Danfoss VLT CDS 803 User Manual

3.2.2.8 Programmable Set-ups
The drive has 2 setups that can be independently programmed. Using multi-setup, it is possible to switch between independently
programmed functions activated by digital inputs or a serial command. Independent set-ups are used, for example, to change refer-
ences, or for day/night or summer/winter operation, or to control multiple motors. The LCP shows the active setup.
Setup data can be copied from drive to drive by downloading the information from the removable LCP or by using VLT® Motion
Control Tool MCT 10.
3.2.2.9 Smart Logic Control (SLC)
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.
The condition for an event can be a particular status, or that the output from a logic rule or a comparator operand becomes TRUE.
The condition leads to an associated action as shown in
Illustration 9.
. . .
. . .
Par. 13-11
Comparator Operator
Par. 13-43
Logic Rule Operator 2
Par. 13-51
SL Controller Event
Par. 13-52
SL Controller Action
e30bb671.13
Coast
Start timer
Set Do X low
Select set-up 2
. . .
Running
Warning
Torque limit
Digital input X 30/2
. . .
=
TRUE longer than..
. . .
. . .
Illustration 9: SLC Event and Action
Events and actions are each numbered and linked in pairs (states), which means that when event [0] is fulfilled (attains the value
TRUE), action [0] is executed. After the 1
st
action is executed, the conditions of the next event are evaluated. If this event is evaluated
as true, then the corresponding action is executed. 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. When the SLC starts, it only evaluates event
[0] during each scan interval. Only when event [0] is evaluated as true, the SLC executes action [0] and starts evaluating the next
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 event [0]/action [0]. An example with 4 events/
actions is shown in Illustration 10:
AJ330233902305en-000201 / 130R059618 | Danfoss A/S © 2021.05
Product Overview
VLT® Compressor Drive CDS 803
Design Guide

Danfoss VLT CDS 803 Specifications

General

Brand	Danfoss
Model	VLT CDS 803
Category	DC Drives
Language	English