Smart Logic Control Programming - Danfoss FC 300 Design Manual

FC 300 Design Guide

Smart Logic Control Programming

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A new useful feature in the FC 302 is the Smart Logic Control (SLC).
In applications where a PLC generates a simple sequence, the SLC may take over
elementary tasks from the main control.
SLC is designed to act from event sent to or generated in the FC 302. The adjustable
frequency drive will then perform the pre-programmed action.
SLC Application Example
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One sequence 1:
Start – ramp-up – run at reference speed 2 sec – ramp-down and hold shaft until stop.
Set the ramping times in par. 3-41 and 3-42 to the desired times.
Set term 27 to No Operation (par. 5-12)
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 True [1]
Set Event 2 in par. 13-51 [2] to On Reference [4]
Set Event 3 in par. 13-51 [3] to Timeout 0 [30]
Set Event 4 in par. 13-51 [1] to False [0]
Set Action 1 in par. 13-52 [1] to Select preset 0 [10]
Set Action 2 in par. 13-52 [2] to Start Timer 0 [29]
Set Action 3 in par. 13-52 [3] to Select preset 1 [11]
Set Action 4 in par. 13-52 [4] to No Action [1]
Application Examples
MG.33.B6.22 - VLT is a registered Danfoss trademark
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