btsr IS3F-485, Operating Manual

Overview

SMART KNIT 

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1 ---- OVERVIEW

 OVERVIEW

 OVERVIEW

 OVERVIEW    

System Components 

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

. 

System’s Operation Principle 

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. 

Special Features of SMART KNIT System 

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

).