Parameters: 13-** Smart Logic Control - Danfoss VLT AutomationDrive FC 301 Programming Manual

Parameter Descriptions

3.13 Parameters: 13-** Smart Logic Control

Smart logic control (SLC) is a sequence of user-defined
actions (see parameter 13-52 SL Controller 1 Action)
executed by the SLC when the associated user-defined
event (see parameter 13-51 SL Controller 1 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. 13-51
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 3.52 Smart Logic Control (SLC)
Events and actions are each numbered and linked in pairs
(states). This means that when the 1
(becomes true), the 1 st action is executed. After this, the
nd
conditions of the 2 event are evaluated and if evaluated
nd
true, the 2 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
only the 1 event) in each scan interval. Only when the 1
event is evaluated true, the SLC executes the 1
nd
starts evaluating the 2 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
Illustration 3.53 shows an example with 3 events/actions:
Four concurring sequences can be defined with each up to
20 event and action pairs. The sequences are executed at
M0013101
Programming Guide
Par. 13-52
SL Controller Action
Coast
Start timer
Set Do X low
Select set-up 2
. . .
st
event is fulfilled
st
event (and
st
st action and
st
event/action.
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the same time but operate separately. For example,
sequence 1 may have executed 3 actions, while sequence
2 still waits for its first event to occur. In this example,
parameter 13-00 [0], parameter 13-01 [1], and parameter
13-02 [2] corresponds to sequence 1, sequence 2, sequence
3, and the like.
NOTICE
Comparators Flip-Flops, Timers, and Logic Rules are
shared between sequences.
Start
event P13-01
State 1
13-51.0
13-52.0
Stop
event P13-02
State 4
13-51.3
13-52.3
Illustration 3.53 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.
Parameter 13-03 Reset SLC resets all SLC parameters and
starts programming from scratch.
NOTICE
SLC is only active in auto-on mode, not hand-on mode.
3.13.1 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
Array [4]. An array with 4 elements [0]-[3] is shown in the display.
Option: Function:
[0] Off Disables the smart logic controller.
[1] On Enables the smart logic controller.
State 2
13-51.1
13-52.1
Stop
event P13-02
State 3
13-51.2
13-52.2
Stop
event P13-02
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3 3