Parameters: 13-** Smart Logic Control - Danfoss VLT AutomationDrive FC 302 Programming Manual

Parameter Descriptions

3.14 Parameters: 13-** Smart Logic Control

Smart Logic Control (SLC) is essentially a sequence of user-
defined actions (see parameter 13-52 SL Controller Action
[x]) executed by the SLC when the associated user-defined
event (see parameter 13-51 SL Controller Event [x]) is
3 3
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. 13-51
SL Controller Event
Running
Warning
Torque limit
Digital input X 30/2
. . .
Par. 13-43
Logic Rule Operator 2
. . .
. . .
Par. 13-11
Comparator Operator
=
TRUE longer than..
. . .
. . .
Illustration 3.48 Smart Logic Control (SLC)
Events and actions are each numbered and linked in pairs
(states). This means that when event [0] is fulfilled (attains
the value TRUE), action [0] is executed. After this, the
conditions of event [1] are evaluated and if evaluated
TRUE, action [1] 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 event [0] (and only event
[0]) each scan interval. Only when event [0] is evaluated
TRUE, the SLC executes action [0] and starts evaluating
event [1]. It is possible to program from 1 to 20 events and
actions.
When the last event/action has been executed, the
sequence starts over again from event [0]/action [0].
Illustration 3.49 shows an example with 3 events/actions:
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®
VLT AutomationDrive FC 301/302
Illustration 3.49 Events and Actions
Par. 13-52
SL Controller Action
Starting and stopping the SLC
Coast
Start timer
Start and stop the SLC by selecting [1] On or [0] Off in
Set Do X low
parameter 13-00 SL Controller Mode. The SLC always starts
Select set-up 2
. . .
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. Parameter 13-03 Reset SLC resets all SLC parameters
and starts programming from scratch.
NOTICE
SLC is only active in Auto mode, not Hand On mode.
3.14.1 13-0* SLC Settings
Use the SLC settings to activate, deactivate and reset the
smart logic control sequence. The logic functions and
comparators are always running in the background, which
opens for separate control of digital inputs and outputs.
13-00 SL Controller Mode
Option:
[0]
[1]
13-01 Start Event
Select the boolean (TRUE or FALSE) input to activate Smart Logic
Control.
Option:
[0]
[1]
[2]
[3]
Danfoss A/S © Rev. 10/2014 All rights reserved.
Start
event P13-01
State 1
13-51.0
13-52.0
Stop
event P13-02
State 4
13-51.3
13-52.3
Stop
event P13-02
Function:
Off Disables the Smart Logic Controller.
On Enables the Smart Logic Controller.
Function:
False Select the boolean (TRUE or FALSE) input
to activate Smart Logic Control.
Enters the fixed value - FALSE
True Enters the fixed value - TRUE.
Running The motor is running.
In range The motor is running within the
programmed current and speed ranges
set in parameter 4-50 Warning Current
State 2
13-51.1
13-52.1
Stop
event P13-02
State 3
13-51.2
13-52.2
MG33MJ02