Danfoss VLT HVAC Drive FC 102, Programming Manual, Page: 108 / 250

3.13 Parameters: 13-** Main Menu - Smart
Logic
3.13.1 13-** Prog. Features
Smart logic control (SLC) is 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
evaluated as TRUE by the SLC. Events and actions are each
numbered and linked together in pairs. This means that
when
[0] event is fulfilled (attains the value TRUE), [0]
action is executed. After this, the conditions of [1] event are
evaluated and if evaluated TRUE, [1] 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
[0] event (and only [0] event ) at each scan
interval. Only when [0] event is evaluated TRUE, the SLC
executes [0] action and starts evaluating [1] event . It is
possible to programme from 1 to 20 events and actions .
When the last
event
/
action
has been executed, the
sequence starts over again from
[0] event
/
[0] action
.
Illustration 3.34 shows an example with three event/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 3.34 Example with Three Events/Actions
Starting and stopping the SLC:
Starting and stopping the SLC can be done by selecting [1]
On or [0] Off in parameter 13-00 SL Controller Mode . The SLC
always starts in state 0 (where it evaluates [0] event ). 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.
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: Function:
[0] Off Disables the Smart Logic Controller.
[1] On Enables the Smart Logic Controller.
13-01 Start Event
Option: Function:
Select the boolean (TRUE or FALSE)
input to activate smart logic control.
[0] False Enters the fixed value of FALSE in the
logic rule.
[1] True Enters the fixed value TRUE in the logic
rule.
[2] Running See parameter group 5-3* Digital
Outputs for further description.
[3] In range See parameter group 5-3* Digital
Outputs for further description.
[4] On reference See parameter group 5-3* Digital
Outputs for further description.
[5] Torque limit See parameter group 5-3* Digital
Outputs for further description.
[6] Current Limit See parameter group 5-3* Digital
Outputs for further description.
[7] Out of current
range See parameter group 5-3* Digital
Outputs for further description.
[8] Below I low See parameter group 5-3* Digital
Outputs for further description.
[9] Above I high See parameter group 5-3* Digital
Outputs for further description.
[10] Out of speed
range
[11] Below speed low See parameter group 5-3* Digital
Outputs for further description.
[12] Above speed high See parameter group 5-3* Digital
Outputs for further description.
[13] Out of feedb.
range
[14] Below feedb. low
[15] Above feedb. high
[16] Thermal warning See parameter group 5-3* Digital
Outputs for further description.
[17] Mains out of
range See parameter group 5-3* Digital
Outputs for further description.
Parameter Descriptions
VLT
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HVAC Drive FC 102
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