4.12 Parameters: 13-** Smart Logic Control
Smart logic control (SLC) is a sequence of user-defined
actions (see
parameter 13-52 SL Controller Action
) executed
by the SLC when the associated user-defined event (see
parameter 13-51 SL Controller Event
) 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. That leads to an associated action as
illustrated:
. . .
. . .
Par. 13-11
Comparator Operator
Par. 13-43
Logic Rule Operator 2
Par. 13-51
SL Controller Event
Par. 13-52
SL Controller Action
130BB671.13
Coast
Start timer
Set Do X low
Select set-up 2
. . .
Running
Warning
Torque limit
Digital input X 30/2
. . .
=
TRUE longer than..
. . .
. . .
Illustration 4.36 Smart Logic Control (SLC)
Events and actions are each numbered and linked in pairs
(states). This means that when the 1
st
event is fulfilled
(becomes true), the 1
st
action is executed. After this, the
conditions of the 2
nd
event are evaluated and if evaluated
true, the 2
nd
action is executed, and so on. 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. This means
that when the SLC starts, it evaluates the 1
st
event (and
only the 1
st
event) in each scan interval. Only when the 1
st
event is evaluated true, the SLC executes the 1
st
action and
starts evaluating the 2
nd
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 the 1
st
event/action.
shows an example with 3 events/actions:
130BA062.14
State 1
13-51.0
13-52.0
State 2
13-51.1
13-52.1
Start
event P13-01
State 3
13-51.2
13-52.2
State 4
13-51.3
13-52.3
Stop
event P13-02
Stop
event P13-02
Stop
event P13-02
Illustration 4.37 Events and Actions
Starting and stopping the SLC
Start and stop the SLC by selecting
[1] On
or
[0] Off
in
parameter 13-00 SL Controller Mode
. The SLC always starts
in state 0 (where it evaluates
event
[0]). The SLC starts
when the
Start Event
(defined in
parameter 13-01 Start
Event
) is evaluated as true (provided that
[1] On
is selected
in
parameter 13-00 SL Controller Mode
). The SLC stops when
the
stop event
(
parameter 13-02 Stop Event
) is true.
resets all SLC parameters and
starts programming from scratch.
NOTICE
SLC is only active in auto-on mode, not hand-on mode.
Parameter Descriptions
VLT® AutomationDrive FC 361
116
Danfoss A/S © 03/2019 All rights reserved.
MG06J202
4
4
Summary of Contents for VLT AutomationDrive FC 361
Page 2: ......
