btsr SMART CLEARER User manual

SMART CLEARER & ISSC.
YARN CONTROL SYSTEM
Operating Manual
Rev. 3.0 – July 2003 ENGLISH

SMART CLEARER – Rev. 3.0 – July 2003
Copyright 2003 - BTSR – All rights reserved.
This manual is intended for the users of the SMART CLEARER system. It is suggested to carefully read
the instructions described in this manual before making the connections and use the system.
BTSR reserves the right to change in any time the contents of this manual, without notice.
For any technical or commercial problem, please contact your local BTSR dealer or call directly BTSR
customer service centre. We will be glad to meet your needs.
Thank you for your trust and good job.
The product described herein is compliant with the requirements of 89/336/EEC EMC Directive and
73/23/EEC Low Voltage Directive.
All BTSR products are covered by patents and adopt exclusive, profitable and high tech. Solutions.
BTSR® is a registered trademark “Best Technology Study & Research” of BTSR International S.p.A.
Lycra® is a trademark byDuPont

Table of contents
SMART CLEARER - i -
TABLE OF CONTENTS
TABLE OF CONTENTSTABLE OF CONTENTS
TABLE OF CONTENTS
INTRODUCTION
How to use this manual.............................................................................................................................................. I.1
Symbols used .............................................................................................................................................................. I.1
Chapter 1 - OVERVIEW
System components ....................................................................................................................................................1.1
System’s Operation Principles ..................................................................................................................................1.1
Special Features of SMART CLEARER system .....................................................................................................1.1
General Features of SMART systems ......................................................................................................................1.2
Chapter 2 –TECHNICAL DATA AND INSTALLATION
Technical Features .....................................................................................................................................................2.1
Installation ..................................................................................................................................................................2.1
Interface Connectors on SMART CLEARER.....................................................................................................2.2
Connection Cables and Power Supply Devices....................................................................................................2.3
Example of Generic Application Connection.......................................................................................................2.4
Chapter 3 – OPERATION
SMART CLEARER Terminal Features ..................................................................................................................3.1
ISSC.. Sensor Features ..............................................................................................................................................3.4
Function of the ISSC.. Sensors..................................................................................................................................3.4
Interface specification ...............................................................................................................................................3.5
Interpretation of the signalling lights located on the sensors .................................................................................3.6
Parameters that affect the sensor detection features ..............................................................................................3.7
Preliminary operations for using the SMART CLEARER terminal...................................................................3.11
Operating Sequences .............................................................................................................................................3.12
Machine Start Procedure.........................................................................................................................................3.13
Preliminary Instructions for the Correct Use of ISSC.. Sensors......................................................................3.13
Restart after an Alarm Condition on a Single Position ....................................................................................3.13
Enabling the SETUP Menu Functions (CONFIG)................................................................................................3.14
Enabling the SETUP Menu Functions (NEW, MODIFY, ERASE).....................................................................3.15
Enabling the WORK Menu Function.....................................................................................................................3.16
Enabling the READ Menu Function ......................................................................................................................3.16
CONTROL Function ..............................................................................................................................3.17
DEVICE Parameters setting for Initial installation ........................................................................3.18
DCNTR Configuration of Sensor delay time before entering the Control status........................3.19
lk-ULK Enabling/Disabling the Touch Light button operation...................................................3.20
MO-CTR Configuring the system operation in either MONITOR mode
or CONTROL mode ..........................................................................................................3.21
EN-NCO Configuring the level of ENABLE signal as Normally Closed or Normally Open.......3.23
ST-NCO Configuring the level of STOP signal as Normally Closed or Normally Open.............3.24

