Slc Application Example - Danfoss VLT FC 102 Series Design Manual

Application Examples Design Guide

7.1.7 SLC Application Example

7 7
Figure 7.5 One sequence 1: Start – ramp-up – run at reference speed 2 sec – ramp-down and hold shaft until stop.
Set the ramping times in 3-41 Ramp 1 Ramp-up Time and 3-42 Ramp 1 Ramp-down Time to the desired times
tacc × nnorm par . 1 − 25
tramp =
ref RPM
Set term 27 to No Operation (5-12 Terminal 27 Digital Input)
Set Preset reference 0 to first preset speed (3-10 Preset Reference [0]) in percentage of Max reference speed (3-03 Maximum
Reference). Ex.: 60%
Set preset reference 1 to second preset speed (3-10 Preset Reference [1] Ex.: 0% (zero)
Set the timer 0 for constant running speed in 13-20 SL Controller Timer [0]. Ex.: 2 sec
Set Event 1 in 13-51 SL Controller Event [1] to True [1]
Set Event 2 in 13-51 SL Controller Event [2] to On Reference [4]
Set Event 3 in 13-51 SL Controller Event [3] to Time Out 0 [30]
Set Event 4 in 13-51 SL Controller Event [4] to False [0]
Set Action 1 in 13-52 SL Controller Action [1] to Select preset 0 [10]
Set Action 2 in 13-52 SL Controller Action [2] to Start Timer 0 [29]
Set Action 3 in 13-52 SL Controller Action [3] to Select preset 1 [11]
Set Action 4 in 13-52 SL Controller Action [4] to No Action [1]
138 Danfoss A/S © Rev. 06/2014 All rights reserved. MG11BC22