Main Menu - Smart Logic - Group; Prog. Features; Slc Settings - Danfoss VLT HVAC Basic Drive Programming Manual

Parameters

3.9 Main Menu - Smart Logic - Group 13

3.9.1 13-** Prog. Features

Smart Logic Control (SLC) is essentially a sequence of user
defined actions (see 13-52 SL Controller Action [x]) executed
3 3
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 programme from 1 to 20 events and actions. When the last
event/action have been executed, the sequence starts over
again from event [0]/action [0].
Start
event P13-01
Stop
event P13-02
State 4
Event 4/
Action 4
Illustration 3.1 Example with three event/actions
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.
50
State 1
Event 1/
Action 1
State 2
Event 2/
Action 2
State 3
Event 3/
Action 3
Stop
event P13-02
MG.18.B1.02 - VLT
VLT HVAC Basic Drive Programming Guide

3.9.2 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:
[0] False
[1] True
[2] Running
[3] In range
Stop
event P13-02
[4] On reference
[7] Out of current
range
[8] Below I low
[9] Above I high
[16] Thermal warning
[17] Mains out of
range
[18] Reversing
[19] Warning
[20] Alarm (trip)
[21] Alarm (trip lock)
[22] Comparator 0
[23] Comparator 1
[24] Comparator 2
®
is a registered Danfoss trademark
Select On [1] to enable the Smart Logic Control to start
when a start command is present, e.g. via a digital input.
Select Off [0] to disable the Smart Logic Control.
Function:
Select the boolean (TRUE or FALSE) input
to activate Smart Logic Control.
Enters the fixed value of FALSE in the
logic rule.
Enters the fixed value TRUE in the logic
rule.
The motor is running.
Motor runs within programmed current
ranges (4-50 Warning Current Low and
4-51 Warning Current High)
The motor runs at reference speed.
The motor current is outside the range
set in 4-18 Current Limit.
The motor current is lower than set in
4-50 Warning Current Low.
The motor current is higher than set in
4-51 Warning Current High.
The thermal warning turns on when the
temperature exeeds the limit in the
motor, the frequency converter or the
thermistor.
The frequency converter is reversing.
A warning is present.
An alarm is present.
A trip lock alarm is present.
Use the result of comparator 0 in the
logic rule.
Use the result of comparator 1 in the
logic rule.
Use the result of comparator 2 in the
logic rule.