Table of contents
- ii - SMART CLEARER
ST-CP Stop signal Configuration as Continuous or Pulse Signal ..............................................3.24
CAL-AM Configuration of Sensor Automatic/Manual Calibration...............................................3.26
ABS/REL Configuring the Sensor Operating Mode.........................................................................3.27
KEYCODE Password to access SETUP and WORK menus ..............................................................3.28
CLOCK Reading/setting the printer Clock-Calendar (rtc)...........................................................3.29
SENSOR TEST Sensors Test ........................................................................................................................3.30
COM TEST Testing the Efficiency Rate over the Communications Line between the
SMART CLEARER Terminal and Sensors ....................................................................3.31
VERS-UPG Software Version Test and Update...................................................................................3.32
NEW Creating a New Article ......................................................................................................3.33
SPEED - Creating a New Article - Machine collection speed ........................................3.35
NEP - Creating a New Article - Characteristics of the Nep defect ................................3.36
SLUB (-)..............................................................................................................................3.37
SLUB (+) Creating a New Article - Characteristics of the Slub/Tangle defect............3.38
YARN(-) - Creating a New Article - Characteristics of the Missing Ply defect............3.39
YARN(+) - Creating a New Article - Characteristics of the Added Ply defect............3.40
NOYARN - Creating a New Article - Characteristics of the Yarn Missing Defect......3.41
MODIFY Modifying an existing Article............................................................................................3.42
ERASE Erasing an existing Article ................................................................................................3.42
SCAN Displaying Articles currently loaded in the sensors........................................................3.43
LOAD Loading an article in sensor memory...............................................................................3.44
UNLOAD Unloading articles from the sensor memory....................................................................3.45
READ Real time reading of the Title detected by Sensor XXX .................................................3.46
ZEROSET Manual Activation of ZEROSET Procedure...................................................................3.46
PRINT REPORT......................................................................................................................................................3.47
Chapter 4 – TROUBLESHOOTING AND MAINTENANCE
Troubleshooting..........................................................................................................................................................4.1
Ordinary Maintenance ..............................................................................................................................................4.2
Repairs ........................................................................................................................................................................4.2
Updating the Software Version on SMART Terminals ..........................................................................................4.3
Product Summary Tables..........................................................................................................................................4.4
Appendix A - QUICK REFERENCE ............................................................................................................................ A.1
Appendix B - INSTALLATION EXAMPLE ................................................................................................................. B.1

Introduction
SMART CLEARER - I.1 -
INTRODUCTION
INTRODUCTIONINTRODUCTION
INTRODUCTION
Congratulations for choosing a BTSR product.
With our SMART CLEARER yarn control system, you got an innovative, unique
solution, able to offer you multiple advantages concerning quality control of your
production. SMART CLEARER has been designed for application on textile
machines dedicated to the preparation of yarn (cone winder, doubling, twisting
frame, interlacing machines, etc.), which during the entire productive cycle utilise
a specified number of yarns on several sections, in continuous mode. In this kind of
application it is necessary to immediately detect a possible technical fault along the
yarn, stop the position where the fault occurred and signal the fault. The task of the
ISSC.. series BTSR sensors is to detect these technical failures.
How to use this manual
This Operation Manual is divided into 4 Chapters and 2 Appendices.
Chapter 1 – Overview describes the main features, components and how the
system works.
Chapter 2 – Technical Data and Installation gives the necessary instructions to
install the system correctly.
Chapter 3 – Operation gives a detailed description of the necessary operations to
setup and program the system according to the application needs.
Chapter 4 – Troubleshooting and Maintenance provides a quick guide to solving
the main technical faults of the system.
Appendix A – Quick reference summarises the sequence of operations that staff
who have had sufficient experience in handling the system, have to carry out in
order to setup and program the system.
Appendix B – Electrical Connections include a connection diagram showing the
use of the SMART CLEARER system and ISSC.. sensors in a general purpose
application environment.
Symbols used
Highlights notes, warnings and subjects to which the attention of the reader
should be directed.
Indicates a particularly sensitive situation which could have an effect
on the safety or proper operation of the system.
ISSC.. The ISSC.. BTSR sensor family includes some variants indicated by the
letters following the ISSC term. (e.g. ISSC-A). Within this manual we will
always use the generic term ISSC..
While scrolling through features that can be activated from the SETUP and
WORK menus, this symbol indicates the procedure that describes the
specific feature. The same symbol is reported at the beginning of the page,
which describes in details the function itself.

