Chapter 1 - Overview; System Components; System's Operation Principle; Special Features Of Smart Knit System - btsr SMART KNIT Operating Manual

Overview

System Components

System's Operation Principle

Special Features of SMART KNIT System

The SMART KNIT system includes a control/programming terminal and a
variable number of IS3 sensors connected to the terminal by means of interface
modules (up to 8).
Each interface module (SM-DIN) can manage up to 100 IS3 sensors.
The maximum theoretical number of sensors connectable to the system is then
(8 x 100) = 800.
In practice, the maximum number of sensors actually manageable results from the
maximum number of feeds (120) multiplied by the maximum number of sensors
per feed (6), i.e. 720.
The sensors' detection features (Start Frequency → F_START, Stop Frequency →
F_STOP, Sensitivity → SENS, Reaction Time → DELAY) can be programmed
according to the type of yarn being processed.
These features must be programmed on each sensor and can be changed according
to the article which is being processed.
The terminal has in fact the function of programming and, if necessary, changing
the sensors' features, according to the production requirements.
The main task of SMART KNIT is to provide a continuous production
monitoring, as well as the correct yarn running sequence (CONTROL function) and
comparing each individual production cycle with the sequence defined by the
control algorithm (P_ABCD), thus detecting possible deviations with respect to the
above mentioned sequence and stopping the knitting machine when the detected
errors exceed the set tolerance.
The SMART KNIT system has a set of unique features which make it a true
microcomputer dedicated to programming/control of production and statistical
analysis of technical faults.
During the production monitoring phase the system stores all the technical faults
each sensor founds, allowing the machine operator to analyse which and how
many technical faults have been detected by each individual sensor.
The main advantages of this solution can be summarised as follows:
! Absolute flexibility:
thanks to the possibility of quickly changing the sensors' program, according to
the article to be processed.
! Maximum simplicity:
concerning the installation as well as programming and administration of the
system.
! Maximum precision:
the possibility of programming the technical features of sensors according to
the type of yarn to be processed, guarantees a perfect symbiosis between sensor
and yarn.
! Automatic adaptation of parameters to the machine speed:
the possibility to setup 2 different sets of parameters, associated with two
different machine speeds (P_SLOW and P_FAST) allows you to control in the
best possible way the yarn running status, both during the ramp stages
(P_SLOW) and during the normal rate stage (P_FAST).
SMART KNIT
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