Smart Logic Control Programming - Danfoss VLT AutomationDrive FC 300 Design Manual

FC 300 Design Guide
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7.1.9. Smart Logic Control Programming

A new useful facility in FC 300 is the Smart Logic Control (SLC).
In applications where a PLC is generating 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 300. The frequency converter
will then perform the pre-programmed action.
7.1.10. SLC Application Example
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 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
Avoid running a complete AMA when using synchronous motors. If synchronous motors
are applied, run a reduced AMA and manually set the extended motor data. The AMA
function does not apply to permanent magnet motors.
The frequency converter does not produce motor torque during an AMA. During an AMA,
it is imperative that the application does not force the motor shaft to run, which is known
to happen with e.g. wind milling in ventilation systems. This disturbs the AMA function.
( . 1 − 25 )
t n par
×
acc norm
=
ref RPM
Δ
No Operation
(par. 5-12)
True
On Reference
Time Out 0
False
Select preset 0
Start Timer 0
MG.33.B9.02 - VLT ® is a registered Danfoss trademark
[1]
[4]
[30]
[0]
[10]
[29]
7. Application Examples
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