Introduction
- I.2 - SMART CLEARER
Within the Appendix A “Quick Reference” the push-buttons of SMART control
panel are shown as follows:
Meaning of the Capital/Small Letters on Display
Within the functions that provide two programmable alternative options, i.e.:
Normally Open or Normally Closed Contact
Enabled/Disabled Condition
Pulse/Continuous Signalling, etc.
The letters shown on display as capital letters indicate to the currently active
choice, while the small letters refer to the possible alternative choice.
Example:
Item Function Current Programming
ST-NCo NCo = normally closed
ST-NcO
Stop Output programmable as
Normally Closed (NC) or Normally
Open (NO) contact NcO = normally open
ST-Cp Cp = continous signal
ST-cP
Stop output programmable as
Continous Signal (C) or Pulse Signal
(P) cP = pulse signal
LK-ulk LK = “touch light” disabled
lk-UKL
Enabling (ULK) or disabling (LK) the
“touch light” button. ULK = “touch light” enabled
EN-NCo NCo = normally closed
EN-NcO
Enable signal programmable as
Normally Closed (NC) or Normally
Open (NO) contact NcO = normally open
MO-ctr MO = Monitor
mo-CTR
Monitor (MO) or Control (CTR)
CTR = Control
CAL-aM aM = Manual
CAL-Am
Manual (M) or Automatic (A)
calibration mode Am = Automatic
Alternative items:
Within the description of configuration/programming procedures the alternative
screen shots are shown with this bracket symbol.

Overview
SMART CLEARER - 1.1 -
1
11
1 -
--
- OVERVIEW
OVERVIEWOVERVIEW
OVERVIEW
System components
The SMART CLEARER system consists of a control/programming terminal and
a variable number of ISSC.. type sensors (up to 200) connected to the terminal
using specific interface cables.
System’s Operation Principles
The sensors’ detection features: Nep (NEP), yarn reduction (SLUB-), Yarn
Slub/Tangle (SLUB-), Missing ply (YARN -), Added ply (YARN +), Yarn broken
(NOYARN), Yarn running speed (SPEED), Control Activation delay (D-CONTR)
depend on the type of yarn (article) 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, as conditions change, it
can vary the sensors’ features, according to the quality control requirements, as
well as the function of displaying either globally or selectively the counters that
record the different types of defects by the sensors.
Special Features of SMART CLEARER system
The SMART CLEARER system has a set of unique features which make it a true
microcomputer dedicated to the yarn quality control.
SMART CLEARER is a fully parametric system; this means that for each type of
defect the use can freely define the desired parametric values. When these values
are exceeded, the system signals a fault condition.
The programming (and reprogramming) phase of the sensors is limited to an
extremely quick and easy operation. It consists of communicating the name of the
article to the sensor or to a specific set of sensors on the machine, which the
sensor(s) will have to detect.
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 system programming and administration.
Maximum accuracy:
the possibility of programming the detection capability of the sensors
according to the type of yarn to be processed guarantees a perfect symbiosis
between sensor and yarn.
Furthermore, the possibility to print a report containing the summary of failures
detected by the sensors (Production Report) offers a valuable support for
keeping and improving the quality level of production.

Overview
- 1.2 - SMART CLEARER
General Features of SMART systems
ISS.. Sensors (Image Smart Scanning…) (BTSR Patents)
The ISS.. sensors are connected to the SMART control terminal using just one
multi-connector cable, or specific single-connector cables.
Automatic numbering (BTSR Patents)
The identification of sensors is performed by the system by means of an
automatic numbering procedure.
Programmable Functions
The system allows programming and saving all the quality control
characteristics associated with various articles.
Multi-sensor System
The system allows connecting up to 200 yarn quality control sensors of the
ISSC.. series.
Easy Monitoring
Besides the information shown on graphical display of SMART CLEARER,
each ISSC.. sensor has a red LED that, when flashing, indicates the type of
fault detected.
Sensor Diagnostics
Each ISSC.. sensor signals its operational status by means of two LEDs.

Technical data and installation
SMART CLEARER - 2.1 -
2
22
2 –
––
– TECHNICAL DATA AND INSTALLATION
TECHNICAL DATA AND INSTALLATIONTECHNICAL DATA AND INSTALLATION
TECHNICAL DATA AND INSTALLATION
Technical Features
SMART CLEARER Terminal
Power supply voltage 24 Vdc ± 10%
Maximum Absorption 100 mA
Dimensions 135 x 95 x 40 mm
Temperature range 10° - 60 °C
LCD graphic Display 80 x 40 mm
Integrated Touch-pad 5 membrane buttons with integrated red LED
Protection 2 fuses 5 x 20 – 1A
ISSC.. Sensors
Power supply voltage 12 .. 24 Vdc ± 20%
Absorption 30 mA (max 50 mA)
ENABLE input logic Programmable (NO - NC)
STOP output NPN open collector
STOP output logic Programmable (NO - NC) (cont. – pulse, 2sec.)
"Auto-calibration" function Auto-calibration of sensor
STOP output protection Protection against over-voltages and short-circuits
STOP output max current 200 mA continuous; 500 mA peak
Activation delay Programmable from 1 to 250 sec
Signaling With integrated LED
Dimensions 15 x 15 x 36,5
Temperature range 10° - 50 °C
Installation
The installation of the SMART CLEARER system depends on the type of
application and on the number of sensors to be connected. When the number of
sensors is limited, it is possible to connect them directly to the SMART terminal,
otherwise it is necessary to use a stabilized power supply PSU 10A. This is
capable of supplying up to 8 independent backbone lines to which it is possible to
connect several sensor chains (up to a maximum of 100 sensors). The number of
sensors may be extended to 200, using two PSU 10A power supply.

