Main Menu - Smart Logic - Group - Danfoss VLT CDS 803 Programming Manual

Compressor drive
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Parameters
8-84 Slave Messages Sent
Range:
Function:
0
[0 -
This parameter shows the number
*
4294967295 ]
of messages sent from the slave.
8-85 Slave Timeout Errors
Range:
Function:
0
[0 -
This parameter shows the number
*
4294967295 ]
of slave timeout errors.
8-88 Reset FC port Diagnostics
Reset all FC port diagnostic counters.
Option:
Function:
[0]
Do not reset
*
[1]
Reset counter
3.8.6 8-9* Bus Feedback
8-94 Bus Feedback 1
Range:
Function:
0
[-32768 -
Write feedback to this parameter
*
32767 ]
via the serial communication port.
Select this parameter in
parameter 20-00 Feedback 1 Source
or parameter 20-03 Feedback 2
Source as a feedback source. Hex
value 4000 h corresponds to 100%
feedback/range is ±200%.
8-95 Bus Feedback 2
Range:
Function:
0
[-32768 -
Write feedback to this parameter
*
32767 ]
via the serial communication port.
This parameter must be selected in
parameter 20-00 Feedback 1 Source
as a feedback source. (Hex value
4000 h corresponds to 100%
feedback/range is ±200%).

3.9 Main Menu - Smart Logic - Group 13

3.9.1 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 SLC evaluates the
associated user-defined event (see parameter 13-51 SL
Controller Event [x]) as true.
Events and actions are each numbered and linked in pairs.
This means that when [0] event is fulfilled (attains the
value true), [0] action is executed. After executing this
action, the conditions of [1] event is evaluated. If it is
evaluated as true, [1] action is executed, and so on. Only 1
MG18P202
Programming Guide
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) each scan interval. Only when [0] event is
evaluated as true, the SLC executes [0] action and starts
evaluating [1] event. It is possible to program from 1–20
events and actions. When the last event/action has been
executed, the sequence starts over again from [0] event/[0]
action.
Stop
event P13-02
Illustration 3.11 Example with 3 Event/Actions
Starting and stopping the SLC
To start or stop the SLC, select [1] On or [2] 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 (if [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 the beginning.
3.9.2 13-0* SLC Settings
To activate, deactivate, and reset the smart logic control
sequence, use the SLC settings. 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
To enable the smart logic control to start when a start command
is present, for example, via a digital input, Select [1] On. To
disable the smart logic control, select [0] Off.
Option:
[0]
*
[1]
Danfoss A/S © 06/2019 All rights reserved.
Start
event P13-01
State 1
13-51.0
13-52.0
State 2
13-51.1
13-52.1
State 4
13-51.3
13-52.3
State 3
13-51.2
13-52.2
Stop
event P13-02
Function:
Off
Disables the smart logic controller.
On
Enables the smart logic controller.
3
3
Stop
event P13-02
45

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