Danfoss VLT AQUA Drive FC 202 Design Manual

5.2.11 Smart Logic Control (SLC)
Smart logic control (SLC) is a sequence of user-dened
actions (see parameter 13-52 SL Controller Action [x])
executed by the SLC when the associated user-dened
event (see parameter 13-51 SL Controller Event [x]) is
evaluated as TRUE by the SLC.
The condition for an event can be a particular status, or
that the output from a logic rule or a comparator operand
becomes TRUE. The condition leads to an associated action
as shown in Figure 5.3.
. . .
. . .
Par. 13-11
Comparator Operator
Par. 13-43
Logic Rule Operator 2
Par. 13-51
SL Controller Event
Par. 13-52
SL Controller Action
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Coast
Start timer
Set Do X low
Select set-up 2
. . .
Running
Warning
Torque limit
Digital input X 30/2
. . .
=
TRUE longer than..
. . .
. . .
Figure 5.3 SLC Event and Action
Events and actions are each numbered and linked in pairs
(states), which means that when event [0] is fullled
(attains the value TRUE), action [0] is executed. After the 1
st
action is executed, the conditions of the next event are
evaluated. If this event is evaluated as true, then the
corresponding action is executed. Only 1 event is
evaluated at any time. If an event is evaluated as false,
nothing happens in the SLC during the current scan
interval and no other events are evaluated. When the SLC
starts, it only evaluates event [0] during each scan interval.
Only when event [0] is evaluated as true, the SLC executes
action [0] and starts evaluating the next event. It is
possible to program 1–20 events and actions.
When the last event/action has been executed, the
sequence starts over again from event [0]/action [0].
Figure 5.4 shows an example with 4 event/actions:
Figure 5.4 Order of Execution when 4 Events/Actions are
Programmed
Comparators
Comparators are used for comparing continuous variables
(output frequency, output current, analog input, and so on)
to
xed preset values.
Par. 13-11
Comparator Operator
=
TRUE longer than.
. . .
. . .
Par. 13-10
Comparator Operand
Par. 13-12
Comparator Value
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Figure 5.5 Comparators
Logic rules
Combine up to 3 boolean inputs (TRUE/FALSE inputs) from
timers, comparators, digital inputs, status bits, and events
using the logical operators AND, OR, and NOT.
. . .
. . .
. . .
. . .
Par. 13-43
Logic Rule Operator 2
Par. 13-41
Logic Rule Operator 1
Par. 13-40
Logic Rule Boolean 1
Par. 13-42
Logic Rule Boolean 2
Par. 13-44
Logic Rule Boolean 3
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Figure 5.6 Logic Rules
Product Features
VLT
®
AQUA Drive FC 202
24 Danfoss A/S © 01/2018 All rights reserved. MG22B222
55

Danfoss VLT AQUA Drive FC 202 Specifications

General

Brand	Danfoss
Model	VLT AQUA Drive FC 202
Category	DC Drives
Language	English