Technical data and installation
- 2.2 - SMART CLEARER
Interface Connectors on SMART CLEARER
Concerning all electrical systems, it is a recommended rule to ensure that the ground cable
(GND) is connected to the sensor support.

Technical data and installation
SMART CLEARER - 2.3 -
Connection Cables and Power Supply Devices
To correctly install the SMART CLEARER system and sensors, it is necessary to
use a certain number of connecting cables provided by BTSR; their length and
type depend on the specific requirements and application types.
The following table lists at glance the types and lengths of the main connection
cables, which BTSR may provide. For further details and queries about the cables
and options available, please contact your local BTSR dealer.
SMART Power Cables (I/O Connectors)
FE10/200 Length 200 cm
FE10/500 Length 500 cm
Cables 4 x 0.35 mm with Female to Female Connector for connections
between SMART CLEARER /PSU 10A and MA2FE8 Doubler Cable
FE100/FEC Length 100 cm
FE200/FEC Length 200 cm
FE300/FEC Length 300 cm
FE400/FEC Length 400 cm
Doubler Cable from one Male to two Female with Independent Stop
and Ground outputs to Connect a Solenoid-valve, Cutter, Alarm
Signaling Light, etc.
MA2FE8
Extension Cable 4x0.35 mm with Male and Female connector.
MA50/FEC Length 50 cm
MA100/FEC Length 100 cm
MA200/FEC Length 200 cm
Transformers for SMART CLEARER
TRF1524/100 Output 15/24 Vac 100VA (can be used with up to 40 sensors)
TRF24/300VA Output 24 Vac/300VA (can be used with more than 40 sensors)
Stabilized Power Supply with 24 Vdc output, 10A Peak, 6A
continuous
PSU 10A Required with more than 40 sensors (up to a maximum of 100
sensors for each PSU 10A)
Printer for SMART CLEARER
PRNT 01 Printer with clock-calendar feature for production report, including
CV485/232 conversion interface cable

Technical data and installation
- 2.4 - SMART CLEARER
Example of Generic Application Connection
(A) = Machine Start/Stop Contact– ENABLE. For further details see “ENABLE Signal Function” page 3.5
Concerning all electrical systems, it is a recommended rule to ensure that the ground
cable (GND) is connected to the sensor support.

Operation
SMART CLEARER -3.1 -
3
33
3 –
––
– OPERATION
OPERATIONOPERATION
OPERATION
SMART CLEARER Terminal Features
As in all SMART BTSR systems,the operation of SMART CLEARER system is
controlled by just 5 membrane buttons and it is monitored by a LCD graphic
display, which guides the operator through all programming and administration
phases of the system, by means of straight-forward messages which can be
understood clearly and immediately.
On the top left hand side of each button there is a red LED, which indicates that the
button is pressed down.
The display screen includes two separate zones used respectively for displaying
messages to the operator during the system programming and administration
phases and for signalling the operating status and levels in which the system is
working .
The following picture shows the location of the buttons and display zones that
constitute the control panel of the SMART CLEARER system.

