Weft Stop Motions for air-jet weaving machines

Product catalog summary

Overview
The document describes the ELTEX optical weft stop motion system, which includes an optical weft sensor and a central control unit designed for weaving machines. The system is intended to detect weft yarn presence and faults during the weaving process.

Optical Weft Sensor
The optical weft sensor is a reflecting type sensor that should be installed at the front of the reed without causing damage. It is equipped with optical components to detect the weft across the air channel. The sensor's size and support must be customized according to the weaving machine's space and reed design.

Central Control Unit 22000
The central control unit features two channels and inputs for weft sensors, including an ANTI weft sensor for detecting broken weft yarns. It can detect both positive and negative changes in sensor signals, accommodating both light and dark yarns.

Functions and Specifications

Power Supply: 24 V DC
Relay Stop Output: Normally energized, de-energizes for 1 second upon weft fault. Max load: 2 x 1A / 125V AC or 2 x 2A / 30 V DC.
Size: Europe size board 100 x 160 mm with a 32-pole DIN 41612 series D connector.
Electronic Stop Output: Open collector output, short circuits to ground for 1 second during a weft fault. Max load: 100 mA.
Yarn Arrival Output: Provides a 50 ms pulse synchronized with yarn arrival time.
Input Synchronizing Switch: Synchronization with the machine via proximity or Eltex light switch. Defines the expected yarn arrival time frame.
Idle Pick Input: Inhibits stop outputs when weaving without weft.
ON/OFF Switch: Inhibits stop outputs when off, allowing machine operation without weft.
ANTI Switch: Toggles the ANTI weft sensor.
Filter Switch: Adjusts sensitivity for dust particles on the second channel.
LED Indicators: Five indicators for stop channels, weft sensor signals, and synchronizing switch signal.
Sensitivity Adjustment: Potentiometer for setting channel sensitivity.
Test Socket: Five pole socket with connections for internal power, ground, synchronizing switch signal, and yarn arrival outputs.

Contact Information
Contact details for ELTEX offices in Sweden, USA, Ireland, and Spain are provided for further inquiries.

Catalog excerpts

Weft Stop Motions for air-jet weaving machines -1

MultiFusor DC2 table.main {} tr.row {} td.cell {} div.block {} div.paragraph {} .font0 { font:9.00pt "Arial", sans-serif; } .font1 { font:14.00pt "Arial", sans-serif; } .font2 { font:24.00pt "Arial", sans-serif; } .font3 { font:10.00pt "Franklin Gothic Medium", sans-serif; } ELTEX optical weft stop motion Weft The optical weft sensor is of reflecting type. The weft sensor should be fitted on the front of the reed. It will not damage the reed. The weft sensor has a set of optical components enabling the detection of the weft across the entire air channel. The size of the optical weft sensor, the angles of the optical components and the sensor support must be made according to the space available on the weaving machine and to the design of the reed. Central control unit 22000 The central control unit is equipped with two channels and two inputs for weft sensors. The second channel is used for an ANTI weft sensor. This weft sensor should be placed on the reed, at a point the weft yarn does not reach, unless the weft is broken. The central control unit can detect both a positive and a negative change of the sensor signal. This means that both light and dark coloured yarns can be detected. Functions and specifications Power supply 24 V DC Relay stop output The relay is normally energized. It drops for 1 second when a weft fault occurs. Max load on relay contacts: 2 x 1A / 125V AC or 2 x 2A / 30 V DC Size Europe size board 100 x 160 mm. Equipped with a Europe connector DIN 41612 series D, 32 poles

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Weft Stop Motions for air-jet weaving machines -2

MultiFusor DC2 table.main {} tr.row {} td.cell {} div.block {} div.paragraph {} .font0 { font:5.00pt "Arial", sans-serif; } .font1 { font:7.00pt "Arial", sans-serif; } .font2 { font:8.00pt "Arial", sans-serif; } .font3 { font:9.00pt "Arial", sans-serif; } .font4 { font:10.00pt "Franklin Gothic Medium", sans-serif; } Electronic stop output Yarn arrivai output An open collector output is also available. The output is short circuit to ground during 1 second when a weft fault occurs. Max load is 100 mA. One output for each channel is available notifying the arrival time of the yarn. The pulse is...

Open the catalog to page 2

Weft Stop Motions for air-jet weaving machines

Weft Stop Motions for air-jet weaving machines

Catalog excerpts

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