 1
No Action
MG.11.B2.02 - VLT
[1]
[4]
[30]
[0]
[10]
[29]
[11]
[1]
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is a registered Danfoss trademark
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VLT HVAC Drive Design Guide