Operation
- 3.2 - SMART CLEARER
1. ENTER button
It allows you to activate the function selected from the menu (indicated by the
symbol >), to move to the programming of the displayed function or to confirm the
setting value displayed on the messages screen.
2. RESET button
It allows you to return to the previous level of the menu (next upper level), without
continuing with the currently selected function, or without confirming the value of
a setting entered by mistake.
3. NEXT CY button
During navigation within the menus this button allows you to select the next
option within the same menu level; this button has a cyclical function in the
sense that when the last choice from the menu has been selected, it returns to the
first option of the same menu.
When alphanumeric data are entered (for instance the Article Name or Keycode
access), this button allows you to increase the character displayed where the
cursor is located, according to the following cyclic sequence:
When entering numeric data (for example the number of sensors) it allows you
to increase the numeric value of the field. If it is held down continuously the
numeric field increments more rapidly.
4. CONTROL Button
During parameter programming, it allows changing the position of the cursor.
5. REPEAT button
During navigation within the menus this button allows you to select the
previous option within the same menu level; this button has a cyclical function
in the sense that when the first choice of menu is selected it returns to the last
option of the same menu.
When alphanumeric data are entered (for instance the Article Name or Keycode
access), this button allows you to decrease the character displayed where the
cursor is positioned, according to the following cyclic sequence:
When entering numeric data (for example the number of sensors) it allows you
to decrease the numeric value of the field. If it is held down continuously the
numeric field decrements more rapidly.

Operation
SMART CLEARER -3.3 -
6. Operator’s Message Area:
The menu choices, or settings for the selected function during programming or
setup phase of the system as well as service messages are displayed with large size
fonts (1.5 x 0.8 cm), easy to read even from a distance, when the system is running
normally. In other words, it shows all the necessary information to guide the
operator step by step through the programming phase and interactive management
of the system.
When the displayed lines refer to the menu items, the selected one is indicated with
the symbol >.
The presence of a flashing cursor (---) indicates the position where the operator
can enter an alphanumeric character or variable setting which will replace the value
currently displayed.
7. Operating Status Signalling Area
To enable a more direct and evident interpretation of the operating context in
which you are working, on the right hand side and bottom side of the operator
message area, 16 rectangular boxes (labels) are implemented. They display the
operating status of the system, and the hierarchic level of the menu at which you
are operating.
More specifically, the PROGRAM label indicates that you are operating in one of
the following modes: configuration, programming or data transmission to the
sensors.
The CONTROL label indicates that the system is operating normally with all
monitor functions enabled, and according to the parameters currently set in the
system. In this phase the message display indicates CONTROL OK.
The ERROR label indicates that an error has been detected during normal
operation of the system. In this case the Message area shows the type of error
detected (for further information please refer to Operations Sequences in this
chapter and to chapter 4 – Troubleshooting and Maintenance).
The labels P1 .. P5 indicate the hierarchic level of the menu in which you are
operating. P1 is the highest level, P5 is the lowest hierarchical level. To move
from an upper to a lower level you must normally press down the ENTER button,
while to do the opposite, i.e. going from a lower to an upper level you must press
the RESET button.
The level indication P1 .. P5 can be particularly useful during the initial phase
when one is not yet familiar with the use of the programming functions. For
example, if the system indicates P1 it is useless to press the RESET button, as the
system is already in the main menu and it is not possible to select a higher level of
the menu.
SMART
CLEARER

Operation
- 3.4 - SMART CLEARER
ISSC.. Sensor Features
The ISSC.. devices are electronic clearers able to detect, due to sophisticated
control technique, the image variation signalling possible anomalies and yarn
quality level. Thanks to the image variation technique, ambient/yarn conditions like
humidity, conductivity and machine vibrations cannot influence the ISSC.. device,
furthermore the image variation technique requires no contact with the yarn and
allows a perfect monitoring without affecting the characteristics (e.g. tension) of
the yarns. ISSC.. devices can be used for yarn quality control (under both static
and dynamic conditions) which, thanks to an innovative patented technique (Smart
Scanning Sensor) combined to the advanced yarn control terminal SMART
CLEARER don't need complex wirings and long installation times, allowing you
to manage up to 200 positions.
The ISSC.. devices are fully programmable for an easy implementation of quality
control of any kind of yarn/application. The main quality control and failure
detection functions are the following:
Neps (nep)
Yarn reduction (slub-)
Slubs and tangles (slub +)
Added yarns (yarn +)
Missing yarns (yarn -)
Yarn not present/broken (noyarn)
As the ISSCs.. are parametric devices, it is possible to set freely title error
percentages and lengths referred to the above mentioned defects, easily adapting
quality control to the real needs. The ISSC.. devices are very easy to use as they are
ready to accommodate a large variety of accessories that make them suitable to the
quality control of any type of yarn.
Function of the ISSC.. Sensors
The ISSC.. sensors provide the real time control of the yarn running inside the
buckle and, in case of defect, they either immediately stop the machine position or
activate solenoid-valves, cutters, or other control devices, automatically signalling
which sensor, among those connected, was the first which intervened to stop the
position.
The ISSC.. sensors have two signalling lights (green LED,and red LED) and a
“Touch Light” button.
The “Touch Light” button is used to carry out the following operations: automatic
sensor numbering, error reset and Autocalibration (when operating in manual
mode).
During the automatic numbering of the sensors (flashing green LED) the Touch
Light assigns to the sensor the number displayed in the Device configuration
screen.
Touch Light

