Main Menu - Smart Logic - Group - Danfoss VLT FC 100 Series Programming Manual

Parameter Description

3.13 Main Menu - Smart Logic - Group 13

3.13.1 13-** Prog. Features Prog. Features
3 3
Smart Logic Control (SLC) is essentially a sequence of user-
defined actions (see 13-52 SL Controller Action [x]) executed
by the SLC when the associated user-defined event (see
13-51 SL Controller Event [x]) is evaluated as TRUE by the
SLC. Events and actions are each numbered and linked
together in pairs. This means that when event [0] is fulfilled
(attains the value TRUE), action [0] is executed. After this,
the conditions of event [1] will be evaluated and if
evaluated TRUE, action [1] will be executed and so on.
Only one event will be 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 will be
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, will the SLC
execute action [0] and start 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]. The
figure shows an example with three event/actions:
Figure 3.31
Starting and stopping the SLC:
Starting and stopping the SLC can be done by selecting
On [1] or Off [0] in 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 13-01 Start
Event) is evaluated as TRUE (provided that On [1] is
selected in 13-00 SL Controller Mode). The SLC stops when
the Stop Event (13-02 Stop Event) is TRUE. 13-03 Reset SLC
resets all SLC parameters and starts programming from
scratch.
3-78
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VLT HVAC Drive Programming Guide
3.13.2 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
Option:
[0]
*
[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
[9]
[10]
[11]
[12]
[13]
[14]
[15]
MG11CD22 - VLT ® is a registered Danfoss trademark
Function:
Off Disables the Smart Logic Controller.
On Enables the Smart Logic Controller.
Function:
Select the Boolean (TRUE or FALSE)
input to activate smart logic control.
FALSE Enters the fixed value of FALSE in the
logic rule.
TRUE Enters the fixed value TRUE in the
logic rule.
Running See parameter group 5-3* for further
description.
In range See parameter group 5-3* for further
description.
On reference See parameter group 5-3* for further
description.
Torque limit See parameter group 5-3* for further
description.
Current limit See parameter group 5-3* for further
description.
Out of current See parameter group 5-3* for further
range description.
Below I low See parameter group 5-3* for further
description.
Above I high See parameter group 5-3* for further
description.
Out of speed
range
Below speed low See parameter group 5-3* for further
description.
Above speed high See parameter group 5-3* for further
description.
Out of feedb.
range
Below feedb. low
Above feedb. high