Operation
SMART CLEARER -3.5 -
Interface specification
The ISSC.. sensors communicate with the external world by means of the
following signals:
1 Output signal (STOP) programmable via software as Normally Open (NO)
or Normally Closed (NC), continuous (C) or pulse (2 sec.) (P) signal
1 Input signal (ENABLE) programmable via software as Normally Open
(NO) or Normally Closed (NC)
2 Optical Output signals (green Led and red Led)
1 Optical Button (Touch Light) used by the operator for sensor numbering,
for STOP signal de-activation and for the autocalibration function.
STOP Signal Function
The STOP signal is an OPEN COLLECTOR output by means of which the ISSC..
sensor signals a defect detection. If the output was programmed as NO, as soon as
a defect is detected, the sensor activates the STOP output and keeps it active until it
is reset using the Touch Light button or through the ENABLE input, as shown in
the following figure and in the figure of the next page.
The sensor signals a defect (Red LED Flashing )
The sensor releases the STOP signal when skimming the Touch Light or when activating the
enable signal, and, after waiting for a time corresponding to "DELAY CONTROL" (Green LED
flashing) resumes the normal control (Green LED permanently lit).
Electrical Characteristics of the STOP Signal.
Protection against short-circuits
Collector continuous current: 200 mA
Peak collector current : 500 mA
Vce = 1.2V with I_ collector = 500mA
ENABLE Signal Function
The ENABLE signal represents for the ISSC.. sensor an Input signal having two
different effects on its operation, depending on the STOP signal status.
If the sensor did not activate its STOP output, the activation of ENABLE signal
causes the sensor to be disabled, signalled by one flash of the red led; the green led
blinks until the ENABLE Input is released. The following figure shows an example
of ENABLE signal programmed as NO.
The sensor is disabled after one flash of the Red LED and the Green LED starts blinking.
The sensor is re-enabled after one flash of the Red LED and waits for a time corresponding to
DELAY CONTROL (green LED flashing) before resuming the normal control (green LED
permanently lit).
If, on the contrary, the sensor activated its STOP output, when the ENABLE signal
too is activated, the ISSC.. device releases the STOP signal, but still maintains the
Red LED signalling until the ENABLE signal is released and, after waiting for a
time corresponding to DELAY CONTROL, it resumes the normal yarn control.

Operation
- 3.6 - SMART CLEARER
The following figure shows an example, in case of ENABLE signal programmed
as NO.
The sensor signals a defect (red LED blinking) and activates the STOP output.
The ENABLE signal is activated while The STOP signal is still active.
!The sensor immediately releases the STOP signal, but maintains the defect signalling (red LED
blinking).
"The sensor is re-enabled and, after waiting for a time corresponding to DELAY CONTROL
(green LED blinking), it resumes the normal control (green LED permanently lit).
Electrical Characteristics of ENABLE signal.
0 - 24 VDC
To ensure a correct system operation, each ISSC.. sensor must have its ENABLE
signal connected to the machine in such a way that the system can distinguish
among the following:
-a stop due to an operator action
-a stop due to a fault detection
-a machine position is working
-a standstill machine position
Interpretation of the signalling lights located on the sensors
Green Led ON Sensor under normal control;
No defects detected by the sensor.
Green LED FLASHING Sensor under automatic numbering procedure.
Sensor in Delay Control phase
Sensor disabled via HW or SW
Red LED FLASHING During machine operation the sensor detected a
defect.
1 flash NEP (nep)
2 flashes SLUB - (yarn reduction)
3 flashes SLUB + (slub or tangle)
4 flashes YARN - (yarns missing)
5 flashes YARN + (yarns added)
8 flashes Yarn not running in the correct
position or dirtiness accumulation
Lit NOYARN (yarn missing )
Green LED ON
Red LED ON
Sensor locked. Switch off and on the system. If the
condition persists, replace the sensor.
Green LED OFF
Red LED OFF
Sensor not powered.
Green LED FLASHING
Red LED FLASHING
Indicates a sensor fault (e.g. Loss of stored data).
Try to reprogram the sensor.
If the fault remains, replace the sensor

Operation
SMART CLEARER -3.7 -
Parameters that affect the sensor detection features
The ISSC.. series sensors are microprocessor based electronic clearers capable of
detecting the most common types of yarn defects:
Presence of neps
Irregular yarn reduction
Irregular slubs or tangles of yarn
Missing ply in the yarn structure
Added ply in the yarn structure
The operation principle of the sensor is based on the image variation of the yarn
shape, detected by a tiny " microcamera " fitted inside the sensor itself.
The microprocessor embedded in the sensor, processes the images provided by the
" microcamera " through a special program loaded into the sensor memory, which
is able to control the quality level of the yarn running inside the sensor and to
detect / discriminate the presence of the above mentioned defects. The variables of
this program are represented by the settings connected to the article which is being
controlled, i.e. the settings that can be defined, changed and loaded into the
sensors by means of the SMART CLEARER system:
NEP (nep)
SLUB – (yarn reduction)
SLUB + (slub/tangle)
YARN - (missing ply)
YARN + (added ply)
NOYARN (yarn missing)
SPEED (yarn collection speed in meters per minute)
The quality control performed by ISSC.. sensors is also affected by other factors
such as:
DELAY CONTROL (waiting time before starting the control process)
MONITOR/CONTROL (sensor operating mode)
LOCK/UNLOCK (touch light button operating mode)
STOP NO/NC (Stop output operating mode)
STOP CP ( STOP output as continuous (C) or pulse (P) (2 second) signal)
ENABLE NO/NC (Enable input operating mode)
ABS/REL (sensor operating mode)
CAL AUTO/MANUAL (Automatic/Manual calibration of sensors)
NEP
This function allows to detect the presence of a yarn defect interpreted as "nep",
according to the following programmable characteristics:
Thickening Percentage = 1 999% (against nominal ø)
Minimum Defect Length = 0.1 10 mm.
The ISSC.. sensor signals an error when it detects a yarn zone equal to Minimum
Defect Length with a nominal diameter value greater than or equal to the
Thickening Percentage.
SLUB -
This function allows to detect the yarn defects (reduction) according to the
following programmable characteristics:
reduction Percentage = 1 99% (against nominal ø)
Minimum Defect Length = 1 100 mm.
The ISSC.. sensor signals an error when it detects a defect matching the
programmed settings (reduction Percentage - Minimum Defect Length).

Operation
- 3.8 - SMART CLEARER
SLUB +
This function allows to detect the yarn defects (slub-tangle) according to the
following programmable characteristics:
Thickening Percentage = 1 999% (against nominal ø)
Minimum Defect Length = 1 100 mm.
The ISSC.. sensor signals an error when it detects a defect matching the
programmed settings (Thickening Percentage - Minimum Defect Length).
YARN -
This function allows to detect the yarn defect (missing ply) according to the
following programmable characteristics:
Reduction Percentage = 1 99% (against nominal ø)
Minimum Defect Length = 0.1 40 m
The ISSC.. sensor signals an error when it detects a defect matching the
programmed settings (Reduction Percentage - Minimum Defect Length).
YARN +
This function allows to detect the yarn defect (added ply) according to the
following programmable characteristics:
Thickening Percentage = 1 999% (against nominal ø)
Minimum Defect Length = 0.1 40 m
The ISSC.. sensor signals an error when it detects a defect matching the
programmed settings (Thickening Percentage -Minimum defect Length).
NO YARN
This function allows to detect the yarn missing condition according to the
following programmable characteristics:
Reduction Percentage = 1 99% (against nominal ø)
Minimum Defect Length = 0.1 40 m
The ISSC.. sensor signals an error (i.e. the yarn missing condition) when it detects
a defect matching the programmed setting (Reduction Percentage – Minimum
Defect Length).
In this case the sensor will always activate the stop output independently of the
programmed operating mode (either Monitor or Control).
As it must actually detect a yarn missing condition, the reduction percentage
should be set to a high value (i.e. 80 90%).
SPEED
Is the yarn collection speed of the machine; the Minimum Defect Length values are
converted into a ISSC.. sensor reaction time depending on this speed
(Programmable as 1 m/min to 2000 m/min.).
Added ply
Missing ply